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Vishay General Semiconductor - Diodes Division 3KASMC10AHM3_A/H
- Part No.:
- 3KASMC10AHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
3KASMC10AHM3_A/H.pdf
- Description:
- TVS DIODE 10VWM 17VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:6,896
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Product details
Overview
3KASMC10AHM3_A/H from Vishay General Semiconductor is a unidirectional surface-mount PAR® Transient Voltage Suppressor (TVS) diode in DO-214AB (SMC) 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), and 185 °C maximum junction temperature. It protects MOSFETs, ICs, and sensor signal lines in automotive and industrial power electronics against inductive switching transients.
For engineers reviewing the 3KASMC10AHM3_A/H datasheet, 3KASMC10AHM3_A/H pinout, 3KASMC10AHM3_A/H application, or 3KASMC10AHM3_A/H equivalent, key selection criteria include clamping voltage (17.0 V at 177 A), unidirectional polarity, AEC-Q101 qualification, MSL Level 1 rating, and thermal resistance (RθJA = 77.5 °C/W).
Technical Context
This TVS diode uses passivated anisotropic rectifier technology optimized for high-temperature stability and reliability under harsh conditions. Its 185 °C junction rating supports operation in under-hood automotive environments and high-power industrial systems where thermal derating must be minimized.
The device delivers 3000 W peak pulse power with low incremental surge resistance and fast response time, enabling effective suppression of transient energy before sensitive downstream components are stressed. Clamping occurs at 17.0 V when subjected to 177 A (10/1000 µs), with VF = 3.5 V at 100 A forward surge current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - Maximum reverse stand-off voltage before significant leakage; defines operating voltage ceiling for protected circuit. |
| VBR (min/max) | 11.1 V / 12.3 V at 1 mA - Confirmed breakdown range ensures reliable triggering margin above VWM. |
| PPPM | 3000 W (10/1000 µs) - Sustains high-energy transients without failure, critical for load-dump and ISO 7637-2 compliance. |
| VC @ IPPM | 17.0 V at 177 A - Clamping voltage limits stress on downstream ICs; low value reduces risk of overvoltage damage. |
| TJ max. | +185 °C - Enables use in high-ambient-temperature locations (e.g., engine control units) without derating penalties. |
| RθJA | 77.5 °C/W - Thermal resistance determines self-heating under continuous power; guides heatsinking and layout decisions. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability per stress test requirements including HTGB, HTRB, and TCT. |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, matte tin-plated leads, RoHS-compliant, MSL Level 1 (260 °C peak reflow). Cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current return path during clamping | Connected to ground or low-impedance return plane; carries full surge current during event. |
| Cathode | Protected line connection point | Connected to line being protected (e.g., 12 V rail or sensor signal); voltage referenced to anode during clamping. |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation optimized design | Enables stable leakage performance up to 185 °C, reducing drift in long-life automotive applications. |
| 3000 W peak pulse power (10/1000 µs) | Withstands high-energy transients such as ISO 16750-2 load dump pulses without degradation. |
| Low clamping voltage (17.0 V) | Minimizes overvoltage exposure to downstream 12 V-rated ICs and MOSFETs during surge events. |
| AEC-Q101 qualified | Validated for automotive electronic modules requiring zero-failure field reliability over 15+ year service life. |
| MSL Level 1, 260 °C peak reflow | Supports standard lead-free SMT assembly without moisture-related popcorn or delamination risks. |
Applications
| Automotive Power Distribution | Industrial Motor Control |
|---|---|
Use Scenario: Protection of 12 V supply rails in body control modules and junction boxes exposed to load dump and jump-start transients. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between battery input and DC-DC converter input stage. Use Value: Limits transient voltage to ≤17.0 V, preventing latch-up or gate oxide rupture in downstream regulators and microcontrollers. | Use Scenario: Surge suppression on gate drive signal lines of IGBTs in variable-frequency drives subject to inductive kickback. IC Role / Device Role / Timing Role: Fast-response TVS connected across gate-source terminals to absorb Miller-induced spikes. Use Value: Clamps sub-100 ns spikes below 17.0 V, avoiding false turn-on and ensuring robust gate drive integrity. |
| Automotive Sensor Interface | Telecom Power Input Stage |
Use Scenario: Protection of analog signal lines (e.g., LIN bus, temperature sensors) in engine bay modules operating at elevated ambient temperatures. IC Role / Device Role / Timing Role: Low-capacitance TVS placed inline with sensor output to suppress ESD and coupled transients. Use Value: Maintains signal fidelity while surviving repeated 185 °C thermal cycling and 30 kV ESD events per IEC 61000-4-2. | Use Scenario: Front-end protection of 48 V telecom power supplies against lightning-induced surges and AC line faults. IC Role / Device Role / Timing Role: Primary clamping device on DC input bus prior to PFC and isolation stages. Use Value: Absorbs 3000 W pulses without failure, preserving upstream fuse coordination and system uptime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ10A | Lower peak pulse power (600 W), same VWM/VBR, DO-214AA (SMB) package | Not suitable for ISO 7637-2 Pulse 5a load dump; limited to lower-energy transients | Select only for cost-sensitive consumer or non-automotive applications with <1 kW surge requirements. |
| SMCJ10A | Same DO-214AB (SMC) package and 3000 W rating, but VBR min = 11.1 V (identical), TJ max = 175 °C (10 °C lower) | Lacks AEC-Q101 qualification; not validated for automotive production use | Acceptable for industrial equipment where AEC-Q101 is not mandated, but requires additional reliability validation. |
Compared with SMBJ10A and SMCJ10A, the 3KASMC10AHM3_A/H provides higher thermal endurance (185 °C vs. 150–175 °C), automotive qualification, and identical clamping performance-making it the only option qualified for under-hood deployment without derating or supplemental testing.
Availability
3KASMC10AHM3_A/H is available at Aetrix Electronics and suitable for automotive power distribution, industrial motor control, automotive sensor interface, and telecom power input stage applications requiring stable component supply, AEC-Q101 compliance, and high-temperature reliability.
Supply support for 3KASMC10AHM3_A/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 high-reliability, high-temperature, and automotive-grade solutions.
The 3KASMC series was designed specifically for automotive and industrial transient suppression where extended junction temperature capability (up to +185 °C), AEC-Q101 qualification, and 3000 W pulse handling are mandatory.
FAQ
What is the clamping voltage of the 3KASMC10AHM3_A/H under maximum surge conditions?
The 3KASMC10AHM3_A/H has a maximum clamping voltage (VC) of 17.0 V when subjected to its rated peak pulse current of 177 A using a 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and ensures downstream 12 V logic and power components remain within safe operating limits during transient events. The 3KASMC10AHM3_A/H maintains this clamping performance across its full operating temperature range.
Is the 3KASMC10AHM3_A/H qualified for automotive applications?
Yes, the 3KASMC10AHM3_A/H is AEC-Q101 qualified and explicitly designed for automotive use. It meets stress test requirements including high-temperature reverse bias (HTRB), high-temperature gate bias (HTGB), and temperature cycling (TCT). Its 185 °C maximum junction temperature and DO-214AB (SMC) package with MSL Level 1 rating make the 3KASMC10AHM3_A/H suitable for under-hood ECUs, body control modules, and ADAS power supplies.
What is the package type and mounting specification for the 3KASMC10AHM3_A/H?
The 3KASMC10AHM3_A/H uses the DO-214AB (SMC) surface-mount package with matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards. It features a cathode band marking and is rated MSL Level 1 (260 °C peak reflow). The recommended mounting pad layout is specified in Vishay document 89962, and the device is compatible with standard lead-free reflow profiles.
How does the 3KASMC10AHM3_A/H compare to standard SMBJ-series TVS diodes?
The 3KASMC10AHM3_A/H delivers 3000 W peak pulse power-five times higher than the 600 W rating of SMBJ10A-and operates up to 185 °C versus 150 °C for most SMBJ devices. Its DO-214AB (SMC) package offers superior thermal dissipation over DO-214AA (SMB). Unlike SMBJ10A, the 3KASMC10AHM3_A/H is AEC-Q101 qualified and optimized for automotive transients like load dump, making it unsuitable for direct substitution without system-level validation.
What is the maximum reverse leakage current of the 3KASMC10AHM3_A/H at rated stand-off voltage?
At VWM = 10 V and TA = 25 °C, the 3KASMC10AHM3_A/H exhibits a maximum reverse leakage current (IR) of 5.0 µA. At elevated temperature (TJ = 150 °C), leakage increases to 50 µA-still within acceptable limits for most 12 V system monitoring circuits. This low leakage ensures minimal power loss and avoids false triggering in high-impedance sensing nodes protected by the 3KASMC10AHM3_A/H.
3KASMC10AHM3_A/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:
- 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):
- 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_A/H FAQ
1.How can I place an order for 3KASMC10AHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for 3KASMC10AHM3_A/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_A/H reliable?
The price and inventory of 3KASMC10AHM3_A/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_A/H is usually 5 days.
3.What payment methods are accepted for 3KASMC10AHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 3KASMC10AHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 3KASMC10AHM3_A/H?
3KASMC10AHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 3KASMC10AHM3_A/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_A/H?
For technical support, including 3KASMC10AHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 3KASMC10AHM3_A/H requirements.
6.How does Aetrix verify that 3KASMC10AHM3_A/H is sourced from the original manufacturer or authorized distributors?
All 3KASMC10AHM3_A/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_A/H meets industry standards.
7.What is the process for return or replacement of 3KASMC10AHM3_A/H?
All 3KASMC10AHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with 3KASMC10AHM3_A/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_A/H part is unused and in its original packaging.
Return procedure for 3KASMC10AHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
3KASMC10AHM3_A/H Tags
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