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Vishay General Semiconductor - Diodes Division 3KASMC36AHE3_A/I
- Part No.:
- 3KASMC36AHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
3KASMC36AHE3_A/I.pdf
- Description:
- TVS DIODE 36VWM 58.1VC DO214AB
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
3KASMC36AHE3_A/I 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, 58.1 V clamping voltage at 51.6 A peak pulse current, and 3000 W peak pulse power with 10/1000 μs waveform - deployed for automotive-grade overvoltage protection of MOSFETs and sensor signal lines.
For engineers reviewing the 3KASMC36AHE3_A/I datasheet, 3KASMC36AHE3_A/I pinout, 3KASMC36AHE3_A/I application, or 3KASMC36AHE3_A/I equivalent, key selection criteria include AEC-Q101 qualification, TJ = 185 °C maximum junction temperature, uni-directional polarity, MSL Level 1 rating, and DO-214AB thermal resistance (RθJA = 77.5 °C/W).
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to achieve high-temperature stability up to 185 °C and low incremental surge resistance. Its clamping performance is characterized under standardized 10/1000 μs waveform testing per ANSI/IEEE C62.35, with guaranteed VC ≤ 58.1 V at IPPM = 51.6 A.
The device operates exclusively in uni-directional mode with cathode band marking, supports 200 A non-repetitive forward surge current (8.3 ms half-sine), and maintains <1.0 μA reverse leakage at VWM = 36 V and TJ = 150 °C - enabling robust protection in automotive powertrain and ADAS sensor interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 36 V - maximum continuous reverse operating voltage before clamping initiates |
| VBR (min/max) | 40.0 V / 44.2 V at IT = 1 mA - ensures predictable turn-on threshold across production lot |
| VC @ IPPM | 58.1 V at 51.6 A - limits transient-induced stress on downstream ICs during 10/1000 μs surges |
| PPPM | 3000 W - delivers high-energy surge absorption capability without thermal runaway |
| TJ max. | +185 °C - enables operation in under-hood automotive environments and industrial motor drives |
| Polarity | Uni-directional - protects against positive-going transients only; requires correct orientation in circuit |
| Package | DO-214AB (SMC) - industry-standard SMT outline with 77.5 °C/W junction-to-ambient thermal resistance |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, matte tin-plated leads, cathode indicated by color band. Complies with J-STD-002 and JESD 22-B102 solderability standards and JESD 201 Class 2 whisker test (HM3 suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction | Connected to protected line's lower-potential side (e.g., ground or return path) |
| Cathode | Current exit terminal during forward conduction; clamping node | Connected to protected line's higher-potential side (e.g., supply rail or signal line); marked by band |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and body electronics |
| Junction passivation optimized design | Enables stable electrical parameters and reliability under 185 °C junction temperature |
| MSL Level 1 (260 °C peak) | Allows single-reflow assembly without moisture-related damage or popcorn effect |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ISO 7637-2 Pulse 1/2a) |
| Excellent clamping ratio (VC/VBR ≈ 1.39) | Provides tight voltage limiting margin between breakdown and clamping thresholds |
Applications
| Automotive Powertrain ECUs | Industrial Motor Drive Control Boards |
|---|---|
Use Scenario: Protection of 12 V/24 V supply rails against load dump and inductive switching transients in engine control modules. IC Role / Device Role / Timing Role: Uni-directional TVS clamp placed between battery input and DC-DC converter input stage. Use Value: Withstands 3000 W surges and operates reliably at TJ = 185 °C, meeting ISO 16750-2 requirements for under-hood environments. |
Use Scenario: Safeguarding gate drivers and current-sense amplifiers from flyback spikes in IGBT-based variable-frequency drives. IC Role / Device Role / Timing Role: Fast-response transient suppressor on isolated signal paths feeding PWM controllers. Use Value: 51.6 A peak pulse current handling and 58.1 V clamping limit stress on ±15 V logic interfaces during 10/1000 μs surges. |
| ADAS Camera Sensor Interfaces | Telecom Base Station Power Supplies |
Use Scenario: Shielding MIPI CSI-2 data lines and power rails in automotive surround-view camera modules from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance TVS placed adjacent to connector entry points on FPC flex circuits. Use Value: Meets AEC-Q101 and provides sub-1 μA leakage at 36 V, preserving signal integrity in high-speed analog video paths. |
Use Scenario: Protecting 48 V telecom rectifier outputs from lightning-induced surges in outdoor base station cabinets. IC Role / Device Role / Timing Role: Primary-level surge suppression before DC distribution bus and secondary converters. Use Value: 3000 W peak power rating and DO-214AB mechanical robustness support long-term field reliability in harsh environmental conditions. |
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-E3/57T | Same DO-214AC (SMA) package; lower PPPM (400 W); VBR = 40–44.4 V; RθJA = 110 °C/W | Limited to lower-energy transients; unsuitable for automotive load dump per ISO 16750-2 | Select when space-constrained layouts require smaller footprint and surge energy is ≤400 W |
| SMCJ36AHE3_A/I | Same DO-214AB (SMC) package; identical VWM/VBR/VC specs; same AEC-Q101 qualification; differs in marking code and tape/reel packaging | No functional or performance difference; fully interchangeable in circuit and thermal design | Prefer for direct drop-in replacement where existing BOM references SMCJ36AHE3_A/I |
Compared with SMAJ36A-E3/57T, 3KASMC36AHE3_A/I delivers 7.5× higher surge power handling and superior thermal dissipation; versus SMCJ36AHE3_A/I, it offers identical protection performance but reflects Vishay's updated PAR® process optimization for enhanced high-temperature stability.
Availability
3KASMC36AHE3_A/I is available at Aetrix Electronics and suitable for automotive powertrain ECUs, industrial motor drive control boards, ADAS camera sensor interfaces, and telecom base station power supplies requiring stable component supply and AEC-Q101-compliant surge protection.
Supply support for 3KASMC36AHE3_A/I 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, MOSFETs, and optoelectronics, with global manufacturing and testing facilities focused on high-reliability components.
The 3KASMC36AHE3_A/I belongs to Vishay's PAR® TVS family, engineered specifically for high-energy transient suppression in automotive and industrial systems demanding AEC-Q101 qualification and extended temperature operation.
FAQ
What is the clamping voltage of the 3KASMC36AHE3_A/I under standard test conditions?
The 3KASMC36AHE3_A/I has a maximum clamping voltage (VC) of 58.1 V when subjected to a 10/1000 μs waveform at peak pulse current (IPPM) of 51.6 A, measured per ANSI/IEEE C62.35. This value is guaranteed across the full operating temperature range and ensures safe voltage limiting for downstream 36 V-rated components. The 3KASMC36AHE3_A/I achieves this with low incremental surge resistance and optimized junction passivation.
Is the 3KASMC36AHE3_A/I suitable for automotive applications?
Yes, the 3KASMC36AHE3_A/I is AEC-Q101 qualified and rated for TJ = 185 °C, making it suitable for under-hood automotive applications including engine control units, transmission control modules, and ADAS sensor power rails. Its DO-214AB package meets MSL Level 1, and its 3000 W peak pulse power rating satisfies ISO 16750-2 load dump requirements. The 3KASMC36AHE3_A/I is explicitly listed in Vishay's automotive-grade TVS portfolio.
What does the "_A/I" suffix mean in 3KASMC36AHE3_A/I?
The "_A/I" suffix in 3KASMC36AHE3_A/I indicates a specific packaging configuration: "A" denotes the HM3 base part (RoHS-compliant, AEC-Q101 qualified), and "I" specifies 13-inch diameter plastic tape-and-reel delivery with 3500 units per reel. This matches Vishay's ordering code convention shown in Document 89962, Table "ORDERING INFORMATION", where 3KASMC36AHE3_A/I is explicitly listed with unit weight 0.211 g and delivery mode "13\" diameter plastic tape and reel".
How does the thermal performance of the 3KASMC36AHE3_A/I compare to similar TVS diodes?
The 3KASMC36AHE3_A/I has a typical junction-to-ambient thermal resistance (RθJA) of 77.5 °C/W when mounted on the minimum recommended pad layout, significantly lower than SMA-package alternatives like SMAJ36A-E3/57T (RθJA = 110 °C/W). This enables higher sustained power dissipation and improved reliability in high-temperature environments. The 3KASMC36AHE3_A/I also features RθJL = 18.3 °C/W, supporting efficient heat transfer to PCB copper planes.
Can the 3KASMC36AHE3_A/I replace the SMCJ36AHE3_A/I in an existing design?
Yes, the 3KASMC36AHE3_A/I is functionally and mechanically identical to the SMCJ36AHE3_A/I - same DO-214AB package, identical electrical specifications (VWM = 36 V, VBR = 40.0–44.2 V, VC = 58.1 V), AEC-Q101 qualification, and thermal characteristics. The only differences are internal process enhancements (PAR® optimization) and marking code; no PCB or schematic changes are required when substituting the 3KASMC36AHE3_A/I for the SMCJ36AHE3_A/I.
3KASMC36AHE3_A/I 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_A/I FAQ
1.How can I place an order for 3KASMC36AHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for 3KASMC36AHE3_A/I 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_A/I reliable?
The price and inventory of 3KASMC36AHE3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 3KASMC36AHE3_A/I is usually 5 days.
3.What payment methods are accepted for 3KASMC36AHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 3KASMC36AHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 3KASMC36AHE3_A/I?
3KASMC36AHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 3KASMC36AHE3_A/I 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_A/I?
For technical support, including 3KASMC36AHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 3KASMC36AHE3_A/I requirements.
6.How does Aetrix verify that 3KASMC36AHE3_A/I is sourced from the original manufacturer or authorized distributors?
All 3KASMC36AHE3_A/I 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_A/I meets industry standards.
7.What is the process for return or replacement of 3KASMC36AHE3_A/I?
All 3KASMC36AHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with 3KASMC36AHE3_A/I, 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_A/I part is unused and in its original packaging.
Return procedure for 3KASMC36AHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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