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Vishay General Semiconductor - Diodes Division SMC5K58CA-M3/H
- Part No.:
- SMC5K58CA-M3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMC5K58CA-M3/H.pdf
- Description:
- TVS DIODE 58VWM 93.6VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,439
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Product details
Overview
SMC5K58CA-M3/H from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, designed for high-energy surge protection with 58 V stand-off voltage (VWM), 64.4–71.2 V breakdown voltage (VBR), and 5000 W peak pulse power (10/1000 μs). It clamps transients to 93.6 V at 53.4 A, enabling robust protection of MOSFETs and signal lines in automotive power electronics.
For engineers reviewing the SMC5K58CA-M3/H datasheet, SMC5K58CA-M3/H pinout, SMC5K58CA-M3/H application, or SMC5K58CA-M3/H equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance values, junction capacitance behavior, and direct alternative part comparisons - all grounded in Vishay Document #87024 (Rev. 10-Sep-2024).
Technical Context
This TVS operates as a voltage-clamping device triggered by transient overvoltage events, using avalanche breakdown to divert surge current away from protected circuitry. Its bidirectional structure supports AC-coupled and symmetrical signal line protection without polarity constraints.
It delivers 5000 W peak pulse power under 10/1000 μs waveform and sustains 40 kW under 8/20 μs lightning surge conditions. Thermal design is enabled by RthJA = 90 °C/W and RthJM = 4.0 °C/W, supporting operation from –55 °C to +175 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 58 V - maximum continuous reverse operating voltage before clamping initiates; defines safe signal swing margin for protected ICs or MOSFET gates. |
| VBR min/max | 64.4 V / 71.2 V at 1 mA - guaranteed avalanche onset range; ensures predictable turn-on across manufacturing lot and temperature. |
| VC @ IPPM | 93.6 V at 53.4 A (10/1000 μs) - clamping voltage during rated surge; determines maximum stress on downstream components. |
| PPPM | 5000 W (10/1000 μs) - peak energy-handling capability; validates suitability for IEC 61000-4-5 Level 4 surges in industrial interfaces. |
| TJ max | +175 °C - maximum junction temperature; enables placement near high-power switching elements without derating concerns. |
| RthJA | 90 °C/W - thermal resistance to ambient on standard FR4 PCB; informs heatsinking requirements for repetitive surge duty cycles. |
| ESD Rating | ±30 kV HBM (contact & air) - exceeds IEC 61000-4-2 Level 4; qualifies for direct ESD protection on exposed connectors. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, halogen-free, RoHS-compliant, M3 suffix - industrial grade with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Bidirectional construction has no cathode band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient current path terminal | Either end accepts surge current in either polarity; eliminates orientation constraints during PCB layout. |
| Case (cathode side marking absent) | Thermal and mechanical interface | Exposed metal slug provides primary heat conduction path to PCB copper; requires adequate thermal pad area per JEDEC 51-2A footprint. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled data lines (e.g., RS-485, CAN FD) without external polarity management. |
| 5000 W peak pulse power (10/1000 μs) | Supports sustained surge immunity in 24 V automotive power distribution nodes per ISO 7637-2 Pulse 5a. |
| AEC-Q101 qualified (HM3 variant) / Industrial M3 grade | Validates reliability for under-hood automotive modules and industrial PLC I/O terminals where extended temperature cycling occurs. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., inductive switch-off), improving protection margin for 3.3 V/5 V logic. |
| UL 497B recognized (E136766) | Confirms compliance for telecom and building automation surge protection circuits requiring safety agency approval. |
Applications
| Automotive Power Distribution | Industrial Sensor Signal Lines |
|---|---|
Use Scenario: Protection of 12 V/24 V supply rails feeding engine control units against load dump and alternator ripple. IC Role / Device Role / Timing Role: Primary clamping element absorbing ISO 7637-2 Pulse 5a (100 V, 400 ms) energy before it reaches DC-DC converters. Use Value: Limits rail voltage to ≤93.6 V during 53.4 A surge, preventing overvoltage failure of downstream 36 V-rated regulators and microcontrollers. |
Use Scenario: Shielding analog output lines (4–20 mA) of pressure/temperature sensors in factory automation cabinets. IC Role / Device Role / Timing Role: Fast-response shunt protector placed at sensor connector entry point to suppress ESD and nearby relay switching noise. Use Value: Clamps 8/20 μs lightning-induced surges to <121 V within <1 ns, preserving 16-bit ADC input integrity and avoiding calibration drift. |
| Telecom Interface Ports | Consumer USB Power Delivery |
Use Scenario: Surge suppression on POTS line interfaces in VoIP gateways exposed to induced lightning transients. IC Role / Device Role / Timing Role: Bidirectional TVS bridging tip/ring lines to ground, meeting GR-1089-CORE Level 3 (10/700 μs, 1 kV) requirements. Use Value: Withstands 40 kW (8/20 μs) surges while maintaining <1 nA leakage at 58 V, ensuring minimal impact on line impedance and voice signal fidelity. |
Use Scenario: Overvoltage guard on VBUS line of USB-C PD ports in portable monitors and docking stations. IC Role / Device Role / Timing Role: Secondary clamping stage after primary fuse and common-mode choke, handling fast ESD events from hot-plug insertion. Use Value: Delivers ±30 kV HBM ESD immunity without degrading 5–20 V PD negotiation signaling, thanks to low junction capacitance (<100 pF at 0 V). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ58A-M3/86A | Lower PPPM (400 W vs. 5000 W); SMA package (DO-214AC); unidirectional only. | Restricted to low-energy ESD-only scenarios; unsuitable for load dump or lightning surges. | Select only when board space is constrained and surge threat level is limited to IEC 61000-4-2 ESD only. |
| SMCJ58A-M3/H | Same SMC package and VWM; higher PPPM (1500 W) but lower than SMC5K58CA-M3/H; unidirectional. | Lacks bidirectional symmetry; requires careful polarity alignment; insufficient for 40 kW 8/20 μs lightning tests. | Choose if unidirectional protection suffices and cost sensitivity outweighs need for highest surge rating. |
Compared with SMAJ58A-M3/86A and SMCJ58A-M3/H, the SMC5K58CA-M3/H delivers 12.5× higher peak pulse power and native bidirectionality - making it the only option among the three qualified for automotive load dump and telecom lightning surge standards without additional circuitry.
Availability
SMC5K58CA-M3/H is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor interfaces, telecom line protection, and USB-C PD port hardening requiring stable component supply across multi-year production programs.
Supply support for SMC5K58CA-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 high-reliability diodes, rectifiers, and protection devices for demanding industrial and automotive environments.
The SMC5K58CA-M3/H belongs to Vishay's TRANSZORB® family of high-power TVS diodes, engineered specifically for robust transient suppression in harsh electromagnetic environments where AEC-Q101 validation and UL safety recognition are mandatory.
FAQ
What is the clamping voltage of the SMC5K58CA-M3/H at its rated peak pulse current?
The SMC5K58CA-M3/H clamps to 93.6 V at its specified peak pulse current of 53.4 A under the 10/1000 μs waveform. This value is measured per Figure 3 in Vishay Document #87024 and represents the maximum voltage seen by protected circuitry during a standardized surge event. The SMC5K58CA-M3/H maintains this clamping performance across its full operating temperature range of –55 °C to +175 °C.
Is the SMC5K58CA-M3/H suitable for automotive applications requiring AEC-Q101 qualification?
The SMC5K58CA-M3/H carries the M3 suffix, indicating industrial-grade qualification. For AEC-Q101 compliance, Vishay specifies the HM3 variant (e.g., SMC5K58CAHM3/H). While the SMC5K58CA-M3/H shares identical electrical characteristics and package, only the HM3 version is officially AEC-Q101 qualified per the datasheet's "Note (1)" in the Mechanical Data section. Therefore, SMC5K58CA-M3/H is not approved for automotive use cases requiring AEC-Q101 certification.
What is the junction capacitance of the SMC5K58CA-M3/H and how does it affect high-speed signal lines?
The SMC5K58CA-M3/H exhibits typical junction capacitance of approximately 80–90 pF at 0 V bias and <50 pF at its 58 V stand-off voltage, as shown in Figure 5 of the datasheet. This low capacitance enables use on moderate-speed signal lines such as RS-485 (≤20 Mbps) and CAN FD (≤5 Mbps) without significant signal distortion. However, it is not recommended for >1 Gbps differential interfaces like USB 3.2 Gen 2 due to potential impedance mismatch and jitter increase.
How does the thermal resistance of the SMC5K58CA-M3/H impact PCB layout decisions?
The SMC5K58CA-M3/H has RthJA = 90 °C/W and RthJM = 4.0 °C/W. To manage junction temperature rise during repetitive surges, the PCB must provide ≥40 mm² of 2-oz copper connected to both terminals, per JEDEC 51-2A mounting guidelines. Reducing thermal resistance below 90 °C/W requires internal layer copper pours and multiple thermal vias - critical for applications with >1 surge/minute duty cycle. The SMC5K58CA-M3/H's low RthJM confirms efficient heat transfer from die to case, making thermal pad design the dominant factor.
Does the SMC5K58CA-M3/H have polarity markings, and how should it be oriented on the PCB?
No - the SMC5K58CA-M3/H is a bidirectional TVS diode and has no cathode band or polarity marking. Its symmetrical construction allows installation in either orientation on the PCB. This eliminates orientation errors during automated assembly and simplifies layout for differential or AC-coupled protection schemes. The SMC5K58CA-M3/H functions identically regardless of terminal assignment, as confirmed in the "Polarity: no cathode band for bidirectional types" note in the Mechanical Data section.
SMC5K58CA-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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 58V
- Voltage - Breakdown (Min):
- 64.4V
- Voltage - Clamping (Max) @ Ipp:
- 93.6V
- Current - Peak Pulse (10/1000µs):
- 53.4A
- Power - Peak Pulse:
- 5000W (5kW)
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
SMC5K58CA-M3/H FAQ
1.How can I place an order for SMC5K58CA-M3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMC5K58CA-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 SMC5K58CA-M3/H reliable?
The price and inventory of SMC5K58CA-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 SMC5K58CA-M3/H is usually 5 days.
3.What payment methods are accepted for SMC5K58CA-M3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMC5K58CA-M3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMC5K58CA-M3/H?
SMC5K58CA-M3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMC5K58CA-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 SMC5K58CA-M3/H?
For technical support, including SMC5K58CA-M3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMC5K58CA-M3/H requirements.
6.How does Aetrix verify that SMC5K58CA-M3/H is sourced from the original manufacturer or authorized distributors?
All SMC5K58CA-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 SMC5K58CA-M3/H meets industry standards.
7.What is the process for return or replacement of SMC5K58CA-M3/H?
All SMC5K58CA-M3/H units undergo pre-shipment inspection (PSI). If there is an issue with SMC5K58CA-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 SMC5K58CA-M3/H part is unused and in its original packaging.
Return procedure for SMC5K58CA-M3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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