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Vishay General Semiconductor - Diodes Division 3KASMC10AHE3_A/H
- Part No.:
- 3KASMC10AHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
3KASMC10AHE3_A/H.pdf
- Description:
- TVS DIODE 10VWM 17VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,947
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Product details
Overview
3KASMC10AHE3_A/H from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in DO-214AB (SMC) package, rated for 10 V stand-off voltage, 11.1–12.3 V breakdown at 1 mA, 3000 W peak pulse power (10/1000 μs), and 185 °C maximum junction temperature - deployed for automotive-grade overvoltage protection of MOSFETs and sensor signal lines.
For engineers reviewing the 3KASMC10AHE3_A/H datasheet, 3KASMC10AHE3_A/H pinout, 3KASMC10AHE3_A/H application, or 3KASMC10AHE3_A/H equivalent, key selection criteria include clamping voltage (17.0 V at 177 A), unidirectional polarity, AEC-Q101 qualification, MSL Level 1 rating, and thermal resistance (RθJA = 77.5 °C/W) under standard PCB mounting.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to achieve stable clamping performance up to 185 °C junction temperature, with low incremental surge resistance and fast response time suitable for suppressing transients from inductive load switching. It operates exclusively in unidirectional mode and meets J-STD-020 MSL Level 1 reflow profile (260 °C peak).
The device delivers 177 A peak pulse current (IPPM) at 17.0 V clamping voltage under 10/1000 μs waveform, with 1.0 mA test current defining breakdown voltage and 5.0 μA max reverse leakage at 10 V stand-off. Its thermal design supports 6.0 W steady-state power dissipation on infinite heatsink at TL = 75 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 11.1 V / 12.3 V at IT = 1 mA - Ensures reliable turn-on margin above VWM |
| PPPM | 3000 W (10/1000 μs) - Withstands high-energy surges common in automotive load-dump events |
| VC @ IPPM | 17.0 V at 177 A - Limits protected circuit voltage during worst-case transient |
| TJ max. | 185 °C - Enables operation in under-hood automotive environments without derating |
| RθJA | 77.5 °C/W - Defines thermal rise above ambient under standard SMT pad layout |
| AEC-Q101 | Qualified - Validated for automotive electronic systems per stress-test requirements |
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 JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to ground or lower-potential node in unidirectional clamp configuration |
| Cathode | Reverse-biased clamping terminal | Connected to protected line; conducts during overvoltage to shunt surge current to ground |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation | Optimized anisotropic rectifier structure ensures stable VBR and leakage across temperature and life cycle |
| Clamping performance | 17.0 V clamping at 177 A enables robust protection of 12 V automotive electronics without overstressing downstream ICs |
| Thermal capability | 185 °C TJ max. allows direct placement near hot components (e.g., power MOSFETs, motor drivers) |
| Reliability compliance | AEC-Q101 qualification and MSL Level 1 rating support automated assembly and long-term field reliability in automotive applications |
| Surge handling | 3000 W peak pulse power (10/1000 μs) exceeds ISO 7637-2 Pulse 5a requirements for 12 V systems |
Applications
| Automotive Power Distribution | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V supply rails in body control modules against load-dump transients up to 35 V. IC Role / Device Role / Timing Role: Unidirectional TVS clamping element placed between battery rail and DC-DC input. Use Value: Limits transient voltage to ≤17.0 V, preventing damage to downstream regulators and microcontrollers rated for 20 V absolute max. |
Use Scenario: Shielding analog output lines of pressure/temperature sensors from ESD and inductive coupling in factory automation. IC Role / Device Role / Timing Role: Low-capacitance (<100 pF) unidirectional clamp on 0–5 V signal path. Use Value: Maintains signal integrity while diverting >177 A surge current away from precision ADC inputs. |
| Automotive Lighting Drivers | Consumer Power Adapter Input Stage |
Use Scenario: Safeguarding LED driver ICs in headlamp modules exposed to alternator ripple and relay bounce. IC Role / Device Role / Timing Role: Primary overvoltage suppression device on high-side switch supply input. Use Value: Fast response time and 185 °C rating ensure uninterrupted operation during sustained engine heat soak conditions. |
Use Scenario: Input-stage surge protection for universal AC/DC adapters subjected to line transients per IEC 61000-4-5. IC Role / Device Role / Timing Role: Standoff-rated TVS placed after bridge rectifier to clamp secondary-side surges. Use Value: 3000 W rating handles combination wave (1.2/50 μs + 8/20 μs) surges without degradation over 100,000 cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ10A | Lower PPPM (400 W), same DO-214AC (SMA) package, VC = 16.0 V @ 25.6 A | Not AEC-Q101 qualified; limited to consumer/industrial use | Select when cost sensitivity outweighs automotive reliability requirements and surge energy is <10% of 3KASMC10AHE3_A/H capability |
| SMCJ10A | Same DO-214AB (SMC) package, PPPM = 1500 W, VC = 17.0 V @ 88.2 A, AEC-Q101 qualified | Half the peak pulse power; insufficient for severe load-dump scenarios | Choose where space-constrained layouts require identical footprint but system-level surge testing confirms 1500 W sufficiency |
Compared with SMAJ10A and SMCJ10A, the 3KASMC10AHE3_A/H provides 2× higher peak pulse power than SMCJ10A and full AEC-Q101 validation absent in SMAJ10A - making it the only option meeting both high-energy automotive surge and production qualification requirements simultaneously.
Availability
3KASMC10AHE3_A/H is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor interface protection, automotive lighting drivers, and consumer power adapter input stage applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for 3KASMC10AHE3_A/H 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 focus on high-reliability, high-temperature, and automotive-qualified components.
The 3KASMC10AHE3_A/H belongs to Vishay's PAR® (Protection Against Transients) series - engineered specifically for robust transient suppression in harsh automotive and industrial environments where thermal stability and AEC-Q101 compliance are mandatory.
FAQ
What is the clamping voltage of the 3KASMC10AHE3_A/H under peak surge conditions?
The 3KASMC10AHE3_A/H exhibits a maximum clamping voltage (VC) of 17.0 V when subjected to its rated peak pulse current of 177 A using a 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 standards and ensures downstream 12 V electronics remain within safe operating limits during transient events.
Is the 3KASMC10AHE3_A/H suitable for automotive applications?
Yes, the 3KASMC10AHE3_A/H is AEC-Q101 qualified and rated for 185 °C maximum junction temperature, making it suitable for under-hood automotive applications such as body control modules, lighting drivers, and power distribution units where high thermal and reliability demands exist.
What package type does the 3KASMC10AHE3_A/H use, and what are its mounting requirements?
The 3KASMC10AHE3_A/H uses the DO-214AB (SMC) surface-mount package with matte tin-plated leads. It requires the minimum recommended pad layout per Vishay specification, supports MSL Level 1 reflow (peak 260 °C), and must be mounted with cathode band oriented per schematic polarity to ensure correct unidirectional clamping behavior.
How does the 3KASMC10AHE3_A/H compare to standard SMAJ-series TVS diodes?
The 3KASMC10AHE3_A/H delivers 3000 W peak pulse power - 7.5× higher than the 400 W rating of SMAJ10A - while sharing the same 10 V stand-off voltage. Unlike SMAJ10A, the 3KASMC10AHE3_A/H is AEC-Q101 qualified and rated for 185 °C operation, enabling use in mission-critical automotive systems where SMAJ10A is restricted to commercial applications.
What is the reverse leakage current specification for the 3KASMC10AHE3_A/H at its stand-off voltage?
At VWM = 10 V and TA = 25 °C, the 3KASMC10AHE3_A/H specifies a maximum reverse leakage current (IR) of 5.0 μA. At elevated temperature (TJ = 150 °C), leakage increases to a maximum of 50 μA - a value verified per production test and critical for low-power always-on circuits.
3KASMC10AHE3_A/H 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):
- 10V
- Voltage - Breakdown (Min):
- 11.1V
- Voltage - Clamping (Max) @ Ipp:
- 17V
- Current - Peak Pulse (10/1000µs):
- 177A
- 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)
3KASMC10AHE3_A/H FAQ
1.How can I place an order for 3KASMC10AHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for 3KASMC10AHE3_A/H 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 3KASMC10AHE3_A/H reliable?
The price and inventory of 3KASMC10AHE3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 3KASMC10AHE3_A/H is usually 5 days.
3.What payment methods are accepted for 3KASMC10AHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 3KASMC10AHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 3KASMC10AHE3_A/H?
3KASMC10AHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 3KASMC10AHE3_A/H 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 3KASMC10AHE3_A/H?
For technical support, including 3KASMC10AHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 3KASMC10AHE3_A/H requirements.
6.How does Aetrix verify that 3KASMC10AHE3_A/H is sourced from the original manufacturer or authorized distributors?
All 3KASMC10AHE3_A/H 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 3KASMC10AHE3_A/H meets industry standards.
7.What is the process for return or replacement of 3KASMC10AHE3_A/H?
All 3KASMC10AHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with 3KASMC10AHE3_A/H, 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 3KASMC10AHE3_A/H part is unused and in its original packaging.
Return procedure for 3KASMC10AHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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