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Taiwan Semiconductor Corporation 1.5KE8.2CA
- Part No.:
- 1.5KE8.2CA
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE8.2CA.pdf
- Description:
- TVS 1500W 8.2V 5% BIDIR DO-201
- Quantity:
- Payment:
- Shipping:
Inventory:2,583
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Product details
Overview
1.5KE8.2CA from Taiwan Semiconductor is a bidirectional 1500W transient voltage suppressor (TVS) in DO-201 package, designed for high-energy surge protection in automotive and industrial power rails. It features a nominal breakdown voltage of 8.2V, clamping voltage of 12.1V at 200A peak impulse current, working stand-off voltage of 7.02V, and meets ISO 7637-2 Pulse 1/2a/2b/3a/3b immunity requirements.
For engineers reviewing the 1.5KE8.2CA datasheet, 1.5KE8.2CA pinout, 1.5KE8.2CA application, or 1.5KE8.2CA equivalent, this device serves as a robust AEC-Q101-qualified bidirectional TVS for ESD and load-dump protection in 12V automotive subsystems, DC power interfaces, and industrial control I/O lines where fast clamping (<5ns response), low leakage (<1µA @ 7.02V), and stable temperature coefficient (0.065%/°C) are critical.
Technical Context
The 1.5KE8.2CA operates as a bidirectional avalanche diode, symmetrically clamping transients in both polarities with identical VBR min/max (7.79–8.61V) and VC (12.1V @ 200A). Its junction structure enables sub-5ns response time and low dynamic impedance, ensuring effective suppression of fast electrical fast transients (EFT) and ISO 7637-2 pulses without forward conduction during normal operation.
Rated for 1500W peak pulse power (10/1000µs waveform), it sustains 200A peak impulse current while maintaining clamping below 12.1V - critical for protecting 5V/3.3V logic interfaces downstream of 12V supply rails. The DO-201 package supports 5W steady-state dissipation at TL = 75°C on 16mm × 16mm copper pad, enabling reliable thermal performance in compact layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR @ IT = 10mA | 7.79–8.61V: Ensures consistent avalanche initiation across production units for predictable clamping onset |
| VWM | 7.02V: Maximum continuous reverse voltage before leakage exceeds 1µA - compatible with 12V nominal systems with margin |
| VC @ IPP = 200A | 12.1V: Clamped voltage during worst-case 10/1000µs surge - protects downstream 15V-rated components |
| PPK | 1500W: Peak surge energy handling per single 10/1000µs pulse - sufficient for ISO 7637-2 Pulse 5a (load dump) |
| IPP max | 200A: Peak impulse current capability - defines minimum trace width and fuse coordination for PCB layout |
| TJ max | +175°C: Extended junction temperature rating enables use in under-hood automotive environments |
| Response time | <5.0ns (bidirectional): Fast enough to suppress EFT bursts (IEC 61000-4-4) before IC damage occurs |
Pinout & Package
Package: DO-201 axial leaded package with cathode band marking (bidirectional symmetry means no polarity dependence; cathode band denotes terminal orientation only).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked end) | Transient return path (bidirectional) | Connected to protected line or ground reference; identical function to cathode in CA devices |
| Cathode (banded end) | Transient return path (bidirectional) | Marked terminal for orientation consistency; electrically symmetric with anode in 1.5KE8.2CA |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and mechanical shock per AEC standard |
| ISO 7637-2 compliance | Tested against Pulse 1 (inductive load disconnect), Pulse 2a/2b (battery interruption), and Pulse 3a/3b (switching transients) |
| Low dynamic impedance | Enables tight clamping window (VC − VBR = ~4.3V) for minimal overvoltage stress on protected ICs |
| Halogen-free & RoHS | Meets IEC 61249-2-21 and EU RoHS Directive - suitable for green manufacturing and export compliance |
| 175°C max junction temp | Supports placement near heat sources (e.g., power converters) without derating in engine-control modules |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Digital Input |
|---|---|
Use Scenario: Protecting LIN bus transceivers and microcontroller GPIOs from battery load dump and alternator ripple in BCM power distribution. IC Role / Device Role / Timing Role: Bidirectional clamping element placed between 12V rail and ground, shunting surges before they reach 5V LDOs and communication ICs. Use Value: Limits transient voltage to ≤12.1V during 200A load dump events, preventing latch-up or gate oxide damage in downstream 15V-tolerant logic. | Use Scenario: Safeguarding 24V digital input channels in programmable logic controllers exposed to relay coil flyback and field wiring ESD. IC Role / Device Role / Timing Role: Primary surge arrestor mounted at connector entry point, operating in parallel with optocoupler input circuitry. Use Value: Clamps 1kV EFT bursts within 5ns to <12.1V, preserving signal integrity and eliminating false triggering in isolated input stages. |
| LED Headlamp Driver Power Stage | Telecom Power Supply Interface |
Use Scenario: Shielding buck controller ICs and MOSFET gates from inductive switching spikes generated by high-current LED strings. IC Role / Device Role / Timing Role: Transient voltage suppressor connected across input capacitor terminals to absorb energy from parasitic inductance. Use Value: Absorbs 1500W surge energy without degradation, maintaining VIN stability and preventing controller reset during PWM dimming transitions. | Use Scenario: Protecting primary-side controller ICs in AC/DC adapters from lightning-induced surges entering via mains input. IC Role / Device Role / Timing Role: Secondary-stage TVS on DC output rail (12V/24V), coordinated with primary MOV and Y-cap filtering. Use Value: Provides precise clamping at 12.1V with <1µA leakage at 7.02V, avoiding standby power loss while meeting IEC 61000-4-5 Level 3 immunity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ8.0CA | 600W rating, SMB package (smaller footprint), lower IPP (100A), VC = 13.6V @ 100A | Lower surge capacity; suited for space-constrained consumer electronics, not automotive load dump | Select when board area is limited and peak surge energy ≤600W; verify thermal relief for SMB mounting |
| 1.5SMC8.2CA | Same 1500W rating and DO-214AB package, VC = 12.3V @ 200A, slightly higher leakage (5µA @ 7.02V) | Surface-mount alternative with identical electrical performance but different thermal profile and reflow compatibility | Choose for automated SMT assembly; requires PCB pad design per JEDEC MO-136 for DO-214AB |
Compared with SMBJ8.0CA and 1.5SMC8.2CA, the 1.5KE8.2CA offers superior thermal mass and axial-leaded mechanical robustness for high-reliability automotive harness connections, while delivering identical clamping performance to 1.5SMC8.2CA in a through-hole format preferred for prototyping and serviceable modules.
Availability
1.5KE8.2CA is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC I/O protection, and LED driver power stages requiring stable component supply, long-term lifecycle support, and AEC-Q101 qualification.
Supply support for 1.5KE8.2CA 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, and rectifiers with global distribution and AEC-Q101 certification capability.
The 1.5KE series was developed specifically for high-energy transient suppression in automotive and industrial 12V/24V systems, emphasizing rugged DO-201 packaging, ISO 7637-2 compliance, and extended temperature operation up to +175°C.
FAQ
What is the clamping voltage of the 1.5KE8.2CA at its rated peak pulse current?
The 1.5KE8.2CA has a maximum clamping voltage (VC) of 12.1V when subjected to its rated peak impulse current of 200A under the standard 10/1000µs waveform. This value is measured per JEDEC test conditions and ensures downstream components see no more than 12.1V during worst-case surge events, making it suitable for protecting 15V-rated ICs in 12V automotive systems.
Is the 1.5KE8.2CA unidirectional or bidirectional, and how does that affect circuit placement?
The 1.5KE8.2CA is a bidirectional TVS diode, indicated by the "CA" suffix, meaning it provides symmetrical clamping in both polarities. Unlike unidirectional types, it requires no orientation during placement - either lead may connect to the protected line or ground. This simplifies layout in AC-coupled or floating-ground applications such as LIN bus or isolated sensor interfaces where polarity reversal is possible.
Does the 1.5KE8.2CA meet AEC-Q101 requirements, and what testing does that include?
Yes, the 1.5KE8.2CA is AEC-Q101 qualified when ordered with the "H" suffix (e.g., 1.5KE8.2CAH). Certification includes stress tests such as high-temperature reverse bias (HTRB), temperature cycling, mechanical shock, and highly accelerated life testing (HALT) to validate reliability for automotive under-hood and chassis applications. Standard 1.5KE8.2CA parts without "H" are not AEC-Q101 certified.
How does the 1.5KE8.2CA compare to the 1.5KE8.2A in terms of electrical performance?
The 1.5KE8.2CA differs from the 1.5KE8.2A in polarity and breakdown tolerance: the "CA" version is bidirectional with VBR = 7.79–8.61V, while the "A" version is unidirectional with tighter VBR tolerance (7.79–8.61V vs. 7.38–9.02V for non-A) but only clamps in one direction. Both share identical PPK (1500W), VC (12.1V/12.5V), and DO-201 packaging - selection depends solely on circuit polarity requirements.
What is the maximum leakage current of the 1.5KE8.2CA at its working stand-off voltage?
The 1.5KE8.2CA exhibits a maximum blocking leakage current (ID) of 1µA at its working stand-off voltage (VWM) of 7.02V, measured at TA = 25°C. This ultra-low leakage ensures negligible standby power draw in always-on automotive modules and prevents false triggering in high-impedance sensing circuits protected by the 1.5KE8.2CA.
1.5KE8.2CA 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):
- 7.02V
- Voltage - Breakdown (Min):
- 7.79V
- Voltage - Clamping (Max) @ Ipp:
- 12.1V
- Current - Peak Pulse (10/1000µs):
- 130A
- 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
1.5KE8.2CA FAQ
1.How can I place an order for 1.5KE8.2CA through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE8.2CA 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 1.5KE8.2CA reliable?
The price and inventory of 1.5KE8.2CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE8.2CA is usually 5 days.
3.What payment methods are accepted for 1.5KE8.2CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE8.2CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE8.2CA?
1.5KE8.2CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE8.2CA 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 1.5KE8.2CA?
For technical support, including 1.5KE8.2CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE8.2CA requirements.
6.How does Aetrix verify that 1.5KE8.2CA is sourced from the original manufacturer or authorized distributors?
All 1.5KE8.2CA 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 1.5KE8.2CA meets industry standards.
7.What is the process for return or replacement of 1.5KE8.2CA?
All 1.5KE8.2CA units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE8.2CA, 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 1.5KE8.2CA part is unused and in its original packaging.
Return procedure for 1.5KE8.2CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE8.2CA Tags
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