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Vishay General Semiconductor - Diodes Division 5KASMC16AHM3/57
- Part No.:
- 5KASMC16AHM3/57
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
5KASMC16AHM3/57.pdf
- Description:
- TVS DIODE 16VWM 26VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,270
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Product details
Overview
5KASMC16AHM3/57 from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in DO-214AB (SMCJ) package, designed for high-energy surge clamping on power and signal lines. It features 16 V stand-off voltage (VWM), 17.8–19.7 V breakdown (VBR at 1 mA), 26.0 V maximum clamping voltage (VC) at 192.3 A peak pulse current, and 5000 W peak pulse power (10/1000 µs). Used to protect MOSFETs, ICs, and sensor signal lines in automotive ECUs and industrial motor drives.
For engineers reviewing the 5KASMC16AHM3/57 datasheet, 5KASMC16AHM3/57 pinout, 5KASMC16AHM3/57 application, or 5KASMC16AHM3/57 equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, 185 °C junction rating, low incremental surge resistance, and compatibility with automated SMT assembly under MSL Level 1 (260 °C peak).
Technical Context
This TVS diode employs passivated anisotropic rectifier technology optimized for stable clamping under repetitive surge stress and high-temperature operation up to TJ = 185 °C. Its unidirectional configuration enables DC-biased line protection without reverse conduction during normal operation.
The device delivers 5000 W peak pulse power per 10/1000 µs waveform with 26.0 V clamping at 192.3 A, achieving low dynamic impedance (≈135 mΩ) and fast response time (<1 ns). Thermal resistance is 100 °C/W (junction-to-ambient, mounted on minimum pad) and 20.8 °C/W (junction-to-mount), supporting reliable performance on PCBs with limited copper area.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 16 V - Maximum continuous reverse operating voltage before clamping begins; sets safe margin below system DC rail. |
| VBR (Breakdown Voltage) | 17.8–19.7 V at 1 mA - Confirmed avalanche onset range; ensures predictable turn-on during transients. |
| VC (Clamping Voltage) | 26.0 V at 192.3 A - Peak voltage seen by protected circuit during 5000 W surge; defines worst-case stress level. |
| PPPM | 5000 W (10/1000 µs) - High-energy surge handling capability suitable for ISO 7637-2 Pulse 5a/b and IEC 61000-4-5 applications. |
| TJ max. | 185 °C - Enables use in under-hood automotive environments and high-power industrial enclosures without derating. |
| Polarity | Unidirectional - Blocks reverse current only; requires correct orientation relative to DC bias; not suitable for AC line protection. |
| Package | DO-214AB (SMCJ) - Standardized SMT outline with cathode band marking; supports 850-unit 7″ tape-and-reel delivery (code /57). |
Pinout & Package
Package: DO-214AB (SMCJ), surface-mount, molded plastic case with matte tin-plated leads, halogen-free and RoHS-compliant (HM3 suffix), MSL Level 1 rated (260 °C peak reflow).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point | Connected to ground or lowest potential node; completes clamping path during overvoltage events. |
| Cathode | High-side connection point | Marked by color band; connected to protected line (e.g., 12 V supply or CAN_H); conducts avalanche current into ground. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and surge endurance per JESD47. |
| 185 °C junction rating | Enables operation in high-ambient environments (e.g., engine control modules) without thermal shutdown or parameter drift. |
| 5000 W peak pulse power | Withstands severe load-dump and inductive switching surges common in 12 V vehicle electrical systems. |
| Low clamping ratio (VC/VBR ≈ 1.42) | Indicates high efficiency in energy diversion; minimizes voltage overshoot across protected components. |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow profiles without baking; simplifies manufacturing logistics. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Clamping |
|---|---|
Use Scenario: Protecting 12 V battery-fed microcontrollers and gate drivers in engine control units against ISO 7637-2 Pulse 5a (load dump) and Pulse 1 (inductive switch-off). IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and chassis ground to clamp transients within safe voltage limits. Use Value: Limits clamped voltage to 26.0 V, well below typical 36 V absolute maximum ratings of automotive MCUs and MOSFETs. |
Use Scenario: Safeguarding analog outputs (e.g., 4–20 mA current loops) and digital sensor interfaces (e.g., LIN bus) from ESD and cable discharge events in factory automation equipment. IC Role / Device Role / Timing Role: Low-capacitance TVS mounted directly at connector entry point to shunt fast transients before reaching sensitive front-end circuitry. Use Value: Sub-1 ns response time and 26.0 V clamping prevent latch-up or damage to op-amps and ADC inputs operating at ±15 V rails. |
| Telecom DC Power Input Protection | Consumer Appliance Motor Drive Surge Suppression |
Use Scenario: Securing 48 V DC input stages of base station power supplies and PoE injectors against lightning-induced surges per IEC 61000-4-5 (1.2/50 µs + 8/20 µs combo wave). IC Role / Device Role / Timing Role: Primary-level TVS on bulk input rail, coordinated with upstream MOVs and downstream filtering. Use Value: 5000 W rating and 185 °C TJ allow sustained operation in sealed telecom enclosures with elevated ambient temperatures. |
Use Scenario: Shielding BLDC motor driver ICs and Hall-effect position sensors from commutation spikes in washing machine and HVAC fan modules. IC Role / Device Role / Timing Role: Parallel-connected TVS across half-bridge output nodes to absorb inductive kickback energy. Use Value: 26.0 V clamping prevents overvoltage failure of 30 V-rated gate drivers and protects isolated feedback paths from coupling noise. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ16A-E3/57 | Same DO-214AC (SMA) package but lower 400 W PPPM; VC = 26.0 V at 15.4 A; TJ max = 150 °C. | Not AEC-Q101 qualified; unsuitable for automotive under-hood use; limited to consumer/industrial board-level protection. | Select when cost sensitivity outweighs surge energy requirements and automotive qualification is unnecessary. |
| SMCJ16AHE3/57 | Same DO-214AB (SMCJ) package and 5000 W rating; VC = 26.0 V at 192.3 A; identical clamping, but TJ max = 175 °C and no AEC-Q101 certification. | Lacks automotive qualification; may require additional validation for automotive programs; lower thermal margin above 150 °C. | Choose if AEC-Q101 is not mandated and design operates below 175 °C junction temperature. |
Compared with SMAJ16A-E3/57 and SMCJ16AHE3/57, the 5KASMC16AHM3/57 provides higher junction temperature capability (185 °C vs. 150/175 °C), formal AEC-Q101 qualification, and guaranteed MSL Level 1 handling-making it the only option qualified for production automotive electronics without additional component-level testing.
Availability
5KASMC16AHM3/57 is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interface modules, and telecom DC power input stages requiring stable component supply, long-term lifecycle support, and AEC-Q101 compliance.
Supply support for 5KASMC16AHM3/57 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-qualified solutions.
The 5KASMC series was developed specifically for demanding automotive and industrial transient suppression, combining high surge power, extended temperature operation, and robust packaging to meet stringent AEC-Q101 and J-STD-020 requirements.
FAQ
What is the clamping voltage of the 5KASMC16AHM3/57 under full-rated surge current?
The 5KASMC16AHM3/57 has a maximum clamping voltage (VC) of 26.0 V when subjected to its rated peak pulse current of 192.3 A using the standard 10/1000 µs waveform. This value is measured at TA = 25 °C and represents the upper limit of voltage imposed on the protected circuit during worst-case surge conditions. The 5KASMC16AHM3/57 maintains this clamping performance across its full operating temperature range due to its stable avalanche characteristics.
Is the 5KASMC16AHM3/57 suitable for automotive applications?
Yes, the 5KASMC16AHM3/57 is AEC-Q101 qualified and rated for junction temperatures up to 185 °C, making it suitable for under-hood automotive applications such as engine control units, body control modules, and ADAS power supplies. Its DO-214AB package meets MSL Level 1, and the HM3 suffix confirms halogen-free, RoHS-compliant construction. The 5KASMC16AHM3/57 is explicitly listed in Vishay's AEC-Q101 qualified product catalog for transient suppression.
What does the "/57" suffix indicate in 5KASMC16AHM3/57?
The "/57" suffix in 5KASMC16AHM3/57 denotes the preferred packaging code for 7-inch diameter plastic tape-and-reel delivery, containing 850 units per reel. This format is optimized for high-volume SMT placement and aligns with industry-standard JEDEC carrier specifications. The "HM3" portion indicates halogen-free, RoHS-compliant construction with JESD201 Class 2 whisker resistance and AEC-Q101 qualification. The 5KASMC16AHM3/57 is fully compatible with standard reflow profiles.
How does the 5KASMC16AHM3/57 compare to standard SMCJ-series TVS diodes?
The 5KASMC16AHM3/57 belongs to Vishay's enhanced PAR® (Passivated Anisotropic Rectifier) family and offers identical DO-214AB (SMCJ) mechanical form factor and 5000 W surge rating as legacy SMCJ16A devices-but with improved high-temperature stability (TJ = 185 °C vs. 175 °C), AEC-Q101 qualification, and tighter parametric consistency. Unlike generic SMCJ parts, the 5KASMC16AHM3/57 undergoes additional screening for automotive reliability, including HTRB and temperature cycling. The 5KASMC16AHM3/57 also features optimized junction passivation for reduced leakage drift over time.
Can the 5KASMC16AHM3/57 be used in bidirectional configurations?
No, the 5KASMC16AHM3/57 is strictly unidirectional and must be oriented with the cathode (marked band) toward the positive side of the protected line. It does not provide symmetrical clamping for AC or bipolar signals. For bidirectional protection, two 5KASMC16AHM3/57 devices would need to be connected in series opposition-or a dedicated bidirectional part like 5KASMC16CAHM3/57 should be selected. Using the 5KASMC16AHM3/57 in reverse bias beyond VWM risks permanent breakdown.
5KASMC16AHM3/57 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:
- 26V
- 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)
5KASMC16AHM3/57 FAQ
1.How can I place an order for 5KASMC16AHM3/57 through Aetrix?
Please submit a Request for Quotation (RFQ) for 5KASMC16AHM3/57 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 5KASMC16AHM3/57 reliable?
The price and inventory of 5KASMC16AHM3/57 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5KASMC16AHM3/57 is usually 5 days.
3.What payment methods are accepted for 5KASMC16AHM3/57?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5KASMC16AHM3/57 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 5KASMC16AHM3/57?
5KASMC16AHM3/57 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5KASMC16AHM3/57 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 5KASMC16AHM3/57?
For technical support, including 5KASMC16AHM3/57 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5KASMC16AHM3/57 requirements.
6.How does Aetrix verify that 5KASMC16AHM3/57 is sourced from the original manufacturer or authorized distributors?
All 5KASMC16AHM3/57 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 5KASMC16AHM3/57 meets industry standards.
7.What is the process for return or replacement of 5KASMC16AHM3/57?
All 5KASMC16AHM3/57 units undergo pre-shipment inspection (PSI). If there is an issue with 5KASMC16AHM3/57, 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 5KASMC16AHM3/57 part is unused and in its original packaging.
Return procedure for 5KASMC16AHM3/57:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
5KASMC16AHM3/57 Tags
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