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Vishay General Semiconductor - Diodes Division 1.5SMC510A-E3/9AT
- Part No.:
- 1.5SMC510A-E3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC510A-E3/9AT.pdf
- Description:
- TVS DIODE 434VWM 698VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:2,166
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Product details
Overview
1.5SMC510A-E3/9AT 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), 434 V standoff voltage (VWM), and 698 V clamping voltage (VC) at 2.15 A peak pulse current. It protects power rails and signal lines in industrial motor drives and automotive ECUs against lightning-induced transients and inductive switching spikes.
For engineers reviewing the 1.5SMC510A-E3/9AT datasheet, 1.5SMC510A-E3/9AT pinout, 1.5SMC510A-E3/9AT application, or 1.5SMC510A-E3/9AT equivalent, this page delivers verified electrical parameters, thermal derating behavior, RoHS-compliant commercial-grade qualification, and real-world design implications for PCB-level transient suppression.
Technical Context
This TVS diode operates as a unidirectional clamping device with a cathode-band polarity marker, leveraging glass-passivated junction technology for stable breakdown and low incremental surge resistance. Its 1500 W peak pulse rating is defined under standardized 10/1000 μs waveform conditions with 0.01% duty cycle, and thermal performance is characterized by RθJA = 75 °C/W on recommended 8.0 mm × 8.0 mm copper pads.
The device exhibits a breakdown voltage (VBR) range of 485–535 V at 1.0 mA test current, with temperature coefficient of +0.110 %/°C - enabling predictable voltage drift over operating junction temperatures from –65 °C to +150 °C. It meets MSL Level 1 per J-STD-020 and supports lead-free reflow up to 260 °C peak.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 434 V - maximum continuous reverse voltage before significant leakage; defines safe operating margin below clamping threshold |
| VBR (Breakdown) | 485–535 V at 1.0 mA - precise voltage threshold where avalanche conduction initiates; ensures consistent turn-on across units |
| VC (Clamping) | 698 V at IPPM = 2.15 A - maximum voltage seen by protected circuit during full-rated surge; determines downstream component stress |
| PPPM | 1500 W (10/1000 μs) - energy-handling capacity for single transient events; enables robust protection against IEC 61000-4-5 Level 4 surges |
| RθJA | 75 °C/W - thermal resistance from junction to ambient on standard pad layout; informs board-level thermal management requirements |
| TJ max. | +150 °C - maximum allowable junction temperature; sets upper limit for sustained power dissipation and ambient operating range |
| Leakage (ID) | <1.0 μA at VWM - negligible standby current; avoids loading sensitive high-impedance circuits or battery-powered nodes |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, low-profile plastic case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Cathode identified by band marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction; connected to protected line's lower-potential side | Enables unidirectional clamping only when reverse-biased; must be tied to ground or return path for proper operation |
| Cathode | Current exit point during avalanche conduction; marked with band | Connected to the line being protected; establishes reference for clamping action above VWM |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power (10/1000 μs) | Supports IEC 61000-4-5 surge immunity testing without external series impedance in many DC power rail applications |
| Glass passivated chip junction | Ensures long-term stability of VBR and low parameter drift under thermal cycling and humidity exposure |
| MSL Level 1, 260 °C peak reflow | Compatible with standard lead-free SMT assembly processes without pre-baking or special handling |
| RoHS-compliant, commercial grade (E3 suffix) | Meets global environmental compliance requirements while maintaining cost-effective volume procurement |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (<1 ns rise time), improving protection fidelity |
Applications
| Industrial Motor Drives | Automotive Engine Control Units |
|---|---|
Use Scenario: Protection of 48 V auxiliary power rails against load dump and inductive kickback from solenoid valves and relays. IC Role / Device Role / Timing Role: Unidirectional TVS placed between supply rail and chassis ground to clamp transients exceeding 434 V. Use Value: Limits voltage excursion to ≤698 V during 2.15 A surges, preventing damage to MCU power inputs and gate drivers. |
Use Scenario: Safeguarding CAN FD transceiver power pins against ISO 7637-2 Pulse 5a (load dump) events. IC Role / Device Role / Timing Role: Standoff-clamp TVS on VCC input of transceiver IC, referenced to vehicle ground. Use Value: Maintains system uptime by absorbing 1500 W pulses without degradation, meeting AEC-Q101 reliability baseline. |
| Telecom Power Supplies | Renewable Energy Inverters |
Use Scenario: Secondary-side DC output protection in 48 V telecom rectifiers exposed to lightning-induced surges on distribution lines. IC Role / Device Role / Timing Role: Final-stage clamping device on +48 V bus before connector interface. Use Value: Provides <100 ns response to fast transients while sustaining <1 μA leakage at nominal 48 V, avoiding standby power loss. |
Use Scenario: DC-link overvoltage suppression in solar string inverters during grid fault recovery. IC Role / Device Role / Timing Role: Parallel-connected TVS across DC-link capacitor bank to limit transient overvoltage. Use Value: Handles repetitive 10/1000 μs surges up to 0.01% duty cycle without thermal runaway, validated to TJ = 150 °C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ510A | Lower peak power (600 W), same VWM/VC family but SMB package (smaller footprint, higher RθJA) | Preferred for space-constrained designs where 600 W suffices; not suitable for IEC 61000-4-5 Level 4 | Select when board area is critical and surge energy is ≤600 W; verify thermal margin with RθJA = 110 °C/W |
| 1.5KE510A | Through-hole TO-204AA (DO-41) package, identical electrical specs but higher mounting thermal resistance | Used in legacy through-hole assemblies or prototyping; lacks SMT automation compatibility | Choose only for manual assembly or backward compatibility; avoid in high-volume SMT production |
Compared with SMBJ510A and 1.5KE510A, the 1.5SMC510A-E3/9AT uniquely balances 1500 W surge capability, SMC package manufacturability, and commercial-grade RoHS compliance - making it optimal for automated production of industrial and automotive power systems requiring robust, repeatable transient immunity.
Availability
1.5SMC510A-E3/9AT is available at Aetrix Electronics and suitable for industrial motor drives, automotive engine control units, telecom power supplies, and renewable energy inverters requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for 1.5SMC510A-E3/9AT 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability, efficiency, and application-specific optimization.
The 1.5SMC Series targets high-energy transient suppression in harsh environments, delivering standardized TVS performance across 6.8 V to 540 V standoff ranges with focus on automotive, industrial, and telecom infrastructure robustness.
FAQ
What is the clamping voltage of the 1.5SMC510A-E3/9AT under full-rated surge current?
The 1.5SMC510A-E3/9AT has a maximum clamping voltage (VC) of 698 V at its rated peak pulse current (IPPM) of 2.15 A, measured using the standardized 10/1000 μs waveform. This value defines the highest voltage the protected circuit will experience during a full-power transient event, and it is guaranteed across the operating temperature range per the Vishay 88303 datasheet.
Is the 1.5SMC510A-E3/9AT suitable for automotive applications?
The 1.5SMC510A-E3/9AT is RoHS-compliant and qualified to commercial-grade specifications. While it shares the same die and core electrical characteristics as AEC-Q101-qualified variants (e.g., 1.5SMC510AHM3_B/I), the E3/9AT suffix denotes commercial grade only. For automotive use, engineers must validate system-level reliability independently or select the HM3_B-suffixed version explicitly qualified to AEC-Q101.
What does the "-E3/9AT" suffix indicate for the 1.5SMC510A-E3/9AT?
The "E3" suffix indicates RoHS-compliant, commercial-grade construction with matte tin-plated leads. The "/9AT" denotes packaging in 13-inch diameter plastic tape and reel, with a standard quantity of 3500 units per reel - optimized for high-volume SMT placement equipment. This differs from /57T (7-inch reel, 850 units) used in lower-volume or prototype builds.
How does thermal derating affect the 1.5SMC510A-E3/9AT's surge capability above 25 °C?
The 1.5SMC510A-E3/9AT's peak pulse power (PPPM) must be linearly derated above TA = 25 °C, following the curve in Figure 2 of the Vishay 88303 datasheet. At 75 °C ambient, PPPM drops to approximately 1125 W (75% of 1500 W); at 125 °C, it falls to ~560 W. Derating is based on junction-to-ambient thermal resistance (RθJA = 75 °C/W) and assumes the recommended 8.0 mm × 8.0 mm copper pad layout.
Can the 1.5SMC510A-E3/9AT be used in bidirectional configurations?
No - the 1.5SMC510A-E3/9AT is strictly unidirectional, as indicated by the "A" suffix (not "CA"). Bidirectional operation requires the CA variant (e.g., 1.5SMC510CA), which features symmetrical breakdown in both polarities. Using the 1.5SMC510A-E3/9AT in reverse-biased AC or floating applications risks permanent failure due to lack of reverse conduction capability.
1.5SMC510A-E3/9AT 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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 434V
- Voltage - Breakdown (Min):
- 485V
- Voltage - Clamping (Max) @ Ipp:
- 698V
- Current - Peak Pulse (10/1000µs):
- 2.15A
- 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)
1.5SMC510A-E3/9AT FAQ
1.How can I place an order for 1.5SMC510A-E3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC510A-E3/9AT 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 1.5SMC510A-E3/9AT reliable?
The price and inventory of 1.5SMC510A-E3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC510A-E3/9AT is usually 5 days.
3.What payment methods are accepted for 1.5SMC510A-E3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC510A-E3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC510A-E3/9AT?
1.5SMC510A-E3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC510A-E3/9AT 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 1.5SMC510A-E3/9AT?
For technical support, including 1.5SMC510A-E3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC510A-E3/9AT requirements.
6.How does Aetrix verify that 1.5SMC510A-E3/9AT is sourced from the original manufacturer or authorized distributors?
All 1.5SMC510A-E3/9AT 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 1.5SMC510A-E3/9AT meets industry standards.
7.What is the process for return or replacement of 1.5SMC510A-E3/9AT?
All 1.5SMC510A-E3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC510A-E3/9AT, 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 1.5SMC510A-E3/9AT part is unused and in its original packaging.
Return procedure for 1.5SMC510A-E3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC510A-E3/9AT Tags
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