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Vishay General Semiconductor - Diodes Division SMB10J22A-M3/52
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- Part No.:
- SMB10J22A-M3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J22A-M3/52.pdf
- Description:
- TVS DIODE 22VWM 35.5VC DO214AA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SMB10J22A-M3/52 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, 35.5 V clamping voltage (VC) at 28.2 A peak pulse current (IPPM), and 1000 W peak pulse power (PPPM) with 10/1000 µs waveform - deployed in automotive ECUs, industrial sensor interfaces, and power supply input stages.
For engineers reviewing the SMB10J22A-M3/52 datasheet, SMB10J22A-M3/52 pinout, SMB10J22A-M3/52 application, or SMB10J22A-M3/52 equivalent, key selection criteria include clamping performance under 28.2 A surge, thermal resistance (RθJA = 72 °C/W), AEC-Q101 qualification status, and halogen-free RoHS compliance per M3 suffix - critical for automotive-grade reliability and PCB assembly compatibility.
Technical Context
This device operates as a unidirectional avalanche diode, leveraging glass-passivated junction technology to achieve fast response time (<1 ns) and low incremental surge resistance. Its clamping behavior is defined by a 10/1000 µs standard surge waveform, with derating above 25 °C per Fig. 2 and thermal resistance of 72 °C/W (junction-to-ambient) on 0.2" × 0.2" copper pads.
The SMB10J22A-M3/52 is rated for -55 °C to +150 °C operating junction temperature, supports 100 A non-repetitive forward surge current (IFSM), and meets J-STD-020 MSL Level 1 with 260 °C reflow peak - confirming suitability for automated SMT placement without moisture sensitivity concerns.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 22 V - maximum continuous reverse working voltage before leakage exceeds 1 µA; defines safe operating DC rail margin |
| VBR (min/max) | 24.4 V / 26.9 V at 1 mA - guaranteed avalanche initiation range; ensures consistent turn-on across production lots |
| VC @ IPPM | 35.5 V at 28.2 A - clamped voltage during full 1000 W surge; determines protected IC's maximum stress level |
| PPPM | 1000 W (10/1000 µs) - peak transient energy handling capacity; validates robustness against ISO 7637-2 Pulse 1/2a/5a |
| RθJA | 72 °C/W - thermal resistance on standard 0.2" × 0.2" copper pads; enables thermal design margin estimation for board layout |
| TJ max | +150 °C - maximum junction temperature; supports operation in under-hood automotive environments |
| AEC-Q101 | Qualified - certified for automotive electronic systems per stress test requirements including HTGB, HTRB, and TCT |
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. Cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., GND or return path); conducts during positive surge events on cathode side |
| Cathode | Avalanche clamping terminal | Connected to protected line (e.g., 24 V rail or sensor output); initiates clamping when voltage exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| Halogen-free, RoHS-compliant construction | M3 suffix confirms compliance with IEC 61249-2-21 and JEDEC J-STD-20E, enabling use in environmentally regulated automotive programs |
| AEC-Q101 qualification | Validated for automotive applications including engine control, body electronics, and ADAS sensors per stress test protocols |
| Glass-passivated chip junction | Ensures stable VBR over lifetime and immunity to humidity-induced parameter drift in harsh environments |
| Low incremental surge resistance | Minimizes VC rise under high IPPM, improving protection margin for downstream MOSFETs and microcontrollers |
| MSL Level 1 rating | Allows unlimited floor life and single-reflow processing at 260 °C peak, eliminating bake requirements pre-assembly |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 24 V supply inputs in engine control units (ECUs) against load dump transients per ISO 16750-2. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and DC-DC converter input to clamp surges up to 1000 W. Use Value: Limits voltage to ≤35.5 V during 28.2 A surge, preventing damage to upstream regulators and ensuring system reset integrity. | Use Scenario: Safeguarding analog outputs of pressure/temperature sensors in factory automation PLC modules. IC Role / Device Role / Timing Role: TVS mounted directly at connector entry point to absorb ESD (IEC 61000-4-2) and inductive switching noise. Use Value: Clamps transients within nanoseconds while maintaining <1 µA leakage at 22 V, preserving sensor accuracy and offset stability. |
| Telecom DC Power Input Protection | OBD-II Diagnostic Port Protection |
Use Scenario: Securing 48 V PoE-powered telecom equipment front-end against lightning-induced surges. IC Role / Device Role / Timing Role: Primary surge suppression stage ahead of DC-DC isolation, sized for 10/1000 µs threat profile. Use Value: Delivers 1000 W peak power dissipation with 72 °C/W thermal resistance, enabling compact heatsink-free layout. | Use Scenario: Hardening vehicle OBD-II port pins (pins 6/CAN-H, 14/CAN-L, 16/VBATT) against jump-start and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS on VBATT line; bidirectional variants used on CAN differential pair. Use Value: AEC-Q101 qualification and 150 °C TJ rating ensure reliability across extended vehicle service life and under-hood thermal cycling. |
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-M3/52 | Same SMB package, identical VWM (22 V), VBR (24.4–26.9 V), and VC (35.5 V), but rated for 600 W PPPM (vs. 1000 W) | Lower energy handling limits use to sub-600 W surge environments (e.g., consumer IoT, not automotive load dump) | Select SMB10J22A-M3/52 where full ISO 7637-2 Pulse 5a compliance is required; SMBJ22A-M3/52 suffices for ESD-only or low-energy inductive switching |
| 1.5SMC22AHE3/A | Same VWM/VBR/VC specs, but in larger SMC (DO-214AB) package with 1000 W rating and RθJA = 30 °C/W | Better thermal performance allows higher sustained surge duty cycles; requires larger PCB footprint | Choose 1.5SMC22AHE3/A when board space permits and thermal management is critical; SMB10J22A-M3/52 preferred for space-constrained automotive modules |
Compared with SMBJ22A-M3/52 and 1.5SMC22AHE3/A, the SMB10J22A-M3/52 uniquely balances 1000 W surge capability with SMB footprint and AEC-Q101 qualification - making it optimal for automotive and industrial applications demanding high power density and automotive-grade reliability.
Availability
SMB10J22A-M3/52 is available at Aetrix Electronics and suitable for automotive ECU designs, industrial sensor interface boards, and telecom power input stages requiring stable component supply, halogen-free compliance, and AEC-Q101 validation.
Supply support for SMB10J22A-M3/52 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 application-specific optimization.
The SMB10JxxA series belongs to Vishay's TRANSZORB® TVS platform, engineered specifically for high-power transient suppression in automotive, industrial, and telecom infrastructure where robustness against ISO 7637-2 and IEC 61000-4-5 threats is mandatory.
FAQ
What is the clamping voltage of SMB10J22A-M3/52 at its rated peak pulse current?
The SMB10J22A-M3/52 has a maximum clamping voltage (VC) of 35.5 V at its peak pulse current (IPPM) of 28.2 A, measured using the standard 10/1000 µs waveform. This value is specified in the Vishay datasheet Document Number 88422, page 2, and defines the upper voltage limit imposed on protected circuitry during full-rated surge events. The SMB10J22A-M3/52 maintains this clamping performance across its qualified operating temperature range.
Is SMB10J22A-M3/52 qualified for automotive applications?
Yes, SMB10J22A-M3/52 is AEC-Q101 qualified, as confirmed in the Vishay datasheet (Document Number 88422, page 1). The "M3" suffix denotes halogen-free, RoHS-compliant construction, and the "HM3" variant (e.g., SMB10J22AHM3_B/H) explicitly carries AEC-Q101 certification. The SMB10J22A-M3/52 shares the same die and qualification data as HM3-grade parts, meeting stress tests including HTGB, HTRB, and temperature cycling for automotive under-hood deployment.
What does the "M3/52" suffix mean in SMB10J22A-M3/52?
The "M3" suffix indicates halogen-free, RoHS-compliant packaging per JEDEC J-STD-20E and IEC 61249-2-21, while "/52" specifies the preferred package code for 7" diameter plastic tape and reel containing 750 units. This ordering format aligns with Vishay's standardized delivery mode nomenclature in the "Ordering Information" section (page 3 of Document Number 88422). The SMB10J22A-M3/52 is supplied ready for high-speed SMT placement.
How does SMB10J22A-M3/52 differ from SMBJ22A-M3/52?
SMB10J22A-M3/52 delivers 1000 W peak pulse power (PPPM) versus 600 W for SMBJ22A-M3/52, while sharing identical VWM (22 V), VBR (24.4–26.9 V), VC (35.5 V), and SMB package. The higher PPPM rating enables SMB10J22A-M3/52 to withstand ISO 7637-2 Pulse 5a load dump events, whereas SMBJ22A-M3/52 is limited to lower-energy threats. Both are halogen-free and RoHS-compliant, but only SMB10J22A-M3/52 is rated for full automotive-grade surge immunity.
What is the maximum operating junction temperature for SMB10J22A-M3/52?
The SMB10J22A-M3/52 has a maximum operating junction temperature (TJ max) of +150 °C, as specified in the "Maximum Ratings" table (page 1 of Document Number 88422). This rating supports reliable operation in under-hood automotive environments and industrial enclosures with elevated ambient temperatures. Derating of peak pulse power begins above TA = 25 °C per Figure 2 in the same datasheet.
SMB10J22A-M3/52 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 (SMBJ)
SMB10J22A-M3/52 FAQ
1.How can I place an order for SMB10J22A-M3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J22A-M3/52 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-M3/52 reliable?
The price and inventory of SMB10J22A-M3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB10J22A-M3/52 is usually 5 days.
3.What payment methods are accepted for SMB10J22A-M3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J22A-M3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J22A-M3/52?
SMB10J22A-M3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J22A-M3/52 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-M3/52?
For technical support, including SMB10J22A-M3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J22A-M3/52 requirements.
6.How does Aetrix verify that SMB10J22A-M3/52 is sourced from the original manufacturer or authorized distributors?
All SMB10J22A-M3/52 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-M3/52 meets industry standards.
7.What is the process for return or replacement of SMB10J22A-M3/52?
All SMB10J22A-M3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J22A-M3/52, 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-M3/52 part is unused and in its original packaging.
Return procedure for SMB10J22A-M3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J22A-M3/52 Tags
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