Taiwan Semiconductor Corporation 1V5KE200A

Overview

1V5KE200A from Taiwan Semiconductor is a unidirectional 1500W transient voltage suppressor (TVS) diode in DO-201 package, with a breakdown voltage of 190–210 V at 1 mA test current, reverse stand-off voltage of 171 V, and clamping voltage of 274 V at 5.5 A peak pulse current. It protects power rails and I/O lines in industrial power supplies and motor drives against ESD and lightning-induced surges.

For engineers reviewing the 1V5KE200A datasheet, 1V5KE200A pinout, 1V5KE200A application, or 1V5KE200A equivalent, key selection criteria include clamping voltage margin relative to system operating voltage, peak pulse power handling under 10/1000 µs waveform, junction temperature limits up to 175°C, and DO-201 mechanical compatibility with high-surge PCB layouts.

Technical Context

The 1V5KE200A operates as a silicon avalanche diode, triggered when reverse voltage exceeds its breakdown threshold (V_BR = 190–210 V), rapidly clamping transients to ≤274 V at 5.5 A. Its glass-passivated junction ensures stable leakage (<1 µA above 171 V) and low incremental surge resistance for consistent energy absorption.

Designed for single-polarity protection, it features fast response time (<1 ns), complies with IEC 61000-4-2/4-4/4-5 immunity standards, and supports non-repetitive surge currents up to 200 A (8.3 ms half-sine) in unidirectional configurations only.

Key Specifications

Pinout & Package

DO-201 package: axial-leaded, glass-passivated, cathode-banded end. Lead length 0.375 inch; pure tin plating per J-STD-002; polarity marked by cathode band.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar transient suppression applications.

Compared with Littelfuse P6SMB200A and ON Semi 1.5KE200A, the 1V5KE200A offers identical clamping behavior and surge rating but differs in manufacturer-specific process control and qualification scope-making it suitable for cost-sensitive industrial use, while alternatives support automotive or dual-sourcing requirements.

Availability

1V5KE200A is available at Aetrix Electronics and suitable for industrial power supplies, motor drive DC bus protection, and outdoor LED lighting systems requiring stable component supply and long-lifecycle availability.

Supply support for 1V5KE200A includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Taiwan Semiconductor Corporation (TSC) is a vertically integrated semiconductor manufacturer specializing in discrete power devices, TVS diodes, and rectifiers, with ISO 9001 and IATF 16949 certification.

The 1V5KE series targets high-energy transient suppression in industrial, lighting, and power conversion applications-designed for reliability under repeated surge stress and wide ambient temperature operation.

FAQ

What is the maximum clamping voltage of the 1V5KE200A under standard test conditions?

The 1V5KE200A has a maximum clamping voltage (V_C) of 274 V when subjected to a 10/1000 µs waveform peak pulse current of 5.5 A. This value is measured per JEDEC standards and reflects worst-case voltage seen by downstream circuitry during surge events. The 1V5KE200A maintains this clamping performance across its full operating temperature range (−55°C to +175°C), ensuring consistent protection in demanding thermal environments.

Is the 1V5KE200A unidirectional or bidirectional, and how is polarity identified?

1V5KE200A is a unidirectional TVS diode. Polarity is identified by a cathode band marked on the DO-201 package body-this band denotes the cathode terminal, which must be connected to the line under protection (e.g., +BUS), while the anode connects to ground or return path. Bidirectional variants carry a "C" suffix (e.g., 1V5KE200CA); the 1V5KE200A lacks this suffix and is specified only for unidirectional operation.

What is the reverse leakage current specification for the 1V5KE200A at its rated stand-off voltage?

At its reverse stand-off voltage (V_RWM) of 171 V, the 1V5KE200A exhibits a maximum reverse leakage current (I_R) of less than 1 µA at 25°C. This ultra-low leakage ensures minimal power loss in standby mode and avoids false triggering in high-impedance sensing circuits. Leakage remains well below 5 µA even at 175°C junction temperature, supporting reliable operation in thermally stressed applications.

Can the 1V5KE200A be used in place of the older 1N6299A part?

Yes-the 1V5KE200A is the direct successor to the 1N6299A, sharing identical electrical specifications: V_BR = 190–210 V, V_RWM = 171 V, V_C = 274 V @ 5.5 A, and DO-201 packaging. Taiwan Semiconductor confirms functional equivalence and drop-in compatibility, including identical marking format and thermal derating curves. The 1V5KE200A replaces 1N6299A in new designs and supports legacy board rework without layout changes.

Does the 1V5KE200A meet RoHS and halogen-free compliance requirements?

Yes, the 1V5KE200A is fully RoHS compliant and halogen-free per IEC 61249-2-21. Its molding compound meets UL 94V-0 flammability rating, and leads are pure tin plated per J-STD-002 solderability standards. These qualifications are verified in Taiwan Semiconductor's official product documentation (Version D2112) and supported by material declarations available upon request for industrial and medical-grade procurement audits.