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Vishay General Semiconductor - Diodes Division 3KASMC36AHE3/57T
- Part No.:
- 3KASMC36AHE3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
3KASMC36AHE3/57T.pdf
- Description:
- TVS DIODE 36VWM 58.1VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,473
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Product details
Overview
3KASMC36AHE3/57T from Vishay General Semiconductor is a unidirectional surface-mount PAR® Transient Voltage Suppressor (TVS) diode in DO-214AB (SMC) package, rated for 36 V stand-off voltage, 40.0–44.2 V breakdown at 1 mA, 3000 W peak pulse power (10/1000 µs), 51.6 A peak pulse current, and 58.1 V clamping voltage at IPPM - deployed for automotive power line and sensor signal line surge protection.
For engineers reviewing the 3KASMC36AHE3/57T datasheet, 3KASMC36AHE3/57T pinout, 3KASMC36AHE3/57T application, or 3KASMC36AHE3/57T equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, TJ = 185 °C maximum junction temperature, MSL Level 1 rating, and DO-214AB thermal resistance (RθJA = 77.5 °C/W).
Technical Context
This TVS diode employs passivated anisotropic rectifier technology to achieve high-temperature stability up to TJ = 185 °C and low incremental surge resistance. Its clamping performance is characterized by VC = 58.1 V at IPPM = 51.6 A under 10/1000 µs waveform, with VF = 3.5 V at 100 A forward surge.
Designed for automotive-grade reliability, it meets AEC-Q101 stress testing requirements and is qualified per JESD22-B102 (whisker test) and J-STD-020 (MSL Level 1, 260 °C peak reflow). The device operates across –65 °C to +185 °C junction temperature range and exhibits <1.0 µA reverse leakage at VWM = 36 V (TA = 25 °C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 36 V - Maximum continuous reverse operating voltage before clamping initiates |
| VBR (Breakdown Voltage) | 40.0–44.2 V at IT = 1 mA - Confirmed avalanche onset range for reliable overvoltage triggering |
| PPPM (Peak Pulse Power) | 3000 W (10/1000 µs) - Sustains high-energy transients common in automotive load-dump events |
| IPPM (Peak Pulse Current) | 51.6 A - Delivers robust surge current handling without degradation under standardized waveform |
| VC (Clamping Voltage) | 58.1 V at IPPM - Limits downstream circuit voltage during transient to protect 40 V-rated ICs/MOSFETs |
| TJ max. | 185 °C - Enables operation in under-hood automotive environments without derating penalties |
| Polarity | Unidirectional - Provides reverse-biased clamping only; requires correct orientation in DC power rails |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, matte tin-plated leads, cathode indicated by color band. Complies with UL 94 V-0 flammability rating and JEDEC J-STD-020 MSL Level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side of protected line (e.g., ground or return path) |
| Cathode | Avalanche clamping terminal | Connected to higher-potential side (e.g., battery rail or signal line); marked by color band |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive electronics per stress test requirements (HTOL, TC, AC, etc.) |
| Junction passivation | Enhances long-term reliability under high-temperature bias and humidity exposure |
| MSL Level 1 rating | Enables standard SMT reflow without pre-baking; peak solder temperature up to 260 °C |
| Low RSURGE | Minimizes voltage overshoot during fast transients via low incremental surge resistance |
| 185 °C TJ capability | Supports placement near heat sources (e.g., power converters, motor drivers) without thermal derating |
Applications
| Automotive Power Rail Protection | Engine Control Unit (ECU) Sensor Interface |
|---|---|
Use Scenario: Protecting 12 V battery-fed microcontroller power inputs against ISO 7637-2 load-dump transients (up to 60 V, 400 ms). IC Role / Device Role: Unidirectional TVS clamp placed between VBAT and GND, upstream of LDO regulator. Use Value: Clamps to 58.1 V at 51.6 A, limiting stress on downstream 40 V-rated regulators and ensuring ECU functional safety compliance. |
Use Scenario: Shielding analog sensor signal lines (e.g., MAP, TPS) from coupled switching noise and ESD in engine bay harnesses. IC Role / Device Role: Low-capacitance TVS mounted at connector entry point, cathode to signal, anode to chassis ground. Use Value: Sub-1 µA leakage at 36 V preserves sensor accuracy; 58.1 V clamping prevents ADC saturation during 2 kV ESD events. |
| Industrial Motor Drive Gate Driver Supply | Telecom DC Power Input Stage |
Use Scenario: Safeguarding isolated gate driver bias supplies (e.g., 15 V rails) from inductive kickback in IGBT half-bridges. IC Role / Device Role: TVS connected across secondary-side supply, absorbing repetitive 3000 W pulses during fault conditions. Use Value: 3000 W peak pulse rating and 185 °C TJ enable sustained operation in enclosed drive enclosures without thermal shutdown. |
Use Scenario: Front-end protection for 48 V telecom rectifier outputs exposed to lightning-induced surges on outdoor plant wiring. IC Role / Device Role: Primary-level unidirectional TVS on DC input bus, coordinated with upstream MOVs and fuses. Use Value: 51.6 A IPPM and 58.1 V VC ensure coordination with 60 V-rated DC-DC converters while meeting GR-1089-CORE surge immunity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ36A | Lower PPPM (400 W), smaller SMA package (DO-214AC), RθJA = 110 °C/W, TJ max. = 150 °C | Not AEC-Q101 qualified; unsuitable for under-hood automotive use or high-reliability industrial deployments | Select when cost-sensitive consumer designs require basic 36 V clamping with lower surge energy demands |
| SMCJ36A | Same DO-214AB package, identical VWM/VBR/VC specs, but rated for 1500 W PPPM (10/1000 µs) and TJ max. = 175 °C | Lacks AEC-Q101 qualification and 185 °C junction rating; not validated for automotive qualification testing | Choose where automotive qualification is unnecessary but DO-214AB mechanical compatibility and moderate surge margin are required |
Compared with SMAJ36A and SMCJ36A, the 3KASMC36AHE3/57T delivers 2× higher peak pulse power (3000 W vs. 1500/400 W), full AEC-Q101 compliance, and extended 185 °C junction capability - making it the only option qualified for critical automotive power rail and sensor protection where thermal margin and qualification rigor are mandatory.
Availability
3KASMC36AHE3/57T is available at Aetrix Electronics and suitable for automotive power rail protection, ECU sensor interface hardening, industrial motor drive gate supply safeguarding, and telecom DC input surge suppression requiring stable component supply and long-term lifecycle assurance.
Supply support for 3KASMC36AHE3/57T 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, TVS devices, and MOSFETs with emphasis on high-reliability, high-temperature, and automotive-qualified solutions.
The 3KASMC series is part of Vishay's PAR® (Passivated Anisotropic Rectifier) TVS platform, engineered specifically for AEC-Q101-compliant automotive and harsh-environment industrial surge protection where junction temperature resilience and repeatable clamping performance are non-negotiable.
FAQ
What is the clamping voltage of the 3KASMC36AHE3/57T at its rated peak pulse current?
The 3KASMC36AHE3/57T has a maximum clamping voltage (VC) of 58.1 V when subjected to its rated peak pulse current (IPPM) of 51.6 A under the standard 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and ensures predictable overvoltage limiting for downstream 40 V-rated components. The 3KASMC36AHE3/57T maintains this clamping performance across its full operating temperature range.
Is the 3KASMC36AHE3/57T qualified for automotive applications?
Yes, the 3KASMC36AHE3/57T is explicitly AEC-Q101 qualified, as confirmed in Vishay document 89962. It undergoes stress testing including high-temperature operating life (HTOL), temperature cycling (TC), and autoclave (AC) per AEC-Q101 Rev D. Its 185 °C maximum junction temperature and MSL Level 1 reflow rating further support deployment in under-hood automotive modules. The 3KASMC36AHE3/57T is designed for automotive power and signal line protection.
What package type does the 3KASMC36AHE3/57T use, and what are its mounting requirements?
The 3KASMC36AHE3/57T uses the DO-214AB (SMC) surface-mount package, with matte tin-plated leads compliant with J-STD-002 and JESD22-B102. Mounting requires the minimum recommended pad layout per Vishay's outline drawing: 0.126" (3.20 mm) minimum pad width, 0.185" (4.69 mm) maximum body length clearance, and thermal relief for optimal heat dissipation. The 3KASMC36AHE3/57T must be oriented with the cathode band aligned to the designated PCB silkscreen.
How does the 3KASMC36AHE3/57T differ from standard SMCJ-series TVS diodes?
The 3KASMC36AHE3/57T differs from standard SMCJ36A devices in three key ways: it delivers 3000 W peak pulse power (vs. 1500 W for SMCJ36A), is fully AEC-Q101 qualified (SMCJ36A is not), and supports 185 °C maximum junction temperature (SMCJ36A is rated to 175 °C). These enhancements make the 3KASMC36AHE3/57T suitable for next-generation automotive and high-reliability industrial systems where thermal margin and qualification rigor are critical.
What is the reverse leakage current specification for the 3KASMC36AHE3/57T at its stand-off voltage?
The 3KASMC36AHE3/57T specifies a maximum reverse leakage current (IR) of 1.0 µA at VWM = 36 V and TA = 25 °C. At elevated temperature (TJ = 150 °C), the leakage remains ≤20 µA under the same voltage condition. This low leakage preserves signal integrity in high-impedance sensor interfaces and minimizes standby power loss in always-on automotive subsystems. The 3KASMC36AHE3/57T maintains these values across its qualified operating range.
3KASMC36AHE3/57T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- PAR®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 36V
- Voltage - Breakdown (Min):
- 40V
- Voltage - Clamping (Max) @ Ipp:
- 58.1V
- Current - Peak Pulse (10/1000µs):
- 51.6A
- Power - Peak Pulse:
- 3000W (3kW)
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 185°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
3KASMC36AHE3/57T FAQ
1.How can I place an order for 3KASMC36AHE3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for 3KASMC36AHE3/57T 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 3KASMC36AHE3/57T reliable?
The price and inventory of 3KASMC36AHE3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 3KASMC36AHE3/57T is usually 5 days.
3.What payment methods are accepted for 3KASMC36AHE3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 3KASMC36AHE3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 3KASMC36AHE3/57T?
3KASMC36AHE3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 3KASMC36AHE3/57T 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 3KASMC36AHE3/57T?
For technical support, including 3KASMC36AHE3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 3KASMC36AHE3/57T requirements.
6.How does Aetrix verify that 3KASMC36AHE3/57T is sourced from the original manufacturer or authorized distributors?
All 3KASMC36AHE3/57T 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 3KASMC36AHE3/57T meets industry standards.
7.What is the process for return or replacement of 3KASMC36AHE3/57T?
All 3KASMC36AHE3/57T units undergo pre-shipment inspection (PSI). If there is an issue with 3KASMC36AHE3/57T, 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 3KASMC36AHE3/57T part is unused and in its original packaging.
Return procedure for 3KASMC36AHE3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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