Semiconductor Components Industries, LLC, 2002
September, 2002 – Rev. 2 1Publication Order Number:
SRDA05–4R2/D
SRDA05-4R2
Low Capacitance Surface
Mount TVS for High-Speed
Data Interfaces
The SRDA05–4 transient voltage suppressor is designed to protect
equipment attached to high speed communication lines from ESD,
EFT, and lighting.
Features:
•SO–8 Package
•Peak Power – 500 Watts 8 x 20 S
•ESD Rating:
IEC 61000–4–2 (ESD) 15 kV (air) 8 kV (contact)
IEC 61000–4–4 (EFT) 40 A (5/50 ns)
IEC 61000–4–5 (lighting) 23 (8/20 s)
•UL Flammability Rating of 94V–0
Typical Applications:
•High Speed Communication Line Protection
MAXIMUM RATINGS
Rating Symbol Value Unit
Peak Power Dissipation
8 x 20 S @ TA = 25°C (Note 1) Ppk 500 W
Junction and Storage
Temperature Range TJ, Tstg –55 to
+150 °C
Lead Solder Temperature –
Maximum 10 Seconds Duration TL260 °C
1. Non–repetitive current pulse 8 x 20 S exponential decay waveform
SO–8 LOW CAPACITANCE
VOLTAGE SUPPRESSOR
500 WATTS PEAK POWER
6 VOLTS
SRDA5= Device Code
L = Location Code
Y = Year
WW = Work Week
MARKING DIAGRAM
Device Package Shipping
ORDERING INFORMATION
SRDA05–4R2 SO–8 2500/Tape & Reel
SRDA5
LYWW
SO–8
CASE 751
PLASTIC
1
8
PIN CONFIGURATION
AND SCHEMATIC
I/O 1 1
REF 1 2
REF 1 3
I/O 2 4
8 REF 2
7 I/O 4
6 I/O 3
5 REF 2
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SRDA05–4R2
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2
ELECTRICAL CHARACTERISTICS
Characteristic Symbol Min Typ Max Unit
Reverse Breakdown Voltage @ It = 1.0 mA VBR 6.0 – – V
Reverse Leakage Current @ VRWN = 5.0 Volts IRN/A – 10 A
Maximum Clamping Voltage @ IPP = 1.0 A, 8 x 20 S VCN/A – 9.8 V
Maximum Clamping Voltage @ IPP = 10 A, 8 x 20 S VCN/A – 12 V
Between I/O Pins and Ground @ VR = 0 Volts, 1.0 MHz Capacitance – 10 15 pF
Between I/O Pins @ VR = 0 Volts, 1.0 MHz Capacitance – 5 8 pF
ELECTRICAL CHARACTERISTICS
(TA = 25°C unless otherwise noted)
UNIDIRECTIONAL (Circuit tied to Pins 1 and 3 or 2 and 3)
Symbol Parameter
IPP Maximum Reverse Peak Pulse Current
VCClamping Voltage @ IPP
VRWM Working Peak Reverse Voltage
IRMaximum Reverse Leakage Current @ VRWM
VBR Breakdown Voltage @ IT
ITTest Current
VBR Maximum Temperature Coefficient of VBR
IFForward Current
VFForward Voltage @ IF
ZZT Maximum Zener Impedance @ IZT
IZK Reverse Current
ZZK Maximum Zener Impedance @ IZK
Uni–Directional TVS
IPP
IF
V
I
IR
IT
VRWM
VCVBR VF
SRDA05–4R2
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3
TYPICAL CHARACTERISTICS
–100 0
9
Figure 1. Reverse Breakdown versus
Temperature
–50 T, TEMPERATURE (°C)
100 200
4
1
0
Figure 2. Reverse Leakage versus
Temperature
VZ, REVERSE BREAKDOWN (V)
8
7
6
5
4
3
2
1
0–100 –50 50 100
T, TEMPERATURE (°C)
200
50 150
2
3
8
5
6
7
0 150
IR, REVERSE LEAKAGE (A)
Figure 3. 8 × 20 s Pulse Waveform
100
90
80
70
60
50
40
30
20
10
00204060
t, TIME (s)
% OF PEAK PULSE CURRENT
tP
tr
PULSE WIDTH (tP) IS DEFINED
AS THAT POINT WHERE THE
PEAK CURRENT DECAY = 8 s
PEAK VALUE IRSM @ 8 s
HALF VALUE IRSM/2 @ 20 s
80
Figure 4. Clamping Voltage versus Peak Pulse
Current
35
30
25
20
15
10
5
00204060
IPP, PEAK PULSE CURRENT (A)
80
VC, CLAMPING VOLTAGE (V)
10 30 50 70 90
SRDA05–4R2
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4
500 Watts Peak Power
Transient Voltage Suppressor – Surface Mount
SO–8
CASE 751–07
ISSUE AA
SEATING
PLANE
1
4
58
N
J
X 45
K
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: MILLIMETER.
3. DIMENSION A AND B DO NOT INCLUDE MOLD
PROTRUSION.
4. MAXIMUM MOLD PROTRUSION 0.15 (0.006) PER
SIDE.
5. DIMENSION D DOES NOT INCLUDE DAMBAR
PROTRUSION. ALLOWABLE DAMBAR
PROTRUSION SHALL BE 0.127 (0.005) TOTAL IN
EXCESS OF THE D DIMENSION AT MAXIMUM
MATERIAL CONDITION.
6. 751-01 THRU 751-06 ARE OBSOLETE. NEW
STANDAARD IS 751-07
A
BS
D
H
C
0.10 (0.004)
DIM
A
MIN MAX MIN MAX
INCHES
4.80 5.00 0.189 0.197
MILLIMETERS
B3.80 4.00 0.150 0.157
C1.35 1.75 0.053 0.069
D0.33 0.51 0.013 0.020
G1.27 BSC 0.050 BSC
H0.10 0.25 0.004 0.010
J0.19 0.25 0.007 0.010
K0.40 1.27 0.016 0.050
M0 8 0 8
N0.25 0.50 0.010 0.020
S5.80 6.20 0.228 0.244
–X–
–Y–
G
M
Y
M
0.25 (0.010)
–Z–
Y
M
0.25 (0.010) Z SXS
M
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SRDA05–4R2/D
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