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Taiwan Semiconductor Corporation SMCJ60
- Part No.:
- SMCJ60
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ60.pdf
- Description:
- 1500W, 74.1V, 10%, UNIDIRECTIONA
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
SMCJ60 from Taiwan Semiconductor is a unidirectional 1500W surface-mount transient voltage suppressor (TVS) diode in DO-214AB (SMC) package, with 60V working stand-off voltage (VWM), 66.7–81.5V breakdown voltage (VBR), and 107V maximum clamping voltage (VC) at 14A peak pulse current - designed for automotive load-dump and inductive switching protection in power supply rails.
For engineers reviewing the SMCJ60 datasheet, SMCJ60 pinout, SMCJ60 application, or SMCJ60 equivalent, key selection criteria include clamping performance under ISO 7637-2 Pulse 5a, thermal derating above 25°C ambient, unidirectional polarity marking, and compatibility with automated SMT placement on high-reliability industrial PCBs.
Technical Context
The SMCJ60 operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds its VBR range (66.7–81.5V @ 1mA), clamping transients to ≤107V within <1.0ps response time. It sustains 1500W peak pulse power (tp = 1ms, 10/1000μs waveform) and handles up to 200A non-repetitive forward surge (IFSM).
Thermally, it features RθJA = 55°C/W and RθJC = 10°C/W, enabling operation from –55°C to +150°C junction temperature. Its glass-passivated junction and matte tin-plated leads meet J-STD-002 solderability and JESD 201 Class 2 whisker resistance requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 60 V - Maximum continuous reverse operating voltage before conduction begins |
| VBR min/max | 66.7 V / 81.5 V @ 1 mA - Ensures reliable triggering above system nominal rail without false trips |
| VC @ IPPM | 107 V @ 14 A - Limits downstream IC stress during ISO 7637-2 Pulse 5a load dump events |
| PPK | 1500 W - Withstands single 1ms transient surges common in 12V/24V automotive systems |
| IR @ VWM | <1 µA - Negligible leakage at rated stand-off, preserving low-power standby integrity |
| TJ max | +150 °C - Supports under-hood deployment with standard PCB copper pour thermal relief |
Pinout & Package
DO-214AB (SMC) surface-mount package with cathode band marking on one end; bidirectional variants use "CA" suffix, but SMCJ60 is unidirectional and polarity-specific.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference node | Connected to ground or low-impedance return path; defines conduction direction |
| Cathode | Protected line input | Connected to power rail (e.g., 12V battery feed); clamps transients to anode |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR over lifetime and humidity exposure per J-STD-020 MSL Level 1 |
| ISO 7637-2 compliance | Validated for Pulse 1, 2a, 2b, 3a, 3b - covers most automotive EMI immunity test conditions |
| Fast response time | <1.0 ps rise-to-breakdown - protects fast-edge logic and MCU I/O against ESD/EFT coupling |
| RoHS & halogen-free | Meets IEC 61249-2-21 and EU RoHS directives - suitable for green manufacturing programs |
Applications
| Automotive Power Rail Protection | Industrial PLC Input Protection |
|---|---|
Use Scenario: 12V battery-fed ECU power input subjected to load dump (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role / Timing Role: Primary clamping device placed upstream of DC/DC converter input. Use Value: Clamps 107V at 14A, limiting stress on downstream regulators and preventing latch-up in microcontrollers. | Use Scenario: 24V digital input module exposed to inductive kickback from solenoid drivers and relay coils. IC Role / Device Role / Timing Role: Standoff protector across field-side input terminals before optocoupler or Schmitt trigger. Use Value: Absorbs 1500W transient energy without degradation, maintaining signal integrity during repeated switching cycles. |
| LED Driver Overvoltage Suppression | Telecom Line Card Surge Protection |
Use Scenario: Constant-current LED driver board powered from unregulated 48V telecom supply with lightning-induced surges. IC Role / Device Role / Timing Role: Unidirectional TVS on input bus, coordinated with fuse and MOV staging. Use Value: 60V VWM allows margin above 48V nominal while clamping to 107V - avoids nuisance tripping yet blocks destructive transients. | Use Scenario: Low-voltage analog interface (e.g., RS-485 PHY) on line card connected to outdoor cabling. IC Role / Device Role / Timing Role: Secondary-level protection after gas discharge tube (GDT), handling residual fast-rising edges. Use Value: Sub-1ps response captures EFT bursts missed by slower primary protectors, preserving data integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SAC5.0-1500 | Same 1500W rating and DO-214AB package, but VWM = 5.0V and VC = 9.2V - not voltage-scaled for 60V rail | Designed for 5V logic-level protection, not 60V power rail clamping | Select only if protecting sub-12V circuits; incompatible for SMCJ60's 60V system role |
| SMCJ60A | Narrower VBR range (66.7–73.7V vs. 66.7–81.5V); same VWM, VC = 96.8V @ 16A - tighter tolerance, lower clamping | Preferred where consistent clamping voltage and reduced VBR spread improve design margin predictability | Drop-in replacement with improved consistency; verify layout supports identical DO-214AB footprint |
Compared with SAC5.0-1500 and SMCJ60A, the SMCJ60 offers broader VBR tolerance suited for cost-sensitive 60V rail protection, while SMCJ60A delivers tighter clamping for precision designs - neither is pin-compatible with lower-voltage TVS families.
Availability
SMCJ60 is available at Aetrix Electronics and suitable for automotive ECUs, industrial PLC inputs, LED driver boards, and telecom line cards requiring stable component supply across extended production lifecycles.
Supply support for SMCJ60 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, serving global automotive, industrial, and consumer markets since 1979.
The SMCJ series belongs to TSC's high-power TVS diode product line, engineered specifically for robust transient immunity in harsh environments - including ISO 7637-2-compliant automotive power systems and IEC 61000-4-5 industrial surge scenarios.
FAQ
What is the clamping voltage of the SMCJ60 under standard test conditions?
The SMCJ60 has a maximum clamping voltage (VC) of 107 V at 14 A peak pulse current (IPPM), measured using the 10/1000 μs waveform per IEC 61000-4-5. This value ensures predictable overvoltage limiting during standardized surge events and is confirmed in the official Taiwan Semiconductor datasheet revision S2104.
Is the SMCJ60 unidirectional or bidirectional, and how is polarity identified?
The SMCJ60 is a unidirectional TVS diode. Polarity is marked by a cathode band on the DO-214AB (SMC) package body - the banded end connects to the protected line (cathode), while the opposite end connects to ground (anode). Bidirectional versions carry a "CA" suffix (e.g., SMCJ60CA).
Does the SMCJ60 meet automotive transient immunity standards?
Yes, the SMCJ60 meets ISO 7637-2 requirements for Pulse 1, 2a, 2b, 3a, and 3b - covering typical conducted transients in 12V and 24V vehicle electrical systems. Its 1500W peak power rating and fast response support compliance with Pulse 5a (load dump) when used with appropriate series impedance.
What is the maximum junction temperature rating for the SMCJ60?
The SMCJ60 has a maximum junction temperature (TJ) rating of +150°C, with operational capability from –55°C to +150°C. This enables deployment in under-hood automotive locations and high-ambient industrial enclosures, provided PCB thermal relief (e.g., copper pour, thermal vias) supports the specified RθJA of 55°C/W.
Can the SMCJ60 be used in place of the SMCJ60A?
The SMCJ60 and SMCJ60A share the same VWM (60 V) and DO-214AB package but differ in VBR range (66.7–81.5 V vs. 66.7–73.7 V) and clamping voltage (107 V vs. 96.8 V). While electrically interchangeable in many designs, the SMCJ60A offers tighter VBR tolerance and lower VC - verify system margin before substitution, especially in precision-clamp applications.
SMCJ60 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):
- 60V
- Voltage - Breakdown (Min):
- 66.7V
- Voltage - Clamping (Max) @ Ipp:
- 107V
- Current - Peak Pulse (10/1000µs):
- 14A
- 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)
SMCJ60 FAQ
1.How can I place an order for SMCJ60 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ60 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 SMCJ60 reliable?
The price and inventory of SMCJ60 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ60 is usually 5 days.
3.What payment methods are accepted for SMCJ60?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ60 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ60?
SMCJ60 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ60 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 SMCJ60?
For technical support, including SMCJ60 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ60 requirements.
6.How does Aetrix verify that SMCJ60 is sourced from the original manufacturer or authorized distributors?
All SMCJ60 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 SMCJ60 meets industry standards.
7.What is the process for return or replacement of SMCJ60?
All SMCJ60 units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ60, 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 SMCJ60 part is unused and in its original packaging.
Return procedure for SMCJ60:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ60 Tags
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