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Vishay General Semiconductor - Diodes Division SMC3K60CAHM3_A/I
- Part No.:
- SMC3K60CAHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMC3K60CAHM3_A/I.pdf
- Description:
- 3KW, 60V 5%,BIDIR,SMC TVS
- Quantity:
- Payment:
- Shipping:
Inventory:8,650
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Product details
Overview
SMC3K60CAHM3_A from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) designed for high-energy surge protection in automotive and industrial power rails. It delivers 3000 W peak pulse power (10/1000 μs), clamps at 96.8 V under 31.0 A IPPM, and features a 60 V stand-off voltage (VWM) with 66.7–73.7 V breakdown range. It is AEC-Q101 qualified and meets ISO 7637-2 and ISO 16750-2 for automotive load dump and switching transient immunity.
For engineers reviewing the SMC3K60CAHM3_A datasheet, SMC3K60CAHM3_A pinout, SMC3K60CAHM3_A application, or SMC3K60CAHM3_A equivalent, this device is selected for robust overvoltage protection of 12 V/24 V battery-fed systems-especially where fast response (<1 ns), low clamping ratio (VC/VWM ≈ 1.61), and MSL Level 1 reflow compatibility are required.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector triggered by reverse-biased avalanche breakdown. Its bidirectional architecture enables symmetrical clamping for both positive and negative transients without polarity sensitivity. The SMC (DO-214AB) package provides low thermal resistance (RthJM = 4.0 °C/W) and supports high surge current handling up to 240 A (8/20 μs).
It complies with IEC 61000-4-2 ESD (±30 kV contact/air) and is characterized for junction temperatures from –55 °C to +175 °C. Clamping performance is validated per ISO 7637-2 Pulse 1, 2a, 3a, and 3b waveforms, with measured clamping voltages ≤ ±96.8 V at rated peak current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 60 V - Maximum continuous reverse operating voltage before conduction begins; defines safe operating margin below clamping threshold. |
| VBR (Breakdown Voltage) | 66.7–73.7 V at 1 mA - Confirmed avalanche initiation range; ensures reliable turn-on during transients exceeding VWM. |
| VC (Clamping Voltage) | 96.8 V at 31.0 A (10/1000 μs) - Peak voltage seen by protected circuit during worst-case surge; determines downstream component stress. |
| PPPM (Peak Pulse Power) | 3000 W (10/1000 μs) - Sustained energy absorption capability; validates suitability for ISO 7637-2 Pulse 5a (load dump) events. |
| IPPM (Peak Pulse Current) | 31.0 A (10/1000 μs), 240 A (8/20 μs) - Surge current capacity defining minimum trace/solder joint robustness requirements. |
| TJ max. | +175 °C - Enables operation 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 per JESD22-A114. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, halogen-free, RoHS-compliant, matte tin-plated leads. Molding compound meets UL 94 V-0. Polarity not marked (bidirectional).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (marked end) | Anode/Cathode terminal pair | Bidirectional terminals - either lead serves as anode or cathode depending on transient polarity; no orientation dependency in PCB layout. |
| Anode (unmarked end) | Anode/Cathode terminal pair | Electrically identical to cathode pin; symmetric construction eliminates need for polarity-aware placement. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or dual-polarity DC lines without external polarity management. |
| 30 kW surge rating (8/20 μs) | Supports compliance with IEC 61000-4-5 Level 4 (4 kV line-to-line) when used with appropriate series impedance. |
| Low clamping ratio (VC/VWM = 1.61) | Minimizes voltage overshoot across protected ICs or MOSFETs, reducing risk of gate oxide rupture or logic upset. |
| MSL Level 1, 260 °C peak reflow | Permits standard lead-free SMT assembly without moisture-related popcorning or delamination concerns. |
| UL 497B recognition (E136766) | Validates safety compliance for telecom and industrial signal line protection applications requiring certified surge devices. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 12 V battery-supplied ECUs against load dump (ISO 16750-2 Pulse b) and inductive switching spikes (ISO 7637-2 Pulse 1/2a). IC Role / Device Role / Timing Role: Shunt-type transient suppressor placed directly across power input pins of microcontrollers, CAN transceivers, and power management ICs. Use Value: Limits transient voltage to ≤96.8 V during 31 A surges, preventing latch-up or permanent damage to 3.3 V/5 V logic and analog front-ends. |
Use Scenario: Safeguarding RS-485, CAN FD, or analog sensor signal lines (e.g., pressure, temperature) in factory automation PLCs exposed to EMI and ground bounce. IC Role / Device Role / Timing Role: Bidirectional TVS placed between differential pairs or single-ended lines and ground to clamp ESD and fast transients. Use Value: With ±30 kV IEC 61000-4-2 ESD rating and <1 ns response, it prevents data corruption and interface IC failure without adding signal distortion. |
| Telecom DC Power Feeds | Consumer Appliance Motor Drive Inputs |
|
Use Scenario: Protecting PoE-powered equipment (e.g., IP cameras, access points) from surges entering via 48 V DC input lines during lightning-induced coupling. IC Role / Device Role / Timing Role: Primary-level TVS mounted at board edge before DC-DC converter input stage. Use Value: Absorbs 3000 W pulses while maintaining clamping below 100 V, ensuring downstream converters remain within absolute maximum ratings. |
Use Scenario: Shielding BLDC motor driver inputs in washing machines or HVAC systems from commutation spikes generated by brushed or brushless motors. IC Role / Device Role / Timing Role: Parallel-connected TVS across H-bridge supply rails to divert inductive kickback energy away from gate drivers and MCU I/O. Use Value: With 175 °C max junction temperature and AEC-Q101 qualification, it sustains repeated surge exposure in thermally demanding appliance enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ60A-E3/5A (Vishay) | Lower PPPM (400 W), SMA package (smaller footprint), unidirectional only, no AEC-Q101 qualification. | Suitable for cost-sensitive consumer electronics with lower surge threat levels; not recommended for automotive or industrial mains-connected systems. | Select SMC3K60CAHM3_A when 3000 W surge handling, bidirectional symmetry, or AEC-Q101 compliance is mandatory. |
| 1.5KE60CA (ON Semiconductor) | Through-hole DO-201 package, same 60 V VWM and bidirectional function, but higher RthJA (60 °C/W vs. 90 °C/W), no AEC-Q101, UL 497B not claimed. | Applicable in legacy industrial designs with through-hole assembly; lacks automotive qualification and modern reflow compatibility. | Choose SMC3K60CAHM3_A for new SMT designs requiring automotive-grade reliability, MSL Level 1, and superior thermal performance in compact layouts. |
Compared with SMAJ60A-E3/5A and 1.5KE60CA, the SMC3K60CAHM3_A delivers 7.5× higher peak pulse power in a surface-mount package with automotive qualification, lower clamping voltage per watt, and verified compliance with ISO 7637-2 and IEC 61000-4-2-making it the preferred choice for next-generation vehicle ECUs and ruggedized industrial controllers.
Availability
SMC3K60CAHM3_A is available at Aetrix Electronics and suitable for automotive ECU design, industrial sensor interface protection, and telecom DC feed applications requiring stable component supply, long-term lifecycle support, and AEC-Q101 assurance.
Supply support for SMC3K60CAHM3_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 12 V/24 V automotive power networks and harsh-environment industrial control systems.
FAQ
What is the clamping voltage of SMC3K60CAHM3_A at its rated peak pulse current?
The SMC3K60CAHM3_A clamps to 96.8 V at its specified peak pulse current of 31.0 A under the 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and confirmed in the Vishay datasheet (Document Number: 98241, Rev. 09-Jan-2024). The clamping voltage directly determines the maximum stress imposed on downstream components during surge events, making it a critical parameter for system-level overvoltage margin analysis.
Is SMC3K60CAHM3_A suitable for automotive applications requiring AEC-Q101 qualification?
Yes, the SMC3K60CAHM3_A is explicitly AEC-Q101 qualified, as stated in the Vishay datasheet and confirmed by test records covering HTGB, HTRB, TCT, and ESD per JESD22-A114. This qualification validates its use in automotive powertrain, body control, and ADAS modules where reliability under thermal cycling, vibration, and electrical stress is mandatory. The SMC3K60CAHM3_A meets all stress test requirements defined in the AEC-Q101 standard.
What is the standoff voltage (VWM) and breakdown voltage range for SMC3K60CAHM3_A?
The SMC3K60CAHM3_A has a standoff voltage (VWM) of 60 V and a breakdown voltage (VBR) range of 66.7 V to 73.7 V at 1 mA test current. This 6.7 V minimum margin between VWM and VBR ensures stable non-conduction during normal operation while guaranteeing rapid, repeatable avalanche turn-on during overvoltage events. The specification is fully documented in Table 1 of the Vishay datasheet (98241).
Does SMC3K60CAHM3_A support lead-free reflow soldering?
Yes, the SMC3K60CAHM3_A is rated for MSL Level 1 per J-STD-020 and supports peak reflow temperatures up to 260 °C, making it compatible with standard lead-free SAC305 soldering profiles. Its matte tin-plated leads meet J-STD-002 and JESD22-B102 solderability requirements, and the HM3 suffix confirms compliance with JESD201 Class 2 whisker testing-ensuring long-term interconnect integrity in production assemblies.
How does the bidirectional nature of SMC3K60CAHM3_A affect PCB layout?
The SMC3K60CAHM3_A is bidirectional with no polarity marking, meaning either terminal functions identically as anode or cathode depending on transient polarity. This eliminates orientation constraints during placement-no silkscreen polarity indicator is needed, and the device can be rotated 180° on the PCB without functional impact. Layout simplification reduces assembly errors and supports automated optical inspection (AOI) without polarity validation steps.
SMC3K60CAHM3_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):
- 60V
- Voltage - Breakdown (Min):
- 66.7V
- Voltage - Clamping (Max) @ Ipp:
- 96.8V
- Current - Peak Pulse (10/1000µs):
- 31A
- Power - Peak Pulse:
- 3000W (3kW)
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
SMC3K60CAHM3_A/I FAQ
1.How can I place an order for SMC3K60CAHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMC3K60CAHM3_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 SMC3K60CAHM3_A/I reliable?
The price and inventory of SMC3K60CAHM3_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 SMC3K60CAHM3_A/I is usually 5 days.
3.What payment methods are accepted for SMC3K60CAHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMC3K60CAHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMC3K60CAHM3_A/I?
SMC3K60CAHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMC3K60CAHM3_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 SMC3K60CAHM3_A/I?
For technical support, including SMC3K60CAHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMC3K60CAHM3_A/I requirements.
6.How does Aetrix verify that SMC3K60CAHM3_A/I is sourced from the original manufacturer or authorized distributors?
All SMC3K60CAHM3_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 SMC3K60CAHM3_A/I meets industry standards.
7.What is the process for return or replacement of SMC3K60CAHM3_A/I?
All SMC3K60CAHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SMC3K60CAHM3_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 SMC3K60CAHM3_A/I part is unused and in its original packaging.
Return procedure for SMC3K60CAHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMC3K60CAHM3_A/I Tags
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DESD3V3E1BL-7B
Diodes Incorporated
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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