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Vishay General Semiconductor - Diodes Division SMB10J22HE3/52
- Part No.:
- SMB10J22HE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J22HE3/52.pdf
- Description:
- TVS DIODE 22VWM 39.4VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,025
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Product details
Overview
SMB10J22HE3/52 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in DO-214AA (SMB) package, designed for high-energy surge protection on power and signal lines. It features a 22 V stand-off voltage (VWM), 24.4–26.9 V breakdown voltage (VBR) at 1 mA, 1000 W peak pulse power (10/1000 µs), 28.2 A peak pulse current (IPPM), and clamps to ≤35.5 V at rated surge. It is AEC-Q101 qualified and used in automotive power rail and sensor interface protection.
For engineers reviewing the SMB10J22HE3/52 datasheet, SMB10J22HE3/52 pinout, SMB10J22HE3/52 application, or SMB10J22HE3/52 equivalent, key selection criteria include unidirectional polarity, 22 V working voltage, 1000 W surge rating, AEC-Q101 qualification, RoHS-compliant HE3 suffix, and DO-214AA thermal and mounting compatibility with automated SMT assembly.
Technical Context
This TVS diode operates as a clamping device that remains non-conductive below VWM (22 V) and rapidly avalanches above VBR to limit transient overvoltages. Its glass-passivated junction ensures stable leakage (<1 µA at VWM) and repeatable breakdown behavior under repetitive surges.
The device uses a low-inductance, surface-mount DO-214AA package optimized for fast response (<1 ns) and high-power dissipation (1000 W, 10/1000 µs), with thermal resistance RθJA = 72 °C/W and RθJL = 20 °C/W - enabling robust operation up to TJ = 150 °C in automotive under-hood environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 22 V - maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 24.4 V / 26.9 V at 1 mA - precise avalanche onset range ensuring reliable turn-on margin |
| VC @ IPPM | ≤35.5 V at 28.2 A - clamping voltage limiting downstream IC stress during 1000 W transients |
| PPPM | 1000 W (10/1000 µs) - energy-handling capacity for ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 surges |
| Leakage ID | ≤1.0 µA at 22 V - negligible standby power loss and minimal signal distortion on protected lines |
| TJ max | 150 °C - supports under-hood automotive deployment without derating at ambient ≤125 °C |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD |
Pinout & Package
DO-214AA (SMB) surface-mount package: molded epoxy case with matte tin-plated leads, 0.220" × 0.130" footprint, cathode band marking on one end. Complies with UL 94 V-0, MSL Level 1 (260 °C peak reflow), and J-STD-002/JESD 22-B102 solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or low-impedance return path; defines conduction direction in unidirectional mode |
| Cathode (banded end) | High-side surge input terminal | Receives transient energy; avalanche conduction occurs from cathode to anode when VAK > VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive electronics per stress test requirements - enables use in engine control, ADAS, and body modules |
| Glass-passivated junction | Ensures stable VBR tolerance, low leakage drift over temperature, and long-term reliability under humidity and bias stress |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., load dump, inductive kickback), improving clamping precision |
| MSL Level 1 rating | Allows unlimited floor life and single-reflow processing at 260 °C peak - compatible with standard SMT lines without dry pack handling |
| RoHS-compliant HE3 suffix | Meets JESD 201 Class 2 whisker resistance - suitable for high-reliability industrial and automotive PCB assemblies |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 24 V battery-fed ECUs against load dump (ISO 7637-2 Pulse 5a) and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VBAT and GND to clamp surges up to 1000 W without failure. Use Value: Limits voltage to ≤35.5 V during 28.2 A transients, preventing damage to MCU power supplies and CAN transceivers. | Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) in PLC I/O modules exposed to field wiring surges. IC Role / Device Role / Timing Role: TVS connected across differential or single-ended signal lines to shunt induced EFT/ESD energy to ground. Use Value: Sub-µA leakage preserves signal integrity; fast <1 ns response prevents latch-up in precision ADC front-ends. |
| Automotive Body Control Module (BCM) | Telecom DC Power Input Protection |
Use Scenario: Protecting LIN bus transceivers and LED driver inputs in door modules subjected to cable discharge events. IC Role / Device Role / Timing Role: Unidirectional suppression on 12 V supply rail feeding LIN PHY and discrete drivers. Use Value: 22 V VWM matches nominal 12 V system with margin; AEC-Q101 ensures lifetime reliability in vibration-prone locations. | Use Scenario: Securing -48 V telecom power inputs against lightning-induced surges per IEC 61000-4-5 Level 4. IC Role / Device Role / Timing Role: Paired unidirectional TVS on positive and negative rails of DC feed to power shelf controllers. Use Value: 1000 W rating handles 4 kV/2 kA combination wave; DO-214AA footprint allows compact dual-rail layout. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ22A-E3/52 | Same DO-214AA package, 22 V VWM, but rated for 600 W PPPM (vs. 1000 W); no AEC-Q101 qualification | Commercial/industrial only; not approved for automotive safety-critical systems | Select when cost sensitivity outweighs automotive qualification and higher surge margin |
| 1.5SMC22AHE3/A | DO-214AB (SMC) package, same 22 V VWM and 1000 W rating, AEC-Q101 qualified, but larger footprint (0.315" × 0.236") | Requires PCB layout change; better thermal performance (RθJA = 35 °C/W) for sustained surge duty | Select when higher thermal mass or legacy SMC board space is available and lower RθJA is needed |
Compared with SMBJ22A-E3/52, SMB10J22HE3/52 delivers +67% peak power headroom and automotive qualification; versus 1.5SMC22AHE3/A, it offers 30% smaller footprint and identical surge capability but with higher thermal resistance - making it optimal for space-constrained AEC-Q101 designs where 72 °C/W RθJA suffices.
Availability
SMB10J22HE3/52 is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, and telecom power input protection requiring stable component supply, AEC-Q101 compliance, and high-energy transient immunity.
Supply support for SMB10J22HE3/52 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability, power density, and automotive-grade validation.
The SMB10J series belongs to Vishay's TRANSZORB® high-power TVS platform, engineered specifically for AEC-Q101-compliant surge protection in harsh automotive and industrial environments where 1000 W clamping and low-leakage stability are critical.
FAQ
What is the polarity configuration of SMB10J22HE3/52?
SMB10J22HE3/52 is a unidirectional transient voltage suppressor diode. Its cathode is marked by a band on the DO-214AA package body, and it conducts only when the cathode is at a higher potential than the anode - making it suitable for DC power line protection where polarity is fixed. This differs from bi-directional variants like SMB8J22CA, which protect AC or bidirectional signals.
Does SMB10J22HE3/52 meet automotive qualification standards?
Yes, SMB10J22HE3/52 is AEC-Q101 qualified, as confirmed by Vishay's documentation (Document Number: 88422, Revision: 12-Nov-12). The HE3 suffix explicitly denotes AEC-Q101 qualification, including testing for temperature cycling, high-temperature reverse bias, and ESD robustness - validating its use in engine control units, body electronics, and ADAS subsystems.
What is the clamping voltage of SMB10J22HE3/52 under full-rated surge conditions?
The maximum clamping voltage VC of SMB10J22HE3/52 is 35.5 V at 28.2 A peak pulse current (IPPM), measured with a 10/1000 µs waveform. This value ensures downstream components - such as 3.3 V or 5 V LDOs, CAN transceivers, or microcontrollers - remain within safe absolute maximum ratings during standardized surge events like ISO 7637-2 Pulse 5a.
How does the HE3 suffix differ from the E3 suffix in SMB10J22HE3/52?
The HE3 suffix in SMB10J22HE3/52 indicates RoHS compliance plus AEC-Q101 qualification and JESD 201 Class 2 whisker resistance. In contrast, the E3 suffix (e.g., SMB10J22A-E3/52) denotes RoHS compliance and JESD 201 Class 1A whisker resistance but lacks AEC-Q101 validation - making HE3 mandatory for automotive applications and preferred for high-reliability industrial deployments.
What PCB pad layout is recommended for SMB10J22HE3/52 to achieve rated thermal performance?
Vishay specifies that SMB10J22HE3/52 achieves its rated 1000 W peak pulse power and thermal resistance (RθJA = 72 °C/W) when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. Smaller pads reduce surge capability and increase junction temperature - so adherence to this layout is essential for automotive and industrial surge immunity compliance.
SMB10J22HE3/52 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):
- 22V
- Voltage - Breakdown (Min):
- 24.4V
- Voltage - Clamping (Max) @ Ipp:
- 39.4V
- Current - Peak Pulse (10/1000µs):
- 25.4A
- 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)
SMB10J22HE3/52 FAQ
1.How can I place an order for SMB10J22HE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J22HE3/52 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 SMB10J22HE3/52 reliable?
The price and inventory of SMB10J22HE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB10J22HE3/52 is usually 5 days.
3.What payment methods are accepted for SMB10J22HE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J22HE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J22HE3/52?
SMB10J22HE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J22HE3/52 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 SMB10J22HE3/52?
For technical support, including SMB10J22HE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J22HE3/52 requirements.
6.How does Aetrix verify that SMB10J22HE3/52 is sourced from the original manufacturer or authorized distributors?
All SMB10J22HE3/52 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 SMB10J22HE3/52 meets industry standards.
7.What is the process for return or replacement of SMB10J22HE3/52?
All SMB10J22HE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J22HE3/52, 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 SMB10J22HE3/52 part is unused and in its original packaging.
Return procedure for SMB10J22HE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J22HE3/52 Tags
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