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Vishay General Semiconductor - Diodes Division 3KASMC16AHM3_A/H
- Part No.:
- 3KASMC16AHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
3KASMC16AHM3_A/H.pdf
- Description:
- TVS DIODE 16VWM 28.8VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,665
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Product details
Overview
3KASMC16AHM3_A/H from Vishay General Semiconductor is a unidirectional surface-mount PAR® Transient Voltage Suppressor (TVS) designed for high-reliability overvoltage protection in automotive and industrial power rails. It delivers 3000 W peak pulse power (10/1000 μs), clamps at 26.0 V under 115 A surge current, and operates up to 185 °C junction temperature - enabling robust protection of MOSFETs and ICs against inductive switching transients.
For engineers reviewing the 3KASMC16AHM3_A/H datasheet, 3KASMC16AHM3_A/H pinout, 3KASMC16AHM3_A/H application, or 3KASMC16AHM3_A/H equivalent, key selection criteria include its DO-214AB (SMC) package, 16 V stand-off voltage, AEC-Q101 qualification, 17.8–19.7 V breakdown range, and low 18.3 °C/W junction-to-lead thermal resistance.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology optimized for high-temperature stability and fast response to transient events. Its unidirectional polarity and 1.0 mA test current ensure precise breakdown voltage control across the 17.8–19.7 V range, with clamping performance validated at 115 A IPPM.
The device meets MSL Level 1 per J-STD-020 (260 °C reflow peak), supports 200 A non-repetitive forward surge current (8.3 ms half-sine), and exhibits low incremental surge resistance - critical for minimizing voltage overshoot during ESD and load-dump events in automotive ECUs and industrial motor drives.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 16 V - Maximum continuous reverse voltage before clamping begins; sets operating margin below breakdown. |
| VBR (Breakdown Voltage) | 17.8–19.7 V at 1.0 mA - Tight tolerance ensures predictable turn-on during transients without false triggering. |
| PPPM (Peak Pulse Power) | 3000 W (10/1000 μs) - Sustains high-energy surges common in automotive load-dump and inductive kickback. |
| VC (Clamping Voltage) | 26.0 V at 115 A - Limits protected circuit voltage during worst-case surge, preserving downstream MOSFETs and controllers. |
| TJ max | 185 °C - Enables operation in under-hood automotive environments and high-power industrial enclosures. |
| RθJL | 18.3 °C/W - Low junction-to-lead thermal resistance supports reliable power dissipation without external heatsinking. |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD stress testing. |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, matte tin-plated leads, cathode indicated by color band. Meets UL 94 V-0 flammability rating and JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias; connected to protected circuit ground or low-side return path | Provides low-impedance path for surge current to ground during clamping; requires low-inductance PCB layout. |
| Cathode | Current exit point in forward bias; connected to protected line (e.g., 12 V rail, signal line) | Defines polarity - only conducts when cathode voltage exceeds anode by ≥VBR; color band marks this terminal. |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation optimized design | Enables stable leakage performance (<1.0 μA at VWM) and long-term reliability at 185 °C TJ. |
| 3000 W peak pulse power (10/1000 μs) | Withstands automotive load-dump pulses (ISO 7637-2 Pulse 5a) without degradation. |
| AEC-Q101 qualification | Validates suitability for safety-critical automotive applications including body control modules and ADAS power supplies. |
| MSL Level 1 (260 °C peak) | Supports standard SMT reflow processes without moisture-related popcorn failure or delamination. |
| Low RθJL (18.3 °C/W) | Reduces thermal stress during repetitive surge events, extending lifetime in cyclic industrial environments. |
Applications
| Automotive Body Control Module (BCM) | Industrial Motor Drive Power Supply |
|---|---|
Use Scenario: Protects 12 V supply input of BCM microcontroller and CAN transceivers from load-dump transients during alternator regulation faults. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed directly at power entry point before LDO regulators. Use Value: Clamps to 26.0 V at 115 A, preventing overvoltage damage while maintaining AEC-Q101 compliance and 185 °C operation. |
Use Scenario: Shields gate drivers and PWM controller ICs from inductive kickback generated by IGBT switching in 3-phase inverters. IC Role / Device Role / Timing Role: Fast-response transient suppressor on DC bus and auxiliary supply rails. Use Value: 3000 W peak power handling and 1.0 μA leakage at 16 V enable stable operation without loading sensitive feedback networks. |
| Telecom Power Interface | Consumer Appliance Mainboard Protection |
Use Scenario: Safeguards PoE-powered Ethernet switch ports against lightning-induced surges on 48 V DC input lines. IC Role / Device Role / Timing Role: Primary-level unidirectional TVS on input stage, coordinated with secondary GDT or MOV stages. Use Value: 26.0 V clamping voltage and DO-214AB footprint allow compact placement near connectors with minimal trace inductance. |
Use Scenario: Guards MCU reset lines and sensor interfaces in washing machine mainboards against ESD and relay coil transients. IC Role / Device Role / Timing Role: Low-capacitance (typ. <100 pF), fast-turn-on TVS on 3.3 V/5 V signal rails. Use Value: 17.8–19.7 V breakdown ensures no interference with normal logic levels while providing sub-ns response to ESD events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ16A | Lower PPPM (400 W), same DO-214AC (SMA) package, 16 V VWM, but not AEC-Q101 qualified | Targeted at consumer-grade power supplies; lacks automotive reliability validation and high-temp capability | Select SMAJ16A only for cost-sensitive, non-automotive designs where 400 W surge immunity suffices. |
| SMCJ16A | Same DO-214AB (SMC) package and 3000 W PPPM, but rated for 175 °C TJ max and not AEC-Q101 certified | Suitable for industrial use with extended temp range, but requires additional qualification for automotive deployment | Choose SMCJ16A for high-temp industrial systems needing identical mechanical fit and power rating without AEC-Q101 mandate. |
Compared with SMAJ16A and SMCJ16A, the 3KASMC16AHM3_A/H uniquely combines AEC-Q101 qualification, 185 °C operation, and DO-214AB packaging - making it the only drop-in option for production automotive ECUs requiring zero requalification of thermal and reliability margins.
Availability
3KASMC16AHM3_A/H is available at Aetrix Electronics and suitable for automotive body control modules, industrial motor drive power supplies, telecom power interfaces, and consumer appliance mainboard protection requiring stable component supply and full AEC-Q101 compliance.
Supply support for 3KASMC16AHM3_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 high-reliability diodes, MOSFETs, and optoelectronics for automotive, industrial, and computing markets.
The 3KASMC series belongs to Vishay's PAR® family of high-power TVS diodes, engineered specifically for AEC-Q101-compliant overvoltage protection in harsh-temperature automotive and industrial environments.
FAQ
What is the clamping voltage of the 3KASMC16AHM3_A/H under maximum surge conditions?
The 3KASMC16AHM3_A/H has a maximum clamping voltage (VC) of 26.0 V at 115 A peak pulse current (IPPM) using the 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and ensures protected circuits remain within safe operating limits during standardized surge events such as ISO 7637-2 Pulse 5a. The 3KASMC16AHM3_A/H maintains this clamping performance across its full temperature range.
Is the 3KASMC16AHM3_A/H suitable for automotive applications?
Yes, the 3KASMC16AHM3_A/H is AEC-Q101 qualified and rated for 185 °C maximum junction temperature - meeting stringent automotive reliability requirements for under-hood and powertrain applications. Its DO-214AB package, MSL Level 1 rating, and validated performance under load-dump and ESD stress make it suitable for use in body control modules, ADAS power supplies, and infotainment systems. The 3KASMC16AHM3_A/H is explicitly listed in Vishay's AEC-Q101 qualified product matrix.
What does the "HM3_A/H" suffix indicate in 3KASMC16AHM3_A/H?
The "HM3" suffix denotes the RoHS-compliant, AEC-Q101-qualified base package (DO-214AB/SMC). The "_A/H" indicates tape-and-reel packaging: "H" specifies 7-inch diameter reels with 850 units per reel, conforming to JEDEC standard delivery format. This ordering code ensures traceable, factory-verified configuration and eliminates ambiguity in procurement. The 3KASMC16AHM3_A/H is shipped in this exact configuration with full lot traceability.
How does the thermal performance of the 3KASMC16AHM3_A/H compare to similar TVS diodes?
The 3KASMC16AHM3_A/H features a typical junction-to-lead thermal resistance (RθJL) of 18.3 °C/W - significantly lower than standard SMA-packaged TVS diodes (~50–60 °C/W) and competitive with larger SMC alternatives. This enables higher sustained surge duty cycles without thermal runaway. Its RθJA of 77.5 °C/W assumes minimum recommended pad layout, and the 3KASMC16AHM3_A/H achieves full 3000 W rating only when mounted per Vishay's specified footprint.
Can the 3KASMC16AHM3_A/H replace older 3KASMC16A variants in existing designs?
Yes, the 3KASMC16AHM3_A/H is a direct replacement for earlier 3KASMC16A versions with HM3 suffixes (e.g., 3KASMC16AHM3/57T), sharing identical electrical specifications, DO-214AB package dimensions, pinout, and AEC-Q101 qualification. The "_A/H" denotes updated tape-and-reel packaging but does not alter device functionality or reliability. No PCB or schematic changes are required when migrating to the 3KASMC16AHM3_A/H.
3KASMC16AHM3_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):
- 16V
- Voltage - Breakdown (Min):
- 17.8V
- Voltage - Clamping (Max) @ Ipp:
- 28.8V
- Current - Peak Pulse (10/1000µs):
- 104A
- 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)
3KASMC16AHM3_A/H FAQ
1.How can I place an order for 3KASMC16AHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for 3KASMC16AHM3_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 3KASMC16AHM3_A/H reliable?
The price and inventory of 3KASMC16AHM3_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 3KASMC16AHM3_A/H is usually 5 days.
3.What payment methods are accepted for 3KASMC16AHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 3KASMC16AHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 3KASMC16AHM3_A/H?
3KASMC16AHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 3KASMC16AHM3_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 3KASMC16AHM3_A/H?
For technical support, including 3KASMC16AHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 3KASMC16AHM3_A/H requirements.
6.How does Aetrix verify that 3KASMC16AHM3_A/H is sourced from the original manufacturer or authorized distributors?
All 3KASMC16AHM3_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 3KASMC16AHM3_A/H meets industry standards.
7.What is the process for return or replacement of 3KASMC16AHM3_A/H?
All 3KASMC16AHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with 3KASMC16AHM3_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 3KASMC16AHM3_A/H part is unused and in its original packaging.
Return procedure for 3KASMC16AHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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