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Vishay General Semiconductor - Diodes Division 1.5KA10HE3/54
- Part No.:
- 1.5KA10HE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KA10HE3/54.pdf
- Description:
- TVS DIODE 8.1VWM 15VC 1.5KA
- Quantity:
- Payment:
- Shipping:
Inventory:5,131
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Product details
Overview
1.5KA10HE3/54 from Vishay General Semiconductor is a unidirectional automotive-grade transient voltage suppressor (TVS) diode designed for high-reliability overvoltage protection in power rails and signal lines. It features a 1500 W peak pulse power rating (10/1000 µs), 9.0–11.0 V breakdown voltage (VBR), 15.0 V maximum clamping voltage at 100 A, and AEC-Q101 qualification for under-hood automotive applications.
For engineers reviewing the 1.5KA10HE3/54 datasheet, 1.5KA10HE3/54 pinout, 1.5KA10HE3/54 application, or 1.5KA10HE3/54 equivalent, key selection criteria include clamping performance at 100 A, junction temperature capability up to +185 °C, RoHS-compliant HE3 packaging with JESD201 Class 2 whisker resistance, and compatibility with 8.3 ms surge waveforms per IEC 61000-4-5.
Technical Context
This TVS diode employs Vishay's patented PAR® construction for stable clamping under repetitive surge stress and operates exclusively in unidirectional polarity. Its low incremental surge resistance and fast response time (<1 ns) enable effective suppression of inductive switching transients and ESD events in 12 V and 24 V automotive systems.
The device is rated for continuous power dissipation of 6.5 W on an infinite heatsink at TL = 75 °C, supports 200 A non-repetitive forward surge current (8.3 ms half-sine), and maintains specified leakage (<20 µA at VWM = 8.10 V) across its full operating junction temperature range of –65 °C to +185 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 9.0 V / 11.0 V - Ensures reliable turn-on before downstream IC damage in 12 V nominal systems |
| VC @ IPPM | 15.0 V - Clamps 100 A surge to safe level for 3.3 V/5 V logic and MOSFET gate drivers |
| PPPM | 1500 W - Handles ISO 7637-2 Pulse 1/2a/5a transients without degradation |
| TJ max. | +185 °C - Supports placement near high-temperature engine control units |
| IFSM | 200 A - Withstands load-dump surges per SAE J1128 without failure |
| VWM | 8.10 V - Blocks normal 12 V system operation while remaining fully responsive to overvoltage |
| Package | Case Style 1.5KA - Axial-leaded DO-201AD outline, lead-free matte tin plating, UL 94 V-0 epoxy |
Pinout & Package
1.5KA10HE3/54 uses a two-terminal axial-leaded package (Case Style 1.5KA, DO-201AD compatible). The cathode is marked by a color band; the anode is the unmarked end. Leads are matte tin-plated and solderable per J-STD-002 and JESD22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry during forward conduction; connected to protected circuit ground or low-side return path | Enables unidirectional clamping to ground when reverse-biased; must be routed with low-inductance trace |
| Cathode | Current exit during clamping; connected to protected line (e.g., battery rail or signal line) | Provides low-impedance path to shunt surge energy to ground; color band identifies this terminal |
Key Features
| Feature | Design Value |
|---|---|
| Patented PAR® construction | Eliminates parameter drift after repeated 10/1000 µs surges, ensuring long-term clamping stability in cyclic automotive environments |
| AEC-Q101 qualification | Validated for automotive under-hood use including temperature cycling, humidity bias, and mechanical shock per test plan |
| 1500 W peak pulse power | Meets ISO 7637-2 Level IV and IEC 61000-4-5 4 kV surge immunity requirements without derating |
| HE3 suffix reliability grade | Passes JESD201 Class 2 whisker testing and RoHS compliance with high-reliability molding compound |
| Low VC/VBR ratio (1.50) | Minimizes let-through voltage during clamping, reducing stress on downstream 15 V-rated components |
Applications
| Engine Control Unit (ECU) Power Input Protection | Automotive Sensor Signal Line Protection |
|---|---|
Use Scenario: Installed across battery feed to ECU main power input to suppress load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS clamps positive transients to ground, protecting DC/DC converters and microcontrollers. Use Value: Withstands 200 A 8.3 ms surges and maintains VC ≤ 15.0 V, preventing latch-up or burnout in 5 V/3.3 V subsystems. | Use Scenario: Placed on LIN bus or analog sensor output lines (e.g., oxygen sensor, throttle position) exposed to harness coupling. IC Role / Device Role / Timing Role: Fast-response TVS diverts ESD and coupled noise away from precision ADC inputs and op-amps. Use Value: Sub-1 ns response and <20 µA leakage at 8.1 V ensure signal integrity and minimal offset error in 12-bit sensor interfaces. |
| Body Control Module (BCM) Relay Drive Protection | Infotainment System USB/UART Port Protection |
Use Scenario: Mounted across relay coil terminals in BCM to absorb inductive kickback during de-energization. IC Role / Device Role / Timing Role: Unidirectional clamp provides low-impedance path for stored coil energy, limiting flyback voltage to <15 V. Use Value: 1500 W rating handles repetitive 100 A transients without thermal runaway; TJ max. of +185 °C suits sealed BCM enclosures. | Use Scenario: Integrated on USB VBUS and UART TX/RX lines in head unit to guard against hot-plug transients and ESD. IC Role / Device Role / Timing Role: Standoff voltage (8.10 V) blocks normal 5 V operation while clamping ESD >8 kV to safe levels. Use Value: VWM margin above 5 V ensures no false triggering; low capacitance (<100 pF) preserves 480 Mbps USB 2.0 signal integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ10A | Surface-mount SMB package; lower PPPM (600 W); bidirectional option available | Better suited for PCB space-constrained consumer electronics; not AEC-Q101 qualified | Select only for non-automotive, board-level designs where axial leads are impractical |
| 1.5KE10A | Same axial DO-201AD package but standard industrial grade; no HE3 whisker or AEC-Q101 certification | Lacks automotive qualification and high-temperature reliability validation; lower production traceability | Acceptable for cost-sensitive industrial controls where +125 °C max. junction suffices |
Compared with 1.5KA10HE3/54, SMBJ10A offers smaller footprint but sacrifices 60% pulse power and automotive qualification; 1.5KE10A matches form factor but lacks AEC-Q101 validation, making it unsuitable for safety-critical vehicle subsystems.
Availability
1.5KA10HE3/54 is available at Aetrix Electronics and suitable for automotive ECU protection, body control module design, and infotainment system surge hardening requiring stable component supply across extended temperature and lifecycle demands.
Supply support for 1.5KA10HE3/54 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 is a global leader in discrete semiconductors, specializing in high-reliability diodes, MOSFETs, and passive components for automotive, industrial, and computing markets.
The 1.5KA series is engineered specifically for AEC-Q101-compliant automotive transient suppression, emphasizing thermal robustness, surge endurance, and long-term parametric stability under harsh under-hood conditions.
FAQ
What is the clamping voltage of the 1.5KA10HE3/54 at its rated peak pulse current?
The 1.5KA10HE3/54 has a maximum clamping voltage (VC) of 15.0 V at 100 A peak pulse current (IPPM) using a 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and ensures downstream 15 V-rated components remain within safe operating limits during surge events. The 1.5KA10HE3/54 achieves this with low incremental surge resistance inherent to its PAR® construction.
Is the 1.5KA10HE3/54 suitable for bidirectional transient protection?
No, the 1.5KA10HE3/54 is unidirectional only, as confirmed in the Vishay datasheet Document Number 88300. It protects against positive transients referenced to ground and must not be used for AC-line or bipolar signal protection. For bidirectional applications, consider the 1.5KA10A variant or alternate families like the SMAJ series - the 1.5KA10HE3/54 does not support reverse-polarity clamping.
Does the 1.5KA10HE3/54 meet automotive qualification standards?
Yes, the 1.5KA10HE3/54 is AEC-Q101 qualified per the "Base P/NHE3" designation in the Mechanical Data section. It undergoes stress testing for temperature cycling, humidity bias, mechanical shock, and high-temperature operating life. The HE3 suffix further certifies compliance with JESD201 Class 2 whisker resistance and RoHS Directive 2002/95/EC - all verified for the 1.5KA10HE3/54.
What is the standoff voltage (VWM) and why is it critical for the 1.5KA10HE3/54?
The 1.5KA10HE3/54 has a maximum working peak reverse voltage (VWM) of 8.10 V, which defines the highest continuous DC or RMS voltage the device blocks without significant leakage. This value ensures reliable operation on 12 V automotive systems where normal rail fluctuations stay below 8.1 V, preventing false triggering while maintaining responsiveness to transients above 9.0 V. VWM is a key parameter for correct 1.5KA10HE3/54 system integration.
How does the HE3 suffix impact the reliability of the 1.5KA10HE3/54?
The HE3 suffix on the 1.5KA10HE3/54 denotes high-reliability, automotive-grade construction: matte tin-plated leads compliant with J-STD-002, UL 94 V-0 flammability-rated epoxy, and passing JESD201 Class 2 whisker testing. These attributes directly enhance long-term solder joint integrity and environmental resilience - distinguishing the 1.5KA10HE3/54 from standard industrial variants and supporting 15+ year automotive service life.
1.5KA10HE3/54 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):
- 8.1V
- Voltage - Breakdown (Min):
- 9V
- Voltage - Clamping (Max) @ Ipp:
- 15V
- Current - Peak Pulse (10/1000µs):
- 100A
- 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
1.5KA10HE3/54 FAQ
1.How can I place an order for 1.5KA10HE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KA10HE3/54 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 1.5KA10HE3/54 reliable?
The price and inventory of 1.5KA10HE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KA10HE3/54 is usually 5 days.
3.What payment methods are accepted for 1.5KA10HE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KA10HE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KA10HE3/54?
1.5KA10HE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KA10HE3/54 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 1.5KA10HE3/54?
For technical support, including 1.5KA10HE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KA10HE3/54 requirements.
6.How does Aetrix verify that 1.5KA10HE3/54 is sourced from the original manufacturer or authorized distributors?
All 1.5KA10HE3/54 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 1.5KA10HE3/54 meets industry standards.
7.What is the process for return or replacement of 1.5KA10HE3/54?
All 1.5KA10HE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KA10HE3/54, 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 1.5KA10HE3/54 part is unused and in its original packaging.
Return procedure for 1.5KA10HE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KA10HE3/54 Tags
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