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Vishay General Semiconductor - Diodes Division 1.5KA10AHE3/73
- Part No.:
- 1.5KA10AHE3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KA10AHE3/73.pdf
- Description:
- TVS DIODE 8.55VWM 14.5VC 1.5KA
- Quantity:
- Payment:
- Shipping:
Inventory:9,285
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Product details
Overview
1.5KA10AHE3/73 from Vishay General Semiconductor is an automotive-grade unidirectional transient voltage suppressor (TVS) diode designed for high-reliability inductive load switching protection. It delivers 1500 W peak pulse power (10/1000 µs), clamps at 14.5 V under 103 A surge, and operates up to +185 °C junction temperature-ideal for safeguarding MOSFETs and sensor signal lines in automotive powertrain control units.
For engineers reviewing the 1.5KA10AHE3/73 datasheet, 1.5KA10AHE3/73 pinout, 1.5KA10AHE3/73 application, or 1.5KA10AHE3/73 equivalent, key selection criteria include its AEC-Q101 qualification, 9.5–10.5 V breakdown range at 1 mA, 8.55 V stand-off voltage, ≤20 µA leakage at TJ = 150 °C, and low 0.073 %/°C VBR temperature coefficient.
Technical Context
This TVS diode uses Vishay's patented PAR® construction with a molded epoxy body and passivated junction, enabling stable clamping performance under high-temperature automotive conditions (−65 °C to +185 °C). Its unidirectional polarity and fast response time ensure reliable suppression of inductive kickback transients on DC power rails and low-voltage signal paths.
The device is rated for 200 A non-repetitive forward surge current (8.3 ms half-sine), exhibits 3.5 V max forward voltage at 100 A, and maintains low incremental surge resistance-critical for minimizing voltage overshoot during ESD and load-dump events in 12 V vehicle electrical systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (10/1000 µs) | 1500 W - sustains automotive load-dump surges without failure |
| Breakdown Voltage VBR | 9.5–10.5 V at 1 mA - defines precise clamping onset threshold |
| Stand-off Voltage VWM | 8.55 V - ensures no conduction during normal 12 V system operation |
| Max Clamping Voltage VC | 14.5 V at 103 A - limits protected circuit voltage during worst-case surge |
| Junction Temp Range | −65 °C to +185 °C - supports under-hood placement in AEC-Q101 applications |
| Leakage Current ID | ≤20 µA at VWM, TJ = 150 °C - prevents battery drain in always-on modules |
| Temp Coefficient of VBR | 0.073 %/°C - enables predictable clamping shift across engine bay temperatures |
Pinout & Package
Package: Case Style 1.5KA - axial-leaded, molded epoxy body (UL 94 V-0), matte tin-plated leads compliant with J-STD-002 and JESD22-B102; cathode denoted by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to ground or low-side return path in unidirectional clamp configuration |
| Cathode | Current exit point; marked with color band | Connected to protected line (e.g., 12 V rail or sensor output) to shunt surge to ground |
Key Features
| Feature | Design Value |
|---|---|
| Patented PAR® construction | Enables stable clamping and low dynamic impedance under repeated surge stress |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive under-hood use with JESD201 Class 2 whisker resistance |
| 1500 W peak pulse power | Meets ISO 7637-2 Pulse 5a/b (load dump) requirements for 12 V systems |
| Fast response time & low VF | Clamps within picoseconds; 3.5 V max forward voltage minimizes conduction loss |
| RoHS-compliant, UL 94 V-0 molding | Supports environmentally regulated production and flame-retardant board mounting |
Applications
| Automotive Powertrain Control | Industrial Motor Drive Protection |
|---|---|
Use Scenario: Suppressing inductive kickback from fuel injector solenoids and ignition coils in engine control modules. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed across coil terminals to clamp reverse EMF spikes. Use Value: Prevents gate oxide damage to driving MOSFETs by limiting voltage to 14.5 V during 103 A transients. |
Use Scenario: Protecting gate drivers and microcontrollers from flyback voltage in 24 V DC motor H-bridges. IC Role / Device Role / Timing Role: Standoff-clamp TVS connected between motor supply rail and ground. Use Value: Maintains 8.55 V stand-off while clamping to 14.5 V-ensuring logic-level compatibility and preventing latch-up. |
| Automotive Sensor Signal Lines | Telecom Power Input Stage |
Use Scenario: Shielding LIN bus and analog sensor outputs (e.g., throttle position, coolant temp) from battery transients. IC Role / Device Role / Timing Role: Low-leakage TVS (≤20 µA at 150 °C) placed at connector interface. Use Value: Enables reliable operation over full automotive temperature range without signal distortion or bias drift. |
Use Scenario: Front-end surge protection for 12 V telecom power supplies exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Primary clamping device before DC-DC converter input stage. Use Value: Absorbs 1500 W pulses per IEC 61000-4-5 Level 4 without degradation-verified per Fig. 1 derating curve. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ10AHE3/52 | Lower peak power (600 W), same VBR range, SMC package (surface-mount) | Not AEC-Q101 qualified; suited for non-automotive industrial PCBs with space constraints | Select when board area is limited and automotive qualification is not required |
| 1.5KE10A | Same 1500 W rating but TO-204AA (DO-4) package; no HE3 suffix or AEC-Q101 validation | Lacks JESD201 Class 2 whisker resistance and automotive reliability testing | Choose only for cost-sensitive consumer or legacy industrial designs where qualification is waived |
Compared with SMBJ10AHE3/52 and 1.5KE10A, the 1.5KA10AHE3/73 uniquely combines AEC-Q101 compliance, axial-leaded mechanical robustness for high-vibration environments, and guaranteed 185 °C operation-making it the sole choice for safety-critical automotive powertrain nodes.
Availability
1.5KA10AHE3/73 is available at Aetrix Electronics and suitable for automotive powertrain control, industrial motor drive protection, and telecom power input stage applications requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for 1.5KA10AHE3/73 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, and optoelectronics for automotive, industrial, and computing markets.
The 1.5KA series was engineered specifically for AEC-Q101-compliant transient suppression in harsh automotive environments-emphasizing thermal stability, surge endurance, and long-term parametric consistency under vibration and thermal cycling.
FAQ
What is the exact breakdown voltage range of the 1.5KA10AHE3/73?
The 1.5KA10AHE3/73 has a guaranteed breakdown voltage (VBR) range of 9.5 V to 10.5 V at 1 mA test current, measured per ANSI/IEEE C62.35. This tight tolerance ensures consistent clamping behavior across production lots and supports precise overvoltage margin design in 12 V automotive systems where the 1.5KA10AHE3/73 is deployed.
Is the 1.5KA10AHE3/73 qualified for automotive use?
Yes, the 1.5KA10AHE3/73 carries the HE3 suffix, confirming it meets AEC-Q101 stress test requirements for transient voltage suppressors-including high-temperature operating life, temperature cycling, and mechanical shock. Its 185 °C maximum junction temperature and JESD201 Class 2 whisker resistance further validate its suitability for under-hood automotive applications where the 1.5KA10AHE3/73 is specified.
What is the maximum clamping voltage of the 1.5KA10AHE3/73 during a surge event?
The 1.5KA10AHE3/73 clamps to a maximum of 14.5 V when subjected to its rated peak pulse current of 103 A (10/1000 µs waveform). This value is measured at TA = 25 °C and represents the upper limit of voltage seen by downstream components-critical for ensuring MOSFETs, microcontrollers, and sensors remain within absolute maximum ratings during surge events where the 1.5KA10AHE3/73 is installed.
Does the 1.5KA10AHE3/73 have RoHS and REACH compliance documentation?
Yes, the 1.5KA10AHE3/73 is RoHS 2002/95/EC and WEEE 2002/96/EC compliant, as stated in Vishay document 88300. The HE3 suffix explicitly denotes RoHS-compliant materials and processing, including lead-free matte tin plating and halogen-free molding compound-fully traceable through Vishay's material declarations applicable to the 1.5KA10AHE3/73.
How does the temperature coefficient affect the 1.5KA10AHE3/73's clamping performance?
The 1.5KA10AHE3/73 has a VBR temperature coefficient of +0.073 %/°C, meaning its breakdown voltage increases predictably with junction temperature. At 150 °C, VBR rises ~9.2% above room-temperature value-still maintaining safe margin below 14.5 V clamping. This linear drift allows accurate worst-case analysis in thermal design where the 1.5KA10AHE3/73 operates continuously near its 185 °C limit.
1.5KA10AHE3/73 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- PAR®
- Packaging:
- Tape & Box (TB)
- 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
1.5KA10AHE3/73 FAQ
1.How can I place an order for 1.5KA10AHE3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KA10AHE3/73 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 1.5KA10AHE3/73 reliable?
The price and inventory of 1.5KA10AHE3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KA10AHE3/73 is usually 5 days.
3.What payment methods are accepted for 1.5KA10AHE3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KA10AHE3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KA10AHE3/73?
1.5KA10AHE3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KA10AHE3/73 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 1.5KA10AHE3/73?
For technical support, including 1.5KA10AHE3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KA10AHE3/73 requirements.
6.How does Aetrix verify that 1.5KA10AHE3/73 is sourced from the original manufacturer or authorized distributors?
All 1.5KA10AHE3/73 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 1.5KA10AHE3/73 meets industry standards.
7.What is the process for return or replacement of 1.5KA10AHE3/73?
All 1.5KA10AHE3/73 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KA10AHE3/73, 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 1.5KA10AHE3/73 part is unused and in its original packaging.
Return procedure for 1.5KA10AHE3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KA10AHE3/73 Tags
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