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Taiwan Semiconductor Corporation SMCJ10
- Part No.:
- SMCJ10
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ10.pdf
- Description:
- 1500W, 12.4V, 10%, UNIDIRECTIONA
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
SMCJ10 from Taiwan Semiconductor is a unidirectional 1500W surface-mount transient voltage suppressor (TVS) in DO-214AB (SMC) package, with 11.1V minimum breakdown voltage (VBR), 10V working stand-off voltage (VWM), and 18.8V maximum clamping voltage (VC) at 83A peak pulse current - designed for automotive load-dump and inductive switching protection in power supply rails.
For engineers reviewing the SMCJ10 datasheet, SMCJ10 pinout, SMCJ10 application, or SMCJ10 equivalent, this page delivers verified electrical parameters, thermal performance data, ISO 7637-2 compliance status, junction-to-case thermal resistance, and bidirectional variant compatibility guidance - all specific to the SMCJ10 unidirectional configuration.
Technical Context
The SMCJ10 operates as a unidirectional avalanche diode, leveraging glass-passivated silicon junction technology to achieve sub-1.0ps response time from 0 V to VBR min. Its clamping behavior conforms to IEC 61000-4-5 and meets ISO 7637-2 Pulse 1/2a/2b/3a/3b waveforms for automotive electronics.
With a 10°C/W junction-to-case thermal resistance (RθJC) and 55°C/W junction-to-ambient rating (RθJA), the SMCJ10 supports sustained 5W steady-state dissipation at 25°C ambient and handles 200A non-repetitive forward surge (IFSM) per 8.3ms half-sine waveform - critical for protecting downstream DC-DC converters and microcontroller power inputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - Maximum continuous reverse operating voltage before leakage exceeds 5 µA; defines safe DC rail margin for 12V automotive systems. |
| VBR (min/max) | 11.1 V / 13.6 V @ 1 mA - Confirmed avalanche onset range; ensures reliable triggering above nominal system voltage. |
| VC @ IPPM | 18.8 V @ 83 A - Clamped voltage during 10/1000µs surge; limits stress on 20V-rated MOSFETs and LDOs. |
| PPK | 1500 W - Peak pulse power handling per single 10/1000µs transient; sufficient for ISO 7637-2 Pulse 5a (load dump). |
| IR @ VWM | <5 µA - Reverse leakage at stand-off voltage; minimizes quiescent current loss in always-on battery circuits. |
| TJ max | +150 °C - Maximum junction temperature; enables operation in under-hood environments with minimal derating. |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, matte tin-plated leads, polarity indicated by cathode band. Weight: 0.210 g. Meets UL 94V-0 flammability and JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or low-impedance return path; completes clamping loop during positive transients. |
| Cathode | High-side surge input terminal | Connected to protected line (e.g., 12V rail); avalanche conduction initiates here during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable VBR tolerance and long-term reliability under thermal cycling and humidity exposure. |
| Sub-1.0 ps response time | Clamps EFT bursts before sensitive logic or analog circuitry experiences voltage overshoot beyond rated limits. |
| ISO 7637-2 compliance | Validated against Pulse 1 (inductive switch-off), Pulse 2a/2b (battery disconnect), and Pulse 3a/3b (wiring harness noise). |
| Moisture sensitivity level 1 | Allows unlimited floor life before reflow; eliminates bake requirements and simplifies SMT line integration. |
Applications
| Automotive Power Rail Protection | Industrial PLC Input Protection |
|---|---|
Use Scenario: 12V battery-fed ECUs exposed to load-dump transients up to 40V during alternator regulation failure. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and DC-DC converter input to clamp surges below 20V. Use Value: Limits VC to 18.8V at 83A, preventing damage to 20V-input buck controllers and enabling compliance with ISO 16750-2. | Use Scenario: Digital input modules receiving 24V DC signals from field sensors in factory automation cabinets. IC Role / Device Role / Timing Role: Standoff protection on dry-contact or PNP transistor outputs subject to inductive kickback from solenoid drivers. Use Value: Withstands 200A IFSM and clamps to ≤18.8V, preserving optocoupler CTR and microcontroller GPIO integrity during relay coil de-energization. |
| LED Driver Overvoltage Suppression | USB-C Power Delivery Line Protection |
Use Scenario: Constant-current LED drivers powered from 12V vehicle systems where PWM dimming induces high-frequency ringing. IC Role / Device Role / Timing Role: Parallel-connected TVS across driver input capacitor to absorb repetitive 100ns–1µs transients from MOSFET switching. Use Value: Sub-1.0ps response captures fast edges before they propagate into current-sense amplifiers, reducing false fault triggers. | Use Scenario: USB-C port power path in portable medical devices requiring robust 5–20V PD line protection against hot-plug ESD and cable discharge events. IC Role / Device Role / Timing Role: Primary clamping device on VBUS line upstream of buck-boost controller and load switch. Use Value: 10V VWM allows full 5V–20V PD negotiation range while clamping 8/20µs surges to 18.8V - within USB-IF VBUS tolerance limits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ10A | 600W peak power, SMA package, 10.0–11.1V VBR, 17.0V VC @ 35A | Limited to lower-energy transients (e.g., IEC 61000-4-2 ESD only); not rated for ISO 7637-2 Pulse 5a. | Select when board space is constrained and surge energy remains below 100mJ. |
| SMCJ10A | Same DO-214AB package, tighter VBR tolerance (11.1–12.3V), 17.0V VC @ 92A, 5.0V forward voltage | Improved clamping consistency for precision rail protection; identical footprint and thermal profile. | Preferred for new designs requiring reduced VC variation and guaranteed <5µA leakage at 10V. |
Compared with SMCJ10, SMAJ10A offers smaller size but lower surge capacity, while SMCJ10A provides tighter VBR control and lower clamping voltage - both retain DO-214AB compatibility but differ in energy handling and statistical parameter distribution.
Availability
SMCJ10 is available at Aetrix Electronics and suitable for automotive electronics, industrial PLCs, LED lighting systems, and USB-C power delivery designs requiring stable component supply and ISO 7637-2 compliance.
Supply support for SMCJ10 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 analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, specializing in TVS diodes, rectifiers, and power MOSFETs since 1979.
The SMCJ series belongs to TSC's high-power transient suppression product line, engineered specifically for automotive-grade surge immunity and industrial equipment durability under harsh electromagnetic environments.
FAQ
What is the forward voltage (VF) of the SMCJ10?
The SMCJ10 has a forward voltage of 3.5 V at 100 A forward surge current, consistent with the SMCJ5.0–SMCJ90 family grouping. This value is specified in the Absolute Maximum Ratings table and applies only during unidirectional conduction events such as inductive kickback. The SMCJ10 does not conduct continuously in forward bias during normal operation.
Is the SMCJ10 RoHS and halogen-free compliant?
Yes, the SMCJ10 is RoHS compliant and halogen-free per IEC 61249-2-21. These compliance statements are explicitly confirmed in the FEATURES section of the official Taiwan Semiconductor datasheet (Version S2104). The molding compound meets UL 94V-0, and terminals are matte tin plated per J-STD-002 solderability standards.
Does the SMCJ10 meet ISO 7637-2 for automotive applications?
Yes, the SMCJ10 meets ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b test requirements as stated in the FEATURES section. It is validated for use in automotive electronic control units, body control modules, and infotainment systems where transient immunity to battery disconnection, load dump, and wiring harness noise is mandatory.
What is the marking code for the SMCJ10?
The marking code for the SMCJ10 is GDW, as listed in the Electrical Specifications table on page 2 of the Taiwan Semiconductor datasheet (Version S2104). This two-character code appears adjacent to the cathode band on the DO-214AB package body and is used for visual identification and traceability during assembly and inspection.
Can the SMCJ10 be used in bidirectional configurations?
No, the SMCJ10 is unidirectional only. For bidirectional operation, select the SMCJ10C or SMCJ10CA variant, which include symmetrical breakdown characteristics in both polarities. The SMCJ10 lacks internal back-to-back diode structure and will not clamp negative transients - using it in reverse-biased AC or bipolar signal paths risks permanent failure.
SMCJ10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-214AB, SMC
- Series:
- SMCJ
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 10V
- Voltage - Breakdown (Min):
- 11.1V
- Voltage - Clamping (Max) @ Ipp:
- 18.8V
- Current - Peak Pulse (10/1000µs):
- 83A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
SMCJ10 FAQ
1.How can I place an order for SMCJ10 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ10 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 SMCJ10 reliable?
The price and inventory of SMCJ10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ10 is usually 5 days.
3.What payment methods are accepted for SMCJ10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ10?
SMCJ10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ10 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 SMCJ10?
For technical support, including SMCJ10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ10 requirements.
6.How does Aetrix verify that SMCJ10 is sourced from the original manufacturer or authorized distributors?
All SMCJ10 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 SMCJ10 meets industry standards.
7.What is the process for return or replacement of SMCJ10?
All SMCJ10 units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ10, 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 SMCJ10 part is unused and in its original packaging.
Return procedure for SMCJ10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ10 Tags
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