TVS Diode Array (SPA® Diodes)
Lightning Surge Protection- SP4021 Series
SP4021 Series 2.5pF, 25A Discrete TVS Diode
RoHS
Pb GREEN
Description
The SP4021 components integrate low capacitance
steering diodes with one or two avalanche breakdown
diodes for unidirectional or bidirectional protection,
respectively, to protect against ESD and lightning induced
surge events. These components can safely absorb up to
25A per IEC 61000-4-5 (tp=8/20μs) without performance
degradation and a minimum ±30kV ESD per IEC 610004-2 International Standard. The low loading capacitance
and high surge capability make it ideal for protecting
telecommunication ports such as Ethernet and other high
speed data interfaces.
Pinout
Features
• ESD, IEC 61000-4-2,
±30kV contact, ±30kV air
• EFT, IEC 61000-4-4, 40A
(5/50ns)
1
• Lightning, 25A (8/20 as
defined in IEC 61000-4-5
2nd edition)
• Low capacitance of 2.5pF
(@ VR=0V)
Bidirectional configuration
• Small SOD323 package
fits 0805 footprints
• Moisture Sensitivity Level
(MSL-1)
• AEC-Q101 Qualified
• Halogen free, Lead free,
and RoHS compliant
• Low leakage current
• Unidirectional and
2
Functional Block Diagram
1
Applications
1
•10/100/1000 Ethernet
•Computers and Peripherals
•T1/E1/T3/E3
•Instrumentation
•USB 1.1/2.0
•Medical Equipment
•Power Ports
•USB 3.0 and 3.1
Additional Information
2
2
Unidirectional
Bidirectional
SP4021-01FTG
SP4021-01FTG-C
Datasheet
Resources
Samples
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.
© 2019 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 09/19/19
TVS Diode Array (SPA® Diodes)
Lightning Surge Protection- SP4021 Series
Absolute Maximum Ratings
Symbol
Parameter
Value
Units
IPP
Peak Current (tp=8/20μs)
25
A
PPk
Peak Pulse Power (tp=8/20μs)
750
W
TOP
Operating Temperature
-40 to 125
°C
TSTOR
Storage Temperature
-55 to 150
°C
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the component. This is a stress only rating and operation of the component at these or any other conditions above those
indicated in the operational sections of this specification is not implied.
Electrical Characteristics (TOP=25ºC)
Parameter
Symbol
Test Conditions
Min
6.3
Breakdown Voltage
Typ
Max
Units
VBR
IR=2μA
Reverse Standoff Voltage
VRWM
IR=1μA
5.0
V
Reverse Leakage Current
ILEAK
VR=5.0V
0.5
μA
IPP=1A, tp=8/20µs, Fwd
9.3
V
VC
IPP=10A, tp=8/20µs, Fwd
14.0
V
Clamp Voltage1
Dynamic Resistance2
RDYN
ESD Withstand Voltage1
VESD
IPP=24A, tP=8/20μs, Fwd
19.6
V
TLP, tP=100ns
0.35
Ω
IEC 61000-4-2 (Contact Discharge)
±30
IEC 61000-4-2 (Air Discharge)
±30
CD
Diode Capacitance1
V
Reverse Bias=0V, f=1MHz
kV
kV
2.5
pF
Note:
1. Parameter is guaranteed by design and/or component characterization.
2. Transmission Line Pulse (TLP) with 100ns width and 200ps rise time.
Normalized Capacitance vs. Bias Voltage
3.5
Normalized Capacitance
3.0
SP4021-01FTG
SP4021-01FTG-C
2.5
2.0
1.5
1.0
0.5
0.0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
Bias Voltage (V)
© 2019 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 09/19/19
TVS Diode Array (SPA® Diodes)
Lightning Surge Protection- SP4021 Series
Positive Transmission Line Pulsing (TLP) Plot
Negative Transmission Line Pulsing (TLP) Plot
20
0
18
-2
-4
14
-6
TLP Current (A)
TLP Current (A)
16
12
10
8
6
-8
-10
-12
-14
4
-16
2
-18
0
0
2
4
6
8
10
12
14
16
18
-20
20
-20
-18
-16
-14
TLP Voltage (V)
-12
-10
-8
-6
-4
-2
0
TLP Voltage (V)
Pulse Waveform
Clamping Voltage vs. IPP
110%
24.0
100%
Clamp Voltage (VC)
20.0
90%
80%
Percent of IPP
16.0
12.0
8.0
70%
60%
50%
40%
30%
4.0
20%
10%
0.0
1.0
5.0
10.0
15.0
20.0
0%
25.0
0.0
5.0
10.0
15.0
Peak Pulse Current-IPP (A)
20.0
25.0
30.0
Time (μs)
Soldering Parameters
Pre Heat
Pb – Free assembly
- Temperature Min (Ts(min))
150°C
- Temperature Max (Ts(max))
200°C
- Time (min to max) (ts)
60 – 180 secs
Average ramp up rate (Liquidus) Temp (TL) to peak 3°C/second max
TS(max) to TL - Ramp-up Rate
Reflow
3°C/second max
- Temperature (TL) (Liquidus)
217°C
- Temperature (tL)
60 – 150 seconds
Peak Temperature (TP)
260+0/-5 °C
Time within 5°C of actual peak Temperature (tp)
20 – 40 seconds
Ramp-down Rate
6°C/second max
Time 25°C to peak Temperature (TP)
8 minutes Max.
Do not exceed
260°C
tP
TP
Critical Zone
TL to TP
Ramp-up
Temperature
Reflow Condition
TL
T S(max)
tL
Ramp-dow
Ramp-down
Preheat
T S(min)
tS
25
time to peak temperature
Time
Product Characteristics
Lead Plating
Matte Tin
Lead Material
Alloy 42
Lead Coplanarity
0.0004 inches (0.102mm)
Substrate Material
Silicon
Body Material
Molded Compound
UL Recognized compound meeting
flammability rating V-0
Flammability
© 2019 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 09/19/19
TVS Diode Array (SPA® Diodes)
Lightning Surge Protection- SP4021 Series
Part Numbering System
Part Marking System
SP 4021
SP4021-01FTG
05
1
2
5C
01 F T G C
Blank= Unidirectional
C= Bidirectional
G= Green
TVS Diode Arrays
(SPA® Diodes )
Series
Number of
Channels
SP4021-01FTG-C
1
–
T= Tape & Reel
Package
F: SOD323
Ordering Information
2
Part Number
Package
Min. Order Qty.
SP4021-01FTG
SOD323
3000
SP4021-01FTG-C
SOD323
3000
Package Dimensions -SOD323
E
D
b
L1
L
Recommended Solder Pad
1.79
0.45
0.49
c
0.2
Symbol
A
E1
L
SOD323
A2
A1
Millimeters
Inches
Min
Max
Min
Max
A
0.8
1.00
0.031
0.039
A1
0.00
0.10
0.000
0.004
A2
0.80
0.90
0.031
0.035
b
0.25
0.35
0.010
0.014
c
0.08
0.15
0.003
0.006
D
1.20
1.40
0.047
0.055
E
1.60
1.80
0.063
0.071
E1
2.50
2.70
0.098
0.106
L1
0.25
0.40
0.010
0.016
1.14
2.28
2.77
Unit: mm
Embossed Carrier Tape & Reel Specification — SOD323
Symbol
Component Orientation in Tape
,Ref.
,Ref.
,Ref.
Pin1
8mm TAPE AND REEL
Millimeters
A0
1.46+/-0.10
B0
2.90+/-0.10
W
8.0+0.3/-0.10
D0
1.50+0.10
D1
0.45min/1.15max
E1
1.75+/-0.10
E2
-
F
3.50+/-0.10
P0
4.00+/-0.10
P
4.00+/-0.10
P1
2.00+/-0.05
K0
1.25+/-0.10
T
0.254+/-0.02
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 http://www.littelfuse.com/disclaimer-electronics.
© 2019 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 09/19/19
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