MOC3051M, MOC3052M — 6-Pin DIP Random-Phase Optoisolators Triac Drivers (600 Volt Peak)
©2005 Fairchild Semiconductor Corporation www.fairchildsemi.com
MOC3051M, MOC3052M Rev. 1.0.5
September 2009
MOC3051M, MOC3052M
6-Pin DIP Random-Phase Optoisolators Triac Drivers
(600 Volt Peak)
Features
Excellent I
FT
stability—IR emitting diode has low
degradation
High isolation voltage—minimum 7500 peak VAC
Underwriters Laboratory (UL) recognized—
File #E90700, Volume 2
600V peak blocking voltage
IEC60747-5-2 approved (File #94766)
– Ordering option V (e.g. MOC3052VM)
Applications
Solenoid/valve controls
Lamp ballasts
Static AC power switch
Interfacing microprocessors to 115 and 240 Vac
peripherals
Solid state relay
Incandescent lamp dimmers
Temperature controls
Motor controls
Description
The MOC3051M and MOC3052M consist of a AlGaAs
infrared emitting diode optically coupled to a non-zero-
crossing silicon bilateral AC switch (triac). These devices
isolate low voltage logic from 115 and 240 Vac lines to
provide random phase control of high current triacs or
thyristors. These devices feature greatly enhanced static
dv/dt capability to ensure stable switching performance
of inductive loads.
Schematic Package Outlines
MAIN TERM.
NC*
N/C
*DO NOT CONNECT
(TRIAC SUBSTRATE)
1
2
3
ANODE
CATHODE
4
5
6MAIN TERM.
©2005 Fairchild Semiconductor Corporation www.fairchildsemi.com
MOC3051M, MOC3052M Rev. 1.0.5 2
MOC3051M, MOC3052M — 6-Pin DIP Random-Phase Optoisolators Triac Drivers (600 Volt Peak)
Absolute Maximum Ratings
(T
A
= 25°C unless otherwise specified.)
Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be
operable above the recommended operating conditions and stressing the parts to these levels is not recommended.
In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability.
The absolute maximum ratings are stress ratings only.
Note:
1. Isolation surge votlage, V
ISO
, is an internal device breakdown rating. For this text, pins 1 and 2 are common,
and pins 4, 5 and 6 are common.
Symbol Parameters Value Units
TOTAL DEVICE
T
STG
Storage Temperature -40 to +150 °C
T
OPR
Operating Temperature -40 to +85 °C
T
SOL
Lead Solder Temperature (Wave Solder) 260 for 10 sec °C
T
J
Junction Temperature Range -40 to +100 °C
V
ISO
Isolation Surge Voltage
(1)
(peak AC voltage, 60Hz, 1 sec. duration) 7500 Vac(pk)
P
D
Total Device Power Dissipation @ 25°C
Derate above 25°C
330 mW
4.4 mW/°C
EMITTER
I
F
Continuous Forward Current 60 mA
V
R
Reverse Voltage 3 V
P
D
Total Device Power Dissipation @ 25°C
Derate above 25°C
100 mW
1.33 mW/°C
DETECTOR
V
DRM
Off-State Output Terminal Voltage 600 V
I
TSM
Peak Repetitive Surge Current (PW = 100
µ
s, 120pps) 1 A
P
D
Total Power Dissipation @ 25°C Ambient
Derate above 25°C
300 mW
4 mW/°C
©2005 Fairchild Semiconductor Corporation www.fairchildsemi.com
MOC3051M, MOC3052M Rev. 1.0.5 3
MOC3051M, MOC3052M — 6-Pin DIP Random-Phase Optoisolators Triac Drivers (600 Volt Peak)
Electrical Characteristics
(T
A
= 25°C unless otherwise specified.)
Individual Component Characteristics
Transfer Characteristics
Isolation Characteristics
*Typical values at T
A
= 25°C
Notes:
2. Test voltage must be applied within dv/dt rating.
3. All devices are guaranteed to trigger at an I
F
value less than or equal to max I
FT
. Therefore, recommended operating
I
F
lies between max. 15A for MOC3051M, 10mA for MOC3052M and absolute max. I
F
(60mA).
Symbol Parameters Test Conditions Min. Typ.* Max. Units
EMITTER
V
F
Input Forward Voltage I
F
= 10mA 1.18 1.5 V
I
R
Reverse Leakage Current V
R
= 3V 0.05 100 µA
DETECTOR
I
DRM
Peak Blocking Current, Either Direction V
DRM
, I
F
= 0
(2)
10 100 nA
V
TM
Peak On-State Voltage, Either Direction I
TM
= 100mA peak, I
F
= 0 1.7 2.5 V
dv/dt Critical Rate of Rise of Off-State Voltage I
F
= 0 (Figure 7, @ 400V) 1000 V/µs
Symbol DC Characteristics Test Conditions Device Min. Typ.* Max. Units
I
FT
LED Trigger Current,
Either Direction
Main terminal
Voltage = 3V
(3)
MOC3051M 15 mA
MOC3052M 10
I
H
Holding Current,
Either Direction
All 220 µA
Symbol Characteristic Test Conditions Min. Typ.* Max. Units
V
ISO
Input-Output Isolation
Voltage
f = 60Hz, t = 1 sec. 7500 Vac(pk)
R
ISO
Isolation Resistance V
I-O
= 500VDC 10
11
Ω
C
ISO
Isolation Capacitance V = 0V, f = 1MHz 0.2 pF
©2005 Fairchild Semiconductor Corporation www.fairchildsemi.com
MOC3051M, MOC3052M Rev. 1.0.5 4
MOC3051M, MOC3052M — 6-Pin DIP Random-Phase Optoisolators Triac Drivers (600 Volt Peak)
Safety and Insulation Ratings
As per IEC 60747-5-2, this optocoupler is suitable for “safe electrical insulation” only within the safety limit data.
Compliance with the safety ratings shall be ensured by means of protective circuits.
Symbol Parameter Min. Typ. Max. Unit
Installation Classifications per DIN VDE 0110/1.89
Table 1
For Rated Main Voltage < 150Vrms I-IV
For Rated Main voltage < 300Vrms I-IV
Climatic Classification 55/100/21
Pollution Degree (DIN VDE 0110/1.89) 2
CTI Comparative Tracking Index 175
V
PR
Input to Output Test Voltage, Method b,
V
IORM
x 1.875 = V
PR
, 100% Production Test
with tm = 1 sec, Partial Discharge < 5pC
1594 V
peak
Input to Output Test Voltage, Method a,
V
IORM
x 1.5 = V
PR
, Type and Sample Test
with tm = 60 sec, Partial Discharge < 5pC
1275 V
peak
V
IORM
Max. Working Insulation Voltage 850 V
peak
V
IOTM
Highest Allowable Over Voltage 6000 V
peak
External Creepage 7 mm
External Clearance 7 mm
Insulation Thickness 0.5 mm
RIO Insulation Resistance at Ts, V
IO
= 500V 10
9
Ω
©2005 Fairchild Semiconductor Corporation www.fairchildsemi.com
MOC3051M, MOC3052M Rev. 1.0.5 5
MOC3051M, MOC3052M — 6-Pin DIP Random-Phase Optoisolators Triac Drivers (600 Volt Peak)
Typical Performance Curves
I
F
vs. Temperature (normalized)
Figure 3 shows the increase of the trigger current when
the device is expected to operate at an ambient temper-
ature below 25°C. Multiply the normalized I
FT
shown this
graph with the data sheet guaranteed I
FT
.
Example:
T
A
= -40°C, I
FT
= 10 mA
I
FT
@ -40°C = 10 mA x 1.4 = 14 mA
Phase Control Considerations
LED Trigger Current versus PW (normalized)
Random Phase Triac drivers are designed to be phase
controllable. They may be triggered at any phase angle
within the AC sine wave. Phase control may be accom-
plished by an AC line zero cross detector and a variable
pulse delay generator which is synchronized to the zero
cross detector. The same task can be accomplished by a
microprocessor which is synchronized to the AC zero
crossing. The phase controlled trigger current may be a
very short pulse which saves energy delivered to the
input LED. LED trigger pulse currents shorter than 100µs
must have an increased amplitude as shown on Figure 4.
This graph shows the dependency of the trigger current
I
FT
versus the pulse width can be seen on the chart
delay t(d) versus the LED trigger current.
I
FT
in the graph I
FT
versus (PW) is normalized in respect
to the minimum specified I
FT
for static condition, which is
specified in the device characteristic. The normalized I
FT
has to be multiplied with the devices guaranteed static
trigger current.
Example:
Guaranteed I
FT
= 10 mA, Trigger pulse width PW = 3µs
I
FT
(pulsed) = 10 mA x 5 = 50mA
Figure 3. Trigger Current vs. Ambient Temperature Figure 4. LED Current Required to Trigger vs. LED Pulse Width
IFT - TRIGGER CURRENT (NORMALIZED)
Figure 1. LED Forward Voltage vs. Forward Current
VF - FORWARD VOLTAGE (V)
Figure 2. On-State Characteristics
- ON-STATE CURRENT (mA)
IM
IFT - NORMALIZED LED TRIGGER CURRENT
IF - LED FORWARD CURRENT (mA)
110100
0.9
1.0
1.1
1.2
1.3
1.4
1.5
1.6
1.7
T
A
= -40°C
T
A
= 25°C
T
A
= 85°C
VTM - ON-STATE VOLTAGE (V)
-3 -2 -1 0 1 2 3
-600
-400
-200
0
200
400
600
TA
- AMBIENT TEMPERATURE (°C)
-40 -20 0 20 40 60 80 100
0.6
0.8
1.0
1.2
1.4
NORMALIZED TO TA = 25°C
PWIN - LED TRIGGER PULSE WIDTH (µs)
110100
0
5
10
15 NORMALIZED TO:
PWIN > 100µs
©2005 Fairchild Semiconductor Corporation www.fairchildsemi.com
MOC3051M, MOC3052M Rev. 1.0.5 6
MOC3051M, MOC3052M — 6-Pin DIP Random-Phase Optoisolators Triac Drivers (600 Volt Peak)
Figure. 7 Leakage Current, I DRM vs. Temperature
Figure. 6 Holding Current, IH vs. Temperature
T
A- AMBIENT TEMPERATURE (
o
C)
-40 -20 0 20 40 60 80 100
IDRM - LEAKAGE CURRENT (nA)
0.1
1
10
100
1000
T
A - AMBIENT TEMPERATURE (
o
C)
IH - HOLDING CURRENT (mA)
-40
1.0
0.9
0-30 -20 -10 0 10 20 30 4050607080
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
dv/dt (V/ms)
0.001
1.5
0.5 10000
NORMALIZED TO:
IFT at 3 V
IFT - LED TRIGGER CURRENT (NORMALIZED)
1.4
1.3
1.2
1.1
1
0.9
0.8
0.7
0.6
0.01 0.1 1 10 100 1000
Figure. 8 LED Trigger Current, IFT vs. dv/dt
Figure 5. Minimum Time for LED Turn–Off to Zero
Cross of AC Trailing Edge
AC Sine
0°180°
LED PW
LED Current
LED turn off min. 200µs
Minimum LED Off Time in Phase Control
Applications
In Phase control applications one intends to be able to
control each AC sine half wave from 0° to 180°. Turn on
at 0° means full power and turn on at 180° means zero
power. This is not quite possible in reality because triac
driver and triac have a fixed turn on time when activated
at zero degrees. At a phase control angle close to 180°
the driver’s turn on pulse at the trailing edge of the AC
sine wave must be limited to end 200ms before AC zero
cross as shown in Figure 5. This assures that the triac
driver has time to switch off. Shorter times may cause
loss of control at the following half cycle.
IFT versus dv/dt
Triac drivers with good noise immunity (dv/dt static) have
internal noise rejection circuits which prevent false
triggering of the device in the event of fast raising line
voltage transients. Inductive loads generate a commutat-
ing dv/dt that may activate the triac drivers noise sup-
pression circuits. This prevents the device from turning
on at its specified trigger current. It will in this case go
into the mode of “half waving” of the load. Half waving of
the load may destroy the power triac and the load.
Figure 8 shows the dependency of the triac drivers IFT
versus the reapplied voltage rise with a Vp of 400V. This
dv/dt condition simulates a worst case commutating
dv/dt amplitude.
It can be seen that the IFT does not change until a
commutating dv/dt reaches 1000V/ms. The data sheet
specified IFT is therefore applicable for all practical
inductive loads and load factors.
©2005 Fairchild Semiconductor Corporation www.fairchildsemi.com
MOC3051M, MOC3052M Rev. 1.0.5 7
MOC3051M, MOC3052M — 6-Pin DIP Random-Phase Optoisolators Triac Drivers (600 Volt Peak)
t(delay), t(f) versus IFT
The triac driver’s turn on switching speed consists of a
turn on delay time t(d) and a fall time t(f). Figure 9 shows
that the delay time depends on the LED trigger current,
while the actual trigger transition time t(f) stays constant
with about one micro second.
The delay time is important in very short pulsed opera-
tion because it demands a higher trigger current at very
short trigger pulses. This dependency is shown in the
graph IFT vs. LED PW.
The turn on transition time t(f) combined with the power
triac’s turn on time is important to the power dissipation
of this device.
1. The mercury wetted relay provides a high speed
repeated pulse to the D.U.T.
2. 100x scope probes are used, to allow high speeds and
voltages.
3. The worst-case condition for static dv/dt is established
by triggering the D.U.T. with a normal LED input
current, then removing the current. The variable RTEST
allows the dv/dt to be gradually increased until the
D.U.T. continues to trigger in response to the applied
voltage pulse, even after the LED current has been
removed. The dv/dt is then decreased until the D.U.T.
stops triggering. τRC is measured at this point and
recorded.
SCOPE
IFT
VTM
t(d)t(f)
ZERO CROSS
DETECTOR
EXT. SYNC
V
out
FUNCTION
GENERATOR
PHASE CTRL.
PW CTRL.
PERIOD CTRL.
V
o AMPL. CTRL.
IFT
VTM
10kΩDUT
100 Ω
ISOL. TRANSF.
AC
115 VAC
Switching Time Test Circuit
Figure 9. Delay Time, t(d), and Fall Time, t(f),
vs. LED Trigger Current
IFT - LED TRIGGER CURRENT (mA)
t(delay) AND t(fall) ( s)
µ
10 20 30 40 50 60
0.1
1
10
td
tf
Figure 10. Static dv/dt Test Circuit
+400
Vdc
PULSE
INPUT
RTEST
CTEST
R = 1kΩ
MERCURY
WETTED
RELAY D.U.T.
X100
SCOPE
PROBE
APPLIED VOLTAGE
WAVEFORM
Vmax = 400V
dv/dt = 0.63V
τRC
252
τRC
=
τRC
252V
0 VOLTS
©2005 Fairchild Semiconductor Corporation www.fairchildsemi.com
MOC3051M, MOC3052M Rev. 1.0.5 8
MOC3051M, MOC3052M — 6-Pin DIP Random-Phase Optoisolators Triac Drivers (600 Volt Peak)
Figure 11. Basic Driver Circuit Figure 12. Triac Driver Circuit for Noisy Environments
Figure 13. Triac Driver Circuit for Extremely Noisy Environments
VCC
RET.
RLED TRIAC DRIVER POWER TRIAC
AC LINE
LOAD
R
Q
CONTROL
R
TRIAC DRIVER POWER TRIAC
RLED
VCC
RET.
CONTROL
RS
CS
MOV
LOAD
AC LINE
R
TRIAC DRIVER
POWER TRIAC
RS
CS
MOV
LOAD
AC LINE
VCC
RET.
CONTROL
RLED
RLED = (VCC - V F LED - V sat Q)/IFT
R = Vp AC line/ITSM
Typical Snubber values RS = 33 Ω, CS = 0.01 µF
MOV (Metal Oxide Varistor) protects triac and
driver from transient overvoltages >VDRM max.
Recommended snubber to pass IEEE472 and IEC255-4 noise tests
RS = 47Ω, CS = 0.01µF
Applications Guide
Basic Triac Driver Circuit
The new random phase triac driver family MOC3052M
and MOC3051M are very immune to static dv/dt which
allows snubberless operations in all applications where
external generated noise in the AC line is below its guar-
anteed dv/dt withstand capability. For these applications
a snubber circuit is not necessary when a noise insensi-
tive power triac is used. Figure 11 shows the circuit
diagram. The triac driver is directly connected to the triac
main terminal 2 and a series Resistor R which limits the
current to the triac driver. Current limiting resistor R must
have a minimum value which restricts the current into the
driver to maximum 1A.
R = Vp AC/ITM max rep. = Vp AC/1A
The power dissipation of this current limiting resistor and
the triac driver is very small because the power triac
carries the load current as soon as the current through
driver and current limiting resistor reaches the trigger
current of the power triac. The switching transition times
for the driver is only one micro second and for power
triacs typical four micro seconds.
Triac Driver Circuit for Noisy Environments
When the transient rate of rise and amplitude are
expected to exceed the power triacs and triac drivers
maximum ratings a snubber circuit as shown in Figure
12 is recommended. Fast transients are slowed by the
R-C snubber and excessive amplitudes are clipped by
the Metal Oxide Varistor MOV.
Triac Driver Circuit for Extremely Noisy
Environments
As specified in the noise standards IEEE472 and
IEC255-4.
Industrial control applications do specify a maximum
transient noise dv/dt and peak voltage which is super-
imposed onto the AC line voltage. In order to pass this
environment noise test a modified snubber network as
shown in Figure 13 is recommended.
©2005 Fairchild Semiconductor Corporation www.fairchildsemi.com
MOC3051M, MOC3052M Rev. 1.0.5 9
MOC3051M, MOC3052M — 6-Pin DIP Random-Phase Optoisolators Triac Drivers (600 Volt Peak)
Package Dimensions
Through Hole Surface Mount
0.4" Lead Spacing Recommended Pad Layout for
Surface Mount Leadform
Note:
All dimensions are in inches (millimeters).
0.350 (8.89)
0.320 (8.13)
0.260 (6.60)
0.240 (6.10)
0.300 (7.62)
0.070 (1.77)
0.040 (1.02) 0.014 (0.36)
0.010 (0.25)
0.200 (5.08)
0.115 (2.93)
0.100 (2.54)
0.015 (0.38)
0.020 (0.50)
0.016 (0.41) 0.100 (2.54) 15°
0.012 (0.30)
Pin 1 ID
SEATING PLANE
0.350 (8.89)
0.320 (8.13)
0.260 (6.60)
0.240 (6.10)
0.390 (9.90)
0.332 (8.43)
0.070 (1.77)
0.040 (1.02) 0.014 (0.36)
0.010 (0.25)
0.300 (7.62)
0.035 (0.88)
0.006 (0.16)
0.012 (0.30)
0.008 (0.20)
0.200 (5.08)
0.115 (2.93)
0.025 (0.63)
0.020 (0.51)
0.020 (0.50)
0.016 (0.41)
0.100 [2.54]
PIN 1 ID
SEATING PLANE
0.350 (8.89)
PIN 1 ID
0.320 (8.13)
0.260 (6.60)
0.240 (6.10)
0.070 (1.77)
SEATING PLANE
0.040 (1.02) 0.014 (0.36)
0.010 (0.25)
0.200 (5.08)
0.115 (2.93)
0.020 (0.50)
0.016 (0.41)
0.100 (2.54)
0.100 (2.54)
0.015 (0.38)
0.012 (0.30)
0.008 (0.21)
0.425 (10.80)
0.400 (10.16)
0.070
(
1.78
)
0.060
(
1.52
)
0.030
(
0.76
)
0.100
(
2.54
)
0.305
(
7.75
)
0.425
(
10.79
)
©2005 Fairchild Semiconductor Corporation www.fairchildsemi.com
MOC3051M, MOC3052M Rev. 1.0.5 10
MOC3051M, MOC3052M — 6-Pin DIP Random-Phase Optoisolators Triac Drivers (600 Volt Peak)
Ordering Information
Marking Information
Option
Order Entry Identifier
(Example) Description
No option MOC3051M Standard Through Hole Device
S MOC3051SM Surface Mount Lead Bend
SR2 MOC3051SR2M Surface Mount; Tape and Reel
T MOC3051TM 0.4" Lead Spacing
V MOC3051VM VDE 0884
TV MOC3051TVM VDE 0884, 0.4" Lead Spacing
SV MOC3051SVM VDE 0884, Surface Mount
SR2V MOC3051SR2VM VDE 0884, Surface Mount, Tape and Reel
MOC3051
1
2
6
43 5
*Note – Parts that do not have the ‘V’ option (see definition 3 above) that are
marked with date code ‘325’ or earlier are marked in portrait format.
Definitions
1Fairchild logo
2Device number
3VDE mark (Note: Only appears on parts ordered with VDE
option – See order entry table)
4 One digit year code, e.g., ‘3’
5Two digit work week ranging from ‘01’ to ‘53’
6 Assembly package code
V X YY
Q
©2005 Fairchild Semiconductor Corporation www.fairchildsemi.com
MOC3051M, MOC3052M Rev. 1.0.5 11
MOC3051M, MOC3052M — 6-Pin DIP Random-Phase Optoisolators Triac Drivers (600 Volt Peak)
Tape Dimensions
Note:
All dimensions are in millimeters.
4.0 ± 0.1
Ø1.5 MIN
User Direction of Feed
2.0 ± 0.05
1.75 ± 0.10
11.5 ± 1.0
24.0 ± 0.3
12.0 ± 0.1
0.30 ± 0.05
21.0 ± 0.1
4.5 ± 0.20
0.1 MAX 10.1 ± 0.20
9.1 ± 0.20
Ø1.5 ± 0.1/-0
©2005 Fairchild Semiconductor Corporation www.fairchildsemi.com
MOC3051M, MOC3052M Rev. 1.0.5 12
MOC3051M, MOC3052M — 6-Pin DIP Random-Phase Optoisolators Triac Drivers (600 Volt Peak)
Reflow Profile
Profile Freature Pb-Free Assembly Profile
Temperature Min. (Tsmin) 150°C
Temperature Max. (Tsmax) 200°C
Time (tS) from (Tsmin to Tsmax) 60–120 seconds
Ramp-up Rate (tL to tP) 3°C/second max.
Liquidous Temperature (TL) 217°C
Time (tL) Maintained Above (TL) 60–150 seconds
Peak Body Package Temperature 260°C +0°C / –5°C
Time (tP) within 5°C of 260°C 30 seconds
Ramp-down Rate (TP to TL) 6°C/second max.
Time 25°C to Peak Temperature 8 minutes max.
Time (seconds)
Temperature (°C)
Time 25°C to Peak
260
240
220
200
180
160
140
120
100
80
60
40
20
0
TL
ts
tL
tP
TP
Tsmax
Tsmin
120
Preheat Area
Max. Ramp-up Rate = 3°C/S
Max. Ramp-down Rate = 6°C/S
240 360
©2005 Fairchild Semiconductor Corporation www.fairchildsemi.com
MOC3051M, MOC3052M Rev. 1.0.5 13
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1. Life support devices or systems are devices or systems which, (a) are
intended for surgical implant into the body or (b) support or sustain life,
and (c) whose failure to perform when properly used in accordance
with instructions for use provided in the labeling, can be reasonably
expected to result in a significant injury of the user.
2. A critical component in any component of a life support, device, or
system whose failure to perform can be reasonably expected to
cause the failure of the life support device or system, or to affect its
safety or effectiveness.
ANTI-COUNTERFEITING POLICY
Fairchild Semiconductor Corporation's Anti-Counterfeiting Policy. Fairchild's Anti-Counterfeiting Policy is also stated on our external website, www.fairchildsemi.com,
under Sales Support.
Counterfeiting of semiconductor parts is a growing problem in the industry. All manufacturers of semiconductor products are experiencing counterfeiting of their parts.
Customers who inadvertently purchase counterfeit parts experience many problems such as loss of brand reputation, substandard performance, failedapplications,
and increased cost of production and manufacturing delays. Fairchild is taking strong measures to protect ourselves and our customers from the proliferation of
counterfeit parts. Fairchild strongly encourages customers to purchase Fairchild parts either directly from Fairchild or from Authorized Fairchild Distributors who are
listed by country on our web page cited above. Products customers buy either from Fairchild directly or from Authorized Fairchild Distributors are genuine parts, have
full traceability, meet Fairchild's quality standards for handling and storage and provide access to Fairchild's full range of up-to-date technicalandproduct information.
Fairchild and our Authorized Distributors will stand behind all warranties and will appropriately address any warranty issues that may arise. Fairchild will not provide
any warranty coverage or other assistance for parts bought from Unauthorized Sources. Fairchild is committed to combat this global problem and encourage our
customers to do their part in stopping this practice by buying direct or from authorized distributors.
PRODUCT STATUS DEFINITIONS
Definition of Terms
Datasheet Identification Product Status Definition
Advance Information Formative / In Design Datasheet contains the design specifications for product development. Specifications may change in
any manner without notice.
Preliminary Datasheet contains preliminary data; supplementary data will be published at a later date. Fairchild
Semiconductor reserves the right to make changes at any time without notice to improve design.
No Identification Needed Full Production Datasheet contains final specifications. Fairchild Semiconductor reserves the right to make changes
at any time without notice to improve the design.
Obsolete Not In Production Datasheet contains specifications on a product that is discontinued by Fairchild Semiconductor.
The datasheet is for reference information only.
Rev. I40
First Production
MOC3051M, MOC3052M — 6-Pin DIP Random-Phase Optoisolators Triac Drivers (600 Volt Peak)
