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Vishay General Semiconductor - Diodes Division SMCJ60CAHE3/9AT
- Part No.:
- SMCJ60CAHE3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ60CAHE3/9AT.pdf
- Description:
- TVS DIODE 60VWM 96.8VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,293
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Product details
Overview
SMCJ60CAHE3/9AT from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for robust overvoltage protection of DC power rails and signal lines. It features a 60 V standoff voltage (VWM), 96.8 V maximum clamping voltage (VC) at 15.5 A peak pulse current (IPPM), and 1500 W peak pulse power (10/1000 µs waveform), making it suitable for automotive power supply line protection per ISO 7637-2.
For engineers reviewing the SMCJ60CAHE3/9AT datasheet, SMCJ60CAHE3/9AT pinout, SMCJ60CAHE3/9AT application, or SMCJ60CAHE3/9AT equivalent, key selection criteria include bidirectional clamping symmetry, AEC-Q101 qualification, 150 °C junction temperature rating, low incremental surge resistance, and compatibility with automated SMT placement on 8 mm × 8 mm copper pads.
Technical Context
The SMCJ60CAHE3/9AT operates as a voltage-clamped shunt protector: under normal conditions it presents high impedance (<1 µA leakage at 60 V), but triggers into low-impedance conduction when transient voltage exceeds its 66.7–73.7 V breakdown range (VBR at 1 mA). Its glass-passivated junction ensures stable avalanche characteristics and fast response (<1 ns).
Designed for bidirectional transients, it delivers symmetrical clamping in both polarities without polarity marking. Its thermal resistance (RθJA = 75 °C/W) and 150 °C max junction temperature support operation in under-hood automotive environments when mounted per recommended pad layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 60 V - Maximum continuous reverse voltage before significant leakage; defines operating rail margin. |
| VBR (Breakdown Voltage) | 66.7–73.7 V at 1 mA - Guaranteed avalanche initiation range; ensures reliable triggering above nominal rail. |
| VC (Clamping Voltage) | 96.8 V at 15.5 A (10/1000 µs) - Peak voltage seen by protected circuit during worst-case surge; limits stress on downstream ICs. |
| PPPM (Peak Pulse Power) | 1500 W - Energy-handling capacity for standardized 10/1000 µs transients; meets ISO 7637-2 Pulse 5a requirements. |
| TJ max | 150 °C - Maximum junction temperature; enables use in high-ambient automotive engine compartments. |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD; required for powertrain and body control modules. |
| Package | SMC (DO-214AB) - Surface-mount outline with 7.75 mm × 6.22 mm footprint; supports automated pick-and-place and reflow soldering. |
Pinout & Package
Package: SMC (DO-214AB), molded plastic case with matte tin-plated leads, UL 94 V-0 rated. Bidirectional construction has no polarity marking; both terminals are electrically symmetric.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetric) | Transient current path | Either terminal conducts during positive or negative overvoltage events; no cathode band marking required for bidirectional operation. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns. |
| AEC-Q101 qualification | Validates reliability for automotive applications including engine control units and ADAS power supplies. |
| 1500 W peak pulse power | Withstands severe load-dump and inductive-switching transients common in 12 V vehicle systems. |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes voltage overshoot during clamping, reducing stress on protected MOSFETs and microcontrollers. |
| MSL Level 1 (260 °C peak) | Allows standard lead-free reflow without moisture sensitivity concerns or baking requirements. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs against ISO 7637-2 Pulse 5a load dump transients up to 110 V. IC Role / Device Role / Timing Role: Shunt TVS device placed at power entry point to clamp surges before they reach LDOs and MCU power pins. Use Value: Limits voltage to ≤96.8 V during 15.5 A surge, preventing latch-up or permanent damage to 3.3 V/5 V logic powered from the rail. | Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) connected to PLC I/O modules exposed to field wiring transients. IC Role / Device Role / Timing Role: Bidirectional clamping element across differential signal pair or single-ended output to ground. Use Value: Symmetrical clamping preserves signal integrity during ±1 kV EFT bursts while maintaining <1 µA leakage at 60 V operating bias. |
| Telecom Line Interface Protection | Consumer Power Adapter Input Protection |
Use Scenario: Shielding Ethernet PHY power pins (e.g., PoE midspan injectors) from induced lightning surges on long cable runs. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 3.3 V or 5 V auxiliary supply lines feeding communication ICs. Use Value: 1500 W rating handles multi-kA surge currents; 150 °C rating ensures stability in enclosed telecom chassis. | Use Scenario: Adding secondary surge immunity to AC-DC adapter DC output rails feeding USB-C PD controllers or display logic. IC Role / Device Role / Timing Role: Final-stage TVS on regulated 5 V/9 V/12 V output to absorb residual switching noise and external coupling. Use Value: Low VC/VBR ratio prevents brownout during clamping; RoHS-compliant HE3 suffix meets global regulatory requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SAC5.0-1500B | Same 1500 W rating, but unidirectional; VWM = 5.0 V, VC = 9.2 V at 163 A - optimized for low-voltage data lines. | Not suitable for bidirectional or >5 V rails; requires polarity-aware layout. | Select only for unidirectional 5 V signal protection where polarity is fixed and clamping voltage must be minimized. |
| SMCJ64CAHE3/9AT | Higher VWM = 64 V, VBR = 71.1–78.6 V, VC = 103 V at 14.6 A - wider margin for 60 V nominal systems with tolerance stack-up. | Better suited for 60 V industrial systems with ±10 % supply variation or higher transient thresholds. | Choose when system nominal voltage tolerances exceed ±5 % or when clamping margin above 60 V must exceed 30 V. |
Compared with SAC5.0-1500B and SMCJ64CAHE3/9AT, the SMCJ60CAHE3/9AT provides optimal balance of 60 V standoff, 96.8 V clamping, and AEC-Q101 qualification for mainstream 12 V automotive and industrial power rail protection - neither over-specified nor marginal for ISO 7637-2 compliance.
Availability
SMCJ60CAHE3/9AT is available at Aetrix Electronics and suitable for automotive ECU design, industrial sensor interface development, and telecom power supply hardening requiring stable component supply and full traceability.
Supply support for SMCJ60CAHE3/9AT 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
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, and protection devices with emphasis on reliability and automotive qualification.
The SMCJ series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-energy transient suppression in harsh environments including automotive, industrial, and telecom infrastructure.
FAQ
What does the "CA" suffix indicate in SMCJ60CAHE3/9AT?
The "CA" suffix denotes a bidirectional configuration: the SMCJ60CAHE3/9AT provides symmetrical clamping for both positive and negative transients, with identical VBR, VC, and IPPM ratings in either polarity. Unlike unidirectional variants (e.g., SMCJ60A), it has no cathode marking and is used where polarity reversal or AC-coupled signals require protection without orientation constraints. This makes SMCJ60CAHE3/9AT ideal for differential bus lines or floating power domains.
Is SMCJ60CAHE3/9AT qualified for automotive applications?
Yes, SMCJ60CAHE3/9AT carries the HE3 suffix, which indicates RoHS-compliance and full AEC-Q101 qualification. It has passed stress tests including temperature cycling, high-temperature reverse bias (HTRB), and electrostatic discharge (ESD), confirming suitability for automotive powertrain, body control, and ADAS modules. The 150 °C TJ max and MSL Level 1 rating further validate its readiness for under-hood deployment. SMCJ60CAHE3/9AT meets these requirements out-of-the-box.
How does the clamping voltage of SMCJ60CAHE3/9AT compare to its breakdown voltage?
The SMCJ60CAHE3/9AT has a VBR range of 66.7–73.7 V (at 1 mA) and a maximum clamping voltage VC of 96.8 V at 15.5 A (10/1000 µs waveform), yielding a clamping ratio of approximately 1.45. This low ratio reflects efficient energy absorption with minimal voltage overshoot - critical for protecting 60 V-rated components. The difference between VC and VBR represents the device's incremental surge resistance under transient load, confirmed by Vishay's characterization on 8 mm × 8 mm copper pads.
What is the thermal resistance of SMCJ60CAHE3/9AT, and how does it affect PCB layout?
The SMCJ60CAHE3/9AT has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on the minimum recommended pad layout (0.31″ × 0.31″ copper pads per terminal). To maintain TJ ≤ 150 °C under 1500 W surge conditions, designers must ensure adequate copper area and avoid excessive ambient temperature rise. For sustained power dissipation, thermal vias and internal ground planes are recommended. The RθJA value directly informs heatsinking strategy in automotive and industrial applications using SMCJ60CAHE3/9AT.
Can SMCJ60CAHE3/9AT replace SMCJ60A in an existing design?
No - SMCJ60CAHE3/9AT is bidirectional while SMCJ60A is unidirectional, meaning they differ fundamentally in polarity behavior and marking. SMCJ60A has a cathode band and conducts only in reverse bias; SMCJ60CAHE3/9AT has no marking and clamps equally in both directions. Substituting one for the other without circuit review risks incorrect clamping or failure to protect AC transients. Always verify signal topology and transient directionality before selecting SMCJ60CAHE3/9AT versus SMCJ60A.
SMCJ60CAHE3/9AT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- 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:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
SMCJ60CAHE3/9AT FAQ
1.How can I place an order for SMCJ60CAHE3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ60CAHE3/9AT 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 SMCJ60CAHE3/9AT reliable?
The price and inventory of SMCJ60CAHE3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ60CAHE3/9AT is usually 5 days.
3.What payment methods are accepted for SMCJ60CAHE3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ60CAHE3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ60CAHE3/9AT?
SMCJ60CAHE3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ60CAHE3/9AT 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 SMCJ60CAHE3/9AT?
For technical support, including SMCJ60CAHE3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ60CAHE3/9AT requirements.
6.How does Aetrix verify that SMCJ60CAHE3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCJ60CAHE3/9AT 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 SMCJ60CAHE3/9AT meets industry standards.
7.What is the process for return or replacement of SMCJ60CAHE3/9AT?
All SMCJ60CAHE3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ60CAHE3/9AT, 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 SMCJ60CAHE3/9AT part is unused and in its original packaging.
Return procedure for SMCJ60CAHE3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ60CAHE3/9AT Tags
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