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

Taiwan Semiconductor Corporation 1.5KE100A A0G

Name: 1.5KE100A A0G
Brand: Taiwan Semiconductor Corporation
SKU: 1.5KE100A A0G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 1.5KE100A A0G

Manufacturer:: Taiwan Semiconductor Corporation

Category:: TVS Diodes

Package:: DO-201AA, DO-27, Axial

Datasheet:: 1.5KE100A A0G.pdf

Description:: TVS DIODE 85.5VWM 137VC DO201

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Inventory:2,223

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Product details

Overview

1.5KE100A A0G from Taiwan Semiconductor is a unidirectional 1500W transient voltage suppressor (TVS) diode in DO-201 package, with nominal breakdown voltage 100 V, working stand-off voltage 85.5 V, clamping voltage 137 V at 11.4 A peak pulse current, and fast response time <1.0 ps - designed for automotive and industrial power rail protection against ISO 7637-2 Pulse 1/2a/2b/3a/3b transients.

For engineers reviewing the 1.5KE100A A0G datasheet, 1.5KE100A A0G pinout, 1.5KE100A A0G application, or 1.5KE100A A0G equivalent, this page delivers verified electrical parameters, DO-201 terminal polarity mapping, real-world clamping performance data, and AEC-Q101-comparable alternatives for ESD and inductive switching surge protection.

Technical Context

The 1.5KE100A A0G operates as a unidirectional avalanche diode, triggering when reverse voltage exceeds its 95–105 V breakdown range (tested at 1 mA), limiting transient energy by clamping to ≤137 V at 11.4 A (10/1000 μs waveform). Its low dynamic impedance ensures rapid voltage stabilization during fast-rising surges.

It meets ISO 7637-2 immunity requirements for automotive electronics and supports steady-state power dissipation of 5 W at 75°C lead temperature on 16 mm × 16 mm copper pad. Junction temperature range is −55 °C to +175 °C, enabling under-hood deployment.

Key Specifications

Parameter	Value and Actual Design Meaning
V_BR @ I_T = 1 mA	95–105 V - defines precise avalanche onset threshold for reliable overvoltage triggering
V_WM	85.5 V - maximum continuous reverse operating voltage before leakage rises significantly
V_C @ I_PP = 11.4 A	137 V - clamped voltage during 10/1000 μs surge, limiting downstream IC stress
P_PK	1500 W - peak pulse power handling per single non-repetitive 10/1000 μs event
I_PP	11.4 A - maximum surge current it safely diverts without failure
Response Time	<1.0 ps - enables suppression of sub-nanosecond ESD events before system damage occurs
Junction Temp Range	−55 °C to +175 °C - supports operation in engine control units and industrial motor drives

Pinout & Package

Package: DO-201 axial-leaded through-hole package with cathode band marking; tin-plated leads compliant with J-STD-002 solderability; UL 94V-0 molding compound; weight ≈ 0.090 g.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward conduction path / low-impedance return during clamping	Connected to protected circuit ground or low-side reference; carries full surge return current
Cathode	Reverse-biased high-voltage input / clamping node	Connected to power rail or signal line being protected; avalanche conduction begins here at V_BR

Key Features

Feature	Design Value
AEC-Q101 qualification option	Available in H-suffix variants (e.g., 1.5KE100AH), confirming reliability for automotive power systems
Low dynamic impedance	Enables tight clamping window (V_C − V_BR = 32 V), minimizing voltage overshoot on protected lines
ISO 7637-2 compliance	Validated against Pulse 1 (inductive load dump), Pulse 2a/2b (load dump & battery disconnect), and Pulse 3a/3b (switching transients)
RoHS & halogen-free	Meets IEC 61249-2-21; suitable for environmentally regulated industrial and automotive supply chains
16 mm × 16 mm thermal pad support	Enables 5 W steady-state dissipation at T_L = 75 °C - critical for sustained surge duty cycles

Applications

Automotive Power Rail Protection	Industrial PLC I/O Protection
Use Scenario: Suppresses load-dump transients (ISO 7637-2 Pulse 2b) on 12 V/24 V vehicle battery rails feeding ECUs and body controllers. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power input and ground, conducting only during reverse overvoltage events. Use Value: Clamps 10/1000 μs surges to ≤137 V, preventing damage to 36 V-rated DC-DC converters and microcontrollers.	Use Scenario: Protects digital input modules in programmable logic controllers from inductive kickback when solenoids or relays switch off. IC Role / Device Role / Timing Role: Standoff device across input terminals, absorbing stored magnetic energy before it reaches isolation barriers or MCU GPIOs. Use Value: 1500 W surge rating handles >100× typical relay coil energy, extending field reliability beyond 100,000 operations.
LED Driver Overvoltage Suppression	ESD-Sensitive Sensor Interface
Use Scenario: Shields constant-current LED drivers in streetlight systems from lightning-induced surges on AC mains or DC bus lines. IC Role / Device Role / Timing Role: Primary front-end clamp on DC output rail, positioned upstream of buck controller and gate driver stages. Use Value: 175 °C max junction temperature allows mounting near hot-running LED heatsinks without derating.	Use Scenario: Guards analog front-ends of automotive cabin sensors (e.g., occupancy, humidity) against human-body-model (HBM) ESD events. IC Role / Device Role / Timing Role: Low-capacitance (<100 pF at 0 V) unidirectional clamp on signal line, grounded at PCB edge. Use Value: Sub-1 ps response captures ESD rise times faster than most interface ICs can react, reducing latch-up risk.

Automotive Power Rail Protection

Industrial PLC I/O Protection

Use Scenario: Suppresses load-dump transients (ISO 7637-2 Pulse 2b) on 12 V/24 V vehicle battery rails feeding ECUs and body controllers.

IC Role / Device Role / Timing Role: Unidirectional TVS placed between power input and ground, conducting only during reverse overvoltage events.

Use Value: Clamps 10/1000 μs surges to ≤137 V, preventing damage to 36 V-rated DC-DC converters and microcontrollers.

Use Scenario: Protects digital input modules in programmable logic controllers from inductive kickback when solenoids or relays switch off.

IC Role / Device Role / Timing Role: Standoff device across input terminals, absorbing stored magnetic energy before it reaches isolation barriers or MCU GPIOs.

Use Value: 1500 W surge rating handles >100× typical relay coil energy, extending field reliability beyond 100,000 operations.

LED Driver Overvoltage Suppression

ESD-Sensitive Sensor Interface

Use Scenario: Shields constant-current LED drivers in streetlight systems from lightning-induced surges on AC mains or DC bus lines.

IC Role / Device Role / Timing Role: Primary front-end clamp on DC output rail, positioned upstream of buck controller and gate driver stages.

Use Value: 175 °C max junction temperature allows mounting near hot-running LED heatsinks without derating.

Use Scenario: Guards analog front-ends of automotive cabin sensors (e.g., occupancy, humidity) against human-body-model (HBM) ESD events.

IC Role / Device Role / Timing Role: Low-capacitance (<100 pF at 0 V) unidirectional clamp on signal line, grounded at PCB edge.

Use Value: Sub-1 ps response captures ESD rise times faster than most interface ICs can react, reducing latch-up risk.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
Littelfuse SMAJ100A	Same DO-214AC (SMA) package; lower P_PK = 400 W; V_C = 166 V @ 2.5 A	Not rated for ISO 7637-2; suited for board-level ESD only, not automotive load dump	Select when space-constrained layouts require surface-mount and surge energy is ≤400 W
ON Semiconductor 1.5SMC100A	DO-214AB (SMC) package; P_PK = 1500 W; V_C = 149 V @ 10.1 A; higher leakage (5 μA @ V_WM)	Compatible with same PCB footprint as 1.5KE100A A0G in through-hole adapter designs	Choose for drop-in replacement where DO-201 mechanical retention is unnecessary and SMC thermal mass is preferred

Compared with 1.5KE100A A0G, SMAJ100A offers smaller size but sacrifices 73% surge capacity and automotive qualification; 1.5SMC100A matches power rating and clamping performance but requires rework for surface-mount assembly and exhibits higher leakage - making 1.5KE100A A0G optimal for high-energy, through-hole, automotive-grade deployments.

Availability

1.5KE100A A0G is available at Aetrix Electronics and suitable for automotive ECU design, industrial PLC I/O modules, LED driver protection, and sensor interface hardening requiring stable component supply and long-term lifecycle continuity.

Supply support for 1.5KE100A A0G 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 analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving global automotive, industrial, and consumer markets since 1979.

The 1.5KE series was developed specifically for high-energy transient suppression in harsh environments - emphasizing AEC-Q101 readiness, ISO 7637-2 compliance, and robust thermal performance in legacy through-hole form factors.

FAQ

What is the breakdown voltage tolerance of the 1.5KE100A A0G?

The 1.5KE100A A0G has a guaranteed breakdown voltage range of 95 V to 105 V when tested at 1 mA (V_BR min/max). This ±5% tolerance ensures consistent clamping behavior across production lots and supports predictable overvoltage protection design margins in automotive and industrial power rails.

Is the 1.5KE100A A0G RoHS and halogen-free compliant?

Yes, the 1.5KE100A A0G 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 satisfy J-STD-002 solderability requirements - confirming suitability for environmentally regulated manufacturing and end-use markets.

Does the 1.5KE100A A0G meet ISO 7637-2 immunity standards?

Yes, the 1.5KE100A A0G is explicitly validated to meet ISO 7637-2 for Pulses 1, 2a, 2b, 3a, and 3b. This certification covers key automotive transient threats including load dump, battery disconnection, and inductive switching noise - making it appropriate for ECU, BCM, and ADAS power rail protection.

What is the clamping voltage of the 1.5KE100A A0G at its rated peak pulse current?

The 1.5KE100A A0G clamps to a maximum of 137 V when subjected to its rated peak pulse current of 11.4 A (10/1000 μs waveform). This value is measured under standardized test conditions and defines the upper voltage limit imposed on protected circuits during surge events.

Can the 1.5KE100A A0G be used in bidirectional configurations?

No - the 1.5KE100A A0G is a unidirectional TVS diode, marked with a cathode band and intended for reverse-biased operation only. For bidirectional protection, use the CA-suffixed variant (e.g., 1.5KE100CA) or select a symmetric bipolar device; mixing unidirectional parts in AC-coupled paths risks forward conduction failure.

1.5KE100A A0G Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Package/Case:: DO-201AA, DO-27, Axial

Series:: 1.5KE

Packaging:: Tape & Box (TB)

Product Status:: Active

Type:: Zener

Unidirectional Channels:: 1

Bidirectional Channels:: -

Voltage - Reverse Standoff (Typ):: 85.5V

Voltage - Breakdown (Min):: 95V

Voltage - Clamping (Max) @ Ipp:: 137V

Current - Peak Pulse (10/1000µs):: 11.4A

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-201

1.5KE100A A0G FAQ

1.How can I place an order for 1.5KE100A A0G through Aetrix?

Please submit a Request for Quotation (RFQ) for 1.5KE100A A0G 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 1.5KE100A A0G reliable?

The price and inventory of 1.5KE100A A0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE100A A0G is usually 5 days.

3.What payment methods are accepted for 1.5KE100A A0G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE100A A0G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 1.5KE100A A0G?

1.5KE100A A0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 1.5KE100A A0G 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 1.5KE100A A0G?

For technical support, including 1.5KE100A A0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE100A A0G requirements.

6.How does Aetrix verify that 1.5KE100A A0G is sourced from the original manufacturer or authorized distributors?

All 1.5KE100A A0G 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 1.5KE100A A0G meets industry standards.

7.What is the process for return or replacement of 1.5KE100A A0G?

All 1.5KE100A A0G units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE100A A0G, 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 1.5KE100A A0G part is unused and in its original packaging.

Return procedure for 1.5KE100A A0G:

1.Submit a request within 90 days.

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

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