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Vishay General Semiconductor - Diodes Division 1.5SMC7.5A-M3/57T
- Part No.:
- 1.5SMC7.5A-M3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC7.5A-M3/57T.pdf
- Description:
- TVS DIODE 6.4VWM 11.3VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:2,132
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Product details
Overview
1.5SMC7.5A-M3/57T from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, designed for robust overvoltage protection of sensitive electronics. It features a 6.40 V stand-off voltage (VWM), 7.13–7.88 V breakdown voltage (VBR) at 10 mA, 11.3 V maximum clamping voltage (VC) at 133 A peak pulse current, and 1500 W peak pulse power capability with 10/1000 µs waveform - ideal for automotive sensor line and MOSFET gate protection against lightning-induced transients.
For engineers reviewing the 1.5SMC7.5A-M3/57T datasheet, 1.5SMC7.5A-M3/57T pinout, 1.5SMC7.5A-M3/57T application, or 1.5SMC7.5A-M3/57T equivalent, this page delivers verified electrical parameters, thermal derating behavior, polarity marking convention, halogen-free RoHS-compliant construction, and AEC-Q101 qualification status - all critical for ESD/surge protection design validation and automotive-grade BOM selection.
Technical Context
This unidirectional TVS diode operates by avalanche breakdown to clamp transient voltages above its VBR threshold while maintaining low dynamic impedance. Its glass-passivated junction ensures stable leakage performance and fast response time (<1 ns), enabling effective suppression of fast-rising ESD and switching surges.
The device is rated for 200 A non-repetitive forward surge current (IFSM) and exhibits a temperature coefficient of VBR of +0.061 %/°C. Thermal resistance is 75 °C/W (junction-to-ambient) on standard 8.0 mm × 8.0 mm copper pads, supporting reliable operation up to 150 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 6.40 V - Maximum continuous reverse operating voltage before significant leakage begins; sets safe margin below circuit operating rail. |
| VBR (Breakdown) | 7.13–7.88 V at 10 mA - Confirmed avalanche onset range; defines minimum clamping trigger point under standardized test conditions. |
| VC (Clamping) | 11.3 V at 133 A (10/1000 µs) - Measured peak voltage during worst-case surge; determines maximum stress imposed on protected IC or MOSFET. |
| PPPM | 1500 W - Peak pulse power handling capacity; enables protection against high-energy transients like ISO 7637-2 Pulse 1/2a/5a in automotive systems. |
| IPPM | 133 A - Peak pulse current rating at VC; directly correlates with surge immunity level when combined with PCB trace inductance and layout. |
| TJ max | +150 °C - Maximum junction temperature; supports operation in under-hood automotive environments and industrial enclosures without forced cooling. |
| Package | SMC (DO-214AB) - Standardized surface-mount outline with cathode band marking; compatible with automated pick-and-place and reflow soldering per J-STD-020 MSL Level 1. |
Pinout & Package
Package: SMC (DO-214AB), molded plastic case with matte tin-plated leads, UL 94 V-0 rated, halogen-free and RoHS-compliant (M3 suffix). Cathode marked by single band on body; anode is unmarked end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink node | Connected to protected signal or power rail; conducts avalanche current to ground during overvoltage events. |
| Anode (unbanded end) | Reference/return path | Typically tied to system ground or low-impedance return plane; completes clamping current path during surge. |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power | Enables compliance with IEC 61000-4-5 Level 4 (4 kV) and ISO 7637-2 Pulse 5a (75 V/300 ms) without external series impedance. |
| Low incremental surge resistance | Minimizes VC overshoot during fast transients, reducing risk of latch-up or gate oxide damage in downstream MOSFETs or logic ICs. |
| Halogen-free, RoHS-compliant (M3) | Meets automotive OEM environmental requirements (e.g., GMW3172, Ford WSS-M99P9999-A1) and simplifies end-of-life recycling. |
| AEC-Q101 qualified | Validated for automotive applications including engine control modules, ADAS sensors, and infotainment power rails per stress test protocol. |
| MSL Level 1 (260 °C peak) | Allows single-reflow assembly without moisture sensitivity concerns, eliminating bake-out steps in high-volume SMT production. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and inductive kickback in vehicle ECUs. IC Role / Device Role / Timing Role: Unidirectional clamping diode placed between signal line and chassis ground, triggered within <1 ns to limit voltage excursion. Use Value: Prevents permanent damage to 5 V or 3.3 V interface ICs by clamping transients to ≤11.3 V while sustaining 133 A surge current. |
Use Scenario: Safeguarding 24 V digital input modules in programmable logic controllers against field-wiring induced surges and relay contact bounce. IC Role / Device Role / Timing Role: Standoff protector across input terminals, absorbing energy from 10/1000 µs transients generated by solenoid de-energization. Use Value: Maintains functional integrity of optocoupler input stages by limiting reverse voltage to 6.40 V during normal operation and clamping to 11.3 V during faults. |
| Consumer Power Adapter Protection | MOSFET Gate Protection |
Use Scenario: Secondary-side overvoltage suppression in AC/DC adapters and USB PD chargers exposed to mains-borne transients and ESD events. IC Role / Device Role / Timing Role: Fast-response TVS placed across output capacitor or regulator input to shunt surge energy before it reaches LDO or DC-DC controller. Use Value: Ensures compliance with UL 62368-1 Annex D surge testing by limiting output voltage spikes to safe levels without affecting steady-state regulation. |
Use Scenario: Shielding N-channel MOSFET gates from Miller-induced voltage spikes during high-dV/dt switching in motor drivers and SMPS half-bridges. IC Role / Device Role / Timing Role: Low-capacitance unidirectional clamp between gate and source, activated only during overvoltage excursions beyond ±20 V. Use Value: Prevents gate oxide rupture by clamping gate-source voltage to ≤11.3 V while adding negligible capacitance (<100 pF) to high-speed switching nodes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ7.0A | Lower PPPM (600 W), higher VC (12.0 V at 50 A), SMB package (smaller footprint, lower thermal mass) | Less suitable for ISO 7637-2 Pulse 5a; better for space-constrained consumer ports with moderate surge exposure | Select when board area is limited and surge energy does not exceed 600 W; verify thermal derating on small pads. |
| 1.5KE7.5A | Through-hole DO-201 package, same VWM/VBR/VC, but slower thermal response and no MSL Level 1 rating | Not suitable for automated SMT lines; used in legacy industrial controls and repair scenarios requiring hand-soldering | Choose only for through-hole prototyping or replacement in existing through-hole designs; avoid for new automotive or high-volume SMT designs. |
Compared with 1.5SMC7.5A-M3/57T, SMBJ7.0A offers smaller size but reduced surge handling and higher clamping voltage, while 1.5KE7.5A provides identical electrical specs in a legacy through-hole form factor lacking modern SMT process compatibility and halogen-free certification.
Availability
1.5SMC7.5A-M3/57T is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, consumer power adapter secondary sides, and MOSFET gate protection circuits requiring stable component supply, halogen-free compliance, and AEC-Q101 qualification.
Supply support for 1.5SMC7.5A-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, rectifiers, TVS devices, and optoelectronics with emphasis on reliability, automotive qualification, and high-power handling.
The 1.5SMC Series was engineered specifically for surface-mount transient suppression in harsh environments - delivering high peak power density, low clamping ratio, and AEC-Q101 validation for automotive, industrial, and telecom infrastructure applications.
FAQ
What is the maximum clamping voltage of the 1.5SMC7.5A-M3/57T under standard test conditions?
The 1.5SMC7.5A-M3/57T has a maximum clamping voltage (VC) of 11.3 V when subjected to a 10/1000 µs waveform at 133 A peak pulse current. This value is measured per JEDEC standards and reflects the actual voltage seen by protected circuitry during worst-case surge events - critical for ensuring downstream ICs remain within absolute maximum ratings.
Is the 1.5SMC7.5A-M3/57T certified for automotive use?
Yes, the 1.5SMC7.5A-M3/57T is AEC-Q101 qualified, as confirmed by Vishay's documentation for the 1.5SMC series with "_A" suffix and M3 halogen-free construction. This qualification covers stress tests including HTGB, HTRB, TCT, and mechanical shock, making the 1.5SMC7.5A-M3/57T suitable for under-hood and cabin-mounted automotive electronics.
How does the M3 suffix affect the 1.5SMC7.5A-M3/57T compared to E3 versions?
The M3 suffix indicates halogen-free, RoHS-compliant construction with whisker-resistant matte tin plating meeting JESD 201 Class 2, whereas E3 denotes standard RoHS compliance without halogen-free assurance. Both meet MSL Level 1, but the 1.5SMC7.5A-M3/57T satisfies stricter environmental mandates such as BMW GS 95024 and VW TL 81315 for halogen content.
What is the polarity marking convention for the 1.5SMC7.5A-M3/57T?
The 1.5SMC7.5A-M3/57T uses a single cathode band on the body to denote the cathode terminal; the opposite end is the anode. This unidirectional configuration requires correct orientation during PCB layout - cathode must connect toward the protected line or rail, and anode to ground or reference potential - to ensure proper clamping action during reverse transients.
Can the 1.5SMC7.5A-M3/57T be used in bidirectional protection applications?
No - the 1.5SMC7.5A-M3/57T is strictly unidirectional. For bidirectional protection, Vishay specifies part numbers ending in "CA" (e.g., 1.5SMC7.5CA). Using the 1.5SMC7.5A-M3/57T in bidirectional configurations risks failure during positive-going transients due to lack of symmetrical breakdown characteristics.
1.5SMC7.5A-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):
- 6.4V
- Voltage - Breakdown (Min):
- 7.13V
- Voltage - Clamping (Max) @ Ipp:
- 11.3V
- Current - Peak Pulse (10/1000µs):
- 133A
- 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)
1.5SMC7.5A-M3/57T FAQ
1.How can I place an order for 1.5SMC7.5A-M3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC7.5A-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 1.5SMC7.5A-M3/57T reliable?
The price and inventory of 1.5SMC7.5A-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 1.5SMC7.5A-M3/57T is usually 5 days.
3.What payment methods are accepted for 1.5SMC7.5A-M3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC7.5A-M3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC7.5A-M3/57T?
1.5SMC7.5A-M3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC7.5A-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 1.5SMC7.5A-M3/57T?
For technical support, including 1.5SMC7.5A-M3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC7.5A-M3/57T requirements.
6.How does Aetrix verify that 1.5SMC7.5A-M3/57T is sourced from the original manufacturer or authorized distributors?
All 1.5SMC7.5A-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 1.5SMC7.5A-M3/57T meets industry standards.
7.What is the process for return or replacement of 1.5SMC7.5A-M3/57T?
All 1.5SMC7.5A-M3/57T units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC7.5A-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 1.5SMC7.5A-M3/57T part is unused and in its original packaging.
Return procedure for 1.5SMC7.5A-M3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC7.5A-M3/57T Tags
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Diodes Incorporated
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