TVS Diode Arrays
(SPA
®
Diodes)
Lightning Surge Protection- SR05 Series
SR05 Series 5V 25A Diode Array
Description
RoHS
Pb
GREEN
The SR05 consists of four, low capacitance steering diodes
and a low voltage TVS diode that provide protection against
ESD and lightning surge events. Each channel or I/O pin
can safely absorb up to 25A (tp=8/20μs) and repetitive ESD
strikes above the maximum level (Level 4) specified in the
IEC 61000-4-2 international standard without performance
degradation.
The low loading capacitance makes it ideal for protecting
high-speed telecommunication data lines.
Pinout
SOT143
Vcc
Features
• ESD, IEC61000-4-2 ,
±30kV contact discharge,
±30kV air discharge
• EFT, IEC61000-4-4, 80A
(t
p
=5/50ns)
• Lightning protection,
IEC61000-4-5, 25A
(t
p
=8/20µs)
• Low capacitance of 6.0pF
(TYP) per I/O
• Low clamp voltage
• Small SOT143 (JEDEC TO-
253) packaging
• Moisture Sensitivity Level
(MSL-1)
GND
I/O 1
I/O 2
Applications
Functional Block Diagram
PIN 4
• T1/E1 IC/Secondary
Protection
• Ethernet 10BaseT
• WAN/LAN Equipment
• ISDN S/T Interface
• Video Lines
• Microcontroller Input
Protection
PIN 2
PIN 3
Application Example
I/O
I/O
V
CC
GND (PIN 1)
1
4
Additional Information
2
3
Datasheet
Resources
Samples
The SR05 integrates a TVS Diode between the Vcc and Gnd
pins. This allows the array to protect the power supply
against ESD and lighting surges when these pins are both
connected in the application.
Life Support Note:
Not Intended for Use in Life Support or Life Saving Applications
The products shown herein are not designed for use in life sustaining or life
saving applications unless otherwise expressly indicated.
© 2017 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 02/23/17
TVS Diode Arrays
(SPA
®
Diodes)
Lightning Surge Protection- SR05 Series
Absolute Maximum Ratings
Symbol
I
PP
P
Pk
T
OP
T
STOR
Parameter
Peak Current (t
p
=8/20μs)
Peak Pulse Power (t
p
=8/20μs)
Operating Temperature
Storage Temperature
Value
25.0
450
–40 to 125
–55 to 150
Units
A
W
°C
°C
Thermal Information
Parameter
Storage Temperature Range
Maximum Junction Temperature
Maximum Lead Temperature
(Soldering 20-40s)
Rating
–55 to 150
150
260
Units
°C
°C
°C
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause
permanent damage to the device. This is a stress only rating and operation of the device
at these or any other conditions above those indicated in the operational sections of this
specification is not implied.
Electrical Characteristics
(T
OP
=25ºC)
Parameter
Reverse Stand-Off Voltage
Reverse Leakage Current
Reverse Breakdown Voltage
Clamping Voltage, Line-Ground
1
Clamping Voltage, Line-Ground
1
Clamping Voltage, Line-Ground
1
Dynamic Resistance, Line-Ground
1
ESD Withstand Voltage
1
Diode Capacitance
1
Symbol
V
RWM
I
R
V
BR
V
C
V
C
V
C
R
DYN
V
ESD
C
I/O-I/O
C
I/O-GND
V
R
= 5V, I/O to GND
I
t
= 1mA
I
PP
= 1A, t
p
=8/20 µs
I
PP
= 10A, t
p
=8/20 µs
I
PP
= 25A, t
p
=8/20 µs
( V
C2
-V
C1
)/(I
PP2
-I
PP1
)
IEC61000-4-2 (Contact Discharge)
IEC61000-4-2 (Air Discharge)
Reverse Bias=0V
Reverse Bias=0V
Test Conditions
Min
-
-
6.0
-
-
-
-
±30
±30
-
-
Typ
-
-
-
-
-
-
0.3
-
3.0
6.0
Max
5.0
5.0
-
9.8
12.0
18.0
-
-
-
10.0
Units
V
µA
V
V
V
V
W
kV
kV
pF
pF
Note: 1. Parameter is guaranteed by design and/or device characterization.
Capacitance vs. Reverse Bias
10.0
9.0
8.0
8/20μs Pulse Waveform
110%
100%
90%
80%
Capacitance (pF)
7.0
6.0
5.0
4.0
3.0
2.0
1.0
0.0
0.0
1.0
2.0
3.0
4.0
Vcc=3.3V
Percent of I
PP
Vcc Open
70%
60%
50%
40%
30%
20%
10%
0%
0.0
5.0
10.0
15.0
20.0
25.0
30.0
Vcc=5V
5.0
Reverse Bias (V)
Time ( s)
© 2017 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 02/23/17
TVS Diode Arrays
(SPA
®
Diodes)
Lightning Surge Protection- SR05 Series
Clamping Voltage vs. I
PP
Product Characteristics
Lead Plating
Matte Tin
Copper Alloy
0.0004 inches (0.102mm)
Silicon
Molded Epoxy
UL 94 V-0
20
Lead Material
Lead Coplanarity
Substitute Material
Body Material
Flammability
Clamp Voltage (V
C
)
15
10
5
Notes :
1. All dimensions are in millimeters
2. Dimensions include solder plating.
3. Dimensions are exclusive of mold flash & metal burr.
4. Blo is facing up for mold and facing down for trim/form, i.e. reverse trim/form.
5. Package surface matte finish VDI 11-13.
0
0
5
10
15
20
25
Peak Pulse Current-I
PP
(A)
Soldering Parameters
Reflow Condition
- Temperature Min (T
s(min)
)
Pre Heat
- Temperature Max (T
s(max)
)
- Time (min to max) (t
s
)
Average ramp up rate (Liquidus) Temp
(T
L
) to peak
T
S(max)
to T
L
- Ramp-up Rate
Reflow
- Temperature (T
L
) (Liquidus)
- Temperature (t
L
)
Pb – Free assembly
Temperature
T
P
T
L
T
S(max)
T
S(min)
Ramp-up
t
P
Critical Zone
T
L
to T
P
150°C
200°C
60 – 180 secs
3°C/second max
3°C/second max
217°C
60 – 150 seconds
260
+0/-5
°C
20 – 40 seconds
6°C/second max
8 minutes Max.
260°C
t
L
Ramp-do
Ramp-down
Preheat
t
S
time to peak temperature
25
Time
Peak Temperature (T
P
)
Time within 5°C of actual peak
Temperature (t
p
)
Ramp-down Rate
Time 25°C to peak Temperature (T
P
)
Do not exceed
Ordering Information
Part Number
SR05-02CTG
Package
SOT143
Marking
Min. Order Qty.
3000
SR05
Part Numbering System
Part Marking System
SR 05
–
02 C T G
G= Green
T= Tape & Reel
Series
Number of
Channels
SR05
Package
C: SOT143
© 2017 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 02/23/17
TVS Diode Arrays
(SPA
®
Diodes)
Lightning Surge Protection- SR05 Series
Package Dimensions—SOT143
Package
Pins
JEDEC
SOT143
4
TO-253
Inches
Min
Max
0.03
0.048
0.002
0.006
0.012
0.020
0.030
0.035
0.003
0.008
0.110
0.120
0.082
0.104
0.047
0.055
0.076 BSC
0.008 BSC
0.016
0.024
0.022 REF
e
4
3
E1
E
3
E1
E
e1
503B
1
2
Recommended Pad Layout
0.80 (.032")
1.00 (.040")
B
2
0.80 (.032")
1.00 (.040")
3.40 (.134") 2.20
(.087")
3.60 (.140")
(.055")
1.40
REF
MAX
D
A
3.40 (.134") 2.20
(.087")
3.60 (.140")
REF
1.90
(.075")
1.70
(.067")
BSC
b2
A
c
b
A1
1.00 (.040")
1.20 (.048")
0.80 (.032")
1.00 (.040")
b
A1
L
L1
Millimeters
Min
Max
A
0.8
1.22
1.40 (.055")
MAX
A1
0.05
0.15
1.90
(.075")
b
0.30
0.50
1.70
(.067")
b2
0.76
0.89
BSC
c
0.08
0.20
D
2.80
3.04
1.00 (.040") 0.80 (.032")
2.10
2.64
1.20 (.048")
E
1.00 (.040")
E1
1.20
1.40
e
1.92 BSC
e1
0.20 BSC
L
0.4
0.6
L1
0.550 REF
L
L1
Embossed Carrier Tape & Reel Specification—SOT143
Symbol
A
B
C
d
E
F
P0
P
P1
W
Millimeters
3.19±0.10
2.8±0.10
1.31±0.10
1.50±0.10
1.75±0.10
3.50±0.10
4.00±0.10
4.00±0.10
2.00±0.10
8.00±0.10
Pin 1
Notes :
1. All dimensions are in millimeters
User Feeding Direction
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.
© 2017 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 02/23/17
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