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Vishay General Semiconductor - Diodes Division SMC5K13A-M3/H
- Part No.:
- SMC5K13A-M3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMC5K13A-M3/H.pdf
- Description:
- TVS DIODE 13VWM 21.5VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,426
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Product details
Overview
SMC5K13A-M3/H from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for robust overvoltage protection of sensitive electronics. It features a 14.4 V minimum breakdown voltage (VBR), 13 V stand-off voltage (VWM), and clamps to 21.5 V at 233 A peak pulse current (10/1000 μs), delivering 5000 W peak pulse power for surge suppression on power rails and signal lines.
For engineers reviewing the SMC5K13A-M3/H datasheet, SMC5K13A-M3/H pinout, SMC5K13A-M3/H application, or SMC5K13A-M3/H equivalent, this device is selected for high-energy transient immunity in automotive power supplies, industrial sensor interfaces, and telecom DC input stages where fast response (<1 ns), low clamping voltage, and AEC-Q101 qualification are critical design requirements.
Technical Context
This TVS diode operates as a unidirectional clamping device with a single PN junction optimized for rapid avalanche conduction under transient overvoltage. Its thermal resistance junction-to-mount (RthJM) is 4.0 °C/W, enabling effective heat dissipation during repetitive surges when mounted on copper pads per JEDEC 51-14.
The device meets IEC 61000-4-2 ESD immunity up to 30 kV (contact/air), complies with UL 497B (E136766), and is halogen-free/RoHS-compliant (M3 suffix). It is rated for operation from –55 °C to +150 °C and qualified to AEC-Q101 for automotive use - though only SMC5K10A–SMC5K20A variants carry HM3 automotive ordering codes; SMC5K13A-M3/H is industrial-grade with M3 suffix.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 14.4 V / 15.9 V at 1.0 mA - defines reliable avalanche initiation threshold for consistent clamping onset |
| VWM | 13 V - maximum continuous reverse operating voltage before leakage exceeds 2.0 μA |
| VC @ IPPM (10/1000 μs) | 21.5 V at 233 A - clamping voltage under standard surge waveform; determines protected circuit's maximum stress level |
| PPPM | 5000 W - peak pulse power handling capability with 10/1000 μs waveform, defining surge energy absorption capacity |
| Junction Temp (TJ max) | +150 °C - maximum allowable junction temperature; sets thermal derating envelope for sustained operation |
| ESD Rating | 30 kV HBM (contact & air) - ensures resilience against electrostatic discharge events in assembly and field environments |
| Package | SMC (DO-214AB) - surface-mount outline with 0.320" length, 0.246" width, and matte tin-plated leads per J-STD-002 |
Pinout & Package
SMC5K13A-M3/H uses the standard SMC (DO-214AB) package: a molded plastic case with two coplanar gull-wing leads, cathode indicated by a color band. The device is polarity-sensitive and must be oriented with the banded end connected to the protected line's higher-potential side (e.g., VIN or signal source).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or return path; establishes reference for unidirectional clamping action |
| Cathode | High-side surge input terminal | Connected to protected line (e.g., 12 V rail or sensor output); absorbs transient energy into ground via avalanche conduction |
Key Features
| Feature | Design Value |
|---|---|
| 5000 W peak pulse power (10/1000 μs) | Enables protection against high-energy transients such as ISO 7637-2 Pulse 1/2a/5a in automotive 12 V systems |
| 21.5 V clamping voltage at 233 A | Limits downstream IC stress to safe levels during 10/1000 μs surges, preserving MOSFET gate oxide and logic supply integrity |
| Unidirectional configuration | Provides DC-blocking protection without affecting normal forward-biased operation of power or signal paths |
| MSL Level 1, 260 °C reflow compatible | Supports lead-free PCB assembly without moisture-induced popcorn failure or delamination |
| Halogen-free, RoHS-compliant (M3) | Fulfills environmental compliance requirements for industrial and consumer electronics sold in EU, China, and North America |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Protection |
|---|---|
|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and inductive switching transients per ISO 7637-2. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VBAT and GND to clamp surges above 13 V before they reach LDOs and microcontrollers. Use Value: Clamps to 21.5 V at 233 A, limiting stress on downstream 24 V-rated regulators and ensuring system reset-free operation during 100 V/50 ms load dump events. |
Use Scenario: Shielding analog outputs of pressure/temperature sensors in factory automation PLC modules from EFT and surge coupling. IC Role / Device Role / Timing Role: TVS installed across sensor output and ground to shunt fast transients induced by nearby motor drives or relay switching. Use Value: Sub-1 ns response time and 2.0 μA leakage at 13 V preserve signal accuracy and prevent false triggering in 4–20 mA or 0–10 V analog loops. |
| Telecom DC Power Feeds | Computer Peripheral USB VBUS Protection |
|
Use Scenario: Safeguarding PoE-powered equipment front-end rectifiers and DC/DC converters from lightning-induced surges on 48 V DC distribution lines. IC Role / Device Role / Timing Role: Primary clamping device on the 48 V input rail, coordinated with upstream fuses and secondary filtering. Use Value: 5000 W rating and 21.5 V clamping enable compliance with IEC 61000-4-5 Level 4 (4 kV line-earth) when used with appropriate series impedance. |
Use Scenario: Adding robust overvoltage defense to USB Type-A/C host ports against hot-plug transients and adapter faults. IC Role / Device Role / Timing Role: Unidirectional TVS on VBUS line to clamp overvoltage spikes before they damage USB controller PHY or power switches. Use Value: 13 V stand-off allows normal 5 V operation while clamping 12 V+ faults to 21.5 V, preventing latch-up in 5 V tolerant silicon without adding series resistance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ13A-M3/84A | Lower peak pulse power (600 W vs. 5000 W); SMB (DO-214AA) package; same VWM (13 V) and VBR range (14.4–15.9 V) | Targeted for lower-energy transients (e.g., ESD-only, not load dump); unsuitable for ISO 7637-2 Pulse 5a | Select SMC5K13A-M3/H when surge energy exceeds 600 W or when board layout accommodates larger SMC footprint for thermal margin. |
| SMC5K13CA-M3/H | Bi-directional variant; identical VBR, VWM, and PPPM; symmetric clamping for AC or bidirectional signal lines | Required for protecting differential buses (e.g., RS-485, CAN) or AC-coupled signals where reverse polarity surges occur | Choose SMC5K13A-M3/H for DC power rails or unidirectional signals; select SMC5K13CA-M3/H only if bidirectional clamping is explicitly needed. |
Compared with SMBJ13A-M3/84A and SMC5K13CA-M3/H, the SMC5K13A-M3/H delivers 8.3× higher surge power handling than the SMBJ variant and offers unidirectional optimization for DC systems-making it the preferred choice for high-reliability 12 V/24 V power rail protection where space permits the SMC outline and polarity is fixed.
Availability
SMC5K13A-M3/H is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interface modules, and telecom DC power feed designs requiring stable component supply, long-term lifecycle support, and traceable sourcing for production ramp.
Supply support for SMC5K13A-M3/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, TVS devices, and optoelectronics with emphasis on reliability, ruggedness, and application-specific performance.
The SMC5KxxA family was engineered for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom infrastructure where failure due to voltage surges must be eliminated through proven clamping performance and AEC-Q101 or industrial-grade qualification.
FAQ
What is the breakdown voltage tolerance for SMC5K13A-M3/H?
The SMC5K13A-M3/H has a specified breakdown voltage (VBR) range of 14.4 V to 15.9 V at 1.0 mA test current, representing a ±5.3% tolerance about the nominal 15.15 V midpoint. This tight distribution ensures predictable clamping onset across production lots and supports robust design margins in 12 V systems where VBR must exceed VWM (13 V) by ≥1.4 V while remaining below downstream IC absolute maximum ratings.
Is SMC5K13A-M3/H qualified for automotive use?
The SMC5K13A-M3/H carries the industrial-grade M3 suffix and is not AEC-Q101 qualified. While the SMC5K13A die is part of the AEC-Q101-qualified SMC5K10A–SMC5K20A family, only parts ordered with the HM3 suffix (e.g., SMC5K13AHM3_A/H) meet AEC-Q101. SMC5K13A-M3/H is intended for industrial, telecom, and computing applications where automotive qualification is not required.
What is the maximum clamping voltage of SMC5K13A-M3/H under an 8/20 μs surge?
Under an 8/20 μs surge waveform, the SMC5K13A-M3/H clamps to a maximum of 27.2 V at its rated peak pulse current of 1471 A. This value is measured per IEC 61000-4-5 test conditions and reflects higher instantaneous power handling than the 10/1000 μs condition - critical for evaluating protection against lightning-induced surges where faster rise times dominate.
Does SMC5K13A-M3/H have a defined junction capacitance value?
No junction capacitance (CJ) value is specified for SMC5K13A-M3/H in the official Vishay datasheet (Document Number: 87742). While Fig. 5 shows typical CJ trends for the SMC5KxxA family versus VWM, no discrete value is published for the 13 V variant. For high-speed signal line protection where capacitance matters, designers should verify layout parasitics or consider TVS devices with published CJ specs.
How does the thermal resistance of SMC5K13A-M3/H affect its surge duty cycle?
The SMC5K13A-M3/H has RthJM = 4.0 °C/W and RthJA = 90 °C/W. Under repeated 10/1000 μs surges, junction temperature rise is dominated by RthJM when mounted on adequate copper; for example, a single 5000 W pulse causes ~20 °C ΔT. However, >1 Hz repetition requires thermal derating per Fig. 2 - the SMC5K13A-M3/H can sustain ≤100 W average power continuously with proper heatsinking, limiting high-frequency surge duty cycles in compact layouts.
SMC5K13A-M3/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 13V
- Voltage - Breakdown (Min):
- 14.4V
- Voltage - Clamping (Max) @ Ipp:
- 21.5V
- Current - Peak Pulse (10/1000µs):
- 232.6A
- Power - Peak Pulse:
- 5000W (5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
SMC5K13A-M3/H FAQ
1.How can I place an order for SMC5K13A-M3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMC5K13A-M3/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 SMC5K13A-M3/H reliable?
The price and inventory of SMC5K13A-M3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMC5K13A-M3/H is usually 5 days.
3.What payment methods are accepted for SMC5K13A-M3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMC5K13A-M3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMC5K13A-M3/H?
SMC5K13A-M3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMC5K13A-M3/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 SMC5K13A-M3/H?
For technical support, including SMC5K13A-M3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMC5K13A-M3/H requirements.
6.How does Aetrix verify that SMC5K13A-M3/H is sourced from the original manufacturer or authorized distributors?
All SMC5K13A-M3/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 SMC5K13A-M3/H meets industry standards.
7.What is the process for return or replacement of SMC5K13A-M3/H?
All SMC5K13A-M3/H units undergo pre-shipment inspection (PSI). If there is an issue with SMC5K13A-M3/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 SMC5K13A-M3/H part is unused and in its original packaging.
Return procedure for SMC5K13A-M3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMC5K13A-M3/H Tags
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