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Vishay General Semiconductor - Diodes Division SMB10J22-E3/5B
- Part No.:
- SMB10J22-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J22-E3/5B.pdf
- Description:
- TVS DIODE 22VWM 39.4VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,354
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Product details
Overview
SMB10J22-E3/5B 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 22 V stand-off voltage (VWM), 24.4–26.9 V breakdown voltage (VBR), 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 power supply inputs and industrial sensor interfaces.
For engineers reviewing the SMB10J22-E3/5B datasheet, SMB10J22-E3/5B pinout, SMB10J22-E3/5B application, or SMB10J22-E3/5B equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance (RθJA = 72 °C/W), RoHS-compliant packaging (E3 suffix), and real-world clamping behavior under transient stress per ANSI/IEEE C62.35.
Technical Context
This unidirectional TVS diode operates as a voltage-clamped shunt protector: it remains high-impedance below 22 V (VWM), triggers avalanche conduction at 24.4–26.9 V (VBR @ 1 mA), and limits transient voltage to ≤35.5 V (VC) during 1000 W surges. Its glass-passivated junction ensures stable breakdown and low leakage (<1 µA at VWM).
Designed for surface-mount automated assembly, SMB10J22-E3/5B meets MSL Level 1 (260 °C reflow peak) and AEC-Q101 qualification for automotive under-hood applications. Thermal performance is defined by RθJA = 72 °C/W (on 5.0 mm × 5.0 mm copper pads) and RθJL = 20 °C/W, enabling reliable operation up to TJ = 150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 22 V - Maximum continuous reverse operating voltage before conduction begins; defines safe DC rail margin. |
| VBR min/max | 24.4 V / 26.9 V @ 1 mA - Verified avalanche onset range; ensures consistent triggering across production lot. |
| VC @ IPPM | 35.5 V @ 28.2 A - Clamped voltage during 1000 W, 10/1000 µs surge; determines protected circuit's maximum overvoltage exposure. |
| PPPM | 1000 W - Peak pulse power handling capability; supports IEC 61000-4-5 Level 4 (4 kV) surge immunity when properly laid out. |
| ID @ VWM | <1 µA - Reverse leakage at rated stand-off; minimizes quiescent power loss in battery-powered systems. |
| TJ max | 150 °C - Maximum junction temperature; enables use in under-hood automotive environments with derated power. |
| RθJA | 72 °C/W - Thermal resistance junction-to-ambient on standard 5.0 mm × 5.0 mm copper pads; informs heatsinking requirements. |
Pinout & Package
Package: DO-214AA (SMB), surface-mount, molded plastic case with matte tin-plated leads. Cathode indicated by color band on one end; polarity-critical for unidirectional operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to system ground or lowest potential node; completes shunt path during transient. |
| Cathode | High-side surge input terminal | Connected to protected line (e.g., 24 V rail or CAN_H); carries full surge current into ground via anode. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock - required for engine control and ADAS power domains. |
| Glass passivated junction | Stable, repeatable avalanche characteristics over lifetime; eliminates parameter drift due to moisture or contamination ingress. |
| MSL Level 1 compliance | Rated for 260 °C peak reflow profile without preconditioning - supports standard SMT assembly without baking or special handling. |
| Low incremental surge resistance | Enables tight clamping (VC − VBR ≈ 11.1 V) under high-current transients - reduces voltage overshoot on sensitive downstream ICs. |
| RoHS-compliant E3 suffix | Meets JESD 201 Class 1A whisker test and UL 94 V-0 flammability - satisfies environmental and safety mandates for global OEM BOMs. |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Clamp |
|---|---|
Use Scenario: 24 V battery-fed ECUs exposed to load dump (ISO 16750-2) and jump-start surges. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between power rail and chassis ground to clamp transients before they reach PMIC or MCU. Use Value: Limits peak voltage to ≤35.5 V during 1000 W surges, preventing damage to 3.3 V/5 V logic supplies downstream of DC/DC converters. |
Use Scenario: Analog output lines (e.g., 4–20 mA current loop) in factory-floor pressure/temperature sensors. IC Role / Device Role / Timing Role: Bidirectional-capable but used unidirectionally to protect op-amp output stage from ESD and inductive kickback. Use Value: Sub-1 µA leakage at 22 V preserves loop accuracy; fast <1 ps response prevents latch-up in precision amplifiers. |
| Telecom DC Power Feeds | OBD-II Diagnostic Interface Protection |
Use Scenario: -48 V telecom rectifier outputs feeding base station backplanes. IC Role / Device Role / Timing Role: Primary surge clamp on input side of hot-swap controllers and POL regulators. Use Value: Withstands repeated 10/1000 µs surges up to 1000 W while maintaining VWM margin against -48 V nominal rail. |
Use Scenario: Pin 16 (battery+) and pin 7 (CAN_H) on OBD-II connectors subject to accidental short-to-battery or ESD. IC Role / Device Role / Timing Role: Discrete TVS mounted directly at connector footprint to divert energy before entering CAN transceiver. Use Value: 35.5 V clamping protects ISO 11898-2 compliant transceivers rated for 40 V absolute max; AEC-Q101 ensures field longevity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ22A-E3/5B | Same DO-214AA package, identical VWM/VBR/VC specs, but rated for 600 W PPPM (vs. 1000 W). | Limited to lower-energy transients (e.g., IEC 61000-4-2 ESD only); insufficient for ISO 16750-2 load dump. | Select SMBJ22A-E3/5B only where surge energy is constrained and cost sensitivity outweighs headroom. |
| SMAJ22A-E3/5B | Smaller DO-214AC (SMA) package; same VWM/VBR but lower PPPM (400 W) and higher RθJA (110 °C/W). | Thermal derating limits sustained surge duty cycle; unsuitable for automotive under-hood ambient >105 °C. | Choose SMAJ22A-E3/5B only for space-constrained consumer PCBs with benign thermal environments. |
Compared with SMBJ22A-E3/5B and SMAJ22A-E3/5B, SMB10J22-E3/5B delivers 67% higher surge power rating and 35% lower thermal resistance - making it the sole option among the three qualified for AEC-Q101 automotive power rail protection with full IEC 61000-4-5 Level 4 compliance.
Availability
SMB10J22-E3/5B is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor signal conditioning, and telecom DC power distribution requiring stable component supply and long-term lifecycle assurance.
Supply support for SMB10J22-E3/5B 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The SMB10Jxx series belongs to Vishay's TRANSZORB® TVS platform, engineered specifically for high-power, high-reliability transient suppression in automotive, industrial, and telecom infrastructure where robustness against repetitive surges is mandatory.
FAQ
What is the clamping voltage of SMB10J22-E3/5B at its rated peak pulse current?
The SMB10J22-E3/5B has a maximum clamping voltage (VC) of 35.5 V when subjected to its rated peak pulse current (IPPM) of 28.2 A using a 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuits during worst-case surge events - critical for ensuring downstream ICs remain within their absolute maximum ratings. The SMB10J22-E3/5B achieves this clamping performance while maintaining low leakage and stable breakdown.
Is SMB10J22-E3/5B qualified for automotive applications?
Yes, SMB10J22-E3/5B is AEC-Q101 qualified, having passed stress tests including temperature cycling, high-temperature operating life, and mechanical shock - confirming suitability for automotive powertrain, body electronics, and ADAS modules. Its DO-214AA package, 150 °C max junction temperature, and MSL Level 1 reflow compatibility further support under-hood deployment. The SMB10J22-E3/5B meets these requirements without derating in standard mounting conditions.
What does the "E3/5B" suffix mean in SMB10J22-E3/5B?
The "E3" suffix indicates RoHS-compliant construction meeting JESD 201 Class 1A whisker resistance, while "5B" specifies packaging in 13-inch diameter plastic tape and reel with a base quantity of 3200 units. This format ensures compatibility with high-speed pick-and-place equipment and satisfies environmental compliance for global OEMs. The SMB10J22-E3/5B uses matte tin-plated leads solderable per J-STD-002 and JESD 22-B102 standards.
How does SMB10J22-E3/5B differ from bi-directional variants like SMB8J22CA?
SMB10J22-E3/5B is unidirectional with cathode marking and optimized for DC rail protection, whereas SMB8J22CA is bi-directional (no polarity marking) and suited for AC or symmetrical signal lines like RS-485. The SMB10J22-E3/5B offers 1000 W peak pulse power (vs. 800 W for SMB8J22CA) and lower clamping voltage at equivalent current - making it preferable for high-energy DC transients. Both share DO-214AA packaging but differ in test current (1 mA vs. 1 mA), leakage, and surge waveform capability.
What thermal design guidance applies to SMB10J22-E3/5B in PCB layout?
SMB10J22-E3/5B requires minimum 5.0 mm × 5.0 mm copper pads per terminal to achieve its specified RθJA of 72 °C/W; reducing pad area increases thermal resistance and risks premature thermal runaway during repeated surges. Layout must avoid thermal isolation - connect pads directly to internal ground/power planes using multiple vias. The SMB10J22-E3/5B's RθJL of 20 °C/W also supports localized thermal relief via direct lead-to-plane conduction, especially critical in automotive under-hood designs exceeding 105 °C ambient.
SMB10J22-E3/5B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SMB10J22-E3/5B FAQ
1.How can I place an order for SMB10J22-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J22-E3/5B 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 SMB10J22-E3/5B reliable?
The price and inventory of SMB10J22-E3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB10J22-E3/5B is usually 5 days.
3.What payment methods are accepted for SMB10J22-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J22-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J22-E3/5B?
SMB10J22-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J22-E3/5B 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 SMB10J22-E3/5B?
For technical support, including SMB10J22-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J22-E3/5B requirements.
6.How does Aetrix verify that SMB10J22-E3/5B is sourced from the original manufacturer or authorized distributors?
All SMB10J22-E3/5B 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 SMB10J22-E3/5B meets industry standards.
7.What is the process for return or replacement of SMB10J22-E3/5B?
All SMB10J22-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J22-E3/5B, 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 SMB10J22-E3/5B part is unused and in its original packaging.
Return procedure for SMB10J22-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J22-E3/5B Tags
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