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Taiwan Semiconductor Corporation 1.5KE100A
- Part No.:
- 1.5KE100A
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE100A.pdf
- Description:
- TVS 1500W 100V 5% UNIDIR DO-201
- Quantity:
- Payment:
- Shipping:
Inventory:3,835
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Product details
Overview
1.5KE100A from Taiwan Semiconductor is a unidirectional 1500W transient voltage suppressor (TVS) diode with a nominal breakdown voltage of 100 V, clamping voltage of 137 V at 11.4 A peak pulse current, and DO-201 package. It delivers fast response (<1.0 ps), low dynamic impedance, and meets ISO 7637-2 Pulse 1/2a/2b/3a/3b for automotive load-dump and EFT immunity in power rail protection.
For engineers reviewing the 1.5KE100A datasheet, 1.5KE100A pinout, 1.5KE100A application, or 1.5KE100A equivalent, this page provides verified electrical specs, clamping behavior under 10/1000 µs surge, thermal derating curves, AEC-Q101 qualification status, and direct alternatives for automotive and industrial DC power line protection.
Technical Context
The 1.5KE100A operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds its 95–105 V breakdown range at 1 mA test current. Its clamping action limits transients to ≤137 V at 11.4 A, enabling robust protection of downstream DC-DC converters and microcontrollers.
It features a maximum working stand-off voltage of 85.5 V, leakage current <1 µA at rated VWM, and junction temperature range from –55 °C to +175 °C - supporting under-hood automotive environments. Thermal derating begins above 25 °C ambient per Fig.2, with 5 W steady-state dissipation on 16 mm × 16 mm copper pad.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR @ IT = 1 mA | 95–105 V - defines precise avalanche initiation threshold for reliable overvoltage triggering |
| VWM | 85.5 V - maximum continuous reverse operating voltage before leakage rises significantly |
| VC @ IPP = 11.4 A | 137 V - clamped voltage during 10/1000 µs surge, determining protected circuit's max stress level |
| PPK | 1500 W - peak pulse power handling capability under standardized surge waveform |
| IPP | 11.4 A - maximum non-repetitive peak surge current the device safely clamps |
| TJ Range | –55 °C to +175 °C - enables deployment in engine control units and industrial power supplies |
| Package | DO-201 - axial-leaded, UL 94V-0 molded case with tin-plated leads compliant to J-STD-002 |
Pinout & Package
DO-201 package: axial-leaded, cylindrical epoxy body with cathode band marking polarity. Leads are pure tin-plated, solderable per J-STD-002; weight ≈ 0.090 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Ground reference terminal | Connected to system ground or low-side return path; establishes reference for clamping |
| Cathode | Protected line input | Connected to DC supply rail (e.g., 12 V/24 V bus); absorbs positive transients to ground |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| 10/1000 µs surge rating | 1500 W peak power handling per ISO 7637-2 Pulse 5a (load dump), enabling single-device rail protection |
| Clamping ratio (VC/VBR) | ~1.37 - low ratio ensures minimal overvoltage exposure to protected ICs during surge events |
| Leakage current | <1 µA at 85.5 V - negligible standby power loss and no interference with high-impedance sensing circuits |
| Response time | <1.0 ps - faster than most semiconductor switching transients, ensuring suppression before damage occurs |
Applications
| Automotive Power Rail Protection | Industrial DC Power Input |
|---|---|
|
Use Scenario: 12 V battery-fed ECU power input subjected to ISO 7637-2 Pulse 5a (load dump) up to 120 V. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between VIN and GND, clamping surges within 1 ps. Use Value: Limits rail voltage to ≤137 V, protecting 40 V-rated DC-DC controllers and CAN transceivers without derating margin loss. |
Use Scenario: 24 V PLC power module exposed to inductive switching transients from solenoid drivers. IC Role / Device Role / Timing Role: Standoff protector on main DC input, conducting only during >85.5 V excursions. Use Value: Absorbs 1500 W surges without degradation, eliminating need for series resistors or RC snubbers in compact designs. |
| LED Driver Overvoltage Clamp | Telecom DC Feed Protection |
|
Use Scenario: Constant-current LED string driver powered from 48 V telecom supply with lightning-induced surges. IC Role / Device Role / Timing Role: Primary overvoltage clamp on input rail, shunting energy to chassis ground. Use Value: Clamps to 137 V within picoseconds, preventing latch-up or gate oxide rupture in MOSFET drivers and PWM ICs. |
Use Scenario: Central office power feed to remote DSLAM unit experiencing repetitive EFT bursts per IEC 61000-4-4. IC Role / Device Role / Timing Role: Fast-acting transient suppressor on -48 V DC feed line, bidirectional variants not required due to polarity stability. Use Value: Maintains <1 µA leakage at 85.5 V, avoiding false trips in precision current-sense monitoring circuits. |
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 SMAJ100A | Same DO-214AC (SMA) package; 100 V VBR min/max 95–105 V; 137 V VC @ 11.4 A; 400 W PPK | Lower surge rating (400 W vs. 1500 W) limits use to sub-12 V systems or secondary-stage clamping | Select for space-constrained PCBs where 1500 W is unnecessary and surface-mount assembly is preferred |
| ON Semiconductor 1N6295A | Identical electrical specs and DO-201 package; same JEDEC type number; RoHS/halogen-free compliant | No functional difference; fully interchangeable in layout and thermal design | Choose for dual-source procurement or legacy BOM continuity where ON Semi is preferred supplier |
Compared with SMAJ100A, the 1.5KE100A delivers 3.75× higher surge power handling in an axial package ideal for through-hole power rails; compared with 1N6295A, it offers identical performance but from Taiwan Semiconductor's AEC-Q101-qualified production line with distinct traceability and lot documentation.
Availability
1.5KE100A is available at Aetrix Electronics and suitable for automotive ECUs, industrial PLC power inputs, LED driver modules, and telecom DC feed protection requiring stable component supply across extended temperature ranges and high-reliability surge immunity.
Supply support for 1.5KE100A 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, specializing in TVS diodes, rectifiers, and power devices since 1979.
The 1.5KE series was designed specifically for high-energy transient suppression in automotive and industrial power systems, emphasizing AEC-Q101 compliance, tight VBR tolerance, and robust DO-201 packaging for mechanical reliability under vibration and thermal cycling.
FAQ
What is the breakdown voltage tolerance of the 1.5KE100A?
The 1.5KE100A has a guaranteed breakdown voltage range of 95 V to 105 V at 1 mA test current, corresponding to ±5% tolerance around the nominal 100 V rating. This tight VBR window ensures consistent clamping behavior across production lots and supports precise overvoltage margining in safety-critical designs like automotive body control modules. The 1.5KE100A datasheet specifies this range in the Electrical Specifications table on page 3.
Is the 1.5KE100A suitable for bidirectional transient suppression?
No - the 1.5KE100A is a unidirectional TVS diode intended for DC power line protection where polarity is fixed. Its cathode band marks the protected line connection, and it conducts only during positive transients relative to ground. For bidirectional AC or floating-rail applications, use the bipolar 1.5KE100CA variant instead. The 1.5KE100A datasheet explicitly states "unidirectional" in the device description and omits bidirectional VBR values.
Does the 1.5KE100A meet AEC-Q101 requirements?
Yes - the 1.5KE100A is AEC-Q101 qualified, as confirmed in the Features section of the Taiwan Semiconductor datasheet (Version O2104). Qualification includes stress tests for temperature cycling, high-temperature reverse bias (HTRB), and electrostatic discharge (ESD), making it suitable for automotive powertrain and chassis applications. The "H" suffix in ordering codes (e.g., 1.5KE100AH) denotes AEC-Q101 compliance, and the 1.5KE100A part falls under this qualified family.
What is the maximum clamping voltage of the 1.5KE100A during a surge event?
The 1.5KE100A clamps to a maximum of 137 V when subjected to its rated 11.4 A peak pulse current under the standard 10/1000 µs waveform. This value is measured at the device terminals and represents the highest voltage seen by downstream components during worst-case surge conditions. Designers must ensure all protected ICs have absolute maximum ratings exceeding 137 V or include additional local filtering. The 1.5KE100A datasheet lists this as VC in the Electrical Specifications table.
Can the 1.5KE100A be used in place of the older 1N6295?
Yes - the 1.5KE100A is the modern replacement for the legacy 1N6295, sharing identical electrical specifications (90–110 V VBR, 144 V VC @ 10.9 A), DO-201 package, and pinout. The "A" suffix denotes tighter VBR tolerance (95–105 V vs. 90–110 V), improved consistency, and AEC-Q101 qualification. No PCB or schematic changes are needed when upgrading from 1N6295 to 1.5KE100A, and the 1.5KE100A datasheet confirms backward compatibility in the Ordering Information section.
1.5KE100A 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):
- 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 FAQ
1.How can I place an order for 1.5KE100A through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE100A 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 reliable?
The price and inventory of 1.5KE100A 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 is usually 5 days.
3.What payment methods are accepted for 1.5KE100A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE100A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE100A?
1.5KE100A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE100A 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?
For technical support, including 1.5KE100A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE100A requirements.
6.How does Aetrix verify that 1.5KE100A is sourced from the original manufacturer or authorized distributors?
All 1.5KE100A 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 meets industry standards.
7.What is the process for return or replacement of 1.5KE100A?
All 1.5KE100A units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE100A, 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 part is unused and in its original packaging.
Return procedure for 1.5KE100A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE100A Tags
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