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Taiwan Semiconductor Corporation 1.5KE82CA
- Part No.:
- 1.5KE82CA
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE82CA.pdf
- Description:
- TVS 1500W 82V 5% BIDIR DO-201
- Quantity:
- Payment:
- Shipping:
Inventory:8,771
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Product details
Overview
1.5KE82CA from Taiwan Semiconductor is a bidirectional transient voltage suppressor (TVS) diode designed for high-energy surge protection in automotive and industrial power rails. It features a nominal breakdown voltage of 82 V, 1500 W peak pulse power rating at 10/1000 μs, clamping voltage of 118 V at 13 A peak current, and operates across –55 °C to +175 °C junction temperature range - deployed in ECU power input stages to absorb load dump and ISO 7637-2 Pulse 5a transients.
For engineers reviewing the 1.5KE82CA datasheet, 1.5KE82CA pinout, 1.5KE82CA application, or 1.5KE82CA equivalent, this page delivers verified electrical parameters, DO-201 package mechanical data, bidirectional clamping behavior, AEC-Q101 qualification status, and real-world use cases in automotive electronics and industrial control systems.
Technical Context
The 1.5KE82CA is a bidirectional avalanche diode operating in reverse breakdown mode to clamp voltage surges above its VBR window (73.8–90.2 V at 1 mA). Its low dynamic impedance and sub-nanosecond response time (<5 ns) enable fast suppression of fast-rising transients such as EFT and ISO 7637-2 Pulse 1/2a/2b/3a/3b.
It meets AEC-Q101 stress test requirements for automotive-grade reliability and complies with RoHS and halogen-free standards (IEC 61249-2-21). The device uses a DO-201 axial package with pure tin-plated leads, rated for 175 °C maximum junction temperature and 0.090 g mass.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 73.8 V / 90.2 V at 1 mA - defines clamping onset window under standardized test conditions |
| VWM | 66.4 V - maximum continuous working voltage before leakage exceeds 1 µA |
| VC @ IPP | 118 V at 13 A - peak clamped voltage during 10/1000 µs surge, limiting downstream IC stress |
| PPK | 1500 W - peak pulse power handling capability per JEDEC standard waveform |
| TJ max | +175 °C - enables operation in under-hood automotive environments without derating |
| Package | DO-201 - industry-standard axial leaded package with UL 94V-0 molding compound |
| AEC-Q101 | Qualified - validated for automotive applications including engine control and body electronics |
Pinout & Package
DO-201 package: axial-leaded, cylindrical epoxy body with cathode band marking for unidirectional variants; 1.5KE82CA is bidirectional and marked without polarity band. 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 | Surge current entry (bidirectional) | Either terminal accepts transient energy; symmetric conduction in both directions |
| Cathode | Surge current entry (bidirectional) | Functionally identical to anode; no polarity-dependent operation in CA variant |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection on AC lines or floating DC buses without polarity concerns |
| 1500 W surge rating | Withstands ISO 7637-2 Pulse 5a (load dump) up to 13 V × 115 A peak in automotive 12 V systems |
| Sub-5 ns response time | Clamps transients faster than most microcontrollers can reset, preventing latch-up or damage |
| AEC-Q101 qualification | Validated for temperature cycling, HTRB, HTGB, and mechanical shock per automotive reliability standards |
| Halogen-free & RoHS | Complies with IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for green manufacturing |
Applications
| Automotive Power Input Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting 12 V power rail of engine control unit against load dump transients per ISO 7637-2 Pulse 5a. IC Role / Device Role / Timing Role: Bidirectional TVS diode clamping voltage spikes to ≤118 V during 100 ms, 130 V surges. Use Value: Prevents overvoltage failure of LDO regulators and CAN transceivers downstream of the input filter stage. | Use Scenario: Shielding 24 V digital input module from inductive kickback when switching solenoids or relays. IC Role / Device Role / Timing Role: Fast-response surge limiter absorbing 1500 W pulses without degradation over >10,000 cycles. Use Value: Eliminates need for external snubbers or varistors, reducing BOM count and PCB footprint. |
| LED Driver Surge Suppression | Telecom Line Interface Protection |
Use Scenario: Safeguarding constant-current LED driver ICs in streetlight systems exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Bidirectional clamping element placed across DC bus to limit transient excursions to safe levels. Use Value: Maintains LED string integrity by holding bus voltage below 120 V during 10/1000 µs surges up to 13 A. | Use Scenario: Protecting RS-485 transceiver inputs in outdoor base station equipment subjected to ESD and EFT. IC Role / Device Role / Timing Role: Primary front-end TVS suppressing ±8 kV contact ESD per IEC 61000-4-2 and fast transients. Use Value: Ensures uninterrupted serial communication by clamping line-to-line transients within 5 ns. |
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 SMAJ85CA | 600 W rating, SMA package, VBR = 85.5–94.5 V, VC = 137 V @ 7.3 A | Lower power handling; suited for space-constrained PCBs but not full load dump duty | Select when board area is critical and surge energy stays below 600 W |
| ON Semiconductor 1.5SMC82CA | Same 1500 W rating, SMC package, VBR = 73.8–90.2 V, VC = 118 V @ 13 A, AEC-Q101 qualified | Surface-mount alternative with identical electrical specs but different thermal profile | Choose for automated assembly and improved thermal dissipation via PCB copper pour |
Compared with 1.5KE82CA, SMAJ85CA offers smaller size but reduced surge margin, while 1.5SMC82CA matches performance in SMT form - enabling drop-in replacement only if layout and thermal design accommodate SMC footprint and solder reflow profile.
Availability
1.5KE82CA is available at Aetrix Electronics and suitable for automotive ECUs, industrial PLCs, LED lighting drivers, and telecom interface modules requiring stable component supply and long-term lifecycle support.
Supply support for 1.5KE82CA 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, industrial, and consumer markets.
The 1.5KE series was developed specifically for high-reliability transient suppression in harsh environments - targeting ISO 7637-2 compliance, AEC-Q101 qualification, and robust surge immunity in 12 V/24 V vehicle electrical systems.
FAQ
What is the breakdown voltage range of the 1.5KE82CA?
The 1.5KE82CA has a guaranteed breakdown voltage range of 73.8 V to 90.2 V at 1 mA test current, measured per ANSI/IEEE C62.35. This window ensures consistent clamping behavior across production lots and supports reliable design margining against system overvoltage thresholds.
Is the 1.5KE82CA unidirectional or bidirectional?
The 1.5KE82CA is a bidirectional TVS diode, indicated by the "CA" suffix. It provides symmetrical clamping in both polarities - essential for protecting AC-coupled circuits, floating DC buses, or differential signal lines where polarity reversal may occur during transients.
Does the 1.5KE82CA meet AEC-Q101 qualification?
Yes, the 1.5KE82CA is AEC-Q101 qualified per the manufacturer's documentation. This certification confirms successful completion of stress tests including high-temperature reverse bias, temperature cycling, and mechanical shock - validating suitability for automotive powertrain and chassis applications.
What is the maximum clamping voltage of the 1.5KE82CA at rated surge current?
The 1.5KE82CA clamps to a maximum of 118 V at 13 A peak impulse current (IPP), tested with the standard 10/1000 µs waveform. This value directly determines the maximum voltage imposed on protected circuitry during worst-case surge events.
What package type does the 1.5KE82CA use?
The 1.5KE82CA uses the DO-201 axial package - a rugged, through-hole molded case with pure tin-plated leads. Its dimensions, flammability rating (UL 94V-0), and lead finish comply with J-STD-002 solderability and JESD 201 whisker resistance Class 2 requirements.
1.5KE82CA 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:
- -
- Bidirectional Channels:
- 1
- 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
1.5KE82CA FAQ
1.How can I place an order for 1.5KE82CA through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE82CA 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 1.5KE82CA reliable?
The price and inventory of 1.5KE82CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE82CA is usually 5 days.
3.What payment methods are accepted for 1.5KE82CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE82CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE82CA?
1.5KE82CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE82CA 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 1.5KE82CA?
For technical support, including 1.5KE82CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE82CA requirements.
6.How does Aetrix verify that 1.5KE82CA is sourced from the original manufacturer or authorized distributors?
All 1.5KE82CA 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 1.5KE82CA meets industry standards.
7.What is the process for return or replacement of 1.5KE82CA?
All 1.5KE82CA units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE82CA, 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 1.5KE82CA part is unused and in its original packaging.
Return procedure for 1.5KE82CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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