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Vishay General Semiconductor - Diodes Division 3KASMC10HE3/57T
- Part No.:
- 3KASMC10HE3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
3KASMC10HE3/57T.pdf
- Description:
- TVS DIODE 10VWM 18.8VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,059
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Product details
Overview
3KASMC10HE3/57T from Vishay General Semiconductor is a unidirectional surface-mount PAR® Transient Voltage Suppressor (TVS) diode designed for high-reliability overvoltage protection in automotive and industrial power rails. It features a 10 V stand-off voltage (VWM), 11.1–12.3 V breakdown voltage (VBR), 3000 W peak pulse power (10/1000 μs), 177 A peak pulse current (IPPM), and 17.0 V clamping voltage (VC) at rated surge, operating up to TJ = 185 °C.
For engineers reviewing the 3KASMC10HE3/57T datasheet, 3KASMC10HE3/57T pinout, 3KASMC10HE3/57T application, or 3KASMC10HE3/57T equivalent, this device is selected for robust ESD/surge protection on 12 V automotive power inputs, MOSFET gate drivers, and sensor supply lines where high-temperature stability and AEC-Q101 qualification are mandatory.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology optimized for junction stability under repetitive surge stress and elevated temperature operation. Its unidirectional polarity and DO-214AB (SMC) package support high-current transient suppression without reverse conduction during normal operation.
It delivers low incremental surge resistance and fast response time (<1 ns), enabling effective clamping of inductive switching transients and lightning-induced surges on DC power and signal lines. Thermal resistance is characterized at RθJA = 77.5 °C/W and RθJL = 18.3 °C/W, supporting reliable thermal management on standard PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - Maximum continuous reverse working voltage before clamping begins; sets operating margin for 12 V automotive systems. |
| VBR (min/max) | 11.1 V / 12.3 V - Breakdown occurs within this range at 1 mA test current; ensures predictable turn-on threshold. |
| VC @ IPPM | 17.0 V - Clamping voltage at 177 A peak pulse; limits downstream voltage stress during 3000 W transient events. |
| PPPM | 3000 W - Peak pulse power handling with 10/1000 μs waveform; meets ISO 7637-2 Pulse 5a severity levels. |
| TJ max. | +185 °C - Maximum junction temperature rating; enables use in under-hood automotive environments. |
| AEC-Q101 | Qualified - Certified for automotive electronic components per stress test requirements including HTGB, HTRB, and TCT. |
| Package | DO-214AB (SMC) - Industry-standard surface-mount outline with 7.11 mm × 6.60 mm footprint and matte tin-plated leads. |
Pinout & Package
Package: DO-214AB (SMC), molded case meeting UL 94 V-0 flammability rating; cathode indicated by color band; matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction | Connected to system ground or low-side reference; forms return path during clamping. |
| Cathode | Current exit terminal during reverse-biased clamping | Connected to protected line (e.g., 12 V rail); conducts surge current to ground when V > VBR. |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation | Optimized anisotropic rectifier process ensures stable leakage and breakdown behavior across 185 °C lifetime operation. |
| MSL Level 1 | Rated for reflow peak temperatures up to 260 °C without moisture-induced damage; no bake required prior to assembly. |
| Low clamping ratio (VC/VBR) | 1.42 (17.0 V / 12.0 V avg) - Tight clamping margin minimizes overvoltage exposure to downstream ICs. |
| High IFSM | 200 A - Withstands 8.3 ms half-sine surge pulses common in load-dump scenarios without degradation. |
| RoHS & Halogen-Free | Compliant per JEDEC JS709A and Directive 2011/65/EU; suitable for environmentally regulated automotive production. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs against load dump and jump-start transients per ISO 7637-2. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power input and ground to clamp surges above 12 V. Use Value: Limits peak voltage to ≤17.0 V during 3000 W transients, preserving MCU, CAN transceivers, and power regulators. |
Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance TVS connected across differential or single-ended signal lines to ground. Use Value: Sub-1 ns response prevents latch-up in precision op-amps and ADC front-ends while maintaining signal integrity. |
| MOSFET Gate Driver Protection | Telecom DC Power Input Protection |
Use Scenario: Safeguarding high-side N-channel MOSFET gates driven by PWM controllers in motor control modules. IC Role / Device Role / Timing Role: TVS placed between gate and source to suppress Miller-induced voltage spikes and shoot-through risks. Use Value: Clamps gate-source voltage to ≤17.0 V, preventing oxide breakdown and ensuring reliable switching at 185 °C junction temp. |
Use Scenario: Securing -48 V or +24 V telecom power supplies against lightning-induced surges on outdoor plant equipment. IC Role / Device Role / Timing Role: Primary-level unidirectional TVS on DC input bus before DC/DC converters and PMICs. Use Value: Absorbs 3000 W pulses without failure, maintaining uptime in NEBS-compliant infrastructure with extended thermal derating. |
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), lower IPPM (32.4 A), same VWM/VBR range, DO-214AC (SMA) package. | Targeted at consumer-grade or non-automotive applications with lower surge severity. | Select SMAJ10A only if system-level surge testing does not exceed IEC 61000-4-5 Level 3 (0.5 kV/1.0 kV). |
| 1.5KE10A | Higher power (1500 W), axial-leaded DO-201AD package, higher VF, not AEC-Q101 qualified. | Suitable for prototyping or non-automotive industrial boards where automated SMT is not required. | Choose 1.5KE10A only for through-hole assembly or legacy designs; not recommended for new automotive or high-reliability SMT designs. |
Compared with SMAJ10A and 1.5KE10A, the 3KASMC10HE3/57T provides 7.5× higher peak pulse power, AEC-Q101 qualification, and SMT-ready DO-214AB packaging-making it the sole option for production automotive electronics requiring validated high-temperature surge resilience.
Availability
3KASMC10HE3/57T is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor nodes, and telecom power supplies requiring stable component supply, long-term lifecycle assurance, and full traceability.
Supply support for 3KASMC10HE3/57T 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 high-reliability diodes, MOSFETs, and optoelectronics for automotive, industrial, and computing markets.
The 3KASMC series belongs to Vishay's PAR® TVS platform, engineered specifically for AEC-Q101-compliant overvoltage protection in harsh-environment automotive power systems and high-temperature industrial controls.
FAQ
What is the maximum clamping voltage of the 3KASMC10HE3/57T during a 3000 W transient event?
The 3KASMC10HE3/57T has a maximum clamping voltage (VC) of 17.0 V at its rated peak pulse current (IPPM) of 177 A, measured under the standardized 10/1000 μs waveform. This value is guaranteed per the Vishay datasheet (Doc. #89962, Rev. 05-Mar-13) and defines the upper voltage limit imposed on protected circuitry during worst-case surge conditions. The 3KASMC10HE3/57T maintains this clamping performance across its full operating temperature range.
Is the 3KASMC10HE3/57T qualified for automotive applications?
Yes, the 3KASMC10HE3/57T is AEC-Q101 qualified per the Vishay datasheet, confirming compliance with stress tests including high-temperature reverse bias (HTRB), high-temperature gate bias (HTGB), and temperature cycling (TCT). Its 185 °C maximum junction temperature and DO-214AB package with MSL Level 1 rating make it suitable for under-hood and powertrain applications. The 3KASMC10HE3/57T is explicitly listed in Vishay's AEC-Q101 qualified product matrix.
What is the package type and lead finish of the 3KASMC10HE3/57T?
The 3KASMC10HE3/57T uses the DO-214AB (SMC) surface-mount package with dimensions of 7.11 mm × 6.60 mm × 2.62 mm. Its leads are matte tin plated and meet solderability requirements per J-STD-002 and JESD 22-B102. The "HM3" suffix in the ordering code confirms RoHS compliance and AEC-Q101 qualification, and the "57T" denotes 7-inch tape-and-reel packaging with 850 units per reel. The 3KASMC10HE3/57T is not offered in any other package variant.
Does the 3KASMC10HE3/57T support bidirectional transient suppression?
No, the 3KASMC10HE3/57T is strictly unidirectional, as confirmed in the Vishay datasheet under FEATURES ("Available in uni-directional polarity only") and ELECTRICAL CHARACTERISTICS (no reverse breakdown specification). It conducts only during reverse-biased overvoltage events on the cathode side and blocks forward current beyond ~3.5 V. For bidirectional protection, a separate device such as the SMBJ10CA would be required - the 3KASMC10HE3/57T does not provide symmetrical clamping.
What is the thermal resistance and power derating behavior of the 3KASMC10HE3/57T?
The 3KASMC10HE3/57T has a typical junction-to-ambient thermal resistance (RθJA) of 77.5 °C/W and junction-to-leads resistance (RθJL) of 18.3 °C/W, measured on the minimum recommended pad layout. Its power dissipation (PD) is rated at 6.0 W at TL = 75 °C and derates linearly above TA = 25 °C per Figure 2 in the datasheet. At 125 °C ambient, usable power drops to ~3.3 W - critical for thermal design in enclosed automotive enclosures. The 3KASMC10HE3/57T must be mounted per Vishay's specified pad layout to achieve these ratings.
3KASMC10HE3/57T 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:
- 18.8V
- Current - Peak Pulse (10/1000µs):
- 160A
- 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)
3KASMC10HE3/57T FAQ
1.How can I place an order for 3KASMC10HE3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for 3KASMC10HE3/57T 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 3KASMC10HE3/57T reliable?
The price and inventory of 3KASMC10HE3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 3KASMC10HE3/57T is usually 5 days.
3.What payment methods are accepted for 3KASMC10HE3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 3KASMC10HE3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 3KASMC10HE3/57T?
3KASMC10HE3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 3KASMC10HE3/57T 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 3KASMC10HE3/57T?
For technical support, including 3KASMC10HE3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 3KASMC10HE3/57T requirements.
6.How does Aetrix verify that 3KASMC10HE3/57T is sourced from the original manufacturer or authorized distributors?
All 3KASMC10HE3/57T 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 3KASMC10HE3/57T meets industry standards.
7.What is the process for return or replacement of 3KASMC10HE3/57T?
All 3KASMC10HE3/57T units undergo pre-shipment inspection (PSI). If there is an issue with 3KASMC10HE3/57T, 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 3KASMC10HE3/57T part is unused and in its original packaging.
Return procedure for 3KASMC10HE3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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