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Vishay General Semiconductor - Diodes Division SMB10J22AHE3_A/H
- Part No.:
- SMB10J22AHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J22AHE3_A/H.pdf
- Description:
- TVS DIODE 22VWM 35.5VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,235
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Product details
Overview
SMB10J22AHE3_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 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 ECUs and industrial sensor interfaces.
For engineers reviewing the SMB10J22AHE3_A/H datasheet, SMB10J22AHE3_A/H pinout, SMB10J22AHE3_A/H application, or SMB10J22AHE3_A/H equivalent, key selection criteria include AEC-Q101 qualification, unidirectional polarity, low clamping ratio (VC/VWM ≈ 1.61), thermal resistance (RθJA = 72 °C/W), and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates as a shunt-clamping device that remains high-impedance below VWM (22 V) and rapidly transitions to low-impedance conduction above VBR (min 24.4 V) to limit transient overvoltages. Its glass-passivated junction ensures stable leakage (<1.0 µA at VWM) and fast response time (<1 ns), critical for protecting MOSFET gates and microcontroller I/O against ESD and load-dump events.
The SMB10J22AHE3_A/H is rated for TJ = –55 °C to +150 °C operation, meets MSL Level 1 per J-STD-020 (peak reflow 260 °C), and delivers 100 A non-repetitive forward surge current (IFSM) - enabling robust protection in automotive 12 V systems where load-dump transients exceed 35 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 22 V - maximum continuous reverse operating voltage before clamping begins; defines safe DC rail margin for 24 V nominal systems. |
| VBR (min/max) | 24.4 V / 26.9 V at IT = 1.0 mA - guaranteed breakdown threshold ensures reliable triggering without premature conduction. |
| VC @ IPPM | 35.5 V at 28.2 A (10/1000 µs) - clamping voltage limits downstream component stress during surge events. |
| PPPM | 1000 W - peak pulse power handling capacity determines survivability under ISO 7637-2 Pulse 5a load-dump conditions. |
| ID @ VWM | <1.0 µA - ultra-low leakage preserves battery life and avoids false triggering in always-on circuits. |
| TJ max. | +150 °C - enables under-hood deployment in automotive environments with high ambient temperature exposure. |
| Package | SMB (DO-214AA) - surface-mount footprint (4.57 mm × 3.94 mm) compatible with standard SMT pick-and-place and reflow profiles. |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads; cathode indicated by color band on one end; terminals solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point | Connected to ground or low-voltage reference; completes clamping path during transient events. |
| Cathode (banded end) | High-side connection point | Connected to protected line (e.g., 24 V supply rail); reverse-biased during normal operation. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JEDEC standards. |
| Glass passivated junction | Ensures stable electrical parameters over lifetime and immunity to humidity-induced parameter drift. |
| MSL Level 1 rating | Supports single-reflow assembly without moisture sensitivity concerns; peak reflow temperature up to 260 °C. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ISO 10605 ESD pulses). |
| UL 94 V-0 molding compound | Provides flame-retardant housing required for automotive and industrial safety compliance. |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Digital Input Protection |
|---|---|
Use Scenario: Protecting 24 V CAN transceiver power supply from load-dump transients during alternator regulation failure. IC Role / Device Role / Timing Role: Shunt-clamping TVS placed between VCC and GND upstream of LDO regulator. Use Value: Limits voltage excursion to ≤35.5 V, preventing damage to 36 V-rated CAN PHY and maintaining bus communication integrity. | Use Scenario: Safeguarding 24 V digital input channel against field-wiring induced surges in factory automation cabinets. IC Role / Device Role / Timing Role: Primary overvoltage clamp on optocoupler input side, before series current-limiting resistor. Use Value: Absorbs 1000 W surge energy without degradation, ensuring >100,000 surge cycles per IEC 61000-4-5 Level 4 compliance. |
| Automotive ADAS Camera Power Rail | Telecom Remote Radio Unit (RRU) Bias Supply |
Use Scenario: Securing 12 V bias supply feeding image sensor and ISP in rear-view camera module exposed to engine bay heat and vibration. IC Role / Device Role / Timing Role: Unidirectional TVS mounted directly at connector entry point to minimize inductance in clamping path. Use Value: Withstands repeated 12 V system load-dump events while maintaining RθJA = 72 °C/W for thermal stability at +105 °C ambient. | Use Scenario: Protecting 28 V bias rail powering GaN power amplifiers in outdoor 5G base station RRUs subject to lightning-induced surges. IC Role / Device Role / Timing Role: First-line transient suppressor on DC feed line entering RF enclosure, ahead of bulk capacitance. Use Value: Clamps 10/1000 µs surges to 35.5 V with <1 ns response, preserving amplifier gate oxide integrity and avoiding false shutdown. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ22AHE3_A/H | Same VWM (22 V), identical SMB package, but lower PPPM (600 W) and higher VC (37.5 V at 16.9 A). | Not suitable for ISO 7637-2 Pulse 5a (load-dump) due to insufficient power rating; limited to ESD/IEC 61000-4-2 only. | Select SMB10J22AHE3_A/H when 1000 W surge capability and automotive load-dump compliance are required. |
| 1.5KE22A | Through-hole DO-201 package, same VWM (22 V), but higher VC (36.5 V at 27.4 A) and larger footprint; no AEC-Q101 qualification. | Requires PCB redesign and lacks automotive qualification; unsuitable for SMT production or under-hood use. | Choose SMB10J22AHE3_A/H for automated assembly, space-constrained layouts, and AEC-Q101-compliant designs. |
Compared with SMBJ22AHE3_A/H and 1.5KE22A, SMB10J22AHE3_A/H uniquely combines 1000 W PPPM, AEC-Q101 qualification, and SMB footprint - making it the only option supporting high-reliability automotive 12/24 V load-dump protection without layout or process compromise.
Availability
SMB10J22AHE3_A/H is available at Aetrix Electronics and suitable for automotive body electronics, industrial programmable logic controllers, and telecom remote radio units requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for SMB10J22AHE3_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, power density, and automotive qualification.
The SMB10JxxA series targets high-energy transient suppression in harsh environments, specifically engineered to meet ISO 7637-2 and AEC-Q101 requirements for automotive power distribution and sensor interface protection.
FAQ
What is the clamping voltage of SMB10J22AHE3_A/H at its rated peak pulse current?
The SMB10J22AHE3_A/H has a maximum clamping voltage (VC) of 35.5 V at 28.2 A peak pulse current (IPPM) using the 10/1000 µs waveform. This value is measured under standardized test conditions per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during surge events. The low VC/VWM ratio (~1.61) confirms effective transient suppression capability for 24 V systems.
Is SMB10J22AHE3_A/H qualified for automotive applications?
Yes, SMB10J22AHE3_A/H is AEC-Q101 qualified and designated for automotive use with the "HE3" suffix indicating RoHS-compliant and AEC-Q101-qualified construction. It undergoes rigorous stress testing including temperature cycling, highly accelerated life testing (HALT), and ESD validation per JEDEC standards - making it suitable for under-hood and chassis-mounted modules in passenger vehicles and commercial vehicles.
What is the thermal resistance of SMB10J22AHE3_A/H, and how does it affect PCB layout?
The SMB10J22AHE3_A/H has a typical junction-to-ambient thermal resistance (RθJA) of 72 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. This value assumes minimum recommended pad layout per Vishay specification; reducing pad area increases thermal impedance and risks exceeding TJ max. of +150 °C during repetitive surges. Layout must maintain full copper fill and avoid thermal reliefs on both terminals.
Does SMB10J22AHE3_A/H have bidirectional capability?
No, SMB10J22AHE3_A/H is a unidirectional TVS diode, as indicated by the "A" suffix (vs. "CA" for bidirectional variants like SMB8J22CA). It conducts only in reverse bias above VBR and must be oriented with the cathode band toward the protected line. Bidirectional operation requires separate part numbers and exhibits different clamping symmetry and lower PPPM (800 W vs. 1000 W).
What packaging options are available for SMB10J22AHE3_A/H?
SMB10J22AHE3_A/H is supplied in 7" diameter plastic tape and reel with 750 units per reel (package code "H"). The "_A/H" suffix explicitly denotes this delivery format. Alternate formats include 13" reels (code "I", 3200 units) and bulk packaging - all with identical electrical and mechanical specifications, AEC-Q101 qualification, and RoHS compliance.
SMB10J22AHE3_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:
- -
- 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_A/H FAQ
1.How can I place an order for SMB10J22AHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J22AHE3_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 SMB10J22AHE3_A/H reliable?
The price and inventory of SMB10J22AHE3_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 SMB10J22AHE3_A/H is usually 5 days.
3.What payment methods are accepted for SMB10J22AHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J22AHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J22AHE3_A/H?
SMB10J22AHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J22AHE3_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 SMB10J22AHE3_A/H?
For technical support, including SMB10J22AHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J22AHE3_A/H requirements.
6.How does Aetrix verify that SMB10J22AHE3_A/H is sourced from the original manufacturer or authorized distributors?
All SMB10J22AHE3_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 SMB10J22AHE3_A/H meets industry standards.
7.What is the process for return or replacement of SMB10J22AHE3_A/H?
All SMB10J22AHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J22AHE3_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 SMB10J22AHE3_A/H part is unused and in its original packaging.
Return procedure for SMB10J22AHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J22AHE3_A/H Tags
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