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Vishay General Semiconductor - Diodes Division 3KASMC10HE3_A/I
- Part No.:
- 3KASMC10HE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
3KASMC10HE3_A/I.pdf
- Description:
- TVS DIODE 10VWM 18.8VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,114
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Product details
Overview
3KASMC10HE3_A/I 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 (VWM), 11.1–12.3 V breakdown (VBR), 3000 W peak pulse power (10/1000 μs), 177 A peak surge current (IPPM), and 17.0 V clamping voltage (VC) - designed for automotive-grade overvoltage protection of power rails and signal lines.
For engineers reviewing the 3KASMC10HE3_A/I datasheet, 3KASMC10HE3_A/I pinout, 3KASMC10HE3_A/I application, or 3KASMC10HE3_A/I equivalent, key selection criteria include AEC-Q101 qualification, TJ = 185 °C maximum junction temperature, MSL Level 1 rating, low incremental surge resistance, and uni-directional polarity with cathode band marking - critical for high-reliability automotive and industrial power interface design.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology to deliver stable clamping under repetitive transients and elevated ambient temperatures. Its 185 °C junction rating enables operation in engine bay and powertrain environments where thermal derating of conventional TVS devices limits effectiveness.
The device exhibits fast response time (<1 ns), low dynamic impedance, and excellent clamping ratio (VC/VBR ≈ 1.45), ensuring robust protection for downstream MOSFETs and ICs against inductive switching spikes and ISO 7637-2 load dump surges. It meets JESD22-B102 solderability and JESD201 Class 2 whisker resistance requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC bias margin for 12 V automotive systems. |
| VBR (min/max) | 11.1 V / 12.3 V at 1 mA - Confirmed breakdown threshold ensures predictable turn-on during transient events without premature conduction. |
| VC @ IPPM | 17.0 V at 177 A - Clamping voltage under full 3000 W surge; limits stress on protected 12 V rail components to safe levels. |
| PPPM | 3000 W (10/1000 μs) - Sustains high-energy transients common in automotive load-dump and inductive kick scenarios. |
| TJ max | +185 °C - Enables reliable operation in under-hood applications without thermal shutdown or parameter drift. |
| Polarity | Uni-directional - Provides forward-conducting path only in reverse-biased fault condition; requires correct orientation in series with protected line. |
| MSL Level | Level 1 (260 °C peak reflow) - Supports standard SMT assembly without moisture sensitivity concerns or baking requirements. |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, molded plastic case with matte tin-plated leads. Cathode identified by color band at one end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or low-impedance return path; forms clamping loop with cathode during transient. |
| Cathode | High-side transient input terminal | Connected to protected line (e.g., 12 V rail); conducts surge current to ground when voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements including HTGB, HTRB, and TCT - supports PPAP documentation. |
| Junction passivation | Optimized die surface treatment prevents leakage increase and parametric shift under high humidity and temperature cycling. |
| Low Rsurge | Minimal incremental resistance during surge ensures VC remains tightly controlled and energy dissipation is predictable. |
| UL 94 V-0 molding compound | Flame-retardant encapsulation meets automotive interior material safety standards and reduces fire propagation risk. |
| Matte tin plating | RoHS-compliant, solderable per J-STD-002 and JESD22-B102 - ensures consistent wetting and joint reliability in lead-free reflow. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs, lighting modules, and body control units from ISO 7637-2 Pulse 5a (load dump) and Pulse 1 (inductive switch-off). IC Role / Device Role / Timing Role: Uni-directional TVS clamp placed between power input and ground, activated within nanoseconds upon overvoltage detection. Use Value: Limits transient voltage to ≤17.0 V, preventing latch-up or gate oxide damage in downstream PMICs and microcontrollers rated for 16 V absolute max. |
Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) connected to ADC inputs in factory automation PLCs exposed to relay coil flyback. IC Role / Device Role / Timing Role: Low-capacitance TVS placed across differential or single-ended signal pair to shunt ESD and switching noise to chassis ground. Use Value: Maintains signal integrity with <10 pF junction capacitance at zero bias, while clamping transients to sub-20 V levels without loading the sensor output. |
| Telecom DC Power Interface | Consumer Appliance Motor Drive Protection |
Use Scenario: Input-stage protection for PoE-powered network switches and base station RF modules subjected to lightning-induced surges on 48 V DC supply lines. IC Role / Device Role / Timing Role: Primary overvoltage suppression element upstream of DC/DC converters, sized for 3000 W peak power handling. Use Value: Absorbs multi-kW surges without failure, preserving converter FETs and enabling compliance with IEC 61000-4-5 Level 4 (4 kV line-earth). |
Use Scenario: Suppressing back-EMF spikes generated by brushed DC motors in washing machines, HVAC blowers, and power tools during commutation. IC Role / Device Role / Timing Role: Parallel-connected TVS across motor terminals to clamp inductive kick before it reaches driver ICs or MCU GPIOs. Use Value: Withstands 200 A non-repetitive forward surge (IFSM), eliminating need for external snubbers and reducing BOM count in cost-sensitive white goods. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ10A | Same DO-214AC (SMA) package but lower PPPM (400 W), lower IPPM (32.4 A), and VBR range 11.1–12.3 V identical; not AEC-Q101 qualified. | Limited to consumer/industrial use; unsuitable for automotive due to lack of qualification and reduced surge capability. | Select only for cost-sensitive non-automotive designs where 400 W surge margin suffices. |
| SMCJ10A | Same DO-214AB (SMC) package, identical 3000 W PPPM and 177 A IPPM, same VBR/VC specs; AEC-Q101 qualified but rated for TJ = 175 °C (vs. 185 °C). | Acceptable for most automotive applications, but marginal in extended-temperature engine compartments (>175 °C ambient + self-heating). | Prefer 3KASMC10HE3_A/I where sustained operation above 175 °C junction is required, e.g., near exhaust manifolds or inverters. |
Compared with SMAJ10A and SMCJ10A, the 3KASMC10HE3_A/I delivers superior thermal robustness (185 °C TJ max), verified AEC-Q101 compliance, and identical surge performance in the same SMC footprint - making it the optimal choice for next-generation automotive power interfaces demanding extended lifetime under thermal stress.
Availability
3KASMC10HE3_A/I is available at Aetrix Electronics and suitable for automotive ECU design, industrial sensor interface development, and telecom DC power system integration requiring stable component supply, long-term lifecycle support, and traceable RoHS-compliant sourcing.
Supply support for 3KASMC10HE3_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 is a global leader in discrete semiconductors, specializing in high-reliability diodes, MOSFETs, and optoelectronics for automotive, industrial, and computing markets.
The 3KASMC family was engineered specifically for AEC-Q101-compliant transient suppression in harsh automotive environments, emphasizing high-temperature stability, surge endurance, and process-controlled consistency across production lots.
FAQ
What is the maximum junction temperature rating for the 3KASMC10HE3_A/I?
The 3KASMC10HE3_A/I is rated for a maximum junction temperature (TJ) of +185 °C. This specification enables reliable operation in high-ambient-temperature locations such as engine compartments and power inverters. The 3KASMC10HE3_A/I maintains stable VBR and VC parameters up to this limit, as validated per AEC-Q101 thermal stress testing protocols.
Is the 3KASMC10HE3_A/I AEC-Q101 qualified?
Yes, the 3KASMC10HE3_A/I is fully AEC-Q101 qualified. This qualification covers stress tests including high-temperature reverse bias (HTRB), high-temperature gate bias (HTGB), temperature cycling (TCT), and unbiased highly accelerated stress test (UHAST). The 3KASMC10HE3_A/I meets all requirements for automotive electronic component deployment.
What does the "_A/I" suffix indicate in 3KASMC10HE3_A/I?
The "_A/I" suffix in 3KASMC10HE3_A/I denotes the packaging configuration: "A" indicates the HM3 base part (RoHS-compliant and AEC-Q101 qualified), and "I" specifies the delivery mode - 13-inch diameter plastic tape and reel, with a base quantity of 3500 units. This matches the ordering code 3KASMC10AHM3_A/I shown in Vishay's official documentation.
What is the clamping voltage of the 3KASMC10HE3_A/I at its rated peak pulse current?
The 3KASMC10HE3_A/I has a maximum clamping voltage (VC) of 17.0 V at its rated peak pulse current (IPPM) of 177 A, measured using the standard 10/1000 μs waveform. This clamping level ensures protected 12 V circuits remain within safe operating margins during high-energy transients, directly supporting design compliance with ISO 16750-2.
Does the 3KASMC10HE3_A/I have uni-directional or bi-directional polarity?
The 3KASMC10HE3_A/I is a uni-directional TVS diode, as confirmed in the Vishay datasheet. It features a cathode band marking and conducts only when reverse-biased beyond its breakdown voltage. This polarity configuration is optimized for DC power rail protection where forward conduction is not required.
3KASMC10HE3_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):
- 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_A/I FAQ
1.How can I place an order for 3KASMC10HE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for 3KASMC10HE3_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 3KASMC10HE3_A/I reliable?
The price and inventory of 3KASMC10HE3_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 3KASMC10HE3_A/I is usually 5 days.
3.What payment methods are accepted for 3KASMC10HE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 3KASMC10HE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 3KASMC10HE3_A/I?
3KASMC10HE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 3KASMC10HE3_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 3KASMC10HE3_A/I?
For technical support, including 3KASMC10HE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 3KASMC10HE3_A/I requirements.
6.How does Aetrix verify that 3KASMC10HE3_A/I is sourced from the original manufacturer or authorized distributors?
All 3KASMC10HE3_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 3KASMC10HE3_A/I meets industry standards.
7.What is the process for return or replacement of 3KASMC10HE3_A/I?
All 3KASMC10HE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with 3KASMC10HE3_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 3KASMC10HE3_A/I part is unused and in its original packaging.
Return procedure for 3KASMC10HE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
3KASMC10HE3_A/I Tags
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