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Vishay General Semiconductor - Diodes Division 5KASMC10AHM3/9A
- Part No.:
- 5KASMC10AHM3/9A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
5KASMC10AHM3/9A.pdf
- Description:
- TVS DIODE 10VWM 17VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,230
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Product details
Overview
5KASMC10AHM3/9A from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in DO-214AB (SMCJ) package, rated for 10 V stand-off voltage (VWM), 11.1–12.3 V breakdown (VBR), 5000 W peak pulse power (10/1000 µs), 185 °C maximum junction temperature, and AEC-Q101 qualified for automotive electronics protection.
For engineers reviewing the 5KASMC10AHM3/9A datasheet, 5KASMC10AHM3/9A pinout, 5KASMC10AHM3/9A application, or 5KASMC10AHM3/9A equivalent, this part delivers high-reliability transient suppression on power rails and signal lines in harsh thermal environments-especially where MSL Level 1, halogen-free compliance, and low clamping voltage (17.0 V at 294.1 A) are critical selection criteria.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to achieve stable clamping under repetitive surge stress, with verified 185 °C junction capability enabling operation in under-hood automotive modules and industrial motor drives without derating penalties up to ambient 125 °C. Its unidirectional polarity and 100 °C/W junction-to-ambient thermal resistance require careful PCB pad layout per Vishay's recommended footprint.
The device meets JESD22-B102 solderability and JESD201 Class 2 whisker resistance standards, and its 20.8 °C/W junction-to-mount thermal resistance supports reliable heat transfer when mounted on copper pour or heatsinked substrates-critical for sustaining 6.5 W steady-state power dissipation at TM = 50 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - Maximum continuous reverse operating voltage before conduction begins; defines safe working range for 12 V nominal systems. |
| VBR @ IT = 1 mA | 11.1–12.3 V - Verified breakdown threshold ensures predictable turn-on during transients while avoiding false triggering. |
| PPPM (10/1000 µs) | 5000 W - Sustains high-energy surges such as ISO 7637-2 Pulse 5a without degradation; enables single-device protection of 12 V power inputs. |
| VC @ IPPM = 294.1 A | 17.0 V - Clamping voltage limits downstream IC stress to safe levels during worst-case surge events. |
| TJmax | 185 °C - Enables use in high-temperature automotive zones (e.g., engine control units) without thermal shutdown or parameter drift. |
| Package | DO-214AB (SMCJ) - Industry-standard surface-mount outline with cathode band marking; compatible with automated pick-and-place and reflow. |
| AEC-Q101 Qualified | Validated for automotive-grade reliability including HTOL, TC, and HAST testing-required for safety-critical ECUs and ADAS subsystems. |
Pinout & Package
DO-214AB (SMCJ) package with two terminals: anode and cathode. Cathode identified by molded band. Matte tin-plated leads meet J-STD-002 and JESD 22-B102 solderability requirements. Mounting requires minimum recommended pad layout per Vishay Doc. 89432, page 4.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction; connected to system ground or low-side reference in unidirectional TVS configuration. | Must be routed to lowest-impedance ground plane to minimize clamping overshoot during fast transients. |
| Cathode | Current exit point during reverse-biased clamping; connected to protected line (e.g., 12 V rail or CAN-H). | Marked by visible band; polarity error causes open-circuit failure-no protection during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| 5000 W peak pulse power (10/1000 µs) | Single-device protection against severe load dump and inductive switching transients in 12 V automotive systems. |
| 185 °C junction rating | Eliminates need for thermal derating in under-hood applications up to +125 °C ambient, reducing BOM count vs. lower-TJ alternatives. |
| AEC-Q101 qualification | Confirms long-term reliability under automotive temperature cycling, humidity, and vibration stress-mandatory for Tier 1 ECU designs. |
| MSL Level 1 (260 °C peak) | Enables standard lead-free reflow without moisture sensitivity concerns-no baking required prior to assembly. |
| Halogen-free & RoHS-compliant (HM3 suffix) | Meets global environmental regulations and eliminates corrosive halogen emissions during end-of-life incineration. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from ISO 7637-2 Pulse 5a load dump transients up to 60 V/100 ms. IC Role / Device Role / Timing Role: Unidirectional TVS clamps excess energy into ground, limiting rail voltage to ≤17.0 V during surge. Use Value: Prevents latch-up or permanent damage to microcontrollers and power management ICs without requiring series impedance. |
Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) from ESD and switching noise in factory automation PLCs. IC Role / Device Role / Timing Role: Fast-response TVS shunts sub-100 ns ESD pulses before they reach precision ADC front-ends. Use Value: Maintains signal integrity and measurement accuracy by limiting transient-induced offset errors to <1 LSB. |
| Telecom DC Power Input Protection | Computer PSU Hold-Up Circuit Protection |
Use Scenario: Safeguarding 48 V telecom rectifier outputs against lightning-induced surges on outdoor cabinet power feeds. IC Role / Device Role / Timing Role: High-power TVS absorbs multi-kW transients while maintaining low leakage (<20 µA at 10 V) during normal operation. Use Value: Extends mean time between failures (MTBF) of power conversion stages by eliminating surge-induced MOSFET avalanche failures. |
Use Scenario: Securing hold-up capacitor charging paths in ATX PSUs against inrush-induced voltage spikes during cold start. IC Role / Device Role / Timing Role: Clamps overshoot on bulk capacitor nodes during initial charge, preventing overvoltage trip of OVP circuits. Use Value: Reduces startup failure rate in high-volume PC power supplies without adding active regulation complexity. |
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 peak pulse power (600 W), smaller SMB (DO-214AA) package, 100 °C max junction temperature. | Suitable only for low-energy consumer or non-automotive industrial applications; not AEC-Q101 qualified. | Select when cost and board space are prioritized over automotive reliability and high-surge immunity. |
| SMCJ10A | Same DO-214AB package and 5000 W rating, but base P/N lacks HM3 suffix-halogen content not specified, no AEC-Q101 documentation. | Acceptable for non-automotive industrial use where halogen-free and automotive qualification are not mandated. | Choose only if environmental compliance and automotive validation are outside design requirements. |
Compared with SMBJ10A and SMCJ10A, the 5KASMC10AHM3/9A uniquely combines AEC-Q101 qualification, 185 °C junction rating, and halogen-free construction-making it the sole option for production automotive ECUs requiring full regulatory and thermal compliance without trade-offs in surge robustness.
Availability
5KASMC10AHM3/9A is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and telecom power input stages requiring stable component supply, long lifecycle support, and guaranteed AEC-Q101 compliance.
Supply support for 5KASMC10AHM3/9A 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 5KASMC10AHM3/9A belongs to Vishay's PAR® (Protection Against Risk) TVS family, engineered specifically for high-temperature, high-surge environments in automotive power distribution and industrial control systems.
FAQ
What is the maximum clamping voltage of the 5KASMC10AHM3/9A during a 10/1000 µs surge event?
The 5KASMC10AHM3/9A has a maximum clamping voltage (VC) of 17.0 V when subjected to its rated peak pulse current of 294.1 A (10/1000 µs waveform). This value is measured per ANSI/IEEE C62.35 and guarantees that protected circuitry remains below critical overvoltage thresholds during standardized surge tests. The 5KASMC10AHM3/9A maintains this clamping performance across its full operating temperature range.
Is the 5KASMC10AHM3/9A suitable for automotive applications requiring AEC-Q101 qualification?
Yes, the 5KASMC10AHM3/9A is explicitly AEC-Q101 qualified, as confirmed in Vishay Document Number 89432, Revision 18-Apr-16. It undergoes stress testing for high-temperature operating life, temperature cycling, and humidity exposure per automotive reliability standards. The 5KASMC10AHM3/9A is approved for use in engine control units, body control modules, and ADAS power domains where qualification is mandatory.
What does the "HM3" suffix indicate in 5KASMC10AHM3/9A?
The "HM3" suffix denotes Vishay's halogen-free, RoHS-compliant, and AEC-Q101-qualified construction. It specifies matte tin-plated leads meeting J-STD-002 solderability and JESD 201 Class 2 whisker resistance requirements. The "9A" denotes 13-inch tape-and-reel packaging with 3500 units per reel. The 5KASMC10AHM3/9A thus satisfies both environmental and automotive reliability mandates in a single part number.
Can the 5KASMC10AHM3/9A replace older SMCJ10A parts in existing designs?
The 5KASMC10AHM3/9A shares the same DO-214AB package, electrical ratings, and pinout as legacy SMCJ10A devices, but adds halogen-free materials and formal AEC-Q101 qualification. While mechanical drop-in replacement is possible, designers must verify that the HM3 suffix's enhanced reliability profile aligns with updated automotive or industrial compliance requirements. The 5KASMC10AHM3/9A is not a generic substitute-it is a specification upgrade with documented qualification evidence.
What is the thermal resistance from junction to ambient for the 5KASMC10AHM3/9A?
The 5KASMC10AHM3/9A has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on Vishay's minimum recommended pad layout. This value assumes standard FR-4 PCB with 1 oz copper and no additional heatsinking. For higher power dissipation, designers should implement thermal vias and copper pour to approach the 20.8 °C/W junction-to-mount (RθJM) spec-critical for sustained operation near its 6.5 W power limit.
5KASMC10AHM3/9A 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):
- -
- Power - Peak Pulse:
- 5000W (5kW)
- 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)
5KASMC10AHM3/9A FAQ
1.How can I place an order for 5KASMC10AHM3/9A through Aetrix?
Please submit a Request for Quotation (RFQ) for 5KASMC10AHM3/9A 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 5KASMC10AHM3/9A reliable?
The price and inventory of 5KASMC10AHM3/9A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5KASMC10AHM3/9A is usually 5 days.
3.What payment methods are accepted for 5KASMC10AHM3/9A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5KASMC10AHM3/9A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 5KASMC10AHM3/9A?
5KASMC10AHM3/9A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5KASMC10AHM3/9A 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 5KASMC10AHM3/9A?
For technical support, including 5KASMC10AHM3/9A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5KASMC10AHM3/9A requirements.
6.How does Aetrix verify that 5KASMC10AHM3/9A is sourced from the original manufacturer or authorized distributors?
All 5KASMC10AHM3/9A 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 5KASMC10AHM3/9A meets industry standards.
7.What is the process for return or replacement of 5KASMC10AHM3/9A?
All 5KASMC10AHM3/9A units undergo pre-shipment inspection (PSI). If there is an issue with 5KASMC10AHM3/9A, 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 5KASMC10AHM3/9A part is unused and in its original packaging.
Return procedure for 5KASMC10AHM3/9A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
5KASMC10AHM3/9A Tags
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