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Vishay General Semiconductor - Diodes Division SMA5J22CAHE3/61
- Part No.:
- SMA5J22CAHE3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J22CAHE3/61.pdf
- Description:
- TVS DIODE 22VWM 35.5VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:6,342
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Product details
Overview
SMA5J22CAHE3/61 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) at 1 mA, 500 W peak pulse power (10/1000 μs), clamping voltage of 35.5 V at 14.1 A IPPM, and AEC-Q101 qualification for automotive use.
For engineers reviewing the SMA5J22CAHE3/61 datasheet, SMA5J22CAHE3/61 pinout, SMA5J22CAHE3/61 application, or SMA5J22CAHE3/61 equivalent, key selection criteria include bidirectional clamping capability, low clamping ratio (VC/VWM ≈ 1.61), MSL Level 1 moisture sensitivity, and RoHS-compliant AEC-Q101 qualification for under-hood automotive electronics.
Technical Context
This TVS diode operates symmetrically in both directions due to its bidirectional construction, enabling protection of AC-coupled or differential signal paths without polarity concerns. Its glass-passivated junction ensures stable breakdown characteristics and fast response time (<1 ns) to transients induced by ESD, lightning, or inductive switching.
The device delivers 500 W peak pulse power handling with a low incremental surge resistance, resulting in tight clamping performance (VC = 35.5 V at IPPM = 14.1 A). Thermal resistance is rated at 80 °C/W (junction-to-ambient) when mounted on 5.0 mm × 5.0 mm copper pads, supporting reliable operation up to TJ = 150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 22 V - Maximum continuous reverse operating voltage before clamping begins; defines safe working range for protected circuit. |
| VBR min/max | 24.4 V / 26.9 V at IT = 1 mA - Confirmed breakdown threshold range ensuring predictable turn-on during overvoltage events. |
| VC @ IPPM | 35.5 V at 14.1 A - Clamped voltage during 10/1000 μs surge; determines maximum stress imposed on downstream components. |
| PPPM | 500 W - Peak pulse power rating with standard 10/1000 μs waveform; quantifies single-event surge energy absorption capacity. |
| TJ max | +150 °C - Maximum junction temperature; enables deployment in high-temperature environments such as automotive engine compartments. |
| MSL Level | Level 1 per J-STD-020 - No floor life limitation; supports standard SMT reflow without dry-pack or baking requirements. |
| AEC-Q101 | Qualified - Validated for automotive applications including powertrain, body control, and ADAS subsystems per stress test requirements. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, bidirectional configuration with no polarity marking. Dimensions: 4.93 mm × 3.99 mm × 2.29 mm (L × W × H); matte tin-plated leads, solderable per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Both terminals function identically; conducts surge current in either direction once VBR is exceeded. |
| Case (body) | Thermal and mechanical interface | Plastic molded case provides electrical isolation and transfers heat to PCB copper pads per JEDEC standard layout. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables protection of AC signals, differential buses (e.g., CAN, RS-485), and ungrounded circuits without polarity constraints. |
| 500 W peak pulse power | Supports IEC 61000-4-5 Level 4 (4 kV line-earth, 2 kV line-line) surge immunity testing in industrial and automotive systems. |
| AEC-Q101 qualification | Validates reliability for automotive-grade deployment including temperature cycling, HTRB, and ESD robustness per AEC stress protocols. |
| Low clamping ratio (VC/VWM = 1.61) | Minimizes overvoltage exposure to protected ICs-critical for safeguarding 24 V automotive microcontrollers and transceivers. |
| MSL Level 1 rating | Eliminates moisture sensitivity concerns during assembly; compatible with standard Pb-free reflow profiles up to 260 °C peak. |
Applications
| Automotive Power Distribution | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 24 V supply rails feeding body control modules (BCM) and lighting drivers against load dump and alternator transients. IC Role / Device Role / Timing Role: Bidirectional TVS clamp absorbing >500 W surges while limiting rail voltage to ≤35.5 V. Use Value: Prevents latch-up or permanent damage to downstream PMICs and gate drivers during ISO 7637-2 Pulse 5a events. |
Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) connected to PLC I/O modules exposed to field wiring transients. IC Role / Device Role / Timing Role: Fast-response shunt element diverting ESD and inductive kickback away from precision ADC front-ends. Use Value: Maintains signal integrity and avoids false readings or calibration drift caused by sub-100 ns transients on 4–20 mA or 0–10 V lines. |
| Automotive CAN FD Bus Protection | Telecom Line Card Surge Suppression |
Use Scenario: Placing across CAN_H/CAN_L differential pair in ADAS domain controllers to meet ISO 11898-2 EMC requirements. IC Role / Device Role / Timing Role: Symmetrical clamping device suppressing common-mode surges while preserving bus signal fidelity. Use Value: Ensures uninterrupted communication during 10/1000 μs surges up to ±35.5 V without introducing jitter or bit errors. |
Use Scenario: Front-end protection on POTS or xDSL line cards subjected to lightning-induced surges per GR-1089-CORE. IC Role / Device Role / Timing Role: Primary shunt protector on tip/ring lines, coordinated with GDTs and PTCs in multi-stage architecture. Use Value: Limits let-through voltage to <40 V during 10/1000 μs surges, protecting SLICs and codec ICs rated for ≤45 V absolute maximum. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional TVS protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J22CA-M3/61 | Same electrical specs; halogen-free, RoHS-compliant, but not AEC-Q101 qualified. | Suitable for commercial/industrial use only; not approved for automotive under-hood deployment. | Select when halogen-free compliance is required and automotive qualification is unnecessary. |
| SMCJ22CAHE3/61 | Same VWM/VBR/VC ratings but in larger SMC (DO-214AB) package; higher thermal mass (RθJA = 35 °C/W vs. 80 °C/W). | Better suited for higher average power dissipation or repeated surge events; requires larger PCB footprint. | Choose when system-level surge duty cycle exceeds single-pulse rating or board layout allows SMC footprint. |
Compared with SMA5J22CAHE3/61, the SMA5J22CA-M3/61 offers identical surge performance without automotive qualification, while the SMCJ22CAHE3/61 trades compact size for superior thermal handling-enabling longer surge endurance in high-repetition industrial environments.
Availability
SMA5J22CAHE3/61 is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor interfaces, CAN FD bus protection, and telecom line card surge suppression requiring stable component supply and long-term lifecycle support.
Supply support for SMA5J22CAHE3/61 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 and application-specific optimization.
The SMA5J series is engineered for high-power-density transient suppression in space-constrained automotive and industrial designs, delivering robust 500 W surge handling in the ultra-compact SMA package.
FAQ
What is the clamping voltage of the SMA5J22CAHE3/61 under a 10/1000 μs surge?
The SMA5J22CAHE3/61 clamps to 35.5 V at its peak pulse current (IPPM) of 14.1 A when subjected to a 10/1000 μs waveform. This value is measured per standard test conditions (TA = 25 °C, mounted on 5.0 mm × 5.0 mm copper pads) and defines the maximum voltage seen by protected circuitry during worst-case surge events.
Is the SMA5J22CAHE3/61 suitable for automotive applications?
Yes, the SMA5J22CAHE3/61 is AEC-Q101 qualified and RoHS-compliant, making it suitable for automotive applications including body electronics, infotainment, and ADAS subsystems. Its 150 °C maximum junction temperature and MSL Level 1 rating support under-hood deployment and standard SMT assembly processes.
Does the SMA5J22CAHE3/61 have polarity markings?
No, the SMA5J22CAHE3/61 is a bidirectional TVS diode and carries no polarity marking on the SMA (DO-214AC) package. Both terminals are functionally identical, enabling symmetrical placement across differential lines or AC-coupled nodes without orientation constraints.
What is the thermal resistance of the SMA5J22CAHE3/61?
The SMA5J22CAHE3/61 has a typical junction-to-ambient thermal resistance (RθJA) of 80 °C/W when mounted on the recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. Junction-to-lead (RθJL) is 25 °C/W, supporting effective heat transfer to the PCB in high-surge-duty applications.
How does the SMA5J22CAHE3/61 differ from unidirectional variants like SMA5J22AHE3/61?
The SMA5J22CAHE3/61 is bidirectional with symmetrical clamping in both directions, whereas SMA5J22AHE3/61 is unidirectional and features a cathode band marking. The "CA" suffix indicates bidirectional functionality and applies identical electrical characteristics in forward and reverse bias-essential for protecting AC or differential signal paths.
SMA5J22CAHE3/61 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
SMA5J22CAHE3/61 FAQ
1.How can I place an order for SMA5J22CAHE3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J22CAHE3/61 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 SMA5J22CAHE3/61 reliable?
The price and inventory of SMA5J22CAHE3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J22CAHE3/61 is usually 5 days.
3.What payment methods are accepted for SMA5J22CAHE3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J22CAHE3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J22CAHE3/61?
SMA5J22CAHE3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J22CAHE3/61 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 SMA5J22CAHE3/61?
For technical support, including SMA5J22CAHE3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J22CAHE3/61 requirements.
6.How does Aetrix verify that SMA5J22CAHE3/61 is sourced from the original manufacturer or authorized distributors?
All SMA5J22CAHE3/61 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 SMA5J22CAHE3/61 meets industry standards.
7.What is the process for return or replacement of SMA5J22CAHE3/61?
All SMA5J22CAHE3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J22CAHE3/61, 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 SMA5J22CAHE3/61 part is unused and in its original packaging.
Return procedure for SMA5J22CAHE3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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