SMCJ170A

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SMCJ170A

TVS DIODE 199VWM 275VC DO214AB

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Specifications

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

Overview

Description

The SMCJ170A is a unidirectional surface‑mount transient voltage suppressor (TVS) diode in a DO-214AB (SMC) package. It protects high‑voltage DC lines from voltage transients and ESD by remaining non‑conductive up to its standoff level (~170 V) and then avalanching to clamp surges to a safe level. It can absorb high‑energy pulses (peak pulse power in the kilowatt class for brief durations). Typical applications include protecting power‑supply inputs, telecom and automotive/high‑voltage lines. The “A” suffix denotes unidirectional operation; for bidirectional use, a different SMCJ part is used. For design, choose a part with a standoff voltage at or above your maximum operating voltage, and ensure the supply and fuse can tolerate surge events. Always consult the vendor datasheet for exact V_R, V_BR, V_CL, IPP, and footprint recommendations.

Features

Here are the typical features of the SMCJ170A TVS diode:
- Type: Surface-mount transient voltage suppressor (TVS) diode in the SMCJ package.
- Stand-off voltage (VRWM): 170 V.
- Peak pulse power: ~1,500 W (10/1000 µs waveform).
- Fast transient protection: response time in the sub-nanosecond to nanosecond range.
- Clamping: clamps high-energy surges to protect downstream circuitry; designed for IEC 61000-4-5/4-2 type transients.
- Leakage: very low leakage current under normal operation.
- Operating temperature: wide range, typically -55°C to +150°C.
- Construction: silicon avalanche diode, epoxy-molded, rugged and mechanically robust.
- Compliance: RoHS compliant (lead-free).
- Applications: power-supply and DC-bus protection, telecom, automotive, industrial control, and any 170 V rail surge protection.
Note: Exact values for VBR (breakdown), VCL (clamp), and temperature/rating tolerances are specified in the datasheet for the specific lot; refer to it for precise limits.

Package

SMCJ170A is in the SMC (DO-214AB) surface-mount package.

Pinout

- Pin count: 2 terminals (anode and cathode) in the SMC/DO-214AB package.
- Function: Transient Voltage Suppressor (TVS) diode used for surge/ESD protection by clamping overvoltage to protect downstream circuitry.

Manufacturer

Manufacturer: Littelfuse, Inc.
Company type: Littelfuse is a global electronics components company that designs and manufactures circuit protection products, including fuses, TVS diodes (like the SMCJ170A), polyswitches, and related protection solutions.

Application

SMCJ170A is a high‑power TVS diode (SMCJ package) with about 170 V stand‑off, used to clamp transient surges on power rails and lines up to ~170 V. Typical applications: surge/ESD protection for AC mains interfaces (120 VAC line, 170 Vpeak), DC bus protection in power supplies and telecom/data equipment, protection on industrial control and consumer electronics input stages, and line/signal protection in high‑voltage or high‑energy environments.

Equivalent

SMCJ170A is a 170 V standoff TVS diode in the SMC (DO-214AB) package (~1 kW peak pulse). Equivalents are other 170 V TVS diodes in the same packaging from major vendors (e.g., Vishay, Littelfuse, Bourns, ON Semiconductor, Nexperia). For exact cross-reference, please specify whether you need unidirectional vs bidirectional and packaging (SMC vs SMA or axial).

Shipping

Shipping MethodsWe

offer global shipping services through DHL, FedEx, TNT, UPS, or any other forwarder of your choice.


Shipping Fee Reference (DHL/FedEx):

DHL: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 2-5 business days.

FedEx: Shipping cost ranges from $25-$40 (0.5kg), with an estimated delivery time of 3-7 business days.

UPS: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 3-7 business days.

TNT: Shipping cost ranges from $25-$65 (0.5kg), with an estimated delivery time of 3-7 business days.

EMS: Shipping cost ranges from $30-$50 (0.5kg), with an estimated delivery time of 7-15 business days.

Registered Air Mail: Shipping cost is $2-$4 (0.1kg), with an estimated delivery time of 5-20 business days.

Payments

Payment Methods

The Payment term is 100% Prepaid.

Currently, we only accept the below payment methods:

1. PayPal

2. Credit/ Debit Card

3. Wire Transfer

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