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Vishay General Semiconductor - Diodes Division 5KASMC16AHM3_A/I
- Part No.:
- 5KASMC16AHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
5KASMC16AHM3_A/I.pdf
- Description:
- TVS DIODE 16VWM 26VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,922
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Product details
Overview
5KASMC16AHM3_A/I from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, rated for 16 V stand-off voltage (VWM), 17.8–19.7 V breakdown (VBR), 5000 W peak pulse power (10/1000 μs), 26.0 V clamping voltage at 192.3 A surge current, and operation up to +185 °C junction temperature. It protects automotive sensor signal lines and MOSFET gates against inductive switching transients.
For engineers reviewing the 5KASMC16AHM3_A/I datasheet, 5KASMC16AHM3_A/I pinout, 5KASMC16AHM3_A/I application, or 5KASMC16AHM3_A/I equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, MSL Level 1 rating, 100 °C/W junction-to-ambient thermal resistance, and halogen-free RoHS-compliant construction per HM3 suffix.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology optimized for high-temperature stability and low incremental surge resistance. Its 185 °C maximum junction temperature and AEC-Q101 qualification support under-hood automotive deployment where thermal derating and reliability are critical.
The device delivers 5000 W peak pulse power with a 10/1000 μs waveform and clamps at ≤26.0 V when subjected to 192.3 A peak surge current. Its 2.0 μA max reverse leakage at 16 V stand-off and 0.081 %/°C VBR temperature coefficient ensure stable protection behavior across industrial and automotive temperature ranges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 16 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR (min/typ/max) | 17.8 / 18.8 / 19.7 V - Breakdown occurs within this range at 1 mA test current, defining turn-on threshold |
| VC @ IPPM | 26.0 V - Clamping voltage during 192.3 A 10/1000 μs surge, limiting downstream voltage stress |
| PPPM (10 × 1000 μs) | 5000 W - Peak transient energy absorption capability without failure |
| TJ max. | +185 °C - Enables use in high-temperature environments such as engine control units |
| Polarity | Unidirectional - Protects against positive-going transients only; cathode band denotes terminal |
| MSL Rating | Level 1 (260 °C peak reflow) - Supports standard SMT assembly without moisture sensitivity concerns |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including HTGB, HTRB, and TCT stress tests |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, matte tin-plated leads, UL 94 V-0 molding compound, cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to circuit ground or lowest potential node during clamping |
| Cathode | High-side transient input terminal | Connected to protected line; absorbs surge current into ground via anode |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation | Optimized anisotropic rectifier structure reduces leakage drift and improves long-term stability at 150–185 °C |
| Peak pulse power | 5000 W (10/1000 μs) enables robust protection of 12 V automotive power rails and CAN/FlexRay signal lines |
| Clamping ratio (VC/VBR) | ~1.38 - Low overvoltage margin ensures tight protection window for 3.3 V/5 V logic interfaces |
| Thermal resistance (RθJA) | 100 °C/W - Allows direct PCB mounting on minimum recommended pad layout without heatsink |
| Halogen-free & RoHS | HM3 suffix confirms compliance with automotive environmental standards and solderability per J-STD-002 |
Applications
| Automotive Engine Control Unit (ECU) | Industrial Motor Drive I/O Protection |
|---|---|
Use Scenario: Protecting microcontroller GPIO and LIN bus transceivers from load-dump and inductive kickback in 12 V vehicle systems. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between signal line and chassis ground to shunt transients below IC damage threshold. Use Value: With 26.0 V clamping and AEC-Q101 qualification, 5KASMC16AHM3_A/I prevents latch-up and gate oxide rupture in 3.3 V/5 V automotive MCUs. | Use Scenario: Safeguarding PLC analog input channels connected to 4–20 mA sensors exposed to field wiring surges. IC Role / Device Role / Timing Role: Standoff-rated TVS placed across input terminals to limit transient voltage before precision op-amp front-end. Use Value: 16 V VWM matches common 24 V industrial supply rails, while 5000 W PPPM handles repetitive switching noise in factory-floor environments. |
| Automotive Camera Module Power Rail | Telecom Base Station DC Feeder Line |
Use Scenario: Securing 12 V power input to ADAS camera modules mounted near engine compartments. IC Role / Device Role / Timing Role: Primary overvoltage clamp on main power rail, coordinated with upstream fuse and downstream LDO. Use Value: 185 °C TJ max and 100 °C/W RθJA allow reliable operation inside sealed enclosures without forced air cooling. | Use Scenario: Protecting remote radio head (RRH) power inputs from lightning-induced surges on outdoor DC feeder cables. IC Role / Device Role / Timing Role: First-stage TVS on -48 V telecom supply line, absorbing bulk energy before secondary regulation. Use Value: 5000 W rating and low clamping voltage reduce need for cascaded protection stages, lowering BOM cost and board space. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ16A | Lower PPPM (600 W), same VWM (16 V), SMC-compatible but smaller SMB (DO-214AA) package | Not AEC-Q101 qualified; limited to commercial/industrial use | Select when cost and board space are prioritized over automotive reliability and surge margin |
| SMCJ16A | Same PPPM (5000 W), identical SMC package, but not halogen-free and lacks HM3 suffix compliance | Not RoHS-compliant per latest Vishay material categorization; may not meet Tier-1 automotive sourcing requirements | Choose only if legacy design validation exists and halogen-free/AEC-Q101 traceability is not mandated |
Compared with SMBJ16A and SMCJ16A, the 5KASMC16AHM3_A/I provides verified AEC-Q101 qualification, halogen-free construction, and guaranteed MSL Level 1 handling-making it the sole option meeting full Tier-1 automotive production requirements for high-energy transient suppression.
Availability
5KASMC16AHM3_A/I is available at Aetrix Electronics and suitable for automotive ECU designs, industrial motor drive I/O protection, and telecom DC feeder line hardening requiring stable component supply, long-term lifecycle assurance, and AEC-Q101-compliant sourcing.
Supply support for 5KASMC16AHM3_A/I 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 components.
The 5KASMC series was developed specifically for demanding automotive and industrial transient suppression, combining high-temperature junction capability (185 °C), AEC-Q101 qualification, and 5000 W surge robustness in the SMC footprint.
FAQ
What is the maximum clamping voltage of the 5KASMC16AHM3_A/I under a 10/1000 μs surge?
The 5KASMC16AHM3_A/I 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 TJ = 25 °C and defines the upper voltage limit imposed on protected circuitry during transient events. The 5KASMC16AHM3_A/I maintains this clamping performance across its full operating temperature range due to its low VBR temperature coefficient of 0.081 %/°C.
Is the 5KASMC16AHM3_A/I qualified for automotive applications?
Yes, the 5KASMC16AHM3_A/I is AEC-Q101 qualified, meaning it has passed rigorous stress tests including high-temperature reverse bias (HTRB), high-temperature gate bias (HTGB), and temperature cycling (TCT). Its 185 °C maximum junction temperature, MSL Level 1 rating, and halogen-free HM3 construction make the 5KASMC16AHM3_A/I suitable for under-hood and body-control module applications in passenger vehicles and commercial vehicles.
What does the "HM3_A/I" suffix indicate in 5KASMC16AHM3_A/I?
The "HM3" suffix denotes halogen-free, RoHS-compliant construction and AEC-Q101 qualification; "A" is the revision code; "I" indicates packaging in 13-inch diameter plastic tape and reel with a base quantity of 3500 units. The 5KASMC16AHM3_A/I meets JESD201 Class 2 whisker resistance and J-STD-002 solderability standards, distinguishing it from non-HM3 variants that lack automotive environmental compliance.
How does the thermal performance of the 5KASMC16AHM3_A/I compare to standard SMC TVS diodes?
The 5KASMC16AHM3_A/I features a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on the minimum recommended pad layout, matching industry-standard SMC packages. However, its junction-to-mount (RθJM) is 20.8 °C/W-optimized for direct thermal coupling to copper planes-enabling sustained 6.5 W power dissipation at TM = 50 °C. This thermal design supports higher reliability in thermally constrained automotive layouts compared to generic SMC TVS parts without validated high-TJ operation.
Can the 5KASMC16AHM3_A/I be used in bidirectional configurations?
No, the 5KASMC16AHM3_A/I is unidirectional only, as explicitly stated in the Vishay datasheet. It conducts and clamps only for positive transients applied to the cathode relative to the anode. For bidirectional protection, two 5KASMC16AHM3_A/I devices must be connected in series opposition, or a dedicated bidirectional TVS such as the 5KASMC16CA should be selected. Using the 5KASMC16AHM3_A/I in reverse-biased configurations risks permanent breakdown due to absence of symmetrical avalanche characteristics.
5KASMC16AHM3_A/I 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):
- 192.3A
- 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 (SMC)
5KASMC16AHM3_A/I FAQ
1.How can I place an order for 5KASMC16AHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for 5KASMC16AHM3_A/I 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_A/I reliable?
The price and inventory of 5KASMC16AHM3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5KASMC16AHM3_A/I is usually 5 days.
3.What payment methods are accepted for 5KASMC16AHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5KASMC16AHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 5KASMC16AHM3_A/I?
5KASMC16AHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5KASMC16AHM3_A/I 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_A/I?
For technical support, including 5KASMC16AHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5KASMC16AHM3_A/I requirements.
6.How does Aetrix verify that 5KASMC16AHM3_A/I is sourced from the original manufacturer or authorized distributors?
All 5KASMC16AHM3_A/I 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_A/I meets industry standards.
7.What is the process for return or replacement of 5KASMC16AHM3_A/I?
All 5KASMC16AHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with 5KASMC16AHM3_A/I, 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_A/I part is unused and in its original packaging.
Return procedure for 5KASMC16AHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
5KASMC16AHM3_A/I Tags
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