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Vishay General Semiconductor - Diodes Division 1.5SMC480A-M3/57T
- Part No.:
- 1.5SMC480A-M3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC480A-M3/57T.pdf
- Description:
- TVS DIODE 408VWM 658VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:1,918
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Product details
Overview
1.5SMC480A-M3/57T 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), 408 V standoff voltage (VWM), and 658 V clamping voltage (VC) at 2.28 A peak pulse current. It protects power rails and signal lines in industrial motor drives and telecom infrastructure against lightning-induced transients.
For engineers reviewing the 1.5SMC480A-M3/57T datasheet, 1.5SMC480A-M3/57T pinout, 1.5SMC480A-M3/57T application, or 1.5SMC480A-M3/57T equivalent, this page delivers verified electrical specs, thermal derating behavior, halogen-free RoHS compliance, AEC-Q101 qualification status, and real-world clamping performance under repetitive surge conditions.
Technical Context
This TVS diode operates as a unidirectional clamp, leveraging an avalanche breakdown mechanism to divert transient energy away from sensitive downstream circuitry. Its glass-passivated junction ensures stable breakdown voltage (VBR = 456–504 V at 1 mA) and low incremental surge resistance, enabling fast response (<1 ns) and consistent clamping across temperature.
Thermal design relies on its RθJA of 75 °C/W and RθJL of 15 °C/W, requiring PCB copper pad areas of 8.0 mm × 8.0 mm per terminal for rated 1500 W pulse handling. The device is rated for TJ = –65 to +150 °C and meets MSL Level 1 (260 °C reflow peak).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 408 V - Maximum continuous reverse operating voltage before conduction begins; defines safe DC/AC rail margin. |
| VBR (Breakdown) | 456–504 V at 1 mA - Avalanche onset range; ensures predictable turn-on during overvoltage events. |
| VC (Clamping) | 658 V at IPPM = 2.28 A - Peak voltage seen by protected circuit during 10/1000 μs surge; determines stress on downstream ICs. |
| PPPM | 1500 W - Peak pulse power handling capability with 10/1000 μs waveform; supports IEC 61000-4-5 Level 4 surges. |
| ID (Leakage) | 1 μA max at VWM - Ultra-low reverse leakage preserves efficiency in high-impedance bias networks. |
| TJ max | +150 °C - Maximum junction temperature; enables operation in under-hood automotive and industrial enclosures. |
| Package | SMC (DO-214AB) - Standardized surface-mount outline with 7.75 mm × 6.22 mm footprint and 2.62 mm height; compatible with automated pick-and-place. |
Pinout & Package
SMC (DO-214AB) package with two terminals: cathode marked by a band on the body; anode unmarked. Designed for PCB mounting with 8.0 mm × 8.0 mm copper pads per terminal to meet thermal and pulse power ratings.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line; conducts surge current toward ground when VLINE exceeds VBR. |
| Anode | Reference node | Typically tied to system ground or low-impedance return path; completes clamping loop during overvoltage. |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power | Supports robust IEC 61000-4-5 surge immunity without external heatsinking under defined PCB layout. |
| Glass-passivated junction | Ensures long-term stability of VBR and low parameter drift across temperature and lifetime cycling. |
| Halogen-free & RoHS-compliant (M3 suffix) | Fulfills environmental compliance for global industrial and telecom equipment without compromising surge rating. |
| MSL Level 1 moisture sensitivity | Enables standard SMT reflow without baking; peak reflow temperature up to 260 °C supported. |
| AEC-Q101 qualified (B revision) | Validated for automotive power electronics applications including engine control modules and battery management systems. |
Applications
| Industrial Motor Drives | Telecom Power Supplies |
|---|---|
Use Scenario: Protection of DC bus inputs against switching transients from IGBT gate drive noise and regenerative braking spikes. IC Role / Device Role / Timing Role: Unidirectional TVS placed between +BUS and GND to clamp positive-going surges above 408 V. Use Value: Limits transient voltage to ≤658 V, preventing damage to 600 V-rated IGBT drivers and isolated gate supplies. |
Use Scenario: Input-stage surge suppression on AC/DC front-end rectifiers exposed to lightning-induced surges on primary-side mains. IC Role / Device Role / Timing Role: Standoff-rated TVS absorbing 10/1000 μs surges before upstream fuse or MOV activates. Use Value: Provides precise clamping at 658 V with <1 μA leakage, minimizing standby power loss while meeting UL 497B requirements. |
| Automotive Battery Management | Renewable Energy Inverters |
Use Scenario: Protection of 48 V battery monitoring circuits against load dump and jump-start transients. IC Role / Device Role / Timing Role: Unidirectional clamp on cell voltage sense lines referenced to chassis ground. Use Value: Withstands 200 A IFSM (8.3 ms half-sine), ensuring survivability during ISO 16750-2 load-dump pulses. |
Use Scenario: DC-link overvoltage suppression in solar string inverters subjected to grid fault recovery surges. IC Role / Device Role / Timing Role: High-VWM TVS on PV+ to GND path to absorb fast-rising transients from rapid grid disconnection. Use Value: 408 V VWM allows operation across full MPPT range (up to ~450 V), while 1500 W PPPM handles repeated surge events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ480A | Lower PPPM (600 W), same VWM (408 V), SMB package (smaller footprint, higher RθJA). | Limited to lower-energy surges (IEC 61000-4-5 Level 2); unsuitable for high-repetition-rate industrial environments. | Select when board space is constrained and surge threat level is moderate; verify thermal margin with reduced copper area. |
| 1.5KE480A | Through-hole DO-201 package, identical VWM/VC/PPPM, but no MSL Level 1 or AEC-Q101 qualification. | Not suitable for automated SMT production or automotive under-hood use; requires wave soldering. | Choose only for legacy through-hole designs or prototyping where reflow compatibility and automotive qualification are not required. |
Compared with SMBJ480A and 1.5KE480A, the 1.5SMC480A-M3/57T uniquely combines SMT manufacturability, 1500 W surge capacity, halogen-free compliance, and AEC-Q101 qualification-making it the preferred choice for volume production of automotive and industrial power systems requiring zero rework risk and long-term reliability.
Availability
1.5SMC480A-M3/57T is available at Aetrix Electronics and suitable for industrial motor drives, telecom power supplies, automotive battery management systems, and renewable energy inverters requiring stable component supply, halogen-free compliance, and AEC-Q101 validation.
Supply support for 1.5SMC480A-M3/57T 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability, power handling, and automotive-grade qualification.
The 1.5SMC Series was developed for high-power, surface-mount transient suppression in harsh environments-targeting industrial automation, telecom infrastructure, and automotive electrification where compact size, repeatable clamping, and long-term stability are critical.
FAQ
What is the maximum clamping voltage of the 1.5SMC480A-M3/57T under a 10/1000 μs surge?
The 1.5SMC480A-M3/57T has a maximum clamping voltage (VC) of 658 V at a peak pulse current (IPPM) of 2.28 A with a 10/1000 μs waveform. This value is measured per Figure 1 in the Vishay datasheet 88303 and defines the upper voltage limit imposed on protected circuitry during standardized surge events.
Is the 1.5SMC480A-M3/57T suitable for automotive applications?
Yes, the 1.5SMC480A-M3/57T is AEC-Q101 qualified (Revision B), making it suitable for automotive power electronics such as battery management systems and engine control units. Its halogen-free M3 construction, MSL Level 1 rating, and guaranteed operation from –65 °C to +150 °C support under-hood deployment.
What does the "M3" suffix indicate in 1.5SMC480A-M3/57T?
The "M3" suffix denotes halogen-free, RoHS-compliant construction per Vishay's material categorization standard. It confirms compliance with JEDEC J-STD-020 MSL Level 1, JESD 201 Class 2 whisker resistance, and UL 94 V-0 flammability-critical for industrial and automotive supply chain requirements.
How does the 1.5SMC480A-M3/57T differ from bidirectional variants like 1.5SMC480CA?
The 1.5SMC480A-M3/57T is unidirectional and features a cathode band for polarity-sensitive placement; it conducts only during positive surges relative to ground. In contrast, 1.5SMC480CA is bidirectional with symmetrical clamping in both directions and no polarity marking-used where AC-coupled or differential signal lines require protection.
What PCB layout guidance applies to the 1.5SMC480A-M3/57T for full 1500 W rating?
To achieve the full 1500 W peak pulse power rating, the 1.5SMC480A-M3/57T must be mounted on minimum 8.0 mm × 8.0 mm copper pads per terminal, as specified in Vishay datasheet 88303. Smaller pads reduce thermal dissipation and derate PPPM significantly-consult Figure 2 for temperature-based derating curves.
1.5SMC480A-M3/57T 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):
- 408V
- Voltage - Breakdown (Min):
- 456V
- Voltage - Clamping (Max) @ Ipp:
- 658V
- Current - Peak Pulse (10/1000µs):
- 2.28A
- 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)
1.5SMC480A-M3/57T FAQ
1.How can I place an order for 1.5SMC480A-M3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC480A-M3/57T 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 1.5SMC480A-M3/57T reliable?
The price and inventory of 1.5SMC480A-M3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC480A-M3/57T is usually 5 days.
3.What payment methods are accepted for 1.5SMC480A-M3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC480A-M3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC480A-M3/57T?
1.5SMC480A-M3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC480A-M3/57T 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 1.5SMC480A-M3/57T?
For technical support, including 1.5SMC480A-M3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC480A-M3/57T requirements.
6.How does Aetrix verify that 1.5SMC480A-M3/57T is sourced from the original manufacturer or authorized distributors?
All 1.5SMC480A-M3/57T 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 1.5SMC480A-M3/57T meets industry standards.
7.What is the process for return or replacement of 1.5SMC480A-M3/57T?
All 1.5SMC480A-M3/57T units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC480A-M3/57T, 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 1.5SMC480A-M3/57T part is unused and in its original packaging.
Return procedure for 1.5SMC480A-M3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC480A-M3/57T Tags
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