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Vishay General Semiconductor - Diodes Division SMA5J22CHE3/61
- Part No.:
- SMA5J22CHE3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J22CHE3/61.pdf
- Description:
- TVS DIODE 22VWM 39.4VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:8,045
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Product details
Overview
SMA5J22CHE3/61 from Vishay General Semiconductor is a bi-directional transient voltage suppressor (TVS) diode in DO-214AC (SMA) 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 SMA5J22CHE3/61 datasheet, SMA5J22CHE3/61 pinout, SMA5J22CHE3/61 application, or SMA5J22CHE3/61 equivalent, key selection criteria include bi-directional clamping capability, low clamping ratio (VC/VWM ≈ 1.61), RoHS-compliant HE3 suffix with JESD 201 Class 2 whisker resistance, and suitability for automotive ECU and sensor line protection where polarity-agnostic transient suppression is required.
Technical Context
This TVS diode operates symmetrically in both directions, enabling protection of AC-coupled or floating signal paths without polarity constraints. Its glass-passivated junction ensures stable breakdown characteristics, while low incremental surge resistance supports effective energy diversion during fast transients (e.g., ISO 7637-2 Pulse 1/2a/5a).
The device is rated for 150 °C maximum junction temperature and exhibits 80 °C/W junction-to-ambient thermal resistance when mounted on 5.0 mm × 5.0 mm copper pads. Its 10/1000 µs waveform rating aligns with IEC 61000-4-5 Level 4 surge immunity requirements for industrial and automotive applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 22 V - Maximum continuous reverse operating voltage before clamping begins; defines safe signal swing range. |
| VBR min/max | 24.4 V / 26.9 V at 1 mA - Confirmed breakdown threshold ensuring reliable turn-on during overvoltage events. |
| VC @ IPPM | 35.5 V at 14.1 A - Clamped voltage under 500 W surge; limits downstream IC stress to safe levels. |
| PPPM | 500 W (10/1000 µs) - Peak surge energy handling capacity compatible with automotive load-dump and inductive switching threats. |
| TJ max | +150 °C - Enables operation in under-hood automotive environments and industrial enclosures. |
| Qualification | AEC-Q101 qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD. |
| RoHS | HE3 suffix - RoHS-compliant with JESD 201 Class 2 whisker resistance for long-term solder joint integrity. |
Pinout & Package
DO-214AC (SMA) surface-mount package: molded epoxy case meeting UL 94 V-0, matte tin-plated leads, no polarity marking (bi-directional configuration). Dimensions: 4.93 mm × 3.99 mm × 2.29 mm (L × W × H), cathode band omitted per bi-directional design.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bi-directional surge path | Either terminal serves as anode or cathode depending on transient polarity; no fixed polarity required in layout. |
| Case (body) | Thermal conduction path | Plastic body provides electrical isolation while enabling heat dissipation via PCB copper pads (5.0 mm × 5.0 mm recommended). |
Key Features
| Feature | Design Value |
|---|---|
| Bi-directional clamping | Enables single-device protection of AC signals, differential buses (e.g., CAN, LIN), and floating sensor outputs without polarity concerns. |
| 500 W peak pulse power | Withstands ISO 7637-2 Pulse 5a (load dump up to 60 V, 100 ms) and IEC 61000-4-5 Combination Wave surges in automotive ECUs. |
| Glass-passivated junction | Ensures stable VBR over lifetime and temperature, minimizing parameter drift in harsh environments. |
| AEC-Q101 qualification | Validated for automotive under-hood use including temperature cycling (-55 °C to +150 °C), HTRB, and mechanical shock testing. |
| MSL Level 1 | Unlimited floor life at ≤30 °C/60% RH; compatible with standard SMT reflow profiles up to 260 °C peak. |
Applications
| Automotive Sensor Protection | Industrial CAN Bus Interface |
|---|---|
Use Scenario: Protecting analog output sensors (e.g., pressure, temperature) in engine control modules from load-dump and inductive switching transients. IC Role / Device Role / Timing Role: Bi-directional voltage clamp placed across sensor supply and ground pins to limit transient excursions to ≤35.5 V. Use Value: Prevents sensor IC latch-up or damage during 12 V system load dump events (up to 60 V, 100 ms), maintaining signal integrity and functional safety compliance. | Use Scenario: Shielding CANH/CANL differential pair in vehicle body control modules against ESD and coupled surges. IC Role / Device Role / Timing Role: Symmetric TVS connected between CANH-GND and CANL-GND to clamp common-mode transients without disrupting DC bias. Use Value: Maintains CAN signal eye diagram integrity during ±25 kV contact ESD (IEC 61000-4-2) and prevents bus lock-up during 10/1000 µs surges. |
| Consumer Power Adapter Input | Telecom Line Card Surge Protection |
Use Scenario: Input-stage protection for universal-input AC/DC adapters subjected to lightning-induced surges on mains lines. IC Role / Device Role / Timing Role: Primary-side bi-directional clamp across bridge rectifier output to absorb differential-mode surges before bulk capacitor. Use Value: Limits rectified DC bus overshoot to <40 V during 1 kV/0.5 kA line-to-line surges (IEC 61000-4-5), avoiding electrolytic capacitor overvoltage failure. | Use Scenario: Protecting Ethernet PHY interfaces on telecom line cards from induced surges on RJ45 ports. IC Role / Device Role / Timing Role: Bi-directional TVS array (per pair) placed between transformer center-taps and chassis ground to shunt common-mode energy. Use Value: Ensures Ethernet link remains operational after exposure to 4 kV surge (IEC 61000-4-5), reducing field return rates in outdoor base station equipment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bi-directional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J22CA-E3/61 | Same VWM (22 V), VBR (24.4–26.9 V), PPPM (500 W), but commercial-grade (non-AEC-Q101); E3 suffix meets JESD 201 Class 1A whisker test. | Lacks automotive qualification; suitable for industrial/commercial designs where AEC-Q101 is not mandated. | Select when cost sensitivity outweighs automotive reliability requirements and JEDEC whisker class 1A suffices. |
| SMCJ22CAHE3 | Higher PPPM (1500 W), same VWM/VBR range, larger DO-214AB (SMC) package (7.11 mm × 6.22 mm), higher thermal mass. | Requires larger PCB footprint; better suited for systems needing >500 W surge margin or extended thermal time constants. | Choose when surge threat level exceeds 500 W or board layout allows larger SMC package for improved thermal performance. |
Compared with SMA5J22CHE3/61, SMA5J22CA-E3/61 offers identical electrical specs but lacks AEC-Q101 validation, while SMCJ22CAHE3 delivers triple the surge power in a larger footprint-making SMA5J22CHE3/61 optimal for space-constrained automotive modules requiring certified reliability.
Availability
SMA5J22CHE3/61 is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and telecom line card designs requiring stable component supply with AEC-Q101 assurance and RoHS compliance.
Supply support for SMA5J22CHE3/61 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific optimization.
The SMA5J series is engineered for high-power-density transient suppression in automotive and industrial environments, targeting robust protection of sensitive ICs and interfaces against ISO 7637-2 and IEC 61000-4-5 threats.
FAQ
What is the polarity configuration of SMA5J22CHE3/61?
SMA5J22CHE3/61 is a bi-directional TVS diode with symmetrical terminals-neither end is marked as anode or cathode. This enables it to clamp voltage transients of either polarity equally, making it ideal for protecting AC-coupled circuits, differential buses like CAN, and floating sensor outputs without regard to signal polarity.
Does SMA5J22CHE3/61 meet automotive qualification standards?
Yes, SMA5J22CHE3/61 carries the HE3 suffix, indicating full AEC-Q101 qualification. It has undergone rigorous testing including temperature cycling, high-temperature reverse bias (HTRB), and ESD per JESD22-A114, confirming suitability for under-hood automotive applications such as engine control units and body electronics modules.
What is the clamping voltage of SMA5J22CHE3/61 under surge conditions?
The SMA5J22CHE3/61 clamps to a maximum of 35.5 V at its peak pulse current (IPPM) of 14.1 A, measured using the standard 10/1000 µs waveform. This VC/VWM ratio of ~1.61 ensures downstream ICs experience minimal overvoltage stress during transient events while maintaining efficient energy absorption.
How does the HE3 suffix differ from E3 in SMA5J22CHE3/61?
The HE3 suffix in SMA5J22CHE3/61 denotes AEC-Q101 qualification and JESD 201 Class 2 whisker resistance, whereas E3 indicates commercial-grade qualification with JESD 201 Class 1A. Both are RoHS-compliant, but HE3 is mandatory for automotive applications requiring validated long-term reliability under thermal and mechanical stress.
What PCB layout guidance applies to SMA5J22CHE3/61 for optimal thermal performance?
For optimal thermal performance, SMA5J22CHE3/61 should be mounted on minimum 5.0 mm × 5.0 mm copper pads per terminal, per Vishay's datasheet recommendation. This pad size achieves the specified 80 °C/W junction-to-ambient thermal resistance and ensures reliable power dissipation during repetitive surge events in automotive and industrial applications.
SMA5J22CHE3/61 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
SMA5J22CHE3/61 FAQ
1.How can I place an order for SMA5J22CHE3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J22CHE3/61 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 SMA5J22CHE3/61 reliable?
The price and inventory of SMA5J22CHE3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J22CHE3/61 is usually 5 days.
3.What payment methods are accepted for SMA5J22CHE3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J22CHE3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J22CHE3/61?
SMA5J22CHE3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J22CHE3/61 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 SMA5J22CHE3/61?
For technical support, including SMA5J22CHE3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J22CHE3/61 requirements.
6.How does Aetrix verify that SMA5J22CHE3/61 is sourced from the original manufacturer or authorized distributors?
All SMA5J22CHE3/61 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 SMA5J22CHE3/61 meets industry standards.
7.What is the process for return or replacement of SMA5J22CHE3/61?
All SMA5J22CHE3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J22CHE3/61, 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 SMA5J22CHE3/61 part is unused and in its original packaging.
Return procedure for SMA5J22CHE3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA5J22CHE3/61 Tags
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