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Vishay General Semiconductor - Diodes Division SMC3K58CAHM3/9A
- Part No.:
- SMC3K58CAHM3/9A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMC3K58CAHM3/9A.pdf
- Description:
- TVS DIODE 58VWM 93.6VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,608
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Product details
Overview
SMC3K58CAHM3/9A from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for high-energy surge protection with 3000 W peak pulse power (10/1000 μs), 64.4–71.2 V breakdown voltage, and 93.6 V maximum clamping voltage at 32.1 A peak pulse current. It is AEC-Q101 qualified and used to protect MOSFETs, ICs, and sensor signal lines in automotive and industrial power electronics.
For engineers reviewing the SMC3K58CAHM3/9A datasheet, SMC3K58CAHM3/9A pinout, SMC3K58CAHM3/9A application, or SMC3K58CAHM3/9A equivalent, key selection criteria include clamping voltage vs. protected device VDS/VCC, standoff voltage margin relative to operating rail, thermal derating above 25 °C, and AEC-Q101 qualification status for automotive deployment.
Technical Context
This TVS operates as a voltage-clamped shunt protector triggered by transient overvoltage events. Its bidirectional structure enables symmetrical clamping on both polarities without external polarity biasing, and its low incremental surge resistance ensures minimal voltage overshoot during fast transients.
The device uses silicon avalanche junction technology with precise VBR tolerance (±5% typical), meets J-STD-020 MSL Level 1 moisture sensitivity, and supports lead-free reflow up to 260 °C peak. It is not recommended for bottom-side wave soldering due to thermal stress limitations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 64.4 V / 71.2 V - defines minimum trigger threshold and maximum variation band under 1 mA test current |
| VWM | 58 V - maximum continuous reverse working voltage; must exceed system rail voltage with safety margin |
| VC @ IPPM | 93.6 V - clamping voltage at 32.1 A peak pulse; determines worst-case overvoltage seen by protected circuit |
| PPPM | 3000 W - peak pulse power handling with 10/1000 μs waveform; sets energy absorption capability |
| IPPM | 32.1 A - peak surge current corresponding to 3000 W at 93.6 V clamping |
| TJ max | 150 °C - maximum junction temperature; constrains thermal design and power derating above 25 °C |
| Polarity | Bidirectional - provides symmetrical protection against positive and negative transients without polarity dependency |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, halogen-free, RoHS-compliant, AEC-Q101 qualified. Dimensions: 7.11 mm × 6.22 mm × 2.62 mm (L × W × H). Matte tin-plated leads, solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (marked end) | Common terminal for bidirectional clamping | No functional polarity marking; terminals are symmetric-either end connects to protected line or ground |
| Anode (unmarked end) | Common terminal for bidirectional clamping | Identical electrical role to cathode; device functions identically regardless of orientation in PCB layout |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress test plan |
| 3000 W peak pulse power | Enables robust protection against ISO 7637-2 Pulse 5a/b and IEC 61000-4-5 Level 4 surges without cascaded stages |
| MSL Level 1 rating | Allows unlimited floor life and standard reflow profile without baking preconditioning |
| Low incremental surge resistance | Minimizes dynamic voltage overshoot during fast-rising transients (<1 ns rise time) |
| UL 497B recognition | Confirms compliance with safety standards for telecom and industrial signal line protection applications |
Applications
| Automotive Power Distribution | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V power rails in body control modules against load dump and inductive switching transients. IC Role / Device Role / Timing Role: Shunt-type transient voltage suppressor placed between power rail and chassis ground. Use Value: Clamps transients to ≤93.6 V, preventing damage to downstream DC-DC converters and microcontrollers rated for 40 V absolute maximum. | Use Scenario: Safeguarding analog output lines (e.g., 4–20 mA, 0–10 V) of pressure/temperature sensors in factory automation systems. IC Role / Device Role / Timing Role: Bidirectional clamping element across signal and return paths to suppress EFT and surge coupling. Use Value: Maintains signal integrity by limiting common-mode transients to <100 V while adding <10 pF capacitance at 0 V bias. |
| Telecom Line Card Surge Protection | Consumer Appliance Motor Drive Protection |
Use Scenario: Secondary-level protection on Ethernet PHY power supplies and auxiliary bias rails in base station line cards. IC Role / Device Role / Timing Role: Standoff-rated TVS placed after primary GDT or MOV stage to refine clamping level. Use Value: Provides precise 58 V standoff with 93.6 V clamping, enabling tighter margin design versus 3.3 V/5 V logic supply rails. | Use Scenario: Suppressing commutation spikes from brushed DC motors in smart home appliances (e.g., vacuum cleaners, blenders). IC Role / Device Role / Timing Role: Parallel-connected TVS across motor terminals to clamp inductive kickback. Use Value: Absorbs 3000 W pulses without degradation, extending lifespan of H-bridge MOSFETs rated for 60 V VDS. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMC3K58CAHM3_A | Same VBR, VWM, VC, and PPPM; differs only in packaging suffix (_A denotes updated tape/reel specification) | Identical electrical performance and AEC-Q101 qualification; compatible with same PCB footprint and thermal layout | Select when sourcing newer revision with updated logistics documentation and reel compliance |
| SMAJ58A | Lower PPPM (400 W), smaller SMA package, unidirectional only, no AEC-Q101 qualification | Suitable for cost-sensitive consumer applications with lower surge threat levels; not automotive-qualified | Choose only for non-automotive designs where 400 W surge capacity suffices and space constraints favor SMA |
Compared with SMC3K58CAHM3/9A, SMC3K58CAHM3_A offers identical protection performance with updated packaging logistics, while SMAJ58A trades significant power handling and qualification for size and cost-making it unsuitable for automotive or industrial surge-critical use cases.
Availability
SMC3K58CAHM3/9A is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor interface protection, telecom line card surge protection, and consumer appliance motor drive protection requiring stable component supply and long-term lifecycle support.
Supply support for SMC3K58CAHM3/9A 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 protection devices with emphasis on reliability, efficiency, and application-specific validation.
The SMC3KxxCA series was developed to deliver high-power, AEC-Q101-qualified TVS protection for 12 V/24 V automotive and harsh-environment industrial systems where robustness against repetitive surge events is critical.
FAQ
What is the breakdown voltage range of SMC3K58CAHM3/9A?
The SMC3K58CAHM3/9A has a specified breakdown voltage (VBR) range of 64.4 V to 71.2 V at 1 mA test current, measured per ANSI/IEEE C62.35. This ±5% tolerance ensures consistent triggering behavior across production lots and supports reliable coordination with downstream overvoltage protection thresholds in automotive ECUs and industrial controllers.
Is SMC3K58CAHM3/9A suitable for automotive applications?
Yes, SMC3K58CAHM3/9A is AEC-Q101 qualified and explicitly rated for automotive use. Its construction meets J-STD-020 MSL Level 1, supports 260 °C reflow, and is validated for temperature cycling, HTRB, and surge endurance-making it appropriate for engine control units, body electronics, and ADAS power domains where transient immunity is mission-critical.
What does the "HM3" suffix indicate in SMC3K58CAHM3/9A?
The "HM3" suffix in SMC3K58CAHM3/9A denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. It distinguishes this grade from commercial "M3" variants and confirms compliance with automotive reliability standards, whisker resistance (JESD 201 Class 2), and UL 497B safety recognition-key for Tier 1 supplier BOM acceptance.
How does SMC3K58CAHM3/9A compare to older SMC3K58CA versions?
SMC3K58CAHM3/9A replaces legacy SMC3K58CA with identical electrical specs but adds AEC-Q101 qualification, halogen-free materials, and enhanced process controls. The "HM3" variant also features improved moisture sensitivity rating (MSL Level 1) and extended temperature cycling performance-critical for modern automotive manufacturing and field reliability requirements.
What is the maximum clamping voltage of SMC3K58CAHM3/9A at rated surge current?
The maximum clamping voltage (VC) of SMC3K58CAHM3/9A is 93.6 V at its rated peak pulse current (IPPM) of 32.1 A, tested with a 10/1000 μs waveform. This value defines the upper limit of voltage imposed on protected circuitry during worst-case surge events and must be verified against the absolute maximum ratings of downstream components such as MOSFETs or LDOs in the SMC3K58CAHM3/9A-protected system.
SMC3K58CAHM3/9A 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):
- 58V
- Voltage - Breakdown (Min):
- 64.4V
- Voltage - Clamping (Max) @ Ipp:
- 93.6V
- Current - Peak Pulse (10/1000µs):
- 32.1A
- Power - Peak Pulse:
- 3000W (3kW)
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
SMC3K58CAHM3/9A FAQ
1.How can I place an order for SMC3K58CAHM3/9A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMC3K58CAHM3/9A 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 SMC3K58CAHM3/9A reliable?
The price and inventory of SMC3K58CAHM3/9A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMC3K58CAHM3/9A is usually 5 days.
3.What payment methods are accepted for SMC3K58CAHM3/9A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMC3K58CAHM3/9A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMC3K58CAHM3/9A?
SMC3K58CAHM3/9A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMC3K58CAHM3/9A 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 SMC3K58CAHM3/9A?
For technical support, including SMC3K58CAHM3/9A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMC3K58CAHM3/9A requirements.
6.How does Aetrix verify that SMC3K58CAHM3/9A is sourced from the original manufacturer or authorized distributors?
All SMC3K58CAHM3/9A 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 SMC3K58CAHM3/9A meets industry standards.
7.What is the process for return or replacement of SMC3K58CAHM3/9A?
All SMC3K58CAHM3/9A units undergo pre-shipment inspection (PSI). If there is an issue with SMC3K58CAHM3/9A, 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 SMC3K58CAHM3/9A part is unused and in its original packaging.
Return procedure for SMC3K58CAHM3/9A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMC3K58CAHM3/9A Tags
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