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Vishay General Semiconductor - Diodes Division SMCJ58CHE3/9AT
- Part No.:
- SMCJ58CHE3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ58CHE3/9AT.pdf
- Description:
- TVS DIODE 58VWM 103VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,469
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Product details
Overview
SMCJ58CHE3/9AT from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in DO-214AB (SMCJ) package, designed for robust overvoltage protection of DC power rails and signal lines. It features a 58 V standoff voltage (VWM), 64.4–71.2 V breakdown range (VBR), 93.6 V clamping voltage (VC) at 16 A peak pulse current, 1500 W peak pulse power rating (10/1000 µs), and AEC-Q101 qualification for automotive-grade reliability.
For engineers reviewing the SMCJ58CHE3/9AT datasheet, SMCJ58CHE3/9AT pinout, SMCJ58CHE3/9AT application, or SMCJ58CHE3/9AT equivalent, this device is selected for high-energy surge suppression in automotive power modules, industrial motor drives, and telecom DC input stages where stable clamping performance and JEDEC-compliant thermal derating are critical.
Technical Context
This unidirectional TVS diode operates as a voltage-clamped shunt protector: under normal conditions it presents high impedance (<1 µA leakage at 58 V), then rapidly avalanches to limit transient overvoltages above its breakdown threshold. Its glass-passivated junction ensures stable VBR tolerance (±5%) and low incremental surge resistance, enabling consistent clamping across repeated 10/1000 µs surges up to 1500 W.
Thermally, it is rated for TJ = –55 °C to +150 °C, with RθJA = 75 °C/W (on 8 mm × 8 mm copper pads) and RθJL = 15 °C/W, supporting reliable operation in convection-cooled automotive ECUs and industrial power supplies without active heatsinking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 58 V - Maximum continuous reverse operating voltage before avalanche onset; defines safe DC rail margin for 48 V systems. |
| VBR @ IT = 1 mA | 64.4–71.2 V - Breakdown voltage range ensuring tight tolerance for predictable turn-on during transients. |
| VC @ IPPM = 16 A | 93.6 V - Clamped voltage during 10/1000 µs surge; limits downstream IC stress to <94 V under worst-case 1500 W event. |
| PPPM | 1500 W - Peak pulse power handling per single transient; supports IEC 61000-4-5 Level 4 (4 kV) surge immunity. |
| IPPM | 16 A - Peak pulse current corresponding to VC; enables direct calculation of series impedance needed for current limiting. |
| TJ max. | +150 °C - Maximum junction temperature; allows operation in under-hood automotive environments without derating. |
| AEC-Q101 | Qualified - Validated for automotive electronics per stress test requirements including HTOL, TC, and HAST. |
Pinout & Package
Package: DO-214AB (SMCJ), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Polarity indicated by cathode band on body end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction | Connected to protected line's lower-potential side (e.g., GND or return path); not used in standard unidirectional TVS configuration. |
| Cathode | Current exit terminal during reverse avalanche | Connected to protected line (e.g., 48 V rail); conducts surge current to ground when VIN exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive under-hood use with HTOL, temperature cycling, and humidity testing per JESD22 standards. |
| Glass-passivated junction | Ensures stable VBR over lifetime and immunity to moisture-induced parameter drift in harsh environments. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., ISO 7637-2 pulse 1/2a), improving clamping fidelity. |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without preconditioning or special handling. |
| RoHS-compliant HE3 suffix | Meets JESD201 Class 2 whisker resistance, eliminating tin whisker risk in long-life automotive applications. |
Applications
| Automotive Power Distribution Module | Industrial PLC DC Input Protection |
|---|---|
|
Use Scenario: Protecting 48 V battery-fed power distribution nodes against load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Shunt clamping element placed between 48 V rail and chassis ground, responding within <1 ns to clamp spikes to ≤93.6 V. Use Value: Prevents damage to downstream PMICs and microcontrollers by limiting transient energy dissipation to 1500 W per event without degradation. |
Use Scenario: Safeguarding 24 V DC inputs of programmable logic controllers exposed to inductive switching noise from solenoid valves. IC Role / Device Role / Timing Role: Standoff-mode protector that remains non-conductive below 58 V but clamps >64.4 V transients to protect input regulators and isolation barriers. Use Value: Enables compliance with IEC 61000-4-4 (EFT) and IEC 61000-4-5 (surge) without additional filtering components. |
| Telecom DC Power Entry | Motor Drive DC Bus Protection |
|
Use Scenario: Front-end protection of telecom base station power supplies receiving -48 V DC from central office rectifiers. IC Role / Device Role / Timing Role: Unidirectional TVS connected anode-to-ground, clamping positive-going surges on the negative rail while blocking reverse leakage. Use Value: Maintains <1 µA leakage at -48 V, preserving system efficiency while surviving repeated 1 kV/0.5 Ω surge events. |
Use Scenario: Overvoltage suppression on the DC bus of 3-phase inverters subject to regenerative braking spikes. IC Role / Device Role / Timing Role: Parallel-connected clamping device across bus capacitors, absorbing stored inductive energy during rapid deceleration. Use Value: Withstands 200 A non-repetitive forward surge (IFSM) and dissipates 1500 W pulses without thermal runaway. |
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-E3/61T | Lower PPPM (400 W), smaller SMA package (DO-214AC), higher VC (93.6 V same, but lower IPPM = 4.3 A). | Suitable only for low-energy transients (e.g., ESD, low-level EFT); insufficient for IEC 61000-4-5 Level 3+. | Select SMCJ58CHE3/9AT when 1500 W surge handling and AEC-Q101 qualification are required. |
| 1.5KE56A | Through-hole TO-218 package, same VWM/VBR range, but higher VC (92 V at 16.3 A), no AEC-Q101 qualification. | Limited to non-automotive industrial use; incompatible with automated SMT assembly. | Choose SMCJ58CHE3/9AT for surface-mount compatibility, automotive qualification, and tighter thermal resistance (RθJL = 15 °C/W vs. ~25 °C/W). |
Compared with SMAJ58A-E3/61T and 1.5KE56A, the SMCJ58CHE3/9AT delivers superior surge energy handling (1500 W vs. 400 W/1500 W), automotive-grade reliability (AEC-Q101), and optimized thermal performance for high-density PCB layouts-making it the preferred choice for mission-critical 48 V systems.
Availability
SMCJ58CHE3/9AT is available at Aetrix Electronics and suitable for automotive power modules, industrial PLCs, telecom DC power entries, and motor drive DC bus protection requiring stable component supply and full traceability.
Supply support for SMCJ58CHE3/9AT 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, MOSFETs, optoelectronics, and passive components for demanding industrial and automotive applications.
The SMCJ series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-power transient suppression in automotive powertrain, ADAS, and industrial control systems where AEC-Q101 compliance and repeatable clamping performance are mandatory.
FAQ
What is the clamping voltage of the SMCJ58CHE3/9AT and how is it measured?
The SMCJ58CHE3/9AT has a maximum clamping voltage (VC) of 93.6 V, measured at a peak pulse current (IPPM) of 16 A using a standardized 10/1000 µs double-exponential waveform. This value reflects the actual voltage seen by downstream circuitry during a worst-case surge event and is guaranteed across the full operating temperature range of –55 °C to +150 °C.
Is the SMCJ58CHE3/9AT suitable for automotive applications?
Yes, the SMCJ58CHE3/9AT is AEC-Q101 qualified and manufactured with HE3 suffix, meeting JESD201 Class 2 whisker resistance requirements. Its DO-214AB package, glass-passivated junction, and guaranteed performance from –55 °C to +150 °C make it appropriate for under-hood and powertrain applications including battery management and ADAS power rails.
How does the SMCJ58CHE3/9AT differ from the standard SMCJ58A-E3/9AT?
The SMCJ58CHE3/9AT uses the HE3 suffix, indicating AEC-Q101 qualification and JESD201 Class 2 whisker resistance, whereas the SMCJ58A-E3/9AT (E3 suffix) is commercial-grade only. Both share identical electrical specs (VWM = 58 V, VC = 93.6 V), but only the SMCJ58CHE3/9AT is certified for automotive use.
What is the thermal resistance of the SMCJ58CHE3/9AT and how does it affect layout?
The SMCJ58CHE3/9AT has a typical junction-to-lead thermal resistance (RθJL) of 15 °C/W and junction-to-ambient (RθJA) of 75 °C/W when mounted on 8 mm × 8 mm copper pads. To maintain safe operation at full 1500 W pulse rating, PCB layout must provide adequate copper area and minimize thermal bottlenecks between the cathode/anode pads and internal ground/power planes.
Can the SMCJ58CHE3/9AT be used in bidirectional configurations?
No-the SMCJ58CHE3/9AT is unidirectional, as indicated by the "A" suffix (not "CA"). For bidirectional protection, Vishay offers the SMCJ58CA variant, which provides symmetrical clamping in both polarities. Using the SMCJ58CHE3/9AT in reverse-biased mode would result in forward conduction and potential failure.
SMCJ58CHE3/9AT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 58V
- Voltage - Breakdown (Min):
- 64.4V
- Voltage - Clamping (Max) @ Ipp:
- 103V
- Current - Peak Pulse (10/1000µs):
- 14.6A
- Power - Peak Pulse:
- 1500W (1.5kW)
- 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)
SMCJ58CHE3/9AT FAQ
1.How can I place an order for SMCJ58CHE3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ58CHE3/9AT 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 SMCJ58CHE3/9AT reliable?
The price and inventory of SMCJ58CHE3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ58CHE3/9AT is usually 5 days.
3.What payment methods are accepted for SMCJ58CHE3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ58CHE3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ58CHE3/9AT?
SMCJ58CHE3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ58CHE3/9AT 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 SMCJ58CHE3/9AT?
For technical support, including SMCJ58CHE3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ58CHE3/9AT requirements.
6.How does Aetrix verify that SMCJ58CHE3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCJ58CHE3/9AT 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 SMCJ58CHE3/9AT meets industry standards.
7.What is the process for return or replacement of SMCJ58CHE3/9AT?
All SMCJ58CHE3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ58CHE3/9AT, 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 SMCJ58CHE3/9AT part is unused and in its original packaging.
Return procedure for SMCJ58CHE3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ58CHE3/9AT Tags
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