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Taiwan Semiconductor Corporation 1.5KE82A
- Part No.:
- 1.5KE82A
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE82A.pdf
- Description:
- TVS 1500W 82V 5% UNIDIR DO-201
- Quantity:
- Payment:
- Shipping:
Inventory:9,550
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Product details
Overview
1.5KE82A from Taiwan Semiconductor is a unidirectional 1500W transient voltage suppressor (TVS) diode with a nominal breakdown voltage of 82V, minimum VBR of 77.9V at 1mA test current, maximum clamping voltage of 113V at 13.9A peak pulse current, and DO-201 axial package. It protects automotive power electronics and industrial control inputs against ISO 7637-2 Pulse 1/2a/2b/3a/3b transients.
For engineers reviewing the 1.5KE82A datasheet, 1.5KE82A pinout, 1.5KE82A application, or 1.5KE82A equivalent, key selection criteria include its 113V clamping performance at 13.9A, 70.1V working stand-off voltage, <1μA leakage above 10V, AEC-Q101 qualification option (H suffix), and DO-201 mechanical compatibility with legacy 1N6293A designs.
Technical Context
This unidirectional TVS diode operates as a voltage-clamped shunt protector: it remains high-impedance below 70.1V (VWM) and rapidly avalanches to clamp transients up to 1500W (10/1000μs waveform). Its junction temperature range spans −55°C to +175°C, supporting under-hood automotive environments.
Clamping response is characterized by sub-1ps rise time from 0V to VBR, low dynamic impedance enabling effective suppression of fast EFT bursts, and thermal derating per Fig.2 - delivering 1500W only at TA = 25°C, dropping to ~750W at 75°C ambient without heatsink.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 70.1 V - Maximum continuous reverse operating voltage before significant leakage begins; defines safe DC bias margin. |
| VBR @ IT=1mA | 77.9–86.1 V - Breakdown voltage range at 1mA test current; ensures reliable avalanche initiation within spec. |
| VC @ IPP=13.9A | 113 V - Maximum clamped voltage during 10/1000μs surge; determines protected circuit's peak stress level. |
| PPK | 1500 W - Peak pulse power handling (10/1000μs); defines transient energy absorption capacity. |
| IPP | 13.9 A - Peak impulse current corresponding to VC; used for PCB trace sizing and fuse coordination. |
| Junction Temp Range | −55°C to +175°C - Enables deployment in engine control units, motor drives, and industrial power supplies. |
| Leakage @ VWM | <1 μA - Minimal standby power loss and signal integrity impact in high-impedance sensing circuits. |
Pinout & Package
Package: DO-201 axial leaded case with cathode band marking; RoHS-compliant pure tin plating; UL 94V-0 molding compound; 0.090g mass; meets JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to system ground or lower-potential rail in unidirectional configuration. |
| Cathode (banded end) | Reverse-biased clamping terminal | Connected to protected line (e.g., 12V supply rail); avalanche occurs when voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| 1500W surge rating (10/1000μs) | Enables protection against severe load dump and inductive switching events in 12V/24V automotive systems. |
| Clamping voltage ≤113V at 13.9A | Limits downstream IC stress to safe levels for 80V-rated power management ICs and microcontrollers. |
| Response time <1ps (0V to VBR) | Provides effective suppression of nanosecond-scale ESD and EFT pulses before sensitive logic is disturbed. |
| AEC-Q101 qualified variant available | Supports automotive-grade reliability requirements including temperature cycling, HTRB, and mechanical shock testing. |
| Meets ISO 7637-2 Pulse 1/2a/2b/3a/3b | Validated for real-world automotive transient immunity compliance without additional external filtering. |
Applications
| Automotive Power Line Protection | Industrial PLC Input Protection |
|---|---|
Use Scenario: 12V battery feed to body control module exposed to load dump (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between power rail and chassis ground to clamp overvoltage transients. Use Value: Limits peak rail voltage to ≤113V during 1500W surges, preventing damage to 16V-input PMICs and CAN transceivers. | Use Scenario: 24V DC input stage of programmable logic controller subjected to relay coil flyback and EFT bursts. IC Role / Device Role / Timing Role: Primary overvoltage clamp on field-side power entry, upstream of input filter and regulator. Use Value: Absorbs 13.9A transient currents while maintaining <1μA leakage, preserving signal integrity of analog sensor inputs. |
| LED Driver Overvoltage Clamp | DC Motor Control Board Surge Suppression |
Use Scenario: Constant-current LED driver board powered from 48V bus, vulnerable to back-EMF from nearby solenoid switching. IC Role / Device Role / Timing Role: Standoff protector across driver input terminals to prevent latch-up or gate oxide rupture in MOSFET controllers. Use Value: Clamps 10/1000μs transients to 113V within 1ps, protecting 60V-rated buck controller ICs without adding series impedance. | Use Scenario: H-bridge motor driver PCB where MOSFET body diodes cannot fully suppress inductive kickback from 24V brushed motors. IC Role / Device Role / Timing Role: Secondary clamping device across power rails, supplementing internal FET protection. Use Value: Handles 1500W single-event surges without degradation, extending board lifetime in factory automation equipment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMCJ82A | Surface-mount SMC package (vs. DO-201 axial); identical 82V nominal, 113V VC, but 1500W rating at 10/1000μs same. | Requires PCB redesign for SMD placement; better high-frequency ESD response due to lower parasitic inductance. | Select for space-constrained or automated assembly designs where through-hole is not feasible. |
| 1N6293A | Same JEDEC type number; identical electrical specs (73.8–90.2V VBR, 118V VC), but 1.5KE82A has tighter VBR (77.9–86.1V) and lower VC (113V). | No change in circuit function or layout; direct replacement with improved clamping margin. | Choose 1.5KE82A when lower clamping voltage and tighter VBR tolerance are required for robustness-critical designs. |
Compared with 1N6293A, the 1.5KE82A offers 5V lower clamping voltage and ±4% VBR tolerance versus ±8%, improving design margin for 80V-rated ICs; versus SMCJ82A, it retains axial mounting compatibility but trades off higher parasitic inductance for mechanical ruggedness and serviceability.
Availability
1.5KE82A is available at Aetrix Electronics and suitable for automotive power line protection, industrial PLC input stages, LED driver overvoltage clamping, and DC motor control board surge suppression requiring stable component supply across production lifecycles.
Supply support for 1.5KE82A 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 thyristors, with global distribution and AEC-Q101 qualified product lines.
The 1.5KE series was designed specifically for high-energy transient suppression in automotive and industrial power systems, emphasizing robust clamping performance, wide temperature operation, and compliance with ISO 7637-2 and AEC-Q101 standards.
FAQ
What is the clamping voltage of the 1.5KE82A under a 10/1000μs surge?
The 1.5KE82A clamps to a maximum of 113 V when subjected to a 10/1000μs waveform at its rated peak pulse current of 13.9 A. This value is measured per standard IEC 61000-4-5 and ANSI/IEEE C62.35 definitions, and represents the upper limit of voltage seen by downstream circuitry during surge events. The 1.5KE82A achieves this clamping performance while maintaining low dynamic impedance and sub-1ps response time.
Is the 1.5KE82A unidirectional or bidirectional?
1.5KE82A is a unidirectional transient voltage suppressor diode, indicated by its absence of "CA" suffix and specification of forward voltage (VF = 3.5 V @ 50 A) in the datasheet. It conducts only in reverse breakdown mode to clamp positive transients on a line referenced to ground; for bidirectional protection, the 1.5KE82CA variant must be selected. The 1.5KE82A cathode band denotes the terminal to be connected to the protected line.
Does the 1.5KE82A meet automotive qualification standards?
The base 1.5KE82A is not AEC-Q101 qualified; however, the variant 1.5KE82AH (with "H" suffix) is explicitly AEC-Q101 qualified and listed in the ordering information table. Both share identical electrical parameters, but the "H" version undergoes extended reliability testing including temperature cycling, high-temperature reverse bias, and mechanical shock. For automotive production, specify 1.5KE82AH to ensure compliance.
What is the working stand-off voltage (VWM) of the 1.5KE82A?
The working stand-off voltage (VWM) of the 1.5KE82A is 70.1 V - the maximum DC or continuous peak voltage that can be applied without exceeding the specified leakage current of <1 μA. This value is derived from the 82 V nominal rating and ensures sufficient margin below the minimum breakdown voltage (77.9 V), allowing reliable operation in 60–72 V nominal systems such as commercial vehicle 24V architectures.
Can the 1.5KE82A replace the older 1N6293A in existing designs?
Yes, the 1.5KE82A is a direct form-fit-function replacement for 1N6293A in DO-201 socketed or through-hole layouts, with identical pinout, package dimensions, and soldering requirements. Electrically, it improves upon 1N6293A with tighter VBR tolerance (77.9–86.1 V vs. 73.8–90.2 V) and lower clamping voltage (113 V vs. 118 V), enhancing protection margin without any PCB or schematic changes. The 1.5KE82A retains full compatibility with legacy 1N6293A designs.
1.5KE82A 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):
- 70.1V
- Voltage - Breakdown (Min):
- 77.9V
- Voltage - Clamping (Max) @ Ipp:
- 113V
- Current - Peak Pulse (10/1000µs):
- 13.9A
- 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
1.5KE82A FAQ
1.How can I place an order for 1.5KE82A through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE82A 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 1.5KE82A reliable?
The price and inventory of 1.5KE82A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE82A is usually 5 days.
3.What payment methods are accepted for 1.5KE82A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE82A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE82A?
1.5KE82A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE82A 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 1.5KE82A?
For technical support, including 1.5KE82A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE82A requirements.
6.How does Aetrix verify that 1.5KE82A is sourced from the original manufacturer or authorized distributors?
All 1.5KE82A 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 1.5KE82A meets industry standards.
7.What is the process for return or replacement of 1.5KE82A?
All 1.5KE82A units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE82A, 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 1.5KE82A part is unused and in its original packaging.
Return procedure for 1.5KE82A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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