© 2020 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: BO.11/17/20
Thyristors
Surface Mount – 100V -600V > MCR70xA Series
• Small Size
• Passivated Die Surface for
Reliability and Uniformity
• Low Level Triggering and
Holding Characteristics
• Recommend Electrical
Replacement for C106
• Surface Mount Package −
Case 369C
• To Obtain “DPAK” in
Straight Lead Version
(Shipped in Sleeves): Add
’1’ Suffix to Componant
Number, i.e., MCR706A1
• UL Recognized compound
meeting flammability
rating V-0.
• ESD Ratings: Human
Body Model, 3B > 8000 V
Machine
Model, C > 400 V
• Pb−Free Packages are
Available
Features
PNPN Componants designed for high volume, low cost
consumer applications such as temperature, light and
speed control; process and remote control; and warning
systems where reliability of operation is critical.
Description
MCR70xA Series
Additional Information
Samples
Resources
Datasheet
Pin Out
1
2
3
4
12
3
Functional Diagram
A
G
K
Pb
© 2020 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: BO.11/17/20
Thyristors
Surface Mount – 100V -600V > MCR70xA Series
Rating Symbol Value Unit
Peak Repetitive Off−State Voltage (Note 1)
(TC = − 40 to +110°C, Sine Wave, 50 to 60 Hz, RGK = 1 k Ω)
MCR703A
MCR706A
MCR708A
VDRM,
VRRM
100
400
600
V
Peak Non-Repetitive Off−State Voltage
(180º Conduction Angles; TC = 85ºC)
MCR703A
MCR706A
MCR708A
VDSM
150
450
650
V
On−State RMS Current (180º Conduction Angles; TC = 90ºC) IT(RMS) 4.0 A
Average On-State Current
(180º Conduction Angles)
TC = −40 to +90ºC
TC = +100ºC IT(AV)
2.6
1. 6 A
Non-Repetitive Surge Current
(1/2 Cycle, Sine Wave 60 Hz, TJ = 110°C)
(1/2 Cycle, Sine Wave 1.5 ms, TJ = 110°C)
ITSM
25
35 A
Circuit Fusing Consideration (t = 8.3 ms) I2t 2.6 A²sec
Forward Peak Gate Power (Pulse Width ≤ 1.0 µsec, TC= 90°C) PGM 0.5 W
Forward Peak Gate Current (Pulse Width ≤ 1.0 µsec, TC= 90°C) IGM 0.2 A
Forward Average Gate Power (t = 8.3 ms, TC = 90ºC) PG(AV) 0.1 W
Operating Junction Temperature Range TJ-40 to +110 °C
Storage Temperature Range Tstg -40 to +150 °C
Maximum Ratings (TJ = 25°C unless otherwise noted)
Thermal Characteristics*
Rating Symbol Value Unit
Thermal Resistance, Junction−to−Case RƟJC 3.0 °C/W
Thermal Resistance, Junction−to−Ambient (Note 2) RƟJA 80
Maximum Lead Temperature for Soldering Purposes 1/8" from Case for
10 Seconds TL260 °C
Stresses exceeding Maximum Ratings may damage the Componant. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses
above the Recommended Operating Conditions may affect Componant reliability.
1. VDRM and VRRM for all types can be applied on a continuous basis. Ratings apply for zero or negative gate voltage; however, positive gate voltage shall not be applied concurrent with negative potential on the anode. Blocking voltages
shall not be tested with a constant current source such that the voltage ratings of the Componants are exceeded.
2. Case 369C when surface mounted on minimum pad sizes recommended.
Electrical Characteristics - OFF (TJ = 25°C unless otherwise noted)
Electrical Characteristics - ON (TJ = 25°C unless otherwise noted)
Characteristic Symbol Min Typ Max Unit
Peak Repetitive Forward or Reverse Blocking Current
(VAK = Rated VDRM or VRRM, RGK = 1 k Ω)
TJ = 25°C
TJ = 110°C
IDRM
IRRM
-
-
-
-
10
200 µA
Characteristic Symbol Min Ty p Max Unit
Peak Forward "On" Voltage
(ITM = 8.2 A Peak, Pulse Width = 1 to 2 ms, 2% Duty Cycle) VTM _ _ 2.2 V
Gate Trigger Current (Continuous dc) (Note 3)
(VAK = 12 V; RL = 24 Ω)
TJ = 25°C
TJ = –40°C IGT
_
_
25
_
75
300 µA
Gate Trigger Voltage (Continuous dc) (Note 3)
(VAK = 12 V; RL = 24 Ω)
TJ = 25°C
TJ = –40°C VGT
_
_
_
_
0.8
1. 0 V
Gate Non-Trigger Voltage (Note 3) (VAK= 12 Vdc; RL = 100 Ω, TC =110º) VGD 0.2 _ _ V
Holding Current
(VAK = 12 Vdc, RGK = 1 k Ω) TC = 25ºC
(Initiating Current = 20 mA) TC = −40ºC
IH
–
_
–
–
5.0
10 mA
Peak Reverse Gate Blocking Voltage (IGR = 10 µA) VRGM 10 12.5 18 V
Peak Reverse Gate Blocking Current (VGR = 10 V) IRGM _ _ 1. 2 µA
Total Turn-On Time (Source Voltage = 12 V, RS = 6 kQ)
(ITM = 8.2 A, IGT = 2 mA, Rated VDRM) (Rise Time = 20 ns,
Pulse Width = 10 µs)
tgt _ 2.0 _ µs
© 2020 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: BO.11/17/20
Thyristors
Surface Mount – 100V -600V > MCR70xA Series
Figure 1. RMS Current Derating Figure 2. On−State Power Dissipation
Conduction Angle Conduction Angle
Dynamic Characteristics*
Characteristic Symbol Min Ty p Max Unit
Critical Rate of Rise of Off−State Voltage
(VD = Rated VDRM, RGK = 1 k Ω, Exponential Waveform, Gate Open, Tc = 110ºC) dv/dt − 10 − V/µs
Repetitive Critical Rate of Rise of On−State Current
(Cf = 60 Hz, IPK = 30 A, PW = 100 µs, diG/dt = 1 A/µs) di/dt − − 100 A/µs
3. RGK current not included in measurement.
Voltage Current Characteristic of SCR
Symbol Parameter
VDRM Peak Repetitive Forward Off State Voltage
IDRM Peak Forward Blocking Current
VRRM Peak Repetitive Reverse Off State Voltage
IRRM Peak Reverse Blocking Current
VTM Maximum On State Voltage
IHHolding Current
Quadrant 1
Main Terminal 2+
VTM
IH
IDRM at VDRM
+Voltag
e
O State
Quadrant 3
Main Terminal 2-
+Current
On State
IRRM at VRRM
IH
VTM
Figure 4. Transient Thermal Response
Figure 3. On−State Characteristics
t, TIME (ms)
1.00.
1
1.0
0.
1
0.01
r(t)
,
TRANSIEN T RESIST ANCE (NORMALIZED)
000
,
0
1
000
1
00
1
0
1
ZJC(t) = R JC(t)• r(t
)
© 2020 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: BO.11/17/20
Thyristors
Surface Mount – 100V -600V > MCR70xA Series
Figure 8. Typical Latching Current vs Junction Temperature
Figure 7. Typical Holding Current vs Junction Temperature
I
, LATCHING CURRENT (mA)
L
110-40
TJ, JUNCTION TEMPERA TURE
(
°C
)
2.0
1.5
0.5
0
20-200 40
1.0
60 80 100
110-40
TJ, JUNCTION TEMPERA TURE
(
°C
)
2.0
1.5
I
H, HOLDING CURRENT (mA)
0.5
0
20-200 40
1.0
60 80 100
-20 40-40
TJ, JUNCTION TEMPERA TURE
(
°C
)
35
30
25
20
15
0
, GATE TRIGGER CURRENT ( A)
I
GT
20 10060 80 110
Figure 5. Typical Gate Trigger Current vs Junction Temperature Figure 6. Typical Gate Trigger Voltage vs Junction Temperature
TJ, JUNCTION TEMPERA TURE
(
°C
)
1.0
0
0.5
VGT, GATE TRIGGER VOLTAGE (VOLTS)
-20 40-40 02 0 10060 80 110
200
-20 0-20 0
© 2020 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: BO.11/17/20
Thyristors
Surface Mount – 100V -600V > MCR70xA Series
1. Dimensioning and Tolerancing per ANSI Y14.5M, 1982.
2. Controlling Dimension: Inch.
STYLE 6:
PIN 1. GATE
2. ANODE
3. CATHODE
4. ANODE
Dimensions Soldering Footprint
Dim Inches Millimeters
Min Max Min Max
A0.087 0.094 2.20 2.40
A1 0.000 0.005 0.00 0.12
b0.022 0.030 0.55 0.75
b2 0.026 0.033 0.65 0.85
b3 0.209 0.217 5.30 5.50
c0.019 0.023 0.49 0.59
c2 0.019 0.023 0.49 0.59
D0.213 0.224 5.40 5.70
E0.252 0.260 6.40 6.60
e0.091 2.30
H0.374 0.406 9.50 10.30
L0.058 0.070 1.47 1.78
L1 0.114 2.90
L2 0.019 0.023 0.49 0.59
L3 0.053 0.065 1.35 1.65
L4 0.028 0.039 0.70 1. 0 0
Z0.154 - 3.90 -
b
D
E
b3
L3
L4
b2
M
0.005 (0).13 C
c2
A
c
C
Z
12 3
4
A1
H
A
B
C
L1
L
H
L2 GAUGE
PLANE
e
Z
NOTE 7 Bottom View Bottom View
Alternate
Construction
Seating
Plane
Side View
Top View
Detail A
Rotated 90°C W
Detail A
5.80
0.228
2.58
0.102
1.60
0.063
6.20
0.244
3.00
0.118
6.17
0.243
mm
inches
SCALE 3: 1
© 2020 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: BO.11/17/20
Thyristors
Surface Mount – 100V -600V > MCR70xA Series
Componant Package Shipping
MCR703AT4
DPAK
369C
2500
Tape & Reel
MCR703AT4G 369C
(Pb-Free)
MCR706AT4 369C
MCR706AT4G 369C
(Pb-Free)
MCR708A 369C
4000
Units/ Box
MCR708AG 369C
(Pb-Free)
MCR708A1
DPAK-3
369D
MCR708A1G 369D
(Pb-Free)
MCR708AT4
DPAK
369C
2500
Tape & Reel
MCR708AT4G 369C
(Pb-Free)
Dimensions Part Marking System
1. Dimensioning and Tolerancing per ANSI Y14.5M, 1982.
2. Controlling Dimension: Inch.
STYLE 6:
PIN 1. GATE
2. ANODE
3. CATHODE
4. ANODE
Dim
Inches Millimeters
Min Max Min Max
A0.213 0.224 5.40 5.70
B0.252 0.260 6.40 6.60
C0.087 0.094 2.20 2.40
D0.024 0.030 0.60 0.75
E0.022 0.026 0.55 0.65
F0.031 0.039 0.78 0.98
G0.091 2.30
H0.046 0.050 1.18 1.28
J0.019 0.023 0.49 0.59
K0.291 0.315 7.40 8.00
R0.209 0.217 5.30 5.50
S0.063 1.60
V0.053 0.065 1.35 1.65
Z0.150 3.80
Pin Assignment
1 Gate
2 Anode
3 Cathode
4 Anode
Ordering Information
12
3
4
1
23
4
1212 33
44
VV
SSAA
KK
TT
SESEATATININGG
PLANEPLANE
RR
BB
FF
GG
DD3 PL3 PL
MM
0.13 (0.0050.13 (0.005
))
TT
CC
EE
JJ
HH
ZZ
Disclaimer Notice - Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and test each product selected for their own
applications. Littelfuse products are not designed for, and may not be used in, all applications. Read complete Disclaimer Notice at: www.littelfuse.com/disclaimer-electronics
DPAK-3
Case 369D-01
Issue B
CR
70xAG
YMAXX
x =D, M, or N
Y =Year
M =Month
A =Assembly Site
XX =Lot Serial Code
G =Pb-Free Package
CR
4DLMG
YMAXX
DPAK-3
Case 369C
Style 6
DPAK-3
Case 369D
Style 6
