TVS Diode Arrays
(SPA
®
Diodes)
Diodes)
Lightning Surge Protection - SP2502L Series
SP2502L Series 3.3V 75A Diode Array
Description
RoHS
Pb
GREEN
The SP2502L provides overvoltage protection for
applications such as 10/100/1000 Base-T Ethernet and T3/
E3 interfaces. This device has a low capacitance of only
5pF making it suitable for PHY side Ethernet protection
and the capability to protect against both longitudinal and
differential transients. Furthermore, the SP2502L is rated
up to 100A (tp=2/10µs) making it suitable for line side
protection as well against lightning transients as defined
by GR-1089 (intra-building), ITU, YD/T, etc. The application
schematic provides the connection information for a PHY
side protection scheme of a single differential pair.
Pinout
1
8
Features
• Lightning protection, IEC
61000-4-5, 75A (8/20µs)
• Low clamping voltage
• Low insertion loss, log-
linear capacitance
• Combined longitudinal
and metallic protection
• Clamping speed of
nanoseconds
• SOIC-8 surface mount
package (JEDEC MS-012)
• UL 94V-0 epoxy molding
• RoHS compliant and
Lead-free
2
7
3
6
4
5
SOIC-8 (Top View)
Note: Pinout diagrams above shown as device footprint on circuit board.
Functional Block Diagram
Applications
• T1/E1 Line cards
• T3/E3 and DS3 Interfaces
• STS-1 Interfaces
Line in
Pin 1 and 8
Line out
• 10/100/1000 BaseT
Ethernet
Application Example
Pin 2, 3, 6,
and 7
1
TeleLink (0461 1.25)
2
3
4
8
7
6
5
SP2502L
to chipset
(Ethernet PHY,
T3/E3 PHY, etc.)
Line in
Line out
Pin 4 and 5
Additional Information
Datasheet
Resources
Samples
The schematic shows protection for a single differential
pair as part of a larger high-speed data interface such as
Ethernet. The SP2502L provides both metallic (differential)
and longitudinal (common mode) protection from lightning
induced surge events as specified by regulatory standards
such as Telcordia’s GR-1089 CORE and ITU K.20 and 21.
The SP2502L protects against both positive and negative
induced surge events while the TeleLink fuse provides
overcurrent protection for the long term 50/60 Hz power
fault events.
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)
Diodes)
Lightning Surge Protection - SP2502L Series
Absolute Maximum Ratings
Parameter
Peak Pulse Current (8/20µs)
Peak Pulse Power (8/20µs)
IEC 61000-4-2, Direct Discharge, (Level 4)
IEC 61000-4-2, Air Discharge, (Level 4)
Telcordia GR 1089 (Intra-Building) (2/10µs)
ITU K.20 (5/310µs)
Rating
75
2100
30
30
100
20
Units
A
W
kV
kV
A
A
Thermal Information
Parameter
SOIC Package
Operating Temperature Range
Storage Temperature Range
Maximum Junction Temperature
Maximum Lead Temperature (Soldering
20-40s) (SOIC - Lead Tips Only)
Rating
170
–40 to 125
–55 to 150
150
260
Units
°C/W
°C
°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
= 25°C)
Parameter
Reverse Stand-Off Voltage
Reverse Breakdown Voltage
Snap Back Voltage
Reverse Leakage Current
Clamping Voltage, Line-Ground
1
Clamping Voltage, Line-Ground
1
Clamping Voltage, Line-Ground
1
Dynamic Resistance, Line-Ground
1
Clamping Voltage, Line-Line
1
Clamping Voltage, Line-Line
1
Clamping Voltage, Line-Line
1
Dynamic Resistance, Line-Line
1
Symbol
V
RWM
V
BR
V
SB
I
R
V
C
V
C
V
C
R
DYN
V
C
V
C
V
C
R
DYN
C
j
Test Conditions
I
T
≤1µA
I
T
= 2µA
I
T
= 50mA
V
RWM
= 3.3V
I
PP
= 40A, t
p
=8/20 µs
I
PP
= 75A, t
p
=8/20 µs
I
PP
= 100A, t
p
=2/10 µs
( V
C2
-V
C1
)/(I
PP2
-I
PP1
)
I
PP
= 40A, t
p
=8/20 µs
I
PP
= 75A, t
p
=8/20 µs
I
PP
= 100A, t
p
=2/10 µs
( V
C2
-V
C1
)/(I
PP2
-I
PP1
)
Line to Ground
V
R
=0V, f= 1MHz
Line to Line, V
R
=0V, f= 1MHz
1
Min
-
3.3
3.3
-
-
-
Typ
-
-
-
-
-
-
Max
3.3
-
-
1
14
20
20
Units
V
V
V
µA
V
V
V
W
V
V
V
W
pF
pF
-
-
-
0.2
-
-
-
20
30
30
-
-
-
0.3
5
2.5
-
8
5
Junction Capacitance
1
Parameter is guaranteed by design and/or device characterization.
© 2017 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 02/23/17
SP4040
TVS Diode Arrays
(SPA
®
Diodes)
Diodes)
Lightning Surge Protection - SP2502L Series
Pulse Waveform
110%
100%
90%
80%
Clamping Voltage vs. I
PP
30
25
Clamp Voltage-V
C
(V)
Line-Line
20
15
10
5
0
0
10
20
30
40
50
60
70
Percent of I
PP
70%
60%
50%
40%
30%
20%
10%
0%
0.0
5.0
10.0
15.0
20.0
25.0
30.0
Line-Gound
Peak Pulse Current -I
PP
(A)
Time ( s)
Capacitance vs. Reverse Bias at 1MHz
6.0
Current Derating Curve
120
5.0
Line-Gound
Percentage of Rated Current (% I
P
)
100
4.0
Capacitance (pF)
80
3.0
60
2.0
Line-Line
40
1.0
20
0.0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
0
0
10
20 30
40
50
60
70 80
90
100 110 120 130 140 150
Bias Voltage (V)
Ambient Temperature (ºC)
Non-Repetitive Peak Pulse Power vs. Pulse Time
10
Peak Pulse Power (kW)
1
0.1
1
Peak Pulse Dura on
- t
P
(µs)
10
100
1000
© 2017 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 02/23/17
TVS Diode Arrays
(SPA
®
Diodes)
Diodes)
Lightning Surge Protection - SP2502L Series
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)
Preheat
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
Ramp-do
Ramp-down
T
S(min)
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
Part Marking System
Product Characteristics
Lead Plating
Lead Material
Matte Tin
Copper Alloy
0.0004 inches (0.102mm)
Silicon
Molded Epoxy
UL 94 V-0
F
L
SP2502
Lead Coplanarity
Marking
Date code
Pin1
Substitute Material
Body Material
Flammability
Notes :
1. All dimensions are in millimeters
2. Dimensions include solder plating.
CYYWW
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.
Part Numbering System
Ordering Information
Part Number
Package
SOIC-8
Marking
SP2502
Min. Order Qty.
2500
SP2502L B T G
TVS Diode Arrays
(SPA
®
Diodes)
Series
G= Green
T= Tape & Reel
Package
B = SOIC-8
SP2502LBTG
© 2017 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 02/23/17
SP4040
t
L
TVS Diode Arrays
(SPA
®
Diodes)
Diodes)
Lightning Surge Protection - SP2502L Series
Package Dimensions — Mechanical Drawings and Recommended Solder Pad Outline
Package
Pins
JEDEC
Millimetres
Min
A
Recommended
Soldering Pad Outline
(Reference Only)
SOIC
8
MS-012
Inches
Min
0.053
0.004
0.050
0.012
0.007
0.189
0.228
0.150
0.016
Max
0.069
0.010
0.065
0.020
0.010
0.197
Max
1.75
0.25
1.65
0.51
0.25
5.00
F
L
o
1.35
0.10
1.25
0.31
0.17
4.80
5.80
3.80
0.40
A1
A2
B
c
D
E
E1
e
L
6.20
4.00
0.244
0.157
1.27 BSC
0.050 BSC
1.27
0.050
Embossed Carrier Tape & Reel Specification — SOIC Package
User Feeding Direction
Millimetres
Min
E
F
P2
D
D1
P0
10P0
W
P
A0
B0
K0
t
1.65
5.4
1.95
1.5
3.9
11.9
7
.9
6.3
5.1
2
Max
1.85
5.6
2.05
1.6
4.1
12.1
8.1
6.5
5.3
2.2
Inches
Min
0.065
0.213
0.077
0.059
0.154
0.468
0.311
0.248
0.2
0.079
Max
0.073
0.22
0.081
0.063
0.161
0.476
0.319
0.256
0.209
0.087
Pin 1 Location
1.50 Min
40.0 ± 0.20
0.059 Min
1.574 ± 0.008
0.30 ± 0.05
0.012 ± 0.002
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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