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Vishay General Semiconductor - Diodes Division SMB10J10HE3/52
- Part No.:
- SMB10J10HE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J10HE3/52.pdf
- Description:
- TVS DIODE 10VWM 18.8VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,269
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Product details
Overview
SMB10J10HE3/52 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 10 V stand-off voltage (VWM), 11.1–12.3 V breakdown voltage (VBR), 17.0 V clamping voltage (VC) at 5.0 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 power supply input stages.
For engineers reviewing the SMB10J10HE3/52 datasheet, SMB10J10HE3/52 pinout, SMB10J10HE3/52 application, or SMB10J10HE3/52 equivalent, key selection criteria include clamping performance under 10/1000 µs transients, AEC-Q101 qualification status, unidirectional polarity, RoHS-compliant HE3 suffix, and thermal resistance (RθJA = 72 °C/W) for board-level thermal design.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: when reverse voltage exceeds VBR (11.1–12.3 V), it avalanches to limit transient energy by diverting surge current to ground. Its glass-passivated junction ensures stable breakdown and low leakage (<5.0 µA at VWM).
Designed for 10/1000 µs surge waveforms per ANSI/IEEE C62.35, it delivers 5.0 A peak pulse current (IPPM) while clamping to ≤17.0 V - critical for safeguarding 12 V automotive electronics against load dump and ISO 7637-2 pulses. The DO-214AA package supports automated placement and meets MSL level 1 (260 °C reflow peak).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 10 V - maximum continuous reverse operating voltage before conduction begins; sets threshold for normal operation in 12 V systems. |
| VBR (Breakdown Voltage) | 11.1–12.3 V at 1.0 mA - guaranteed avalanche initiation range; ensures reliable triggering above system nominal voltage. |
| VC (Clamping Voltage) | 17.0 V at IPPM = 5.0 A - maximum voltage seen by protected circuit during full-rated surge; limits stress on downstream ICs. |
| PPPM (Peak Pulse Power) | 1000 W (10/1000 µs) - energy-handling capacity for standardized surges; enables robust protection in automotive and industrial environments. |
| RθJA | 72 °C/W - junction-to-ambient thermal resistance on 0.2" × 0.2" copper pads; informs PCB copper area requirements for thermal management. |
| Polarity | Unidirectional - cathode marked with band; blocks forward current beyond VF ≈ 3.5 V at 50 A, suitable for DC rail protection only. |
| AEC-Q101 Qualified | Yes - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD; required for under-hood and powertrain applications. |
Pinout & Package
Package: DO-214AA (SMB), surface-mount, molded plastic case with matte tin-plated leads. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); cathode indicated by color band on one end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Surge return path | Connected to system ground or low-side reference; completes clamping path during transient events. |
| Cathode | Protected line connection | Connected to line being protected (e.g., battery feed); avalanche conduction occurs between cathode and anode when V > VBR. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable, repeatable breakdown voltage and low leakage (<5.0 µA at VWM), critical for long-term reliability in harsh environments. |
| AEC-Q101 qualification | Validates suitability for automotive applications including engine control units, body electronics, and ADAS power supplies. |
| Low incremental surge resistance | Enables tight clamping (VC = 17.0 V) even at high IPPM, minimizing voltage overshoot on sensitive 12 V loads. |
| MSL Level 1 rating | Supports standard SMT reflow profiles up to 260 °C peak without moisture-induced damage, eliminating bake requirements. |
| RoHS-compliant HE3 suffix | Indicates AEC-Q101 qualified, whisker-tested (JESD 201 Class 2), and lead-free construction - meets automotive sourcing mandates. |
Applications
| Automotive Power Input Protection | Industrial DC Power Rail Clamping |
|---|---|
|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump transients (ISO 7637-2 Pulse 5a) and alternator overshoot. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between battery rail and ground, clamping surges within microseconds. Use Value: Limits voltage to ≤17.0 V during 1000 W transients, preventing latch-up or destruction of MCU power inputs and CAN transceivers. |
Use Scenario: Safeguarding programmable logic controllers (PLCs) and motor drives against inductive switching spikes on 24 V DC supplies. IC Role / Device Role / Timing Role: Standoff-rated TVS connected across input terminals to clamp fast-rising transients from relay coils or solenoids. Use Value: Withstands 5.0 A peak surge current while maintaining clamping below 17.0 V, preserving isolation barriers and analog front-end integrity. |
| Automotive Sensor Signal Line Protection | Consumer Power Adapter Output Protection |
|
Use Scenario: Shielding LIN bus or analog sensor outputs (e.g., temperature, pressure) from ESD and cable discharge events in vehicle cabins. IC Role / Device Role / Timing Role: Low-leakage (≤5.0 µA) unidirectional TVS placed inline with signal line and ground, leveraging fast response time. Use Value: Clamps 8 kV contact ESD per IEC 61000-4-2 to <17.0 V without distorting low-current sensor signals or loading the line. |
Use Scenario: Securing USB-C PD and 12 V wall adapter outputs against overvoltage faults caused by regulator failure or hot-plug transients. IC Role / Device Role / Timing Role: Final-stage TVS on output rail, acting as last-resort clamp before connector to prevent damage to connected devices. Use Value: Delivers 1000 W surge handling in compact SMB package, enabling cost-effective, space-efficient protection without derating concerns. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ10A-E3/52 | Same DO-214AA package and 10 V VWM, but not AEC-Q101 qualified; RθJA = 75 °C/W vs. 72 °C/W. | Approved for commercial/industrial use only; excluded from automotive production BOMs requiring AEC-Q101. | Select when AEC-Q101 is not mandated and cost sensitivity outweighs qualification requirements. |
| 1.5SMC10A | Higher package thermal resistance (RθJA = 85 °C/W), larger DO-214AB (SMC) footprint, same 10 V VWM and 17 V VC. | Requires more PCB area; less suitable for dense automotive modules but offers higher mechanical robustness in vibration-prone industrial mounts. | Prefer where board space allows and mechanical durability is prioritized over miniaturization. |
Compared with SMBJ10A-E3/52 and 1.5SMC10A, SMB10J10HE3/52 uniquely combines AEC-Q101 qualification, lowest thermal resistance in its class, and HE3 whisker-tested terminations - making it the optimal choice for automotive Tier-1 power rail designs demanding zero field failures.
Availability
SMB10J10HE3/52 is available at Aetrix Electronics and suitable for automotive electronic control units, industrial programmable logic controllers, and consumer power adapter designs requiring stable component supply, AEC-Q101 compliance, and high-reliability transient suppression.
Supply support for SMB10J10HE3/52 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 reliability, efficiency, and automotive-grade qualification.
The SMB10J series belongs to Vishay's TRANSZORB® TVS platform, engineered specifically for high-power-density, AEC-Q101-compliant surge protection in automotive and industrial power systems.
FAQ
What is the clamping voltage of SMB10J10HE3/52 at its rated peak pulse current?
The SMB10J10HE3/52 has a maximum clamping voltage (VC) of 17.0 V when subjected to its rated peak pulse current (IPPM) of 5.0 A using a 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and guarantees that protected circuits will not experience voltages exceeding 17.0 V during standardized surge events - a critical parameter for safeguarding 12 V automotive electronics. The SMB10J10HE3/52 maintains this clamping performance across its qualified operating temperature range.
Is SMB10J10HE3/52 suitable for bi-directional transient protection?
No, SMB10J10HE3/52 is a unidirectional TVS diode, as confirmed by its part number suffix "A" (not "CA") and electrical specifications listing only uni-directional parameters (e.g., IFSM = 100 A, VF = 3.5 V). It conducts only in reverse bias above VBR and blocks forward current beyond ~3.5 V. For bi-directional protection, Vishay offers the SMB8J10CA series. The SMB10J10HE3/52 must be oriented with its cathode band toward the protected line to function correctly.
What does the "HE3" suffix signify in SMB10J10HE3/52?
The "HE3" suffix in SMB10J10HE3/52 indicates two key qualifications: RoHS-compliant construction and AEC-Q101 qualification for automotive applications. Additionally, "HE3" denotes compliance with JESD 201 Class 2 whisker testing - stricter than the Class 1A requirement for "E3" parts - ensuring enhanced reliability of matte tin-plated leads under thermal cycling. This makes SMB10J10HE3/52 appropriate for under-hood and safety-critical automotive modules where long-term interconnect integrity is mandatory.
How does SMB10J10HE3/52 differ from SMBJ10A-E3/52?
SMB10J10HE3/52 and SMBJ10A-E3/52 share identical electrical ratings (VWM = 10 V, VC = 17.0 V, PPPM = 1000 W) and DO-214AA packaging, but differ critically in qualification and construction: SMB10J10HE3/52 is AEC-Q101 qualified and HE3 whisker-tested, whereas SMBJ10A-E3/52 is commercial-grade only (E3 suffix, no AEC-Q101). Their thermal resistances also differ slightly (72 °C/W vs. 75 °C/W). For automotive production, SMB10J10HE3/52 is the compliant choice; SMBJ10A-E3/52 serves non-automotive applications.
What PCB pad layout is recommended for optimal thermal performance of SMB10J10HE3/52?
Vishay specifies a minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pad area per terminal for SMB10J10HE3/52 to achieve its rated RθJA of 72 °C/W. These pads must be thermally connected to internal or external ground planes via multiple vias to dissipate surge energy and maintain junction temperature below 150 °C during repetitive events. Deviating from this layout increases thermal resistance and risks premature failure under sustained surge conditions. The SMB10J10HE3/52 datasheet provides exact mounting pad dimensions in inches and millimeters.
SMB10J10HE3/52 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):
- 10V
- Voltage - Breakdown (Min):
- 11.1V
- Voltage - Clamping (Max) @ Ipp:
- 18.8V
- Current - Peak Pulse (10/1000µs):
- 53.2A
- 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)
SMB10J10HE3/52 FAQ
1.How can I place an order for SMB10J10HE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J10HE3/52 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 SMB10J10HE3/52 reliable?
The price and inventory of SMB10J10HE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB10J10HE3/52 is usually 5 days.
3.What payment methods are accepted for SMB10J10HE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J10HE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J10HE3/52?
SMB10J10HE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J10HE3/52 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 SMB10J10HE3/52?
For technical support, including SMB10J10HE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J10HE3/52 requirements.
6.How does Aetrix verify that SMB10J10HE3/52 is sourced from the original manufacturer or authorized distributors?
All SMB10J10HE3/52 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 SMB10J10HE3/52 meets industry standards.
7.What is the process for return or replacement of SMB10J10HE3/52?
All SMB10J10HE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J10HE3/52, 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 SMB10J10HE3/52 part is unused and in its original packaging.
Return procedure for SMB10J10HE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J10HE3/52 Tags
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