5.0SMDJ12A

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5.0SMDJ12A

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TVS DIODE 12VWM 19.9VC

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Spezifikationen

Attribut Wert
Supplier Meritek
Package Tape & Reel (TR)
Series 5.0SMDJ
ProductStatus Active
Type Zener
UnidirectionalChannels 1
Voltage-ReverseStandoff(Typ) 12V
Voltage-Breakdown(Min) 13.3V
Voltage-Clamping(Max)@Ipp 19.9V
Current-PeakPulse(10/1000µs) 252A
Power-PeakPulse 5000W (5kW)
Applications General Purpose
OperatingTemperature -65°C ~ 150°C
MountingType Surface Mount
Package/Case DO-214AB (SMC)

Übersicht

Description

5.0SMDJ12A is a high‑power TVS (transient-voltage-suppressing) diode in the SMDJ package used to protect circuits from surge/ESD on a 12‑V rail.
- Meaning: 5.0 ≈ 5 kW peak pulse power (8/20 µs); SMDJ = surface-mount TVS; 12 = nominal stand‑off voltage ~12 V; A usually denotes unidirectional version.
- Function: clamps overvoltage to a safe level, protecting power rails and sensitive electronics.
- Connection: placed across the line and ground (for unidirectional devices, cathode to the positive rail, anode to ground).
- Key specs to check: Vrwm (standoff), Vbr (breakdown), Vclamp (clamping), IPP/peak pulse current, package (DO-214AB), temp range.
- Typical use cases: automotive 12 V systems, telecom power lines, USB/12 V DC rails, consumer electronics.
- Note: exact voltages and currents vary by manufacturer and lot; consult the specific datasheet for precise values and tolerances.

Features

5.0SMDJ12A is a transient-voltage-suppressor (TVS) diode in the SMDJ package for 12V systems. Key features:
- Unidirectional TVS for clamping positive surges on 12V rails
- Peak pulse power up to about 1500W (8/20 µs)
- Stand-off (working) voltage ~12V; low leakage at rated voltage
- Breakdown voltage typically around 13–15V; clamping voltage ~20–22V (8/20 µs)
- Fast response time (sub-nanosecond to nanosecond range)
- Package: surface-mount DO-214AB (SMDJ) for easy reflow soldering
- Wide operating temperature: -55°C to +150°C
- RoHS compliant; suitable for automotive/industrial environments
- Reputable surge protection device with good reliability and ruggedness
Note: exact voltage ranges may vary by lot; consult the manufacturer datasheet for precise VBR, VCL, and leakage specs.

Pinout

- Pin count: 2 pins (anode and cathode).
- Function: Transient Voltage Suppressor (TVS) diode in an SMDJ package, used for surge/ESD protection to clamp overvoltage on 12V power rails (unidirectional variant).

Manufacturer

- Manufacturer: Littelfuse, Inc.
- What kind of company: A global manufacturer of circuit protection and power control components, including fuses and TVS diodes; headquartered in Chicago, USA, with operations worldwide (publicly traded on NASDAQ as LFS).

Application

5.0SMDJ12A is a 12 V rated TVS diode in the SMDJ package used to clamp transients on 12 V lines. Typical application areas include:
- Automotive 12 V systems (load-dump and harness surges)
- 12 V DC rails in consumer electronics, industrial controls, telecom equipment
- DC-DC converters, power supplies, inverters, battery management, solar charge controllers
- Surge protection on 12 V input/power lines and battery connections
- ESD/surge protection for 12 V signal lines in infotainment and telematics systems

Package

DO-214AB (SMC) surface-mount package (TVS diode, SMDJ series).

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