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Vishay General Semiconductor - Diodes Division 3KASMC16HE3_A/H
- Part No.:
- 3KASMC16HE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
3KASMC16HE3_A/H.pdf
- Description:
- TVS DIODE 16VWM 28.8VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,981
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Product details
Overview
3KASMC16HE3_A/H from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in DO-214AB (SMC) package, rated for 3000 W peak pulse power (10/1000 μs), 16 V stand-off voltage (VWM), and 17.8–19.7 V breakdown voltage (VBR) at 1 mA test current. It delivers clamping voltage of 26.0 V at 115 A peak surge current and operates up to +185 °C junction temperature, targeting automotive power rail and sensor line protection.
For engineers reviewing the 3KASMC16HE3_A/H datasheet, 3KASMC16HE3_A/H pinout, 3KASMC16HE3_A/H application, or 3KASMC16HE3_A/H equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, MSL Level 1 rating, 18.3 °C/W junction-to-lead thermal resistance, and compatibility with high-reliability automotive ECUs and industrial motor control interfaces.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology optimized for high-temperature stability and low incremental surge resistance. Its 185 °C maximum junction temperature and AEC-Q101 qualification confirm suitability for under-hood automotive environments where thermal cycling and long-term reliability are critical.
The device exhibits fast response time and excellent clamping capability with 26.0 V VC at IPPM = 115 A (10/1000 μs), while maintaining only 1.0 μA reverse leakage at VWM = 16 V and TJ = 150 °C. Its DO-214AB package supports soldering per J-STD-002 and passes JESD 201 Class 2 whisker testing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 16 V - Maximum continuous reverse operating voltage before clamping begins; defines safe signal/power line standoff level. |
| VBR (min/max) | 17.8 V / 19.7 V at IT = 1 mA - Confirmed breakdown threshold range ensures predictable turn-on during transients. |
| VC @ IPPM | 26.0 V at 115 A - Clamping voltage under 3000 W surge; limits downstream IC stress during load dump or inductive switching. |
| PPPM | 3000 W (10/1000 μs) - Peak surge power handling capacity validated per ANSI/IEEE C62.35 standards. |
| TJ max. | +185 °C - Enables operation in high-ambient environments such as engine control units without derating penalties. |
| RθJL | 18.3 °C/W - Low junction-to-lead thermal resistance supports efficient heat transfer to PCB copper pads. |
| AEC-Q101 | Qualified - Meets stress test requirements for automotive discrete semiconductors including HTGB, HTRB, and TCT. |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, matte tin-plated leads, cathode indicated by color band. Complies with UL 94 V-0 flammability rating and MSL Level 1 (peak reflow 260 °C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction | Connected to protected circuit ground or low-side return path; enables unidirectional clamping to ground. |
| Cathode | Current exit terminal during forward conduction; marked by color band | Connected to protected line (e.g., 12 V rail or sensor output); defines clamping direction and polarity. |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation | Optimized anisotropic rectifier design improves long-term reliability under thermal cycling and humidity exposure. |
| High-temperature operation | Rated for TJ = 185 °C - eliminates need for oversized heatsinking in compact automotive modules. |
| Surge robustness | 3000 W peak pulse power (10/1000 μs) withstands ISO 7637-2 Pulse 5a/b load dump events. |
| Low clamping ratio | VC/VBR ≈ 1.38 - tight voltage margin between breakdown and clamping ensures minimal overvoltage stress on protected ICs. |
| Automotive qualification | AEC-Q101 qualified and RoHS-compliant - meets OEM sourcing requirements for production-grade automotive electronics. |
Applications
| Automotive Power Rail Protection | Industrial Motor Drive I/O Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed microcontroller power inputs against load dump transients in engine control units. IC Role / Device Role / Timing Role: Unidirectional TVS clamp connected between VCC and GND to shunt surge energy away from LDO and MCU. Use Value: Withstands 3000 W surges and clamps at 26.0 V, preventing latch-up or permanent damage to 3.3 V/5 V logic rails downstream. |
Use Scenario: Safeguarding analog input lines of PLC analog I/O modules exposed to relay coil back-EMF. IC Role / Device Role / Timing Role: Transient suppressor placed across sensor signal and reference ground to absorb inductive kickback. Use Value: 1.0 μA leakage at 16 V ensures minimal impact on 16-bit ADC accuracy; 115 A surge rating covers worst-case 24 V DC solenoid switching. |
| Automotive Sensor Signal Line Protection | Telecom Power Interface Protection |
Use Scenario: Shielding LIN bus transceiver pins from ESD and cable discharge events in body control modules. IC Role / Device Role / Timing Role: Unidirectional TVS mounted directly at connector interface to limit voltage excursion on TX/RX lines. Use Value: Fast response time and 26.0 V clamping prevent false triggering or damage to LIN PHY; AEC-Q101 ensures field longevity. |
Use Scenario: Guarding PoE-powered Ethernet switch port DC input against lightning-induced surges on outdoor installations. IC Role / Device Role / Timing Role: Primary surge suppression stage on 48 V DC input rail upstream of DC/DC converter. Use Value: 185 °C rating allows placement near hot-switching components; DO-214AB footprint supports automated assembly and high-current trace routing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ16A | Lower PPPM (400 W), same VWM (16 V), DO-214AC (SMA) package, RθJA = 100 °C/W | Not AEC-Q101 qualified; suitable for commercial-grade consumer or telecom equipment only | Select when cost sensitivity outweighs automotive qualification and surge margin requirements. |
| SMCJ16A | Same PPPM (3000 W), identical DO-214AB package, but VBR min = 17.8 V (same), TJ max = 175 °C (10 °C lower) | Lacks AEC-Q101 certification; used in industrial automation where extended temperature is less critical | Choose if AEC-Q101 is not mandated and 175 °C operation suffices for system thermal profile. |
Compared with SMAJ16A and SMCJ16A, the 3KASMC16HE3_A/H provides superior automotive readiness via AEC-Q101 qualification and 185 °C operation, while matching SMCJ16A's surge capability and exceeding both in thermal robustness and long-term reliability under cyclic stress.
Availability
3KASMC16HE3_A/H is available at Aetrix Electronics and suitable for automotive electronic control units, industrial motor drives, and telecom power interface designs requiring stable component supply, full traceability, and lifecycle continuity.
Supply support for 3KASMC16HE3_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, MOSFETs, and TVS devices with emphasis on high-reliability, high-temperature, and automotive-qualified solutions.
The 3KASMC series was developed specifically for demanding automotive and industrial applications requiring robust transient suppression, extended temperature operation, and AEC-Q101 compliance in surface-mount form factor.
FAQ
What is the polarity configuration of the 3KASMC16HE3_A/H?
The 3KASMC16HE3_A/H is a unidirectional TVS diode, meaning it conducts only in reverse bias during overvoltage events. Its cathode is marked by a color band on the DO-214AB package, and it must be oriented with cathode toward the protected line and anode to ground to function correctly. This configuration ensures precise clamping behavior for positive-going transients on DC power or signal lines.
Is the 3KASMC16HE3_A/H qualified for automotive use?
Yes, the 3KASMC16HE3_A/H is AEC-Q101 qualified, having passed all required stress tests including high-temperature reverse bias (HTRB), high-temperature gate bias (HTGB), and temperature cycling (TCT). This qualification confirms its suitability for production automotive applications such as engine control units, body electronics, and ADAS sensor interfaces.
What is the maximum clamping voltage of the 3KASMC16HE3_A/H under surge conditions?
The 3KASMC16HE3_A/H has a maximum clamping voltage (VC) of 26.0 V at 115 A peak pulse current (IPPM), measured using the standard 10/1000 μs waveform. This value is guaranteed across temperature and ensures that protected downstream components-such as 3.3 V or 5 V MCUs-remain within safe operating voltage limits during transient events like load dump or inductive switching.
Does the 3KASMC16HE3_A/H meet moisture sensitivity level (MSL) requirements for lead-free reflow?
Yes, the 3KASMC16HE3_A/H meets MSL Level 1 per J-STD-020, with a maximum peak reflow temperature of 260 °C. This allows unlimited floor life and compatibility with standard lead-free soldering processes without baking or special handling, simplifying manufacturing for high-volume automotive and industrial PCB assembly.
How does the thermal performance of the 3KASMC16HE3_A/H compare to similar TVS diodes?
The 3KASMC16HE3_A/H features a typical junction-to-lead thermal resistance (RθJL) of 18.3 °C/W, significantly lower than many competing DO-214AB TVS devices. This enables more efficient heat transfer to the PCB copper, supporting higher sustained power dissipation and improved reliability in thermally constrained layouts-especially critical in densely packed automotive ECUs where ambient temperatures exceed 125 °C.
3KASMC16HE3_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)
3KASMC16HE3_A/H FAQ
1.How can I place an order for 3KASMC16HE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for 3KASMC16HE3_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 3KASMC16HE3_A/H reliable?
The price and inventory of 3KASMC16HE3_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 3KASMC16HE3_A/H is usually 5 days.
3.What payment methods are accepted for 3KASMC16HE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 3KASMC16HE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 3KASMC16HE3_A/H?
3KASMC16HE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 3KASMC16HE3_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 3KASMC16HE3_A/H?
For technical support, including 3KASMC16HE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 3KASMC16HE3_A/H requirements.
6.How does Aetrix verify that 3KASMC16HE3_A/H is sourced from the original manufacturer or authorized distributors?
All 3KASMC16HE3_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 3KASMC16HE3_A/H meets industry standards.
7.What is the process for return or replacement of 3KASMC16HE3_A/H?
All 3KASMC16HE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with 3KASMC16HE3_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 3KASMC16HE3_A/H part is unused and in its original packaging.
Return procedure for 3KASMC16HE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
3KASMC16HE3_A/H Tags
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