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Vishay General Semiconductor - Diodes Division SMB10J22A-E3/52
- Part No.:
- SMB10J22A-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J22A-E3/52.pdf
- Description:
- TVS DIODE 22VWM 35.5VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,578
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Product details
Overview
SMB10J22A-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 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 under surge conditions. Used in automotive power supply inputs and industrial sensor interfaces.
For engineers reviewing the SMB10J22A-E3/52 datasheet, SMB10J22A-E3/52 pinout, SMB10J22A-E3/52 application, or SMB10J22A-E3/52 equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, 150 °C max junction temperature, RoHS-compliant matte tin terminations, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates as a clamping device that remains high-impedance below VWM (22 V) and rapidly transitions to low-impedance conduction above VBR (min 24.4 V), limiting transient overvoltages to ≤35.5 V at 28.2 A. Its glass-passivated junction ensures stable leakage (<1.0 µA at VWM) and fast response time (<1 ns).
Thermal performance is defined by RθJA = 72 °C/W and RθJL = 20 °C/W, enabling reliable operation up to 150 °C junction temperature. The device meets MSL level 1 per J-STD-020 and supports peak reflow temperatures up to 260 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 22 V - maximum continuous reverse operating voltage before clamping initiates |
| VBR (min/max) | 24.4 V / 26.9 V at 1 mA - precise breakdown threshold defining turn-on sensitivity |
| VC @ IPPM | ≤35.5 V at 28.2 A - clamping voltage during 10/1000 µs surge, critical for downstream IC protection |
| PPPM | 1000 W - peak pulse power handling capability under standardized surge waveform |
| ID @ VWM | ≤1.0 µA - ultra-low reverse leakage ensuring minimal standby power loss |
| TJ max. | +150 °C - maximum junction temperature supporting under-hood automotive use |
| Polarity | Unidirectional - cathode marked with band; blocks reverse current until breakdown |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H). Mounting requires 5.0 mm × 5.0 mm copper pads per terminal.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / surge return path | Connected to protected line's lower-potential side (e.g., GND or return rail) |
| Cathode | Clamping node / surge sink | Marked with color band; connected to protected line's higher-potential side (e.g., +24 V rail) |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and body electronics |
| Glass passivated junction | Ensures long-term stability of VBR and low parameter drift across temperature and life cycles |
| MSL Level 1 rating | Enables single-reflow assembly without moisture sensitivity concerns (peak 260 °C) |
| Low incremental surge resistance | Minimizes voltage overshoot during fast transients, improving clamping precision |
| UL 94 V-0 molding compound | Provides flame-retardant housing required for industrial and automotive safety compliance |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 24 V battery-fed ECUs against load dump and alternator transients per ISO 7637-2 Pulse 5a. IC Role / Device Role / Timing Role: Unidirectional TVS placed between +24 V rail and chassis ground to clamp surges >35 V. Use Value: Limits transient voltage to ≤35.5 V, safeguarding downstream PMICs and microcontrollers rated for 36 V absolute max. | Use Scenario: Shielding analog output lines (e.g., 4–20 mA current loop) from ESD and inductive switching noise in factory automation systems. IC Role / Device Role / Timing Role: TVS mounted differential across signal and return, referenced to local ground. Use Value: Sub-1 ns response prevents latch-up in op-amps and ADC drivers while maintaining <1 µA leakage at 22 V. |
| Telecom DC Power Feeds | Consumer Appliance Motor Drive Inputs |
Use Scenario: Safeguarding PoE-powered equipment front-end rectifiers and DC-DC converters from lightning-induced surges on 48 V input lines. IC Role / Device Role / Timing Role: Unidirectional TVS on primary-side DC bus, cathode tied to +48 V, anode to ground. Use Value: 1000 W PPPM rating handles repetitive 10/1000 µs surges without degradation, meeting IEC 61000-4-5 Level 4 requirements. | Use Scenario: Protecting BLDC motor driver ICs from back-EMF spikes generated during commutation in smart home appliances. IC Role / Device Role / Timing Role: TVS placed across H-bridge high-side FET source and ground to absorb inductive kickback. Use Value: Clamping at ≤35.5 V prevents gate oxide rupture in 40 V-rated MOSFETs and avoids overvoltage shutdown in gate drivers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ22A-E3/52 | Same SMB package, identical VWM/VBR/VC specs, but rated for 600 W PPPM (vs. 1000 W) | Limited to lower-energy transients; unsuitable for ISO 7637-2 Pulse 5a or IEC 61000-4-5 Level 4 | Select SMB10J22A-E3/52 when full 1000 W surge immunity is required. |
| SMCJ22A-E3/52 | Higher-power SMC (DO-214AB) package, same electrical specs, 1500 W PPPM rating | Larger footprint (7.11 mm × 6.22 mm); not drop-in compatible with SMB layout | Choose SMCJ22A-E3/52 only if board space allows larger package and higher power margin is needed. |
Compared with SMBJ22A-E3/52 and SMCJ22A-E3/52, SMB10J22A-E3/52 uniquely delivers 1000 W surge capability in the compact SMB footprint while retaining AEC-Q101 qualification-enabling automotive-grade protection without layout redesign or thermal derating penalties.
Availability
SMB10J22A-E3/52 is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and telecom power feed circuits requiring stable component supply and AEC-Q101 compliance.
Supply support for SMB10J22A-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 reliability and automotive qualification.
The SMB10JxxA series belongs to Vishay's high-power-density TRANSZORB® TVS family, engineered specifically for robust transient suppression in space-constrained automotive and industrial power systems where 1000 W surge handling and AEC-Q101 validation are mandatory.
FAQ
What is the maximum clamping voltage of SMB10J22A-E3/52 under a 10/1000 µs surge?
The SMB10J22A-E3/52 clamps to a maximum of 35.5 V when subjected to its rated peak pulse current of 28.2 A (10/1000 µs waveform). This value is guaranteed per the Vishay datasheet Document Number 88422 and defines the upper voltage limit imposed on protected circuitry during transient events. Designers use this VC value to verify margin against downstream IC absolute maximum ratings.
Is SMB10J22A-E3/52 qualified for automotive applications?
Yes, SMB10J22A-E3/52 is AEC-Q101 qualified, as confirmed in the Vishay datasheet revision 09-Jan-2024. This qualification covers stress testing for temperature cycling, humidity bias, mechanical shock, and high-temperature operating life-making SMB10J22A-E3/52 suitable for under-hood and chassis-mounted automotive electronics including body control modules and ADAS power supplies.
What is the reverse leakage current specification for SMB10J22A-E3/52 at its stand-off voltage?
At its 22 V stand-off voltage (VWM), the SMB10J22A-E3/52 exhibits a maximum reverse leakage current (ID) of 1.0 µA at 25 °C, per the Vishay datasheet. This ultra-low leakage ensures negligible power loss in always-on systems and avoids false triggering in high-impedance sensing circuits, supporting precision analog and battery-backed applications.
Does SMB10J22A-E3/52 have a bidirectional variant?
No-SMB10J22A-E3/52 is strictly unidirectional. Its marking band denotes the cathode terminal, and it conducts only in reverse breakdown. For bidirectional protection at 22 V, Vishay offers SMB8J22CA (800 W PPPM, same VWM/VBR range), which lacks the "J" suffix and uses "CA" suffix instead of "A". These are distinct part numbers with different surge ratings and polarity behavior.
What is the thermal resistance from junction to ambient for SMB10J22A-E3/52?
The SMB10J22A-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, as specified in the Vishay datasheet. This value enables accurate junction temperature estimation under steady-state power dissipation and guides PCB copper area design for thermal management in high-reliability applications.
SMB10J22A-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):
- 22V
- Voltage - Breakdown (Min):
- 24.4V
- Voltage - Clamping (Max) @ Ipp:
- 35.5V
- Current - Peak Pulse (10/1000µs):
- 28.2A
- 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)
SMB10J22A-E3/52 FAQ
1.How can I place an order for SMB10J22A-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J22A-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 SMB10J22A-E3/52 reliable?
The price and inventory of SMB10J22A-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 SMB10J22A-E3/52 is usually 5 days.
3.What payment methods are accepted for SMB10J22A-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J22A-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J22A-E3/52?
SMB10J22A-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J22A-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 SMB10J22A-E3/52?
For technical support, including SMB10J22A-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J22A-E3/52 requirements.
6.How does Aetrix verify that SMB10J22A-E3/52 is sourced from the original manufacturer or authorized distributors?
All SMB10J22A-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 SMB10J22A-E3/52 meets industry standards.
7.What is the process for return or replacement of SMB10J22A-E3/52?
All SMB10J22A-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J22A-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 SMB10J22A-E3/52 part is unused and in its original packaging.
Return procedure for SMB10J22A-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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