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Vishay General Semiconductor - Diodes Division SMBG7.5HE3/52
- Part No.:
- SMBG7.5HE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG7.5HE3/52.pdf
- Description:
- TVS DIODE 7.5VWM 14.3VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,684
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Product details
Overview
SMBG7.5HE3/52 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in DO-215AA (SMBG) package, designed for robust overvoltage protection of sensitive electronics. It features a 7.5 V stand-off voltage (VWM), 8.33–9.21 V breakdown voltage (VBR) at 1.0 mA test current, 12.9 V clamping voltage (VC) at 46.5 A peak pulse current, and 600 W peak pulse power rating with 10/1000 µs waveform - deployed on power rails and signal lines in automotive ECUs and industrial sensor interfaces.
For engineers reviewing the SMBG7.5HE3/52 datasheet, SMBG7.5HE3/52 pinout, SMBG7.5HE3/52 application, or SMBG7.5HE3/52 equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance (RθJA = 100 °C/W), RoHS-compliant matte tin plating, and JEDEC JESD201 Class 2 whisker resistance - all critical for automotive-grade ESD/surge co-design and long-term reliability validation.
Technical Context
This TVS diode operates as a unidirectional clamping device, leveraging a glass-passivated silicon junction to achieve sub-nanosecond response time and low incremental surge resistance. Its 7.5 V stand-off voltage enables compatibility with 5 V and 3.3 V logic supply domains while maintaining sufficient margin against normal operating transients.
The SMBG7.5HE3/52 is rated for 100 A non-repetitive forward surge current (IFSM, 8.3 ms half-sine), supports -55 °C to +150 °C junction temperature range, and meets MSL Level 1 per J-STD-020 with 260 °C lead-free reflow peak - confirming suitability for high-reliability surface-mount assembly in harsh-environment applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 7.5 V - maximum continuous reverse working voltage before clamping initiates; sets protection threshold for 5 V rail systems |
| VBR (min/max) | 8.33 V / 9.21 V at IT = 1.0 mA - ensures tight breakdown tolerance for predictable turn-on behavior under surge conditions |
| VC @ IPPM | 12.9 V at 46.5 A - clamping voltage during 600 W 10/1000 µs transient; limits downstream IC stress to safe levels |
| PPPM | 600 W - peak pulse power handling capacity; validates robustness against ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 surges |
| IFSM | 100 A - surge current rating for 8.3 ms half-sine waveform; supports high-energy inductive load switching events |
| TJ max | +150 °C - maximum junction temperature; enables operation in under-hood automotive environments |
| RθJA | 100 °C/W - thermal resistance junction-to-ambient on 0.2" × 0.2" copper pads; informs PCB thermal pad design requirements |
Pinout & Package
Package: DO-215AA (SMBG), surface-mount gull-wing configuration with cathode band marking on one end. Matte tin-plated leads comply with J-STD-002 and JESD22-B102 solderability standards. AEC-Q101 qualified and JEDEC JESD201 Class 2 whisker resistant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal (non-banded end) | Connected to protected circuit ground or low-side return path; defines current direction during clamping |
| Cathode | Reverse-biased clamping terminal (banded end) | Connected to protected line (e.g., 5 V rail); conducts avalanche current when VLINE exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive electronic modules requiring zero-failure field performance across temperature cycling and humidity exposure |
| Glass passivated junction | Ensures stable leakage current (<100 µA at VWM) and long-term reliability under repeated surge stress |
| 600 W peak pulse power | Supports compliance with ISO 16750-2 and IEC 61000-4-5 Level 3/4 surge immunity testing without derating |
| Low profile DO-215AA package | Enables automated placement in space-constrained layouts (max height 1.96 mm); compatible with standard SMT reflow profiles |
| RoHS-compliant & halogen-free | Fulfills JEDEC JS709A and EU Directive 2011/65/EU requirements for environmentally compliant manufacturing |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Clamping |
|---|---|
|
Use Scenario: Protecting 5 V microcontroller power inputs in engine control units exposed to load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between VCC and GND to shunt transients exceeding 7.5 V. Use Value: Limits voltage excursion to ≤12.9 V during 46.5 A surges, preventing latch-up or gate oxide damage in downstream logic ICs. |
Use Scenario: Safeguarding analog output lines of pressure sensors in factory automation PLC I/O modules. IC Role / Device Role / Timing Role: Series-connected TVS on 4–20 mA loop outputs to absorb ESD and inductive kickback. Use Value: Sub-ns response time and 12.9 V clamping prevent ADC input saturation and maintain measurement integrity during EMC events. |
| Consumer USB Port ESD Suppression | Telecom DC Power Input Protection |
|
Use Scenario: Secondary-level ESD protection on VBUS line of USB 2.0 host ports in set-top boxes and smart displays. IC Role / Device Role / Timing Role: Standoff-rated TVS placed after primary polymer PTC to handle >8 kV contact discharge per IEC 61000-4-2. Use Value: 7.5 V VWM avoids false triggering during 5.25 V nominal VBUS tolerance; 12.9 V VC protects USB PHY transceivers. |
Use Scenario: Surge suppression on -48 V DC telecom power feeds entering base station remote radio units. IC Role / Device Role / Timing Role: Unidirectional TVS configured anode-to-rail to clamp negative-going transients on negative supply lines. Use Value: 100 A IFSM rating withstands repetitive lightning-induced surges; RθJA = 100 °C/W enables thermal stability on minimal copper area. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ7.5AHE3/52 | Same VWM (7.5 V), but higher PPPM = 600 W (identical), yet lower VC = 12.0 V at 48.0 A; slightly tighter VBR tolerance (8.33–9.21 V vs. SMBG7.5HE3/52's 8.33–9.21 V - identical per spec sheet) | Identical application scope; preferred where lower clamping voltage is prioritized for ultra-sensitive 3.3 V logic interfaces | Select SMBJ7.5AHE3/52 if board layout allows SMB (DO-214AA) footprint and lower VC is required; SMBG offers better thermal dissipation via larger pad area. |
| SMCJ7.5AHE3/52 | Higher PPPM = 1500 W, same VWM/VBR, but larger DO-214AB (SMC) package; VC = 12.9 V at 114 A | Targeted at higher-energy surge environments (e.g., outdoor telecom cabinets, railway signaling) where 600 W is insufficient | Choose SMCJ7.5AHE3/52 only when system-level surge testing requires >600 W capability; requires PCB redesign due to larger footprint and thermal pad. |
Compared with SMBJ7.5AHE3/52 and SMCJ7.5AHE3/52, the SMBG7.5HE3/52 delivers optimal balance of 600 W surge handling, AEC-Q101 qualification, and DO-215AA thermal performance - making it the preferred choice for automotive and industrial applications where footprint efficiency and proven reliability under thermal cycling are critical.
Availability
SMBG7.5HE3/52 is available at Aetrix Electronics and suitable for automotive ECU designs, industrial sensor interface modules, and telecom power input stages requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for SMBG7.5HE3/52 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 and application-specific performance.
The SMBG series was engineered for high-reliability surface-mount transient suppression in automotive and industrial environments, combining AEC-Q101 qualification, robust surge ratings, and optimized thermal design in the DO-215AA package.
FAQ
What is the clamping voltage of SMBG7.5HE3/52 and how is it measured?
The SMBG7.5HE3/52 has a maximum clamping voltage (VC) of 12.9 V, measured at a peak pulse current (IPPM) of 46.5 A using a 10/1000 µs waveform. This value is guaranteed per Vishay's datasheet (Document Number: 88456, Rev. 12-Nov-12) and reflects the voltage across the device during standardized surge testing - critical for ensuring downstream ICs remain within absolute maximum ratings when SMBG7.5HE3/52 activates.
Is SMBG7.5HE3/52 suitable for automotive applications?
Yes, SMBG7.5HE3/52 is AEC-Q101 qualified and explicitly rated for automotive use per Vishay's documentation. Its -55 °C to +150 °C operating junction temperature range, MSL Level 1 moisture sensitivity, and JEDEC JESD201 Class 2 whisker resistance make it appropriate for engine control units, body electronics, and ADAS sensor modules where SMBG7.5HE3/52 provides certified surge immunity without derating.
What does the "HE3" suffix indicate in SMBG7.5HE3/52?
The "HE3" suffix denotes that SMBG7.5HE3/52 is RoHS-compliant and AEC-Q101 qualified, with matte tin-plated leads meeting J-STD-002 solderability and JESD22-B102 mechanical robustness standards. The "H" specifically identifies AEC-Q101 qualification, while "E3" confirms RoHS compliance - distinguishing it from commercial-grade "E3" variants like SMBG7.5A-E3/52 which lack automotive qualification.
How does SMBG7.5HE3/52 differ from SMBJ7.5AHE3/52?
SMBG7.5HE3/52 and SMBJ7.5AHE3/52 share identical electrical specs (VWM = 7.5 V, VBR = 8.33–9.21 V, VC = 12.9 V / 12.0 V respectively), but differ in package: SMBG uses DO-215AA (larger thermal pad area, RθJA = 100 °C/W), while SMBJ uses DO-214AA (smaller, RθJA = 110 °C/W). SMBG7.5HE3/52 is preferred where thermal performance and automotive qualification are jointly required.
What is the maximum reverse leakage current for SMBG7.5HE3/52 at rated VWM?
At its rated stand-off voltage (VWM) of 7.5 V and TA = 25 °C, the SMBG7.5HE3/52 exhibits a maximum reverse leakage current (ID) of 100 µA. This value is specified in the Vishay datasheet (88456, page 2) and ensures minimal power loss in standby mode while maintaining fast response during transient events - a key parameter for battery-powered SMBG7.5HE3/52 deployments.
SMBG7.5HE3/52 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-215AA, SMB Gull Wing
- 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):
- 42A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBG)
SMBG7.5HE3/52 FAQ
1.How can I place an order for SMBG7.5HE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG7.5HE3/52 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 SMBG7.5HE3/52 reliable?
The price and inventory of SMBG7.5HE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG7.5HE3/52 is usually 5 days.
3.What payment methods are accepted for SMBG7.5HE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG7.5HE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG7.5HE3/52?
SMBG7.5HE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG7.5HE3/52 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 SMBG7.5HE3/52?
For technical support, including SMBG7.5HE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG7.5HE3/52 requirements.
6.How does Aetrix verify that SMBG7.5HE3/52 is sourced from the original manufacturer or authorized distributors?
All SMBG7.5HE3/52 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 SMBG7.5HE3/52 meets industry standards.
7.What is the process for return or replacement of SMBG7.5HE3/52?
All SMBG7.5HE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG7.5HE3/52, 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 SMBG7.5HE3/52 part is unused and in its original packaging.
Return procedure for SMBG7.5HE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG7.5HE3/52 Tags
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