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Vishay General Semiconductor - Diodes Division SMB10J7.0AHM3_A/I
- Part No.:
- SMB10J7.0AHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J7.0AHM3_A/I.pdf
- Description:
- TVS DIODE 7VWM 12VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,230
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Product details
Overview
SMB10J7.0AHM3_A/I 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 200 A peak pulse current (IPPM), and 1000 W peak pulse power (PPPM) with 10/1000 µs waveform - deployed in automotive sensor interfaces and industrial I/O modules.
For engineers reviewing the SMB10J7.0AHM3_A/I datasheet, SMB10J7.0AHM3_A/I pinout, SMB10J7.0AHM3_A/I application, or SMB10J7.0AHM3_A/I equivalent, key selection criteria include AEC-Q101 qualification, unidirectional polarity, low clamping ratio (VC/VWM = 1.71), MSL Level 1 moisture sensitivity, and halogen-free RoHS compliance per HM3 suffix.
Technical Context
This device operates as a silicon avalanche diode optimized for fast transient suppression in automotive-grade systems. Its glass-passivated junction delivers sub-nanosecond response time and low incremental surge resistance, enabling effective clamping of ESD (IEC 61000-4-2) and load-dump (ISO 7637-2) transients without thermal runaway.
The SMB10J7.0AHM3_A/I is rated for -55 °C to +150 °C operating junction temperature and exhibits 1.0 µA max reverse leakage at VWM, ensuring minimal standby power loss. Its 72 °C/W junction-to-ambient thermal resistance requires minimum 5.0 mm × 5.0 mm copper pad layout per terminal for full 1000 W rating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 7.0 V - Maximum continuous reverse operating voltage before clamping begins; sets upper limit for protected circuit's normal DC rail. |
| VBR min/max | 7.78 V / 8.60 V at 10 mA - Breakdown threshold range ensures reliable turn-on across process variation and temperature. |
| VC @ IPPM | 12.0 V at 200 A (10/1000 µs) - Clamped voltage seen by downstream IC during worst-case surge; defines protection margin. |
| PPPM | 1000 W - Peak transient energy handling capacity; determines survivability against ISO 7637-2 Pulse 5a load-dump events. |
| IFSM | 100 A - Non-repetitive forward surge rating (8.3 ms half-sine); supports inrush current tolerance in power-up scenarios. |
| TJ max | +150 °C - Maximum junction temperature; enables operation in under-hood automotive environments with no derating up to 125 °C ambient. |
| MSL Level | Level 1 (per J-STD-020) - No floor life limitation; suitable for standard SMT reflow without dry-pack or baking. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, molded plastic case with matte tin-plated leads. Cathode indicated by color band; polarity-critical for unidirectional operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference node | Connected to ground or lowest-potential rail; establishes reference for clamping action. |
| Cathode | Protected line input | Connected to line being protected (e.g., 12 V battery feed); conducts surge current to anode during overvoltage. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, body electronics, and ADAS sensor interfaces. |
| Halogen-free & RoHS-compliant (HM3) | Meets automotive environmental standards and end-of-life recycling requirements without compromising surge robustness. |
| Glass-passivated junction | Ensures stable breakdown characteristics, low leakage (<1 µA), and long-term reliability under thermal cycling. |
| Low clamping ratio (VC/VWM = 1.71) | Minimizes voltage overshoot during transients, protecting 5 V–12 V logic and analog front-ends without overdesign. |
| MSL Level 1 | Enables direct placement into high-volume SMT lines without moisture sensitivity handling or pre-bake steps. |
Applications
| Automotive Sensor Interface | Industrial PLC Digital Input |
|---|---|
Use Scenario: Protecting CAN/LIN transceiver supply pins and analog sensor outputs (e.g., pressure, temperature) from battery transients and ESD in passenger vehicles. IC Role / Device Role / Timing Role: Unidirectional TVS placed between 12 V rail and ground, clamping load-dump spikes before they reach sensitive analog front-end ICs. Use Value: Maintains <12.0 V clamping at 200 A ensures downstream 16 V-rated op-amps and ADCs remain within absolute maximum ratings during ISO 7637-2 Pulse 5a events. |
Use Scenario: Safeguarding 24 V digital input channels on programmable logic controllers exposed to inductive kickback from solenoid valves and relay coils. IC Role / Device Role / Timing Role: Primary surge clamp on field-side input terminals, absorbing repetitive 1000 W pulses without degradation over >100,000 cycles. Use Value: 1000 W PPPM and 100 A IFSM enable direct integration without external series impedance, reducing BOM count and PCB area. |
| USB-C Power Delivery Line | Motor Drive Gate Driver Supply |
Use Scenario: Suppressing ESD and hot-swap transients on VBUS lines in USB-C PD adapters and docking stations compliant with IEC 61000-4-2 Level 4. IC Role / Device Role / Timing Role: Fast-response unidirectional clamp between 5–20 V VBUS and chassis ground, activated within <1 ns of overvoltage onset. Use Value: Sub-1 µA leakage at 7.0 V VWM prevents quiescent current drain in always-on power path monitoring circuits. |
Use Scenario: Shielding isolated gate driver ICs (e.g., Si82xx, UCCx35x) from Miller-induced voltage spikes on bootstrap or auxiliary supply rails in BLDC inverters. IC Role / Device Role / Timing Role: Localized TVS adjacent to gate driver VDD pin, limiting transient excursions to <12.0 V during MOSFET switching edge ringing. Use Value: 12.0 V clamping voltage ensures gate oxide integrity of 12 V-rated drivers while maintaining noise margin for logic-level inputs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ7.0AHE3_A/I | Same electrical specs but E3 suffix: RoHS-compliant commercial grade, not AEC-Q101 qualified or halogen-free. | Lacks automotive qualification; unsuitable for under-hood or safety-critical ECUs. | Select when cost-sensitive industrial or consumer designs require identical clamping performance without automotive certification. |
| SMAJ7.0A-HM3 | Lower PPPM (400 W), smaller SMA (DO-214AC) package, same VWM/VC specs. | Reduced surge margin; limited to lower-energy transients like IEC 61000-4-5 Level 3. | Choose for space-constrained layouts where 400 W rating suffices and footprint reduction outweighs derated surge capability. |
Compared with SMB10J7.0AHM3_A/I, SMBJ7.0AHE3_A/I offers identical protection performance but lacks AEC-Q101 validation and halogen-free status, while SMAJ7.0A-HM3 trades 60% lower peak power for 30% smaller footprint - making SMB10J7.0AHM3_A/I optimal for automotive-grade 1000 W surge immunity where reliability and regulatory compliance are mandatory.
Availability
SMB10J7.0AHM3_A/I is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC inputs, USB-C power delivery systems, and motor drive gate driver protection requiring stable component supply and full AEC-Q101 traceability.
Supply support for SMB10J7.0AHM3_A/I 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, MOSFETs, and passive components for automotive, industrial, and computing markets.
The SMB10J series targets high-power transient suppression in harsh environments, with design focus on AEC-Q101 compliance, low clamping voltage, and robust surge endurance for next-generation vehicle electronics.
FAQ
What is the clamping voltage of SMB10J7.0AHM3_A/I at its rated peak pulse current?
The SMB10J7.0AHM3_A/I has a maximum clamping voltage (VC) of 12.0 V when subjected to its rated 200 A peak pulse current (IPPM) with a 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and guarantees that downstream circuitry sees no more than 12.0 V during worst-case transient events, preserving the safe operating area of 12 V-rated ICs. The SMB10J7.0AHM3_A/I achieves this with a clamping ratio of 1.71 (VC/VWM), confirming high surge-handling efficiency.
Is SMB10J7.0AHM3_A/I qualified for automotive applications?
Yes, SMB10J7.0AHM3_A/I is AEC-Q101 qualified, as confirmed by Vishay's documentation (Document Number: 88422, Revision: 09-Jan-2024). The "HM3" suffix denotes halogen-free, RoHS-compliant construction with automotive-grade reliability testing, including temperature cycling, humidity bias, and accelerated life stress. This makes SMB10J7.0AHM3_A/I suitable for use in engine control units, ADAS sensors, and body control modules where failure modes must meet ISO 26262 ASIL-aware system requirements.
What is the maximum reverse leakage current for SMB10J7.0AHM3_A/I at its stand-off voltage?
The SMB10J7.0AHM3_A/I specifies a maximum reverse leakage current (ID) of 1.0 µA at its 7.0 V stand-off voltage (VWM) and 25 °C ambient temperature. This ultra-low leakage ensures negligible power loss in always-on automotive subsystems such as telematics wake-up circuits or CAN bus standby nodes. Leakage remains below 10 µA up to +125 °C ambient, supporting robust operation across full automotive temperature ranges without compromising battery drain budgets.
Does SMB10J7.0AHM3_A/I require special handling during PCB assembly?
No, SMB10J7.0AHM3_A/I is rated MSL Level 1 per J-STD-020, meaning it has unlimited floor life and withstands standard lead-free reflow profiles (peak 260 °C) without dry-packaging or baking. Its matte tin-plated leads comply with J-STD-002 and JESD 22-B102 for solderability, and the SMB (DO-214AA) package supports automated pick-and-place with standard nozzle tooling. The SMB10J7.0AHM3_A/I is fully compatible with high-volume SMT lines used in Tier 1 automotive electronics manufacturing.
How does the thermal resistance of SMB10J7.0AHM3_A/I affect its surge rating?
The SMB10J7.0AHM3_A/I has a typical junction-to-ambient thermal resistance (RθJA) of 72 °C/W, which directly limits its sustained power dissipation. To achieve the full 1000 W peak pulse rating, Vishay specifies mounting on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal - providing sufficient heat spreading for transient energy absorption. Without this layout, derating applies per Figure 2 in the datasheet; for example, at 100 °C ambient, the usable PPPM drops to ~700 W. The SMB10J7.0AHM3_A/I's RθJL of 20 °C/W further confirms efficient heat transfer to PCB copper.
SMB10J7.0AHM3_A/I 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:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SMB10J7.0AHM3_A/I FAQ
1.How can I place an order for SMB10J7.0AHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J7.0AHM3_A/I 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 SMB10J7.0AHM3_A/I reliable?
The price and inventory of SMB10J7.0AHM3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB10J7.0AHM3_A/I is usually 5 days.
3.What payment methods are accepted for SMB10J7.0AHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J7.0AHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J7.0AHM3_A/I?
SMB10J7.0AHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J7.0AHM3_A/I 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 SMB10J7.0AHM3_A/I?
For technical support, including SMB10J7.0AHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J7.0AHM3_A/I requirements.
6.How does Aetrix verify that SMB10J7.0AHM3_A/I is sourced from the original manufacturer or authorized distributors?
All SMB10J7.0AHM3_A/I 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 SMB10J7.0AHM3_A/I meets industry standards.
7.What is the process for return or replacement of SMB10J7.0AHM3_A/I?
All SMB10J7.0AHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J7.0AHM3_A/I, 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 SMB10J7.0AHM3_A/I part is unused and in its original packaging.
Return procedure for SMB10J7.0AHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J7.0AHM3_A/I Tags
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