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Vishay General Semiconductor - Diodes Division 1.5SMC62CA-M3/9AT
- Part No.:
- 1.5SMC62CA-M3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC62CA-M3/9AT.pdf
- Description:
- TVS DIODE 53VWM 85VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:6,281
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Product details
Overview
1.5SMC62CA-M3/9AT from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode designed for robust overvoltage protection in power and signal 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 102 V at 17.6 A, and operates across –65 °C to +150 °C. It is widely deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the 1.5SMC62CA-M3/9AT datasheet, 1.5SMC62CA-M3/9AT pinout, 1.5SMC62CA-M3/9AT application, or 1.5SMC62CA-M3/9AT equivalent, this page delivers verified electrical parameters, package geometry, clamping behavior under surge conditions, thermal resistance data, and direct alternatives for ESD and lightning transient suppression in high-reliability designs.
Technical Context
The 1.5SMC62CA-M3/9AT implements an avalanche-based silicon junction structure optimized for fast response (<1 ns) to transient overvoltages. Its bidirectional symmetry enables identical clamping performance in both polarities, eliminating polarity concerns in AC-coupled or floating signal paths.
It is rated for 1500 W peak pulse power with a 10/1000 µs waveform at 0.01% duty cycle, and exhibits low incremental surge resistance (typical <1.5 Ω) to minimize voltage overshoot during high-current transients. Thermal resistance is 75 °C/W junction-to-ambient on standard 8 mm × 8 mm copper pads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 62 V - Maximum continuous reverse voltage before significant leakage; defines operating margin below clamping threshold. |
| VBR (Breakdown Voltage) | 68.9–75.1 V at 1 mA - Confirmed avalanche onset range; ensures reliable triggering without premature conduction. |
| VC (Clamping Voltage) | 102 V at 17.6 A - Peak voltage seen by protected circuit during full-rated 10/1000 µs surge; critical for downstream IC survivability. |
| PPPM (Peak Pulse Power) | 1500 W - Sustains standardized lightning/surge energy per IEEE C62.41; validates compliance with IEC 61000-4-5 Level 4. |
| ID (Reverse Leakage) | ≤1 µA at 62 V - Negligible standby current; avoids loading sensitive analog or low-power circuits. |
| TJ max | +150 °C - Enables use in under-hood automotive and industrial environments without derating at ambient ≤125 °C. |
| RθJA | 75 °C/W - Predicts junction temperature rise under DC bias; informs heatsinking requirements for sustained surge repetition. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, halogen-free, RoHS-compliant, MSL Level 1 (260 °C peak reflow). Dimensions: 7.11 mm × 6.22 mm × 2.62 mm (L × W × H); cathode band omitted (bidirectional device).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (negative half-cycle) | Conducts during negative surges; symmetric with Cathode for bidirectional clamping. |
| Cathode | Transient current entry (positive half-cycle) | Conducts during positive surges; electrically identical to Anode in CA-series devices. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Identical VBR, VC, and IPPM in both polarities - eliminates orientation sensitivity in PCB layout and simplifies design for AC or floating nodes. |
| 1500 W peak pulse rating | Validated per 10/1000 µs waveform - meets IEC 61000-4-5 surge immunity requirements for industrial and automotive end equipment. |
| Glass-passivated junction | Enhanced reliability and stable leakage over temperature/humidity - critical for long-term operation in harsh environments. |
| MSL Level 1 rating | Compatible with standard lead-free reflow profiles up to 260 °C - supports automated SMT assembly without moisture sensitivity concerns. |
| Halogen-free construction (M3 suffix) | Complies with IPC-4101D and JEDEC J-STD-609A Class 1 - satisfies environmental mandates for green electronics manufacturing. |
Applications
| Automotive Sensor Interface | Industrial PLC Analog Input |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and MEMS pressure sensors from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional TVS placed directly at connector entry point to shunt transients before signal conditioning circuitry. Use Value: Clamps 102 V at 17.6 A, ensuring downstream 5 V or 3.3 V interface ICs remain within absolute maximum ratings during 100 V/100 ms load dump events. |
Use Scenario: Safeguarding 4–20 mA current loop inputs against field wiring faults and induced lightning surges. IC Role / Device Role / Timing Role: Primary overvoltage clamp on input terminals, coordinated with series current-limiting resistor and secondary filtering. Use Value: Withstands repetitive 1500 W surges while maintaining sub-µA leakage at 62 V, preserving loop accuracy and zero-point stability. |
| Telecom Line Card Protection | Consumer USB Port ESD Suppression |
Use Scenario: Front-end protection for DSL/VDSL line drivers exposed to longitudinal surges on twisted-pair telecom lines. IC Role / Device Role / Timing Role: First-stage transient suppressor mounted adjacent to RJ-11 connector, preceding transformer and line driver IC. Use Value: Fast <1 ns response and symmetrical 102 V clamping limit stress on isolation transformers and differential receivers during multi-kV ring wave transients. |
Use Scenario: Secondary-level surge protection for USB 2.0 data lines and VBUS in set-top boxes and smart displays. IC Role / Device Role / Timing Role: Standoff-rated TVS bridging D+–D− and VBUS–GND to absorb coupled ESD and cable discharge events. Use Value: 62 V VWM prevents interference with 5 V VBUS signaling while clamping >8 kV contact ESD per IEC 61000-4-2 to safe levels for PHY transceivers. |
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), same VWM (64 V), larger SMB package (DO-214AA), higher RθJA (110 °C/W) | Less suitable for high-energy lightning surges; preferred where board space is constrained but surge severity is moderate (e.g., consumer USB). | Select SMBJ64CA only when 600 W rating suffices and footprint reduction is prioritized over surge margin. |
| 1.5KE62CA | Same VWM (62 V), identical 1500 W rating, but axial-leaded DO-15 package - not SMT-compatible | Requires through-hole assembly and manual rework; incompatible with automated SMT lines and high-density layouts. | Choose 1.5KE62CA only for prototyping, legacy repair, or non-SMT applications where leaded mounting is acceptable. |
Compared with SMBJ64CA and 1.5KE62CA, the 1.5SMC62CA-M3/9AT uniquely combines 1500 W SMT capability, bidirectional symmetry, halogen-free compliance, and industry-standard SMC footprint-making it optimal for volume automotive and industrial production where reliability, manufacturability, and surge margin are jointly critical.
Availability
1.5SMC62CA-M3/9AT is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC analog inputs, telecom line cards, and consumer USB port protection requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for 1.5SMC62CA-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, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The 1.5SMC Series targets high-energy transient suppression in automotive, industrial, and telecom infrastructure-designed for ruggedness, consistent clamping, and seamless integration into automated SMT processes.
FAQ
What is the clamping voltage of the 1.5SMC62CA-M3/9AT at its rated peak pulse current?
The 1.5SMC62CA-M3/9AT has a maximum clamping voltage (VC) of 102 V at 17.6 A peak pulse current (IPPM), measured with a 10/1000 µs waveform. This value is guaranteed across temperature and represents the upper voltage limit imposed on protected circuitry during worst-case surge events. The 1.5SMC62CA-M3/9AT maintains this clamping performance bidirectionally, making it suitable for AC-coupled or floating signal paths where polarity cannot be assumed.
Is the 1.5SMC62CA-M3/9AT suitable for automotive applications?
Yes-the 1.5SMC62CA-M3/9AT is halogen-free and RoHS-compliant (M3 suffix), and the base 1.5SMC62CA family is AEC-Q101 qualified when ordered with HE3 or HM3 suffixes. While the -M3/9AT variant itself is commercial-grade, its construction, thermal rating (TJ max = +150 °C), and surge capability align with under-hood and body-control module requirements. For certified automotive use, specify 1.5SMC62CAHM3_A/I or consult Vishay's qualified part list. The 1.5SMC62CA-M3/9AT remains widely used in automotive-tier-2 and industrial designs demanding equivalent robustness.
How does the bidirectional design of the 1.5SMC62CA-M3/9AT affect PCB layout?
The 1.5SMC62CA-M3/9AT has no polarity marking and identical electrical characteristics in both directions, so PCB layout requires no orientation check-Anode and Cathode pads are functionally interchangeable. This eliminates risk of misplacement during automated placement and simplifies routing for differential signals, AC power rails, or isolated communication lines. Unlike unidirectional TVS diodes, the 1.5SMC62CA-M3/9AT avoids reverse-bias failure modes in systems subject to voltage reversals or undefined ground references.
What is the thermal resistance of the 1.5SMC62CA-M3/9AT, and how does it impact power handling?
The 1.5SMC62CA-M3/9AT has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on 8.0 mm × 8.0 mm copper pads per terminal. This value determines steady-state temperature rise under DC bias or repetitive surges. For example, at 6.5 W continuous dissipation (its PD rating), junction temperature rises ~488 °C above ambient-hence PD applies only to short-duration or low-duty-cycle conditions. In practice, the 1.5SMC62CA-M3/9AT relies on its 1500 W pulse rating rather than DC power handling, and RθJA primarily informs layout decisions for thermal relief and pad sizing.
Does the 1.5SMC62CA-M3/9AT meet IEC 61000-4-5 surge immunity standards?
Yes-the 1.5SMC62CA-M3/9AT's 1500 W peak pulse power rating (10/1000 µs waveform) corresponds directly to the combination wave (1.2/50 µs voltage, 8/20 µs current) defined in IEC 61000-4-5. When applied with appropriate series impedance (e.g., 2 Ω source), it enables system-level compliance with Level 4 (4 kV line-to-earth, 2 kV line-to-line) for industrial environments. Its bidirectional clamping and low clamping voltage (102 V) ensure protected ICs remain within safe operating limits during standardized surge testing. The 1.5SMC62CA-M3/9AT is routinely selected for IEC 61000-4-5 front-end protection in PLCs and motor drives.
1.5SMC62CA-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:
- -
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
1.5SMC62CA-M3/9AT FAQ
1.How can I place an order for 1.5SMC62CA-M3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC62CA-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 1.5SMC62CA-M3/9AT reliable?
The price and inventory of 1.5SMC62CA-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 1.5SMC62CA-M3/9AT is usually 5 days.
3.What payment methods are accepted for 1.5SMC62CA-M3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC62CA-M3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC62CA-M3/9AT?
1.5SMC62CA-M3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC62CA-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 1.5SMC62CA-M3/9AT?
For technical support, including 1.5SMC62CA-M3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC62CA-M3/9AT requirements.
6.How does Aetrix verify that 1.5SMC62CA-M3/9AT is sourced from the original manufacturer or authorized distributors?
All 1.5SMC62CA-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 1.5SMC62CA-M3/9AT meets industry standards.
7.What is the process for return or replacement of 1.5SMC62CA-M3/9AT?
All 1.5SMC62CA-M3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC62CA-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 1.5SMC62CA-M3/9AT part is unused and in its original packaging.
Return procedure for 1.5SMC62CA-M3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC62CA-M3/9AT Tags
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