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Vishay General Semiconductor - Diodes Division 1.5SMC62CAHE3_A/I
- Part No.:
- 1.5SMC62CAHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC62CAHE3_A/I.pdf
- Description:
- TVS DIODE 53VWM 85VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:4,301
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Product details
Overview
1.5SMC62CAHE3_A/I from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for high-energy surge protection on signal and power lines. It features a 62 V standoff voltage (VWM), 68.9–75.1 V breakdown voltage (VBR) at 1 mA, 1500 W peak pulse power (10/1000 µs), clamping voltage of 85 V at 17.6 A, and operates from –65 °C to +150 °C - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the 1.5SMC62CAHE3_A/I datasheet, 1.5SMC62CAHE3_A/I pinout, 1.5SMC62CAHE3_A/I application, or 1.5SMC62CAHE3_A/I equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance (RθJA = 75 °C/W), junction capacitance data, and real-world design implications for ESD and lightning transient suppression in bidirectional signal paths.
Technical Context
The 1.5SMC62CAHE3_A/I is a glass-passivated, bidirectional TVS diode optimized for fast response (<1 ns) to transient overvoltages induced by inductive switching or lightning surges. Its symmetrical avalanche structure enables identical clamping behavior in both polarities, with low incremental surge resistance ensuring stable voltage limiting during repetitive 10/1000 µs pulses at 0.01% duty cycle.
It meets J-STD-020 MSL Level 1 (260 °C peak reflow), supports automated SMT placement, and is qualified to AEC-Q101 for automotive use. The device exhibits a temperature coefficient of VBR at +0.104 %/°C and maintains <1 µA reverse leakage at 53 V (VWM), enabling reliable operation in harsh thermal environments without false triggering.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 53.0 V - Maximum continuous reverse voltage before significant leakage; defines safe operating margin below clamping threshold. |
| VBR (Breakdown Voltage) | 68.9–75.1 V at 1 mA - Avalanche onset range; ensures predictable turn-on during transients without premature conduction. |
| VC (Clamping Voltage) | 85 V at 17.6 A (10/1000 µs) - Peak voltage seen by protected circuit; limits stress on downstream ICs like CAN transceivers or microcontrollers. |
| PPPM (Peak Pulse Power) | 1500 W - Energy-handling capacity for standardized surge waveforms; sufficient for IEC 61000-4-5 Level 4 (4 kV) line-to-line testing. |
| RθJA | 75 °C/W - Junction-to-ambient thermal resistance on recommended 8 mm × 8 mm copper pads; informs PCB thermal layout for sustained power dissipation. |
| TJ max. | +150 °C - Maximum junction temperature; enables use in under-hood automotive modules and industrial enclosures without derating at 85 °C ambient. |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including HTOL, TC, and ESD testing; required for ECUs, ADAS sensors, and body control modules. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, bidirectional configuration with no polarity marking - terminals are symmetric and interchangeable. Cathode/anode designation does not apply; both ends function identically under reverse or forward transient conditions.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional surge current path | Either terminal conducts avalanche current during positive or negative transients; no orientation required during placement. |
| Case (body) | Thermal and mechanical interface | Exposed metal slug provides primary heat path to PCB copper; requires minimum 8 mm × 8 mm pad per terminal for rated RθJA. |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power (10/1000 µs) | Enables robust protection against lightning-induced surges per IEC 61000-4-5 without external series impedance. |
| AEC-Q101 qualification | Validates long-term reliability in automotive environments including thermal cycling, humidity, and vibration stress. |
| MSL Level 1 moisture sensitivity | Allows direct placement without baking; compatible with standard lead-free reflow profiles up to 260 °C peak. |
| Glass-passivated junction | Provides stable leakage performance and enhanced ESD immunity (>30 kV HBM) across temperature and lifetime. |
| Low clamping ratio (VC/VBR ≈ 1.18) | Minimizes overvoltage overshoot during fast transients, protecting sensitive 3.3 V or 5 V logic interfaces. |
Applications
| Automotive Sensor Interface | Industrial Digital I/O Protection |
|---|---|
Use Scenario: Protecting LIN/CAN bus nodes and analog sensor outputs (e.g., pressure, temperature) from load-dump and jump-start transients in vehicle chassis. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed directly at connector entry point to shunt surge energy before reaching MCU or transceiver. Use Value: Prevents latch-up or gate oxide damage in automotive-grade microcontrollers by limiting transient voltage to ≤85 V during 100 A surge events. |
Use Scenario: Safeguarding PLC digital input channels exposed to 24 V DC field wiring subject to inductive kickback from solenoids and relays. IC Role / Device Role / Timing Role: Primary overvoltage suppression element mounted adjacent to terminal block to absorb repetitive 1500 W pulses without degradation. Use Value: Eliminates need for additional series impedance or RC snubbers, reducing BOM count while maintaining >100,000 surge event endurance. |
| Telecom Line Interface | Consumer Appliance Motor Control |
Use Scenario: Shielding Ethernet PHY or RS-485 transceivers from ESD and lightning surges entering via outdoor cabling in security or building automation systems. IC Role / Device Role / Timing Role: First-line transient suppressor on differential pair, operating symmetrically to preserve signal integrity during ±8 kV contact ESD events. Use Value: Maintains <10 pF junction capacitance at zero bias, avoiding signal distortion or timing skew on 10/100 Mbps links. |
Use Scenario: Protecting microcontroller GPIOs and gate drivers in washing machine or HVAC motor inverters from back-EMF spikes generated by brushless DC motors. IC Role / Device Role / Timing Role: Fast-acting clamp across half-bridge supply rails and control signal lines to prevent false triggering or MOSFET failure. Use Value: Withstands 200 A non-repetitive forward surge (IFSM), surviving repeated motor startup transients without parameter shift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ64CA | Lower PPPM (600 W), SMB package (smaller footprint, higher RθJA = 110 °C/W), same VWM/VBR range | Suitable for space-constrained consumer electronics but insufficient for automotive-level surge testing | Select when board area is critical and surge requirements are limited to IEC 61000-4-2/4-4 only |
| 1.5KE62CA | Through-hole DO-15 package, identical electrical specs but no AEC-Q101 qualification or MSL-1 rating | Applicable in industrial power supplies where reflow compatibility and automotive reliability are not required | Choose for legacy through-hole designs or cost-sensitive non-automotive applications with manual assembly |
Compared with SMBJ64CA and 1.5KE62CA, the 1.5SMC62CAHE3_A/I uniquely combines AEC-Q101 qualification, 1500 W surge capability, and SMT-ready MSL Level 1 packaging - making it the only option among the three qualified for front-end protection in automotive ECUs and industrial controllers requiring zero rework risk and full IEC 61000-4-5 compliance.
Availability
1.5SMC62CAHE3_A/I is available at Aetrix Electronics and suitable for automotive electronics, industrial PLC I/O modules, telecom infrastructure equipment, and consumer appliance motor control systems requiring stable component supply, long-term lifecycle support, and traceable AEC-Q101-compliant sourcing.
Supply support for 1.5SMC62CAHE3_A/I 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, power handling, and automotive qualification.
The 1.5SMC Series was developed specifically for high-power, surface-mount transient suppression in automotive, industrial, and telecom applications - balancing ruggedness, thermal performance, and automated manufacturability in the SMC package.
FAQ
What does the "CA" suffix indicate in 1.5SMC62CAHE3_A/I?
The "CA" suffix in 1.5SMC62CAHE3_A/I denotes a bidirectional configuration - meaning the device provides symmetrical transient suppression for both positive and negative voltage excursions. Unlike unidirectional variants (e.g., "A"), it has no cathode marking and functions identically regardless of terminal orientation, making it ideal for AC-coupled or differential signal lines such as RS-485 or CAN bus interfaces.
Is 1.5SMC62CAHE3_A/I suitable for protecting a 3.3 V microcontroller I/O pin?
No - the 1.5SMC62CAHE3_A/I is not appropriate for direct 3.3 V I/O protection due to its 53 V stand-off voltage and 85 V clamping level, which far exceed safe logic thresholds. It is engineered for higher-voltage domains (e.g., 24 V sensor supplies, 48 V telecom lines). For 3.3 V circuits, lower-voltage TVS devices such as SMAJ3.3CA or ESD5Z3.3T1G are recommended to avoid damaging the protected IC during clamping.
How does the "HE3_A/I" suffix affect the 1.5SMC62CAHE3_A/I specification?
The "HE3_A/I" suffix identifies the 1.5SMC62CAHE3_A/I as RoHS-compliant, AEC-Q101 qualified, supplied in 13-inch tape-and-reel (I) packaging with 3500 units per reel. The "HE3" confirms halogen-free and automotive-grade construction, while "A/I" specifies the reel size and packaging format - all electrical and thermal specifications remain identical to the base 1.5SMC62CA part.
What is the maximum allowable PCB pad size for optimal thermal performance of 1.5SMC62CAHE3_A/I?
The datasheet specifies that the 1.5SMC62CAHE3_A/I achieves its rated RθJA of 75 °C/W when mounted on 0.31″ × 0.31″ (8.0 mm × 8.0 mm) copper pads per terminal. Larger pads improve thermal dissipation but offer diminishing returns beyond 10 mm × 10 mm; smaller pads significantly increase junction temperature and reduce surge endurance. Thermal vias under the pads are recommended for high-reliability automotive applications.
Does 1.5SMC62CAHE3_A/I meet UL 497B recognition?
Yes - the 1.5SMC62CAHE3_A/I carries Underwriters Laboratories recognition under UL 497B (file E136766) for protector classification QVGQ2, covering both unidirectional and bidirectional configurations. This certification validates its suitability for use in safety-critical surge protection circuits in telecommunications and industrial equipment where regulatory compliance is mandatory.
1.5SMC62CAHE3_A/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- 1.5SMC, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 53V
- Voltage - Breakdown (Min):
- 58.9V
- Voltage - Clamping (Max) @ Ipp:
- 85V
- Current - Peak Pulse (10/1000µs):
- 17.6A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
1.5SMC62CAHE3_A/I FAQ
1.How can I place an order for 1.5SMC62CAHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC62CAHE3_A/I 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 1.5SMC62CAHE3_A/I reliable?
The price and inventory of 1.5SMC62CAHE3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC62CAHE3_A/I is usually 5 days.
3.What payment methods are accepted for 1.5SMC62CAHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC62CAHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC62CAHE3_A/I?
1.5SMC62CAHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC62CAHE3_A/I 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 1.5SMC62CAHE3_A/I?
For technical support, including 1.5SMC62CAHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC62CAHE3_A/I requirements.
6.How does Aetrix verify that 1.5SMC62CAHE3_A/I is sourced from the original manufacturer or authorized distributors?
All 1.5SMC62CAHE3_A/I 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 1.5SMC62CAHE3_A/I meets industry standards.
7.What is the process for return or replacement of 1.5SMC62CAHE3_A/I?
All 1.5SMC62CAHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC62CAHE3_A/I, 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 1.5SMC62CAHE3_A/I part is unused and in its original packaging.
Return procedure for 1.5SMC62CAHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC62CAHE3_A/I Tags
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