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Taiwan Semiconductor Corporation SMCJ60A
- Part No.:
- SMCJ60A
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ60A.pdf
- Description:
- TVS DIODE 60VWM 96.8VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:4,566
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Product details
Overview
SMCJ60A 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), 66.7–73.7V breakdown voltage (VBR), and 96.8V maximum clamping voltage (VC) at 16A peak pulse current - designed to protect power rails and I/O lines in automotive lighting and industrial control systems.
For engineers reviewing the SMCJ60A datasheet, SMCJ60A pinout, SMCJ60A application, or SMCJ60A equivalent, key selection criteria include clamping performance under ISO 7637-2 Pulse 1/2a/2b/3a/3b transients, junction temperature derating above 25°C, moisture sensitivity level (MSL 1), and compatibility with automated SMT placement on 1.6mm-thick PCBs.
Technical Context
The SMCJ60A employs a glass-passivated silicon junction optimized for fast response (<1.0 ps from 0 V to VBR min) and low leakage (<1 µA at 60 V). Its single-die unidirectional structure provides asymmetric conduction: forward VF = 3.5 V @ 100 A (per spec note for SMCJ5.0–SMCJ90 series), reverse blocking up to 60 V, and robust surge handling per IEC 61000-4-5 and ISO 7637-2.
Thermal design relies on RθJA = 55°C/W and RθJC = 10°C/W, enabling operation from –55°C to +150°C junction temperature. The device meets JESD201 Class 2 whisker resistance and UL 94V-0 flammability requirements, with matte tin-plated leads compliant with J-STD-002 solderability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 60 V - Maximum continuous reverse operating voltage before clamping initiates |
| VBR @ IT=1 mA | 66.7–73.7 V - Breakdown threshold range ensuring reliable turn-on during transients |
| VC @ IPPM=16 A | 96.8 V - Clamped voltage limiting downstream circuit stress during 10/1000 µs surge |
| PPK | 1500 W - Peak pulse power rating per 1 ms non-repetitive waveform (Fig.5) |
| IR @ VWM | <1 µA - Negligible leakage current preserving signal integrity and low-power standby states |
| TJ max | +150 °C - Maximum junction temperature supporting under-hood automotive and high-ambient industrial use |
| Package | DO-214AB (SMC) - Standardized 7.11 × 6.22 mm surface-mount outline with cathode band marking |
Pinout & Package
DO-214AB (SMC) package: molded plastic case with two coplanar leads, cathode indicated by a band on one end; compatible with standard SMT reflow profiles and J-STD-002 soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path / low-side return | Connected to ground or lower-potential rail; conducts during positive surges when cathode is biased higher |
| Cathode | Reverse blocking terminal / protected line connection | Connected to the line being protected (e.g., 60 V supply); blocks until VBR exceeded, then clamps to VC |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR over lifetime and immunity to humidity-induced parameter drift |
| ISO 7637-2 compliance | Validated for Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (line impedance stabilization network) |
| MSL Level 1 rating | Zero floor life limitation - can be stored indefinitely at ≤30°C/60% RH without baking prior to reflow |
| RoHS & halogen-free | Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for environmentally constrained applications |
| Fast response time | <1.0 ps rise time enables protection of high-speed interfaces before IC damage occurs |
Applications
| Automotive LED Headlamp Driver Protection | Industrial PLC Digital Input Protection |
|---|---|
Use Scenario: Protects MOSFET gate drivers and current-sense amplifiers in 60 V LED driver modules subjected to load dump pulses up to ±100 V. IC Role / Device Role / Timing Role: Unidirectional TVS placed between 60 V rail and ground, clamping transients within 1 ns to limit stress on 100 V-rated FETs and op-amps. Use Value: Prevents latch-up and gate oxide rupture in driver ICs during ISO 7637-2 Pulse 5a events, extending system MTBF beyond 10,000 hours. | Use Scenario: Shields 24–60 V digital input channels of programmable logic controllers against EFT bursts and relay contact bounce. IC Role / Device Role / Timing Role: Mounted at connector entry point, shunting fast transients (<5 ns rise) before reaching optocoupler input stages. Use Value: Maintains EN 61000-4-4 Level 4 immunity (4 kV EFT) without adding RC filtering that degrades signal edge rate. |
| DC Power Supply Rail Protection | Telecom Line Card Surge Suppression |
Use Scenario: Safeguards 60 V intermediate bus in telecom rectifier modules exposed to lightning-induced surges on AC mains input. IC Role / Device Role / Timing Role: Paired with MOV and gas discharge tube in multi-stage protection network; handles fast-rising, low-energy components of hybrid waveforms. Use Value: Limits let-through voltage to <100 V during 10/1000 µs surges, preventing overvoltage shutdown of DC-DC controllers. | Use Scenario: Protects Ethernet PHY interface power pins (e.g., 3.3 V, 5 V, 12 V) on base station line cards connected to outdoor antennas. IC Role / Device Role / Timing Role: Unidirectional clamp on isolated DC bias rails feeding RF front-end amplifiers and bias tees. Use Value: Enables IEC 61000-4-5 10/700 µs surge withstand up to 1 kV without compromising RF insertion loss or noise figure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ60A | Lower PPK (600 W), same VWM/VBR/VC specs, SMB package (smaller footprint, higher RθJA) | Not suitable for 1500 W surge events; limited to lower-energy transients in space-constrained consumer electronics | Select only if peak surge energy is ≤600 W and board area is critical |
| 1.5KE60A | Through-hole TO-204AA (DO-41), identical electrical specs but 1.5 kW rating, higher thermal mass | Requires through-hole assembly; incompatible with fully SMT production; better sustained power dissipation | Choose for prototyping or legacy through-hole designs where reflow compatibility is not required |
Compared with SMBJ60A and 1.5KE60A, the SMCJ60A delivers optimal balance of high surge capability (1500 W), SMT manufacturability, and thermal performance (RθJA = 55°C/W) - making it preferred for automotive and industrial modules requiring both reliability and automated assembly.
Availability
SMCJ60A is available at Aetrix Electronics and suitable for automotive lighting systems, industrial PLC inputs, telecom power rails, and DC-DC converter protection requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for SMCJ60A 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 since 1979.
The SMCJ series belongs to TSC's high-power transient suppression product line, engineered specifically for automotive, industrial, and telecom applications demanding ISO 7637-2 compliance, MSL 1 handling, and robust surge immunity in compact SMT packages.
FAQ
What is the clamping voltage of SMCJ60A at its rated peak pulse current?
The SMCJ60A has a maximum clamping voltage (VC) of 96.8 V when subjected to its rated peak pulse current (IPPM) of 16 A under the standardized 10/1000 µs waveform. This value is measured per Fig.5 in the datasheet and ensures downstream components see less than 97 V during worst-case transients, critical for protecting 100 V-rated semiconductors.
Is SMCJ60A unidirectional or bidirectional, and how is polarity marked?
The SMCJ60A is a unidirectional TVS diode, with polarity indicated by a cathode band on the DO-214AB (SMC) package body. The band marks the cathode terminal, which must be connected to the line being protected (e.g., 60 V rail), while the anode connects to ground. Bidirectional variants use "CA" suffix (e.g., SMCJ60CA).
Does SMCJ60A meet automotive transient immunity standards?
Yes, the SMCJ60A meets ISO 7637-2 Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (capacitive coupling) requirements. Its 1500 W peak power rating, fast <1.0 ps response, and specified clamping behavior under defined waveforms make it suitable for 12 V and 24 V automotive subsystems including lighting and body control modules.
What is the maximum steady-state power dissipation (PD) for SMCJ60A?
The SMCJ60A has a steady-state power dissipation (PD) rating of 5 W at TA = 25°C. This value applies only to continuous DC or low-frequency reverse-biased conditions - not transient events. For surge protection, the device relies on its 1500 W peak pulse rating (PPK), with thermal derating applied above 25°C per Fig.2 in the datasheet.
Can SMCJ60A be used in place of SMCJ60 without modification?
No - SMCJ60A offers tighter VBR tolerance (66.7–73.7 V) versus SMCJ60 (66.7–81.5 V), resulting in more consistent clamping onset and lower VC (96.8 V vs. 107 V). While both share the same VWM (60 V) and package, substituting SMCJ60A for SMCJ60 improves transient response predictability but requires validation of system-level clamping margin under worst-case VBR min conditions.
SMCJ60A 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:
- 96.8V
- Current - Peak Pulse (10/1000µs):
- 15.5A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- Yes
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
SMCJ60A FAQ
1.How can I place an order for SMCJ60A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ60A 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 SMCJ60A reliable?
The price and inventory of SMCJ60A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ60A is usually 5 days.
3.What payment methods are accepted for SMCJ60A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ60A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ60A?
SMCJ60A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ60A 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 SMCJ60A?
For technical support, including SMCJ60A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ60A requirements.
6.How does Aetrix verify that SMCJ60A is sourced from the original manufacturer or authorized distributors?
All SMCJ60A 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 SMCJ60A meets industry standards.
7.What is the process for return or replacement of SMCJ60A?
All SMCJ60A units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ60A, 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 SMCJ60A part is unused and in its original packaging.
Return procedure for SMCJ60A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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