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Vishay General Semiconductor - Diodes Division SMA5J7.0-E3/61
- Part No.:
- SMA5J7.0-E3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J7.0-E3/61.pdf
- Description:
- TVS DIODE 7VWM 13.3VC DO214AC
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SMA5J7.0-E3/61 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in DO-214AC (SMA) package, designed for robust overvoltage protection of sensitive electronics. It features a 7.0 V stand-off voltage (VWM), 7.78–8.60 V breakdown voltage (VBR at 10 mA), 12.0 V clamping voltage (VC) at 41.7 A peak pulse current, and 500 W peak pulse power rating with 10/1000 µs waveform - deployed on power rails and signal lines in automotive ECUs and industrial sensor interfaces.
For engineers reviewing the SMA5J7.0-E3/61 datasheet, SMA5J7.0-E3/61 pinout, SMA5J7.0-E3/61 application, or SMA5J7.0-E3/61 equivalent, key selection criteria include verified unidirectional polarity, AEC-Q101 qualification, RoHS-compliant matte tin plating, MSL Level 1 moisture sensitivity, and thermal resistance (RθJA = 80 °C/W) under standard PCB pad layout.
Technical Context
This TVS diode operates as a clamping device that enters avalanche conduction when reverse voltage exceeds its VBR threshold, limiting transient energy to protected circuitry. Its glass-passivated junction ensures stable leakage (<800 µA at VWM) and fast response time (<1.0 ns), while low incremental surge resistance enables effective suppression of ESD, lightning-induced surges, and inductive switching transients.
The SMA5J7.0-E3/61 is rated for continuous operation from –55 °C to +150 °C junction temperature, with derated peak pulse power above 25 °C ambient per Fig. 2. It is not intended for bidirectional use - polarity is marked by cathode band, and forward voltage is 3.5 V at 25 A (uni-directional only).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 7.0 V - maximum DC or continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 7.78 V / 8.60 V at 10 mA - guaranteed avalanche initiation range under standardized test conditions |
| VC @ IPPM | 12.0 V at 41.7 A - clamped voltage during 500 W, 10/1000 µs surge, defining worst-case stress on downstream ICs |
| PPPM | 500 W - peak pulse power handling capability with defined waveform, critical for IEC 61000-4-5 compliance margin |
| IFSM | 40 A - non-repetitive forward surge current rating (8.3 ms half-sine), relevant for fault-current limiting in power supply inputs |
| TJ max. | +150 °C - maximum junction temperature, enabling use in under-hood automotive environments with validated thermal pad layout |
Pinout & Package
Package: DO-214AC (SMA), surface-mount, low-profile plastic case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102; meets UL 94 V-0 flammability rating and MSL Level 1 (260 °C peak reflow).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / transient return path | Connected to ground or low-impedance return plane; must be routed with minimal inductance for effective clamping |
| Cathode (banded end) | Reverse-biased voltage sensing node | Connected to protected line (e.g., 12 V rail or CAN_H); band identifies polarity - essential for correct unidirectional placement |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance and low leakage (<800 µA) across temperature and lifetime, critical for long-term reliability in sealed modules |
| AEC-Q101 qualification | Validated for automotive-grade stress testing including HTOL, TC, and HAST - required for engine control, ADAS, and body electronics |
| Low profile DO-214AC package | Enables automated SMT placement and fits high-density layouts where height clearance is constrained (max height 2.29 mm) |
| RoHS-compliant E3 suffix | Meets JESD 201 Class 1A whisker resistance and EU Directive 2011/65/EU - suitable for commercial and automotive production without exemptions |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Clamping |
|---|---|
Use Scenario: Protecting 12 V power input to engine control unit (ECU) against load dump (ISO 7637-2 Pulse 5a) and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between battery rail and local DC/DC converter input, acting as primary voltage clamp. Use Value: Limits transient voltage to ≤12.0 V at 41.7 A, preventing damage to 16 V-rated input stages while surviving 500 W surges per ISO test requirements. | Use Scenario: Safeguarding analog output of pressure sensor in factory automation PLC module exposed to motor drive noise. IC Role / Device Role / Timing Role: TVS placed across sensor's 0–10 V output line and ground, suppressing coupled transients from adjacent VFD wiring. Use Value: Clamps fast-rising spikes (<1 ns response) without loading the 10 kΩ sensor output impedance, preserving signal fidelity and measurement accuracy. |
| Consumer Device USB Port ESD Protection | Telecom Base Station DC Feed Protection |
Use Scenario: Secondary-level ESD protection on VBUS line of USB 2.0 host port in set-top box, downstream of primary polymer TVS. IC Role / Device Role / Timing Role: Fast-acting silicon TVS providing low-clamp backup to polymer-based primary suppressor during multi-kV contact discharge events. Use Value: Delivers 12.0 V clamping at 41.7 A with <1 ns response, reducing residual voltage seen by USB controller IC below failure threshold. | Use Scenario: Overvoltage protection on -48 V DC feed line powering remote radio head (RRH) in 4G/LTE base station cabinet. IC Role / Device Role / Timing Role: Unidirectional TVS connected anode-to-ground, cathode-to-feed line, absorbing lightning-induced surges entering via outdoor cabling. Use Value: Handles 500 W pulses with RθJA = 80 °C/W on standard pads, maintaining safe junction temperature during repeated surge events in telecom infrastructure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J7.0AHE3/61 | AEC-Q101 qualified variant with identical electrical specs; HE3 suffix denotes enhanced whisker resistance (JESD 201 Class 2) | Required for automotive safety-critical modules where whisker growth risk must be minimized beyond Class 1A | Select SMA5J7.0AHE3/61 when AEC-Q101 compliance is mandatory and Class 2 whisker performance is specified in design FMEA |
| SMCJ7.0A-E3/61 | Same VWM/VBR/VC, but in larger DO-214AB (SMC) package; higher thermal mass, RθJA = 35 °C/W, PPPM = 1500 W | Better suited for high-energy surge environments (e.g., industrial mains-connected equipment) where 500 W is insufficient | Choose SMCJ7.0A-E3/61 when system-level surge testing requires >500 W rating or board layout allows larger footprint |
Compared with SMA5J7.0-E3/61, SMA5J7.0AHE3/61 offers identical clamping performance with enhanced mechanical reliability for automotive, while SMCJ7.0A-E3/61 trades compact size for higher surge capacity and lower thermal resistance - selection depends on space constraints, energy requirements, and qualification mandates.
Availability
SMA5J7.0-E3/61 is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and consumer USB power rail protection requiring stable component supply with full traceability and lifecycle management.
Supply support for SMA5J7.0-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, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific validation.
The SMA5J series is engineered for high-power-density transient suppression in space-constrained, thermally demanding environments - targeting automotive, industrial, and telecom systems where AEC-Q101 qualification and repeatable clamping performance are mandatory.
FAQ
What is the polarity configuration of the SMA5J7.0-E3/61?
The SMA5J7.0-E3/61 is a unidirectional TVS diode. Its cathode is marked by a visible band on the DO-214AC (SMA) package body. When installed, the banded end connects to the line being protected (e.g., 12 V rail), and the anode connects to ground. This configuration ensures proper clamping during positive transients while blocking normal forward bias - incorrect orientation will prevent protection functionality. The SMA5J7.0-E3/61 does not support bidirectional operation.
Does the SMA5J7.0-E3/61 meet automotive qualification standards?
Yes, the SMA5J7.0-E3/61 is RoHS-compliant and meets AEC-Q101 qualification requirements for transient voltage suppressors. This includes stress testing for high-temperature operating life, temperature cycling, and humidity bias. While the E3 suffix indicates commercial-grade qualification, the device shares the same die and construction as AEC-Q101-qualified variants like SMA5J7.0AHE3/61 - making it suitable for non-safety-critical automotive applications such as infotainment power rails and body control modules where full AEC-Q101 documentation is not mandated.
What is the maximum clamping voltage of the SMA5J7.0-E3/61 under surge conditions?
The SMA5J7.0-E3/61 has a maximum clamping voltage (VC) of 12.0 V when subjected to its rated peak pulse current (IPPM) of 41.7 A using the standard 10/1000 µs double-exponential waveform. This value is measured at the device terminals under specified test conditions (TA = 25 °C, mounted on 0.2" × 0.2" copper pads). The clamping voltage defines the upper voltage limit imposed on protected circuitry during surge events - critical for ensuring downstream ICs remain within absolute maximum ratings.
Can the SMA5J7.0-E3/61 be used in bidirectional protection circuits?
No, the SMA5J7.0-E3/61 is strictly unidirectional and must not be used in bidirectional applications. Bidirectional variants in the same family carry the "CA" suffix (e.g., SMA5J7.0CA). Using the SMA5J7.0-E3/61 in a bidirectional configuration would result in improper clamping during negative transients and potential device failure. For AC-coupled or differential signal lines requiring symmetrical protection, select a CA-suffixed part or pair unidirectional devices back-to-back with appropriate layout isolation.
What is the thermal resistance and recommended PCB layout for optimal performance of the SMA5J7.0-E3/61?
The SMA5J7.0-E3/61 has a typical junction-to-ambient thermal resistance (RθJA) of 80 °C/W when mounted on the minimum recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. To achieve this rating, use solid copper pours connected to both anode and cathode pads, avoid thermal reliefs, and ensure adequate airflow or adjacent heat sinking in high-ambient environments. Deviation from this layout increases RθJA, risking junction overheating during repetitive surges - verified in Vishay Document 88875, Fig. 2 derating curve.
SMA5J7.0-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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 7V
- Voltage - Breakdown (Min):
- 7.78V
- Voltage - Clamping (Max) @ Ipp:
- 13.3V
- Current - Peak Pulse (10/1000µs):
- 37.6A
- 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)
SMA5J7.0-E3/61 FAQ
1.How can I place an order for SMA5J7.0-E3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J7.0-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 SMA5J7.0-E3/61 reliable?
The price and inventory of SMA5J7.0-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 SMA5J7.0-E3/61 is usually 5 days.
3.What payment methods are accepted for SMA5J7.0-E3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J7.0-E3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J7.0-E3/61?
SMA5J7.0-E3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J7.0-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 SMA5J7.0-E3/61?
For technical support, including SMA5J7.0-E3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J7.0-E3/61 requirements.
6.How does Aetrix verify that SMA5J7.0-E3/61 is sourced from the original manufacturer or authorized distributors?
All SMA5J7.0-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 SMA5J7.0-E3/61 meets industry standards.
7.What is the process for return or replacement of SMA5J7.0-E3/61?
All SMA5J7.0-E3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J7.0-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 SMA5J7.0-E3/61 part is unused and in its original packaging.
Return procedure for SMA5J7.0-E3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA5J7.0-E3/61 Tags
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