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Vishay General Semiconductor - Diodes Division 3KASMC10AHM3_B/I
- Part No.:
- 3KASMC10AHM3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
3KASMC10AHM3_B/I.pdf
- Description:
- TVS DIODE 10VWM 17VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,704
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Product details
Overview
3KASMC10AHM3_B/I from Vishay General Semiconductor is a unidirectional surface-mount PAR® Transient Voltage Suppressor in SMC (DO-214AB) 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 pulse current, and 17.0 V clamping voltage at IPPM - used to protect automotive sensor signal lines and MOSFET gates against inductive switching transients.
For engineers reviewing the 3KASMC10AHM3_B/I datasheet, 3KASMC10AHM3_B/I pinout, 3KASMC10AHM3_B/I application, or 3KASMC10AHM3_B/I equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, TJ = 185 °C operation, MSL Level 1 rating, and halogen-free RoHS compliance per HM3 suffix.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology with junction passivation optimized for high-temperature stability. It delivers low incremental surge resistance and fast response time to clamp transient overvoltages before downstream ICs are damaged.
Designed for automotive-grade reliability, it supports operation up to 185 °C junction temperature and meets JESD201 Class 2 whisker testing. Its 10/1000 μs waveform rating and 17.0 V clamping at 177 A ensure robust protection for 12 V automotive systems under ISO 7637-2 Pulse 1/2a/5a conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - maximum continuous reverse operating voltage before leakage exceeds 5 μA |
| VBR (min/typ/max) | 11.1 / 11.7 / 12.3 V at 1 mA - defines precise breakdown threshold for clamping onset |
| VC @ IPPM | 17.0 V at 177 A - clamping voltage during 3000 W transient, limiting stress on protected circuitry |
| PPPM | 3000 W (10/1000 μs) - peak surge energy handling capacity for automotive load-dump immunity |
| TJ max. | +185 °C - enables placement near hot engine-control electronics without derating |
| Package | SMC (DO-214AB) - industry-standard surface-mount outline with 7.75 mm × 6.22 mm footprint and 2.06 mm lead spacing |
| AEC-Q101 | Qualified - validated for automotive electronic modules per stress test requirements |
| MSL Level | Level 1 (260 °C peak reflow) - supports standard lead-free PCB assembly without moisture sensitivity concerns |
Pinout & Package
Package: SMC (DO-214AB), molded case with matte tin-plated leads, cathode indicated by color band. Dimensions: 8.13 mm × 6.60 mm × 2.46 mm (L × W × H); thermal resistance RθJL = 18.3 °C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction | Connected to ground or low-impedance return path in unidirectional TVS configuration |
| Cathode | Current exit terminal during forward conduction; clamping node during reverse transient | Connected to protected line (e.g., CAN_H, LIN, sensor output); absorbs surge energy into ground |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivated anisotropic rectifier | Enables stable VBR over temperature and lifetime, critical for automotive under-hood deployment |
| 185 °C junction rating | Supports direct mounting on ECU PCBs near power stages without thermal derating penalties |
| 3000 W peak pulse power (10/1000 μs) | Meets ISO 7637-2 Pulse 5a (load dump) requirements for 12 V vehicle systems |
| Halogen-free, RoHS-compliant HM3 suffix | Fulfills automotive OEM material compliance mandates including VW 80101 and GMW3172 |
| Low clamping voltage (17.0 V) | Protects 16 V-rated microcontrollers and transceivers without overvoltage damage during transients |
Applications
| Automotive Sensor Protection | Power Supply Rail Clamping |
|---|---|
Use Scenario: Protecting analog output lines of pressure, temperature, and position sensors in engine control units exposed to inductive kickback from solenoids and relays. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed between sensor output and microcontroller ADC input. Use Value: Limits transient voltage to ≤17.0 V, preserving ADC integrity and preventing latch-up in 3.3 V or 5 V MCU inputs. | Use Scenario: Safeguarding 12 V supply rails feeding motor drivers and communication ICs in body control modules. IC Role / Device Role / Timing Role: Primary surge suppression element across VCC-GND, absorbing load-dump energy before LDOs or DC-DC converters. Use Value: Withstands 3000 W pulses while maintaining clamping below 17.0 V, avoiding brownout or reset events during battery disconnection events. |
| Automotive CAN Bus Protection | Industrial Motor Drive I/O Protection |
Use Scenario: Shielding CAN_H/CAN_L differential pair from ESD and coupled transients in infotainment and gateway ECUs. IC Role / Device Role / Timing Role: Discrete unidirectional TVS on each bus line referenced to chassis ground. Use Value: Fast response and low clamping enable CAN FD bit rates up to 5 Mbps without signal distortion or timing skew. | Use Scenario: Guarding digital I/O lines of PLC modules connected to 24 V industrial solenoids and contactors. IC Role / Device Role / Timing Role: Point-of-entry transient suppressor on discrete input/output terminals. Use Value: 185 °C rating allows mounting inside sealed enclosures with ambient temperatures up to 125 °C without performance loss. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ10AHE3_A/H | Lower PPPM (400 W), smaller SMA package, same VWM/VBR range, non-AEC-Q101 | Not qualified for automotive under-hood use; limited to consumer/industrial board-level protection | Select when cost and board space are prioritized over automotive qualification and surge robustness |
| 1.5KE10A | Through-hole DO-201 package, 1500 W PPPM, higher VF, no MSL or AEC-Q101 rating | Requires wave soldering; unsuitable for automated SMT lines or high-reliability automotive programs | Choose only for legacy through-hole designs where rework flexibility outweighs production efficiency |
Compared with SMAJ10AHE3_A/H and 1.5KE10A, the 3KASMC10AHM3_B/I provides triple the surge power handling, AEC-Q101 validation, and SMT compatibility - making it the only option qualified for new automotive electronics requiring ISO 16750-2 and ISO 7637-2 compliance.
Availability
3KASMC10AHM3_B/I is available at Aetrix Electronics and suitable for automotive sensor protection, CAN bus hardening, and industrial motor drive I/O protection requiring stable component supply, long-term lifecycle support, and traceable halogen-free sourcing.
Supply support for 3KASMC10AHM3_B/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 diodes, rectifiers, TVS devices, and optoelectronics with emphasis on high-reliability, high-temperature, and automotive-qualified components.
The 3KASMCxxA family is designed specifically for automotive-grade transient suppression in engine control, body electronics, and ADAS subsystems - delivering robust 3000 W surge capability in compact SMC packages with AEC-Q101 validation.
FAQ
What is the clamping voltage of the 3KASMC10AHM3_B/I at its rated peak pulse current?
The 3KASMC10AHM3_B/I has a maximum clamping voltage (VC) of 17.0 V at its peak pulse current (IPPM) of 177 A, measured under the standardized 10/1000 μs waveform. This value ensures protected circuits remain within safe operating limits during high-energy transients. The 3KASMC10AHM3_B/I maintains this clamping performance across its full operating temperature range from –65 °C to +185 °C.
Is the 3KASMC10AHM3_B/I qualified for automotive applications?
Yes, the 3KASMC10AHM3_B/I is AEC-Q101 qualified and carries the HM3 suffix indicating halogen-free, RoHS-compliant construction validated for automotive use. It meets JESD201 Class 2 whisker testing and operates reliably up to +185 °C junction temperature - satisfying requirements for engine control, transmission, and body electronics modules. The 3KASMC10AHM3_B/I is explicitly listed in Vishay's AEC-Q101 qualified product matrix.
What does the "HM3" suffix mean in 3KASMC10AHM3_B/I?
The "HM3" suffix in 3KASMC10AHM3_B/I denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. It distinguishes this variant from HE3 (RoHS-compliant but not halogen-free) and confirms compliance with automotive material standards such as VW 80101 and GMW3172. The 3KASMC10AHM3_B/I also meets MSL Level 1 and JESD201 Class 2 whisker resistance requirements.
What is the thermal resistance from junction to leads for the 3KASMC10AHM3_B/I?
The 3KASMC10AHM3_B/I has a typical thermal resistance from junction to leads (RθJL) of 18.3 °C/W, enabling efficient heat transfer to PCB copper pours or heatsinking pads. This value supports sustained power dissipation up to 6.0 W at TL = 75 °C and contributes to its +185 °C maximum junction temperature rating. The 3KASMC10AHM3_B/I achieves this performance in its SMC (DO-214AB) package with optimized internal metallization.
How does the 3KASMC10AHM3_B/I compare to the SMAJ10AHE3_A/H in surge capability?
The 3KASMC10AHM3_B/I delivers 3000 W peak pulse power (10/1000 μs), which is 7.5× higher than the 400 W rating of the SMAJ10AHE3_A/H. Both share the same 10 V stand-off voltage, but the 3KASMC10AHM3_B/I achieves superior clamping (17.0 V vs. ~20.0 V) and automotive qualification. The 3KASMC10AHM3_B/I is the only one rated for TJ = 185 °C and MSL Level 1 reflow - critical distinctions for modern automotive electronics.
3KASMC10AHM3_B/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:
- Active
- 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)
3KASMC10AHM3_B/I FAQ
1.How can I place an order for 3KASMC10AHM3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for 3KASMC10AHM3_B/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 3KASMC10AHM3_B/I reliable?
The price and inventory of 3KASMC10AHM3_B/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 3KASMC10AHM3_B/I is usually 5 days.
3.What payment methods are accepted for 3KASMC10AHM3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 3KASMC10AHM3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 3KASMC10AHM3_B/I?
3KASMC10AHM3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 3KASMC10AHM3_B/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 3KASMC10AHM3_B/I?
For technical support, including 3KASMC10AHM3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 3KASMC10AHM3_B/I requirements.
6.How does Aetrix verify that 3KASMC10AHM3_B/I is sourced from the original manufacturer or authorized distributors?
All 3KASMC10AHM3_B/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 3KASMC10AHM3_B/I meets industry standards.
7.What is the process for return or replacement of 3KASMC10AHM3_B/I?
All 3KASMC10AHM3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with 3KASMC10AHM3_B/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 3KASMC10AHM3_B/I part is unused and in its original packaging.
Return procedure for 3KASMC10AHM3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
3KASMC10AHM3_B/I Tags
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