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Vishay General Semiconductor - Diodes Division SMB10J7.0AHE3_A/H
- Part No.:
- SMB10J7.0AHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J7.0AHE3_A/H.pdf
- Description:
- TVS DIODE 7VWM 12VC DO214AA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SMB10J7.0AHE3_A/H 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 maximum clamping voltage (VC) at 200 A peak pulse current (IPPM), and 1000 W peak pulse power (PPPM) with 10/1000 µs waveform - enabling robust protection of automotive ECUs, industrial sensors, and power supply inputs.
For engineers reviewing the SMB10J7.0AHE3_A/H datasheet, SMB10J7.0AHE3_A/H pinout, SMB10J7.0AHE3_A/H application, or SMB10J7.0AHE3_A/H equivalent, key selection criteria include its AEC-Q101 qualification, low clamping ratio (VC/VWM = 1.71), unidirectional polarity with cathode band marking, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: under normal conditions it presents <1 µA reverse leakage at 7.0 V; during transients exceeding 7.78 V breakdown (VBR min), it avalanches to clamp the line at ≤12.0 V while diverting up to 200 A (10/1000 µs). Its glass-passivated junction ensures stable avalanche behavior and low incremental surge resistance.
Thermally, it sustains operation from −55 °C to +150 °C junction temperature, with RθJA = 72 °C/W and RθJL = 20 °C/W. The SMB package supports MSL Level 1 handling and 260 °C reflow peak per J-STD-020 - critical for automotive PCB assembly reliability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 7.0 V - Maximum continuous reverse operating voltage before conduction begins; defines safe DC rail margin for 5 V–12 V systems. |
| VBR (min/max) | 7.78 V / 8.60 V at 10 mA - Confirmed breakdown range ensures reliable turn-on without premature triggering. |
| VC @ IPPM | 12.0 V at 200 A (10/1000 µs) - Clamping voltage directly limits stress on downstream ICs like microcontrollers or CAN transceivers. |
| PPPM | 1000 W - Peak surge energy absorption capacity compatible with ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 Level 4 requirements. |
| ID @ VWM | 1000 µA max - Low leakage preserves battery life in always-on automotive modules and sensor nodes. |
| TJ max. | +150 °C - Enables deployment in under-hood automotive environments and high-temperature industrial enclosures. |
| 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 (max height 2.20 mm), matte tin-plated leads, RoHS-compliant and halogen-free (HE3 suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | High-side connection point for unidirectional clamping | Connected to protected line (e.g., VBUS); anode tied to ground - enables fast response to positive transients. |
| Anode | Reference/return path to system ground | Must be routed to low-inductance ground plane; layout impacts clamping performance and thermal dissipation. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, ADAS sensors, and body electronics - eliminates need for additional qualification testing. |
| Glass passivated junction | Ensures consistent avalanche characteristics over lifetime and temperature, reducing parameter drift in harsh environments. |
| Low clamping ratio (VC/VWM = 1.71) | Minimizes overvoltage stress on protected ICs compared to higher-ratio TVS devices - critical for 3.3 V/5 V logic interfaces. |
| MSL Level 1, 260 °C peak reflow | Supports standard lead-free SMT assembly without moisture sensitivity concerns or baking requirements. |
| 1000 W peak pulse power | Handles repetitive surges per ISO 7637-2 without degradation - suitable for load-dump and inductive-switching protection in 12 V systems. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 12 V supply input of engine control unit (ECU) against load dump (ISO 7637-2 Pulse 5a) and alternator transients. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between VBAT and chassis ground, clamping transients within 1 ns. Use Value: Limits voltage to ≤12.0 V during 200 A surge, preventing latch-up or damage to MCU power management ICs. |
Use Scenario: Safeguarding analog output (4–20 mA) or digital I/O (CAN/LIN) lines of pressure/temperature sensors in factory automation. IC Role / Device Role / Timing Role: Point-of-entry TVS on sensor PCB, positioned before ESD protection diodes and signal conditioning circuitry. Use Value: Absorbs IEC 61000-4-2 ±8 kV contact discharge energy while maintaining <1 µA leakage at 7.0 V standby. |
| DC-DC Converter Input Protection | Consumer Power Adapter Output Protection |
|
Use Scenario: Securing input of 5 V/3.3 V buck converter feeding FPGA or SoC in telecom infrastructure equipment. IC Role / Device Role / Timing Role: Primary overvoltage clamp upstream of input capacitor and controller IC, rated for 1000 W pulses. Use Value: Prevents catastrophic failure of MOSFETs and gate drivers during lightning-induced surges on PoE or AC/DC front-end lines. |
Use Scenario: Adding surge immunity to USB-C PD adapter output (5–20 V) before connector, meeting UL 62368-1 transient requirements. IC Role / Device Role / Timing Role: Final-stage TVS on secondary side, selected for low VWM tolerance and fast response to output short-circuit transients. Use Value: Clamps output to 12.0 V during 200 A surge, protecting connected mobile devices without affecting steady-state regulation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ7.0AHE3_A/H | Same SMB package, identical VWM (7.0 V) and VC (12.0 V), but lower PPPM (600 W) and IPPM (33.3 A). | Rated for lighter-duty surge events (IEC 61000-4-5 Level 2); insufficient for automotive load dump. | Select SMB10J7.0AHE3_A/H when 1000 W surge capability is required; choose SMBJ7.0AHE3_A/H only for cost-sensitive consumer applications with lower threat profiles. |
| 1.5SMC7.0AHE3_A/H | Higher-power SMC package (1500 W PPPM), same VWM/VC, but larger footprint (7.11 mm × 6.22 mm vs. SMB's 4.57 mm × 3.94 mm). | Used where board space allows and higher surge margin is needed - e.g., industrial motor drives. | Choose SMB10J7.0AHE3_A/H for space-constrained automotive modules; select 1.5SMC7.0AHE3_A/H only if PCB layout permits larger SMC footprint and >1000 W headroom is mandatory. |
Compared with SMBJ7.0AHE3_A/H and 1.5SMC7.0AHE3_A/H, SMB10J7.0AHE3_A/H uniquely balances 1000 W surge rating, AEC-Q101 qualification, and compact SMB footprint - making it the optimal choice for automotive and space-limited industrial designs requiring certified high-energy clamping.
Availability
SMB10J7.0AHE3_A/H is available at Aetrix Electronics and suitable for automotive ECU protection, industrial sensor interface hardening, and DC-DC converter input safeguarding requiring stable component supply across multi-year production cycles.
Supply support for SMB10J7.0AHE3_A/H 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, power density, and automotive qualification.
The SMB10J series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-energy transient suppression in automotive, industrial, and telecom systems where AEC-Q101 compliance and low clamping voltage are mandatory.
FAQ
What is the maximum clamping voltage of SMB10J7.0AHE3_A/H at its rated peak pulse current?
The SMB10J7.0AHE3_A/H has a maximum clamping voltage (VC) of 12.0 V when subjected to its rated peak pulse current of 200 A with a 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and guarantees that downstream components experience no more than 12.0 V during surge events - a critical design parameter for protecting 5 V and 3.3 V logic circuits. The SMB10J7.0AHE3_A/H achieves this with a low clamping ratio of 1.71 (VC/VWM), confirming its effectiveness in high-stress applications.
Is SMB10J7.0AHE3_A/H qualified for automotive use?
Yes, SMB10J7.0AHE3_A/H is AEC-Q101 qualified, as confirmed by Vishay's documentation (Document Number: 88422, Revision: 09-Jan-2024). This qualification covers stress tests including high-temperature reverse bias (HTRB), temperature cycling, and ESD - validating its suitability for under-hood and cabin automotive applications such as body control modules, ADAS sensors, and infotainment power supplies. The HE3 suffix explicitly denotes AEC-Q101 compliance and RoHS conformity.
What does the "HE3" suffix mean in SMB10J7.0AHE3_A/H?
The "HE3" suffix in SMB10J7.0AHE3_A/H indicates RoHS-compliant construction with AEC-Q101 qualification, distinguishing it from commercial-grade E3 or M3 variants. Per Vishay's ordering nomenclature, HE3 denotes halogen-free, lead-free, and automotive-qualified status - essential for Tier 1 automotive suppliers requiring full material compliance and reliability validation. The "_A/H" further specifies packaging: 7″ tape-and-reel, 750 units per reel.
How does SMB10J7.0AHE3_A/H compare to bidirectional TVS diodes with the same VWM?
SMB10J7.0AHE3_A/H is unidirectional and optimized for DC rail protection where polarity is fixed - offering higher peak pulse power (1000 W) and surge current (200 A) than its bidirectional counterpart SMB8J7.0CAHE3_A/H (800 W, 66.7 A). Its cathode-band marking simplifies layout and avoids ambiguity in grounding schemes. For AC or differential signal lines (e.g., RS-485), a bidirectional device would be necessary - but for 12 V battery feeds or regulated DC outputs, SMB10J7.0AHE3_A/H delivers superior energy handling and lower clamping voltage.
What PCB layout practices maximize the surge protection performance of SMB10J7.0AHE3_A/H?
To maximize performance, route SMB10J7.0AHE3_A/H with minimal trace length between cathode and protected line, and connect anode directly to a low-inductance ground plane using multiple vias. Vishay specifies mounting on 0.2″ × 0.2″ (5.0 mm × 5.0 mm) copper pads per terminal - undersized pads increase thermal resistance and reduce surge endurance. Avoid routing sensitive traces near the TVS, and ensure clearance from adjacent components to prevent arcing during high-current clamping events. These practices preserve the SMB10J7.0AHE3_A/H's specified 1000 W rating and 12.0 V clamping voltage.
SMB10J7.0AHE3_A/H 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):
- 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_A/H FAQ
1.How can I place an order for SMB10J7.0AHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J7.0AHE3_A/H 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_A/H reliable?
The price and inventory of SMB10J7.0AHE3_A/H 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_A/H is usually 5 days.
3.What payment methods are accepted for SMB10J7.0AHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J7.0AHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J7.0AHE3_A/H?
SMB10J7.0AHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J7.0AHE3_A/H 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_A/H?
For technical support, including SMB10J7.0AHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J7.0AHE3_A/H requirements.
6.How does Aetrix verify that SMB10J7.0AHE3_A/H is sourced from the original manufacturer or authorized distributors?
All SMB10J7.0AHE3_A/H 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_A/H meets industry standards.
7.What is the process for return or replacement of SMB10J7.0AHE3_A/H?
All SMB10J7.0AHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J7.0AHE3_A/H, 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_A/H part is unused and in its original packaging.
Return procedure for SMB10J7.0AHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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