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Vishay General Semiconductor - Diodes Division SMC3K13CAHM3_A/I
- Part No.:
- SMC3K13CAHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMC3K13CAHM3_A/I.pdf
- Description:
- 3KW, 13V 5%,BIDIR,SMC TVS
- Quantity:
- Payment:
- Shipping:
Inventory:5,763
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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 automotive and industrial electronics protection. 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 ISO 7637-2 and ISO 16750-2 transient suppression on 12 V battery rails, sensor signal lines, and MOSFET gate drivers where fast response (<1 ns), low clamping ratio, and high surge current handling are critical.
Technical Context
This TVS diode operates in avalanche mode to clamp transients before downstream ICs or power devices are damaged. Its bidirectional structure enables symmetric protection against both positive and negative polarity surges without external polarity management. The device meets IEC 61000-4-2 ESD immunity up to ±30 kV (contact/air) and exhibits low incremental surge resistance for minimal voltage overshoot during high-current events.
Thermal design is supported by RthJM = 4.0 °C/W (junction-to-mount) and RthJA = 90 °C/W (junction-to-ambient), enabling reliable operation up to TJ = +175 °C. Its halogen-free, RoHS-compliant SMC package with matte tin-plated leads ensures solderability per J-STD-002 and whisker resistance per JESD 201 Class 2.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 13 V - Maximum continuous reverse operating voltage before conduction begins; defines safe operating margin below system nominal voltage. |
| VBR (Breakdown Voltage) | 14.4–15.9 V at 1 mA - Voltage at which avalanche conduction initiates; tight tolerance ensures predictable turn-on behavior. |
| VC (Clamping Voltage) | 21.5 V at 176 A (10/1000 μs) - Peak voltage seen by protected circuit during worst-case surge; low value preserves margin for 24 V tolerant components. |
| PPPM (Peak Pulse Power) | 3000 W - Maximum transient energy dissipation capability under standardized 10/1000 μs waveform; validates robustness against load dump and switching spikes. |
| IPPM (Peak Pulse Current) | 176 A (10/1000 μs) / 1103 A (8/20 μs) - Surge current handling capacity; higher 8/20 μs rating supports lightning-induced surge immunity per IEC 61000-4-5. |
| TJ max. | +175 °C - Maximum junction temperature rating; enables use in under-hood automotive environments and high-ambient industrial enclosures. |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD stress; required for ECUs, ADAS sensors, and body control modules. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, bidirectional configuration with no polarity marking. Dimensions: 7.11 mm × 6.22 mm × 2.62 mm (L × W × H); molded compound meets UL 94 V-0.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (Anode side of marking band) | Transient return path for negative surges | Acts as low-impedance sink during negative transients; symmetrical with anode terminal due to bidirectional construction. |
| Anode (Opposite cathode band) | Transient return path for positive surges | Acts as low-impedance sink during positive transients; identical electrical behavior to cathode terminal in bidirectional mode. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns-ideal for CAN, LIN, and sensor differential pairs. |
| 30 kW surge rating (8/20 μs) | Supports compliance with IEC 61000-4-5 Level 4 (4 kV line-to-ground) when used with appropriate series impedance, extending system-level surge survivability. |
| Low clamping ratio (VC/VBR ≈ 1.35) | Minimizes overvoltage stress on downstream components-critical for protecting 16 V-rated microcontrollers and analog front-ends in automotive domains. |
| MSL Level 1 (260 °C peak reflow) | Allows standard lead-free reflow assembly without moisture sensitivity concerns; eliminates pre-bake requirements and streamlines manufacturing. |
| UL 497B recognition (E136766) | Validates safety compliance for telecom and industrial interface ports requiring certified transient protection per UL standards. |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Digital Input Card |
|---|---|
Use Scenario: Protecting 12 V switched loads (e.g., solenoids, relays) from inductive kickback during de-energization per ISO 7637-2 Pulse 2a. IC Role / Device Role: Primary transient suppressor placed across load terminals to clamp reverse EMF spikes before reaching driver ICs. Use Value: Prevents latch-up or gate oxide damage in high-side/low-side N-channel MOSFET drivers by limiting voltage to ≤21.5 V during 112 V/50 μs transients. |
Use Scenario: Shielding 24 V digital input channels from field wiring transients induced by nearby motor drives or relay coils. IC Role / Device Role: Front-end TVS on each input channel, placed before optocoupler or Schmitt trigger input stage. Use Value: Ensures signal integrity and prevents false triggering by clamping 1 kV/50 Ω ring wave transients to <25 V at 100 A peak, maintaining noise margin. |
| Automotive Camera Module Power Rail | Telecom Ethernet PHY Interface |
Use Scenario: Safeguarding 12 V camera module power input against load dump pulses (ISO 16750-2 Pulse b, 101 V/400 ms). IC Role / Device Role: Primary rail protector upstream of DC/DC converter and image sensor supply. Use Value: Absorbs >300 J total energy over 5 pulses without degradation, verified via load dump testing per Fig. 9 in datasheet. |
Use Scenario: Protecting RJ45 port PHY lines (e.g., MDI/MDIX) from ESD and lightning-induced surges in outdoor network equipment. IC Role / Device Role: Secondary-level TVS after gas discharge tube (GDT), providing fast clamping for residual transients. Use Value: Delivers ±30 kV IEC 61000-4-2 contact ESD protection while maintaining <1 pF junction capacitance at zero bias (Fig. 5), preserving signal integrity up to 100 Mbps. |
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), but lower PPPM (400 W) and IPPM (32.4 A @ 10/1000 μs); SMA package (smaller footprint, higher RthJA = 150 °C/W). | Limited to low-energy transients (e.g., ESD-only); unsuitable for ISO 7637-2 Pulse 2a or load dump. | Select only for space-constrained consumer electronics where surge energy is <10 J and ambient temperature remains <85 °C. |
| SMCJ13CA | Identical VWM (13 V), VBR (14.4–15.9 V), and SMC package; rated for 1500 W PPPM (half the 3000 W of SMC3K13CAHM3_A). | Meets basic ISO 7637-2 Pulse 1/3 but not Pulse 2a or load dump; lacks AEC-Q101 qualification. | Choose for cost-sensitive industrial applications without automotive qualification requirements and moderate surge exposure. |
Compared with SMAJ13CA and SMCJ13CA, SMC3K13CAHM3_A delivers double the surge power handling, AEC-Q101 validation, and proven load dump endurance-making it the only option among the three qualified for under-hood automotive power rail protection.
Availability
SMC3K13CAHM3_A is available at Aetrix Electronics and suitable for automotive electronic control units, industrial programmable logic controllers, and telecom infrastructure requiring stable component supply with full traceability and long-term lifecycle support.
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 automotive, industrial, and computing markets.
The SMC3KxxCAHM3_A series was developed specifically for AEC-Q101-compliant transient suppression in harsh automotive environments, emphasizing high-power surge capability, thermal robustness, and halogen-free manufacturability.
FAQ
What is the maximum clamping voltage of SMC3K13CAHM3_A under a 10/1000 μs surge?
The SMC3K13CAHM3_A clamps to a maximum of 21.5 V when subjected to its rated peak pulse current of 176 A under the 10/1000 μs waveform. This value is measured at the device terminals and represents the worst-case voltage imposed on the protected circuit during standardized surge testing per IEC 61000-4-5 Annex A.
Is SMC3K13CAHM3_A qualified for automotive applications?
Yes, SMC3K13CAHM3_A is AEC-Q101 qualified, having passed stress tests including high-temperature reverse bias (HTRB), temperature cycling, and ESD per JESD22-A114. It is approved for use in automotive electronic control units, ADAS sensors, and body electronics where reliability under thermal and electrical stress is mandatory.
What packaging options are available for SMC3K13CAHM3_A?
SMC3K13CAHM3_A is supplied in 13-inch plastic tape and reel format with a base quantity of 3500 units per reel (suffix "I"). The alternate "H" suffix denotes 7-inch reels with 850 units. Both comply with JEDEC standard mounting pad layout and support automated SMT placement.
Does SMC3K13CAHM3_A meet UL safety certification?
Yes, SMC3K13CAHM3_A carries UL 497B recognition under file number E136766, confirming compliance with safety standards for transient voltage protection components used in telecommunications and industrial equipment. This certification covers flammability (UL 94 V-0), dielectric strength, and construction integrity.
How does SMC3K13CAHM3_A perform under ISO 16750-2 Pulse b (load dump)?
SMC3K13CAHM3_A is validated for ISO 16750-2 Pulse b (101 V, 400 ms) per Fig. 9 in the datasheet, demonstrating stable clamping performance across five pulses with no parameter shift. Its 3000 W rating and low Rsurge enable effective absorption of >300 J total energy without thermal runaway or parametric drift.
SMC3K13CAHM3_A/I 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:
- Telecom
- 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/I FAQ
1.How can I place an order for SMC3K13CAHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMC3K13CAHM3_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 SMC3K13CAHM3_A/I reliable?
The price and inventory of SMC3K13CAHM3_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 SMC3K13CAHM3_A/I is usually 5 days.
3.What payment methods are accepted for SMC3K13CAHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMC3K13CAHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMC3K13CAHM3_A/I?
SMC3K13CAHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMC3K13CAHM3_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 SMC3K13CAHM3_A/I?
For technical support, including SMC3K13CAHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMC3K13CAHM3_A/I requirements.
6.How does Aetrix verify that SMC3K13CAHM3_A/I is sourced from the original manufacturer or authorized distributors?
All SMC3K13CAHM3_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 SMC3K13CAHM3_A/I meets industry standards.
7.What is the process for return or replacement of SMC3K13CAHM3_A/I?
All SMC3K13CAHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SMC3K13CAHM3_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 SMC3K13CAHM3_A/I part is unused and in its original packaging.
Return procedure for SMC3K13CAHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMC3K13CAHM3_A/I Tags
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ESD9B5.0ST5G
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DESD3V3E1BL-7B
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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