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Vishay General Semiconductor - Diodes Division 3KASMC10AHM3_B/H
- Part No.:
- 3KASMC10AHM3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
3KASMC10AHM3_B/H.pdf
- Description:
- TVS DIODE 10VWM 17VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,885
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Product details
Overview
3KASMC10AHM3_B/H 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. It operates up to TJ = 185 °C and is halogen-free, RoHS-compliant, and AEC-Q101 qualified - deployed for automotive sensor line protection against inductive switching transients.
For engineers reviewing the 3KASMC10AHM3_B/H datasheet, 3KASMC10AHM3_B/H pinout, 3KASMC10AHM3_B/H application, or 3KASMC10AHM3_B/H equivalent, key selection criteria include unidirectional clamping behavior, 17.0 V VC at 177 A, MSL Level 1 rating, 185 °C junction capability, and compatibility with automotive-grade PCB assembly per J-STD-020 and JESD 201 Class 2.
Technical Context
This device uses passivated anisotropic rectifier technology optimized for high-temperature stability and low incremental surge resistance. Its unidirectional architecture provides fast response time and excellent clamping performance under 10/1000 μs surge conditions, with thermal resistance RθJL = 18.3 °C/W enabling robust power dissipation on standard PCB pads.
The 3KASMC10AHM3_B/H is designed for transient suppression in DC-biased signal and power lines where reverse polarity is not expected. Its TJ = –65 °C to +185 °C operating range and AEC-Q101 qualification confirm suitability for under-hood automotive environments and industrial control systems subject to repetitive load dump or ESD events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - maximum continuous reverse voltage before clamping begins; defines safe operating margin for 12 V automotive systems. |
| VBR (min/typ/max) | 11.1 / 11.7 / 12.3 V at IT = 1 mA - tight 10% tolerance ensures predictable turn-on across temperature and production lots. |
| VC at IPPM | 17.0 V at 177 A - low clamping voltage limits stress on downstream ICs like microcontrollers or CAN transceivers. |
| PPPM | 3000 W (10/1000 μs) - supports high-energy transients such as ISO 7637-2 Pulse 5a without degradation. |
| TJ max | +185 °C - enables placement near heat sources (e.g., power MOSFETs, motor drivers) without derating concerns. |
| Package | SMC (DO-214AB) - industry-standard footprint with 0.320" x 0.246" body, compatible with automated SMT placement and reflow profiles up to 260 °C. |
| AEC-Q101 | Qualified - validated for automotive use including temperature cycling, humidity bias, and mechanical shock per AEC specification. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, matte tin-plated leads, cathode indicated by color band. Molding compound meets UL 94 V-0.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink node | Connected to protected line; conducts surge current to ground during overvoltage event. |
| Anode | Reference/return path | Typically tied to system ground or low-impedance return plane; completes clamping path during transient. |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation optimized design | Enables stable leakage (<5 μA at VWM) and long-term reliability under thermal cycling and humidity stress. |
| TJ = 185 °C capability | Supports operation in engine control units (ECUs), battery management systems (BMS), and ADAS modules without external heatsinking. |
| 3000 W peak pulse power (10/1000 μs) | Withstands high-energy transients from relay coil de-energization or alternator load dump per ISO 16750-2. |
| MSL Level 1, 260 °C peak reflow | Eliminates moisture sensitivity concerns; allows single-pass lead-free reflow without baking or special handling. |
| Halogen-free & RoHS-compliant (HM3 suffix) | Fulfills automotive OEM environmental requirements and simplifies compliance documentation for Tier 1 suppliers. |
Applications
| Automotive Sensor Protection | Industrial Motor Drive I/O |
|---|---|
Use Scenario: Protecting analog output lines of pressure, temperature, and position sensors in engine bay modules exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between sensor signal line and chassis ground to clamp transients below IC absolute maximum ratings. Use Value: Prevents latch-up or permanent damage to 3.3 V/5 V sensor interface ICs while maintaining signal integrity via low 17.0 V clamping voltage. | Use Scenario: Safeguarding digital input/output pins of PLC I/O modules connected to solenoid valves and contactors in factory automation. IC Role / Device Role / Timing Role: Standoff protection device on 24 V DC control lines, absorbing inductive kickback energy during switch-off. Use Value: Extends field lifetime of optocouplers and level translators by limiting reverse voltage spikes to ≤17.0 V during 200 A surge events. |
| Automotive Body Control Module (BCM) | Telecom Power Supply Input |
Use Scenario: Input protection for LIN bus transceivers and LED driver ICs in door modules, seat controllers, and lighting nodes. IC Role / Device Role / Timing Role: Primary transient suppressor on 12 V supply rail feeding BCM sub-circuits, placed upstream of LDO regulators. Use Value: Maintains functional safety integrity by preventing brownout or reset caused by 3000 W surges, leveraging 185 °C junction rating for under-dash mounting. | Use Scenario: Secondary-side transient suppression on 48 V telecom power distribution boards handling PoE+ and remote radio unit feeds. IC Role / Device Role / Timing Role: Fast-response clamping device parallel to DC-DC converter input, diverting lightning-induced surges away from primary FETs. Use Value: Reduces need for oversized input capacitors by providing 177 A surge current handling and <1 ns response, improving board-level surge immunity to IEC 61000-4-5. |
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), same VWM (10 V), SMC package, AEC-Q101 qualified but no HM3 halogen-free option. | Not suitable for ISO 7637-2 Pulse 5a; limited to lower-energy transients in non-critical subsystems. | Select when cost sensitivity outweighs peak power requirement and halogen-free compliance is not mandated. |
| SMCJ10A-M3/86A | Higher PPPM (3000 W), same VWM/VBR/VC, but only HE3 (RoHS/AEC-Q101) - no halogen-free HM3 variant available. | Acceptable for automotive use but requires separate material declaration for halogen content if required by OEM. | Choose when AEC-Q101 and 3000 W rating are essential, and halogen-free status is secondary to qualification and availability. |
Compared with SMAJ10AHE3_A/H and SMCJ10A-M3/86A, the 3KASMC10AHM3_B/H uniquely combines 3000 W surge capability, halogen-free construction, and AEC-Q101 qualification in one SMC package - making it the preferred choice for Tier 1 automotive designs requiring full environmental and reliability compliance without trade-offs.
Availability
3KASMC10AHM3_B/H is available at Aetrix Electronics and suitable for automotive sensor protection, industrial motor drive I/O, and telecom power supply input applications requiring stable component supply, halogen-free compliance, and AEC-Q101 qualification.
Supply support for 3KASMC10AHM3_B/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 is a global leader in discrete semiconductors, specializing in diodes, rectifiers, TVS devices, and optoelectronics with emphasis on reliability, high-temperature operation, and automotive qualification.
The 3KASMCxxA family was engineered specifically for high-reliability transient suppression in harsh automotive and industrial environments, targeting applications demanding extended temperature range, AEC-Q101 validation, and consistent clamping performance under repetitive surge stress.
FAQ
What is the clamping voltage of the 3KASMC10AHM3_B/H at its rated peak pulse current?
The 3KASMC10AHM3_B/H has a maximum clamping voltage (VC) of 17.0 V at its rated peak pulse current (IPPM) of 177 A under a 10/1000 μs waveform. This value is measured per test condition defined in the Vishay datasheet Document Number 88480 and ensures downstream components remain within safe operating limits during surge events.
Is the 3KASMC10AHM3_B/H suitable for automotive applications requiring AEC-Q101 qualification?
Yes, the 3KASMC10AHM3_B/H is explicitly AEC-Q101 qualified, as confirmed in the Vishay datasheet revision 19-Jan-2024. The HM3 suffix denotes halogen-free, RoHS-compliant, and AEC-Q101-qualified construction - meeting Tier 1 automotive supplier requirements for under-hood and body electronics.
What does the "HM3" suffix indicate in 3KASMC10AHM3_B/H?
The "HM3" suffix in 3KASMC10AHM3_B/H identifies the part as halogen-free, RoHS-compliant, and AEC-Q101 qualified - distinct from the HE3 variant which is RoHS- and AEC-Q101-compliant but not halogen-free. Both meet JESD 201 Class 2 whisker testing and MSL Level 1 reflow standards.
What is the thermal resistance from junction to leads (RθJL) for the 3KASMC10AHM3_B/H?
The 3KASMC10AHM3_B/H has a typical thermal resistance from junction to leads (RθJL) of 18.3 °C/W, as specified in the Vishay datasheet. This parameter supports effective heat transfer to PCB copper pours or thermal pads, enabling reliable operation at TJ = 185 °C without forced cooling.
How does the 3KASMC10AHM3_B/H differ from the 3KASMC10AHE3_B/H variant?
The 3KASMC10AHM3_B/H is halogen-free, whereas the 3KASMC10AHE3_B/H is RoHS-compliant and AEC-Q101 qualified but contains halogens. Both share identical electrical specifications (VWM = 10 V, VC = 17.0 V, PPPM = 3000 W), package (SMC), and thermal ratings - differing only in material composition and environmental compliance scope.
3KASMC10AHM3_B/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:
- 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 (SMC)
3KASMC10AHM3_B/H FAQ
1.How can I place an order for 3KASMC10AHM3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for 3KASMC10AHM3_B/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 3KASMC10AHM3_B/H reliable?
The price and inventory of 3KASMC10AHM3_B/H 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/H is usually 5 days.
3.What payment methods are accepted for 3KASMC10AHM3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 3KASMC10AHM3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 3KASMC10AHM3_B/H?
3KASMC10AHM3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 3KASMC10AHM3_B/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 3KASMC10AHM3_B/H?
For technical support, including 3KASMC10AHM3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 3KASMC10AHM3_B/H requirements.
6.How does Aetrix verify that 3KASMC10AHM3_B/H is sourced from the original manufacturer or authorized distributors?
All 3KASMC10AHM3_B/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 3KASMC10AHM3_B/H meets industry standards.
7.What is the process for return or replacement of 3KASMC10AHM3_B/H?
All 3KASMC10AHM3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with 3KASMC10AHM3_B/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 3KASMC10AHM3_B/H part is unused and in its original packaging.
Return procedure for 3KASMC10AHM3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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