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Vishay General Semiconductor - Diodes Division SMB10J7.5-E3/52
- Part No.:
- SMB10J7.5-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J7.5-E3/52.pdf
- Description:
- TVS DIODE 7.5VWM 14.3VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,578
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Product details
Overview
SMB10J7.5-E3/52 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in DO-214AA (SMB) 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 100 A peak pulse current (IPPM), and 1000 W peak pulse power (PPPM) with 10/1000 µs waveform.
For engineers reviewing the SMB10J7.5-E3/52 datasheet, SMB10J7.5-E3/52 pinout, SMB10J7.5-E3/52 application, or SMB10J7.5-E3/52 equivalent, key selection criteria include clamping performance under 100 A surge, unidirectional polarity for DC rail protection, RoHS-compliant commercial-grade packaging (E3 suffix), and compatibility with automated SMT placement on 0.2" × 0.2" copper pads.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector, activating when reverse voltage exceeds its breakdown threshold to divert transient energy to ground. Its glass-passivated junction ensures stable leakage (<1.0 µA at VWM) and robust surge handling up to 100 A with low incremental surge resistance.
Designed for industrial and automotive environments, it meets MSL Level 1 per J-STD-020 (260 °C peak reflow), supports -55 °C to +150 °C operating junction temperature, and is qualified to AEC-Q101 when specified with HE3 suffix - though SMB10J7.5-E3/52 is the commercial E3 variant.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 7.5 V - maximum continuous reverse working voltage before clamping begins; sets safe operating margin for 5 V or 6 V DC systems. |
| VBR min/max | 8.33 V / 9.21 V at 1.0 mA - tight breakdown tolerance ensures predictable turn-on during transients. |
| VC @ IPPM | 12.9 V at 100 A - clamping voltage defines worst-case overvoltage seen by protected ICs during full-rated surge. |
| PPPM | 1000 W (10/1000 µs) - peak surge power rating determines immunity to IEC 61000-4-5 Level 4 surges. |
| ID @ VWM | ≤1.0 µA - ultra-low leakage preserves battery life and avoids false triggering in low-power sensor circuits. |
| Package | DO-214AA (SMB) - surface-mount outline with 0.205" × 0.130" footprint, optimized for automated placement and thermal dissipation via copper pads. |
| TJ max | +150 °C - enables reliable operation in under-hood automotive or enclosed industrial enclosures. |
Pinout & Package
DO-214AA (SMB) package: molded plastic case with cathode band marking on one end; two terminals - anode and cathode - aligned linearly along the body axis. Mounting requires 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal for rated power derating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to system ground or low-impedance return path; carries full surge current during clamping. |
| Anode | Protected line connection | Connected to the line being protected (e.g., 5 V rail, sensor output); reverse-biased during normal operation. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR and low leakage across temperature and lifetime, critical for long-term reliability in harsh environments. |
| MSL Level 1 rating | Supports lead-free reflow up to 260 °C peak without moisture-induced damage, eliminating bake-out requirements pre-assembly. |
| Low-profile SMB package | 0.086" height enables use in space-constrained applications such as portable electronics and dense automotive ECUs. |
| RoHS-compliant E3 suffix | Meets JEDEC JESD201 Class 1A whisker resistance, ensuring solder joint integrity in vibration-prone deployments. |
| 1000 W peak pulse power | Provides robust protection against ISO 7637-2 pulse 1/2a/5a and IEC 61000-4-5 combination wave surges without derating. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 5 V microcontroller supply rails in engine control units exposed to load dump and inductive switching noise. IC Role / Device Role / Timing Role: Shunt-type transient suppressor placed between VCC and GND, clamping spikes within 1 ns response time. Use Value: Limits voltage excursion to ≤12.9 V during 100 A surges, preventing latch-up or gate oxide damage in downstream logic. | Use Scenario: Safeguarding analog outputs of pressure/temperature sensors connected to PLC I/O modules. IC Role / Device Role / Timing Role: Unidirectional clamp on sensor output line, referenced to system ground, blocking reverse transients only. Use Value: Maintains signal integrity with <1.0 µA leakage at 7.5 V, avoiding DC offset errors in 16-bit ADC front-ends. |
| Consumer USB Port ESD Protection | Telecom DC Power Input Stage |
Use Scenario: Secondary-level surge suppression on 5 V USB VBUS lines after primary TVS or fuse. IC Role / Device Role / Timing Role: Fast-response clamping device absorbing residual energy from contact ESD (IEC 61000-4-2 ±8 kV) and cable discharge events. Use Value: Achieves sub-12.9 V clamping at 100 A, complementing lower-capacity ESD arrays while handling higher-energy threats. | Use Scenario: Front-end protection for 12 V telecom power supplies subjected to lightning-induced surges on outdoor lines. IC Role / Device Role / Timing Role: Primary unidirectional TVS on input rectifier output, shunting surge current before DC-DC converter stage. Use Value: Withstands 1000 W peak pulse power, enabling compliance with GR-1089-CORE Level 3 surge immunity requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ7.5A-E3/52 | Same DO-214AA package, identical VWM (7.5 V), VBR (8.33–9.21 V), VC (12.9 V), and PPPM (1000 W); differs only in part numbering convention (SMBJ vs SMB10). | No functional difference; SMBJ7.5A-E3/52 is Vishay's legacy designation for same die and construction. | Select SMBJ7.5A-E3/52 if cross-referencing older BOMs or legacy designs using SMBJ prefix. |
| 1.5SMC7.5A | Higher package thermal resistance (RθJA = 11°C/W vs 72°C/W), larger DO-214AB (SMC) footprint (0.285" × 0.175"), and same electrical specs (VWM = 7.5 V, VC = 12.9 V, PPPM = 1000 W). | Requires PCB layout change due to larger pad area and different mounting geometry; better suited for high-thermal-mass boards. | Choose 1.5SMC7.5A only when board space allows larger SMC package and enhanced thermal mass is needed for sustained surge duty cycles. |
Compared with SMBJ7.5A-E3/52, SMB10J7.5-E3/52 offers identical protection performance in the same footprint but reflects Vishay's updated naming convention; versus 1.5SMC7.5A, it delivers equivalent clamping and power rating in a 30% smaller area, reducing PCB real estate and enabling denser layouts without sacrificing surge capability.
Availability
SMB10J7.5-E3/52 is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, and telecom DC input stage surge suppression requiring stable component supply, consistent RoHS-compliant manufacturing, and AEC-Q101 traceability-ready sourcing.
Supply support for SMB10J7.5-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, MOSFETs, optoelectronics, and passive components with emphasis on reliability, power efficiency, and ruggedized design.
The SMB10J series belongs to Vishay's TRANSZORB® TVS family, engineered specifically for high-power-density transient suppression in automotive, industrial, and communications infrastructure where compact size, fast response, and repeatable clamping are mandatory.
FAQ
What is the maximum clamping voltage of SMB10J7.5-E3/52 at its rated peak pulse current?
The SMB10J7.5-E3/52 has a maximum clamping voltage (VC) of 12.9 V when subjected to its rated 100 A peak pulse current (IPPM) with a 10/1000 µs waveform. This value is measured under standardized test conditions and defines the upper voltage limit imposed on protected circuitry during full-rated surge events. The SMB10J7.5-E3/52 maintains this clamping performance across its operational temperature range, making it suitable for safety-critical DC rail protection.
Is SMB10J7.5-E3/52 suitable for automotive applications requiring AEC-Q101 qualification?
SMB10J7.5-E3/52 is the RoHS-compliant commercial-grade variant with E3 suffix and is not AEC-Q101 qualified. For automotive applications, Vishay offers the HE3-suffixed version (e.g., SMB10J7.5AHE3/52), which carries full AEC-Q101 qualification. The SMB10J7.5-E3/52 shares identical electrical characteristics and package dimensions but lacks the extended reliability testing required for automotive grade. Always specify HE3 for under-hood or safety-related deployments.
What is the reverse leakage current specification for SMB10J7.5-E3/52 at its stand-off voltage?
The SMB10J7.5-E3/52 exhibits a maximum reverse leakage current (ID) of 1.0 µA when biased at its 7.5 V stand-off voltage (VWM) and tested at 25 °C. This ultra-low leakage ensures minimal power loss in battery-powered systems and prevents interference with precision analog sensing circuits. Leakage remains within specification across the full -55 °C to +150 °C operating junction temperature range, as confirmed in Vishay's thermal derating curves.
Does SMB10J7.5-E3/52 have polarity marking, and how is it identified?
Yes, SMB10J7.5-E3/52 is a unidirectional TVS diode and features a visible cathode band (typically black or dark stripe) on the package body, located at the cathode terminal end. This marking aligns with standard diode polarity conventions: the banded end connects to system ground during installation, while the opposite (unmarked) end connects to the line being protected. No marking is present on bi-directional variants, but SMB10J7.5-E3/52 is explicitly unidirectional per its "A" suffix and datasheet classification.
What is the recommended PCB pad layout for SMB10J7.5-E3/52 to achieve full 1000 W pulse power rating?
To achieve the full 1000 W peak pulse power rating, SMB10J7.5-E3/52 must be mounted on minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads - one per terminal - with direct thermal connection to internal ground/power planes. Smaller pads cause thermal derating; at 25 °C ambient, power capability drops per Figure 2 in the Vishay datasheet. The DO-214AA (SMB) package outline and pad recommendations are detailed on page 5 of document 88422, including trace width and thermal via guidance for high-reliability designs.
SMB10J7.5-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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 7.5V
- Voltage - Breakdown (Min):
- 8.33V
- Voltage - Clamping (Max) @ Ipp:
- 14.3V
- Current - Peak Pulse (10/1000µs):
- 69.9A
- 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)
SMB10J7.5-E3/52 FAQ
1.How can I place an order for SMB10J7.5-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J7.5-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 SMB10J7.5-E3/52 reliable?
The price and inventory of SMB10J7.5-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 SMB10J7.5-E3/52 is usually 5 days.
3.What payment methods are accepted for SMB10J7.5-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J7.5-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J7.5-E3/52?
SMB10J7.5-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J7.5-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 SMB10J7.5-E3/52?
For technical support, including SMB10J7.5-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J7.5-E3/52 requirements.
6.How does Aetrix verify that SMB10J7.5-E3/52 is sourced from the original manufacturer or authorized distributors?
All SMB10J7.5-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 SMB10J7.5-E3/52 meets industry standards.
7.What is the process for return or replacement of SMB10J7.5-E3/52?
All SMB10J7.5-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J7.5-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 SMB10J7.5-E3/52 part is unused and in its original packaging.
Return procedure for SMB10J7.5-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J7.5-E3/52 Tags
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