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Vishay General Semiconductor - Diodes Division 1.5KA10AHE3/54
- Part No.:
- 1.5KA10AHE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KA10AHE3/54.pdf
- Description:
- TVS DIODE 8.55VWM 14.5VC 1.5KA
- Quantity:
- Payment:
- Shipping:
Inventory:9,859
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Product details
Overview
1.5KA10AHE3/54 from Vishay General Semiconductor is an automotive-grade unidirectional transient voltage suppressor (TVS) diode in the 1.5KA case style, rated for 1500 W peak pulse power (10/1000 µs), 10.5 V maximum breakdown voltage, and 14.5 V clamping voltage at 103 A. It operates from −65 °C to +185 °C and is AEC-Q101 qualified for engine control units and powertrain electronics.
For engineers reviewing the 1.5KA10AHE3/54 datasheet, 1.5KA10AHE3/54 pinout, 1.5KA10AHE3/54 application, or 1.5KA10AHE3/54 equivalent, key selection criteria include clamping performance under 10/1000 µs surge, high-temperature reliability up to 185 °C junction, RoHS-compliant matte tin plating, and JESD201 Class 2 whisker resistance.
Technical Context
This TVS diode uses Vishay's patented PAR® construction for stable clamping under repetitive transients and features low incremental surge resistance to minimize voltage overshoot during fast-rising ESD or load-dump events. Its unidirectional polarity and 1.0 mA test current ensure precise breakdown voltage control across temperature.
The device is optimized for automotive environments: AEC-Q101 qualification confirms robustness under thermal cycling, humidity, and mechanical shock; the 185 °C max junction temperature supports placement near high-power modules; and the 10/1000 µs waveform rating aligns with ISO 7637-2 Pulse 1 and Pulse 2b immunity requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (10/1000 µs) | 1500 W - sustains automotive load-dump surges without degradation |
| Breakdown Voltage (VBR) | 9.5–10.5 V at 1.0 mA - ensures reliable turn-on before downstream IC damage |
| Clamping Voltage (VC) | 14.5 V at 103 A - limits protected circuit voltage to safe levels during surge |
| Stand-off Voltage (VWM) | 8.55 V - blocks normal operating voltage while remaining fully off |
| Operating Temperature Range | −65 °C to +185 °C - enables under-hood deployment in modern powertrain systems |
| Surge Current (IPPM) | 103 A - handles ISO 7637-2 Pulse 5a (load dump) with margin |
| Leakage Current (ID) | 20 µA at 8.55 V - negligible standby power loss in always-on vehicle networks |
Pinout & Package
Package: Case Style 1.5KA - molded epoxy body with UL 94 V-0 rating, matte tin-plated leads, cathode indicated by color band. Lead length 9.5 mm (0.375"), diameter 1.07 mm (0.042").
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias; connected to ground or low-side reference | Provides low-impedance path to ground during reverse-biased transient suppression |
| Cathode | Current exit point in forward bias; connected to protected line | Connected to signal/power line being protected; color band identifies this terminal |
Key Features
| Feature | Design Value |
|---|---|
| Patented PAR® construction | Enables consistent clamping performance over 1000+ surge events without parameter drift |
| AEC-Q101 qualification | Validates reliability for automotive powertrain, chassis, and ADAS applications per stress test requirements |
| JESD201 Class 2 whisker resistance | Prevents tin whisker growth under thermal cycling, eliminating latent short-circuit risk |
| 1500 W 10/1000 µs rating | Meets ISO 7637-2 Pulse 5a (load dump) with ≥2× margin at 13.5 V nominal battery |
| 185 °C max junction temperature | Supports direct mounting on high-temperature PCB areas near DC-DC converters or motor drivers |
Applications
| Engine Control Unit (ECU) Power Input Protection | Automotive CAN Transceiver Bus Line Protection |
|---|---|
Use Scenario: Protects 12 V supply rail of engine control units against ISO 7637-2 Pulse 5a load-dump transients up to 35 V. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery input and upstream fuse, clamping surges before LDO regulators. Use Value: Clamps to 14.5 V at 103 A, limiting stress on 16 V-rated input capacitors and preventing brownout-induced MCU resets. | Use Scenario: Shields high-speed CAN FD transceivers (e.g., TCAN1042) from ESD and coupled transients on CAN_H/CAN_L lines. IC Role / Device Role / Timing Role: Bidirectional protection not required; unidirectional 1.5KA10AHE3/54 used on VCC-referenced bus lines where polarity is fixed. Use Value: 14.5 V clamping ensures transceiver common-mode range remains within ±30 V spec while maintaining <1 ns response time. |
| Body Control Module (BCM) Sensor Power Rail | Electric Power Steering (EPS) Motor Driver Gate Supply |
Use Scenario: Guards 5 V/3.3 V sensor supply rails (e.g., for IMU or ambient light sensors) against switching noise from adjacent solenoid drivers. IC Role / Device Role / Timing Role: Placed after local LDO, suppressing sub-µs spikes induced by relay coil de-energization. Use Value: 20 µA leakage at 8.55 V avoids loading low-current sensor bias networks; 185 °C rating allows placement near HVAC actuators. | Use Scenario: Protects isolated gate driver supply (e.g., Si823x secondary side) feeding 650 V IGBT gates in EPS motor inverters. IC Role / Device Role / Timing Role: Mounted directly at gate driver output to clamp Miller-induced voltage spikes during high-di/dt switching. Use Value: Low incremental surge resistance minimizes Vspike overshoot, reducing false turn-on risk and improving IGBT SOA margin. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ10A-E3/5AT | Lower peak power (400 W), SMA package (smaller footprint, lower thermal mass) | Not AEC-Q101 qualified; limited to cabin electronics, not under-hood | Select when space-constrained and thermal stress is low; verify derating at >105 °C ambient |
| 1.5KE10A | Same 1500 W rating but TO-204AA (DO-4) package; no HE3 suffix or JESD201 Class 2 compliance | Lacks automotive qualification and whisker resistance; intended for industrial/commercial use only | Acceptable for non-automotive 12 V systems where AEC-Q101 and long-term whisker risk are not mandated |
Compared with SMAJ10A-E3/5AT and 1.5KE10A, the 1.5KA10AHE3/54 delivers higher thermal robustness (185 °C vs. 150 °C), guaranteed automotive qualification, and proven tin whisker resistance-critical for safety-critical powertrain nodes where field failure is unacceptable.
Availability
1.5KA10AHE3/54 is available at Aetrix Electronics and suitable for engine control units, body control modules, and electric power steering systems requiring stable component supply across extended temperature ranges and automotive lifecycle demands.
Supply support for 1.5KA10AHE3/54 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 designs and manufactures discrete semiconductors including diodes, rectifiers, and TVS devices, with global manufacturing and testing facilities focused on high-reliability applications.
The 1.5KA family was developed specifically for automotive transient suppression, emphasizing AEC-Q101 compliance, high-temperature operation, and robust surge handling in harsh under-hood environments.
FAQ
What is the clamping voltage of the 1.5KA10AHE3/54 at its rated peak pulse current?
The 1.5KA10AHE3/54 has a maximum clamping voltage (VC) of 14.5 V at its rated peak pulse current (IPPM) of 103 A, measured using the standard 10/1000 µs waveform. This value is guaranteed across the full operating temperature range and ensures protected circuits remain within safe voltage margins during automotive load-dump events. The 1.5KA10AHE3/54 achieves this with low incremental surge resistance inherent to its PAR® construction.
Is the 1.5KA10AHE3/54 qualified for automotive use per AEC-Q101?
Yes, the 1.5KA10AHE3/54 is explicitly AEC-Q101 qualified, as confirmed in the Vishay document 88300 revision 20-Oct-08. This qualification covers stress tests including high-temperature operating life, temperature cycling, and unbiased highly accelerated stress testing-validating its suitability for powertrain, chassis, and ADAS applications. The 1.5KA10AHE3/54 carries the "HE3" suffix denoting its high-reliability, automotive-grade status.
What does the "HE3/54" suffix mean in 1.5KA10AHE3/54?
The "HE3" suffix indicates RoHS-compliant, high-reliability, automotive-grade construction meeting AEC-Q101 requirements and JESD201 Class 2 whisker resistance. The "/54" denotes the preferred package code: 13-inch paper tape and reel, 1400 units per reel. This packaging format supports automated SMT placement and ensures traceable, controlled handling for high-volume automotive production. The 1.5KA10AHE3/54 is supplied exclusively in this configuration.
How does the 1.5KA10AHE3/54 differ from the standard 1.5KA10A part?
The 1.5KA10AHE3/54 differs from the base 1.5KA10A by its HE3 suffix, which certifies compliance with RoHS, AEC-Q101, and JESD201 Class 2 whisker resistance-requirements not guaranteed for the non-HE3 variant. Electrically, both share identical VBR, VC, and PPPM ratings, but only the 1.5KA10AHE3/54 is approved for safety-critical automotive applications where long-term tin whisker mitigation is mandatory.
What is the maximum junction temperature rating for the 1.5KA10AHE3/54?
The 1.5KA10AHE3/54 has a maximum junction temperature (TJ) rating of +185 °C, enabling reliable operation in high-heat zones such as near engine control units, transmission control modules, or electric power steering inverters. This rating exceeds standard industrial TVS diodes (typically 150 °C) and is validated per AEC-Q101 thermal stress testing. The 1.5KA10AHE3/54 maintains full electrical specifications up to this limit.
1.5KA10AHE3/54 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- PAR®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 8.55V
- Voltage - Breakdown (Min):
- 9.5V
- Voltage - Clamping (Max) @ Ipp:
- 14.5V
- Current - Peak Pulse (10/1000µs):
- 103A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 185°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 1.5KA
1.5KA10AHE3/54 FAQ
1.How can I place an order for 1.5KA10AHE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KA10AHE3/54 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 1.5KA10AHE3/54 reliable?
The price and inventory of 1.5KA10AHE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KA10AHE3/54 is usually 5 days.
3.What payment methods are accepted for 1.5KA10AHE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KA10AHE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KA10AHE3/54?
1.5KA10AHE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KA10AHE3/54 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 1.5KA10AHE3/54?
For technical support, including 1.5KA10AHE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KA10AHE3/54 requirements.
6.How does Aetrix verify that 1.5KA10AHE3/54 is sourced from the original manufacturer or authorized distributors?
All 1.5KA10AHE3/54 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 1.5KA10AHE3/54 meets industry standards.
7.What is the process for return or replacement of 1.5KA10AHE3/54?
All 1.5KA10AHE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KA10AHE3/54, 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 1.5KA10AHE3/54 part is unused and in its original packaging.
Return procedure for 1.5KA10AHE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KA10AHE3/54 Tags
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