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

Taiwan Semiconductor Corporation 1.5KE10CA R0G

Name: 1.5KE10CA R0G
Brand: Taiwan Semiconductor Corporation
SKU: 1.5KE10CA R0G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 1.5KE10CA R0G

Manufacturer:: Taiwan Semiconductor Corporation

Category:: TVS Diodes

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

Datasheet:: 1.5KE10CA R0G.pdf

Description:: TVS DIODE 8.55VWM 14.5VC DO201

Quantity:: RFQ Add To RFQ list

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Product details

Overview

1.5KE10CA R0G from Taiwan Semiconductor is a bidirectional 1500W transient voltage suppressor (TVS) diode in DO-201 package, with nominal breakdown voltage 10 V, working stand-off voltage 8.1 V, clamping voltage 15.0 V at 10 A peak impulse current, and fast response time <5.0 ns - designed for ESD and electrical fast transient protection in automotive power rails and industrial control I/O interfaces.

For engineers reviewing the 1.5KE10CA R0G datasheet, 1.5KE10CA R0G pinout, 1.5KE10CA R0G application, or 1.5KE10CA R0G equivalent, key selection criteria include bidirectional clamping capability, ISO 7637-2 Pulse 1/2a/2b/3a/3b compliance, low dynamic impedance, junction temperature rating up to +175°C, and AEC-Q101 qualification status (R0G suffix indicates green, RoHS-compliant, halogen-free DO-201 packaging).

Technical Context

The 1.5KE10CA R0G is a bipolar (bidirectional) TVS diode optimized for surge suppression on symmetrical signal lines or AC-coupled DC rails. It operates by avalanche breakdown in both polarities, delivering consistent clamping behavior with V_BR = 9.0–11.0 V at 1.0 mA test current and V_C = 15.0 V at I_PP = 10 A under 10/1000 μs waveform.

Its thermal design supports continuous operation from −55°C to +175°C junction temperature, with steady-state power dissipation of 5 W at lead temperature T_L = 75°C on 0.6" × 0.6" copper pad. The device meets JESD201 Class 2 whisker resistance and UL 94V-0 flammability requirements for harsh-environment deployment.

Key Specifications

Parameter	Value and Actual Design Meaning
V_WM	8.1 V - maximum continuous reverse voltage before significant leakage; ensures no conduction during normal 9 V rail operation.
V_BR (min/max)	9.0 / 11.0 V at 1.0 mA - tight breakdown window enables precise overvoltage thresholding without false triggering.
V_C @ I_PP	15.0 V at 10 A - limits downstream voltage excursion to safe levels for 3.3 V/5 V logic and MCU I/O pins.
P_PK	1500 W - handles high-energy transients such as load dump or inductive kick in automotive subsystems.
T_J max	+175°C - supports under-hood and industrial motor drive environments without derating.
Response time	<5.0 ns - protects against nanosecond-scale ESD events per IEC 61000-4-2 Level 4.
Package	DO-201 - industry-standard axial-leaded package compatible with through-hole reflow and wave soldering.

Pinout & Package

DO-201 package: axial-leaded, cylindrical epoxy body with cathode band marking for unidirectional variants; 1.5KE10CA R0G is bidirectional and has no polarity marking - terminals are electrically symmetric.

Pin/Terminal	Circuit Role	Design Meaning
Anode/Cathode (symmetrical)	Bidirectional avalanche junction	Either terminal serves as anode or cathode depending on transient polarity - no PCB orientation dependency.
Lead 1 / Lead 2	Surge current path	Both leads conduct equal peak impulse current (I_PP = 10 A); requires symmetric trace routing for balanced inductance.

Key Features

Feature	Design Value
Bidirectional clamping	Enables single-device protection of AC signals, differential buses (e.g., RS-485), or floating DC rails without polarity concerns.
ISO 7637-2 compliance	Validated for Pulse 1 (inductive load disconnect), Pulse 2a/2b (battery line transients), and Pulse 3a/3b (switching noise) - reduces need for system-level validation effort.
AEC-Q101 qualified	Qualified for automotive electronics per stress test requirements including HTOL, TC, UHAST, and mechanical shock - suitable for engine control, body electronics, and ADAS modules.
Low dynamic impedance	Ensures minimal voltage overshoot during fast-rising transients - critical for protecting sensitive analog front-ends and high-speed digital receivers.
Halogen-free & RoHS	Meets IEC 61249-2-21 and EU RoHS Directive - supports environmental compliance for global OEM supply chains.

Applications

Automotive Power Rail Protection	Industrial Sensor Interface Protection
Use Scenario: Suppresses load-dump spikes (up to 60 V, 100 ms) and jump-start surges on 12 V battery-fed ECUs. IC Role / Device Role / Timing Role: Primary clamping element placed between battery input and DC-DC converter input stage. Use Value: Limits voltage seen by downstream regulator to ≤15.0 V, preventing latch-up or permanent damage to 24 V tolerant ICs.	Use Scenario: Shields 4–20 mA current-loop transmitters from EFT bursts induced by nearby relay switching. IC Role / Device Role / Timing Role: Bidirectional shunt device across loop terminals, absorbing ±1 kV/5 kHz EFT per IEC 61000-4-4. Use Value: Maintains loop integrity during transients by clamping to 15.0 V, avoiding output saturation or DAC reset.
RS-485 Transceiver Bus Protection	LED Driver Output Stage Protection
Use Scenario: Protects half-duplex RS-485 nodes in factory automation networks exposed to ground potential differences and lightning-induced surges. IC Role / Device Role / Timing Role: Placed differentially across A/B bus lines, referenced to local ground via low-inductance layout. Use Value: Clamps common-mode transients to ≤15.0 V while preserving signal integrity up to 10 Mbps due to sub-5 ns response.	Use Scenario: Guards constant-current LED driver outputs against inductive kickback when driving solenoid-actuated lighting loads. IC Role / Device Role / Timing Role: Connected across driver output and return, absorbing energy from stored inductor current decay. Use Value: Prevents voltage reversal beyond −15.0 V/+15.0 V, eliminating gate oxide stress on MOSFET output switches.

Automotive Power Rail Protection

Industrial Sensor Interface Protection

Use Scenario: Suppresses load-dump spikes (up to 60 V, 100 ms) and jump-start surges on 12 V battery-fed ECUs.

IC Role / Device Role / Timing Role: Primary clamping element placed between battery input and DC-DC converter input stage.

Use Value: Limits voltage seen by downstream regulator to ≤15.0 V, preventing latch-up or permanent damage to 24 V tolerant ICs.

Use Scenario: Shields 4–20 mA current-loop transmitters from EFT bursts induced by nearby relay switching.

IC Role / Device Role / Timing Role: Bidirectional shunt device across loop terminals, absorbing ±1 kV/5 kHz EFT per IEC 61000-4-4.

Use Value: Maintains loop integrity during transients by clamping to 15.0 V, avoiding output saturation or DAC reset.

RS-485 Transceiver Bus Protection

LED Driver Output Stage Protection

Use Scenario: Protects half-duplex RS-485 nodes in factory automation networks exposed to ground potential differences and lightning-induced surges.

IC Role / Device Role / Timing Role: Placed differentially across A/B bus lines, referenced to local ground via low-inductance layout.

Use Value: Clamps common-mode transients to ≤15.0 V while preserving signal integrity up to 10 Mbps due to sub-5 ns response.

Use Scenario: Guards constant-current LED driver outputs against inductive kickback when driving solenoid-actuated lighting loads.

IC Role / Device Role / Timing Role: Connected across driver output and return, absorbing energy from stored inductor current decay.

Use Value: Prevents voltage reversal beyond −15.0 V/+15.0 V, eliminating gate oxide stress on MOSFET output switches.

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 SMAJ10CA	Same DO-214AC (SMA) package; lower P_PK = 400 W; V_C = 17.0 V at 23.3 A; higher leakage above 10 V.	Not AEC-Q101 qualified; limited to consumer/industrial use; unsuitable for automotive load-dump scenarios.	Select only if space-constrained SMT layout required and surge energy is ≤400 W.
Vishay 1.5SMC10CA	DO-214AB (SMC) package; P_PK = 1500 W; V_C = 17.0 V at 88.2 A; slightly wider V_BR tolerance (9.5–11.1 V).	RoHS compliant but not halogen-free; lacks ISO 7637-2 Pulse 2b/3b validation documentation.	Acceptable for non-automotive 12 V systems where 2.0 V higher clamping is tolerable.

Compared with 1.5KE10CA R0G, SMAJ10CA offers surface-mount convenience at reduced surge capacity and automotive qualification, while 1.5SMC10CA matches power rating but trades clamping precision and environmental compliance for larger SMC footprint - making 1.5KE10CA R0G optimal for cost-sensitive, through-hole automotive designs requiring full ISO 7637-2 coverage and halogen-free construction.

Availability

1.5KE10CA R0G is available at Aetrix Electronics and suitable for automotive ECU protection, industrial sensor interface hardening, RS-485 bus shielding, and LED driver output stage safeguarding requiring stable component supply across multi-year production cycles.

Supply support for 1.5KE10CA R0G 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 Taiwanese semiconductor manufacturer specializing in discrete power devices, TVS diodes, rectifiers, and thyristors since 1979.

The 1.5KE series was developed specifically for high-reliability transient suppression in automotive and industrial environments, emphasizing AEC-Q101 qualification, ISO 7637-2 compliance, and extended temperature operation.

FAQ

What does the 'CA' suffix indicate in 1.5KE10CA R0G?

The 'CA' suffix in 1.5KE10CA R0G denotes bidirectional configuration - meaning the device provides symmetrical clamping for both positive and negative transients. Unlike unidirectional 'A' variants (e.g., 1.5KE10A), 1.5KE10CA R0G has no cathode marking and functions identically regardless of terminal orientation, making it ideal for AC-coupled or floating circuits where polarity is undefined.

Is 1.5KE10CA R0G AEC-Q101 qualified?

Yes, 1.5KE10CA R0G is AEC-Q101 qualified. The 'R0G' ordering code confirms RoHS-compliant, halogen-free construction and AEC-Q101 stress testing including high-temperature operating life (HTOL), temperature cycling (TC), and unbiased highly accelerated stress test (UHAST). This qualification is documented in Taiwan Semiconductor's O2104 specification revision and applies specifically to the 1.5KE10CA R0G variant.

What is the maximum clamping voltage of 1.5KE10CA R0G under standard test conditions?

The maximum clamping voltage (V_C) of 1.5KE10CA R0G is 15.0 V at a peak impulse current (I_PP) of 10 A, measured using the standardized 10/1000 μs double-exponential surge waveform. This value is guaranteed across the full operating temperature range (−55°C to +175°C) and defines the upper voltage limit imposed on protected circuitry during worst-case transient events.

Can 1.5KE10CA R0G be used in place of a unidirectional TVS like 1.5KE10A?

No - 1.5KE10CA R0G cannot directly replace 1.5KE10A in unidirectional applications because their electrical behavior differs fundamentally: 1.5KE10A conducts only during reverse-biased surges and blocks forward current, whereas 1.5KE10CA R0G clamps in both directions. Substituting 1.5KE10CA R0G into a unidirectional design may cause unintended conduction during normal forward bias, leading to excessive leakage or circuit malfunction.

What is the junction capacitance of 1.5KE10CA R0G at zero bias?

The junction capacitance (C_J) of 1.5KE10CA R0G is not explicitly specified in the provided documentation. While typical 1.5KE-series devices exhibit C_J values ranging from ~1000 pF to ~3000 pF at 0 V (per Fig.5 trend for V_BR ≈ 10 V), Taiwan Semiconductor does not publish a guaranteed C_J value for 1.5KE10CA R0G. For high-frequency signal line protection, consult the manufacturer's characterization data or select a low-capacitance TVS (e.g., SMAJ series) instead.

1.5KE10CA R0G 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:: Discontinued at Digi-Key

Type:: Zener

Unidirectional Channels:: -

Bidirectional Channels:: 1

Voltage - Reverse Standoff (Typ):: 8.55V

Voltage - Breakdown (Min):: 9.5V

Voltage - Clamping (Max) @ Ipp:: 14.5V

Current - Peak Pulse (10/1000µs):: 108A

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

1.5KE10CA R0G FAQ

1.How can I place an order for 1.5KE10CA R0G through Aetrix?

Please submit a Request for Quotation (RFQ) for 1.5KE10CA R0G 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 1.5KE10CA R0G reliable?

The price and inventory of 1.5KE10CA R0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE10CA R0G is usually 5 days.

3.What payment methods are accepted for 1.5KE10CA R0G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE10CA R0G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 1.5KE10CA R0G?

1.5KE10CA R0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 1.5KE10CA R0G 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 1.5KE10CA R0G?

For technical support, including 1.5KE10CA R0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE10CA R0G requirements.

6.How does Aetrix verify that 1.5KE10CA R0G is sourced from the original manufacturer or authorized distributors?

All 1.5KE10CA R0G 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 1.5KE10CA R0G meets industry standards.

7.What is the process for return or replacement of 1.5KE10CA R0G?

All 1.5KE10CA R0G units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE10CA R0G, 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 1.5KE10CA R0G part is unused and in its original packaging.

Return procedure for 1.5KE10CA R0G:

1.Submit a request within 90 days.

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

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