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Vishay General Semiconductor - Diodes Division 1.5KA13AHE3/73
- Part No.:
- 1.5KA13AHE3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KA13AHE3/73.pdf
- Description:
- TVS DIODE 11.1VWM 18.2VC 1.5KA
- Quantity:
- Payment:
- Shipping:
Inventory:7,219
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Product details
Overview
1.5KA13AHE3/73 from Vishay General Semiconductor is a unidirectional automotive-grade transient voltage suppressor (TVS) diode in the 1.5KA case style, rated for 1500 W peak pulse power (10/1000 µs), 12.4–13.7 V breakdown voltage, and 18.2 V clamping voltage at 82.4 A peak pulse current. It operates from –65 °C to +185 °C and is AEC-Q101 qualified for engine control units and powertrain electronics.
For engineers reviewing the 1.5KA13AHE3/73 datasheet, 1.5KA13AHE3/73 pinout, 1.5KA13AHE3/73 application, or 1.5KA13AHE3/73 equivalent, this part supports high-reliability transient protection in automotive power rails, sensor interfaces, and MOSFET gate drivers where stable clamping, low incremental surge resistance, and RoHS-compliant matte tin leads are required.
Technical Context
This TVS diode uses patented PAR® construction for robust surge handling and thermal stability under repeated transients. Its unidirectional polarity enables precise reverse-biased clamping on DC power lines, with fast response time and low dynamic impedance ensuring effective suppression of inductive switching spikes up to 200 A IFSM.
The device is characterized per ANSI/IEEE C62.35, with VBR measured at 1 mA IT and VC specified at IPPM under standardized 10/1000 µs waveform. Its 0.081 %/°C VBR temperature coefficient ensures predictable voltage drift across the full operating junction range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (10/1000 µs) | 1500 W - sustains automotive load-dump and ISO 7637-2 pulse 5a without failure |
| Breakdown Voltage (VBR) | 12.4–13.7 V at 1 mA - defines precise clamping onset for 12 V system rail protection |
| Clamping Voltage (VC) | 18.2 V at 82.4 A - limits downstream IC stress during worst-case surge events |
| Stand-off Voltage (VWM) | 11.1 V - ensures no conduction during normal 12 V nominal operation |
| Operating Temperature | –65 °C to +185 °C - supports under-hood placement in engine control modules |
| Surge Current (IFSM) | 200 A (8.3 ms half-sine) - handles repetitive motor commutation surges |
| Leakage Current | 2 µA at VWM - minimizes standby power loss in always-on circuits |
Pinout & Package
Package: Case Style 1.5KA - molded epoxy body with matte tin-plated axial leads, UL 94 V-0 rated, 0.375" lead length, 0.210" body diameter.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias | Connected to ground or lower-potential node in unidirectional clamp configuration |
| Cathode | Current exit terminal; marked by color band | Connected to protected line (e.g., battery rail); conducts when voltage exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| Patented PAR® construction | Enables uniform current distribution and reduced hot-spot formation during 1500 W surges |
| AEC-Q101 qualification | Validated for automotive powertrain and chassis applications per stress test requirements |
| Low incremental surge resistance | Minimizes VC rise under high di/dt, improving clamping accuracy for fast transients |
| RoHS-compliant HE3 suffix | Meets JESD201 Class 2 whisker resistance and J-STD-002 solderability standards |
| High-temperature junction rating | 185 °C TJ max allows direct mounting near heat sources without derating penalties |
Applications
| Engine Control Unit (ECU) Power Rail Protection | Automotive Sensor Interface Protection |
|---|---|
Use Scenario: Protects microcontroller power inputs against load dump (ISO 7637-2 Pulse 5a) and alternator ripple in gasoline/diesel ECUs. IC Role / Device Role / Timing Role: Unidirectional TVS clamps transient overvoltage before it reaches the LDO or MCU VDD pin. Use Value: Clamps to 18.2 V at 82.4 A, preventing latch-up or permanent damage to 5 V/3.3 V logic supplies. | Use Scenario: Shields analog front-end inputs of pressure, temperature, and position sensors from ESD and inductive kickback in ADAS modules. IC Role / Device Role / Timing Role: Acts as first-line transient absorber on sensor signal lines tied to 5 V or 3.3 V reference rails. Use Value: 2 µA leakage at 11.1 V VWM avoids signal offset; 18.2 V VC preserves ADC input range integrity. |
| MOSFET Gate Driver Protection | Body Control Module (BCM) Power Distribution |
Use Scenario: Guards high-side/low-side gate drivers in electric power steering (EPS) inverters from Miller-induced voltage spikes. IC Role / Device Role / Timing Role: Placed between gate driver output and MOSFET gate to clamp dv/dt-induced overshoot. Use Value: Fast response time and low dynamic impedance limit gate voltage excursion to safe levels (<20 V), avoiding unintended turn-on. | Use Scenario: Safeguards 12 V distribution nodes feeding lighting, window lift, and mirror controls in BCMs subject to jump-start surges. IC Role / Device Role / Timing Role: Mounted at main fuse box output to absorb ISO 16750-2 jump-start transients (up to 24 V, 100 ms). Use Value: 1500 W PPPM rating and 200 A IFSM withstand repeated 24 V overvoltage events without degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ13AHE3/52 | Lower PPPM (600 W), same VBR range, SMB package (surface-mount) | Not suitable for high-energy load dump; limited to board-level signal line protection | Select when space-constrained PCB layout requires SMT and surge energy is ≤600 W |
| 1.5KE13A | Same VBR/VC specs but TO-204AA (axial) package; not AEC-Q101 qualified | Lacks automotive qualification; unsuitable for production powertrain systems | Select only for non-automotive industrial prototypes where qualification is not mandated |
Compared with SMBJ13AHE3/52 and 1.5KE13A, the 1.5KA13AHE3/73 delivers higher surge robustness (1500 W vs. 600 W or 1500 W without qualification), AEC-Q101 validation, and axial-leaded mechanical reliability-making it the sole choice for production automotive power rail protection requiring both energy capacity and certification.
Availability
1.5KA13AHE3/73 is available at Aetrix Electronics and suitable for engine control units, automotive sensor interfaces, MOSFET gate driver circuits, and body control module power distribution requiring stable component supply and long-term automotive-grade availability.
Supply support for 1.5KA13AHE3/73 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 designs and manufactures discrete semiconductors including diodes, rectifiers, and TVS devices, with emphasis on high-reliability, high-power, and automotive-qualified components.
The 1.5KA series was developed specifically for automotive transient suppression in harsh under-hood environments, combining high-temperature operation, AEC-Q101 compliance, and patented PAR® technology for consistent surge performance.
FAQ
What is the clamping voltage of the 1.5KA13AHE3/73 under maximum surge conditions?
The 1.5KA13AHE3/73 has a maximum clamping voltage (VC) of 18.2 V at 82.4 A peak pulse current, measured using the standard 10/1000 µs waveform. This value ensures that protected downstream circuitry-such as MCUs or gate drivers-experiences no more than 18.2 V during worst-case transients, well within safe operating limits for 12 V system components. The 1.5KA13AHE3/73 maintains this clamping performance across its full temperature range.
Is the 1.5KA13AHE3/73 qualified for automotive use?
Yes, the 1.5KA13AHE3/73 is AEC-Q101 qualified and designated as an automotive-grade part (HE3 suffix). It meets rigorous stress testing for temperature cycling, humidity, mechanical shock, and surge endurance required for powertrain and chassis applications. The 1.5KA13AHE3/73 is explicitly listed in Vishay's automotive product documentation as compliant with AEC-Q101 Rev D.
What does the "HE3" suffix mean on the 1.5KA13AHE3/73?
The "HE3" suffix on the 1.5KA13AHE3/73 indicates RoHS compliance, high-reliability construction, and qualification to JESD201 Class 2 for tin whisker resistance. It also confirms compliance with J-STD-002 for solderability and adherence to automotive-grade material and process controls. The 1.5KA13AHE3/73 HE3 variant is intended for mission-critical automotive deployments where long-term reliability is mandatory.
How does the 1.5KA13AHE3/73 differ from the non-A version (1.5KA13HE3/73)?
The 1.5KA13AHE3/73 features tighter breakdown voltage tolerance (12.4–13.7 V) versus the standard 1.5KA13HE3/73 (11.7–14.3 V), resulting in more precise clamping onset. It also carries full AEC-Q101 qualification and enhanced screening for automotive use, whereas the non-A version lacks formal automotive qualification and is intended for industrial applications. Both share identical package and thermal ratings.
Can the 1.5KA13AHE3/73 be used in parallel for higher surge handling?
No, the 1.5KA13AHE3/73 is not recommended for parallel operation due to mismatch in dynamic impedance and VBR tolerances, which can cause current imbalance and premature failure of one device. For higher energy requirements, select a single higher-rated part such as 1.5KA15AHE3/73 (15 V) or consult Vishay's application notes on staged protection topologies. The 1.5KA13AHE3/73 is designed for standalone use in defined surge classes.
1.5KA13AHE3/73 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):
- 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
1.5KA13AHE3/73 FAQ
1.How can I place an order for 1.5KA13AHE3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KA13AHE3/73 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 1.5KA13AHE3/73 reliable?
The price and inventory of 1.5KA13AHE3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KA13AHE3/73 is usually 5 days.
3.What payment methods are accepted for 1.5KA13AHE3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KA13AHE3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KA13AHE3/73?
1.5KA13AHE3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KA13AHE3/73 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 1.5KA13AHE3/73?
For technical support, including 1.5KA13AHE3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KA13AHE3/73 requirements.
6.How does Aetrix verify that 1.5KA13AHE3/73 is sourced from the original manufacturer or authorized distributors?
All 1.5KA13AHE3/73 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 1.5KA13AHE3/73 meets industry standards.
7.What is the process for return or replacement of 1.5KA13AHE3/73?
All 1.5KA13AHE3/73 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KA13AHE3/73, 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 1.5KA13AHE3/73 part is unused and in its original packaging.
Return procedure for 1.5KA13AHE3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KA13AHE3/73 Tags
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