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Vishay General Semiconductor - Diodes Division SMB10J22AHM3_A/H
- Part No.:
- SMB10J22AHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J22AHM3_A/H.pdf
- Description:
- TVS DIODE 22VWM 35.5VC DO214AA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SMB10J22AHM3_A/H from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for high-energy surge protection in automotive and industrial power rails. 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 to ≤35.5 V at rated surge. It is AEC-Q101 qualified and halogen-free.
For engineers reviewing the SMB10J22AHM3_A/H datasheet, SMB10J22AHM3_A/H pinout, SMB10J22AHM3_A/H application, or SMB10J22AHM3_A/H equivalent, this device serves as a robust, surface-mount solution for protecting MOSFETs, microcontrollers, and sensor interfaces against inductive switching transients, load dump, and ESD in 12 V/24 V automotive subsystems and industrial control I/O lines.
Technical Context
This TVS diode operates as a unidirectional clamping device with a glass-passivated junction and low incremental surge resistance, enabling fast response (<1 ns) to transient overvoltages. Its thermal resistance (RθJA = 72 °C/W) and junction temperature rating (TJ max = 150 °C) support reliable operation under repeated surge stress on standard PCB copper pads (0.2" × 0.2").
The SMB10J22AHM3_A/H uses a single PN junction structure optimized for high-power density suppression - not bidirectional operation - and is rated per ANSI/IEEE C62.35. Its matte tin-plated leads meet J-STD-002 solderability and JESD201 Class 2 whisker resistance requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 22 V - maximum continuous reverse operating voltage before clamping begins; sets safe margin above 12 V/24 V nominal rail. |
| VBR (min/max) | 24.4 V / 26.9 V at IT = 1 mA - ensures consistent breakdown onset across production lots and temperature range. |
| VC @ IPPM | ≤35.5 V at 28.2 A - defines worst-case clamping voltage during 10/1000 µs surge; protects downstream ICs with <36 V absolute max ratings. |
| PPPM | 1000 W (10/1000 µs) - supports high-energy transients such as ISO 7637-2 Pulse 1/2a/5a in automotive environments. |
| IFSM | 100 A (8.3 ms half-sine) - withstands short-duration forward surges like battery reverse connection or jump-start events. |
| TJ max | +150 °C - enables use in under-hood automotive modules and industrial enclosures without derating at ambient up to +125 °C. |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including HTOL, TC, UHAST, and ESD per AEC specification. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile plastic case with matte tin-plated leads. Cathode indicated by color band; polarity critical for unidirectional operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path | Connected to protected circuit ground or low-side return; conducts during forward surge events (e.g., reverse battery). |
| Cathode | Clamping node | Connected to protected line (e.g., 12 V supply); sinks surge current when voltage exceeds VBR, clamping to VC. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive electronics including engine control units, body controllers, and ADAS sensors. |
| Halogen-free & RoHS-compliant (HM3 suffix) | Meets EU Directive 2011/65/EU and IPC-1752A material declarations; suitable for green manufacturing. |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without moisture sensitivity concerns or baking requirements. |
| Low incremental surge resistance | Enables tighter clamping (VC − VBR ≈ 8.6 V) and higher surge current handling vs. comparable 1000 W SMB devices. |
| Glass passivated junction | Improves long-term stability and leakage performance under thermal cycling and humidity stress. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 12 V supply lines in body control modules against ISO 7637-2 load dump (Pulse 5a) and inductive switch-off transients. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between battery input and DC-DC converter input stage. Use Value: Limits transient voltage to ≤35.5 V, preventing damage to 40 V-rated input MOSFETs and maintaining system uptime during harsh vehicle electrical events. |
Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) connected to PLC analog inputs exposed to field wiring surges. IC Role / Device Role / Timing Role: Point-of-entry TVS on signal line, mounted adjacent to connector to shunt induced common-mode energy before reaching op-amp front-end. Use Value: Clamps 1 kV/500 A surge (10/1000 µs) within nanoseconds, preserving signal integrity and avoiding ADC saturation or latch-up in measurement circuits. |
| Motor Drive Gate Driver Protection | Telecom Power Supply Input Stage |
|
Use Scenario: Shielding high-side gate drivers in BLDC motor inverters from Miller-induced voltage spikes during fast IGBT/MOSFET switching. IC Role / Device Role / Timing Role: TVS placed between gate driver output and power FET gate, referenced to source/emitter. Use Value: Absorbs >1000 W of coupled switching energy while holding gate voltage below ±20 V, preventing unintended turn-on or oxide breakdown. |
Use Scenario: Front-end surge suppression on -48 V telecom rectifier outputs subjected to lightning-induced surges per IEC 61000-4-5. IC Role / Device Role / Timing Role: Primary unidirectional TVS on DC output bus, upstream of bulk capacitors and secondary converters. Use Value: Withstands 1000 W pulses with <1 ns response, reducing downstream MOV count and improving system-level surge immunity to Level 4 compliance. |
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), but commercial-grade (non-AEC-Q101) and RoHS-compliant only (not halogen-free). | Lacks automotive qualification; suitable for industrial/commercial designs where AEC-Q101 is not mandated. | Select SMBJ22AHE3_A/H if cost sensitivity outweighs automotive reliability requirements and halogen-free status is not required. |
| SMCJ22A-HM3 | Same electrical specs but in larger SMC (DO-214AB) package; higher thermal mass (RθJA = 35 °C/W) and 1500 W PPPM rating. | Better suited for high-repetition surge environments or higher ambient temperatures due to superior thermal dissipation. | Choose SMCJ22A-HM3 when board space allows and sustained surge duty cycle or elevated ambient (>105 °C) demands lower thermal resistance. |
Compared with SMB10J22AHM3_A/H, SMBJ22AHE3_A/H offers identical clamping performance at lower qualification cost, while SMCJ22A-HM3 trades footprint for enhanced thermal capability and surge margin - making each optimal for distinct reliability, space, and thermal constraints.
Availability
SMB10J22AHM3_A/H is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor interface protection, and telecom DC input stages requiring stable component supply, AEC-Q101 compliance, and halogen-free materials.
Supply support for SMB10J22AHM3_A/H 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 SMB10J series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-power-density, surface-mount transient suppression in automotive and industrial systems demanding AEC-Q101 validation and robust surge handling.
FAQ
What is the clamping voltage of SMB10J22AHM3_A/H at its rated peak pulse current?
The SMB10J22AHM3_A/H has a maximum clamping voltage (VC) of 35.5 V when subjected to its rated peak pulse current (IPPM) of 28.2 A under the standard 10/1000 µs waveform. This value is measured at TJ = 25 °C and defines the upper voltage limit imposed on the protected circuit during surge events - critical for ensuring compatibility with downstream components rated for ≤40 V absolute maximum voltage.
Is SMB10J22AHM3_A/H suitable for bidirectional transient protection?
No, SMB10J22AHM3_A/H is a unidirectional TVS diode and must be used with correct polarity: cathode connected to the line being protected, anode to ground. For bidirectional protection, Vishay offers the SMB8J22CA variant (800 W, same VWM), which lacks polarity marking and suppresses surges in both directions - using SMB10J22AHM3_A/H in bidirectional configurations risks failure during negative transients.
Does SMB10J22AHM3_A/H meet automotive qualification standards?
Yes, SMB10J22AHM3_A/H is fully AEC-Q101 qualified, as confirmed by Vishay's documentation (Document Number: 88422, Revision: 09-Jan-2024). This includes stress testing for high-temperature operating life, temperature cycling, unbiased highly accelerated stress test (UHAST), and ESD per HBM and CDM models - validating its suitability for under-hood and chassis-mounted automotive ECUs.
What is the meaning of the "HM3" suffix in SMB10J22AHM3_A/H?
The "HM3" suffix in SMB10J22AHM3_A/H indicates halogen-free, RoHS-compliant construction with AEC-Q101 qualification. It distinguishes this variant from "HE3" (RoHS-compliant + AEC-Q101, but not halogen-free) and "E3/M3" (commercial-grade). The "_A/H" denotes packaging: "A" = 7″ tape-and-reel, "H" = 750-unit reel quantity - critical for automated assembly planning.
How does SMB10J22AHM3_A/H compare to SMAJ22A in terms of surge capability?
SMB10J22AHM3_A/H delivers 1000 W peak pulse power (10/1000 µs), whereas SMAJ22A is rated at only 400 W in the smaller SMA package. The SMB package's larger copper pad area (0.2″ × 0.2″) and lower thermal resistance enable higher surge energy absorption - making SMB10J22AHM3_A/H appropriate for ISO 7637-2 Pulse 5a load dump protection where SMAJ22A would fail or degrade prematurely.
SMB10J22AHM3_A/H 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:
- 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)
SMB10J22AHM3_A/H FAQ
1.How can I place an order for SMB10J22AHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J22AHM3_A/H 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 SMB10J22AHM3_A/H reliable?
The price and inventory of SMB10J22AHM3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB10J22AHM3_A/H is usually 5 days.
3.What payment methods are accepted for SMB10J22AHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J22AHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J22AHM3_A/H?
SMB10J22AHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J22AHM3_A/H 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 SMB10J22AHM3_A/H?
For technical support, including SMB10J22AHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J22AHM3_A/H requirements.
6.How does Aetrix verify that SMB10J22AHM3_A/H is sourced from the original manufacturer or authorized distributors?
All SMB10J22AHM3_A/H 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 SMB10J22AHM3_A/H meets industry standards.
7.What is the process for return or replacement of SMB10J22AHM3_A/H?
All SMB10J22AHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J22AHM3_A/H, 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 SMB10J22AHM3_A/H part is unused and in its original packaging.
Return procedure for SMB10J22AHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J22AHM3_A/H Tags
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