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Vishay General Semiconductor - Diodes Division SMB10J22A-M3/5B
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- Part No.:
- SMB10J22A-M3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J22A-M3/5B.pdf
- Description:
- TVS DIODE 22VWM 35.5VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,275
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Product details
Overview
SMB10J22A-M3/5B 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, 35.5 V clamping voltage (VC) at 28.2 A peak pulse current, and 1000 W peak pulse power rating with 10/1000 µs waveform.
For engineers reviewing the SMB10J22A-M3/5B datasheet, SMB10J22A-M3/5B pinout, SMB10J22A-M3/5B application, or SMB10J22A-M3/5B equivalent, key selection criteria include clamping performance under 28.2 A surge, compatibility with automotive-grade AEC-Q101 requirements (via HM3 suffix variants), thermal resistance (RθJA = 72 °C/W), and halogen-free RoHS compliance per M3 suffix.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector, responding within picoseconds to transients exceeding its VWM threshold. Its glass-passivated junction ensures stable breakdown behavior and low leakage (<1.0 µA at 22 V), while the SMB package supports automated SMT placement and meets UL 94 V-0 flammability rating.
The device is rated for -55 °C to +150 °C operating junction temperature and delivers 100 A non-repetitive forward surge current capability. Its 20 °C/W junction-to-lead thermal resistance enables effective heat dissipation when mounted on recommended 5.0 mm × 5.0 mm copper pads per terminal.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 22 V - Maximum continuous reverse operating voltage before conduction begins |
| VBR (min/max) | 24.4 V / 26.9 V at 1 mA - Ensures reliable turn-on above system nominal voltage with margin |
| VC @ IPPM | 35.5 V at 28.2 A - Clamps induced surges to safe levels for downstream 24 V logic or power ICs |
| PPPM | 1000 W (10/1000 µs) - Withstands high-energy transients common in automotive load-dump or inductive switching |
| IFSM | 100 A (8.3 ms half-sine) - Supports robust handling of short-duration overcurrent events |
| TJ max | +150 °C - Enables operation in under-hood automotive environments and industrial enclosures |
| RθJA | 72 °C/W - Requires minimum 5.0 mm × 5.0 mm copper pad per terminal for thermal derating compliance |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, unidirectional polarity indicated by cathode band. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); matte tin-plated leads, J-STD-002 solderable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference node | Connected to ground or low-voltage return path; defines current flow direction during clamping |
| Cathode | Protected line input | Connected to supply rail or signal line; conducts surge current to anode when VIN > VC |
Key Features
| Feature | Design Value |
|---|---|
| Halogen-free & RoHS-compliant | M3 suffix confirms full compliance with environmental regulations and JEDEC JESD201 Class 2 whisker resistance |
| AEC-Q101 qualified variant available | HG3/HM3 suffix versions meet automotive qualification-SMB10J22A-M3/5B itself is commercial grade but shares identical die and construction |
| Low incremental surge resistance | Enables tighter clamping (35.5 V at 28.2 A) versus higher-resistance TVS devices, reducing stress on protected ICs |
| MSL Level 1 (260 °C peak) | Supports standard lead-free reflow without moisture sensitivity concerns or baking requirements |
| Glass-passivated junction | Provides stable VBR tolerance and long-term reliability under repeated surge stress |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 24 V CAN bus power inputs against ISO 7637-2 pulse 1, 2a, and 5a transients in vehicle ECUs. IC Role / Device Role / Timing Role: Shunt clamping element placed between VBAT and chassis ground, activated only during overvoltage events. Use Value: Limits voltage seen by downstream DC/DC converters and CAN transceivers to ≤35.5 V, preventing latch-up or permanent damage. | Use Scenario: Safeguarding analog outputs of pressure/temperature sensors connected to PLC I/O modules exposed to motor drive noise. IC Role / Device Role / Timing Role: Bidirectional-capable design not required; unidirectional SMB10J22A-M3/5B used on supply side with cathode to sensor VDD. Use Value: Absorbs 1000 W surges from nearby contactor switching without degrading signal integrity or requiring additional filtering. |
| Telecom DC Power Input Protection | Consumer Appliance Motor Control Board |
Use Scenario: Guarding 24 V auxiliary power inputs of PoE-powered network switches against lightning-induced surges on building wiring. IC Role / Device Role / Timing Role: First-line transient suppressor upstream of primary DC/DC stage; coordinates with MOVs and gas discharge tubes in multi-stage architecture. Use Value: Fast response (<1 ns) and low clamping voltage ensure secondary protection stages remain untriggered during moderate transients. | Use Scenario: Protecting microcontroller GPIOs and gate drivers on washing machine main control boards subjected to brush-commutator motor back-EMF spikes. IC Role / Device Role / Timing Role: Mounted directly across motor driver supply pins (VDD–GND), with cathode tied to VDD. Use Value: Withstands repetitive 100 A surge currents (8.3 ms) from motor commutation, extending board lifetime beyond IEC 61000-4-4 level 4 requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ22A-M3/5B | Same SMB package, identical VWM/VC, but lower PPPM = 600 W (vs. 1000 W) | Suitable for lower-energy transients (e.g., ESD-only); insufficient for load-dump or high-current inductive switching | Select SMB10J22A-M3/5B when 1000 W surge immunity is required; SMBJ22A-M3/5B offers cost savings where 600 W suffices |
| 1.5SMC22A-M3/5B | Higher-power SMC package (1500 W), same VWM/VC, larger footprint (7.11 mm × 6.22 mm) | Used where PCB space allows and higher surge margin is needed (e.g., industrial AC/DC front ends) | Choose SMB10J22A-M3/5B for space-constrained 24 V DC designs; 1.5SMC22A-M3/5B where layout permits larger package and extra headroom is critical |
Compared with SMBJ22A-M3/5B and 1.5SMC22A-M3/5B, SMB10J22A-M3/5B uniquely balances 1000 W surge capability with SMB footprint-enabling automotive-grade protection without SMC-level board area penalty or SMBJ-level power limitation.
Availability
SMB10J22A-M3/5B is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, telecom power inputs, and consumer appliance motor control boards requiring stable component supply and halogen-free compliance.
Supply support for SMB10J22A-M3/5B 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 application-specific qualification.
The SMB10JxxA series belongs to Vishay's TRANSZORB® high-power TVS family, engineered specifically for demanding transient suppression in automotive, industrial, and telecom infrastructure where 1000 W surge handling in compact SMB packages is essential.
FAQ
What is the clamping voltage of SMB10J22A-M3/5B at its rated peak pulse current?
The SMB10J22A-M3/5B has a maximum clamping voltage (VC) of 35.5 V at its specified peak pulse current (IPPM) of 28.2 A, measured using a 10/1000 µs waveform. This value ensures protected circuits-such as 24 V microcontrollers or CAN transceivers-remain below destructive voltage thresholds during surge events. The SMB10J22A-M3/5B achieves this with low dynamic impedance, verified per ANSI/IEEE C62.35 standards.
Is SMB10J22A-M3/5B qualified to AEC-Q101?
No, SMB10J22A-M3/5B carries the M3 suffix indicating halogen-free RoHS compliance and commercial-grade qualification. For AEC-Q101 qualification, select the HM3 suffix variant (e.g., SMB10J22AHM3_B/I), which uses the identical silicon die and SMB package but undergoes additional automotive stress testing and traceability controls. The SMB10J22A-M3/5B itself is not certified to AEC-Q101.
What is the thermal resistance of SMB10J22A-M3/5B, and how does it affect PCB layout?
The SMB10J22A-M3/5B 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. To maintain safe junction temperatures under 1000 W surge conditions, designers must implement these minimum pad sizes and avoid excessive copper isolation. Reducing pad area increases RθJA, risking thermal runaway during repetitive surges-so the SMB10J22A-M3/5B layout must follow Vishay's recommended footprint precisely.
Can SMB10J22A-M3/5B be used in bidirectional configurations?
No, SMB10J22A-M3/5B is a unidirectional TVS diode, identifiable by its cathode band marking. Bidirectional operation requires a symmetrical device such as SMB8J22CA-M3/5B (which shares the same VWM and VC but supports AC or dual-polarity transients). Using SMB10J22A-M3/5B in reverse-biased configurations risks permanent breakdown; always verify polarity alignment in-circuit before deploying the SMB10J22A-M3/5B.
What packaging options are available for SMB10J22A-M3/5B?
SMB10J22A-M3/5B is supplied in 13-inch diameter plastic tape and reel format, with a base quantity of 3200 units per reel (package code "5B"). This configuration supports high-volume automated assembly and is compatible with standard SMT pick-and-place equipment. Alternative packaging includes 7-inch reels (code "52", 750 units) and bulk options-but SMB10J22A-M3/5B specifically ships in 5B format per Vishay's ordering matrix.
SMB10J22A-M3/5B 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 (SMBJ)
SMB10J22A-M3/5B FAQ
1.How can I place an order for SMB10J22A-M3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J22A-M3/5B 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-M3/5B reliable?
The price and inventory of SMB10J22A-M3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB10J22A-M3/5B is usually 5 days.
3.What payment methods are accepted for SMB10J22A-M3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J22A-M3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J22A-M3/5B?
SMB10J22A-M3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J22A-M3/5B 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-M3/5B?
For technical support, including SMB10J22A-M3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J22A-M3/5B requirements.
6.How does Aetrix verify that SMB10J22A-M3/5B is sourced from the original manufacturer or authorized distributors?
All SMB10J22A-M3/5B 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-M3/5B meets industry standards.
7.What is the process for return or replacement of SMB10J22A-M3/5B?
All SMB10J22A-M3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J22A-M3/5B, 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-M3/5B part is unused and in its original packaging.
Return procedure for SMB10J22A-M3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J22A-M3/5B Tags
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Diodes Incorporated
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Diodes Incorporated
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