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Vishay General Semiconductor - Diodes Division SMA5J22CA-E3/61
- Part No.:
- SMA5J22CA-E3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J22CA-E3/61.pdf
- Description:
- TVS DIODE 22VWM 35.5VC DO214AC
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SMA5J22CA-E3/61 from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, designed for high-energy surge protection on signal and power 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 14.1 A peak pulse current, and 500 W peak pulse power rating with 10/1000 µs waveform - used to protect automotive sensor interfaces and industrial I/O circuits against ESD and load dump transients.
For engineers reviewing the SMA5J22CA-E3/61 datasheet, SMA5J22CA-E3/61 pinout, SMA5J22CA-E3/61 application, or SMA5J22CA-E3/61 equivalent, key selection criteria include bidirectional clamping capability, low incremental surge resistance, AEC-Q101 qualification eligibility (via HE3 suffix), RoHS-compliant matte tin plating, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This bidirectional TVS operates symmetrically in both polarities, with identical electrical characteristics forward and reverse - enabling robust protection of AC-coupled or differential signal paths without polarity constraints. Its glass-passivated junction ensures stable leakage performance (<1.0 µA at VWM) and fast response time (<1 ns), critical for safeguarding high-speed analog inputs and CAN/LIN bus nodes.
The device's thermal resistance (RθJA = 80 °C/W) and maximum junction temperature (TJ = 150 °C) support reliable operation under repeated surge stress when mounted per recommended pad layout. It meets MSL Level 1 (260 °C peak reflow) and JESD201 Class 2 whisker resistance requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 22 V - Maximum continuous reverse working voltage before clamping begins; defines safe operating margin for 24 V nominal systems. |
| VBR (min/max) | 24.4 V / 26.9 V at 1 mA - Verified breakdown threshold range ensuring consistent turn-on across production lots. |
| VC @ IPPM | 35.5 V at 14.1 A (10/1000 µs) - Clamped voltage seen by protected IC during worst-case surge; limits stress on downstream MOSFETs or microcontrollers. |
| PPPM | 500 W - Peak pulse power handling capacity; supports IEC 61000-4-5 Level 4 (4 kV) surge immunity testing. |
| IPPM | 14.1 A - Peak surge current capability under standardized 10/1000 µs waveform; correlates directly to system-level surge test compliance. |
| TJ max. | 150 °C - Maximum junction temperature; enables use in under-hood automotive environments and industrial enclosures without derating. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD22-B102. No polarity marking - bidirectional symmetry eliminates cathode/anode orientation concerns during placement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Both terminals function identically; surge current flows bidirectionally through the same junction - no PCB layout polarity dependency. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Identical VBR, VC, and IPPM in both directions - simplifies protection design for AC signals, differential buses (e.g., RS-485), and floating grounds. |
| Glass-passivated junction | Stable leakage (<1.0 µA at VWM) and long-term reliability under thermal cycling - critical for automotive and industrial field deployments. |
| Low incremental surge resistance | Enables tighter VC – VBR margin (≤11.1 V), reducing voltage overshoot during fast transients and improving system-level ESD robustness. |
| MSL Level 1 compliance | Rated for peak reflow temperature of 260 °C - compatible with standard lead-free SMT assembly processes without pre-baking. |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
Use Scenario: Protecting ABS wheel speed sensors and engine crankshaft position sensors from load dump and ISO 7637-2 pulses in 12 V vehicle systems. IC Role / Device Role / Timing Role: Bidirectional TVS placed across sensor supply and ground pins to clamp transients before they reach ASIC front-end circuitry. Use Value: Maintains signal integrity during 100 V/50 ms load dump events while holding clamped voltage below 36 V - within absolute maximum rating of typical Hall-effect sensor ICs. |
Use Scenario: Safeguarding PLC digital input modules connected to 24 V DC field wiring exposed to relay coil flyback and lightning-induced surges. IC Role / Device Role / Timing Role: Primary surge suppression element on each channel's input line, located immediately after connector entry point. Use Value: Withstands repetitive 500 W surges per IEC 61000-4-5, preventing latch-up or permanent damage to optocoupler input stages and microcontroller GPIOs. |
| Telecom Line Interface | Consumer Power Adapter Input |
Use Scenario: Transient protection on POTS (Plain Old Telephone Service) line interface cards subject to lightning-induced surges up to 1 kV. IC Role / Device Role / Timing Role: First-stage protector between RJ11 jack and SLIC (Subscriber Line Interface Circuit) IC, shunting energy before filtering. Use Value: Fast <1 ns response captures initial surge edge; symmetrical clamping avoids polarity misalignment in legacy analog telephony circuits. |
Use Scenario: Secondary-side overvoltage protection on 5 V/9 V USB-C power adapter outputs, guarding against feedback transients from faulty cables or shorted loads. IC Role / Device Role / Timing Role: Output rail clamp placed after DC-DC converter, limiting voltage excursion during output short-circuit recovery. Use Value: 35.5 V clamping voltage ensures protected USB PD controller remains within its 40 V absolute maximum rating even during 10/1000 µs 10 A surges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J22A-E3/61 | Unidirectional version - exhibits polarity-dependent behavior; includes cathode band marking and forward voltage drop (~3.5 V at 25 A). | Required only where DC bias polarity is fixed and reverse conduction must be blocked (e.g., DC power rail protection). | Select SMA5J22A-E3/61 only if unidirectional blocking is mandatory; otherwise SMA5J22CA-E3/61 offers broader flexibility for AC or floating systems. |
| SMBJ22CA-E3/52 | Same VWM/VC specs but in larger SMB (DO-214AA) package - higher thermal mass yields RθJA = 60 °C/W vs. 80 °C/W. | Better suited for high-duty-cycle surge environments or where board space allows larger footprint and higher IPC ratings. | Choose SMBJ22CA-E3/52 when thermal dissipation under repeated surges is critical; SMA5J22CA-E3/61 prioritizes compactness and high-density layouts. |
Compared with SMA5J22A-E3/61 and SMBJ22CA-E3/52, the SMA5J22CA-E3/61 uniquely balances bidirectional symmetry, SMA footprint efficiency, and 500 W surge capability - making it optimal for space-constrained automotive and industrial PCBs requiring polarity-agnostic protection.
Availability
SMA5J22CA-E3/61 is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O cards, and telecom line interface designs requiring stable component supply, RoHS-compliant manufacturing, and traceable sourcing for long-lifecycle programs.
Supply support for SMA5J22CA-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, TVS devices, and power MOSFETs with emphasis on reliability, ruggedness, and automotive-grade qualification.
The SMA5J series was engineered specifically for high-power-density transient suppression in harsh environments - targeting AEC-Q101 readiness, automated SMT compatibility, and robust performance across -55 °C to +150 °C operation.
FAQ
What does the "CA" suffix indicate in SMA5J22CA-E3/61?
The "CA" suffix in SMA5J22CA-E3/61 denotes a bidirectional configuration - meaning the device clamps transient voltages equally in both polarities. Unlike unidirectional variants (e.g., SMA5J22A), SMA5J22CA-E3/61 has no polarity marking and delivers identical VBR, VC, and IPPM values regardless of voltage polarity applied across its terminals.
Is SMA5J22CA-E3/61 qualified to AEC-Q101?
SMA5J22CA-E3/61 itself is not AEC-Q101 qualified; however, the same die and construction are available in AEC-Q101 versions using the HE3 or HM3 suffix (e.g., SMA5J22CAHE3_A). The E3 suffix indicates RoHS-compliant commercial grade with MSL Level 1 and JESD201 Class 2 whisker resistance - suitable for non-automotive industrial and consumer applications.
What is the mounting pad layout recommendation for SMA5J22CA-E3/61?
Vishay specifies that SMA5J22CA-E3/61 must be mounted on 0.2" x 0.2" (5.0 mm x 5.0 mm) copper pads per terminal to achieve rated 500 W peak pulse power. Deviating from this layout reduces thermal dissipation and degrades surge current handling - actual IPPM and VC performance must be validated per PCB copper area and layer stackup.
How does SMA5J22CA-E3/61 compare to SMAJ22CA in terms of surge rating?
SMA5J22CA-E3/61 delivers 500 W peak pulse power (10/1000 µs), whereas the older SMAJ22CA is rated for 400 W. This 25 % increase enables SMA5J22CA-E3/61 to meet stricter IEC 61000-4-5 Level 4 requirements without derating, while maintaining identical SMA (DO-214AC) footprint and pin compatibility.
Can SMA5J22CA-E3/61 be used in place of SMA5J22A-E3/61 without layout changes?
Yes - SMA5J22CA-E3/61 shares identical SMA (DO-214AC) package dimensions, pad layout, and soldering profile with SMA5J22A-E3/61. However, because SMA5J22CA-E3/61 is bidirectional and lacks polarity marking, it replaces SMA5J22A-E3/61 only where reverse conduction is acceptable; DC-biased rails requiring unidirectional blocking still need SMA5J22A-E3/61.
SMA5J22CA-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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 22V
- Voltage - Breakdown (Min):
- 24.4V
- Voltage - Clamping (Max) @ Ipp:
- 35.5V
- Current - Peak Pulse (10/1000µs):
- 14.1A
- 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)
SMA5J22CA-E3/61 FAQ
1.How can I place an order for SMA5J22CA-E3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J22CA-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 SMA5J22CA-E3/61 reliable?
The price and inventory of SMA5J22CA-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 SMA5J22CA-E3/61 is usually 5 days.
3.What payment methods are accepted for SMA5J22CA-E3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J22CA-E3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J22CA-E3/61?
SMA5J22CA-E3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J22CA-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 SMA5J22CA-E3/61?
For technical support, including SMA5J22CA-E3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J22CA-E3/61 requirements.
6.How does Aetrix verify that SMA5J22CA-E3/61 is sourced from the original manufacturer or authorized distributors?
All SMA5J22CA-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 SMA5J22CA-E3/61 meets industry standards.
7.What is the process for return or replacement of SMA5J22CA-E3/61?
All SMA5J22CA-E3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J22CA-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 SMA5J22CA-E3/61 part is unused and in its original packaging.
Return procedure for SMA5J22CA-E3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA5J22CA-E3/61 Tags
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