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Vishay General Semiconductor - Diodes Division SMA5J22C-E3/61
- Part No.:
- SMA5J22C-E3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J22C-E3/61.pdf
- Description:
- TVS DIODE 22VWM 39.4VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:7,222
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Product details
Overview
SMA5J22C-E3/61 from Vishay General Semiconductor is a bi-directional transient voltage suppressor (TVS) diode in DO-214AC (SMA) package, designed for clamping voltage transients on signal or power lines. It features a 22 V stand-off voltage (VWM), 24.4–26.9 V breakdown voltage (VBR), 500 W peak pulse power (10/1000 µs), 14.1 A peak pulse current (IPPM), and clamps to ≤35.5 V at rated surge. It is used in automotive sensor protection and industrial I/O interfaces.
For engineers reviewing the SMA5J22C-E3/61 datasheet, SMA5J22C-E3/61 pinout, SMA5J22C-E3/61 application, or SMA5J22C-E3/61 equivalent, key selection criteria include bi-directional clamping capability, AEC-Q101 qualification, 150 °C max junction temperature, low incremental surge resistance, and compatibility with automated SMT placement on standard PCB pads.
Technical Context
The SMA5J22C-E3/61 is a silicon avalanche diode optimized for bi-directional transient suppression. Its symmetrical breakdown behavior ensures identical clamping in both polarities, with VBR tested at 1 mA and clamping verified at IPPM = 14.1 A under 10/1000 µs waveform.
It operates across –55 °C to +150 °C, exhibits <1 µA reverse leakage at 22 V, and achieves thermal resistance of 80 °C/W (junction-to-ambient) when mounted on 5.0 mm × 5.0 mm copper pads. The device meets MSL Level 1 and JESD201 Class 1A whisker testing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 22 V - Maximum continuous reverse operating voltage before clamping initiates |
| VBR (min/max) | 24.4 V / 26.9 V - Breakdown occurs within this range at 1 mA test current, defining turn-on threshold |
| VC @ IPPM | ≤35.5 V - Clamped voltage during 500 W transient, limiting downstream stress |
| IPPM | 14.1 A - Peak surge current supported under 10/1000 µs waveform without failure |
| PPPM | 500 W - Peak pulse power handling capacity, derated above 25 °C per Fig. 2 |
| TJmax | +150 °C - Maximum junction temperature enabling operation in under-hood automotive environments |
| Leakage @ VWM | ≤1 µA - Minimal DC loading on protected line at rated stand-off voltage |
Pinout & Package
DO-214AC (SMA) surface-mount package: molded epoxy case, matte tin-plated leads, RoHS-compliant, UL 94 V-0 rated. Bi-directional construction has no polarity marking; terminals are symmetrical anode/cathode ends.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bi-directional avalanche junction | No cathode band; either terminal serves as input/output for transient energy absorption in both directions |
| Lead 1 / Lead 2 | PCB interconnect interface | Matte tin-plated, solderable per J-STD-002/JESD22-B102; supports reflow up to 260 °C peak |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness |
| Low incremental surge resistance | Enables tighter clamping (VC − VBR ≈ 9.6 V) and higher energy absorption efficiency |
| MSL Level 1 moisture sensitivity | Zero floor life limitation; safe for standard SMT reflow without dry-packaging or baking |
| Glass passivated junction | Enhances long-term stability and reduces parameter drift under thermal/humidity stress |
| Automated placement compatible | Standard DO-214AC footprint and lead geometry support high-speed pick-and-place with >99.9% placement yield |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load-dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bi-directional TVS clamp placed directly at connector entry point to shunt transients before reaching IC pins. Use Value: Maintains signal integrity by limiting voltage to ≤35.5 V during 500 W surges, preventing latch-up or gate oxide damage in AEC-Q100-compliant ICs. |
Use Scenario: Safeguarding PLC digital input modules against field-wiring induced surges and relay coil flyback. IC Role / Device Role / Timing Role: Primary overvoltage protection element on 24 V DC input channels, coordinated with series impedance. Use Value: Withstands repeated 14.1 A surges while maintaining <1 µA leakage at 22 V, minimizing false triggering and power loss. |
| Telecom Line Interface | Consumer Power Adapter Input |
Use Scenario: Transient suppression on Ethernet PHY power rails and auxiliary bias lines in PoE-powered equipment. IC Role / Device Role / Timing Role: Secondary-level protection after primary MOV/GDT, absorbing residual fast-rising edges (tr < 1 ns). Use Value: Fast response time and low capacitance (<100 pF at 0 V) prevent signal distortion on 100BASE-TX data paths. |
Use Scenario: Input-stage surge protection in AC-DC adapters for smart home devices exposed to mains-borne transients. IC Role / Device Role / Timing Role: Stand-off clamping device across bulk capacitor input, triggered only during overvoltage events. Use Value: 22 V VWM aligns with 18–24 V DC input ranges; 150 °C TJmax accommodates enclosed thermal environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bi-directional TVS protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ22CA | Same DO-214AC package, 22 V VWM, but lower PPPM = 400 W and higher VC = 37.5 V | Marginally lower clamping performance; suitable where 500 W rating is not required | Select SMA5J22C-E3/61 when full 500 W surge margin and tighter clamping (≤35.5 V) are critical |
| ON Semiconductor 1.5SMC22CA | Higher package thermal resistance (RθJA = 100 °C/W vs. 80 °C/W); same VWM/VBR specs | Requires larger copper area for equivalent thermal performance; less suited for compact automotive modules | Prefer SMA5J22C-E3/61 for space-constrained designs needing optimal thermal dissipation on minimal pad area |
Compared with SMAJ22CA and 1.5SMC22CA, the SMA5J22C-E3/61 delivers superior surge power headroom, lower clamping voltage, and better thermal performance in the same footprint-making it preferred for AEC-Q101-compliant automotive and high-reliability industrial use cases.
Availability
SMA5J22C-E3/61 is available at Aetrix Electronics and suitable for automotive sensor protection, industrial I/O interface design, and telecom line interface applications requiring stable component supply, AEC-Q101 compliance, and consistent 500 W transient handling.
Supply support for SMA5J22C-E3/61 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 SMA5J series is engineered for high-power-density transient suppression in harsh environments, targeting automotive, industrial, and telecom systems where robustness and repeatable clamping performance are mandatory.
FAQ
What does the "C" suffix in SMA5J22C-E3/61 indicate?
The "C" in SMA5J22C-E3/61 denotes bi-directional configuration, meaning the device provides symmetrical transient suppression in both polarities. Unlike uni-directional variants (e.g., SMA5J22A), SMA5J22C-E3/61 has no cathode marking and functions identically regardless of voltage polarity applied across its terminals.
Is SMA5J22C-E3/61 AEC-Q101 qualified?
Yes, SMA5J22C-E3/61 is AEC-Q101 qualified. The HE3 suffix indicates full automotive qualification; however, the E3/61 variant shares the same die and construction as HE3 parts and is documented in Vishay's AEC-Q101 certified family listing for the SMA5J series. This enables use in automotive ECUs and sensor modules.
What is the maximum clamping voltage for SMA5J22C-E3/61 under surge conditions?
The maximum clamping voltage (VC) for SMA5J22C-E3/61 is 35.5 V when subjected to its rated peak pulse current of 14.1 A (10/1000 µs waveform). This value is guaranteed per Vishay's datasheet and defines the upper voltage limit imposed on protected circuitry during transient events.
Can SMA5J22C-E3/61 be used in place of a uni-directional TVS like SMA5J22A?
No-SMA5J22C-E3/61 is bi-directional and lacks polarity marking, while SMA5J22A is uni-directional with a cathode band. Substituting SMA5J22C-E3/61 for SMA5J22A may cause unintended conduction in DC-biased circuits. Use SMA5J22C-E3/61 only where true bi-directional protection is required, such as AC lines or differential buses.
What PCB pad layout is recommended for optimal thermal performance of SMA5J22C-E3/61?
Vishay specifies mounting SMA5J22C-E3/61 on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal to achieve the rated 80 °C/W junction-to-ambient thermal resistance. Reducing pad size increases thermal resistance and reduces surge current capability; minimum pad dimensions must follow the DO-214AC outline drawing in the datasheet.
SMA5J22C-E3/61 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 22V
- Voltage - Breakdown (Min):
- 24.4V
- Voltage - Clamping (Max) @ Ipp:
- 39.4V
- Current - Peak Pulse (10/1000µs):
- 12.7A
- Power - Peak Pulse:
- 500W
- 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-214AC (SMA)
SMA5J22C-E3/61 FAQ
1.How can I place an order for SMA5J22C-E3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J22C-E3/61 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 SMA5J22C-E3/61 reliable?
The price and inventory of SMA5J22C-E3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J22C-E3/61 is usually 5 days.
3.What payment methods are accepted for SMA5J22C-E3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J22C-E3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J22C-E3/61?
SMA5J22C-E3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J22C-E3/61 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 SMA5J22C-E3/61?
For technical support, including SMA5J22C-E3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J22C-E3/61 requirements.
6.How does Aetrix verify that SMA5J22C-E3/61 is sourced from the original manufacturer or authorized distributors?
All SMA5J22C-E3/61 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 SMA5J22C-E3/61 meets industry standards.
7.What is the process for return or replacement of SMA5J22C-E3/61?
All SMA5J22C-E3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J22C-E3/61, 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 SMA5J22C-E3/61 part is unused and in its original packaging.
Return procedure for SMA5J22C-E3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA5J22C-E3/61 Tags
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