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Vishay General Semiconductor - Diodes Division SMB10J7.5HE3/52
- Part No.:
- SMB10J7.5HE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J7.5HE3/52.pdf
- Description:
- TVS DIODE 7.5VWM 14.3VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,275
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Product details
Overview
SMB10J7.5HE3/52 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 mA, 12.9 V clamping voltage (VC) at 100 A peak pulse current, and 1000 W peak pulse power rating with 10/1000 µs waveform. It is AEC-Q101 qualified and used in automotive sensor interface protection.
For engineers reviewing the SMB10J7.5HE3/52 datasheet, SMB10J7.5HE3/52 pinout, SMB10J7.5HE3/52 application, or SMB10J7.5HE3/52 equivalent, key selection criteria include clamping performance under 100 A surge, unidirectional polarity for DC rail placement, AEC-Q101 qualification for automotive environments, and compatibility with automated SMT assembly on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: when reverse voltage exceeds VBR, it avalanches to divert surge current away from downstream ICs. Its glass-passivated junction ensures stable breakdown and low leakage (≤1.0 µA at VWM), while its low incremental surge resistance enables rapid energy absorption without thermal runaway.
The device is rated for 150 °C maximum junction temperature and exhibits 72 °C/W junction-to-ambient thermal resistance on standard 0.2" × 0.2" pads. Its 10/1000 µs waveform response meets IEC 61000-4-5 Level 4 requirements when applied with appropriate PCB layout and series impedance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 7.5 V - Maximum continuous reverse operating voltage before significant leakage; sets upper limit for protected circuit's nominal DC rail. |
| VBR (min/max) | 8.33 V / 9.21 V at 1 mA - Confirmed breakdown range ensures reliable turn-on margin above VWM while avoiding false triggering. |
| VC @ IPPM | 12.9 V at 100 A - Clamping voltage during full-rated surge; defines worst-case overvoltage seen by protected load. |
| PPPM | 1000 W - Peak pulse power handling with 10/1000 µs waveform; determines survivability against lightning-induced transients. |
| ID @ VWM | ≤1.0 µA - Reverse leakage at stand-off voltage; critical for low-power sensor bias networks and battery-backed circuits. |
| TJ max. | 150 °C - Maximum junction temperature; supports operation in under-hood automotive environments with proper thermal pad design. |
| Package | DO-214AA (SMB) - Standard surface-mount outline with cathode band marking; compatible with J-STD-020 MSL level 1 reflow profile (260 °C peak). |
Pinout & Package
DO-214AA (SMB) package: molded plastic case with matte tin-plated leads, cathode indicated by color band on one end. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); recommended pad layout: 5.0 mm × 5.0 mm copper per terminal.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path (for uni-directional operation) | Connected to lower-potential side of protected line (e.g., GND or return path); enables forward-biased conduction only during fault conditions. |
| Cathode | Reverse-biased clamping node | Connected to higher-potential side (e.g., +12 V rail); avalanche breakdown occurs here during overvoltage events to clamp voltage to VC. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, humidity testing, and mechanical shock-enables use in engine control modules and ADAS sensors. |
| Glass passivated junction | Ensures stable VBR over time and temperature, reduces parameter drift, and improves long-term surge endurance versus epoxy-passivated alternatives. |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes overvoltage stress on protected MOSFETs or microcontrollers during 100 A surges-critical for 3.3 V or 5 V logic-level interfaces. |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow without baking; simplifies SMT line integration and reduces production risk. |
| RoHS-compliant & whisker-tested (JESD 201 Class 2) | Meets global environmental regulations and prevents tin whisker growth in high-reliability automotive applications. |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Digital Input Protection |
|---|---|
|
Use Scenario: Protecting 12 V supply inputs of BCM microcontrollers from load-dump transients up to 35 V and ISO 7637-2 Pulse 5a. IC Role / Device Role / Timing Role: Shunt clamping element placed directly across input rail, activated within nanoseconds of overvoltage onset. Use Value: Limits rail voltage to ≤12.9 V during 100 A surge, preventing latch-up or permanent damage to 12 V-tolerant MCU I/O and power management ICs. |
Use Scenario: Safeguarding 24 V digital input channels of programmable logic controllers against field-wiring induced surges and ESD events. IC Role / Device Role / Timing Role: Primary overvoltage clamp on channel front-end, positioned before optocoupler or Schmitt-trigger input stage. Use Value: Maintains signal integrity by clamping transients below 15 V, ensuring clean edge detection and eliminating false triggers in noisy factory environments. |
| Automotive Camera Sensor Interface | Consumer Appliance Motor Driver Supply Rail |
|
Use Scenario: Protecting LVDS or FPD-Link III power pins in rear-view or surround-view camera modules exposed to automotive battery transients. IC Role / Device Role / Timing Role: Localized DC rail clamp adjacent to image sensor ASIC, minimizing trace inductance between TVS and protected node. Use Value: Prevents pixel corruption or reset events by holding supply voltage within ±1 V of nominal 3.3 V or 5 V during sub-microsecond EFT bursts. |
Use Scenario: Suppressing inductive kickback from brushed DC motor commutation in washing machines or HVAC blowers. IC Role / Device Role / Timing Role: Bidirectional-capable but used unidirectionally across 24 V motor driver H-bridge supply, absorbing flyback energy during PWM switching. Use Value: Extends MOSFET lifetime by limiting drain-source voltage spikes to <13 V, reducing avalanche stress and thermal degradation. |
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 and 7.5 V VWM, but rated for 600 W PPPM (vs. 1000 W) and 60 A IPPM (vs. 100 A); not AEC-Q101 qualified. | Limited to commercial-grade industrial or consumer applications where surge severity is lower and automotive qualification is unnecessary. | Select SMBJ7.5A-E3/52 only if system-level surge testing confirms 600 W rating suffices and AEC-Q101 is not required. |
| 1.5SMC7.5A | DO-214AB (SMC) package (larger footprint), same 7.5 V VWM, 1000 W PPPM, but higher thermal resistance (RθJA = 11 °C/W vs. 72 °C/W) and no AEC-Q101 qualification. | Requires more PCB area and offers inferior thermal performance on small pads; suitable only where space permits and automotive compliance is waived. | Choose 1.5SMC7.5A only when higher surge repetition rate demands better steady-state power dissipation and AEC-Q101 is not mandated. |
Compared with SMBJ7.5A-E3/52 and 1.5SMC7.5A, SMB10J7.5HE3/52 uniquely combines AEC-Q101 qualification, 1000 W surge capability in compact SMB outline, and validated thermal performance on minimal copper-making it the optimal choice for space-constrained automotive electronics requiring highest reliability.
Availability
SMB10J7.5HE3/52 is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC input stages, camera module power rails, and appliance motor driver protection requiring stable component supply and long-term lifecycle support.
Supply support for SMB10J7.5HE3/52 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 high-reliability diodes, rectifiers, and protection devices for automotive, industrial, and computing markets.
The SMB10J series belongs to Vishay's TRANSZORB® TVS platform, engineered specifically for high-power-density transient suppression in harsh environments where AEC-Q101 compliance, fast response, and repeatable clamping are mandatory.
FAQ
What is the clamping voltage of SMB10J7.5HE3/52 at its rated peak pulse current?
The SMB10J7.5HE3/52 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 per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on the protected circuit during worst-case surge events. The SMB10J7.5HE3/52 maintains this clamping performance across its specified operating temperature range.
Is SMB10J7.5HE3/52 suitable for automotive applications?
Yes, SMB10J7.5HE3/52 is AEC-Q101 qualified and explicitly designed for automotive use, including engine control units, body control modules, and ADAS camera systems. Its qualification covers temperature cycling, mechanical shock, and humidity testing per automotive reliability standards. The HE3 suffix denotes AEC-Q101 compliance, distinguishing it from commercial-grade variants like SMB10J7.5A-E3/52. SMB10J7.5HE3/52 meets these requirements without derating.
What is the difference between SMB10J7.5HE3/52 and SMBJ7.5A-E3/52?
SMB10J7.5HE3/52 delivers 1000 W peak pulse power (PPPM) and 100 A peak pulse current (IPPM), whereas SMBJ7.5A-E3/52 is rated for 600 W and 60 A. Additionally, SMB10J7.5HE3/52 carries AEC-Q101 qualification (denoted by HE3), while SMBJ7.5A-E3/52 is commercial grade only. Both share the DO-214AA package and 7.5 V stand-off voltage, but SMB10J7.5HE3/52 provides higher surge robustness and automotive certification. SMB10J7.5HE3/52 is not a drop-in replacement due to differing surge ratings and qualification status.
What PCB layout guidance applies to SMB10J7.5HE3/52 for optimal thermal and electrical performance?
For optimal performance, mount SMB10J7.5HE3/52 on minimum 5.0 mm × 5.0 mm copper pads per terminal, as specified in the Vishay datasheet. Avoid narrow traces between the TVS and protected node to minimize inductance-keep connections short and wide. Use thermal vias under pads if board layer count permits, and ensure ground plane continuity beneath the device. These practices maintain low clamping impedance and prevent localized overheating during repeated surges. SMB10J7.5HE3/52 thermal performance is validated using this layout.
Does SMB10J7.5HE3/52 have polarity markings, and how is it oriented on the PCB?
Yes, SMB10J7.5HE3/52 is unidirectional and marked with a cathode band on the package body-this band identifies the cathode terminal. During PCB placement, the cathode band must align with the designated cathode net (typically the higher-potential side, e.g., +12 V rail), while the anode connects to the lower-potential side (e.g., GND or return path). Incorrect orientation will prevent proper clamping function. The SMB10J7.5HE3/52 datasheet specifies this polarity in the mechanical drawings and electrical characteristics table.
SMB10J7.5HE3/52 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SMB10J7.5HE3/52 FAQ
1.How can I place an order for SMB10J7.5HE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J7.5HE3/52 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 SMB10J7.5HE3/52 reliable?
The price and inventory of SMB10J7.5HE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB10J7.5HE3/52 is usually 5 days.
3.What payment methods are accepted for SMB10J7.5HE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J7.5HE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J7.5HE3/52?
SMB10J7.5HE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J7.5HE3/52 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 SMB10J7.5HE3/52?
For technical support, including SMB10J7.5HE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J7.5HE3/52 requirements.
6.How does Aetrix verify that SMB10J7.5HE3/52 is sourced from the original manufacturer or authorized distributors?
All SMB10J7.5HE3/52 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 SMB10J7.5HE3/52 meets industry standards.
7.What is the process for return or replacement of SMB10J7.5HE3/52?
All SMB10J7.5HE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J7.5HE3/52, 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 SMB10J7.5HE3/52 part is unused and in its original packaging.
Return procedure for SMB10J7.5HE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J7.5HE3/52 Tags
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