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Vishay General Semiconductor - Diodes Division SMB10J22AHE3_B/I
- Part No.:
- SMB10J22AHE3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J22AHE3_B/I.pdf
- Description:
- 1KW,22V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:8,847
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Product details
Overview
SMB10J22AHE3_B/I 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 transients to ≤35.5 V. It is AEC-Q101 qualified and used in automotive power supply input stages.
For engineers reviewing the SMB10J22AHE3_B/I datasheet, SMB10J22AHE3_B/I pinout, SMB10J22AHE3_B/I application, or SMB10J22AHE3_B/I equivalent, this device is selected for robust overvoltage protection where fast response (<1 ns), low clamping ratio (VC/VBR ≈ 1.4), and automotive-grade reliability are required - especially in 24 V systems with load dump or inductive switching events.
Technical Context
This TVS operates as a silicon avalanche diode with glass-passivated junction, enabling stable breakdown behavior and low incremental surge resistance. Its unidirectional polarity supports DC-biased protection paths, and it meets J-STD-020 MSL Level 1 with 260 °C reflow peak tolerance.
The device delivers 1000 W peak pulse power under standardized 10/1000 µs waveform conditions when mounted on 5.0 mm × 5.0 mm copper pads per terminal. Thermal resistance is 72 °C/W (junction-to-ambient) and 20 °C/W (junction-to-lead), supporting sustained operation up to TJ = +150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 22 V - Maximum continuous reverse operating voltage before significant leakage; sets upper limit for protected line's nominal DC voltage. |
| VBR (min/max) | 24.4 V / 26.9 V at IT = 1 mA - Confirmed avalanche onset range; ensures reliable triggering above system operating voltage. |
| VC @ IPPM | ≤35.5 V at IPPM = 28.2 A - Clamping voltage during full-rated surge; defines worst-case voltage seen by downstream ICs. |
| PPPM | 1000 W (10/1000 µs) - Surge energy handling capacity; enables protection against ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 Level 3 events. |
| ID @ VWM | ≤1.0 µA - Reverse leakage at rated stand-off; negligible power loss and no interference with high-impedance sensing circuits. |
| TJ max. | +150 °C - Maximum junction temperature; supports under-hood automotive placement without derating in most layouts. |
| Package | SMB (DO-214AA) - Surface-mount outline with 2.2 mm height and 3.94 mm length; compatible with automated pick-and-place and standard reflow profiles. |
Pinout & Package
Two-terminal SMB (DO-214AA) package: cathode marked by single black band on one end; anode is unmarked end. Leads are matte tin-plated, solderable per J-STD-002 and JESD 22-B102, and meet JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Surge current sink node | Connected to protected line; conducts avalanche current to ground during overvoltage events. |
| Anode (unmarked end) | Reference/ground return path | Typically tied to system ground or low-impedance return plane; completes clamping path during transient suppression. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control units, body electronics, and ADAS power supplies. |
| Glass-passivated junction | Ensures long-term stability of VBR and low parameter drift across temperature and lifetime stress. |
| Low profile SMB package | Height ≤2.2 mm enables use in space-constrained modules such as ECU PCBs and sensor housings. |
| MSL Level 1 rating | Supports single-reflow assembly without moisture sensitivity concerns; peak reflow temperature up to 260 °C. |
| Clamping ratio VC/VBR | ≤1.45 - Low ratio minimizes voltage overshoot during surge, reducing stress on downstream MOSFETs and regulators. |
Applications
| Automotive Power Input Protection | Industrial PLC Digital I/O Protection |
|---|---|
|
Use Scenario: Protecting 24 V supply rail of automotive ECUs against load dump (ISO 16750-2) and inductive switching spikes. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and input filter capacitor to clamp surges before they reach DC/DC converters. Use Value: Limits transient voltage to ≤35.5 V, preventing damage to 36 V-rated input stages and ensuring compliance with OEM surge immunity requirements. |
Use Scenario: Shielding digital input channels of programmable logic controllers from field-wiring induced transients (IEC 61000-4-4/5). IC Role / Device Role / Timing Role: TVS connected between signal line and local ground to shunt fast EFT bursts and lightning-induced surges. Use Value: Sub-1 ns response time and 28.2 A surge capability suppress >1 kV/500 A transients without degradation, preserving signal integrity. |
| Telecom DC Power Feeds | Motor Drive Gate Driver Protection |
|
Use Scenario: Safeguarding -48 V telecom rectifier outputs from back EMF and hot-swap surges. IC Role / Device Role / Timing Role: Unidirectional TVS installed at power entry point to absorb repetitive 10/1000 µs surges up to 1000 W. Use Value: 1000 W PPPM rating sustains repeated surge events common in central office environments without thermal runaway. |
Use Scenario: Protecting high-side gate driver ICs in BLDC motor inverters from Miller-induced voltage spikes. IC Role / Device Role / Timing Role: TVS placed across gate-source terminals to clamp dv/dt-induced overshoot during switching transitions. Use Value: Low clamping voltage (≤35.5 V) prevents gate oxide breakdown in 30 V-rated drivers while maintaining fast switching performance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ22AHE3_A/H | Same VWM (22 V), VBR (24.4–26.9 V), and PPPM (1000 W); differs only in packaging (7" reel, code H vs. I). | Identical electrical and thermal performance; suitable for same PCB layout and qualification scope. | Select when smaller reel quantity (750 pcs) or legacy ordering code alignment is required. |
| SMCJ22AHE3_B/I | Higher PPPM (1500 W), larger SMC (DO-214AB) package, same VWM/VBR; RθJA = 35 °C/W vs. 72 °C/W. | Better surge margin but requires 30% more board area; preferred for extreme surge environments (e.g., alternator load dump). | Choose when 1500 W rating is mandatory and board space allows SMC footprint; not drop-in due to different pad layout. |
Compared with SMB10J22AHE3_B/I, SMBJ22AHE3_A/H offers identical protection in a functionally interchangeable reel format, while SMCJ22AHE3_B/I trades compactness for higher surge capacity and lower thermal resistance - requiring layout revision but delivering extended ruggedness.
Availability
SMB10J22AHE3_B/I is available at Aetrix Electronics and suitable for automotive ECUs, industrial PLCs, telecom power feeds, and motor drive gate protection requiring stable component supply and AEC-Q101 compliance.
Supply support for SMB10J22AHE3_B/I 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 automotive qualification.
The SMB10JxxA series belongs to Vishay's TRANSZORB® TVS family, engineered specifically for high-power-density, surface-mount surge protection in harsh environments including automotive, industrial, and telecom infrastructure.
FAQ
What is the maximum clamping voltage of SMB10J22AHE3_B/I under full-rated surge current?
The SMB10J22AHE3_B/I 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 measured at the device terminals under standard test conditions with 5.0 mm × 5.0 mm copper pads per lead, and defines the upper voltage limit imposed on protected circuitry during worst-case transients.
Is SMB10J22AHE3_B/I suitable for bidirectional signal line protection?
No - SMB10J22AHE3_B/I is a unidirectional TVS diode, intended for DC-biased applications like power rail protection. For bidirectional signal lines (e.g., RS-485, CAN), the bidirectional variant SMB8J22CAHE3_B/I must be used, which has symmetric breakdown and clamping in both polarities.
Does SMB10J22AHE3_B/I require derating at elevated ambient temperatures?
Yes - SMB10J22AHE3_B/I must be derated above TA = 25 °C per Figure 2 in Vishay document 88422. At 85 °C ambient, its peak pulse power drops to approximately 650 W; at 125 °C, it falls to ~350 W. Derating ensures junction temperature remains within the +150 °C absolute maximum limit.
What does the "HE3" suffix indicate in SMB10J22AHE3_B/I?
The "HE3" suffix in SMB10J22AHE3_B/I denotes RoHS-compliant construction with AEC-Q101 qualification. "H" indicates AEC-Q101 compliance, "E3" confirms RoHS compliance and commercial-grade material content - distinguishing it from non-automotive variants like SMB10J22AE3_B/I.
Can SMB10J22AHE3_B/I be used in place of SMBJ22AHE3_B/I without layout changes?
Yes - SMB10J22AHE3_B/I and SMBJ22AHE3_B/I share identical SMB (DO-214AA) package dimensions, pinout, and solder pad requirements. Both are unidirectional, have matching VWM (22 V), VBR (24.4–26.9 V), and PPPM (1000 W), making them mechanically and electrically interchangeable on the same PCB footprint.
SMB10J22AHE3_B/I 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:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SMB10J22AHE3_B/I FAQ
1.How can I place an order for SMB10J22AHE3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J22AHE3_B/I 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 SMB10J22AHE3_B/I reliable?
The price and inventory of SMB10J22AHE3_B/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB10J22AHE3_B/I is usually 5 days.
3.What payment methods are accepted for SMB10J22AHE3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J22AHE3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J22AHE3_B/I?
SMB10J22AHE3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J22AHE3_B/I 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 SMB10J22AHE3_B/I?
For technical support, including SMB10J22AHE3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J22AHE3_B/I requirements.
6.How does Aetrix verify that SMB10J22AHE3_B/I is sourced from the original manufacturer or authorized distributors?
All SMB10J22AHE3_B/I 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 SMB10J22AHE3_B/I meets industry standards.
7.What is the process for return or replacement of SMB10J22AHE3_B/I?
All SMB10J22AHE3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J22AHE3_B/I, 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 SMB10J22AHE3_B/I part is unused and in its original packaging.
Return procedure for SMB10J22AHE3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J22AHE3_B/I Tags
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Diodes Incorporated
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