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Vishay General Semiconductor - Diodes Division SMB10J7.0A-E3/52
- Part No.:
- SMB10J7.0A-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J7.0A-E3/52.pdf
- Description:
- TVS DIODE 7VWM 12VC DO214AA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SMB10J7.0A-E3/52 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), 7.78–8.60 V breakdown voltage at 10 mA, 12.0 V clamping voltage at 83.3 A peak pulse current, and 1000 W peak pulse power rating with 10/1000 µs waveform.
For engineers reviewing the SMB10J7.0A-E3/52 datasheet, SMB10J7.0A-E3/52 pinout, SMB10J7.0A-E3/52 application, or SMB10J7.0A-E3/52 equivalent, key selection criteria include clamping performance under 83.3 A surge, thermal resistance (RθJA = 72 °C/W), AEC-Q101 qualification status, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates as a unidirectional clamping device, leveraging an avalanche breakdown mechanism to limit transient overvoltages before they damage downstream ICs or MOSFETs. Its glass-passivated junction ensures stable leakage (<1000 µA at VWM) and fast response time (<1 ns), while the SMB package supports high-power density mounting without derating up to +150 °C junction temperature.
The device complies with ANSI/IEEE C62.35 standards for surge suppression and meets J-STD-020 MSL level 1 (260 °C reflow peak). It is rated for non-repetitive 8.3 ms half-sine surge currents up to 100 A and exhibits low incremental surge resistance for consistent clamping behavior across pulse durations from 10 µs to 1000 µs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 7.0 V - Maximum continuous reverse operating voltage before significant leakage begins; defines safe DC rail margin. |
| VBR min/max | 7.78 V / 8.60 V at 10 mA - Tight breakdown window ensures predictable turn-on during transients. |
| VC @ IPPM | 12.0 V at 83.3 A - Clamped voltage seen by protected circuit during full-rated 10/1000 µs surge. |
| PPPM | 1000 W - Peak pulse power handling capacity with standard 10/1000 µs waveform; determines surge energy absorption. |
| RθJA | 72 °C/W - Junction-to-ambient thermal resistance on 0.2" × 0.2" copper pads; guides PCB thermal layout design. |
| TJ max | +150 °C - Maximum allowable junction temperature; enables operation in under-hood automotive environments. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD stress. |
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 | Forward current entry point | Connected to lower-potential side of protected line (e.g., GND or return path); must be routed with low-inductance trace. |
| Cathode | Reverse-biased terminal | Connected to higher-potential side (e.g., VCC or signal line); color band identifies this terminal for correct orientation. |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile SMB package | Enables high-density PCB layouts and compatibility with standard pick-and-place equipment for automotive production lines. |
| Glass-passivated junction | Ensures long-term stability of breakdown voltage and leakage current under thermal cycling and humidity exposure. |
| 1000 W peak pulse power | Provides robust protection against ISO 7637-2 Pulse 1, 2a, 3a/b, and IEC 61000-4-5 Level 4 surges on 12 V systems. |
| AEC-Q101 qualification | Validates suitability for automotive powertrain, body control, and ADAS modules requiring zero-failure field reliability. |
| MSL level 1 rating | Allows single-reflow assembly without baking; compatible with standard lead-free reflow profiles up to 260 °C peak. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and alternator transients in passenger vehicles. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between VBAT and GND, upstream of DC/DC converter input. Use Value: Limits voltage to ≤12.0 V during 1000 W surges, preventing latch-up or gate oxide damage in downstream PMICs and microcontrollers. | Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) from ESD and switching noise in factory automation PLCs. IC Role / Device Role / Timing Role: Low-capacitance TVS on differential signal pair (e.g., RS-485 bus lines), grounded via short traces. Use Value: Clamps 8 kV contact ESD events within <1 ns while adding <0.5 pF parasitic capacitance-preserving signal integrity up to 10 Mbps. |
| Consumer USB Port Surge Suppression | Telecom Base Station DC Input Protection |
Use Scenario: Safeguarding USB-C power delivery circuits in laptops and docking stations against hot-plug transients and cable-induced surges. IC Role / Device Role / Timing Role: Unidirectional TVS on VBUS line, positioned adjacent to connector to minimize loop inductance. Use Value: Absorbs 30 A/10/1000 µs surges without degradation, maintaining 7.0 V stand-off to avoid interfering with 5–20 V PD negotiation. | Use Scenario: Protecting -48 V DC distribution boards in 4G/5G macro base stations from lightning-induced surges on outdoor feeder lines. IC Role / Device Role / Timing Role: Primary TVS stage on rectified DC input, coordinated with MOV and gas discharge tube in multi-stage architecture. Use Value: Handles 1000 W pulses with 12.0 V clamping headroom, enabling smaller secondary protection components and reducing overall board footprint. |
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-E3/52 | Same SMB package and VWM, but lower PPPM (600 W) and IPPM (32.4 A); no AEC-Q101 qualification. | Suitable for commercial-grade consumer electronics where automotive reliability is not required. | Select SMBJ7.0A-E3/52 only when cost sensitivity outweighs surge margin and automotive compliance needs. |
| 1.5SMC7.0A | Higher-power SMC package (1500 W PPPM), larger footprint (7.11 mm × 6.22 mm), same VWM and clamping voltage. | Better suited for industrial power supplies needing >1000 W surge handling and higher thermal mass. | Choose 1.5SMC7.0A when PCB space allows and system-level surge testing exceeds IEC 61000-4-5 Level 4. |
Compared with SMBJ7.0A-E3/52 and 1.5SMC7.0A, SMB10J7.0A-E3/52 uniquely balances automotive qualification, 1000 W surge capability, and SMB footprint-making it optimal for space-constrained automotive modules requiring validated field reliability.
Availability
SMB10J7.0A-E3/52 is available at Aetrix Electronics and suitable for automotive ECU designs, industrial sensor interfaces, consumer USB-C power delivery systems, and telecom DC input protection requiring stable component supply and AEC-Q101 compliance.
Supply support for SMB10J7.0A-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, rectifiers, MOSFETs, and protection devices with emphasis on high-reliability, high-efficiency solutions.
The SMB10J series belongs to Vishay's TRANSZORB® TVS platform, engineered specifically for automotive and industrial applications demanding robust, standardized, and AEC-Q101-qualified transient suppression in compact surface-mount packages.
FAQ
What is the clamping voltage of SMB10J7.0A-E3/52 at its rated peak pulse current?
The SMB10J7.0A-E3/52 has a maximum clamping voltage (VC) of 12.0 V at its rated peak pulse current (IPPM) of 83.3 A 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 protected circuitry during worst-case surge events. The SMB10J7.0A-E3/52 maintains this clamping performance across ambient temperatures from –55 °C to +125 °C.
Is SMB10J7.0A-E3/52 qualified for automotive use?
Yes, SMB10J7.0A-E3/52 is AEC-Q101 qualified, as confirmed by Vishay's official documentation (Document Number: 88422, Revision: 09-Jan-2024). This qualification covers stress tests including high-temperature reverse bias, temperature cycling, and ESD, validating its suitability for automotive powertrain, body electronics, and ADAS applications. The "HE3" suffix variant (e.g., SMB10J7.0AHE3_B/H) explicitly denotes AEC-Q101 compliance, but the E3/52 version shares identical die and construction.
What is the thermal resistance of SMB10J7.0A-E3/52, and how does it affect PCB layout?
The SMB10J7.0A-E3/52 has a typical junction-to-ambient thermal resistance (RθJA) of 72 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. This value assumes minimum recommended pad layout per Vishay's package drawing. To maintain safe junction temperature under repeated surges, designers must provide adequate copper area and consider thermal vias-especially in automotive modules operating near +125 °C ambient. The SMB10J7.0A-E3/52's RθJA directly impacts maximum allowable surge repetition rate.
How does SMB10J7.0A-E3/52 differ from bidirectional variants like SMB8J7.0CA?
SMB10J7.0A-E3/52 is unidirectional with cathode marking and conducts forward current up to 100 A (IFSM), while SMB8J7.0CA is bidirectional, lacks polarity marking, and offers 400 A IPPM but only 800 W PPPM. The SMB10J7.0A-E3/52 provides tighter VBR tolerance (7.78–8.60 V vs. 7.78–8.60 V for SMB8J7.0CA) and is AEC-Q101 qualified, whereas SMB8J7.0CA's qualification status is not specified in the source document. Use SMB10J7.0A-E3/52 for DC rail protection; SMB8J7.0CA suits AC-coupled or dual-rail signal lines.
What packaging format is supplied for SMB10J7.0A-E3/52?
SMB10J7.0A-E3/52 is supplied in 7" diameter plastic tape and reel format, with a base quantity of 750 units per reel (package code "52"). The tape conforms to EIA-481 standards and supports high-speed automated placement. Lead finish is matte tin, compliant with J-STD-002 and JESD 22-B102, and the part meets JESD 201 class 2 whisker resistance. Traceability data-including lot code and date code-is marked on the reel label and inner box.
SMB10J7.0A-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:
- Active
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SMB10J7.0A-E3/52 FAQ
1.How can I place an order for SMB10J7.0A-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J7.0A-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 SMB10J7.0A-E3/52 reliable?
The price and inventory of SMB10J7.0A-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 SMB10J7.0A-E3/52 is usually 5 days.
3.What payment methods are accepted for SMB10J7.0A-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J7.0A-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J7.0A-E3/52?
SMB10J7.0A-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J7.0A-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 SMB10J7.0A-E3/52?
For technical support, including SMB10J7.0A-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J7.0A-E3/52 requirements.
6.How does Aetrix verify that SMB10J7.0A-E3/52 is sourced from the original manufacturer or authorized distributors?
All SMB10J7.0A-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 SMB10J7.0A-E3/52 meets industry standards.
7.What is the process for return or replacement of SMB10J7.0A-E3/52?
All SMB10J7.0A-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J7.0A-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 SMB10J7.0A-E3/52 part is unused and in its original packaging.
Return procedure for SMB10J7.0A-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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