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Vishay General Semiconductor - Diodes Division 3KASMC16AHM3_B/H
- Part No.:
- 3KASMC16AHM3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
3KASMC16AHM3_B/H.pdf
- Description:
- TVS DIODE 16VWM 26VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:6,820
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Product details
Overview
3KASMC16AHM3_B/H from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor in SMC (DO-214AB) package, rated for 16 V stand-off voltage (VWM), 17.8–19.7 V breakdown (VBR), 3000 W peak pulse power (10/1000 μs), and 185 °C maximum junction temperature. It protects MOSFETs and sensor signal lines in automotive powertrain control modules against inductive switching transients.
For engineers reviewing the 3KASMC16AHM3_B/H datasheet, 3KASMC16AHM3_B/H pinout, 3KASMC16AHM3_B/H application, or 3KASMC16AHM3_B/H equivalent, key selection criteria include clamping voltage at rated surge current, AEC-Q101 qualification status, thermal resistance (RθJL = 18.3 °C/W), and halogen-free RoHS compliance per ordering suffix HM3.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology with junction passivation optimized for high-reliability operation up to TJ = 185 °C. Its unidirectional polarity and low incremental surge resistance enable precise clamping during fast-rising transients induced by inductive load switching.
The device meets MSL level 1 per J-STD-020 with 260 °C lead-free reflow capability and is qualified to AEC-Q101 for automotive use. Its 10/1000 μs waveform response delivers 115 A peak pulse current (IPPM) with 26.0 V maximum clamping voltage (VC), ensuring robust protection without over-clamping sensitive downstream ICs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 16 V - Maximum continuous reverse operating voltage before conduction begins; defines safe signal line bias margin. |
| VBR (min–max) | 17.8–19.7 V at 1.0 mA - Confirmed breakdown range ensures predictable turn-on threshold across production lots. |
| VC @ IPPM | 26.0 V at 115 A - Clamping voltage under full-rated 3000 W surge; limits stress on protected MOSFET gate oxide. |
| PPPM | 3000 W (10/1000 μs) - Peak transient energy handling capacity suitable for ISO 7637-2 Pulse 1 & 2a automotive tests. |
| TJ max. | +185 °C - Enables placement near high-temperature engine-control electronics without derating. |
| RθJL | 18.3 °C/W - Low junction-to-lead thermal resistance supports sustained power dissipation on standard PCB copper. |
| AEC-Q101 | Qualified - Validated for automotive underhood applications per stress test requirements including HTGB, HTRB, and TCT. |
Pinout & Package
Package: SMC (DO-214AB), molded case meeting UL 94 V-0; matte tin-plated leads solderable per J-STD-002; cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during clamping | Connected to protected circuit ground or low-side return path; must route with low-inductance trace. |
| Cathode | Current exit point during clamping | Connected to protected line (e.g., 12 V rail or sensor output); color band identifies this terminal. |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation optimized design | Enables stable leakage performance (<1.0 μA at VWM) and long-term reliability under thermal cycling. |
| TJ = 185 °C capability | Supports mounting directly on engine control unit (ECU) PCBs adjacent to power MOSFETs without thermal derating. |
| 3000 W peak pulse power (10/1000 μs) | Withstands repetitive load-dump surges per ISO 16750-2 without degradation or parametric shift. |
| Halogen-free, RoHS-compliant (HM3 suffix) | Fulfills automotive OEM material compliance requirements including VW 80101 and GMW3172. |
| MSL Level 1, 260 °C peak reflow | Compatible with standard lead-free SMT assembly processes without moisture sensitivity concerns. |
Applications
| Automotive Powertrain Control | Industrial Motor Drive Protection |
|---|---|
Use Scenario: Protecting gate drivers and high-side switches in 12 V/24 V engine control units exposed to alternator load dump and solenoid coil flyback. IC Role / Device Role: Unidirectional TVS clamp placed between gate driver output and MOSFET gate, limiting transient overshoot to <26 V. Use Value: Prevents gate oxide rupture in automotive-grade SiC MOSFETs during ISO 7637-2 Pulse 5a events. |
Use Scenario: Safeguarding encoder feedback lines and PWM input traces in variable-frequency drives operating in factory environments with heavy inductive loads. IC Role / Device Role: Signal-line TVS mounted at connector interface to shunt ESD and switching noise before reaching FPGA I/O banks. Use Value: Maintains signal integrity below 26 V clamping threshold while surviving >100,000 surge cycles per IEC 61000-4-5. |
| Automotive Sensor Interface | Telecom DC Power Input |
Use Scenario: Shielding analog outputs of pressure and temperature sensors in ADAS domain controllers from battery rail transients. IC Role / Device Role: Low-capacitance unidirectional TVS placed inline with sensor output trace, referenced to local ground plane. Use Value: Delivers 26.0 V clamping at 115 A without distorting mV-level sensor signals due to minimal leakage (<1.0 μA). |
Use Scenario: Front-end transient suppression on +48 V DC telecom power inputs subjected to lightning-induced surges per IEC 61000-4-5 Level 4. IC Role / Device Role: Primary-stage TVS in series with upstream fuse and downstream DC-DC converter input filter. Use Value: Absorbs 3000 W surge energy while maintaining clamping below 26 V to protect 50 V-rated input capacitors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ16AHE3_A/H | Same VWM (16 V), lower PPPM (600 W), SMB package (smaller footprint, higher RθJA = 110 °C/W) | Limited to lower-energy transients; unsuitable for ISO 7637-2 Pulse 5a or load dump. | Select when board space is constrained and surge energy remains ≤600 W. |
| SMCJ16AHE3_A/H | Same VWM (16 V), identical PPPM (3000 W), same SMC package, but HE3 suffix (not halogen-free) | Meets AEC-Q101 but lacks halogen-free certification required by Tier 1 automotive specs. | Choose only if halogen-free compliance is not mandated by end-customer material declaration. |
Compared with 3KASMC16AHM3_B/H, SMBJ16AHE3_A/H trades surge capacity for compactness, while SMCJ16AHE3_A/H matches power rating but omits halogen-free construction-making 3KASMC16AHM3_B/H the sole option satisfying AEC-Q101, 3000 W, and VW/GM halogen-free requirements simultaneously.
Availability
3KASMC16AHM3_B/H is available at Aetrix Electronics and suitable for automotive powertrain control, industrial motor drive protection, and telecom DC power input applications requiring stable component supply with full AEC-Q101 traceability and halogen-free compliance.
Supply support for 3KASMC16AHM3_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 designs and manufactures discrete semiconductors including diodes, rectifiers, and TVS devices, with emphasis on high-reliability, high-temperature, and automotive-qualified components.
The 3KASMCxxA family was developed specifically for demanding automotive and industrial transient suppression, combining PAR® technology, AEC-Q101 qualification, and extended junction temperature capability up to +185 °C.
FAQ
What is the clamping voltage of the 3KASMC16AHM3_B/H under full-rated surge current?
The 3KASMC16AHM3_B/H has a maximum clamping voltage (VC) of 26.0 V when subjected to its rated peak pulse current (IPPM) of 115 A using the 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and ensures protected circuits remain within safe voltage margins during worst-case transients.
Is the 3KASMC16AHM3_B/H qualified to AEC-Q101?
Yes, the 3KASMC16AHM3_B/H is AEC-Q101 qualified. The HM3 suffix explicitly denotes halogen-free, RoHS-compliant, and AEC-Q101-qualified construction, validated across stress tests including high-temperature reverse bias (HTRB), high-temperature gate bias (HTGB), and temperature cycling (TCT).
What does the "HM3" suffix indicate in 3KASMC16AHM3_B/H?
The "HM3" suffix in 3KASMC16AHM3_B/H signifies halogen-free, RoHS-compliant, and AEC-Q101-qualified construction. It distinguishes this variant from HE3 versions (RoHS-compliant and AEC-Q101-qualified but not halogen-free) and confirms compliance with automotive OEM material standards such as VW 80101.
Can the 3KASMC16AHM3_B/H be used in bidirectional configurations?
No, the 3KASMC16AHM3_B/H is unidirectional only, as confirmed in the Vishay datasheet. It conducts in reverse bias during overvoltage events and blocks forward current; bidirectional protection requires pairing two devices or selecting a dedicated bidirectional TVS such as the SMBJ16CAHE3_A/H.
What is the thermal resistance from junction to leads (RθJL) for the 3KASMC16AHM3_B/H?
The 3KASMC16AHM3_B/H has a typical junction-to-leads thermal resistance (RθJL) of 18.3 °C/W, measured under standard conditions. This low value enables efficient heat transfer to PCB copper pads and supports reliable operation at elevated ambient temperatures without external heatsinking.
3KASMC16AHM3_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):
- 16V
- Voltage - Breakdown (Min):
- 17.8V
- Voltage - Clamping (Max) @ Ipp:
- 26V
- Current - Peak Pulse (10/1000µs):
- 115A
- 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)
3KASMC16AHM3_B/H FAQ
1.How can I place an order for 3KASMC16AHM3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for 3KASMC16AHM3_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 3KASMC16AHM3_B/H reliable?
The price and inventory of 3KASMC16AHM3_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 3KASMC16AHM3_B/H is usually 5 days.
3.What payment methods are accepted for 3KASMC16AHM3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 3KASMC16AHM3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 3KASMC16AHM3_B/H?
3KASMC16AHM3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 3KASMC16AHM3_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 3KASMC16AHM3_B/H?
For technical support, including 3KASMC16AHM3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 3KASMC16AHM3_B/H requirements.
6.How does Aetrix verify that 3KASMC16AHM3_B/H is sourced from the original manufacturer or authorized distributors?
All 3KASMC16AHM3_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 3KASMC16AHM3_B/H meets industry standards.
7.What is the process for return or replacement of 3KASMC16AHM3_B/H?
All 3KASMC16AHM3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with 3KASMC16AHM3_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 3KASMC16AHM3_B/H part is unused and in its original packaging.
Return procedure for 3KASMC16AHM3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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