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Vishay General Semiconductor - Diodes Division SMA5J7.0CA-E3/61
- Part No.:
- SMA5J7.0CA-E3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J7.0CA-E3/61.pdf
- Description:
- TVS DIODE 7VWM 12VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:2,264
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Product details
Overview
SMA5J7.0CA-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 7.0 V stand-off voltage (VWM), 6.4 V minimum breakdown voltage (VBR), 12.0 V maximum clamping voltage (VC) at 41.7 A peak pulse current (IPPM), and 500 W peak pulse power (PPPM). It is used to protect MOSFETs, ICs, and sensor signal lines in automotive and industrial control systems against inductive switching transients.
For engineers reviewing the SMA5J7.0CA-E3/61 datasheet, SMA5J7.0CA-E3/61 pinout, SMA5J7.0CA-E3/61 application, or SMA5J7.0CA-E3/61 equivalent, key selection criteria include bidirectional polarity, clamping performance under 10/1000 µs surge, thermal resistance (RθJA = 80 °C/W), RoHS-compliant matte tin plating, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This device operates as a voltage-clamped crowbar during transient events, leveraging an avalanche breakdown mechanism with glass-passivated junction for stable, repeatable response. Its bidirectional symmetry ensures identical electrical characteristics in both polarities - critical for AC-coupled or floating signal line protection.
Designed for surface-mount use on PCBs with minimum pad layout per DO-214AC, it delivers low incremental surge resistance and fast response time (<1 ns), enabling effective suppression of ESD (IEC 61000-4-2), EFT (IEC 61000-4-4), and lightning-induced surges (IEC 61000-4-5) without affecting normal circuit operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 7.0 V - Maximum continuous reverse operating voltage before clamping begins; defines safe operating margin below breakdown. |
| VBR (min) | 6.4 V - Minimum breakdown voltage at 10 mA test current; guarantees reliable turn-on during overvoltage events. |
| VC @ IPPM | 12.0 V - Clamping voltage at 41.7 A peak pulse current (10/1000 µs); determines maximum stress imposed on protected downstream components. |
| PPPM | 500 W - Peak pulse power handling capability; enables robust protection against high-energy transients without failure. |
| RθJA | 80 °C/W - Junction-to-ambient thermal resistance; requires adequate PCB copper area (0.2" × 0.2") to maintain TJ ≤ 150 °C under surge conditions. |
| Polarity | Bidirectional - No cathode marking; symmetric behavior allows use on AC or ungrounded differential lines without orientation concern. |
| Package | SMA (DO-214AC) - Low-profile surface-mount package compatible with standard reflow profiles and J-STD-020 MSL Level 1. |
Pinout & Package
Package: SMA (DO-214AC), molded plastic case with matte tin-plated leads, UL 94 V-0 rated, dimensions 4.93 mm × 3.99 mm × 2.29 mm (L × W × H).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (unmarked) | Transient conduction path | Bidirectional terminals - no polarity marking; either terminal serves as anode or cathode depending on instantaneous voltage polarity. |
| Case / Body | Thermal and mechanical interface | Plastic body provides electrical isolation; thermal path relies on soldered leads and PCB copper pads for heat dissipation. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable, repeatable avalanche characteristics over temperature and lifetime; eliminates parameter drift due to moisture or contamination. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients, improving clamping accuracy and reducing stress on protected ICs. |
| MSL Level 1 rating | Allows unlimited floor life and standard reflow without baking; simplifies manufacturing logistics and reduces assembly risk. |
| AEC-Q101 qualification option | Available in HE3/HM3 variants for automotive applications requiring validated reliability under temperature cycling, humidity, and vibration stress. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and inductive kickback in 12 V vehicle subsystems. IC Role / Device Role / Timing Role: Bidirectional TVS clamp placed directly at connector or IC input pins to limit transient voltage to <12.0 V during 500 W surges. Use Value: Prevents latch-up or gate oxide damage in automotive-grade microcontrollers and analog front-ends exposed to ISO 7637-2 Pulse 5a. | Use Scenario: Shielding digital and analog I/O channels of programmable logic controllers from relay coil flyback, motor drive noise, and field wiring surges. IC Role / Device Role / Timing Role: Standoff-rated (7.0 V) bidirectional suppressor installed across isolated signal pairs to shunt energy before reaching optocouplers or ADC inputs. Use Value: Maintains signal integrity under repeated 1 kV/500 A surge events while supporting long-term operation up to 150 °C junction temperature. |
| Consumer Power Adapter Input | Telecom Line Interface Protection |
Use Scenario: Secondary-side DC output protection in wall adapters and USB PD chargers against cross-conduction faults and capacitor discharge transients. IC Role / Device Role / Timing Role: Fast-response (sub-nanosecond) TVS placed between VOUT and GND to clamp overvoltage before reaching downstream DC-DC regulators or USB port controllers. Use Value: Enables compliance with UL 62368-1 transient immunity requirements using a single 500 W-rated component in compact SMA footprint. | Use Scenario: Protecting Ethernet PHY interfaces, DSL line drivers, and POTS line cards from lightning-induced longitudinal surges and induced transients. IC Role / Device Role / Timing Role: Bidirectional clamping element integrated into hybrid coupler or transformer secondary side to limit common-mode voltage swing to <12.0 V. Use Value: Supports IEC 61000-4-5 Level 4 (4 kV/2 Ω) testing with minimal board space and no polarity sensitivity during layout. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional TVS protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J7.0CA-M3/61 | Halogen-free, RoHS-compliant variant with identical electrical specs and SMA package; same thermal and clamping performance. | No functional difference; selected when halogen-free material compliance is required by end-equipment environmental policy. | Choose SMA5J7.0CA-M3/61 if halogen-free certification (e.g., IEC 61249-2-21) is mandated for final product. |
| SMC5J7.0CA-E3 | Larger SMC (DO-214AB) package; same VWM/VBR/VC ratings but higher RθJA derating (50 °C/W vs. 80 °C/W) and 600 W PPPM rating. | Better thermal performance and surge margin; requires larger PCB footprint and different pad layout. | Choose SMC5J7.0CA-E3 when higher surge repetition rate or extended thermal margin is needed beyond SMA5J7.0CA-E3/61's 500 W capability. |
Compared with SMA5J7.0CA-M3/61, the SMA5J7.0CA-E3/61 offers identical protection performance with standard RoHS compliance; compared with SMC5J7.0CA-E3, it trades 100 W peak power and improved thermal resistance for 30% smaller board area and compatibility with tighter pitch layouts.
Availability
SMA5J7.0CA-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, full traceability, and long-term lifecycle support.
Supply support for SMA5J7.0CA-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 optoelectronics with emphasis on reliability, power density, and application-specific validation.
The SMA5J series is engineered for high-power-density transient suppression in space-constrained, high-reliability environments - particularly where bidirectional clamping, automated assembly, and AEC-Q101 qualification readiness are essential.
FAQ
What is the clamping voltage of the SMA5J7.0CA-E3/61 under maximum surge conditions?
The SMA5J7.0CA-E3/61 has a maximum clamping voltage (VC) of 12.0 V at 41.7 A peak pulse current (IPPM), measured with a 10/1000 µs waveform. This value is guaranteed across the full operating temperature range and defines the upper voltage limit imposed on protected circuits during transient events. The SMA5J7.0CA-E3/61 maintains this clamping performance due to its low incremental surge resistance and stable avalanche junction.
Is the SMA5J7.0CA-E3/61 suitable for automotive applications?
The SMA5J7.0CA-E3/61 is RoHS-compliant and qualified to MSL Level 1, but it is not AEC-Q101 certified in this specific suffix. For automotive use, Vishay offers the SMA5J7.0CAHE3_A variant (with HE3 suffix), which carries full AEC-Q101 qualification. The SMA5J7.0CA-E3/61 may be used in non-safety-critical automotive subsystems where qualification is not mandated, but design validation remains the customer's responsibility.
How does the bidirectional nature of the SMA5J7.0CA-E3/61 affect PCB layout?
The SMA5J7.0CA-E3/61 has no polarity marking and exhibits symmetrical electrical behavior in both directions, eliminating orientation constraints during placement. This simplifies PCB layout - no silkscreen polarity indicator is needed, and routing can be fully symmetric across differential or AC-coupled lines. The SMA5J7.0CA-E3/61 must still be mounted on the recommended 5.0 mm × 5.0 mm copper pads per terminal to ensure thermal and surge performance.
What is the maximum junction temperature rating for the SMA5J7.0CA-E3/61?
The SMA5J7.0CA-E3/61 has a maximum junction temperature (TJ max.) of +150 °C, consistent across its entire operating range. This rating is supported by its thermal resistance of RθJA = 80 °C/W when mounted on the specified 0.2" × 0.2" copper pads. Derating curves in the datasheet show allowable pulse power reduction above 25 °C ambient, ensuring safe operation in industrial and under-hood environments.
Does the SMA5J7.0CA-E3/61 meet industry surge immunity standards?
Yes - the SMA5J7.0CA-E3/61 is designed to support compliance with IEC 61000-4-2 (ESD), IEC 61000-4-4 (EFT), and IEC 61000-4-5 (surge) when applied per recommended layout and mounting guidelines. Its 500 W peak pulse power and sub-1 ns response time enable effective suppression of standardized transients; however, system-level validation per end-equipment requirements remains necessary for full certification.
SMA5J7.0CA-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):
- 7V
- Voltage - Breakdown (Min):
- 7.78V
- Voltage - Clamping (Max) @ Ipp:
- 12V
- Current - Peak Pulse (10/1000µs):
- 41.7A
- 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)
SMA5J7.0CA-E3/61 FAQ
1.How can I place an order for SMA5J7.0CA-E3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J7.0CA-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 SMA5J7.0CA-E3/61 reliable?
The price and inventory of SMA5J7.0CA-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 SMA5J7.0CA-E3/61 is usually 5 days.
3.What payment methods are accepted for SMA5J7.0CA-E3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J7.0CA-E3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J7.0CA-E3/61?
SMA5J7.0CA-E3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J7.0CA-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 SMA5J7.0CA-E3/61?
For technical support, including SMA5J7.0CA-E3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J7.0CA-E3/61 requirements.
6.How does Aetrix verify that SMA5J7.0CA-E3/61 is sourced from the original manufacturer or authorized distributors?
All SMA5J7.0CA-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 SMA5J7.0CA-E3/61 meets industry standards.
7.What is the process for return or replacement of SMA5J7.0CA-E3/61?
All SMA5J7.0CA-E3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J7.0CA-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 SMA5J7.0CA-E3/61 part is unused and in its original packaging.
Return procedure for SMA5J7.0CA-E3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA5J7.0CA-E3/61 Tags
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