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Taiwan Semiconductor Corporation SMDJ58CA
- Part No.:
- SMDJ58CA
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMDJ58CA.pdf
- Description:
- TVS DIODE 58VWM 93.6VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,001
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Product details
Overview
SMDJ58CA from Taiwan Semiconductor is a bidirectional 3000W surface-mount transient voltage suppressor (TVS) diode in DO-214AB (SMC) package, with a working stand-off voltage of 58 V, breakdown voltage range 64.4–71.2 V, and clamping voltage of 93.6 V at 32.1 A peak pulse current. It protects telecom and industrial circuits against ESD, lightning surges, and load-switch transients.
For engineers reviewing the SMDJ58CA datasheet, SMDJ58CA pinout, SMDJ58CA application, or SMDJ58CA equivalent, key selection factors include bidirectional surge capability, ISO 7637-2 compliance (Pulse 1/2a/2b/3a/3b), sub-1 ps response time, UL 94V-0 molding compound, and JESD201 Class 2 whisker resistance - all critical for automotive and harsh-environment front-end protection.
Technical Context
The SMDJ58CA operates as a bidirectional avalanche diode, symmetrically clamping voltage transients in both polarities without requiring polarity orientation during PCB placement. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1 µA at 58 V).
Designed for high-energy pulse suppression, it delivers 3000 W peak pulse power (10/1000 µs waveform), supports 300 A non-repetitive forward surge (8.3 ms half-sine), and maintains operation across –55 °C to +175 °C junction temperature range with 75 °C/W junction-to-ambient thermal resistance.
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 - Breakdown initiates within this range at 1 mA test current |
| VC @ IPPM | 93.6 V - Clamped voltage seen by protected circuit at 32.1 A peak pulse current |
| PPK | 3000 W - Peak pulse power handling per 10/1000 µs transient waveform |
| IR @ VWM | <1 µA - Reverse leakage ensures minimal standby power loss and signal integrity |
| TJ max | +175 °C - Enables reliable operation in under-hood or industrial enclosure environments |
| RθJA | 75 °C/W - Thermal performance defines required PCB copper area for sustained power dissipation |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, bidirectional device with cathode band omitted (symmetrical terminals). Matte tin-plated leads, RoHS and halogen-free compliant, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional surge path | No polarity marking required; either terminal serves as input/output for transient conduction |
| Case (cathode band absent) | Thermal and mechanical anchor | DO-214AB body provides mechanical stability and aids heat transfer to PCB copper |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures repeatable breakdown voltage and long-term reliability under repeated surge stress |
| ISO 7637-2 compliance | Validated for automotive load-dump and switching transient immunity (Pulse 1/2a/2b/3a/3b) |
| Sub-1 ps response time | Clamps transients before sensitive ICs experience overvoltage damage |
| UL 94V-0 molding compound | Prevents flame propagation in safety-critical industrial and transportation systems |
| JESD201 Class 2 whisker resistance | Eliminates tin whisker growth risk in high-reliability long-life deployments |
Applications
| Automotive Power Line Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus nodes and sensor inputs on 12 V/24 V vehicle power rails from load dump and alternator transients. IC Role / Device Role / Timing Role: Bidirectional TVS placed at connector entry point to shunt surge energy before reaching transceiver or microcontroller. Use Value: Withstands 3000 W pulses and clamps to 93.6 V, keeping downstream 5 V/3.3 V logic within safe operating area per ISO 7637-2. | Use Scenario: Shielding analog and digital I/O channels of programmable logic controllers from field-induced surges and ESD events. IC Role / Device Role / Timing Role: Front-line transient absorber on terminal blocks and signal conditioning modules. Use Value: Sub-1 ps response and 93.6 V clamping prevent latch-up or permanent damage to precision ADCs and isolators. |
| Telecom Base Station DC Feeds | Renewable Energy Inverter Control Boards |
Use Scenario: Safeguarding -48 V DC power inputs and Ethernet PHY interfaces in outdoor telecom cabinets exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Bidirectional clamping element on primary DC input and secondary data lines. Use Value: 3000 W rating and 93.6 V clamping ensure survivability of multi-kA lightning surges per IEC 61000-4-5. | Use Scenario: Protecting gate drivers and MCU supply rails in solar inverter control boards subjected to grid-switching transients. IC Role / Device Role / Timing Role: Secondary-level TVS on isolated DC-DC converter outputs and microcontroller VDD lines. Use Value: 175 °C max junction temperature and robust thermal resistance support operation in sealed, high-ambient enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SAC58CA (Littelfuse) | Same 58 V VWM, 93.6 V VC, but rated for 2500 W PPK and uses DO-214AB with slightly lower IPPM (29.5 A) | Limited to lower-energy transients; not validated for ISO 7637-2 Pulse 5a | Select when cost sensitivity outweighs need for full 3000 W margin or automotive qualification |
| 1.5KE58CA (ON Semiconductor) | Through-hole TO-218 package, same VWM/VC, but higher RθJA (100 °C/W) and no JESD201 whisker rating | Requires manual assembly; unsuitable for automated SMT lines or high-reliability whisker-sensitive designs | Choose only for legacy through-hole designs where board real estate allows larger footprint |
Compared with SAC58CA and 1.5KE58CA, the SMDJ58CA offers superior surge robustness (3000 W vs. 2500 W/1500 W), SMT compatibility, ISO 7637-2 validation, and whisker-resistant terminations - making it the preferred choice for automotive-grade and high-volume industrial PCBs.
Availability
SMDJ58CA is available at Aetrix Electronics and suitable for automotive power line protection, industrial PLC I/O protection, telecom base station DC feeds, and renewable energy inverter control boards requiring stable component supply and full ISO 7637-2 compliance.
Supply support for SMDJ58CA 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
Taiwan Semiconductor Corporation (TSC) is a vertically integrated semiconductor manufacturer specializing in discrete power devices, TVS diodes, rectifiers, and MOSFETs for industrial, automotive, and consumer markets.
The SMDJ58CA belongs to TSC's SMDJxxCA family of high-power bidirectional TVS diodes engineered specifically for ruggedized front-end surge protection in automotive and industrial equipment subject to ISO 7637-2 and IEC 61000-4-5 threats.
FAQ
What is the clamping voltage of the SMDJ58CA under maximum rated surge current?
The SMDJ58CA clamps to 93.6 V at its specified peak pulse current of 32.1 A (10/1000 µs waveform). This value is measured and guaranteed per the datasheet's electrical specifications table and defines the maximum voltage imposed on protected circuitry during a worst-case transient event. The clamping performance remains stable across its operating temperature range due to the glass-passivated junction structure.
Is the SMDJ58CA suitable for automotive applications requiring ISO 7637-2 compliance?
Yes, the SMDJ58CA is explicitly tested and rated to meet ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b requirements. Its 3000 W peak power rating, fast sub-1 ps response, and bidirectional symmetry make it appropriate for protecting ECUs, sensors, and communication interfaces on 12 V and 24 V vehicle networks. No derating is needed for standard automotive ambient conditions.
Does the SMDJ58CA have polarity markings, and how is it mounted on PCB?
No, the SMDJ58CA is a bidirectional TVS diode and has no cathode band or polarity marking. It is symmetrically constructed in the DO-214AB (SMC) package, allowing placement in either orientation on the PCB. This simplifies automated pick-and-place and eliminates orientation-related assembly errors in high-volume manufacturing.
What is the maximum junction temperature and thermal resistance of the SMDJ58CA?
The SMDJ58CA has a maximum junction temperature (TJ) of +175 °C and a junction-to-ambient thermal resistance (RθJA) of 75 °C/W under standard JEDEC test conditions. These values define its thermal limits and guide PCB layout - for example, recommending ≥100 mm² of 2 oz copper pour connected to both terminals to sustain repetitive surge duty cycles without exceeding TJ.
How does the SMDJ58CA differ from unidirectional SMDJ58A in practical design use?
The SMDJ58CA is bidirectional and clamps transients of either polarity, while the SMDJ58A is unidirectional and requires correct anode/cathode orientation relative to DC bias. In AC-coupled or floating signal lines (e.g., CAN bus, Ethernet PHY), SMDJ58CA eliminates polarity concerns and avoids misplacement risk. Its VF is not specified since it conducts symmetrically - unlike SMDJ58A, which has VF = 3.5 V at 100 A forward current.
SMDJ58CA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-214AB, SMC
- Series:
- SMDJ
- 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:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
SMDJ58CA FAQ
1.How can I place an order for SMDJ58CA through Aetrix?
Please submit a Request for Quotation (RFQ) for SMDJ58CA 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 SMDJ58CA reliable?
The price and inventory of SMDJ58CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMDJ58CA is usually 5 days.
3.What payment methods are accepted for SMDJ58CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMDJ58CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMDJ58CA?
SMDJ58CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMDJ58CA 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 SMDJ58CA?
For technical support, including SMDJ58CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMDJ58CA requirements.
6.How does Aetrix verify that SMDJ58CA is sourced from the original manufacturer or authorized distributors?
All SMDJ58CA 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 SMDJ58CA meets industry standards.
7.What is the process for return or replacement of SMDJ58CA?
All SMDJ58CA units undergo pre-shipment inspection (PSI). If there is an issue with SMDJ58CA, 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 SMDJ58CA part is unused and in its original packaging.
Return procedure for SMDJ58CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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