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Vishay General Semiconductor - Diodes Division 1.5KA13AHE3/51
- Part No.:
- 1.5KA13AHE3/51
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KA13AHE3/51.pdf
- Description:
- TVS DIODE 11.1VWM 18.2VC 1.5KA
- Quantity:
- Payment:
- Shipping:
Inventory:8,299
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Product details
Overview
1.5KA13AHE3/51 from Vishay General Semiconductor is an automotive-grade unidirectional transient voltage suppressor (TVS) diode designed for high-reliability clamping in power and signal lines. It features a 12.4 V to 13.7 V breakdown voltage (VBR), 1500 W peak pulse power (10/1000 µs), 18.2 V maximum clamping voltage at 82.4 A, and AEC-Q101 qualification for under-hood automotive electronics.
For engineers reviewing the 1.5KA13AHE3/51 datasheet, 1.5KA13AHE3/51 pinout, 1.5KA13AHE3/51 application, or 1.5KA13AHE3/51 equivalent, this part supports robust overvoltage protection in engine control units, sensor interfaces, and 12 V power rail systems where thermal stability up to +185 °C and low incremental surge resistance are critical.
Technical Context
This TVS diode uses Vishay's patented PAR® construction for stable clamping performance under repetitive surge stress. Its unidirectional polarity enables integration into DC-biased circuits with precise reverse standoff voltage (VWM = 11.1 V) and low leakage (<2 µA at TJ = 150 °C).
Designed for automotive transients per ISO 7637-2 and IEC 61000-4-5, it delivers fast response time (<1.0 ps), low dynamic impedance, and operates across –65 °C to +185 °C junction temperature range with RoHS-compliant matte tin-plated leads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 12.4 V / 13.7 V - Ensures reliable triggering above normal 12 V rail operating voltage while avoiding false clamping. |
| VWM | 11.1 V - Maximum continuous reverse working voltage compatible with standard 12 V automotive systems. |
| VC @ IPPM | 18.2 V - Clamps induced transients to safe levels for downstream MOSFETs and microcontrollers. |
| IPPM | 82.4 A - Sustains high-energy surges from load dump or inductive switching without degradation. |
| PPPM | 1500 W - Handles severe 10/1000 µs waveform transients common in automotive power networks. |
| TJ max. | +185 °C - Enables placement near heat sources (e.g., ECUs, power modules) without derating loss. |
| Qualification | AEC-Q101 qualified - Validated for automotive reliability including temperature cycling, HTRB, and surge endurance. |
Pinout & Package
Package: Case Style 1.5KA - Axial-leaded, molded epoxy body (UL 94 V-0), 0.375" (9.5 mm) lead length, 0.210" (5.3 mm) body diameter. Cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Surge return path | Connected to ground or low-impedance return plane during clamping event. |
| Cathode | Clamping node / Transient sink | Connected to protected line (e.g., battery feed, sensor supply); absorbs positive transients. |
Key Features
| Feature | Design Value |
|---|---|
| Patented PAR® construction | Enables consistent VBR stability and low dynamic impedance across temperature and lifetime. |
| 1500 W peak pulse power (10/1000 µs) | Meets ISO 7637-2 Pulse 5a (load dump) requirements for 12 V systems without external heatsinking. |
| Low incremental surge resistance | Minimizes clamping voltage overshoot during fast-rising transients (e.g., relay coil flyback). |
| Matte tin-plated leads (J-STD-002 compliant) | Ensures reliable solder wetting and intermetallic formation in automated assembly processes. |
| HE3 suffix (JESD201 Class 2 whisker test) | Guarantees long-term reliability in high-temperature, high-humidity automotive environments. |
Applications
| Engine Control Unit (ECU) Power Input | Automotive Sensor Signal Line Protection |
|---|---|
Use Scenario: Protects ECU main 12 V supply against load dump transients (up to 35 V, 400 ms) and alternator ripple. IC Role / Device Role / Timing Role: Primary clamping device on battery feed line, placed upstream of input filter and LDO regulators. Use Value: Limits voltage to ≤18.2 V during 82.4 A surge, preventing damage to MCU power domains and analog front-ends. | Use Scenario: Shields LIN/CAN transceiver I/O pins and analog sensor outputs (e.g., MAP, O2) from ESD and switching noise. IC Role / Device Role / Timing Role: Unidirectional shunt protector on signal lines referenced to chassis ground. Use Value: Clamps fast transients (<1 ns rise time) with <2 µA leakage at 11.1 V, preserving signal integrity in low-current sensor paths. |
| Body Control Module (BCM) Relay Driver Output | Start-Stop System Battery Monitoring Circuit |
Use Scenario: Suppresses inductive kickback from door lock actuators, window motors, and HVAC relays. IC Role / Device Role / Timing Role: Parallel-connected TVS at relay coil terminals to absorb stored energy. Use Value: Withstands 200 A non-repetitive forward surge (IFSM), enabling direct placement across high-current inductive loads. | Use Scenario: Safeguards voltage monitoring ICs and ADC inputs during cranking (–12 V dips) and jump-start events (+28 V spikes). IC Role / Device Role / Timing Role: Standoff-clamp protector on battery sense line with tight VWM/VBR margin. Use Value: Maintains 11.1 V working voltage while triggering at ≥12.4 V, ensuring no false trips during normal cranking dips. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ13AHE3/52 | Same VBR range (12.4–13.7 V), lower PPPM (600 W), SMC package (surface-mount) | Not suitable for high-energy load dump; limited to board-level ESD and low-energy transients | Select when space-constrained PCB layout requires SMT and surge energy is ≤600 W. |
| 1.5KE13A | Same VBR, identical PPPM (1500 W), but not AEC-Q101 qualified; TO-204AA (DO-41) package | Lacks automotive qualification and high-temp reliability validation; unsuitable for under-hood use | Select only for industrial or consumer applications where AEC-Q101 and +185 °C operation are not required. |
Compared with SMBJ13AHE3/52 and 1.5KE13A, the 1.5KA13AHE3/51 uniquely combines 1500 W surge capability, AEC-Q101 qualification, and +185 °C operation-making it the only option validated for under-hood automotive power rail protection where thermal and reliability margins are non-negotiable.
Availability
1.5KA13AHE3/51 is available at Aetrix Electronics and suitable for engine control units, automotive sensor interfaces, and start-stop system battery monitoring requiring stable component supply across extended temperature and lifecycle demands.
Supply support for 1.5KA13AHE3/51 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 high-reliability diodes, MOSFETs, and passive components for automotive, industrial, and computing markets.
The 1.5KA series was engineered specifically for automotive transient suppression, emphasizing AEC-Q101 compliance, high-temperature stability, and robust clamping performance in harsh under-hood environments.
FAQ
What is the clamping voltage of the 1.5KA13AHE3/51 under full-rated surge current?
The 1.5KA13AHE3/51 has a maximum clamping voltage (VC) of 18.2 V at its rated peak pulse current (IPPM) of 82.4 A, measured using the standardized 10/1000 µs waveform. This value ensures protected circuitry remains below critical overvoltage thresholds during worst-case automotive transients such as load dump or inductive switching events.
Is the 1.5KA13AHE3/51 suitable for bidirectional transient protection?
No, the 1.5KA13AHE3/51 is unidirectional only, as confirmed in the Vishay datasheet Document Number 88300. It protects against positive transients on DC-biased lines and must be oriented with cathode toward the protected line. For bidirectional protection, a separate symmetrical TVS array or dual-diode configuration is required-not provided by the 1.5KA13AHE3/51 itself.
Does the 1.5KA13AHE3/51 meet AEC-Q101 requirements?
Yes, the 1.5KA13AHE3/51 is explicitly AEC-Q101 qualified, as stated in the "Mechanical Data" section of the Vishay datasheet (Document Number 88300). The HE3 suffix denotes RoHS compliance and high-reliability automotive grade, validated across temperature cycling, high-temperature reverse bias, and surge endurance tests per AEC-Q101 Rev D.
What is the maximum operating junction temperature for the 1.5KA13AHE3/51?
The 1.5KA13AHE3/51 has a maximum junction temperature (TJ) rating of +185 °C, verified per the "Maximum Ratings" table in the Vishay datasheet. This allows direct mounting on high-temperature substrates or proximity to power components in engine compartments without thermal derating penalties up to that limit.
How does the 1.5KA13AHE3/51 differ from the standard 1.5KA13A variant?
The 1.5KA13AHE3/51 includes the HE3 suffix, indicating RoHS compliance, JESD201 Class 2 whisker resistance, and packaging in 13" paper tape and reel (package code 51). Electrically and thermally, it is identical to 1.5KA13A-but the HE3/51 variant is designated for high-reliability automotive production with traceable, whisker-free lead finish and controlled packaging format.
1.5KA13AHE3/51 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):
- 11.1V
- Voltage - Breakdown (Min):
- 12.4V
- Voltage - Clamping (Max) @ Ipp:
- 18.2V
- Current - Peak Pulse (10/1000µs):
- 82.4A
- 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
1.5KA13AHE3/51 FAQ
1.How can I place an order for 1.5KA13AHE3/51 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KA13AHE3/51 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 1.5KA13AHE3/51 reliable?
The price and inventory of 1.5KA13AHE3/51 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KA13AHE3/51 is usually 5 days.
3.What payment methods are accepted for 1.5KA13AHE3/51?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KA13AHE3/51 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KA13AHE3/51?
1.5KA13AHE3/51 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KA13AHE3/51 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 1.5KA13AHE3/51?
For technical support, including 1.5KA13AHE3/51 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KA13AHE3/51 requirements.
6.How does Aetrix verify that 1.5KA13AHE3/51 is sourced from the original manufacturer or authorized distributors?
All 1.5KA13AHE3/51 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 1.5KA13AHE3/51 meets industry standards.
7.What is the process for return or replacement of 1.5KA13AHE3/51?
All 1.5KA13AHE3/51 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KA13AHE3/51, 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 1.5KA13AHE3/51 part is unused and in its original packaging.
Return procedure for 1.5KA13AHE3/51:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KA13AHE3/51 Tags
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