Schematic & PIN Configuration …

SMS3.3.TCT

TVS DIODE 3.3VWM 8.7VC SOT23-6

SMS3.3.TCT is a 3.3V 4-channel TVS diode array in SOT23-6L package, featuring EPD technology with low leakage and clamping voltage for ESD and latch-up protection.Checked against the datasheet

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Technical parameters

Key specs

Reverse standoff voltage3.3 V

Breakdown voltage3.5 VMin 3.5 V (I_PT = 2μA)

Clamping voltage4.5 VMax · Max 4.5 V (I_PP = 1A，tp = 8/20μs)，Max 6.8 V (I_PP = 5A，tp = 8/20μs)，Max 9.5 V (I_PP = 10A，tp = 8/20μs)

Peak pulse power200 W

PolarityUnidirectional

Datasheet-verified parameters

18 items

Parameter	Value and test conditions	Source
Reverse Stand-Off Voltage	Max 3.3 V
Punch-Through Voltage	Min 3.5 V (I_PT = 2μA)
Clamping Voltage	Max 4.5 V (I_PP = 1A, tp = 8/20μs); Max 6.8 V (I_PP = 5A, tp = 8/20μs); Max 9.5 V (I_PP = 10A, tp = 8/20μs)
Peak Pulse Power	100 Watts (tp = 8/20μs)
Polarity	Unidirectional (Four Unidirectional Lines)
Package	SOT23-6L
Operating Temperature	-55 to +125 °C
RoHS	Compliant
Reverse Leakage Current	Max 0.5 μA (V_RWM = 3.3V, T=25°C)
Junction Capacitance	Max 40 pF (V_R = 0V, f = 1MHz)
Peak Pulse Current	10 A (tp = 8/20μs)
ESD Voltage	30 kV (HBM Waveform per IEC 61000-4-2)
Storage Temperature	-55 to +150 °C
Steering Diode Forward Voltage	Max 1.7 V (I_PP = 1A, tp = 8/20μs, Gnd to Any I/O)
Snap-Back Voltage	Min 2.8 V (I_SB = 50mA)
Lead Finish	Matte tin (Pb free)
Packaging	Tape and Reel per EIA 481
Molding compound flammability rating	UL 94V-0

All parameters (19)ExpandCollapse

Power
Current - Peak Pulse (10/1000µs)	12A (8/20µs)
Power Line Protection	No
Power - Peak Pulse	200W
Unidirectional Channels	4
Voltage - Breakdown (Min)	3.5V
Voltage - Clamping (Max) @ Ipp	8.7V
Voltage - Reverse Standoff (Typ)	3.3V (Max)
AC and DC characteristics
Capacitance @ Frequency	35pF @ 1MHz
Environment and package
Mounting Type	Surface Mount
Operating Temperature	-55°C ~ 125°C (TJ)
Package	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®
Package / Case	SOT-23-6
Supplier Device Package	SOT-23-6
Other
Applications	General Purpose
Base Product Number	SMS3.3
Mfr	Semtech Corporation
Product Status	Active
Series	SMS
Type	Zener

Pinout and package

Pin	Name	Function
1	I/O	1 (Data Input/Output 1)
2	I/O	2 (Data Input/Output 2)
3	I/O	3 (Data Input/Output 3)
4	I/O	4 (Data Input/Output 4)
5	GND	(Ground)
6	NC	(No Connection)

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DatasheetDatasheet · 162.5 KB · 2026-10-29

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