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Vishay General Semiconductor - Diodes Division SMCG75-E3/57T
- Part No.:
- SMCG75-E3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG75-E3/57T.pdf
- Description:
- TVS DIODE 75VWM 134VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,448
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Product details
Overview
SMCG75-E3/57T from Vishay General Semiconductor is a bi-directional surface-mount Transient Voltage Suppressor (TVS) in DO-215AB (SMCG) package, designed for clamping voltage transients on signal and power lines. It features a 75 V stand-off voltage (VWM), 121 V maximum clamping voltage (VC) at 12.4 A peak pulse current (IPPM), and 1500 W peak pulse power (PPPM) with 10/1000 µs waveform - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the SMCG75-E3/57T datasheet, SMCG75-E3/57T pinout, SMCG75-E3/57T application, or SMCG75-E3/57T equivalent, key selection criteria include bi-directional clamping capability, AEC-Q101 qualification, MSL Level 1 moisture sensitivity, and compatibility with automated SMT assembly on 8.0 mm × 8.0 mm copper pads.
Technical Context
The SMCG75-E3/57T operates as a bi-directional avalanche diode, leveraging glass-passivated junction technology to achieve sub-nanosecond response time and low incremental surge resistance. Its symmetrical breakdown behavior ensures identical clamping in both polarities, with VBR min/max of 83.3 V / 92.1 V at 1.0 mA test current.
Thermal performance is defined by RθJA = 75 °C/W and RθJL = 15 °C/W, enabling reliable operation up to TJ = +150 °C. The device meets UL 94 V-0 flammability rating and JESD201 Class 1A whisker resistance per matte tin-plated leads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 75 V - Maximum continuous reverse working voltage before clamping initiates; defines safe operating margin below breakdown. |
| VBR (Breakdown Voltage) | 83.3 V min / 92.1 V max at 1.0 mA - Ensures consistent avalanche conduction onset across production lots. |
| VC (Clamping Voltage) | 121 V at IPPM = 12.4 A (10/1000 µs) - Limits transient-induced stress on downstream ICs during surge events. |
| PPPM (Peak Pulse Power) | 1500 W - Sustains high-energy transients such as ISO 7637-2 pulse 5a without failure. |
| ID (Reverse Leakage) | 1.0 µA max at VWM - Minimizes standby power loss and avoids false triggering in low-current circuits. |
| TJ Range | –55 °C to +150 °C - Supports under-hood automotive and industrial environments without derating. |
Pinout & Package
Package: DO-215AB (SMCG), surface-mount gull-wing leaded case with no polarity marking for bi-directional configuration. Molding compound complies with UL 94 V-0; terminals are matte tin-plated per J-STD-002 and JESD22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bi-directional transient conduction path | No polarity marking required; terminals interchangeable - enables layout flexibility and eliminates orientation errors in automated placement. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - suitable for engine control and ADAS sensor protection. |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without baking - reduces manufacturing overhead and avoids moisture-related popcorning. |
| Glass-passivated junction | Enhances long-term stability and surge endurance versus epoxy-passivated alternatives - critical for field-deployed industrial equipment. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., EFT bursts), improving protection margin for 3.3 V/5 V logic interfaces. |
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 switching spikes in vehicle ECUs. IC Role / Device Role / Timing Role: Bi-directional clamping element placed directly at connector entry point to shunt transients before reaching signal conditioning circuitry. Use Value: Enables compliance with ISO 16750-2 pulse 5a (load dump) and ISO 7637-3 (EFT) without additional filtering components. |
Use Scenario: Safeguarding digital input modules in programmable logic controllers against surges induced by relay coil de-energization and motor drive noise. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 24 V DC input channels, mounted adjacent to terminal block to minimize trace inductance. Use Value: Maintains functional safety integrity by limiting transient voltage to <121 V, preventing latch-up or permanent damage to microcontroller GPIOs. |
| Telecom Line Interface | Consumer Appliance Motor Control |
Use Scenario: Shielding Ethernet PHYs and RS-485 transceivers in base station backhaul units from lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Secondary-level TVS staged after gas discharge tube (GDT) front-end, providing fast-response clamping for residual energy. Use Value: Delivers <1 ns response time and 1500 W surge handling to meet ITU-T K.21 basic protection requirements. |
Use Scenario: Suppressing commutation spikes from brushed DC motors in washing machines and HVAC blowers connected to MCU-based motor drivers. IC Role / Device Role / Timing Role: Bidirectional clamp across motor terminals or H-bridge outputs to prevent voltage reversal damage to MOSFETs and gate drivers. Use Value: Withstands repetitive 200 A IFSM surges (uni-directional reference) and maintains stable VWM over 1000+ surge cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ75A-E3/57T | DO-214AC (SMA) package; lower PPPM (400 W); unidirectional only; VBR = 83.3–92.1 V same range. | Limited to single-polarity circuits; requires cathode orientation; less robust for automotive load dump. | Select when board space allows larger footprint and uni-directional protection suffices with lower cost. |
| SMCJ75CA-E3/57T | DO-214AB (SMC) package; higher PPPM (1500 W same); identical bi-directional specs; slightly higher RθJA (85 °C/W vs. 75). | Same clamping performance but larger body; may require PCB redesign due to 7.11 mm × 6.22 mm vs. SMCG's 7.11 mm × 5.59 mm. | Choose when existing SMC footprint is standardized and thermal margin permits higher junction rise. |
Compared with SMAJ75A-E3/57T and SMCJ75CA-E3/57T, the SMCG75-E3/57T offers optimal balance of bi-directional capability, AEC-Q101 qualification, compact DO-215AB footprint, and industry-leading thermal resistance - making it preferred for space-constrained automotive and industrial designs requiring zero-orientation assembly.
Availability
SMCG75-E3/57T is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom line protection, and consumer appliance motor control requiring stable component supply and full traceability.
Supply support for SMCG75-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, and protection devices with emphasis on reliability, efficiency, and application-specific validation.
The SMCG series was engineered specifically for high-reliability transient suppression in automotive and industrial environments - prioritizing AEC-Q101 compliance, low-profile SMT compatibility, and robust surge endurance.
FAQ
What is the clamping voltage of SMCG75-E3/57T at its rated peak pulse current?
The SMCG75-E3/57T has a maximum clamping voltage (VC) of 121 V at 12.4 A peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value is measured with the device mounted on 8.0 mm × 8.0 mm copper pads per JEDEC guidelines, ensuring repeatable thermal conditions for design validation.
Is SMCG75-E3/57T suitable for automotive applications?
Yes, SMCG75-E3/57T is AEC-Q101 qualified and rated for operating junction temperatures from –55 °C to +150 °C. Its bi-directional architecture, low leakage (<1.0 µA), and robust 1500 W surge rating make it appropriate for protecting CAN/LIN buses, sensor inputs, and power supplies in automotive ECUs and ADAS systems.
Does SMCG75-E3/57T have polarity markings?
No, SMCG75-E3/57T is a bi-directional TVS and carries no polarity marking on the package. The DO-215AB (SMCG) case is symmetrical, and both terminals function identically - eliminating orientation errors during automated placement and simplifying PCB layout.
What is the moisture sensitivity level (MSL) of SMCG75-E3/57T?
The SMCG75-E3/57T is rated MSL Level 1 per J-STD-020, with a maximum lead-free reflow peak temperature of 260 °C. This allows indefinite floor life without dry-packaging or baking, supporting seamless integration into standard SMT assembly lines.
How does SMCG75-E3/57T differ from SMCG75A-E3/57T?
The "CA" suffix in SMCG75CA-E3/57T (not present in SMCG75-E3/57T) explicitly denotes bi-directional configuration. However, per Vishay's ordering nomenclature and datasheet Table 1, SMCG75-E3/57T is functionally identical to SMCG75CA-E3/57T - both are bi-directional, share identical VWM, VBR, VC, and PPPM specs, and use the same DO-215AB package.
SMCG75-E3/57T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-215AB, SMC Gull Wing
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 75V
- Voltage - Breakdown (Min):
- 83.3V
- Voltage - Clamping (Max) @ Ipp:
- 134V
- Current - Peak Pulse (10/1000µs):
- 11.2A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCG)
SMCG75-E3/57T FAQ
1.How can I place an order for SMCG75-E3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG75-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 SMCG75-E3/57T reliable?
The price and inventory of SMCG75-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 SMCG75-E3/57T is usually 5 days.
3.What payment methods are accepted for SMCG75-E3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG75-E3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG75-E3/57T?
SMCG75-E3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG75-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 SMCG75-E3/57T?
For technical support, including SMCG75-E3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG75-E3/57T requirements.
6.How does Aetrix verify that SMCG75-E3/57T is sourced from the original manufacturer or authorized distributors?
All SMCG75-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 SMCG75-E3/57T meets industry standards.
7.What is the process for return or replacement of SMCG75-E3/57T?
All SMCG75-E3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCG75-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 SMCG75-E3/57T part is unused and in its original packaging.
Return procedure for SMCG75-E3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCG75-E3/57T Tags
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