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Vishay General Semiconductor - Diodes Division SMA5J7.0CA-E3/5A
- Part No.:
- SMA5J7.0CA-E3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J7.0CA-E3/5A.pdf
- Description:
- TVS DIODE 7VWM 12VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,646
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Product details
Overview
SMA5J7.0CA-E3/5A 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), 6.4–7.07 V breakdown voltage (VBR), 500 W peak pulse power (PPPM), and clamps transients to ≤12.0 V at 41.7 A IPPM (10/1000 μs waveform), commonly used in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the SMA5J7.0CA-E3/5A datasheet, SMA5J7.0CA-E3/5A pinout, SMA5J7.0CA-E3/5A application, or SMA5J7.0CA-E3/5A equivalent, key selection criteria include bidirectional polarity, 12.0 V clamping voltage at rated surge current, RoHS-compliant E3 suffix, 13" tape-and-reel packaging (5A), and AEC-Q101 qualification eligibility via HE3 variant.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, with identical electrical characteristics in forward and reverse directions per device marking and specification table. Its glass-passivated junction ensures stable VBR tolerance and low leakage (≤800 μA at VWM), while the low incremental surge resistance enables effective clamping during fast-rising transients such as ESD or inductive switching spikes.
The SMA5J7.0CA-E3/5A is thermally rated for TJ = –55 °C to +150 °C and exhibits RθJA = 80 °C/W (typical) when mounted on 5.0 mm × 5.0 mm copper pads. Its 10/1000 μs surge rating is validated under non-repetitive conditions, with derating applied above TA = 25 °C per Figure 2 of the datasheet.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 7.0 V - Maximum continuous reverse stand-off voltage before conduction begins; defines safe operating margin below clamping threshold. |
| VBR min/max | 6.4 V / 7.07 V at IT = 10 mA - Confirmed breakdown range ensures reliable turn-on without premature leakage in 5 V–7 V systems. |
| VC @ IPPM | 12.0 V at 41.7 A - Clamping voltage under full 500 W surge; protects downstream ICs with VDD ≤ 12 V or logic inputs rated ≥13.2 V. |
| PPPM | 500 W - Peak pulse power handling with 10/1000 μs waveform; supports IEC 61000-4-5 Level 3 (1 kV/2 Ω) surge immunity. |
| ID @ VWM | ≤800 μA - Reverse leakage at rated stand-off; ensures minimal quiescent power loss in battery-powered or high-impedance sensor circuits. |
| Package | SMA (DO-214AC) - Surface-mount outline with 5.28 mm length, 4.50 mm width, and 2.29 mm height; compatible with standard SMT pick-and-place. |
Pinout & Package
Package: SMA (DO-214AC), molded plastic case with matte tin-plated leads, UL 94 V-0 rated, MSL Level 1 (260 °C peak reflow). Bidirectional construction means no polarity marking; terminals are symmetrical and interchangeable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Both terminals serve identically in either polarity; no cathode band marking required for bidirectional operation. |
| Case | Thermal and mechanical interface | Plastic body provides electrical isolation; thermal path relies on soldered pad area (5.0 mm × 5.0 mm recommended per terminal). |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional suppression | Enables single-device protection of AC-coupled or floating signal lines (e.g., RS-485, CAN, sensor bridges) without polarity concerns. |
| 500 W peak pulse power | Meets IEC 61000-4-5 surge test requirements for industrial and automotive environments where 1 kV–2 kV line-to-ground transients occur. |
| Low clamping ratio (VC/VBR ≈ 1.7) | Ensures tight voltage limiting relative to breakdown; reduces risk of overvoltage stress on protected ICs during fast transients. |
| AEC-Q101 qualification option | HE3/HM3 variants support automotive-grade reliability; SMA5J7.0CA-E3/5A itself is commercial-grade but shares identical die and package design. |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
Use Scenario: Protecting analog outputs of pressure or temperature sensors in engine control modules exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional TVS clamp placed between sensor output and microcontroller ADC input. Use Value: Limits transient excursions to ≤12.0 V, preserving ADC integrity and preventing latch-up in 3.3 V or 5 V signal chains. |
Use Scenario: Safeguarding 24 V digital input channels on PLC modules against field-wiring induced surges and contact bounce. IC Role / Device Role / Timing Role: Primary surge shunt located at connector entry point before optocoupler or level-shifter. Use Value: Absorbs up to 500 W of energy without degradation, maintaining >10⁵ surge cycles per MIL-STD-883H Method 3015.8. |
| Telecom Line Interface | Consumer USB Port Protection |
Use Scenario: Shielding RS-485 transceivers in base station backhaul links from lightning-induced common-mode surges on twisted-pair lines. IC Role / Device Role / Timing Role: Differential pair protector placed across A/B lines with shared ground reference. Use Value: Symmetric clamping ensures equal voltage limiting in both directions, preserving signal integrity during ±1 kV EFT bursts. |
Use Scenario: Guarding USB 2.0 D+/D– lines in portable media players against ESD events exceeding ±15 kV air discharge (IEC 61000-4-2). IC Role / Device Role / Timing Role: Low-capacitance TVS (CJ < 100 pF at VWM) integrated adjacent to USB connector. Use Value: Sub-12 V clamping prevents damage to PHY transceivers while adding <0.5 pF parasitic capacitance to data path. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J7.0CA-M3/5A | Halogen-free, RoHS-compliant variant with identical electrical specs and package; same 7.0 V VWM and 12.0 V VC. | No functional difference; selected where halogen-free material compliance is mandated by OEM or regional regulations. | Choose SMA5J7.0CA-M3/5A when environmental compliance requires halogen-free molding compound without altering circuit design. |
| SMA6J7.0CA-E3/5A | 600 W PPPM rating (vs. 500 W), same VWM/VBR/VC, identical SMA package; higher surge capacity due to larger die area. | Supports higher-energy transients (e.g., IEC 61000-4-5 Level 4); may require layout review for thermal dissipation under repeated surges. | Choose SMA6J7.0CA-E3/5A when system-level surge testing exceeds 500 W or long-term reliability under repetitive 400 W pulses is required. |
Compared with SMA5J7.0CA-E3/5A, the M3 variant offers identical protection performance with halogen-free materials, while the SMA6J7.0CA-E3/5A delivers 20 % higher surge power handling-enabling longer lifetime in harsher electromagnetic environments without changing PCB footprint.
Availability
SMA5J7.0CA-E3/5A is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and telecom line protection requiring stable component supply, RoHS compliance, and 13" tape-and-reel delivery for high-volume SMT assembly.
Supply support for SMA5J7.0CA-E3/5A 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-grade qualification.
The SMA5J series is engineered for high-power-density transient suppression in space-constrained surface-mount applications, targeting automotive, industrial, and telecom systems where robustness against ISO 7637-2 and IEC 61000-4-5 threats is critical.
FAQ
What is the polarity configuration of SMA5J7.0CA-E3/5A?
The SMA5J7.0CA-E3/5A is a bidirectional TVS diode, meaning it conducts identically in both forward and reverse directions. Unlike unidirectional variants (e.g., SMA5J7.0A), it has no cathode band marking and is intended for AC or floating signal line protection where polarity reversal may occur. This behavior is confirmed in the "DEVICES FOR BIDIRECTION APPLICATIONS" section and electrical tables of Vishay document 88875.
Does SMA5J7.0CA-E3/5A meet AEC-Q101 qualification?
SMA5J7.0CA-E3/5A itself is a commercial-grade part with E3 suffix (RoHS-compliant, non-automotive). However, the identical die and package are available in AEC-Q101 qualified versions under ordering codes SMA5J7.0CAHE3_A/I (HE3 suffix) or SMA5J7.0CAHM3_A/I (HM3 suffix), as noted in the "Ordering Information" and "Mechanical Data" sections of the datasheet.
What is the maximum clamping voltage for SMA5J7.0CA-E3/5A under surge conditions?
The maximum clamping voltage (VC) for SMA5J7.0CA-E3/5A is 12.0 V, measured at the peak pulse current (IPPM) of 41.7 A using a 10/1000 μs waveform. This value is specified in the "Electrical Characteristics" table of Vishay document 88875 and defines the upper voltage limit imposed on protected circuitry during worst-case transient events.
How does the 5A packaging differ from the 61 packaging for SMA5J7.0CA-E3/5A?
The "5A" in SMA5J7.0CA-E3/5A denotes a 13-inch diameter plastic tape-and-reel format containing 7500 units per reel, optimized for high-volume automated assembly. In contrast, the "61" code (e.g., SMA5J7.0CA-E3/61) specifies a 7-inch reel with 1800 units-suited for prototyping or lower-volume production runs. Both share identical electrical and mechanical specifications.
Is thermal derating required for SMA5J7.0CA-E3/5A above 25 °C ambient?
Yes. The peak pulse power rating of SMA5J7.0CA-E3/5A must be derated linearly above TA = 25 °C, following the curve in Figure 2 of Vishay document 88875. At 85 °C ambient, the usable PPPM drops to approximately 350 W; at 125 °C, it falls to ~200 W. Proper PCB copper pad area (5.0 mm × 5.0 mm per terminal) is essential to maintain thermal performance.
SMA5J7.0CA-E3/5A 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-E3/5A FAQ
1.How can I place an order for SMA5J7.0CA-E3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J7.0CA-E3/5A 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-E3/5A reliable?
The price and inventory of SMA5J7.0CA-E3/5A 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-E3/5A is usually 5 days.
3.What payment methods are accepted for SMA5J7.0CA-E3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J7.0CA-E3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J7.0CA-E3/5A?
SMA5J7.0CA-E3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J7.0CA-E3/5A 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-E3/5A?
For technical support, including SMA5J7.0CA-E3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J7.0CA-E3/5A requirements.
6.How does Aetrix verify that SMA5J7.0CA-E3/5A is sourced from the original manufacturer or authorized distributors?
All SMA5J7.0CA-E3/5A 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-E3/5A meets industry standards.
7.What is the process for return or replacement of SMA5J7.0CA-E3/5A?
All SMA5J7.0CA-E3/5A units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J7.0CA-E3/5A, 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-E3/5A part is unused and in its original packaging.
Return procedure for SMA5J7.0CA-E3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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