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Vishay General Semiconductor - Diodes Division SMB10J7.5AHE3/5B
- Part No.:
- SMB10J7.5AHE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J7.5AHE3/5B.pdf
- Description:
- TVS DIODE 7.5VWM 12.9VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,297
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Product details
Overview
SMB10J7.5AHE3/5B 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 100 A peak pulse current (IPPM), and 1000 W peak pulse power (PPPM) with 10/1000 µs waveform.
For engineers reviewing the SMB10J7.5AHE3/5B datasheet, SMB10J7.5AHE3/5B pinout, SMB10J7.5AHE3/5B application, or SMB10J7.5AHE3/5B equivalent, key selection criteria include clamping performance under automotive-grade surge conditions, AEC-Q101 qualification status, thermal resistance (RθJA = 72 °C/W), and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates as a shunt-clamping device that remains high-impedance below VWM (7.5 V) and rapidly transitions to low-impedance conduction above VBR to limit transient overvoltages. Its glass-passivated junction ensures stable leakage (<1.0 µA at VWM) and repeatable breakdown behavior across temperature (-55 °C to +150 °C).
The SMB10J7.5AHE3/5B is rated for 100 A peak pulse current (IPPM) under 10/1000 µs waveform, with 12.9 V clamping voltage - delivering low incremental surge resistance and fast response time (<1 ns). It meets MSL Level 1 per J-STD-020 and is AEC-Q101 qualified for automotive use.
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 - precise breakdown threshold ensuring reliable turn-on margin |
| VC @ IPPM | 12.9 V at 100 A - clamping voltage defines worst-case overvoltage seen by protected IC or MOSFET |
| PPPM | 1000 W (10/1000 µs) - energy-handling capability for IEC 61000-4-5 Level 4 surges |
| ID @ VWM | <1.0 µA - ultra-low leakage preserves battery life and signal integrity in always-on circuits |
| TJ max | +150 °C - enables operation in under-hood automotive environments and industrial enclosures |
| RθJA | 72 °C/W - thermal resistance determines required PCB copper area for sustained surge duty |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002. Cathode indicated by color band; polarity critical for unidirectional operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or lowest potential node; completes clamping path during transients |
| Cathode | High-side surge input terminal | Connected to protected line (e.g., 12 V rail or sensor output); absorbs positive-going surges |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and ADAS sensor interfaces |
| Glass passivated junction | Ensures long-term reliability and stable electrical parameters under thermal cycling and humidity |
| MSL Level 1 rating | Allows unlimited floor life and reflow at peak 260 °C without preconditioning |
| Low profile SMB package | Enables high-density PCB layouts and compatibility with standard SMT pick-and-place equipment |
| 1000 W peak pulse power | Supports robust protection against ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 surges |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V supply lines in body control modules against load dump and inductive switching transients. IC Role / Device Role / Timing Role: Shunt-clamping TVS placed between power rail and chassis ground to clamp surges up to 1000 W. Use Value: Limits voltage to ≤12.9 V during 100 A transients, preventing damage to downstream PMICs and microcontrollers. | Use Scenario: Safeguarding analog outputs of pressure or temperature sensors connected to PLC inputs. IC Role / Device Role / Timing Role: Unidirectional TVS on sensor output line to suppress ESD and cable discharge events. Use Value: Sub-µA leakage preserves measurement accuracy; 12.9 V clamping protects 24 V-tolerant ADC front-ends. |
| Consumer USB Power Delivery Protection | Telecom DC Feeder Line Protection |
Use Scenario: Secondary overvoltage protection on 5 V/9 V/15 V USB PD bus after primary DC-DC regulation. IC Role / Device Role / Timing Role: Standoff-rated TVS absorbing fast-rising transients from hot-plug or adapter faults. Use Value: 7.5 V VWM allows clean operation under nominal PD voltages; 12.9 V VC prevents latch-up in USB controller ICs. | Use Scenario: Surge suppression on -48 V telecom DC feeder lines exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Unidirectional TVS referenced to system ground, clamping negative-going transients on powered lines. Use Value: 1000 W rating handles IEC 61000-4-5 Combination Wave (10/700 µs) surges common in central office environments. |
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 VWM/VBR/VC specs; RoHS-compliant commercial grade (not AEC-Q101 qualified) | Lacks automotive qualification; suitable for industrial/commercial designs without automotive certification requirements | Select when AEC-Q101 is not mandated and cost optimization is prioritized |
| 1.5SMC7.5A | Higher RθJA (100 °C/W), larger SMC package, same 1000 W rating but lower IPPM (100 A vs. SMBJ's 100 A - identical) | Requires more PCB area; less suitable for space-constrained automotive modules | Choose only if legacy SMC footprint must be retained or higher thermal mass is needed for repetitive surges |
Compared with SMBJ7.5A-E3/52 and 1.5SMC7.5A, the SMB10J7.5AHE3/5B uniquely combines AEC-Q101 qualification, SMB footprint, and 1000 W clamping in a single low-profile package - making it the preferred choice for new automotive electronics where qualification, size, and performance are jointly constrained.
Availability
SMB10J7.5AHE3/5B is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor nodes, consumer USB PD systems, and telecom DC feeder protection requiring stable component supply and full AEC-Q101 traceability.
Supply support for SMB10J7.5AHE3/5B 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 automotive-grade validation.
The SMB10J series belongs to Vishay's TRANSZORB® TVS platform, engineered specifically for high-power-density transient suppression in harsh environments - targeting automotive, industrial, and infrastructure applications demanding AEC-Q101 compliance and robust surge immunity.
FAQ
What is the clamping voltage of SMB10J7.5AHE3/5B and how is it measured?
The SMB10J7.5AHE3/5B has a maximum clamping voltage (VC) of 12.9 V, measured at 100 A peak pulse current (IPPM) using the standardized 10/1000 µs double-exponential waveform. This value represents the worst-case voltage imposed on the protected circuit during a surge event and is guaranteed per Vishay Document Number 88422, page 2.
Is SMB10J7.5AHE3/5B suitable for automotive applications?
Yes, SMB10J7.5AHE3/5B is AEC-Q101 qualified and carries the "HE3" automotive suffix, confirming its suitability for automotive applications including engine control, body electronics, and ADAS sensor interfaces. It meets MSL Level 1 and operates from -55 °C to +150 °C, fulfilling critical automotive environmental requirements.
What does the "/5B" suffix mean in SMB10J7.5AHE3/5B?
The "/5B" suffix indicates packaging in a 13-inch diameter plastic tape and reel, with a base quantity of 3200 units. This format supports high-volume automated SMT assembly and is distinct from "/52" (7-inch reel, 750 units) and "/H" or "/I" variants used for different reel sizes and moisture sensitivity levels.
How does SMB10J7.5AHE3/5B differ from bidirectional TVS diodes like SMB8J7.5CA?
SMB10J7.5AHE3/5B is unidirectional and optimized for DC line protection with asymmetric conduction (cathode-to-anode forward bias), whereas SMB8J7.5CA is bidirectional and symmetrical - suitable for AC or data-line applications. The SMB10J7.5AHE3/5B delivers 1000 W PPPM vs. 800 W for SMB8J7.5CA, reflecting its higher surge capacity for power rail use.
What PCB layout guidance applies to SMB10J7.5AHE3/5B for optimal thermal and electrical performance?
Vishay specifies mounting on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal to achieve rated 1000 W pulse power. Minimizing trace inductance between cathode and protected line - and ensuring low-impedance ground return to anode - is essential. Thermal relief should avoid excessive isolation; the SMB10J7.5AHE3/5B relies on pad copper for heat dissipation during surge events.
SMB10J7.5AHE3/5B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SMB10J7.5AHE3/5B FAQ
1.How can I place an order for SMB10J7.5AHE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J7.5AHE3/5B 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 SMB10J7.5AHE3/5B reliable?
The price and inventory of SMB10J7.5AHE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB10J7.5AHE3/5B is usually 5 days.
3.What payment methods are accepted for SMB10J7.5AHE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J7.5AHE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J7.5AHE3/5B?
SMB10J7.5AHE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J7.5AHE3/5B 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 SMB10J7.5AHE3/5B?
For technical support, including SMB10J7.5AHE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J7.5AHE3/5B requirements.
6.How does Aetrix verify that SMB10J7.5AHE3/5B is sourced from the original manufacturer or authorized distributors?
All SMB10J7.5AHE3/5B 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 SMB10J7.5AHE3/5B meets industry standards.
7.What is the process for return or replacement of SMB10J7.5AHE3/5B?
All SMB10J7.5AHE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J7.5AHE3/5B, 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 SMB10J7.5AHE3/5B part is unused and in its original packaging.
Return procedure for SMB10J7.5AHE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J7.5AHE3/5B Tags
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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