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Vishay General Semiconductor - Diodes Division SMB10J7.0AHE3/5B
- Part No.:
- SMB10J7.0AHE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J7.0AHE3/5B.pdf
- Description:
- TVS DIODE 7VWM 12VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,436
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Product details
Overview
SMB10J7.0AHE3/5B 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 7.0 V stand-off voltage (VWM), 12.0 V clamping voltage (VC) at 83.3 A peak pulse current (IPPM), and 1000 W peak pulse power (PPPM) with 10/1000 µs waveform - deployed in automotive ECUs, industrial sensor interfaces, and power supply input stages.
For engineers reviewing the SMB10J7.0AHE3/5B datasheet, SMB10J7.0AHE3/5B pinout, SMB10J7.0AHE3/5B application, or SMB10J7.0AHE3/5B equivalent, key selection criteria include AEC-Q101 qualification, unidirectional polarity with cathode band marking, low incremental surge resistance, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates as a clamping device that transitions from high-impedance standby to low-impedance conduction when reverse voltage exceeds its breakdown threshold (VBR = 7.78–8.60 V at 10 mA). Its glass-passivated junction ensures stable leakage (<1000 µA at VWM) and fast response time (<1 ns), enabling protection against ESD, lightning-induced transients, and inductive switching spikes.
Thermal performance is defined by RθJA = 72 °C/W and RθJL = 20 °C/W, supporting operation up to TJ = +150 °C. The device meets MSL Level 1 per J-STD-020 and is qualified to AEC-Q101 - confirming suitability for under-hood automotive environments where thermal cycling and mechanical shock resistance are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 7.0 V - maximum continuous reverse operating voltage before clamping begins; sets safe margin below system rail voltage. |
| VBR (min/max) | 7.78 V / 8.60 V at 10 mA - defines precise breakdown window for predictable turn-on behavior across temperature and lot variation. |
| VC @ IPPM | 12.0 V at 83.3 A - clamping voltage during 10/1000 µs surge; determines maximum stress imposed on protected downstream ICs. |
| PPPM | 1000 W - peak pulse power handling capability; enables robust protection against IEC 61000-4-5 Level 4 surges (4 kV/2 Ω). |
| ID @ VWM | <1000 µA - reverse leakage current at stand-off voltage; ensures minimal quiescent power loss and signal integrity in high-impedance circuits. |
| TJ max. | +150 °C - maximum junction temperature; supports operation in engine control modules and industrial motor drives without derating. |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC standard. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002. Cathode identified by color band at one end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / low-side reference | Connected to ground or lower-potential node in unidirectional configuration; forms return path during clamping. |
| Cathode | Reverse voltage sensing / clamping output | Marked with color band; connected to protected line (e.g., 12 V rail or CAN_H); conducts surge current to ground when V > VBR. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal stress and humidity exposure. |
| AEC-Q101 qualification | Validates suitability for automotive applications including powertrain, body electronics, and ADAS sensor interfaces. |
| MSL Level 1 rating | Enables direct placement without baking; compatible with standard reflow profiles peaking at 260 °C. |
| Low clamping ratio (VC/VBR ≈ 1.44) | Minimizes overvoltage overshoot during surge events, reducing risk of latch-up or gate oxide damage in protected MOSFETs/ICs. |
| 1000 W peak pulse power | Supports single-event surge immunity per ISO 7637-2 Pulse 5a (load dump) and IEC 61000-4-5 Combination Wave (4 kV). |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed microcontroller power inputs in engine control units against load dump transients. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between VCC and GND, responding within <1 ns to suppress spikes above 13.5 V. Use Value: Limits voltage seen by MCU to ≤12.0 V during 1000 W surges, preventing brownout reset or permanent damage per ISO 7637-2 compliance. |
Use Scenario: Shielding analog outputs of pressure sensors in factory automation systems from ESD and cable discharge events. IC Role / Device Role / Timing Role: Standoff-mode protector on 0–5 V output line, conducting only when induced transients exceed 7.0 V. Use Value: Maintains signal fidelity with <1000 µA leakage at 7.0 V while clamping 83.3 A surges to 12.0 V - preserving ADC accuracy and sensor calibration stability. |
| DC Power Supply Input Stage | Automotive CAN Bus Line Protection |
Use Scenario: Front-end surge suppression for 24 V industrial SMPS inputs exposed to lightning-induced surges on long wiring harnesses. IC Role / Device Role / Timing Role: Primary clamping element parallel to bulk capacitor, absorbing energy before it reaches rectifier and controller IC. Use Value: Handles 1000 W pulses without degradation, enabling compliance with IEC 61000-4-5 Level 4 (4 kV line-to-ground) without additional series impedance. |
Use Scenario: Secondary protection on CAN_H line in automotive gateway modules alongside dedicated CAN transceivers. IC Role / Device Role / Timing Role: Unidirectional TVS referenced to ground, triggered only during positive-going transients exceeding VWM. Use Value: Adds robustness against battery feed-through spikes and jump-start events while maintaining CAN signal rise/fall times due to low junction capacitance (~100 pF at 0 V). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ7.0A-E3/5B | Same SMB package and VWM (7.0 V), but rated for 600 W PPPM and 43.4 A IPPM - lower surge capacity. | Not AEC-Q101 qualified; suitable for commercial-grade industrial or consumer power supplies only. | Select when cost sensitivity outweighs automotive qualification and surge margin requirements. |
| 1.5SMC7.0A | Higher-power SMC package (1500 W PPPM), same VWM (7.0 V), but larger footprint (7.11 mm × 6.22 mm vs. SMB's 4.57 mm × 3.94 mm). | Used where PCB space allows and higher single-pulse energy absorption is required beyond 1000 W. | Choose when thermal dissipation demands lower RθJA or legacy board designs use SMC footprints. |
Compared with SMBJ7.0A-E3/5B and 1.5SMC7.0A, SMB10J7.0AHE3/5B uniquely balances AEC-Q101 qualification, 1000 W surge rating, and compact SMB footprint - making it optimal for space-constrained automotive modules requiring certified reliability.
Availability
SMB10J7.0AHE3/5B is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interface boards, and DC power supply input stages requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMB10J7.0AHE3/5B 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The SMB10J series belongs to Vishay's TRANSZORB® TVS portfolio, engineered specifically for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom infrastructure where AEC-Q101 compliance and repeatable clamping behavior are mandatory.
FAQ
What is the clamping voltage of SMB10J7.0AHE3/5B at its rated peak pulse current?
The SMB10J7.0AHE3/5B has a maximum clamping voltage (VC) of 12.0 V when subjected to its specified peak pulse current (IPPM) of 83.3 A using a 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and guarantees the protected circuit sees no more than 12.0 V during such transient events - critical for safeguarding 12 V-rated ICs and MOSFETs in automotive and industrial applications.
Is SMB10J7.0AHE3/5B qualified for automotive use?
Yes, SMB10J7.0AHE3/5B is explicitly AEC-Q101 qualified, as confirmed in Vishay document 88422 (Revision 09-Jan-2024). The HE3 suffix denotes RoHS-compliant and AEC-Q101 qualified construction, validating its use in automotive powertrain, body control, and ADAS systems where extended temperature operation (−55 °C to +150 °C) and reliability under thermal cycling are required.
What does the "5B" in SMB10J7.0AHE3/5B indicate?
The "5B" in SMB10J7.0AHE3/5B specifies the packaging format: 13-inch diameter plastic tape and reel containing 3200 units. This differs from "52", which denotes 7-inch reels of 750 units. The "HE3" portion confirms RoHS compliance and AEC-Q101 qualification, while "SMB10J7.0A" identifies the base device with 7.0 V stand-off voltage and unidirectional polarity.
How does SMB10J7.0AHE3/5B compare to bidirectional TVS diodes like SMB8J7.0CA?
SMB10J7.0AHE3/5B is unidirectional with cathode marking and optimized for DC rail protection, whereas SMB8J7.0CA is bidirectional and suited for AC or differential signal lines like RS-485 or CAN. SMB10J7.0AHE3/5B delivers 1000 W PPPM and 83.3 A IPPM, while SMB8J7.0CA offers 800 W PPPM and 66.7 A IPPM - reflecting design trade-offs between polarity specificity and symmetrical surge handling.
What is the thermal resistance of SMB10J7.0AHE3/5B, and how does it affect layout?
SMB10J7.0AHE3/5B has a typical junction-to-ambient thermal resistance (RθJA) of 72 °C/W and junction-to-lead (RθJL) of 20 °C/W. To achieve rated power dissipation, Vishay specifies mounting on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. Reducing pad size or omitting thermal vias increases junction temperature - potentially derating IPPM and shortening lifetime in sustained surge conditions.
SMB10J7.0AHE3/5B 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):
- 7V
- Voltage - Breakdown (Min):
- 7.78V
- Voltage - Clamping (Max) @ Ipp:
- 12V
- Current - Peak Pulse (10/1000µs):
- 83.3A
- 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)
SMB10J7.0AHE3/5B FAQ
1.How can I place an order for SMB10J7.0AHE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J7.0AHE3/5B 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 SMB10J7.0AHE3/5B reliable?
The price and inventory of SMB10J7.0AHE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB10J7.0AHE3/5B is usually 5 days.
3.What payment methods are accepted for SMB10J7.0AHE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J7.0AHE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J7.0AHE3/5B?
SMB10J7.0AHE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J7.0AHE3/5B 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 SMB10J7.0AHE3/5B?
For technical support, including SMB10J7.0AHE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J7.0AHE3/5B requirements.
6.How does Aetrix verify that SMB10J7.0AHE3/5B is sourced from the original manufacturer or authorized distributors?
All SMB10J7.0AHE3/5B 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 SMB10J7.0AHE3/5B meets industry standards.
7.What is the process for return or replacement of SMB10J7.0AHE3/5B?
All SMB10J7.0AHE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J7.0AHE3/5B, 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 SMB10J7.0AHE3/5B part is unused and in its original packaging.
Return procedure for SMB10J7.0AHE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J7.0AHE3/5B Tags
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