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

Taiwan Semiconductor Corporation 1.5KE10

Name: 1.5KE10
Brand: Taiwan Semiconductor Corporation
SKU: 1.5KE10
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 1.5KE10

Manufacturer:: Taiwan Semiconductor Corporation

Category:: TVS Diodes

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

Datasheet:: 1.5KE10.pdf

Description:: 1500W, 10V, 5%, UNIDIRECTIONAL,

Quantity:: RFQ Add To RFQ list

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Inventory:9,433

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Product details

Overview

1.5KE10 from Taiwan Semiconductor is a unidirectional 1500W transient voltage suppressor (TVS) diode with a nominal breakdown voltage of 10V, minimum V_BR of 9.0V at 1.0mA test current, maximum clamping voltage of 15.0V at 10A peak impulse current, and DO-201 package. It protects automotive and industrial power rails against ISO 7637-2 Pulse 1/2a/2b/3a/3b transients.

For engineers reviewing the 1.5KE10 datasheet, 1.5KE10 pinout, 1.5KE10 application, or 1.5KE10 equivalent, this device is selected for high-energy surge suppression in DC power inputs, ESD-sensitive interfaces, and inductive load switching circuits where fast response (<1.0ps), low dynamic impedance, and AEC-Q101 qualification are required.

Technical Context

The 1.5KE10 operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds its 9.0–11.0V breakdown range. Its clamping action limits transient voltages to ≤15.0V at 10A, with <1μA leakage above 8.1V working stand-off voltage and 0.073%/°C temperature coefficient of V_BR.

It sustains 1500W non-repetitive peak pulse power per 10/1000μs waveform, derates linearly above 25°C ambient, and meets UL 94V-0 flammability and JESD201 Class 2 whisker resistance requirements in its DO-201 molded package with pure tin-plated leads.

Key Specifications

Parameter	Value and Actual Design Meaning
V_BR @ I_T = 1.0mA	9.0V min – 11.0V max: Ensures reliable turn-on within defined tolerance before clamping begins
V_WM	8.10V: Maximum continuous reverse operating voltage without significant leakage
V_C @ I_PP = 10A	15.0V max: Peak voltage seen by protected circuit during worst-case 10A surge
P_PK	1500W: Energy-handling capacity for 10/1000μs transients, critical for automotive load-dump immunity
I_PP max	10A: Maximum surge current it can safely divert without degradation
Junction temp. range	–55°C to +175°C: Enables use in under-hood automotive and industrial environments
Leakage @ V_WM	<1μA: Minimizes standby power loss and avoids false triggering in low-power systems

Pinout & Package

Package: DO-201 - axial-leaded, epoxy-molded case with cathode band marking; UL 94V-0 rated; 0.090g weight; compatible with wave and reflow soldering per J-STD-002.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward conduction path / surge return path	Connected to ground or low-impedance return in unidirectional configuration
Cathode	Protected line input / transient injection point	Connected to the line being protected (e.g., 12V rail); marked with band

Key Features

Feature	Design Value
1500W peak pulse power	Supports ISO 7637-2 Pulse 5a (load dump) immunity up to 12V system levels
Clamping voltage ≤15.0V @ 10A	Keeps downstream 5V/3.3V logic ICs within safe absolute maximum ratings during surge events
Response time <1.0ps	Engages before most microsecond-scale transients fully develop, limiting energy delivery
AEC-Q101 qualified option available	Validated for automotive-grade reliability including temperature cycling, HTRB, and mechanical shock
DO-201 package with tin-plated leads	Enables automated assembly and ensures long-term solder joint integrity in harsh environments

Applications

Automotive Power Rail Protection	Industrial Sensor Interface Protection
Use Scenario: 12V battery-fed ECUs exposed to load dump and jump-start transients per ISO 7637-2. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power input and ground to clamp overvoltage spikes. Use Value: Limits voltage to ≤15.0V during 10A surges, preventing damage to PMICs and MCU power supplies.	Use Scenario: 24V analog sensor signal lines in factory automation subject to EFT and inductive coupling. IC Role / Device Role / Timing Role: Bidirectional-capable protection (via CA suffix variants) or unidirectional clamp on supply rail. Use Value: Sub-1ps response prevents latch-up in op-amps and ADC front-ends during fast transients.
LED Driver Input Protection	DC Motor Control Board Protection
Use Scenario: Constant-current LED drivers powered from 12–24V supplies in outdoor lighting. IC Role / Device Role / Timing Role: Primary overvoltage clamp on input stage, upstream of buck controller. Use Value: Withstands repeated 1500W surges while maintaining <1μA leakage to avoid efficiency loss.	Use Scenario: H-bridge motor driver PCBs subjected to back-EMF spikes during commutation. IC Role / Device Role / Timing Role: TVS across motor terminals or supply rail to absorb inductive kickback. Use Value: 175°C junction rating allows placement near heat-generating MOSFETs without derating.

Automotive Power Rail Protection

Industrial Sensor Interface Protection

Use Scenario: 12V battery-fed ECUs exposed to load dump and jump-start transients per ISO 7637-2.

IC Role / Device Role / Timing Role: Unidirectional TVS placed between power input and ground to clamp overvoltage spikes.

Use Value: Limits voltage to ≤15.0V during 10A surges, preventing damage to PMICs and MCU power supplies.

Use Scenario: 24V analog sensor signal lines in factory automation subject to EFT and inductive coupling.

IC Role / Device Role / Timing Role: Bidirectional-capable protection (via CA suffix variants) or unidirectional clamp on supply rail.

Use Value: Sub-1ps response prevents latch-up in op-amps and ADC front-ends during fast transients.

LED Driver Input Protection

DC Motor Control Board Protection

Use Scenario: Constant-current LED drivers powered from 12–24V supplies in outdoor lighting.

IC Role / Device Role / Timing Role: Primary overvoltage clamp on input stage, upstream of buck controller.

Use Value: Withstands repeated 1500W surges while maintaining <1μA leakage to avoid efficiency loss.

Use Scenario: H-bridge motor driver PCBs subjected to back-EMF spikes during commutation.

IC Role / Device Role / Timing Role: TVS across motor terminals or supply rail to absorb inductive kickback.

Use Value: 175°C junction rating allows placement near heat-generating MOSFETs without derating.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
Littelfuse SMAJ10A	Same DO-214AC package; 10V V_WM, 11.1V V_BR min, 16.7V V_C @ 10.2A; 400W rating	Lower power handling; suited for consumer electronics, not automotive load dump	Select when space-constrained layout favors SMD and surge energy is ≤400W
ON Semiconductor 1N6271	JEDEC-registered equivalent; identical V_BR, V_C, and P_PK; same DO-201 package and marking	No functional difference; dual-sourced for supply chain resilience	Drop-in replacement with validated second-source qualification and identical test data

Compared with 1.5KE10, SMAJ10A offers surface-mount convenience but sacrifices 60% surge energy capability, while 1N6271 delivers identical electrical and mechanical performance with independent manufacturing traceability-making it ideal for BOM diversification without design change.

Availability

1.5KE10 is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC I/O protection, and DC-powered lighting systems requiring stable component supply across multi-year production cycles.

Supply support for 1.5KE10 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 automotive and industrial markets.

The 1.5KE series was designed specifically for high-energy transient suppression in 12V/24V automotive and heavy-industrial power systems, emphasizing AEC-Q101 compliance, robust DO-201 packaging, and precise clamping performance.

FAQ

What is the maximum clamping voltage of the 1.5KE10 under standard test conditions?

The 1.5KE10 has a maximum clamping voltage (V_C) of 15.0V when subjected to a 10A peak impulse current (I_PP) using the 10/1000μs waveform. This value is measured at T_A = 25°C and defines the upper voltage limit imposed on protected circuitry during surge events. The 1.5KE10 maintains this clamping performance consistently across its qualified operating temperature range.

Is the 1.5KE10 suitable for bidirectional transient protection?

No-the 1.5KE10 is a unidirectional TVS diode, intended for DC line-to-ground protection only. For bidirectional applications (e.g., AC lines or data buses), the 1.5KE10CA variant must be used. The 1.5KE10's cathode band marking and asymmetric IV curve confirm its unidirectional functionality, and applying reverse polarity beyond V_WM may cause failure.

Does the 1.5KE10 meet automotive reliability standards?

The base 1.5KE10 is not AEC-Q101 qualified; however, the 1.5KE10H variant (with "H" suffix) is fully AEC-Q101 certified. This includes stress testing for temperature cycling, high-temperature reverse bias, and mechanical shock. Designers targeting automotive applications should specify 1.5KE10H to ensure compliance with OEM component qualification requirements.

What is the working stand-off voltage (V_WM) of the 1.5KE10, and why does it matter?

The 1.5KE10 has a working stand-off voltage (V_WM) of 8.10V, meaning it remains in high-impedance state below this voltage with leakage <1μA. This parameter ensures compatibility with 5V–8V nominal systems (e.g., regulated 7.5V supplies), preventing false triggering while allowing sufficient margin below V_BR to accommodate ripple and tolerance. Exceeding V_WM risks premature conduction and power loss.

How does the 1.5KE10 compare to the 1.5KE10A variant?

The 1.5KE10A offers tighter V_BR tolerance (9.50–10.5V vs. 9.00–11.00V for 1.5KE10) and slightly higher V_WM (8.55V), resulting in improved noise immunity and reduced risk of marginal conduction. Both share identical P_PK, V_C, and package. The 1.5KE10A is preferred in precision power-rail monitoring or low-voltage logic protection where tighter voltage control is critical.

1.5KE10 Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

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

Series:: 1.5KE

Packaging:: Tape & Reel (TR)

Product Status:: Active

Type:: Zener

Unidirectional Channels:: 1

Bidirectional Channels:: -

Voltage - Reverse Standoff (Typ):: 8.1V

Voltage - Breakdown (Min):: 9V

Voltage - Clamping (Max) @ Ipp:: 15V

Current - Peak Pulse (10/1000µs):: 105A

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

Power Line Protection:: No

Applications:: General Purpose

Capacitance @ Frequency:: -

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

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Through Hole

Supplier Device Package:: DO-201

1.5KE10 FAQ

1.How can I place an order for 1.5KE10 through Aetrix?

Please submit a Request for Quotation (RFQ) for 1.5KE10 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 1.5KE10 reliable?

The price and inventory of 1.5KE10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE10 is usually 5 days.

3.What payment methods are accepted for 1.5KE10?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE10 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 1.5KE10?

1.5KE10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 1.5KE10 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 1.5KE10?

For technical support, including 1.5KE10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE10 requirements.

6.How does Aetrix verify that 1.5KE10 is sourced from the original manufacturer or authorized distributors?

All 1.5KE10 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 1.5KE10 meets industry standards.

7.What is the process for return or replacement of 1.5KE10?

All 1.5KE10 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE10, 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 1.5KE10 part is unused and in its original packaging.

Return procedure for 1.5KE10:

1.Submit a request within 90 days.

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

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