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Vishay General Semiconductor - Diodes Division SMB10J22A-E3/5B
- Part No.:
- SMB10J22A-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J22A-E3/5B.pdf
- Description:
- TVS DIODE 22VWM 35.5VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,876
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Product details
Overview
SMB10J22A-E3/5B from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for high-energy surge protection with 1000 W peak pulse power (10/1000 µs), 22 V stand-off voltage (VWM), and 35.5 V clamping voltage (VC) at 28.2 A peak pulse current. It protects MOSFETs, ICs, and sensor signal lines in automotive and industrial power electronics.
For engineers reviewing the SMB10J22A-E3/5B datasheet, SMB10J22A-E3/5B pinout, SMB10J22A-E3/5B application, or SMB10J22A-E3/5B equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, 150 °C max junction temperature, low incremental surge resistance, and RoHS-compliant matte tin plating for automated SMT assembly.
Technical Context
This TVS diode operates as a clamping device that remains high-impedance below 22 V (VWM) and rapidly transitions to low-impedance conduction above its 24.4–26.9 V breakdown range (VBR at 1 mA), limiting transient overvoltages to ≤35.5 V during 10/1000 µs surges. Its glass-passivated junction ensures stable leakage (<1 µA at VWM) and repeatable breakdown behavior.
Thermally, it features a junction-to-lead thermal resistance of 20 °C/W and junction-to-ambient of 72 °C/W when mounted on 5.0 mm × 5.0 mm copper pads - enabling reliable operation under repetitive surge stress in compact PCB layouts without forced cooling.
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 breakdown threshold defining turn-on sensitivity |
| VC @ IPPM | 35.5 V at 28.2 A - clamped voltage during full-rated 1000 W transient, limiting downstream stress |
| PPPM | 1000 W (10/1000 µs) - surge energy handling capacity compatible with ISO 7637-2 Pulse 5a/b |
| IFSM | 100 A (8.3 ms half-sine) - robustness against non-repetitive inrush or load-dump events |
| TJ max | +150 °C - enables use in under-hood automotive environments and high-temperature industrial enclosures |
| Leakage @ VWM | ≤1.0 µA - negligible standby power loss and no signal integrity impact on protected lines |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with cathode band marking. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); terminals are matte tin-plated for J-STD-002 solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry (unidirectional) | Connected to protected circuit ground or low-side return path; defines current direction during clamping |
| Cathode | Reverse-biased terminal (marked with band) | Connected to line being protected (e.g., 24 V supply rail); conducts surge current to ground when V > VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock per JESD22 standards |
| Glass-passivated junction | Ensures stable VBR tolerance, low leakage drift over time, and immunity to moisture-induced parameter shift |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without pre-baking or special handling |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., ESD, inductive kickback), improving protection margin |
| RoHS-compliant, matte tin plating | Enables high-yield, void-free solder joints in automated placement and reflow processes |
Applications
| Automotive Power Distribution | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 24 V supply rails in body control modules against load dump (ISO 7637-2 Pulse 5a) and alternator transients. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between battery input and DC-DC converter input stage. Use Value: Limits voltage to ≤35.5 V during 1000 W surges, preventing damage to downstream regulators and microcontrollers rated for 36 V max input. | Use Scenario: Shielding analog output lines (e.g., 4–20 mA current loop) of pressure sensors from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-leakage (≤1 µA) TVS connected across signal and ground, preserving accuracy while absorbing ±8 kV contact ESD per IEC 61000-4-2. Use Value: Maintains signal integrity with no DC loading; clamps transients within 1 ns response time to protect precision op-amps and ADC front-ends. |
| Telecom DC Power Feeds | Consumer Appliance Motor Control |
Use Scenario: Safeguarding PoE-powered Ethernet switch ports against lightning-induced surges on 48 V DC feed lines. IC Role / Device Role / Timing Role: Primary-level TVS on DC input side of isolated DC-DC converter, coordinated with secondary-side protection. Use Value: Handles 1000 W peak pulse without degradation, meeting GR-1089-CORE Level 3 telecom surge requirements. | Use Scenario: Suppressing inductive kickback from brushed DC motors in washing machine control boards during commutation. IC Role / Device Role / Timing Role: Unidirectional TVS across motor terminals, referenced to chassis ground to clamp flyback voltage spikes. Use Value: Withstands 100 A single-half-sine surge (8.3 ms), preventing MOSFET avalanche failure and ensuring long-term field reliability. |
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 VWM (22 V), identical SMB package, but rated for 600 W PPPM (10/1000 µs) | Limited to lower-energy transients; not suitable for automotive load dump or telecom surge testing | Select SMB10J22A-E3/5B when 1000 W surge capability is required; SMBJ22A-E3/52 suffices for basic ESD/inductive spike suppression. |
| SMCJ22A-E3/57 | Same VWM and PPPM (1500 W), but larger SMC (DO-214AB) package (7.11 mm × 6.22 mm) | Requires larger PCB footprint and higher thermal mass; better for sustained surge duty cycles | Choose SMB10J22A-E3/5B for space-constrained designs needing 1000 W in SMB; SMCJ22A-E3/57 preferred where board area allows and higher thermal margin is critical. |
Compared with SMBJ22A-E3/52 and SMCJ22A-E3/57, SMB10J22A-E3/5B uniquely delivers 1000 W surge rating in the smallest standardized surface-mount TVS package (SMB), balancing high power density, AEC-Q101 compliance, and automated assembly compatibility - making it optimal for next-generation automotive ECUs and compact industrial controllers.
Availability
SMB10J22A-E3/5B is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor interface protection, telecom DC power feeds, and consumer appliance motor control requiring stable component supply and long-term lifecycle support.
Supply support for SMB10J22A-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, rectifiers, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The SMB10JxxA series belongs to Vishay's high-power-density TRANSZORB® TVS family, engineered specifically for automotive AEC-Q101 compliance and industrial surge immunity where compact size and 1000 W capability are essential.
FAQ
What is the clamping voltage of SMB10J22A-E3/5B at its rated peak pulse current?
The SMB10J22A-E3/5B has a maximum clamping voltage (VC) of 35.5 V at its rated peak pulse current (IPPM) of 28.2 A, measured under the standard 10/1000 µs waveform. This value ensures protected circuits remain within safe operating limits during high-energy transients. The SMB10J22A-E3/5B achieves this performance using a glass-passivated junction and optimized chip geometry to minimize incremental resistance during conduction.
Is SMB10J22A-E3/5B suitable for automotive applications?
Yes, SMB10J22A-E3/5B is AEC-Q101 qualified and explicitly rated for automotive use, including under-hood environments up to +150 °C junction temperature. Its construction meets MSL Level 1 reflow requirements and its 1000 W surge rating supports ISO 7637-2 Pulse 5a/b load dump protection. The SMB10J22A-E3/5B is commonly deployed in body control modules, ADAS power supplies, and infotainment system inputs.
What does the "-E3/5B" suffix indicate in SMB10J22A-E3/5B?
The "-E3/5B" suffix denotes RoHS-compliant, commercial-grade packaging: "E3" specifies matte tin plating and RoHS compliance, while "5B" indicates 3200-unit quantity on 13-inch plastic tape and reel. This format ensures compatibility with high-speed pick-and-place equipment and supports automated manufacturing. The SMB10J22A-E3/5B is distinct from AEC-Q101 variants (e.g., HE3), which carry additional automotive qualification markings.
How does SMB10J22A-E3/5B differ from bidirectional TVS diodes like SMB8J22CA?
The SMB10J22A-E3/5B is unidirectional and optimized for DC line protection (e.g., 24 V supply rails), offering 1000 W peak pulse power. In contrast, SMB8J22CA is bidirectional with 800 W rating and symmetric clamping - suited for AC-coupled or dual-polarity signal lines. The SMB10J22A-E3/5B provides lower leakage (<1 µA) and higher surge capacity than SMB8J22CA, but cannot protect bidirectional signals without external circuitry.
What is the thermal resistance of SMB10J22A-E3/5B, and how does it affect layout design?
The SMB10J22A-E3/5B has a typical junction-to-lead thermal resistance (RθJL) of 20 °C/W and junction-to-ambient (RθJA) of 72 °C/W when mounted on 5.0 mm × 5.0 mm copper pads per terminal. To maintain safe junction temperatures during repeated surges, PCB layout must provide adequate copper area and thermal vias - undersized pads increase RθJA, risking thermal runaway. The SMB10J22A-E3/5B datasheet specifies minimum pad dimensions to ensure these thermal ratings are achieved.
SMB10J22A-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:
- 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-E3/5B FAQ
1.How can I place an order for SMB10J22A-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J22A-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 SMB10J22A-E3/5B reliable?
The price and inventory of SMB10J22A-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 SMB10J22A-E3/5B is usually 5 days.
3.What payment methods are accepted for SMB10J22A-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J22A-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J22A-E3/5B?
SMB10J22A-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J22A-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 SMB10J22A-E3/5B?
For technical support, including SMB10J22A-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J22A-E3/5B requirements.
6.How does Aetrix verify that SMB10J22A-E3/5B is sourced from the original manufacturer or authorized distributors?
All SMB10J22A-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 SMB10J22A-E3/5B meets industry standards.
7.What is the process for return or replacement of SMB10J22A-E3/5B?
All SMB10J22A-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J22A-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 SMB10J22A-E3/5B part is unused and in its original packaging.
Return procedure for SMB10J22A-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J22A-E3/5B Tags
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