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Vishay General Semiconductor - Diodes Division 1.5KA36HE3/54
- Part No.:
- 1.5KA36HE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KA36HE3/54.pdf
- Description:
- TVS DIODE 29.1VWM 52VC 1.5KA
- Quantity:
- Payment:
- Shipping:
Inventory:4,393
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Product details
Overview
1.5KA36HE3/54 from Vishay General Semiconductor is a unidirectional automotive-grade transient voltage suppressor (TVS) diode with 1500 W peak pulse power (10/1000 µs), 32.4–39.6 V breakdown voltage, and AEC-Q101 qualification. It clamps transients to ≤52.0 V at 28.8 A, operates from –65 °C to +185 °C, and protects MOSFETs and sensor signal lines in automotive powertrain control units.
For engineers reviewing the 1.5KA36HE3/54 datasheet, 1.5KA36HE3/54 pinout, 1.5KA36HE3/54 application, or 1.5KA36HE3/54 equivalent, key selection criteria include its 1.0 µA max reverse leakage at 29.1 V, 0.099 %/°C VBR tempco, RoHS-compliant HE3 packaging, and JESD201 Class 2 whisker resistance for high-reliability under-hood deployment.
Technical Context
This TVS diode uses patented PAR® construction for stable clamping under repetitive surge stress and features low incremental surge resistance to minimize voltage overshoot during fast transients. Its unidirectional polarity and 3.5 V max forward voltage at 100 A support robust DC-biased protection in 12 V/24 V automotive systems.
Designed for AEC-Q101 compliance, it sustains 185 °C junction temperature and withstands solder dip at 260 °C for 40 s. The molded epoxy case meets UL 94 V-0, and matte tin-plated leads comply with J-STD-002 and JESD22-B102.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR Range | 32.4 V min to 39.6 V max at 1.0 mA - defines precise clamping onset threshold for 36 V nominal systems |
| PPPM | 1500 W (10/1000 µs) - delivers robust surge immunity against ISO 7637-2 Pulse 1/2a/5a in automotive ECUs |
| VC @ IPPM | ≤52.0 V at 28.8 A - ensures protected ICs see sub-55 V stress during worst-case transients |
| IR @ VWM | ≤1.0 µA at 29.1 V - guarantees negligible standby current drain in always-on vehicle modules |
| TJ Max | +185 °C - enables direct mounting near high-temperature power components without derating |
| Package | Case Style 1.5KA - axial-leaded, 0.375" lead length, UL 94 V-0 epoxy body for mechanical ruggedness |
Pinout & Package
Case Style 1.5KA is an axial-leaded package with cathode indicated by a color band. Leads are matte tin-plated, compliant with J-STD-002 and JESD22-B102. Solderable at 260 °C for 40 s. UL 94 V-0 rated epoxy body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | DC return path for clamped surge current | Connected to system ground or low-side reference; carries full IPPM during transient |
| Cathode | Protected line connection point | Connected to line being protected (e.g., sensor supply rail); color-banded end per JEDEC standard |
Key Features
| Feature | Design Value |
|---|---|
| Patented PAR® construction | Enables consistent clamping performance across 1000+ surge cycles without parameter drift |
| AEC-Q101 qualification | Validated for automotive under-hood use including temperature cycling, humidity bias, and mechanical shock |
| JESD201 Class 2 whisker resistance | Prevents tin whisker growth-induced short circuits in long-life automotive modules (>15 yr) |
| 10/1000 µs waveform rating | Matches ISO 7637-2 test profiles for load dump and inductive switching transients |
Applications
| Engine Control Unit (ECU) Power Input | Automotive Camera Sensor Interface |
|---|---|
Use Scenario: Protects 12 V input rails of engine control modules against ISO 7637-2 Pulse 5a (load dump up to 60 V). IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed upstream of DC/DC converter input. Use Value: Limits transient voltage to ≤52.0 V, preventing damage to buck controller ICs and ensuring uninterrupted ECU operation. | Use Scenario: Shields LVDS or FPD-Link III video signal lines in rear-view cameras from ESD and cable discharge events. IC Role / Device Role / Timing Role: Signal-line TVS with low capacitance (<100 pF at VWM) and fast response (<1 ns). Use Value: Maintains signal integrity while suppressing ±15 kV contact ESD per ISO 10605 without adding jitter or attenuation. |
| Body Control Module (BCM) CAN Transceiver Supply | Electric Power Steering (EPS) Motor Driver Gate Protection |
Use Scenario: Guards 5 V supply rail feeding isolated CAN transceivers against coupled transients from adjacent high-current loads. IC Role / Device Role / Timing Role: Secondary-stage TVS on regulated supply, complementing primary front-end protection. Use Value: Prevents latch-up or burnout of CAN PHY ICs during battery disconnect/reconnect events. | Use Scenario: Clamps Miller-induced voltage spikes on high-side gate drivers during MOSFET switching in EPS motor inverters. IC Role / Device Role / Timing Role: Fast-response unidirectional clamp between gate and source, referenced to driver IC ground. Use Value: Suppresses >100 V spikes within nanoseconds, avoiding false turn-on and gate oxide failure in 650 V Si MOSFETs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ36AHE3/52 | Surface-mount SMB package; 36 V standoff; 600 W PPPM; lower IPPM (32.4 A vs. 28.8 A) | Preferred for space-constrained PCBs where axial leads are impractical; not qualified to AEC-Q101 | Select when board area is critical and automotive qualification is handled at system level |
| 1.5KE36A | Through-hole DO-201 package; same VBR range; 1500 W rating; no HE3 suffix or AEC-Q101 qualification | Used in industrial/commercial power supplies; lacks JESD201 whisker testing and automotive thermal derating validation | Select for cost-sensitive non-automotive applications requiring identical electrical specs but no automotive reliability assurance |
Compared with 1.5KA36HE3/54, SMBJ36AHE3/52 offers smaller footprint but reduced surge capability and no AEC-Q101 validation, while 1.5KE36A matches power rating but omits automotive-specific process controls and high-temperature reliability data required for under-hood deployment.
Availability
1.5KA36HE3/54 is available at Aetrix Electronics and suitable for automotive engine control units, ADAS camera modules, and electric power steering systems requiring stable component supply with guaranteed AEC-Q101 conformance and long-term production continuity.
Supply support for 1.5KA36HE3/54 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 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 family targets harsh-environment transient suppression, specifically engineered for AEC-Q101 compliance, extended temperature operation, and repeatable clamping in automotive power distribution and control modules.
FAQ
What is the maximum clamping voltage of the 1.5KA36HE3/54 under peak surge conditions?
The 1.5KA36HE3/54 has a maximum clamping voltage (VC) of 52.0 V at its rated peak pulse current (IPPM) of 28.8 A, measured with a 10/1000 µs waveform. This value is guaranteed across the full operating temperature range and ensures downstream ICs remain within safe absolute maximum ratings during ISO 7637-2 Pulse 5a events. The 1.5KA36HE3/54 achieves this via low incremental surge resistance inherent to its PAR® construction.
Is the 1.5KA36HE3/54 qualified for automotive applications?
Yes, the 1.5KA36HE3/54 is explicitly AEC-Q101 qualified and designated as high-reliability/automotive grade per its HE3 suffix. It undergoes rigorous stress testing including temperature cycling, high-temperature operating life, and mechanical shock-validated for under-hood deployment up to +185 °C junction temperature. The 1.5KA36HE3/54 also meets JESD201 Class 2 whisker requirements, confirming long-term reliability in automotive modules.
What does the HE3/54 suffix indicate in 1.5KA36HE3/54?
The HE3 suffix denotes RoHS-compliant, high-reliability/automotive-grade construction meeting AEC-Q101, with matte tin-plated leads passing JESD201 Class 2 whisker testing. The /54 indicates the preferred package code: 13" diameter paper tape and reel, with base quantity 1400 units. This packaging ensures automated placement compatibility and traceable lot control-critical for 1.5KA36HE3/54 deployment in Tier 1 automotive production lines.
How does the 1.5KA36HE3/54 compare to standard 1.5KE series TVS diodes?
The 1.5KA36HE3/54 shares the same 1500 W peak pulse power and 36 V nominal breakdown as the 1.5KE36A, but adds AEC-Q101 qualification, JESD201 Class 2 whisker resistance, higher TJ max (+185 °C vs. +175 °C), and enhanced thermal stability. Unlike generic 1.5KE parts, the 1.5KA36HE3/54 is validated for automotive under-hood use with documented derating curves and solderability at 260 °C for 40 s-making it unsuitable for substitution without requalification.
What is the reverse leakage current specification for the 1.5KA36HE3/54 at room temperature?
At 25 °C and stand-off voltage (VWM) of 29.1 V, the 1.5KA36HE3/54 exhibits a maximum reverse leakage current (IR) of 1.0 µA. This ultra-low leakage minimizes quiescent power loss in always-on vehicle subsystems such as body control modules and telematics units. The 1.5KA36HE3/54 maintains ≤10 µA leakage even at 150 °C, supporting reliable operation across the full automotive temperature range.
1.5KA36HE3/54 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):
- 29.1V
- Voltage - Breakdown (Min):
- 32.4V
- Voltage - Clamping (Max) @ Ipp:
- 52V
- Current - Peak Pulse (10/1000µs):
- 28.8A
- 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
1.5KA36HE3/54 FAQ
1.How can I place an order for 1.5KA36HE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KA36HE3/54 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 1.5KA36HE3/54 reliable?
The price and inventory of 1.5KA36HE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KA36HE3/54 is usually 5 days.
3.What payment methods are accepted for 1.5KA36HE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KA36HE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KA36HE3/54?
1.5KA36HE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KA36HE3/54 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 1.5KA36HE3/54?
For technical support, including 1.5KA36HE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KA36HE3/54 requirements.
6.How does Aetrix verify that 1.5KA36HE3/54 is sourced from the original manufacturer or authorized distributors?
All 1.5KA36HE3/54 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 1.5KA36HE3/54 meets industry standards.
7.What is the process for return or replacement of 1.5KA36HE3/54?
All 1.5KA36HE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KA36HE3/54, 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 1.5KA36HE3/54 part is unused and in its original packaging.
Return procedure for 1.5KA36HE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KA36HE3/54 Tags
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