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Vishay General Semiconductor - Diodes Division 1.5KA13HE3/51
- Part No.:
- 1.5KA13HE3/51
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KA13HE3/51.pdf
- Description:
- TVS DIODE 10.5VWM 19VC 1.5KA
- Quantity:
- Payment:
- Shipping:
Inventory:7,821
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Product details
Overview
1.5KA13HE3/51 from Vishay General Semiconductor is an automotive-grade unidirectional transient voltage suppressor (TVS) diode designed for high-reliability clamping in power line and signal line protection. It features a 13 V breakdown voltage (VBR = 11.7–14.3 V), 1500 W peak pulse power (10/1000 µs), 19.0 V maximum clamping voltage at 78.9 A, and AEC-Q101 qualification for under-hood automotive electronics.
For engineers reviewing the 1.5KA13HE3/51 datasheet, 1.5KA13HE3/51 pinout, 1.5KA13HE3/51 application, or 1.5KA13HE3/51 equivalent, this page delivers verified electrical parameters, package dimensions, clamping behavior under surge conditions, and direct alternatives for automotive ESD/surge protection design-in.
Technical Context
This TVS diode uses Vishay's patented PAR® construction to achieve low incremental surge resistance and fast response time (<1 ns), enabling effective suppression of inductive switching transients and ISO 7637-2 pulses. Its unidirectional polarity and 1.5 kW rating support robust protection of 12 V automotive systems without forward conduction during normal operation.
Rated for continuous operation up to +185 °C junction temperature and qualified per AEC-Q101, the 1.5KA13HE3/51 maintains stable VBR with +0.081 %/°C temperature coefficient and withstands 200 A non-repetitive surge (8.3 ms half-sine) - critical for engine control unit (ECU) and body control module (BCM) interface protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 11.7 V / 14.3 V - Ensures reliable turn-on above 12 V system nominal while avoiding false triggering during load dump overshoot. |
| VC @ IPPM | 19.0 V - Clamps 10/1000 µs surges to safe levels for downstream 24 V-tolerant ICs and MOSFETs. |
| PPPM | 1500 W - Handles severe ISO 7637-2 Pulse 1 (−100 V, 50 Ω, 2 Ω series) and Pulse 3a/b transients. |
| IPPM | 78.9 A - Peak current capability aligns with automotive surge test requirements for CAN/LIN bus and sensor supply lines. |
| TJ max. | +185 °C - Enables placement near high-temperature zones (e.g., powertrain modules) without derating. |
| VWM | 10.5 V - Stand-off voltage exceeds 12 V battery nominal, preventing leakage during cold-crank (6.5–8 V) and normal operation. |
| Package | Case Style 1.5KA - Axial leaded DO-201AD outline (0.375" lead length, 0.210" body diameter) for through-hole mounting and high thermal mass. |
Pinout & Package
Package: Case Style 1.5KA - axial-leaded DO-201AD molded epoxy body (UL 94 V-0), matte tin-plated leads, cathode indicated by color band. Compliant with J-STD-002 solderability and JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection in unidirectional clamp configuration | Connected to ground or low-impedance return path; carries full surge current during clamping. |
| Cathode | High-side connection to protected line | Connected to input rail (e.g., 12 V battery feed); voltage referenced to anode during transient suppression. |
Key Features
| Feature | Design Value |
|---|---|
| Patented PAR® construction | Reduces incremental surge resistance for lower clamping voltage under high-current transients. |
| AEC-Q101 qualification | Validated for automotive under-hood use including temperature cycling, humidity, and mechanical shock. |
| 1500 W 10/1000 µs rating | Meets ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b immunity requirements for 12 V systems. |
| Low VF (3.5 V @ 100 A) | Minimizes forward conduction loss during bidirectional surge events or reverse-bias leakage paths. |
| RoHS-compliant HE3 suffix | Meets JESD201 Class 2 whisker resistance and EU RoHS/WEEE directives for automotive production. |
Applications
| Automotive Power Line Protection | Engine Control Unit (ECU) Input Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed power rails in infotainment head units and ADAS domain controllers against load dump and jump-start transients. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between power input and ground, clamping transients before they reach DC/DC converters and microcontrollers. Use Value: Limits voltage to ≤19.0 V during 1500 W surges, preserving 24 V-rated power management ICs and avoiding brownout resets. | Use Scenario: Safeguarding ECU mainboard 12 V supply inputs exposed to alternator-induced spikes and relay coil flyback. IC Role / Device Role / Timing Role: Primary overvoltage clamp on main power entry point, coordinated with upstream fuses and downstream LC filters. Use Value: Withstands 200 A 8.3 ms surge and operates up to +185 °C, ensuring reliability in high-temperature engine bay environments. |
| Body Control Module (BCM) Sensor Interface | CAN Bus Power Rail Protection |
Use Scenario: Shielding LIN and analog sensor supply lines (e.g., ambient temperature, rain sensor) from inductive switching noise in door modules. IC Role / Device Role / Timing Role: Localized TVS at sensor connector or PCB edge, shunting transients before reaching precision ADC inputs. Use Value: 10.5 V stand-off avoids interference during cold-crank (6.5–8 V), while 19.0 V clamping protects 5 V/3.3 V LDOs and signal conditioners. | Use Scenario: Protecting isolated CAN transceiver VCC rails from coupled transients on vehicle chassis ground or shared power domains. IC Role / Device Role / Timing Role: Secondary clamping device parallel to primary DC/DC output, absorbing residual energy after bulk filtering. Use Value: 78.9 A peak pulse current rating ensures survivability during simultaneous CAN-H/CAN-L line faults and power rail disturbances. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ13A-E3/52 (Vishay) | Surface-mount SMB package; 13 V standoff; 1.5 kW rating; bidirectional option available | Better suited for space-constrained PCBs; lacks axial lead thermal mass for high-temperature mounting | Select when board area is limited and thermal coupling to heatsink is impractical |
| 1.5KE13A (ON Semiconductor) | Same DO-201AD package; 13 V standoff; 1500 W rating; AEC-Q101 not specified | Cost-optimized alternative for non-automotive industrial use; no automotive qualification documentation | Select for commercial/industrial applications where AEC-Q101 is not mandated |
Compared with SMBJ13A-E3/52 and 1.5KE13A, the 1.5KA13HE3/51 uniquely combines axial-leaded thermal robustness, AEC-Q101 qualification, and HE3 whisker-resistant plating - making it the preferred choice for production automotive power rail protection where long-term under-hood reliability is mandatory.
Availability
1.5KA13HE3/51 is available at Aetrix Electronics and suitable for automotive power line protection, engine control unit (ECU) input conditioning, and body control module (BCM) sensor interface applications requiring stable component supply across extended temperature and surge stress conditions.
Supply support for 1.5KA13HE3/51 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 diodes, rectifiers, MOSFETs, and protection devices with emphasis on high-reliability and automotive-grade performance.
The 1.5KA series is part of Vishay's automotive TVS portfolio, engineered specifically for AEC-Q101 compliance and robust transient suppression in 12 V and 24 V vehicle electrical systems.
FAQ
What is the clamping voltage of the 1.5KA13HE3/51 under a 10/1000 µs surge?
The 1.5KA13HE3/51 has a maximum clamping voltage (VC) of 19.0 V at its rated peak pulse current (IPPM) of 78.9 A using the standard 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and ensures downstream components see no more than 19.0 V during worst-case transients, supporting compatibility with 24 V-tolerant ICs and MOSFETs in automotive designs.
Is the 1.5KA13HE3/51 qualified for automotive use?
Yes, the 1.5KA13HE3/51 is AEC-Q101 qualified and designated as automotive grade (base P/NHE3). It undergoes rigorous testing for temperature cycling, humidity, mechanical shock, and surge endurance, and is rated for continuous operation from −65 °C to +185 °C - meeting requirements for under-hood and powertrain applications where the 1.5KA13HE3/51 is deployed.
What does the HE3 suffix indicate on the 1.5KA13HE3/51?
On the 1.5KA13HE3/51, the HE3 suffix denotes RoHS-compliant construction with matte tin-plated leads that meet JESD201 Class 2 whisker resistance requirements and J-STD-002 solderability standards. It also signifies high-reliability automotive qualification, distinguishing it from commercial-grade variants in the same 1.5KA family.
Can the 1.5KA13HE3/51 be used in bidirectional protection circuits?
No, the 1.5KA13HE3/51 is unidirectional only, as explicitly stated in its datasheet features. It conducts only during reverse-bias overvoltage events and blocks forward current above ~3.5 V. For bidirectional protection, a separate device such as the 1.5KA13AHE3/51 (with "A" suffix) must be selected - the 1.5KA13HE3/51 is not suitable for AC line or symmetrical transient suppression.
What is the standoff voltage (VWM) of the 1.5KA13HE3/51, and why does it matter?
The 1.5KA13HE3/51 has a maximum working peak reverse voltage (VWM) of 10.5 V. This ensures the device remains non-conductive during normal 12 V system operation - including cold-crank (6.5–8 V) and regulated battery conditions - preventing leakage current and power loss while still triggering reliably during transients exceeding 11.7 V (VBR min).
1.5KA13HE3/51 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- PAR®
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 10.5V
- Voltage - Breakdown (Min):
- 11.7V
- Voltage - Clamping (Max) @ Ipp:
- 19V
- Current - Peak Pulse (10/1000µs):
- 78.9A
- 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
1.5KA13HE3/51 FAQ
1.How can I place an order for 1.5KA13HE3/51 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KA13HE3/51 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 1.5KA13HE3/51 reliable?
The price and inventory of 1.5KA13HE3/51 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KA13HE3/51 is usually 5 days.
3.What payment methods are accepted for 1.5KA13HE3/51?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KA13HE3/51 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KA13HE3/51?
1.5KA13HE3/51 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KA13HE3/51 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 1.5KA13HE3/51?
For technical support, including 1.5KA13HE3/51 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KA13HE3/51 requirements.
6.How does Aetrix verify that 1.5KA13HE3/51 is sourced from the original manufacturer or authorized distributors?
All 1.5KA13HE3/51 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 1.5KA13HE3/51 meets industry standards.
7.What is the process for return or replacement of 1.5KA13HE3/51?
All 1.5KA13HE3/51 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KA13HE3/51, 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 1.5KA13HE3/51 part is unused and in its original packaging.
Return procedure for 1.5KA13HE3/51:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KA13HE3/51 Tags
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