R
o
H
S
www.littelfuse.com 3 - 68 © 2006 Littelfuse • Telecom Design Guide
Two-chip SLIC Protector Modified TO-220
This two-chip SLIC modified TO-220 unidirectional protector is constructed with a
SIDACtor® device and an integrated diode. It protects SLICs (Subscriber Line Interface
Circuits) from damage during transient voltage activity and enables line cards to comply
with various regulatory requirements including GR 1089, ITU K.20, K.21 and K.45,
IEC 60950, UL 60950, and TIA-968-A (formerly known as FCC Part 68).
For details of specific design criteria, see Figure 6.40 through Figure 6.43 in Section 6,
“Reference Designs” of this Telecom Design Guide.
* “L” in part number indicates RoHS compliance. For non-RoHS compliant device, delete “L” from part number.
For surge ratings, see table below.
General Notes:
• All measurements are made at an ambient temperature of 25 °C. IPP applies to -40 °C through +85 °C temperature range.
• IPP is a repetitive surge rating and is guaranteed for the life of the product.
• VDRM is measured at IDRM.
• VS and VF are measured at 100 V/µs.
• Special voltage (VS and VDRM) and holding current (IH) requirements are available upon request.
• Parallel capacitive loads may affect electrical parameters.
• Compliance with GR 1089 or UL 60950 power fault tests may require special design considerations. Contact the factory for further
information.
* Current waveform in µs
** Voltage waveform in µs
Electrical Parameters
Part
Number *
VDRM
Volts
VS
Volts VT
Volts
VF
Volts
IDRM
µAmps
IS
mAmps
IT
Amps
IH
mAmpsPins 1-2, 3-2
P0641A_2L 58 77 4 5 5 800 2.2 120
P0721A_2L 65 88 455800 2.2 120
P0901A_2L 75 98 4 5 5 800 2.2 120
P1101A_2L 95 130 455800 2.2 120
P1301A_2L 120 160 4 5 5 800 2.2 120
P1701A_2L 160 200 455800 2.2 120
Surge Ratings in Amps
Series
IPP
ITSM
50 / 60 Hz di/dt
0.2x310 *
0.5x700 **
2x10 *
2x10 **
8x20 *
1.2x50 **
10x160 *
10x160 **
10x560 *
10x560 **
5x320 *
9x720 **
10x360 *
10x360 **
10x1000 *
10x1000 **
5x310 *
10x700 **
Amps Amps Amps Amps Amps Amps Amps Amps Amps Amps Amps/µs
A 20 150 150 90 50 75 75 45 75 20 500
C50 500 400 200 150 200 175 100 200 50 500
¨
1
3
2
(T)
(G)
(R)
Two-chip SLIC Protector Modified TO-220
Telecom Design Guide • © 2006 Littelfuse 3 - 69 www.littelfuse.com
SIDACtor Devices
Note: Off-state capacitance (CO) is measured at 1 MHz with a 2 V bias.
Thermal Considerations
Package Symbol Parameter Value Unit
Modified
TO-220
TJOperating Junction Temperature Range -40 to +150 °C
TSStorage Temperature Range -65 to +150 °C
RθJA Thermal Resistance: Junction to Ambient 50 °C/W
Capacitance Values
Part Number
pF
pF
Pin 1-2 / 3-2 (4-5 / 6-5)
Tip-Ground, Ring-Ground
MIN MAX MIN MAX
P0641AA2L 40 200 20 105
P0641AC2L 40 200 20 105
P0721AA2L 35 190 20 105
P0721AC2L 35 190 20 105
P0901AA2L 30 180 20 105
P0901AC2L 30 180 20 105
P1101AA2L 25 160 15 105
P1101AC2L 25 160 15 105
P1301AA2L 25 160 15 105
P1301AC2L 25 160 15 105
P1701AA2L 25 125 15 105
P1701AC2L 25 125 15 105
PIN 1
PIN 2
PIN 3
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Two-chip SLIC Protector Modified TO-220
IH
IDRM
VDRM VT
+V
+I
VS
IS
IT
VF
-V
-I
V-I Characteristics
50
100
0
t
r
t
d
0
Peak
Value
Half Value
t – Time (µs)
I
PP
– Peak Pulse Current – %I
PP
t
r
= rise time to peak value
t
d
= decay time to half value
Waveform = t
r
x t
d
tr x td Pulse Waveform
-8
-40 -20 0 20 40 60 80 100 120 140 160
-6
-4
0
2
4
6
8
10
12
14
Junction Temperature (T
J
) – ˚C
Percent of V
S
Change – %
25 ˚C
Normalized VS Change versus Junction Temperature
0.4
-40 -20 0 20 40 60 80 100 120 140 160
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
Case Temperature (TC) – ˚C
Ratio of
IH
IH (TC = 25 ˚C)
25 ˚C
Normalized DC Holding Current versus Case Temperature
