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Vishay General Semiconductor - Diodes Division SMCJ58CAHM3/I
- Part No.:
- SMCJ58CAHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ58CAHM3/I.pdf
- Description:
- TVS DIODE 58VWM 93.6VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,492
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Product details
Overview
SMCJ58CAHM3/I from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for robust overvoltage protection of sensitive electronics. It features a 58 V standoff voltage (VWM), 64.4–71.2 V breakdown range (VBR at 1 mA), 93.6 V maximum clamping voltage (VC) at 16 A peak pulse current, and 1500 W peak pulse power rating with 10/1000 µs waveform.
For engineers reviewing the SMCJ58CAHM3/I datasheet, SMCJ58CAHM3/I pinout, SMCJ58CAHM3/I application, or SMCJ58CAHM3/I equivalent, this device serves as a halogen-free, RoHS-compliant, AEC-Q101 qualified TVS for automotive-grade surge suppression on power rails and signal lines where bidirectional clamping and low leakage (<1 µA at VWM) are required.
Technical Context
The SMCJ58CAHM3/I operates as a silicon avalanche diode with symmetrical bidirectional conduction-no polarity marking-enabling identical clamping behavior in both directions. Its glass-passivated junction ensures stable breakdown characteristics and fast response time (<1 ns), while its low incremental surge resistance supports effective energy diversion during ESD and lightning-induced transients.
Thermally, it exhibits RθJA = 75 °C/W (typ.) and RθJL = 15 °C/W (typ.), enabling reliable operation up to TJ = +150 °C. The device is rated for non-repetitive 10/1000 µs surges up to 16 A and meets J-STD-020 MSL level 1 (peak reflow ≤260 °C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 58 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 64.4 V / 71.2 V at 1 mA - Ensures predictable turn-on across production lot and temperature |
| VC @ IPPM | 93.6 V at 16 A - Limits downstream voltage stress during 1500 W transient events |
| ID @ VWM | <1 µA - Minimizes standby power loss and avoids false triggering in high-impedance circuits |
| PPPM | 1500 W - Handles severe industrial or automotive load-dump and ISO 7637-2 pulse 5a/b surges |
| TJ Range | −55 °C to +150 °C - Supports under-hood automotive and industrial ambient conditions |
| Package | SMC (DO-214AB) - Surface-mount footprint compatible with automated assembly; 8.0 mm × 8.0 mm copper pad thermal design |
Pinout & Package
SMCJ58CAHM3/I uses the standard SMC (DO-214AB) package: a surface-mount, molded plastic case with two coplanar matte tin-plated terminals. No polarity marking is present due to bidirectional symmetry.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional avalanche junction | Either terminal functions identically as input/output-no orientation required during placement |
| Terminal 1 / Terminal 2 | Surge current path | Both leads conduct equal peak pulse current (IPPM = 16 A) and share thermal dissipation via PCB copper pads |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and ADAS sensor interfaces |
| Halogen-free & RoHS-compliant | Meets global environmental compliance requirements without compromising surge performance |
| Low clamping ratio (VC/VBR ≈ 1.4) | Minimizes protected circuit voltage overshoot during fast transients |
| MSL Level 1 (260 °C peak) | Enables standard lead-free reflow soldering without pre-baking or special handling |
| UL 94 V-0 molding compound | Provides flame-retardant housing suitable for safety-critical industrial and transportation systems |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V supply inputs in body control modules against load dump and jump-start transients per ISO 7637-2. IC Role / Device Role / Timing Role: Bidirectional TVS placed directly at connector entry point to clamp surges before reaching DC/DC converters and microcontrollers. Use Value: Withstands 1500 W pulses and maintains <1 µA leakage at 58 V, ensuring no impact on sleep-mode current budget. | Use Scenario: Shielding analog output lines (e.g., 4–20 mA current loops) in factory automation sensors from ESD and inductive switching noise. IC Role / Device Role / Timing Role: Low-capacitance bidirectional clamp across signal and return paths to suppress common-mode transients without distorting low-bandwidth signals. Use Value: Clamps to 93.6 V within nanoseconds, preventing op-amp saturation and ADC overrange errors during field wiring faults. |
| Telecom Line Interface Protection | Consumer Power Adapter Input Protection |
Use Scenario: Safeguarding Ethernet PHY power pins (e.g., PoE midspan injectors) against lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Primary-level TVS on 48 V bias rail, coordinated with secondary GDT or polymer PTC for staged protection. Use Value: 1500 W rating and 93.6 V clamping enable compliance with IEC 61000-4-5 Level 4 (4 kV) when properly decoupled. | Use Scenario: Input-stage surge suppression in universal AC/DC adapters subjected to mains-borne transients (IEC 61000-4-4/5). IC Role / Device Role / Timing Role: Secondary-side TVS after bridge rectifier, protecting primary controller ICs from reflected line surges. Use Value: Halogen-free SMC package allows compact layout near high-voltage nodes while meeting UL 94 V-0 flammability for end-product certification. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ58CAHE3/A | Same VWM, VBR, VC; lower PPPM = 600 W; SMB (DO-214AA) package (smaller footprint, higher RθJA) | Lower power handling limits use to sub-600 W transients; less suitable for automotive load dump | Select when board space is constrained and surge threat level is limited to IEC 61000-4-2 ESD only |
| 1.5KE58CA | Same electrical specs but axial-leaded DO-201AD package; higher RθJA; not surface-mountable | Requires through-hole assembly; incompatible with automated SMT lines and high-density layouts | Select only for legacy through-hole designs or prototyping where rework flexibility outweighs production efficiency |
Compared with SMBJ58CAHE3/A and 1.5KE58CA, the SMCJ58CAHM3/I delivers optimal balance of 1500 W surge capacity, AEC-Q101 qualification, halogen-free compliance, and SMT manufacturability-making it the preferred choice for volume automotive and industrial power rail protection.
Availability
SMCJ58CAHM3/I is available at Aetrix Electronics and suitable for automotive ECUs, industrial PLC I/O modules, telecom power supplies, and consumer adapter designs requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMCJ58CAHM3/I 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability, efficiency, and application-specific optimization.
The SMCJ series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-energy transient suppression in harsh environments-including automotive, industrial, and telecom infrastructure-where consistent clamping performance and AEC-Q101 validation are mandatory.
FAQ
What is the clamping voltage of SMCJ58CAHM3/I at its rated peak pulse current?
The SMCJ58CAHM3/I has a maximum clamping voltage (VC) of 93.6 V when subjected to its rated 16 A peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value is guaranteed across the full operating temperature range and ensures downstream circuitry remains below safe voltage thresholds during surge events. The clamping performance is validated per ANSI/IEEE C62.35 and documented in Vishay's datasheet revision 09-Jan-2024 (Document Number: 88394).
Is SMCJ58CAHM3/I suitable for automotive applications?
Yes, SMCJ58CAHM3/I is AEC-Q101 qualified and manufactured with halogen-free, RoHS-compliant materials-explicitly designated for automotive use via the "HM3" suffix. It meets critical requirements for under-hood environments, including operating junction temperature up to +150 °C, MSL Level 1 reflow compatibility, and robust surge immunity per ISO 7637-2. The SMCJ58CAHM3/I is commonly deployed in body control modules, infotainment power supplies, and ADAS sensor interfaces.
How does the bidirectional configuration of SMCJ58CAHM3/I affect PCB layout?
The SMCJ58CAHM3/I has no polarity marking and identical electrical behavior in both directions, eliminating orientation constraints during placement. This simplifies PCB layout-no silkscreen polarity indicator is needed, and routing symmetry is optional. Engineers can place the SMCJ58CAHM3/I across any two nodes requiring bidirectional overvoltage protection (e.g., differential signal pairs or ungrounded power rails) without concern for anode/cathode assignment.
What is the maximum leakage current of SMCJ58CAHM3/I at its standoff voltage?
The SMCJ58CAHM3/I exhibits a maximum reverse leakage current (ID) of 1 µA at its 58 V standoff voltage (VWM) and 25 °C ambient temperature. This ultra-low leakage preserves system efficiency in battery-powered or low-power standby modes and prevents false triggering in high-impedance sensing circuits. Leakage remains well below 10 µA across the full −55 °C to +150 °C junction temperature range.
Does SMCJ58CAHM3/I require external heat sinking?
No, the SMCJ58CAHM3/I is designed for PCB-based thermal management: its RθJA of 75 °C/W assumes mounting on 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal. With a 6.5 W steady-state power dissipation rating, typical applications rely solely on adequate PCB copper area-not external heatsinks-to maintain safe junction temperatures. For repetitive surge duty cycles, thermal simulation using the published RθJL = 15 °C/W is recommended to verify margin.
SMCJ58CAHM3/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:
- Discontinued at Digi-Key
- 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):
- 16A
- Power - Peak Pulse:
- 1500W (1.5kW)
- 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)
SMCJ58CAHM3/I FAQ
1.How can I place an order for SMCJ58CAHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ58CAHM3/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 SMCJ58CAHM3/I reliable?
The price and inventory of SMCJ58CAHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ58CAHM3/I is usually 5 days.
3.What payment methods are accepted for SMCJ58CAHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ58CAHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ58CAHM3/I?
SMCJ58CAHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ58CAHM3/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 SMCJ58CAHM3/I?
For technical support, including SMCJ58CAHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ58CAHM3/I requirements.
6.How does Aetrix verify that SMCJ58CAHM3/I is sourced from the original manufacturer or authorized distributors?
All SMCJ58CAHM3/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 SMCJ58CAHM3/I meets industry standards.
7.What is the process for return or replacement of SMCJ58CAHM3/I?
All SMCJ58CAHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ58CAHM3/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 SMCJ58CAHM3/I part is unused and in its original packaging.
Return procedure for SMCJ58CAHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ58CAHM3/I Tags
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