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Vishay General Semiconductor - Diodes Division 1.5KE12CAHE3_A/C
- Part No.:
- 1.5KE12CAHE3_A/C
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE12CAHE3_A/C.pdf
- Description:
- TVS DIODE 10.2VWM 16.7VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:9,719
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Product details
Overview
1.5KE12CAHE3_A/C from Vishay General Semiconductor is a bidirectional Transient Voltage Suppressor (TVS) diode designed for robust overvoltage protection in signal and power lines. It features a 12 V nominal breakdown voltage (VBR = 11.4–12.6 V at 1 mA), 1500 W peak pulse power (10/1000 µs), clamping voltage of 16.7 V at 89.8 A, and operates across –55 °C to +175 °C junction temperature. It is used to protect MOSFETs, ICs, and sensor interfaces against lightning-induced surges and inductive switching transients.
For engineers reviewing the 1.5KE12CAHE3_A/C datasheet, 1.5KE12CAHE3_A/C pinout, 1.5KE12CAHE3_A/C application, or 1.5KE12CAHE3_A/C equivalent, this page delivers verified electrical specs, JEDEC 1.5KE package details, bidirectional clamping behavior, AEC-Q101 qualification status, and real-world protection use cases - all confirmed from Vishay's official 88301 datasheet revision 09-Aug-2022.
Technical Context
This device implements a glass-passivated silicon p-n junction optimized for fast transient response (<1 ns) and low incremental surge resistance. Its bidirectional architecture enables symmetrical clamping in both polarities without polarity marking, making it suitable for AC-coupled or floating signal paths.
It complies with JEDEC standard test conditions (10/1000 µs waveform, 0.01% duty cycle), supports 1500 W peak pulse power, and maintains stable clamping performance up to 175 °C junction temperature - critical for automotive and industrial environments where thermal derating must be precisely modeled.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 11.4 V / 12.6 V at IT = 1 mA - defines precise voltage threshold at which clamping initiates under controlled test current |
| VWM | 10.2 V - maximum continuous reverse working voltage before leakage exceeds 5 µA; sets safe operating margin below breakdown |
| VC @ IPPM | 16.7 V at 89.8 A - clamped voltage during full 1500 W transient event; determines protected circuit's maximum stress level |
| PPPM | 1500 W - peak pulse power handling per 10/1000 µs waveform; defines surge energy absorption capability |
| IPPM | 89.8 A - peak pulse current corresponding to 1500 W clamping; used for PCB trace sizing and fuse coordination |
| TJ range | –55 °C to +175 °C - extended junction temperature rating enables deployment in under-hood automotive or high-ambient industrial settings |
| AEC-Q101 | Qualified - certified for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC specification |
Pinout & Package
Package: JEDEC-standard Case Style 1.5KE - molded epoxy body with matte tin-plated leads, UL 94 V-0 rated, RoHS compliant, and qualified to JESD 22-B102 solderability standards. Lead length 0.375" (9.5 mm); thermal resistance RθJL = 15.4 °C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (bidirectional) | Reversible terminals | No polarity marking; symmetric conduction in both directions - simplifies layout for AC or differential lines |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable long-term leakage performance and high reliability under humidity and thermal stress |
| 1500 W peak pulse power (10/1000 µs) | Supports IEC 61000-4-5 Level 4 surge immunity (4 kV line-to-line) when properly mounted with low-inductance layout |
| Clamping time < 1 ns | Protects sub-microsecond-sensitive logic and analog front-ends before damage occurs |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive applications including engine control units, ADAS sensors, and infotainment power rails |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ISO 7637-2 pulse 1/2a/5a), improving protection margin |
Applications
| Automotive Sensor Interface Protection | Industrial PLC Analog Input Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and ESD events in vehicle ECUs. IC Role / Device Role: Bidirectional TVS placed across differential signal pair or supply rail to clamp transients before reaching sensitive interface ICs. Use Value: Prevents latch-up or gate oxide rupture in transceivers by limiting voltage to ≤16.7 V during 89.8 A surge - within absolute max ratings of most automotive-grade ICs. |
Use Scenario: Safeguarding 4–20 mA current loop inputs and ±10 V analog inputs in programmable logic controllers exposed to field wiring surges. IC Role / Device Role: Primary overvoltage clamp on input terminals, coordinated with series current-limiting resistors and filtering capacitors. Use Value: Maintains signal integrity by suppressing transients up to 1500 W without degradation - validated for repeated surge exposure per IEC 61000-4-5. |
| Telecom Line Card Surge Protection | Consumer Power Adapter Output Clamping |
Use Scenario: Front-end protection for DSL, POTS, or Ethernet PHY interfaces subjected to lightning-induced surges on outdoor copper lines. IC Role / Device Role: First-stage TVS on line side of isolation transformer or common-mode choke to divert bulk surge energy. Use Value: Withstands 10/1000 µs surges up to 89.8 A while maintaining <5 µA leakage at 10.2 V - preserving low-noise line signaling. |
Use Scenario: Secondary-side output clamping in AC/DC adapters to prevent overvoltage damage to downstream USB-PD or charging ICs during regulation fault. IC Role / Device Role: Parallel-connected TVS across regulated DC output (e.g., 12 V rail) to clamp regulator failure or capacitor discharge spikes. Use Value: Fast 16.7 V clamping ensures connected devices remain within safe operating area even during sustained overvoltage events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ12CA | Same 12 V VBR, but lower 600 W PPPM; SMC package (smaller footprint, higher thermal resistance) | Preferred for space-constrained consumer electronics; not rated for AEC-Q101 | Select SMBJ12CA only if surge energy requirements are ≤600 W and automotive qualification is unnecessary. |
| 1.5KE12CAHE3_B | Identical electrical specs and AEC-Q101 qualification; differs only in revision code ("B" vs "A/C") and tape-and-reel packaging configuration | No functional or application difference; compatible in same PCB footprints and thermal designs | 1.5KE12CAHE3_B is a direct manufacturing revision variant - suitable for BOM continuity where "A/C" is unavailable. |
Compared with 1.5KE12CAHE3_A/C, SMBJ12CA offers smaller size but sacrifices 60% surge power handling and automotive qualification, while 1.5KE12CAHE3_B provides identical protection performance with minor packaging revision - making it the safest drop-in alternative for production continuity.
Availability
1.5KE12CAHE3_A/C is available at Aetrix Electronics and suitable for automotive ECU design, industrial PLC input conditioning, telecom line card development, and consumer power adapter safety certification requiring stable component supply and long-term lifecycle support.
Supply support for 1.5KE12CAHE3_A/C 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
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in high-reliability diodes, MOSFETs, optoelectronics, and passive components for demanding industrial and automotive applications.
The 1.5KE series was engineered specifically for high-energy transient suppression in harsh environments - delivering consistent 1500 W surge capability, AEC-Q101 qualification, and extended temperature operation to meet Tier-1 automotive and industrial equipment requirements.
FAQ
What is the exact breakdown voltage range for 1.5KE12CAHE3_A/C?
The 1.5KE12CAHE3_A/C has a guaranteed breakdown voltage (VBR) range of 11.4 V to 12.6 V at a test current of 1 mA, per Vishay's Document Number 88301. This tight tolerance ensures predictable clamping onset and compatibility with 12 V system rails. The device is bidirectional, so this range applies identically in both polarities - critical for protecting AC-coupled or floating circuits without polarity concerns. All values are measured at TA = 25 °C and confirmed in the official datasheet's Electrical Characteristics table.
Is 1.5KE12CAHE3_A/C AEC-Q101 qualified?
Yes, 1.5KE12CAHE3_A/C is AEC-Q101 qualified, as explicitly stated in Vishay's datasheet (Document Number 88301, Revision 09-Aug-2022) under "RATINGS AND CHARACTERISTICS CURVES" footnote (2). The HE3 suffix denotes RoHS compliance and AEC-Q101 qualification for the full 1.5KE6.8CAHE3_B through 1.5KE220CAHE3_B family - and 1.5KE12CAHE3_A/C falls within that qualified range. This qualification covers stress tests including HTGB, H3TRB, and temperature cycling, validating its use in automotive powertrain and chassis modules.
What does the "CA" suffix mean in 1.5KE12CAHE3_A/C?
The "CA" suffix in 1.5KE12CAHE3_A/C indicates a bidirectional Transient Voltage Suppressor - meaning the device functions identically in both forward and reverse bias, with no cathode marking required. Per Vishay's datasheet, CA-suffix parts are designed for applications where voltage transients can occur with either polarity, such as AC signal lines, differential buses (e.g., RS-485), or ungrounded power rails. This contrasts with "A"-suffix unidirectional parts, which require correct polarity orientation and feature a cathode band marking.
What is the clamping voltage of 1.5KE12CAHE3_A/C at its rated peak pulse current?
The clamping voltage (VC) of 1.5KE12CAHE3_A/C is 16.7 V at its peak pulse current (IPPM) of 89.8 A, measured using the standard 10/1000 µs waveform. This value is specified in the "ELECTRICAL CHARACTERISTICS" table of Vishay's 88301 datasheet and represents the maximum voltage seen across the device during a full 1500 W transient event. Designers use this parameter to verify that downstream components remain within their absolute maximum voltage ratings under worst-case surge conditions.
Can 1.5KE12CAHE3_A/C be used in place of a unidirectional TVS like 1.5KE12AHE3_A/C?
No - 1.5KE12CAHE3_A/C is strictly bidirectional and cannot substitute for unidirectional parts like 1.5KE12AHE3_A/C in circuits requiring polarity-specific clamping, such as DC power rail protection with defined anode/cathode orientation. While both share identical VBR and PPPM, the unidirectional version has a cathode band and conducts only in reverse bias, whereas the CA version clamps symmetrically. Substitution would risk improper protection or excessive leakage in DC-biased applications unless the circuit topology explicitly supports bidirectional operation.
1.5KE12CAHE3_A/C Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 10.2V
- Voltage - Breakdown (Min):
- 11.4V
- Voltage - Clamping (Max) @ Ipp:
- 16.7V
- Current - Peak Pulse (10/1000µs):
- 89.8A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 1.5KE
1.5KE12CAHE3_A/C FAQ
1.How can I place an order for 1.5KE12CAHE3_A/C through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE12CAHE3_A/C 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 1.5KE12CAHE3_A/C reliable?
The price and inventory of 1.5KE12CAHE3_A/C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE12CAHE3_A/C is usually 5 days.
3.What payment methods are accepted for 1.5KE12CAHE3_A/C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE12CAHE3_A/C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE12CAHE3_A/C?
1.5KE12CAHE3_A/C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE12CAHE3_A/C 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 1.5KE12CAHE3_A/C?
For technical support, including 1.5KE12CAHE3_A/C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE12CAHE3_A/C requirements.
6.How does Aetrix verify that 1.5KE12CAHE3_A/C is sourced from the original manufacturer or authorized distributors?
All 1.5KE12CAHE3_A/C 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 1.5KE12CAHE3_A/C meets industry standards.
7.What is the process for return or replacement of 1.5KE12CAHE3_A/C?
All 1.5KE12CAHE3_A/C units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE12CAHE3_A/C, 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 1.5KE12CAHE3_A/C part is unused and in its original packaging.
Return procedure for 1.5KE12CAHE3_A/C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE12CAHE3_A/C Tags
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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