SMCJ170A

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SMCJ170A

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TVS DIODE 199VWM 275VC DO214AB

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Thông số kỹ thuật

thuộc tính Giá trị
Supplier Rectron USA
Package Tape & Reel (TR)
Series SMCJ
ProductStatus Active
Type Zener
UnidirectionalChannels 1
Voltage-ReverseStandoff(Typ) 199V
Voltage-Clamping(Max)@Ipp 275V
Power-PeakPulse 1500W (1.5kW)
Applications General Purpose
OperatingTemperature -55°C ~ 150°C (TJ)
MountingType Surface Mount
Package/Case DO-214AB, SMC

Tổng quan

Description

SMCJ170A is a high‑power transient-voltage-suppressor (TVS) diode in the SMC (DO‑214AB) package. It protects high‑voltage DC rails from fast transients by clamping voltage spikes to safe levels. The 170V rating indicates a working (stand‑off) voltage near 170 V, and the “A” suffix denotes the unidirectional variant. It offers about 600 W peak pulse power (10/1000 µs) with clamped voltage that depends on surge current. Typical applications include telecom and industrial power supplies, HV DC rails, and other high‑voltage electronics needing robust surge protection. For exact specs (V_RWM, V_BR, V_CL, I_pp, packaging, etc.), consult the manufacturer’s datasheet.

Features

SMCJ170A is a unidirectional transient voltage suppressor (TVS) diode in a DO-214AB (SMCJ) package. Key features:
- VRWM (standoff) = 170 V
- VBR (breakdown) ≈ 188–210 V
- Peak pulse power PPP ≈ 1500 W (8/20 μs)
- Very fast response time for transient suppression
- Low leakage in normal operation
- Operating range: -55°C to +125°C
- RoHS compliant
- Suitable for surge protection on 170 V lines, power supplies, telecom, and automotive applications

Pinout

- Pin count: 2 terminals (DO-214AB SMC package)
- Function: Transient Voltage Suppressor (TVS) diode used to clamp voltage spikes and protect circuits; rated for a stand-off voltage around 170 V (suitable for protecting 120 VAC mains applications).

Manufacturer

- Manufacturer: Littelfuse.
- What kind of company: A global electronics components company specializing in circuit protection (fuses, TVS diodes, ESD protection, etc.), as well as related semiconductors and protection solutions.

Application

SMCJ170A is a high-power, unidirectional TVS diode (SMC package) with ~170 V stand-off. Typical application areas:
- Transient surge/ESD protection for high-voltage DC rails (around 170 V)
- Protection of rectified mains inputs and high-voltage power supplies
- Surge protection for telecom/network equipment and data lines
- DC-link protection in solar inverters, motor drives, and industrial controls
- High-voltage signaling line protection in electronic equipment
- General transient suppression in high-voltage electronics

Package

SMCJ170A is a TVS diode in the SMC package (DO-214AB) – a surface-mount, two-lead package.

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