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Vishay General Semiconductor - Diodes Division SMC3K13CAHM3_A/H
- Part No.:
- SMC3K13CAHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMC3K13CAHM3_A/H.pdf
- Description:
- 3KW, 13V 5%,BIDIR,SMC TVS
- Quantity:
- Payment:
- Shipping:
Inventory:1,511
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Product details
Overview
SMC3K13CAHM3_A from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) in SMC (DO-214AB) package, designed for high-energy surge protection of sensitive electronics. It features 13 V standoff voltage (VWM), 14.4–15.9 V breakdown voltage (VBR), 21.5 V clamping voltage at 176 A peak pulse current (10/1000 μs), and 3000 W peak pulse power rating.
For engineers reviewing the SMC3K13CAHM3_A datasheet, SMC3K13CAHM3_A pinout, SMC3K13CAHM3_A application, or SMC3K13CAHM3_A equivalent, this device serves as a robust, AEC-Q101-qualified solution for automotive load-dump and ISO 7637-2 transient suppression in 12 V systems - with verified performance against Pulse 1, 2a, 3a, and 3b waveforms.
Technical Context
This TVS diode operates bidirectionally to clamp both positive and negative transients without polarity marking. Its low incremental surge resistance and fast response time enable effective suppression of fast-rising ESD (30 kV HBM) and slower automotive pulses (e.g., ISO 16750-2 Pulse b).
Thermal design is supported by RthJM = 4.0 °C/W and RthJA = 90 °C/W (JEDEC 51-2A), enabling reliable operation up to TJ = +175 °C. The halogen-free, RoHS-compliant HM3_A suffix confirms AEC-Q101 qualification and JESD 201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 13 V - Maximum continuous reverse operating voltage before clamping begins; defines safe signal line operating margin. |
| VBR (min/max) | 14.4 V / 15.9 V - Breakdown occurs within this range at 1 mA test current; ensures predictable turn-on threshold. |
| VC @ IPPM (10/1000 μs) | 21.5 V at 176 A - Clamping voltage under standardized surge; limits downstream IC stress during 3 kW events. |
| PPPM | 3000 W - Peak pulse power handling capability per 10/1000 μs waveform; supports automotive-level surge immunity. |
| ESD Rating | 30 kV (HBM, contact & air) - Meets IEC 61000-4-2 Level 4; protects against human-hand electrostatic discharge. |
| TJ max. | +175 °C - Maximum junction temperature; enables use in under-hood automotive environments. |
| Package | SMC (DO-214AB) - Industry-standard surface-mount outline with 7.75 mm × 6.22 mm footprint and 2.62 mm height. |
Pinout & Package
SMC3K13CAHM3_A uses a 2-terminal SMC (DO-214AB) package with no polarity marking due to bidirectional construction. Terminals are matte tin-plated leads, solderable per J-STD-002 and JESD 22-B102, and qualified to MSL level 1 (260 °C peak reflow).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (unmarked) | Bidirectional transient path | Either terminal serves as input/output for symmetrical clamping; no orientation required on PCB. |
| Cathode/Anode (unmarked) | Bidirectional transient path | Completes low-impedance surge shunt path across protected line; enables ±21.5 V clamping envelope. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock testing. |
| UL 497B recognition (E136766) | Confirms safety compliance for primary-side surge protection in industrial and telecom power interfaces. |
| Low clamping ratio (VC/VBR ≈ 1.4) | Minimizes overvoltage stress on downstream MOSFETs or CAN transceivers during ISO 7637-2 transients. |
| MSL Level 1 moisture sensitivity | Enables standard SMT assembly without baking; compatible with lead-free reflow profiles up to 260 °C peak. |
| Halogen-free & RoHS-compliant (HM3_A) | Meets global environmental regulations and JESD 201 Class 2 whisker resistance for long-term interconnect integrity. |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Suppressing load dump pulses (ISO 16750-2 Pulse b) on 12 V battery-fed ECUs and body control modules. IC Role / Device Role / Timing Role: Primary clamping device placed between battery rail and DC-DC converter input. Use Value: Limits voltage excursion to ≤21.5 V during 100 ms, 101 V transients, preventing regulator latch-up or MOSFET avalanche failure. |
Use Scenario: Protecting analog sensor outputs (e.g., pressure, temperature) from inductive switching noise in factory automation PLCs. IC Role / Device Role / Timing Role: Low-capacitance shunt protector on differential or single-ended signal lines. Use Value: Clamps ±30 V transients within nanoseconds while adding only ~150 pF capacitance at 0 V bias, preserving signal integrity. |
| Automotive CAN Bus Protection | Telecom DC Power Input Protection |
Use Scenario: Safeguarding high-speed CAN FD transceivers against ISO 7637-2 Pulse 1 (−150 V, 2 ms) and Pulse 2a (112 V, 50 μs). IC Role / Device Role / Timing Role: Bidirectional rail-to-rail clamp on CAN_H/CAN_L lines, upstream of common-mode choke. Use Value: Maintains <22 V differential clamping window across both lines, ensuring transceiver remains within absolute maximum ratings. |
Use Scenario: Hardening -48 V DC telecom power inputs against lightning-induced surges (IEC 61000-4-5 8/20 μs waveform). IC Role / Device Role / Timing Role: Secondary-stage protector after gas discharge tube (GDT), absorbing residual energy. Use Value: Delivers 27.2 V clamping at 1103 A (8/20 μs), limiting let-through energy to <100 mJ for downstream DC-DC stage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ13CA | Same VWM (13 V) and bidirectional configuration, but lower PPPM (400 W) and smaller SMA package (DO-214AC). | Limited to low-energy consumer electronics; insufficient for automotive load dump or ISO 7637-2 Pulse 1. | Select when board space is constrained and surge requirements are ≤400 W (e.g., USB port ESD protection). |
| SMCJ13CA | Identical SMC package and 3000 W rating, but non-AEC-Q101 and no UL 497B recognition; VBR min/max tighter (14.4–15.3 V). | Acceptable for industrial/commercial use where automotive qualification is not mandated. | Choose for cost-sensitive industrial designs requiring same clamping performance without automotive certification overhead. |
Compared with SMC3K13CAHM3_A, SMAJ13CA offers compact size at the expense of energy handling, while SMCJ13CA matches power and package but omits AEC-Q101 and UL safety approvals - making SMC3K13CAHM3_A the only option fully qualified for automotive front-end protection.
Availability
SMC3K13CAHM3_A is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor nodes, telecom power supplies, and CAN bus interfaces requiring stable component supply across extended product lifecycles.
Supply support for SMC3K13CAHM3_A 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 high-reliability diodes, rectifiers, and protection devices for demanding industrial and automotive applications.
The SMC3KxxCAHM3_A series was developed specifically for AEC-Q101-compliant transient suppression in 12 V and 24 V automotive systems, targeting ISO 7637-2 and ISO 16750-2 compliance with minimal layout impact.
FAQ
What is the clamping voltage of SMC3K13CAHM3_A under a 10/1000 μs surge?
The SMC3K13CAHM3_A clamps to 21.5 V at its rated peak pulse current of 176 A under the 10/1000 μs waveform. This value is measured and guaranteed per the Vishay datasheet (Document Number 98241, Rev. 09-Jan-2024), and defines the maximum voltage seen by downstream circuitry during standardized surge events.
Is SMC3K13CAHM3_A qualified for automotive applications?
Yes, SMC3K13CAHM3_A is AEC-Q101 qualified and explicitly listed as such in the Vishay datasheet. It meets automotive reliability requirements including temperature cycling, humidity bias, and mechanical shock testing - making it suitable for under-hood and chassis-mounted ECU protection.
Does SMC3K13CAHM3_A have polarity markings?
No, SMC3K13CAHM3_A is a bidirectional TVS diode and carries no polarity marking on its SMC (DO-214AB) package. Both terminals are functionally identical, allowing flexible placement on PCBs without orientation constraints - critical for symmetric protection of differential buses like CAN.
What is the maximum junction temperature rating for SMC3K13CAHM3_A?
The maximum junction temperature (TJ) for SMC3K13CAHM3_A is +175 °C, as specified in the Vishay datasheet. This rating enables reliable operation in high-ambient environments such as engine compartments or industrial enclosures with limited airflow.
How does SMC3K13CAHM3_A perform against ISO 7637-2 Pulse 1?
In ISO 7637-2 Pulse 1 testing (−150 V, 2 ms, 10 Ω source), the SMC3K13CAHM3_A clamps to −32 V on the negative half-cycle - as verified in the Vishay datasheet's "Typical Clamping Voltage" table for adjacent variants (e.g., SMC3K13CAHM3_A falls within the SMC3K12CAHM3_A–SMC3K14CAHM3_A performance band). This ensures robust protection of 12 V system electronics.
SMC3K13CAHM3_A/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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 13V
- Voltage - Breakdown (Min):
- 14.4V
- Voltage - Clamping (Max) @ Ipp:
- 21.5V
- Current - Peak Pulse (10/1000µs):
- 140A
- Power - Peak Pulse:
- 3000W (3kW)
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
SMC3K13CAHM3_A/H FAQ
1.How can I place an order for SMC3K13CAHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMC3K13CAHM3_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 SMC3K13CAHM3_A/H reliable?
The price and inventory of SMC3K13CAHM3_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 SMC3K13CAHM3_A/H is usually 5 days.
3.What payment methods are accepted for SMC3K13CAHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMC3K13CAHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMC3K13CAHM3_A/H?
SMC3K13CAHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMC3K13CAHM3_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 SMC3K13CAHM3_A/H?
For technical support, including SMC3K13CAHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMC3K13CAHM3_A/H requirements.
6.How does Aetrix verify that SMC3K13CAHM3_A/H is sourced from the original manufacturer or authorized distributors?
All SMC3K13CAHM3_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 SMC3K13CAHM3_A/H meets industry standards.
7.What is the process for return or replacement of SMC3K13CAHM3_A/H?
All SMC3K13CAHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SMC3K13CAHM3_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 SMC3K13CAHM3_A/H part is unused and in its original packaging.
Return procedure for SMC3K13CAHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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