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Vishay General Semiconductor - Diodes Division 1.5SMC480A-E3/57T
- Part No.:
- 1.5SMC480A-E3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC480A-E3/57T.pdf
- Description:
- TVS DIODE 408VWM 658VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:4,940
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Product details
Overview
1.5SMC480A-E3/57T from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode designed for high-energy surge protection in DC power lines and signal interfaces. It features a 480 V breakdown voltage (VBR = 456–504 V at IT = 1.0 mA), 408 V maximum clamping voltage (VC) at 2.28 A peak pulse current (IPPM), and 1500 W peak pulse power rating with 10/1000 μs waveform - deployed in industrial motor drives to protect IGBT gate drivers from inductive switching transients.
For engineers reviewing the 1.5SMC480A-E3/57T datasheet, 1.5SMC480A-E3/57T pinout, 1.5SMC480A-E3/57T application, or 1.5SMC480A-E3/57T equivalent, key selection criteria include standoff voltage (VWM = 408 V), clamping ratio (VC/VBR ≈ 1.15), thermal resistance (RθJA = 75 °C/W), AEC-Q101 qualification status, and SMC (DO-214AB) package compatibility with automated placement.
Technical Context
This unidirectional TVS operates as a voltage-clamped shunt protector: under normal bias it presents high impedance (>1 μA leakage at VWM), then rapidly avalanches when reverse voltage exceeds VBR, limiting transient energy by diverting surge current to ground. Its glass-passivated junction ensures stable breakdown and low incremental surge resistance.
The device is rated for 1500 W peak pulse power (10/1000 μs), supports 200 A non-repetitive forward surge current (8.3 ms half-sine), and maintains operation across -65 °C to +150 °C junction temperature range. It meets MSL Level 1 per J-STD-020 and is RoHS-compliant with matte tin-plated leads solderable per J-STD-002.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 456 V / 504 V at IT = 1.0 mA - defines precise avalanche initiation window for reliable overvoltage triggering |
| VWM | 408 V - maximum continuous reverse operating voltage before leakage exceeds 1.0 μA |
| VC @ IPPM | 658 V at IPPM = 2.28 A - clamping voltage during full-rated 1500 W transient, critical for downstream component survivability |
| PPPM | 1500 W - peak pulse power handling with 10/1000 μs waveform, enabling protection against lightning-induced surges per IEC 61000-4-5 |
| RθJA | 75 °C/W - junction-to-ambient thermal resistance on standard 0.31" × 0.31" copper pads, informs heatsinking requirements |
| IFSM | 200 A - peak forward surge current rating (8.3 ms half-sine), validates robustness against accidental polarity reversal events |
| TJ max. | +150 °C - maximum junction temperature, supports operation in enclosed industrial enclosures without active cooling |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, low-profile case with matte tin-plated leads; cathode indicated by band marking on unidirectional devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal under forward bias | Connected to protected line's lower-potential side (e.g., ground or return path) in unidirectional configuration |
| Cathode | Current exit terminal under forward bias; avalanche conduction terminal under reverse overvoltage | Banded end connected to higher-potential line (e.g., 400 V DC bus); clamps transients by shunting to anode/ground |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power (10/1000 μs) | Enables single-device protection against severe lightning surges (IEC 61000-4-5 Level 4) on 400 V systems |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (<1 ns response), improving clamping precision |
| Glass passivated junction | Ensures long-term parameter stability and reduced parameter drift under thermal cycling and humidity stress |
| MSL Level 1 (260 °C peak reflow) | Supports standard lead-free reflow assembly without preconditioning or special handling |
| RoHS-compliant, halogen-free option available | Meets environmental compliance requirements for industrial and automotive end equipment (e.g., EN 50581) |
Applications
| Industrial Motor Drives | Telecom Power Feeds |
|---|---|
|
Use Scenario: Protection of IGBT gate driver circuits from voltage spikes caused by rapid MOSFET/IGBT switching in 400 V DC bus inverters. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between gate and source, clamping gate-source voltage to safe levels (< ±20 V) during Miller-effect coupling. Use Value: Prevents gate oxide rupture by limiting transient overvoltage to 658 V at 2.28 A, compatible with 400 V system isolation margins. |
Use Scenario: Surge suppression on -48 V telecom power distribution boards exposed to induced lightning transients on long-haul feeder lines. IC Role / Device Role / Timing Role: Primary-level TVS on input stage, positioned upstream of DC/DC converters and hot-swap controllers. Use Value: Withstands 1500 W pulses while maintaining VWM = 408 V, allowing direct use on -48 V systems with 10:1 derating margin for common-mode surges. |
| Renewable Energy Inverters | Railway Signaling Interfaces |
|
Use Scenario: DC-link overvoltage protection in solar string inverters where PV array transients couple into MPPT controller inputs. IC Role / Device Role / Timing Role: Standoff-rated TVS across DC-link capacitors, triggered only during >456 V excursions to avoid false trips. Use Value: Tight VBR tolerance (±5%) ensures predictable activation timing, reducing nuisance tripping during normal MPPT ripple. |
Use Scenario: Protection of 110 V DC signaling lines in railway trackside cabinets subject to EFT/burst and surge per IEC 61000-4-4/4-5. IC Role / Device Role / Timing Role: Line-to-ground TVS on RS-485 or relay coil drive outputs interfacing with field sensors. Use Value: 658 V clamping voltage provides >2× margin above 110 V nominal, ensuring interface ICs survive repeated 1 kV/42 Ω surges. |
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 VBR range, SMB (DO-214AA) package - 30% smaller footprint, 40% lower surge capacity | Best suited for space-constrained, lower-energy applications (e.g., sensor node power rails), not 400 V bus protection | Select SMBJ480A only if layout area is critical and surge threat level is limited to IEC 61000-4-5 Level 2 (0.5 kV) |
| 1.5KE480A | Same electrical specs but axial-leaded DO-15 package - no SMT compatibility, higher RθJA (~100 °C/W), manual assembly required | Used in legacy through-hole designs or prototyping; unsuitable for automated high-volume production | Choose 1.5KE480A only for repair, retrofit, or low-volume applications where SMT infrastructure is unavailable |
Compared with SMBJ480A and 1.5KE480A, the 1.5SMC480A-E3/57T delivers optimal balance of 1500 W surge capability, SMC package manufacturability, and 408 V standoff - making it the preferred choice for new industrial 400 V DC designs requiring AEC-Q101-grade reliability and automated assembly.
Availability
1.5SMC480A-E3/57T is available at Aetrix Electronics and suitable for industrial motor drives, telecom power feeds, renewable energy inverters, and railway signaling interfaces requiring stable component supply across extended product lifecycles.
Supply support for 1.5SMC480A-E3/57T 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, rectifiers, TVS, and optoelectronics with emphasis on high-reliability, high-power, and automotive-qualified components.
The 1.5SMC Series was developed for robust, surface-mount transient suppression in harsh environments - targeting industrial automation, transportation, and energy infrastructure where sustained surge immunity and AEC-Q101 validation are mandatory.
FAQ
What is the standoff voltage (VWM) of the 1.5SMC480A-E3/57T?
The 1.5SMC480A-E3/57T has a maximum reverse standoff voltage (VWM) of 408 V. This is the highest DC or continuous reverse voltage the device can withstand without exceeding 1.0 μA leakage current. It ensures reliable blocking during normal operation while allowing precise coordination with upstream fusing and downstream IC voltage ratings in 400 V systems.
Is the 1.5SMC480A-E3/57T AEC-Q101 qualified?
No - the 1.5SMC480A-E3/57T uses the "E3" suffix, indicating RoHS-compliant commercial grade. AEC-Q101 qualification requires the "HE3" or "HM3" suffix with revision code (e.g., 1.5SMC480AHE3_B). The 1.5SMC480A-E3/57T is not tested or certified to AEC-Q101; for automotive applications, specify the HE3 variant.
What does the "/57T" suffix mean in 1.5SMC480A-E3/57T?
The "/57T" denotes packaging: 7-inch diameter plastic tape-and-reel with 850 units per reel. The "57T" code is Vishay's standard ordering designation for this reel size and orientation. It confirms the part is supplied in automated pick-and-place compatible format, verified for SMC (DO-214AB) footprint compatibility.
How does the clamping voltage (VC) of 1.5SMC480A-E3/57T compare to its breakdown voltage (VBR)?
The 1.5SMC480A-E3/57T has a VBR range of 456–504 V and a maximum clamping voltage VC of 658 V at IPPM = 2.28 A. This yields a clamping ratio (VC/VBRmin) of ~1.44 - typical for high-voltage TVS diodes - ensuring effective overvoltage limiting while maintaining sufficient margin above system operating voltage.
Can the 1.5SMC480A-E3/57T be used in bidirectional configurations?
No - the "A" suffix designates unidirectional operation. Bidirectional variants use the "CA" suffix (e.g., 1.5SMC480CA). The 1.5SMC480A-E3/57T conducts only in reverse avalanche mode; forward conduction is limited to 3.5 V at 100 A and is not intended for bidirectional clamping. Using it in AC or symmetrical surge paths will result in improper protection.
1.5SMC480A-E3/57T 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:
- Obsolete
- 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-E3/57T FAQ
1.How can I place an order for 1.5SMC480A-E3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC480A-E3/57T 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-E3/57T reliable?
The price and inventory of 1.5SMC480A-E3/57T 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-E3/57T is usually 5 days.
3.What payment methods are accepted for 1.5SMC480A-E3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC480A-E3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC480A-E3/57T?
1.5SMC480A-E3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC480A-E3/57T 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-E3/57T?
For technical support, including 1.5SMC480A-E3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC480A-E3/57T requirements.
6.How does Aetrix verify that 1.5SMC480A-E3/57T is sourced from the original manufacturer or authorized distributors?
All 1.5SMC480A-E3/57T 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-E3/57T meets industry standards.
7.What is the process for return or replacement of 1.5SMC480A-E3/57T?
All 1.5SMC480A-E3/57T units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC480A-E3/57T, 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-E3/57T part is unused and in its original packaging.
Return procedure for 1.5SMC480A-E3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC480A-E3/57T Tags
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ESD9B5.0ST5G
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DESD3V3E1BL-7B
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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