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Vishay General Semiconductor - Diodes Division SMB10J7.5A-E3/52
- Part No.:
- SMB10J7.5A-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J7.5A-E3/52.pdf
- Description:
- TVS DIODE 7.5VWM 12.9VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,152
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Product details
Overview
SMB10J7.5A-E3/52 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for high-energy surge protection on DC power rails and signal lines. It features a 7.5 V stand-off voltage (VWM), 8.33–9.21 V breakdown voltage (VBR) at 1.0 mA, 12.9 V clamping voltage (VC) at 77.5 A peak pulse current (IPPM), and 1000 W peak pulse power (PPPM) with 10/1000 µs waveform - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the SMB10J7.5A-E3/52 datasheet, SMB10J7.5A-E3/52 pinout, SMB10J7.5A-E3/52 application, or SMB10J7.5A-E3/52 equivalent, key selection criteria include clamping performance under 77.5 A surge, AEC-Q101 qualification status, RoHS-compliant E3 suffix, and compatibility with automated SMT placement on 0.2" × 0.2" copper pads.
Technical Context
This unidirectional TVS diode operates as a voltage-clamped shunt protector, activating when transient voltage exceeds its 7.5 V stand-off level to divert surge current away from downstream ICs. Its glass-passivated junction ensures stable breakdown behavior and low leakage (<1.0 µA at VWM), while MSL Level 1 rating supports lead-free reflow up to 260 °C.
The device delivers 1000 W peak pulse power handling per 10/1000 µs waveform, with thermal resistance of 72 °C/W (junction-to-ambient) and 20 °C/W (junction-to-lead), enabling robust operation in ambient temperatures from –55 °C to +150 °C without derating below 25 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 7.5 V - maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 8.33 V / 9.21 V at 1.0 mA - tight breakdown tolerance ensures predictable turn-on threshold |
| VC @ IPPM | 12.9 V at 77.5 A - clamping voltage defines worst-case stress on protected circuit during surge |
| PPPM | 1000 W - peak surge energy absorption capability with standard 10/1000 µs test waveform |
| ID @ VWM | <1.0 µA - ultra-low reverse leakage preserves power rail integrity in standby mode |
| TJ max | +150 °C - enables use in under-hood automotive and high-temperature industrial environments |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling and HTRB |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile plastic case with matte tin-plated leads; polarity indicated by cathode band at one end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., GND or return path) in unidirectional configuration |
| Cathode | Reverse-biased clamping terminal | Connected to protected line (e.g., 12 V rail or sensor output); color band marks this end |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR over lifetime and improved humidity resistance vs. epoxy-passivated alternatives |
| MSL Level 1 rating | Supports single-reflow lead-free assembly at 260 °C peak without moisture-induced damage |
| AEC-Q101 qualification | Validated for automotive applications including engine control units and ADAS sensor modules |
| Low incremental surge resistance | Minimizes voltage overshoot during fast transients, improving protection margin for sensitive MOSFETs and MCUs |
| RoHS-compliant E3 suffix | Meets EU RoHS Directive 2011/65/EU with no restricted substances above threshold limits |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load-dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Shunt clamping element placed between signal line and ground, activated within nanoseconds of overvoltage event. Use Value: Limits transient voltage to ≤12.9 V during 77.5 A surges, preventing latch-up or gate oxide damage in connected transceivers. | Use Scenario: Safeguarding digital input channels of programmable logic controllers against field-wiring induced surges and ESD events. IC Role / Device Role / Timing Role: Standby-mode protector across 24 V DC input terminals, responding to >7.5 V excursions with sub-ns latency. Use Value: Maintains <1.0 µA leakage at nominal 24 V operation while surviving repeated 1000 W surges per IEC 61000-4-5. |
| DC Power Rail Protection | Consumer Device USB Port Protection |
Use Scenario: Secondary overvoltage clamp on 5–12 V DC power distribution networks in embedded systems after primary DC/DC regulation. IC Role / Device Role / Timing Role: Fast-acting crowbar alternative that clamps rather than shorts, preserving system uptime during transient events. Use Value: Absorbs up to 1000 W of surge energy without failure, enabling compliance with UL 62368-1 surge immunity requirements. | Use Scenario: Reverse-polarity and ESD protection on VBUS lines of USB 2.0 ports in portable audio and IoT hubs. IC Role / Device Role / Timing Role: Unidirectional shunt limiter referenced to ground, placed upstream of USB switch ICs. Use Value: Clamps 8 kV contact ESD (IEC 61000-4-2) to <13 V, preventing damage to USB PHY and controller ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ7.5A-E3/52 | Same SMB package, identical VWM/VBR/VC specs, but rated for 600 W PPPM (vs. 1000 W) | Limited to lower-energy surge environments (e.g., consumer USB, non-automotive sensors) | Select SMB10J7.5A-E3/52 where full 1000 W IEC 61000-4-5 Level 4 immunity is required. |
| SMCJ7.5A-E3/52 | Same electrical specs but in larger SMC (DO-214AB) package with higher thermal mass and 1500 W PPPM rating | Used where board space allows and higher surge margin or extended thermal endurance is needed | Choose SMB10J7.5A-E3/52 when footprint constraints favor SMB over SMC and 1000 W suffices. |
Compared with SMBJ7.5A-E3/52 and SMCJ7.5A-E3/52, SMB10J7.5A-E3/52 delivers 67% higher peak power than SMBJ while maintaining identical PCB footprint and mounting process - making it optimal for space-constrained automotive and industrial designs requiring full 1000 W surge handling.
Availability
SMB10J7.5A-E3/52 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and DC power rail protection requiring stable component supply, AEC-Q101 validation, and RoHS-compliant manufacturing.
Supply support for SMB10J7.5A-E3/52 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, MOSFETs, and protection devices with emphasis on reliability and application-specific performance.
The SMB10J series belongs to Vishay's TRANSZORB® TVS portfolio, engineered for high-power-density transient suppression in automotive, industrial, and communications infrastructure where compact size and AEC-Q101 compliance are mandatory.
FAQ
What is the clamping voltage of SMB10J7.5A-E3/52 at its rated peak pulse current?
The SMB10J7.5A-E3/52 has a maximum clamping voltage (VC) of 12.9 V when subjected to its specified peak pulse current (IPPM) of 77.5 A using the 10/1000 µs waveform. This value is measured under standardized test conditions per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on the protected circuit during surge events.
Is SMB10J7.5A-E3/52 qualified for automotive applications?
Yes, SMB10J7.5A-E3/52 is AEC-Q101 qualified, having passed stress tests including high-temperature reverse bias, temperature cycling, and unbiased highly accelerated stress testing. Its E3 suffix denotes RoHS-compliant commercial grade, and the device is explicitly listed in Vishay's AEC-Q101 qualified product matrix for use in automotive ECUs and sensor modules.
What is the thermal resistance of SMB10J7.5A-E3/52 and how does it affect layout design?
SMB10J7.5A-E3/52 has a typical junction-to-ambient thermal resistance (RθJA) of 72 °C/W and junction-to-lead (RθJL) of 20 °C/W. To maintain safe operation at full 1000 W surge rating, the PCB must use minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal - as specified in Vishay's recommended pad layout - to achieve effective heat dissipation during transient events.
How does the SMB10J7.5A-E3/52 differ from bidirectional variants like SMB10J7.5CA-E3/52?
The SMB10J7.5A-E3/52 is unidirectional with cathode-marked polarity and 1000 W PPPM rating, whereas SMB10J7.5CA-E3/52 is bidirectional (no polarity marking) with 800 W PPPM and symmetric breakdown in both directions. The unidirectional version offers higher surge power and lower clamping voltage in forward conduction mode, making it preferred for DC rail protection where polarity is fixed.
What packaging format is supplied for SMB10J7.5A-E3/52 and what is its reel quantity?
SMB10J7.5A-E3/52 is supplied in 7" diameter plastic tape and reel format with a base quantity of 750 units per reel (package code /52). The device uses industry-standard EIA-481-D compliant carrier tape, compatible with high-speed pick-and-place equipment, and meets J-STD-002 and JESD 22-B102 solderability requirements.
SMB10J7.5A-E3/52 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 7.5V
- Voltage - Breakdown (Min):
- 8.33V
- Voltage - Clamping (Max) @ Ipp:
- 12.9V
- Current - Peak Pulse (10/1000µs):
- 77.5A
- Power - Peak Pulse:
- 1000W (1kW)
- 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-214AA (SMB)
SMB10J7.5A-E3/52 FAQ
1.How can I place an order for SMB10J7.5A-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J7.5A-E3/52 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 SMB10J7.5A-E3/52 reliable?
The price and inventory of SMB10J7.5A-E3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB10J7.5A-E3/52 is usually 5 days.
3.What payment methods are accepted for SMB10J7.5A-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J7.5A-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J7.5A-E3/52?
SMB10J7.5A-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J7.5A-E3/52 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 SMB10J7.5A-E3/52?
For technical support, including SMB10J7.5A-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J7.5A-E3/52 requirements.
6.How does Aetrix verify that SMB10J7.5A-E3/52 is sourced from the original manufacturer or authorized distributors?
All SMB10J7.5A-E3/52 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 SMB10J7.5A-E3/52 meets industry standards.
7.What is the process for return or replacement of SMB10J7.5A-E3/52?
All SMB10J7.5A-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J7.5A-E3/52, 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 SMB10J7.5A-E3/52 part is unused and in its original packaging.
Return procedure for SMB10J7.5A-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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