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Vishay General Semiconductor - Diodes Division 1.5SMC62A-M3/9AT
- Part No.:
- 1.5SMC62A-M3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC62A-M3/9AT.pdf
- Description:
- TVS DIODE 53VWM 85VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:9,126
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Product details
Overview
1.5SMC62A-M3/9AT from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, designed for high-energy surge protection with 1500 W peak pulse power (10/1000 μs), 62 V breakdown voltage (VBR = 58.9–65.1 V at IT = 1.0 mA), and 85.0 V maximum clamping voltage (VC) at 17.6 A peak pulse current. It protects sensitive ICs and MOSFETs in automotive and industrial power rails.
For engineers reviewing the 1.5SMC62A-M3/9AT datasheet, 1.5SMC62A-M3/9AT pinout, 1.5SMC62A-M3/9AT application, or 1.5SMC62A-M3/9AT equivalent, key selection criteria include unidirectional polarity, 53.0 V stand-off voltage (VWM), <1.0 μA reverse leakage at VWM, MSL Level 1 moisture sensitivity, and halogen-free RoHS compliance per Vishay's M3 suffix.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: under normal conditions it presents high impedance (>1 MΩ) below VWM = 53.0 V; during transients exceeding VBR, it avalanches rapidly (<1 ns response) to clamp voltage at ≤85.0 V while diverting up to 17.6 A (10/1000 μs). Its glass-passivated junction ensures stable breakdown and low incremental surge resistance.
The device is rated for continuous power dissipation of 6.5 W on infinite heatsink at 50 °C, with thermal resistance RθJA = 75 °C/W and RθJL = 15 °C/W. It supports operating junction temperatures from –65 °C to +150 °C and meets JESD201 Class 2 whisker resistance and UL 94 V-0 flammability requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 58.9 V / 65.1 V at 1.0 mA test current - defines precise avalanche onset range for reliable overvoltage triggering |
| VWM | 53.0 V - maximum continuous reverse operating voltage before significant leakage begins |
| VC @ IPPM | 85.0 V at 17.6 A - clamping voltage during 1500 W transient, limiting stress on downstream components |
| IPPM | 17.6 A - peak pulse current capability under standardized 10/1000 μs waveform |
| Power rating | 1500 W peak (10/1000 μs), 6.5 W steady-state - enables robust surge handling without thermal runaway |
| Leakage (ID) | <1.0 μA at VWM - ensures negligible standby power loss and signal integrity in high-impedance circuits |
| Package | SMC (DO-214AB) - industry-standard surface-mount outline with 8.0 mm × 8.0 mm copper pad thermal design |
Pinout & Package
Package: SMC (DO-214AB), molded plastic case with matte tin-plated leads; cathode indicated by band; compliant with J-STD-002 and JESD22-B102 solderability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction | Connected to system ground or low-side reference; enables unidirectional clamping from line-to-ground |
| Cathode | Current exit terminal during forward conduction; marked with band | Connected to protected line (e.g., 48 V rail); avalanche occurs when cathode-to-anode voltage exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power | Withstands severe lightning-induced surges (IEC 61000-4-5 Level 4) without failure when mounted per recommended 8.0 mm × 8.0 mm pads |
| Glass-passivated junction | Ensures stable VBR tolerance (±5%), low leakage drift over temperature, and long-term reliability in harsh environments |
| MSL Level 1 rating | Allows unlimited floor life and reflow at peak 260 °C without baking-compatible with standard SMT assembly processes |
| Halogen-free & RoHS-compliant (M3) | Fulfills environmental compliance requirements for automotive and industrial end equipment without compromising electrical performance |
| AEC-Q101 qualified option | Available as 1.5SMC62AHM3_A variant for automotive applications requiring validated reliability per stress-test protocol |
Applications
| Automotive Power Rail Protection | Industrial PLC I/O Module Protection |
|---|---|
|
Use Scenario: Protecting 48 V battery-supplied ECUs against load dump transients (ISO 16750-2) and coupled ESD events. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between power rail and chassis ground to clamp spikes above 53 V. Use Value: Limits transient voltage to ≤85.0 V, preventing damage to MCU power supplies and CAN transceivers rated for 60 V absolute max. |
Use Scenario: Safeguarding analog input channels (e.g., 0–10 V sensors) in programmable logic controllers exposed to field wiring surges. IC Role / Device Role / Timing Role: Line-to-ground TVS on each channel input, coordinated with series current-limiting resistor and filtering capacitor. Use Value: Responds in <1 ns to suppress fast-rising transients (e.g., inductive kickback), preserving ADC accuracy and preventing latch-up. |
| Telecom DC Power Feeding Protection | Consumer Appliance Motor Drive Protection |
|
Use Scenario: Securing PoE-powered network switches and base stations against AC-line-coupled surges entering via 48 V DC feed lines. IC Role / Device Role / Timing Role: Primary overvoltage clamp on midspan PSE output, upstream of DC-DC converters and Ethernet PHYs. Use Value: Absorbs 1500 W pulses without degradation, maintaining system uptime and meeting ITU-T K.20/21 immunity requirements. |
Use Scenario: Shielding BLDC motor driver ICs in washing machines and HVAC systems from back-EMF spikes during commutation. IC Role / Device Role / Timing Role: Unidirectional TVS across H-bridge high-side FET drain-source, referenced to local ground plane. Use Value: Clamps inductive energy within safe VDS limits of 600 V-rated MOSFETs, eliminating need for snubbers and reducing BOM count. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ64A (Bourns) | Same SMC package, but lower 1000 W PPPM rating and higher VC = 103 V at 9.9 A; VBR = 71.1–78.6 V | Less robust for high-energy 10/1000 μs surges; suitable only where peak current <10 A is expected | Select only if system-level testing confirms 1000 W margin is sufficient and layout allows tighter thermal management |
| 1.5KE62A (Vishay, through-hole) | Identical electrical specs (VBR, VC, PPPM), but DO-201AE package; larger footprint, higher RθJA = 100 °C/W | Not suitable for dense SMT layouts; requires wave-solder or hand-solder process; inferior thermal performance | Choose only for legacy through-hole designs or prototyping where SMT reflow is unavailable |
Compared with SMBJ64A and 1.5KE62A, the 1.5SMC62A-M3/9AT delivers superior surge robustness in compact SMT form factor, enabling higher power density and better thermal coupling to PCB copper-critical for automotive and industrial modules with strict size and reliability constraints.
Availability
1.5SMC62A-M3/9AT is available at Aetrix Electronics and suitable for automotive electronics, industrial control systems, and telecom power supply designs requiring stable component supply, halogen-free compliance, and AEC-Q101-qualified alternatives.
Supply support for 1.5SMC62A-M3/9AT 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, efficiency, and application-specific optimization.
The 1.5SMC Series was engineered for high-power, surface-mount transient suppression in space-constrained environments-targeting automotive, industrial, and telecom applications demanding >1000 W surge capability and MSL Level 1 assembly compatibility.
FAQ
What is the maximum clamping voltage of the 1.5SMC62A-M3/9AT under a 10/1000 μs surge?
The 1.5SMC62A-M3/9AT has a maximum clamping voltage (VC) of 85.0 V when subjected to its rated peak pulse current of 17.6 A under the 10/1000 μs waveform. This value is measured per Figure 1 in Vishay document 88303 and ensures downstream components see limited overvoltage stress during surge events. The 1.5SMC62A-M3/9AT maintains this clamping performance across its specified operating temperature range.
Is the 1.5SMC62A-M3/9AT suitable for automotive applications?
Yes-the 1.5SMC62A-M3/9AT is halogen-free and RoHS-compliant per its M3 suffix, and an AEC-Q101-qualified version (1.5SMC62AHM3_A) is available for automotive use. While the base 1.5SMC62A-M3/9AT itself is commercial-grade, its construction-including glass-passivated junction, MSL Level 1 rating, and –65 °C to +150 °C operating range-supports deployment in non-safety-critical automotive subsystems such as body control modules and infotainment power rails.
What does the "/9AT" suffix indicate in 1.5SMC62A-M3/9AT?
The "/9AT" suffix denotes packaging: 3500 units per 13-inch diameter plastic tape-and-reel. This format is optimized for high-volume SMT placement using standard pick-and-place equipment. The "M3" prefix confirms halogen-free, RoHS-compliant construction, while "A" specifies unidirectional polarity. The 1.5SMC62A-M3/9AT is not a different electrical variant-it shares identical electrical characteristics with other 1.5SMC62A-M3 variants differing only in reel size or carrier type.
How does the 1.5SMC62A-M3/9AT compare to bidirectional TVS diodes like 1.5SMC62CA?
The 1.5SMC62A-M3/9AT is unidirectional and features a cathode band for polarity identification; it conducts only in reverse avalanche mode and blocks forward current. In contrast, 1.5SMC62CA is bidirectional with symmetrical clamping in both directions and no polarity marking. Use the 1.5SMC62A-M3/9AT where protection is needed only on a single-polarity rail (e.g., +48 V to ground); choose 1.5SMC62CA for AC lines or differential buses requiring dual-direction clamping.
What is the thermal resistance of the 1.5SMC62A-M3/9AT, and how does it affect PCB layout?
The 1.5SMC62A-M3/9AT has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on the recommended 0.31″ × 0.31″ (8.0 mm × 8.0 mm) copper pads per terminal. To maintain reliability under sustained power dissipation, PCB layout must allocate adequate copper area and consider thermal vias beneath the SMC footprint. Exceeding the 6.5 W steady-state rating without proper heat sinking risks junction temperature rise beyond the 150 °C maximum.
1.5SMC62A-M3/9AT 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:
- 1
- Bidirectional Channels:
- -
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
1.5SMC62A-M3/9AT FAQ
1.How can I place an order for 1.5SMC62A-M3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC62A-M3/9AT 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 1.5SMC62A-M3/9AT reliable?
The price and inventory of 1.5SMC62A-M3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC62A-M3/9AT is usually 5 days.
3.What payment methods are accepted for 1.5SMC62A-M3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC62A-M3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC62A-M3/9AT?
1.5SMC62A-M3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC62A-M3/9AT 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 1.5SMC62A-M3/9AT?
For technical support, including 1.5SMC62A-M3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC62A-M3/9AT requirements.
6.How does Aetrix verify that 1.5SMC62A-M3/9AT is sourced from the original manufacturer or authorized distributors?
All 1.5SMC62A-M3/9AT 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 1.5SMC62A-M3/9AT meets industry standards.
7.What is the process for return or replacement of 1.5SMC62A-M3/9AT?
All 1.5SMC62A-M3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC62A-M3/9AT, 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 1.5SMC62A-M3/9AT part is unused and in its original packaging.
Return procedure for 1.5SMC62A-M3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC62A-M3/9AT Tags
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