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Home > Products > Circuit Protection > Transient Voltage Suppressors (TVS) > TVS Diodes

Taiwan Semiconductor Corporation 1V5KE220A

Name: 1V5KE220A
Brand: Taiwan Semiconductor Corporation
SKU: 1V5KE220A
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 1V5KE220A

Manufacturer:: Taiwan Semiconductor Corporation

Category:: TVS Diodes

Package:: DO-201AD, Axial

Datasheet:: 1V5KE220A.pdf

Description:: TVS DIODE 185VWM 328VC DO201AD

Quantity:: RFQ Add To RFQ list

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Inventory:4,988

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Product details

Overview

1V5KE220A from Taiwan Semiconductor is a unidirectional 1500W transient voltage suppressor (TVS) diode in DO-201 package, with breakdown voltage 209–231 V at 1 mA test current, reverse stand-off voltage 185 V, and clamping voltage 328 V at 4.6 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 1V5KE220A datasheet, 1V5KE220A pinout, 1V5KE220A application, or 1V5KE220A equivalent, key selection criteria include clamping ratio (VC/VRWM ≈ 1.77), low leakage (<5 µA at 185 V), 1 ms surge rating, DO-201 mechanical compatibility, and unidirectional polarity marking for correct PCB orientation.

Technical Context

The 1V5KE220A operates as a silicon avalanche diode, triggered when reverse voltage exceeds its breakdown threshold (VBR = 209–231 V), diverting transient energy to ground while limiting downstream voltage to ≤328 V. Its glass-passivated junction ensures stable VBR tolerance and long-term reliability under repetitive surge stress.

Designed for single-pulse 10/1000 µs waveform compliance per IEC 61000-4-5, it delivers 1500 W peak pulse power with low incremental surge resistance and fast response time (<1 ns). Junction temperature range is –55°C to +175°C, supporting operation in harsh thermal environments.

Key Specifications

Parameter	Value and Actual Design Meaning
V_BR (min/max)	209 V / 231 V at 1 mA - defines precise avalanche onset window for predictable clamping initiation
V_RWM	185 V - maximum continuous reverse operating voltage before leakage rises significantly
V_C @ I_PPM	328 V at 4.6 A - clamped voltage during 1500 W transient, limiting stress on protected ICs
P_PPM	1500 W - peak pulse power handling for 1 ms duration, compliant with IEC 61000-4-5 Level 4
I_R @ V_RWM	<5 µA - minimal leakage ensures negligible standby power loss in high-impedance circuits
T_J max	+175 °C - enables use in enclosed industrial enclosures without derating below ambient 125 °C

Pinout & Package

DO-201 axial-leaded package with cathode band marking; leads are pure tin-plated, solderable per J-STD-002, UL 94V-0 molded compound, 0.090 g weight.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Ground reference terminal	Connected to system ground or low-impedance return path to shunt surge current
Cathode	Protected line input	Connected to line being protected (e.g., DC bus, sensor input); marked by band

Key Features

Feature	Design Value
Glass-passivated junction	Ensures stable V_BR tolerance (±5%) and immunity to humidity-induced parameter drift
1500 W peak pulse rating	Supports direct protection of 48 V and 110 V DC industrial buses against 10/1000 µs transients
Low clamping ratio (VC/V_RWM = 1.77)	Minimizes overvoltage margin required for downstream components, reducing design margin overhead
RoHS & halogen-free	Complies with IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for green manufacturing

Applications

Industrial Power Supply Protection	Motor Drive DC Bus Clamping
Use Scenario: 110 V DC input stage of programmable logic controller (PLC) power module exposed to load dump and inductive kickback. IC Role / Device Role / Timing Role: Unidirectional TVS placed between DC+ and chassis ground to clamp transients before they reach DC-DC converter ICs. Use Value: Limits voltage to ≤328 V during 1500 W surges, preventing damage to 400 V-rated MOSFETs and gate drivers downstream.	Use Scenario: DC link of 3-phase inverter driving HVAC compressors, subject to regenerative braking spikes. IC Role / Device Role / Timing Role: Standoff protection device across DC bus terminals, absorbing stored inductive energy during rapid deceleration. Use Value: Withstands repeated 1 ms surges up to 4.6 A peak, maintaining <5 µA leakage at 185 V nominal bus voltage.
Factory Automation Sensor Interface	Outdoor LED Driver Surge Suppression
Use Scenario: 24 V analog input channel on industrial I/O module connected to proximity sensors in noisy plant environments. IC Role / Device Role / Timing Role: Front-end transient suppressor on signal line, paired with series resistor and filtering capacitor. Use Value: Fast sub-nanosecond response prevents latch-up in precision op-amps and ADCs during ESD events per IEC 61000-4-2.	Use Scenario: Constant-current LED driver board mounted on streetlight pole, exposed to induced lightning surges on AC input. IC Role / Device Role / Timing Role: Primary-level unidirectional TVS on rectified DC output, protecting LED string and constant-current IC. Use Value: 175 °C max junction temperature allows reliable operation inside thermally constrained aluminum housing.

Industrial Power Supply Protection

Motor Drive DC Bus Clamping

Use Scenario: 110 V DC input stage of programmable logic controller (PLC) power module exposed to load dump and inductive kickback.

IC Role / Device Role / Timing Role: Unidirectional TVS placed between DC+ and chassis ground to clamp transients before they reach DC-DC converter ICs.

Use Value: Limits voltage to ≤328 V during 1500 W surges, preventing damage to 400 V-rated MOSFETs and gate drivers downstream.

Use Scenario: DC link of 3-phase inverter driving HVAC compressors, subject to regenerative braking spikes.

IC Role / Device Role / Timing Role: Standoff protection device across DC bus terminals, absorbing stored inductive energy during rapid deceleration.

Use Value: Withstands repeated 1 ms surges up to 4.6 A peak, maintaining <5 µA leakage at 185 V nominal bus voltage.

Factory Automation Sensor Interface

Outdoor LED Driver Surge Suppression

Use Scenario: 24 V analog input channel on industrial I/O module connected to proximity sensors in noisy plant environments.

IC Role / Device Role / Timing Role: Front-end transient suppressor on signal line, paired with series resistor and filtering capacitor.

Use Value: Fast sub-nanosecond response prevents latch-up in precision op-amps and ADCs during ESD events per IEC 61000-4-2.

Use Scenario: Constant-current LED driver board mounted on streetlight pole, exposed to induced lightning surges on AC input.

IC Role / Device Role / Timing Role: Primary-level unidirectional TVS on rectified DC output, protecting LED string and constant-current IC.

Use Value: 175 °C max junction temperature allows reliable operation inside thermally constrained aluminum housing.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
Littelfuse SMAJ220A	Same DO-214AC (SMA) package; V_RWM = 185 V, V_C = 328 V, P_PPM = 400 W - lower power rating	Not suitable for 1500 W IEC 61000-4-5 Level 4 testing; limited to Level 2/3 or low-energy ESD	Select only if space-constrained layout requires surface-mount and surge energy is ≤400 W
ON Semiconductor 1.5KE220A	Identical DO-201 package, same V_RWM/V_C/P_PPM; JEDEC-standardized pinout and marking	Direct form-fit-function replacement with identical thermal and electrical behavior	Preferred for dual-sourcing where second-source qualification is required without revalidation

Compared with SMAJ220A and 1.5KE220A, the 1V5KE220A offers full 1500 W surge capability in the legacy DO-201 through-hole package, enabling robust protection in high-energy industrial systems where surface-mount alternatives lack sufficient pulse power margin.

Availability

1V5KE220A is available at Aetrix Electronics and suitable for industrial power supplies, motor drive DC bus protection, and outdoor LED driver designs requiring stable component supply and long-lifecycle support.

Supply support for 1V5KE220A 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, rectifiers, and MOSFETs for industrial and automotive markets.

The 1V5KE220A belongs to TSC's 1500W unidirectional TVS family designed specifically for high-energy surge immunity in factory automation, renewable energy inverters, and infrastructure power systems.

FAQ

What is the maximum clamping voltage of the 1V5KE220A under rated surge conditions?

The 1V5KE220A clamps to a maximum of 328 V when subjected to its rated peak pulse current of 4.6 A (10/1000 µs waveform). This value is measured per JEDEC standards and guarantees downstream circuit protection within safe voltage margins. The 1V5KE220A achieves this with low incremental surge resistance, ensuring consistent clamping performance across temperature and lifetime.

Is the 1V5KE220A suitable for bidirectional transient protection?

No - the 1V5KE220A is unidirectional only. For bidirectional protection, the designated variant is 1V5KE220CA (with "C" suffix), which provides symmetrical clamping in both polarities. The 1V5KE220A has a cathode band marking and must be oriented with cathode toward the protected line; using it in reverse polarity risks permanent failure.

What is the leakage current specification for the 1V5KE220A at its rated standoff voltage?

At its reverse stand-off voltage (V_RWM) of 185 V, the 1V5KE220A exhibits a maximum reverse leakage current of 5 µA at 25°C. This low leakage ensures minimal power loss in always-on industrial control circuits and avoids false triggering in high-impedance sensing nodes.

Does the 1V5KE220A meet RoHS and halogen-free requirements?

Yes - the 1V5KE220A is RoHS compliant and halogen-free per IEC 61249-2-21. Its molding compound meets UL 94V-0 flammability rating, and its pure tin-plated leads comply with J-STD-002 for solderability. These certifications are confirmed in Taiwan Semiconductor's official documentation for the 1V5KE220A.

What is the thermal derating behavior of the 1V5KE220A above 75°C ambient?

The 1V5KE220A's steady-state power dissipation derates linearly from 5 W at 75°C to zero at 175°C junction temperature. Its 1500 W peak pulse rating remains valid regardless of ambient, but repeated surges require thermal management to avoid exceeding T_J(max) = 175°C. The 1V5KE220A's DO-201 package supports lead-length-based thermal design per JEDEC guidelines.

1V5KE220A Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Package/Case:: DO-201AD, Axial

Series:: -

Packaging:: Tape & Reel (TR)

Product Status:: Active

Type:: Zener

Unidirectional Channels:: 1

Bidirectional Channels:: -

Voltage - Reverse Standoff (Typ):: 185V

Voltage - Breakdown (Min):: 209V

Voltage - Clamping (Max) @ Ipp:: 328V

Current - Peak Pulse (10/1000µs):: 4.6A

Power - Peak Pulse:: 1500W (1.5kW)

Power Line Protection:: No

Applications:: General Purpose

Capacitance @ Frequency:: -

Operating Temperature:: -55°C ~ 175°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: DO-201AD

1V5KE220A FAQ

1.How can I place an order for 1V5KE220A through Aetrix?

Please submit a Request for Quotation (RFQ) for 1V5KE220A on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for 1V5KE220A reliable?

The price and inventory of 1V5KE220A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1V5KE220A is usually 5 days.

3.What payment methods are accepted for 1V5KE220A?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1V5KE220A transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 1V5KE220A?

1V5KE220A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 1V5KE220A order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for 1V5KE220A?

For technical support, including 1V5KE220A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1V5KE220A requirements.

6.How does Aetrix verify that 1V5KE220A is sourced from the original manufacturer or authorized distributors?

All 1V5KE220A products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that 1V5KE220A meets industry standards.

7.What is the process for return or replacement of 1V5KE220A?

All 1V5KE220A units undergo pre-shipment inspection (PSI). If there is an issue with 1V5KE220A, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The 1V5KE220A part is unused and in its original packaging.

Return procedure for 1V5KE220A:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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