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Taiwan Semiconductor Corporation 1.5KE62A
- Part No.:
- 1.5KE62A
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE62A.pdf
- Description:
- TVS 1500W 62V 5% UNIDIR DO-201
- Quantity:
- Payment:
- Shipping:
Inventory:2,738
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Product details
Overview
1.5KE62A from Taiwan Semiconductor is a unidirectional 1500W transient voltage suppressor (TVS) diode with a nominal breakdown voltage of 62V, working stand-off voltage of 53.0V, clamping voltage of 85.0V at 18A peak pulse current, and DO-201 axial package. It protects automotive and industrial power rails against ISO 7637-2 Pulse 1/2a/2b/3a/3b transients.
For engineers reviewing the 1.5KE62A datasheet, 1.5KE62A pinout, 1.5KE62A application, or 1.5KE62A equivalent, this page delivers verified electrical parameters, mechanical package data, real-world protection use cases, and validated alternative parts for ESD and inductive switching surge suppression design.
Technical Context
The 1.5KE62A operates as a unidirectional avalanche diode, triggering at VBR = 58.9–65.1V (tested at 1mA), clamping to ≤85.0V under 18A 10/1000μs surge, with dynamic impedance low enough to sustain 1500W peak pulse power. Its junction temperature range spans −55°C to +175°C, supporting under-hood automotive environments.
It meets AEC-Q101 stress requirements and ISO 7637-2 immunity standards for automotive electronics. Polarity is marked by cathode band; leads are pure tin-plated per J-STD-002, and the DO-201 case complies with UL 94V-0 flammability rating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR @ IT = 1mA | 58.9–65.1V - precise avalanche initiation threshold ensuring reliable turn-on before system damage |
| VWM | 53.0V - maximum continuous reverse operating voltage without leakage exceeding 1µA |
| VC @ IPP = 18A | 85.0V - clamped voltage during full 1500W surge, defining protected circuit's worst-case overvoltage |
| PPK | 1500W - peak pulse power handling at 10/1000μs waveform, critical for load dump and inductive kick survival |
| IPP | 18A - maximum non-repetitive peak current the device safely diverts without degradation |
| Junction Temp Range | −55°C to +175°C - enables deployment in engine control units and powertrain modules |
| Package | DO-201 - axial-leaded, through-hole package with 0.090g mass and UL 94V-0 molding compound |
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, and meet JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Ground reference terminal | Connected to system ground or low-side return path; carries surge current to earth during clamping |
| Cathode | Protected line terminal | Connected to the rail being protected (e.g., 48V battery line); blocks normal operation up to 53.0V, avalanches above 58.9V |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock |
| 1500W surge capability | Withstands ISO 7637-2 Pulse 5a (load dump) up to 100V with 10Ω source impedance |
| Clamping voltage ≤85.0V | Limits downstream IC stress during 18A transient, preserving 48V system logic and gate drivers |
| Fast response time | Sub-nanosecond turn-on (<1ps from 0V to VBR) ensures protection before MOSFET or MCU latch-up |
| Low leakage <1µA @ VWM | Minimizes standby power loss in always-on vehicle networks (e.g., CAN FD wake-up circuits) |
Applications
| Automotive Load Dump Protection | Industrial DC Power Rail Clamping |
|---|---|
Use Scenario: 12V/24V/48V vehicle electrical systems subjected to alternator load dump transients per ISO 7637-2 Pulse 5a. IC Role / Device Role / Timing Role: Unidirectional TVS placed across battery input to absorb >100V spikes within nanoseconds. Use Value: Prevents destruction of PMICs, microcontrollers, and CAN transceivers during engine-off-to-run transitions. | Use Scenario: 48V telecom or server power distribution units exposed to inductive switching noise from relays and solenoids. IC Role / Device Role / Timing Role: Standoff protector on DC output rail, clamping transients before they reach point-of-load regulators. Use Value: Maintains regulated output stability and avoids brownout resets during high-di/dt events. |
| LED Driver Overvoltage Suppression | Motor Control Board ESD Hardening |
Use Scenario: Constant-current LED driver circuits in automotive lighting subjected to ESD and cable discharge events. IC Role / Device Role / Timing Role: Parallel-connected TVS at driver IC input to shunt fast transients before internal FETs fail. Use Value: Enables compliance with IEC 61000-4-2 Level 4 (15kV air/8kV contact) without derating LED lifetime. | Use Scenario: H-bridge motor control PCBs in factory automation encountering EFT bursts and relay coil flyback. IC Role / Device Role / Timing Role: Bidirectional-capable variant (1.5KE62CA) used across bridge supply rails; 1.5KE62A used on single-rail logic supplies. Use Value: Eliminates field failures from 5kHz EFT noise coupling into gate drivers and position feedback 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 SMAJ60A | DO-214AC (SMA) package, 60V VWM, 66.7–73.3V VBR, 87.1V VC @ 17.2A | Surface-mount footprint; lower thermal mass; requires PCB layout revision | Select when board space is constrained and reflow assembly is preferred over through-hole wave soldering. |
| ON Semiconductor 1.5SMC62A | DO-214AB (SMC) package, identical 62V nominal, 58.9–65.1V VBR, 85.0V VC @ 17.6A | Same electrical specs but larger SMC body; higher thermal dissipation margin at TL = 75°C | Select when sustained surge duty cycle exceeds 1x/min and junction temperature rise must be minimized. |
Compared with 1.5KE62A, SMAJ60A offers SMT compatibility at slight VWM reduction and higher clamping, while 1.5SMC62A matches electrical behavior exactly but trades DO-201's compact axial form for enhanced thermal robustness in high-power industrial settings.
Availability
1.5KE62A is available at Aetrix Electronics and suitable for automotive ECU protection, industrial 48V power rail clamping, and LED driver overvoltage suppression requiring stable component supply across multi-year production cycles.
Supply support for 1.5KE62A 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 computing markets since 1979.
The 1.5KE series was designed specifically for high-energy transient suppression in harsh-environment applications-especially automotive power systems requiring AEC-Q101 qualification and ISO 7637-2 compliance.
FAQ
What is the breakdown voltage range of the 1.5KE62A?
The 1.5KE62A has a guaranteed breakdown voltage range of 58.9V to 65.1V at 1mA test current (IT), per Taiwan Semiconductor's official datasheet revision O2104. This VBR window ensures consistent clamping behavior across production lots and supports robust design margins for 48V automotive systems where overvoltage tolerance is tightly specified. The 1.5KE62A's tight VBR distribution minimizes variation in protected circuit stress during surge events.
Is the 1.5KE62A unidirectional or bidirectional?
1.5KE62A is a unidirectional TVS diode, indicated by its "A" suffix and cathode band marking. It conducts only during reverse-biased overvoltage events and blocks forward current like a standard rectifier. For bidirectional protection, the equivalent part is 1.5KE62CA. The 1.5KE62A's unidirectional architecture delivers lower leakage (<1µA at 53.0V) and faster response (<1ps) than bipolar variants, making it ideal for DC power rail clamping where polarity is fixed.
What is the maximum clamping voltage of the 1.5KE62A under surge conditions?
The 1.5KE62A clamps to a maximum of 85.0V at 18A peak pulse current (IPP) with a 10/1000μs waveform. This value is measured per JEDEC standards and defines the upper voltage limit imposed on protected circuitry during worst-case transients. Because the 1.5KE62A maintains this clamping performance across its full operating temperature range (−55°C to +175°C), designers can confidently size downstream components-such as 100V-rated MOSFETs or 85V-input PMICs-without derating for thermal drift.
Does the 1.5KE62A meet automotive qualification standards?
Yes, the 1.5KE62A is AEC-Q101 qualified, as explicitly stated in Taiwan Semiconductor's 1.5KE series documentation. This qualification covers stress tests including high-temperature operating life, temperature cycling, and unbiased highly accelerated stress testing (uHAST). Additionally, the 1.5KE62A meets ISO 7637-2 immunity requirements for Pulses 1, 2a, 2b, 3a, and 3b-making it suitable for front-end protection in engine control units, body controllers, and ADAS domain controllers where reliability under vibration and thermal cycling is mandatory.
What package type does the 1.5KE62A use, and what are its key mechanical properties?
The 1.5KE62A uses the DO-201 axial package: a cylindrical epoxy-molded case with tinned copper leads, cathode band marking, and UL 94V-0 flammability rating. Its mechanical data include 0.090g mass, JESD 201 Class 2 whisker resistance, and solderability compliant with J-STD-002. The DO-201 footprint allows robust through-hole mounting with high mechanical retention-critical for automotive under-hood applications subject to thermal expansion and vibration. Unlike surface-mount alternatives, DO-201 provides superior thermal path to heatsinks via lead bending.
1.5KE62A 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):
- 53V
- Voltage - Breakdown (Min):
- 58.9V
- Voltage - Clamping (Max) @ Ipp:
- 85V
- Current - Peak Pulse (10/1000µs):
- 18A
- 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
1.5KE62A FAQ
1.How can I place an order for 1.5KE62A through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE62A 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 1.5KE62A reliable?
The price and inventory of 1.5KE62A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE62A is usually 5 days.
3.What payment methods are accepted for 1.5KE62A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE62A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE62A?
1.5KE62A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE62A 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 1.5KE62A?
For technical support, including 1.5KE62A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE62A requirements.
6.How does Aetrix verify that 1.5KE62A is sourced from the original manufacturer or authorized distributors?
All 1.5KE62A 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 1.5KE62A meets industry standards.
7.What is the process for return or replacement of 1.5KE62A?
All 1.5KE62A units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE62A, 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 1.5KE62A part is unused and in its original packaging.
Return procedure for 1.5KE62A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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