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Taiwan Semiconductor Corporation SMCJ13CH
- Part No.:
- SMCJ13CH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ13CH.pdf
- Description:
- 1500W, 16V, 10%, BIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:4,104
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Product details
Overview
SMCJ13CH from Taiwan Semiconductor is a unidirectional 1500W surface-mount transient voltage suppressor (TVS) diode with a 13V working stand-off voltage, 14.4–17.6V breakdown range at 1mA test current, and 23.8V maximum clamping voltage at 66A peak pulse current. It features glass passivated junction, AEC-Q101 qualification, and meets ISO 7637-2 Pulse 1/2a/2b/3a/3b for automotive load-dump and ESD protection in power supply inputs.
For engineers reviewing the SMCJ13CH datasheet, SMCJ13CH pinout, SMCJ13CH application, or SMCJ13CH equivalent, key selection criteria include clamping voltage margin vs. protected IC VMAX, unidirectional polarity marking, DO-214AB thermal performance (RθJC = 10°C/W), and compliance with automotive transients per ISO 7637-2.
Technical Context
The SMCJ13CH operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds its VBR (14.4–17.6V). Its fast response (<1.0ps) enables suppression of ESD and lightning-induced surges before downstream components are damaged. The device uses a single-die DO-214AB package with cathode band polarity marking and matte tin-plated leads.
Thermal design relies on low junction-to-case resistance (10°C/W) and 150°C max junction temperature. It supports 200A non-repetitive forward surge (8.3ms half-sine) and maintains <1μA leakage above 10V - critical for low-power standby circuits where reverse leakage impacts quiescent current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 13 V - Maximum continuous reverse operating voltage before conduction begins; sets upper limit for safe DC bias in protected line. |
| VBR @ IT=1mA | 14.4–17.6 V - Breakdown voltage range defining turn-on threshold; ensures reliable triggering across process variation. |
| VC @ IPPM=66A | 23.8 V - Clamping voltage during 10/1000μs surge; must stay below protected IC's absolute maximum rating. |
| PPK | 1500 W - Peak pulse power handling per 1ms waveform; determines survivability against ISO 7637-2 Pulse 1 (inductive load dump). |
| IR @ VWM | <1 μA - Reverse leakage at 13V; negligible impact on battery-powered circuit standby current. |
| TJ max | +150 °C - Maximum junction temperature; enables operation in under-hood automotive environments. |
| Package | DO-214AB (SMC) - Standardized surface-mount outline with 0.210g mass and UL 94V-0 molding compound. |
Pinout & Package
DO-214AB (SMC) package: molded plastic case with coplanar matte tin-plated leads, cathode band marking for unidirectional polarity, and JESD201 Class 2 whisker resistance. Weight ≈ 0.210 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to system ground or lower-potential rail; carries surge current during clamping. |
| Cathode | Reverse-biased input terminal | Connected to protected line (e.g., 12V supply rail); marked by band; blocks VWM until breakdown. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress requirements. |
| Glass passivated junction | Enhances long-term stability and moisture resistance versus epoxy-passivated alternatives; improves surge lifetime. |
| ISO 7637-2 compliance | Guarantees robustness against real-world automotive transients: Pulse 1 (inductive switch-off), Pulse 2a/2b (load dump), Pulse 3a/3b (capacitive coupling). |
| Fast response time <1.0ps | Clamps ESD events before propagation to sensitive logic; critical for USB, CAN, and sensor interface protection. |
| Moisture sensitivity level 1 | No floor-life limitation or bake requirement before reflow; simplifies SMT assembly and reduces manufacturing cost. |
Applications
| Automotive Power Input Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: 12V battery-fed ECUs exposed to load dump (ISO 7637-2 Pulse 2b) and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between input rail and chassis ground to clamp transients before DC-DC converter input. Use Value: 23.8V clamping ensures protected regulator (e.g., LM2596) remains within its 40V abs max rating while surviving 1500W pulses. | Use Scenario: Digital input modules receiving 24V DC signals from field sensors in factory automation. IC Role / Device Role / Timing Role: Standoff protection on dry-contact or PNP transistor outputs subject to inductive kickback. Use Value: 13V VWM allows full 24V signal swing while clamping >30V spikes; 66A IPPM handles relay coil energy discharge. |
| Telecom Power Supply Input | Consumer Appliance Main Board Protection |
Use Scenario: AC/DC adapter output feeding PoE-powered equipment or base station radios. IC Role / Device Role / Timing Role: Secondary-side TVS on +12V or +48V distribution rail to suppress lightning-induced surges coupled via Ethernet or power lines. Use Value: 1500W peak power rating absorbs 10/1000μs lightning surges per IEC 61000-4-5 Level 4 without degradation. | Use Scenario: Microcontroller-based washing machine control board with motor driver and user interface. IC Role / Device Role / Timing Role: Protection on 5V/3.3V rails feeding MCU GPIOs and display drivers against ESD from touch panels or connector hot-plug. Use Value: Sub-1μA leakage preserves battery backup runtime; fast <1.0ps response prevents latch-up in 3.3V logic during contact discharge. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ13A | Same DO-214AC package; 24.4V clamping at 62.7A; slightly higher VC and lower IPPM. | Identical unidirectional function but marginally reduced surge margin in high-energy ISO 7637-2 Pulse 2b scenarios. | Select SMAJ13A only if footprint compatibility with SMA package is required; SMCJ13CH offers superior thermal dissipation (RθJC = 10°C/W vs. 15°C/W). |
| Vishay SMF13A | DO-219AB (SMA) package; 25.0V clamping at 60A; lower PPK (600W); not AEC-Q101 qualified. | Limited to consumer/industrial use; unsuitable for automotive due to missing AEC-Q101 and ISO 7637-2 validation. | Choose SMF13A only for cost-sensitive non-automotive designs where 600W surge capability suffices and AEC-Q101 is not mandated. |
Compared with SMAJ13A and SMF13A, the SMCJ13CH delivers higher surge robustness (1500W vs. ≤600W), automotive-grade qualification (AEC-Q101 + ISO 7637-2), and superior thermal performance - making it the preferred choice for under-hood and safety-critical 12V systems.
Availability
SMCJ13CH is available at Aetrix Electronics and suitable for automotive electronics, industrial programmable logic controllers (PLCs), and telecom power supply designs requiring stable component supply with guaranteed long-term availability and traceable sourcing.
Supply support for SMCJ13CH 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, MOSFETs, and power management devices.
The SMCJ series belongs to TSC's automotive-grade transient suppression product line, engineered specifically for ISO 7637-2 compliance and AEC-Q101 reliability in harsh 12V/24V vehicle electrical systems.
FAQ
What is the polarity configuration of the SMCJ13CH?
The SMCJ13CH is a unidirectional TVS diode with cathode band marking on the DO-214AB package. It conducts in forward bias like a standard diode and clamps reverse transients above its breakdown voltage. This polarity is confirmed by its part number suffix 'H' (unidirectional) and absence of 'CH' or 'CAH' designation indicating bidirectional variants.
Does the SMCJ13CH meet AEC-Q101 requirements for automotive use?
Yes, the SMCJ13CH is explicitly AEC-Q101 qualified per the manufacturer's datasheet. It undergoes stress testing including high-temperature reverse bias (HTRB), temperature cycling, and ESD per AEC-Q101 standards - validating its suitability for automotive powertrain, body, and infotainment systems.
What is the maximum clamping voltage of the SMCJ13CH and at what current is it specified?
The SMCJ13CH has a maximum clamping voltage (VC) of 23.8 V, measured at a peak pulse current (IPPM) of 66 A using the standardized 10/1000 μs double-exponential waveform defined in Fig.5 of the datasheet. This value ensures protected downstream ICs remain within safe operating limits during surge events.
Can the SMCJ13CH be used in bidirectional applications?
No - the SMCJ13CH is strictly unidirectional. For bidirectional transient suppression, Taiwan Semiconductor specifies parts with 'CH' or 'CAH' suffixes (e.g., SMCJ13CH is not a valid part number; correct bidirectional equivalents are SMCJ13A or SMCJ13CAH). Using SMCJ13CH in reverse-biased AC paths will result in forward conduction and failure.
What is the thermal resistance from junction to case for the SMCJ13CH?
The SMCJ13CH has a junction-to-case thermal resistance (RθJC) of 10°C/W, as specified in the Thermal Performance section of the datasheet. This low value enables efficient heat transfer to the PCB copper pour or heatsink, supporting sustained operation at elevated ambient temperatures up to 125°C.
SMCJ13CH 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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 13V
- Voltage - Breakdown (Min):
- 14.4V
- Voltage - Clamping (Max) @ Ipp:
- 23.8V
- Current - Peak Pulse (10/1000µs):
- 66A
- 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)
SMCJ13CH FAQ
1.How can I place an order for SMCJ13CH through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ13CH 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 SMCJ13CH reliable?
The price and inventory of SMCJ13CH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ13CH is usually 5 days.
3.What payment methods are accepted for SMCJ13CH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ13CH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ13CH?
SMCJ13CH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ13CH 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 SMCJ13CH?
For technical support, including SMCJ13CH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ13CH requirements.
6.How does Aetrix verify that SMCJ13CH is sourced from the original manufacturer or authorized distributors?
All SMCJ13CH 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 SMCJ13CH meets industry standards.
7.What is the process for return or replacement of SMCJ13CH?
All SMCJ13CH units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ13CH, 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 SMCJ13CH part is unused and in its original packaging.
Return procedure for SMCJ13CH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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