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Vishay General Semiconductor - Diodes Division 3KASMC10AHE3/57T
- Part No.:
- 3KASMC10AHE3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
3KASMC10AHE3/57T.pdf
- Description:
- TVS DIODE 10VWM 17VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,923
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Product details
Overview
3KASMC10AHE3/57T 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), 177 A peak surge current, and 17.0 V clamping voltage at IPPM - deployed for automotive power line and sensor signal line protection.
For engineers reviewing the 3KASMC10AHE3/57T datasheet, 3KASMC10AHE3/57T pinout, 3KASMC10AHE3/57T application, or 3KASMC10AHE3/57T equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, TJ = 185 °C operation, MSL Level 1 moisture sensitivity, and 17.0 V clamping performance under 177 A transient stress.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to deliver stable clamping under repetitive transients while maintaining low incremental surge resistance and fast response time (<1 ns). Its junction design supports continuous operation up to +185 °C and meets automotive-grade reliability requirements per AEC-Q101.
The device operates exclusively in unidirectional mode with cathode band marking, exhibits 5.0 μA max reverse leakage at 10 V, and achieves 17.0 V clamping at 177 A - enabling robust protection of 12 V automotive systems against ISO 7637-2 load dump and inductive switching spikes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - maximum DC or continuous reverse operating voltage before conduction begins |
| VBR (min/max) | 11.1 V / 12.3 V at IT = 1 mA - guaranteed breakdown range defining turn-on threshold consistency |
| VC @ IPPM | 17.0 V at 177 A - clamping voltage limiting downstream circuit stress during worst-case 3000 W transient |
| PPPM | 3000 W (10/1000 μs) - peak pulse power handling capacity for automotive-level surge immunity |
| TJ max. | +185 °C - enables placement near high-temperature engine control units without derating |
| AEC-Q101 | Qualified - validated for automotive electronics per stress test requirements including HTGB, HTRB, TCT |
| MSL Level | Level 1 (260 °C peak reflow) - supports standard SMT assembly without baking preconditioning |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, matte tin-plated leads, cathode indicated by color band. Dimensions: 7.11 mm × 6.22 mm × 2.90 mm (L × W × H).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / transient return path | Connected to protected line ground or low-side reference; completes clamping loop during overvoltage event |
| Cathode | Transient voltage sensing and clamping node | Marked with band; connected to protected line (e.g., 12 V rail or sensor output); conducts when V > VBR |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation | Optimized anisotropic rectifier process ensures stable VBR and low leakage across temperature and life cycle |
| High-temperature capability | TJ = 185 °C rating allows direct mounting on hot ECU PCBs without thermal derating penalties |
| Clamping performance | 17.0 V VC at 177 A provides margin below typical 20 V automotive IC absolute maximum ratings |
| Surge robustness | 200 A IFSM (8.3 ms half-sine) supports repeated load-dump events without degradation |
| Automotive compliance | AEC-Q101 qualification and RoHS-compliant HM3 suffix meet Tier-1 supply chain requirements |
Applications
| Automotive Power Line Protection | Engine Control Unit (ECU) Input Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed power rails in passenger vehicles against ISO 7637-2 Pulse 5a (load dump) and Pulse 1/2a (inductive switch-off). IC Role / Device Role / Timing Role: Unidirectional TVS clamp absorbing >3000 W transient energy within nanoseconds. Use Value: Limits rail voltage to ≤17.0 V during 177 A surge, preventing damage to PMICs and microcontrollers downstream. |
Use Scenario: Safeguarding analog/digital inputs of engine control modules exposed to alternator ripple and ignition coil back-EMF. IC Role / Device Role / Timing Role: Fast-response voltage clamp placed directly at connector interface before signal conditioning circuitry. Use Value: Maintains <5.0 μA leakage at 10 V, ensuring minimal impact on sensor bias networks during normal operation. |
| Automotive Sensor Signal Line Protection | Industrial CAN Bus Node Protection |
Use Scenario: Shielding LIN or analog sensor outputs (e.g., oxygen, throttle position) from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance unidirectional TVS suppressing transients on single-ended signal paths. Use Value: Clamps to 17.0 V before sensor front-end ICs exceed their 20 V absolute maximum rating. |
Use Scenario: Adding secondary overvoltage protection to CANH/CANL lines in industrial gateways where primary protection resides upstream. IC Role / Device Role / Timing Role: Standby-mode TVS providing fail-safe clamping during bus fault conditions (e.g., short-to-battery). Use Value: Withstands 185 °C junction temperature, enabling placement in sealed enclosures without airflow. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ10A | Lower PPPM (600 W), same VWM (10 V), DO-214AA (SMB) package, RθJA = 85 °C/W | Rated for consumer/industrial use only; not AEC-Q101 qualified | Select when cost sensitivity outweighs automotive qualification and surge margin requirements |
| 1.5KE10A | Higher VBR (11.4–12.6 V), same clamping (17.0 V), axial leaded DO-201 package, no MSL rating | Requires through-hole assembly; unsuitable for automated SMT production or high-reliability automotive environments | Choose only for legacy board redesigns where footprint change is prohibited and reflow compatibility is not required |
Compared with SMBJ10A and 1.5KE10A, the 3KASMC10AHE3/57T delivers triple the peak pulse power, automotive-grade qualification, and SMT-ready packaging - making it the sole option for new AEC-Q101-compliant designs requiring ≥3000 W transient immunity in DO-214AB footprint.
Availability
3KASMC10AHE3/57T is available at Aetrix Electronics and suitable for automotive power line protection, ECU input safeguarding, sensor signal line hardening, and industrial CAN node surge resilience requiring stable component supply and long-term lifecycle support.
Supply support for 3KASMC10AHE3/57T 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, MOSFETs, and TVS devices with emphasis on high-reliability, high-temperature, and automotive-qualified solutions.
The 3KASMC10AHE3/57T belongs to Vishay's PAR® (Protective Analog Rectifier) TVS family, engineered specifically for demanding automotive and industrial environments where sustained 185 °C operation and AEC-Q101 validation are mandatory.
FAQ
What is the clamping voltage of the 3KASMC10AHE3/57T under maximum surge conditions?
The 3KASMC10AHE3/57T clamps to 17.0 V at its peak pulse current of 177 A (10/1000 μs waveform). This value is measured and guaranteed per the Vishay datasheet (Doc. #89962, Rev. 05-Mar-13), ensuring predictable overvoltage limiting for downstream 20 V-rated ICs in automotive applications.
Is the 3KASMC10AHE3/57T qualified for automotive use?
Yes, the 3KASMC10AHE3/57T is AEC-Q101 qualified and carries the HM3 suffix indicating RoHS compliance and whisker resistance per JESD201 Class 2. It is explicitly listed in Vishay's qualified product list for automotive electronics, supporting deployment in ECUs, body control modules, and ADAS sensors.
What package type does the 3KASMC10AHE3/57T use, and what are its key mechanical features?
The 3KASMC10AHE3/57T uses the DO-214AB (SMC) surface-mount package: 7.11 mm × 6.22 mm × 2.90 mm, with matte tin-plated leads solderable per J-STD-002, MSL Level 1 rated for 260 °C peak reflow, and UL 94 V-0 molding compound. Cathode is marked by a visible band.
Does the 3KASMC10AHE3/57T support bidirectional transient suppression?
No, the 3KASMC10AHE3/57T is unidirectional only, as confirmed in the Vishay datasheet "FEATURES" section and electrical characteristics table. It conducts only when cathode voltage exceeds anode by ≥VBR; for bidirectional protection, separate devices or a dedicated bidirectional TVS (e.g., 3KASMC10CA) must be used.
What is the maximum operating junction temperature for the 3KASMC10AHE3/57T?
The 3KASMC10AHE3/57T has a maximum junction temperature (TJ max.) of +185 °C, verified per AEC-Q101 stress testing and documented in the "PRIMARY CHARACTERISTICS" table. This enables reliable operation adjacent to high-power components in engine compartments and transmission control units.
3KASMC10AHE3/57T 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):
- 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)
3KASMC10AHE3/57T FAQ
1.How can I place an order for 3KASMC10AHE3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for 3KASMC10AHE3/57T 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 3KASMC10AHE3/57T reliable?
The price and inventory of 3KASMC10AHE3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 3KASMC10AHE3/57T is usually 5 days.
3.What payment methods are accepted for 3KASMC10AHE3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 3KASMC10AHE3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 3KASMC10AHE3/57T?
3KASMC10AHE3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 3KASMC10AHE3/57T 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 3KASMC10AHE3/57T?
For technical support, including 3KASMC10AHE3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 3KASMC10AHE3/57T requirements.
6.How does Aetrix verify that 3KASMC10AHE3/57T is sourced from the original manufacturer or authorized distributors?
All 3KASMC10AHE3/57T 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 3KASMC10AHE3/57T meets industry standards.
7.What is the process for return or replacement of 3KASMC10AHE3/57T?
All 3KASMC10AHE3/57T units undergo pre-shipment inspection (PSI). If there is an issue with 3KASMC10AHE3/57T, 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 3KASMC10AHE3/57T part is unused and in its original packaging.
Return procedure for 3KASMC10AHE3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
3KASMC10AHE3/57T Tags
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