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Vishay General Semiconductor - Diodes Division SMA5J7.0A-E3/61
- Part No.:
- SMA5J7.0A-E3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J7.0A-E3/61.pdf
- Description:
- TVS DIODE 7VWM 12VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:6,281
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Product details
Overview
SMA5J7.0A-E3/61 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, designed for primary overvoltage protection of DC power rails and signal lines. It features 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 in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the SMA5J7.0A-E3/61 datasheet, SMA5J7.0A-E3/61 pinout, SMA5J7.0A-E3/61 application, or SMA5J7.0A-E3/61 equivalent, key selection criteria include verified clamping performance under 41.7 A surge, unidirectional polarity with cathode band marking, RoHS-compliant matte tin terminals, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: when reverse voltage exceeds VWM = 7.0 V, it avalanches at VBR (min 7.78 V, max 8.60 V) and limits transient energy by clamping to ≤12.0 V at IPPM = 41.7 A. Its glass-passivated junction ensures stable leakage (<5 μA at VWM) and fast response (<1 ns).
Thermal design relies on RθJA = 80 °C/W (typ.) and RθJL = 25 °C/W (typ.), with maximum junction temperature rated at +150 °C. It meets MSL Level 1 (260 °C peak reflow) and supports AEC-Q101 qualification via HE3/HM3 variants - though SMA5J7.0A-E3/61 itself is commercial-grade RoHS-compliant.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 7.0 V - Maximum continuous reverse operating voltage before conduction begins; defines safe DC rail margin. |
| VBR (min/max) | 7.78 V / 8.60 V at 10 mA - Confirmed avalanche onset range; ensures reliable triggering above nominal supply. |
| VC @ IPPM | 12.0 V at 41.7 A - Clamped voltage during 10/1000 μs surge; determines protected circuit's maximum stress level. |
| PPPM | 500 W - Peak pulse power handling capacity; enables robust suppression of inductive switching transients. |
| IPPM | 41.7 A - Peak surge current supported at VC; correlates directly with energy absorption capability (≈2.5 J). |
| Junction Temp | -55 °C to +150 °C - Operational and storage range; supports under-hood automotive and industrial ambient conditions. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Cathode indicated by black band on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / reverse surge return path | Connected to ground or low-impedance return in unidirectional clamp configuration. |
| Cathode | Reverse voltage sensing / clamping node | Connected to protected line (e.g., 5 V or 12 V rail); band-marked end defines polarity orientation. |
Key Features
| Feature | Design Value |
|---|---|
| Clamping Ratio (VC/VBR) | ≤1.54 - Tight ratio ensures minimal overvoltage overshoot during surge events. |
| Leakage Current | <5 μA at 7.0 V - Negligible standby power loss and no interference with high-impedance sensor inputs. |
| Response Time | <1 ns - Faster than most microsecond-scale transients (e.g., relay bounce, ESD), enabling effective front-end protection. |
| Surge Robustness | Withstands 40 A IFSM (8.3 ms half-sine) - Supports repeated inrush or fault-current exposure without degradation. |
| Mounting Compatibility | Optimized for 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads - Ensures thermal dissipation required for 500 W pulse rating. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load-dump and ISO 7637-2 pulses. IC Role / Device Role: Unidirectional shunt clamp placed between signal line and chassis ground. Use Value: Limits transient voltage to ≤12.0 V, preserving integrity of 3.3 V/5 V interface ICs and preventing latch-up or gate oxide damage. |
Use Scenario: Safeguarding digital input modules against field-wiring surges, relay coil flyback, and electrostatic discharge in factory automation cabinets. IC Role / Device Role: Primary overvoltage barrier on 24 V DC input channels prior to optocoupler or MCU GPIO. Use Value: Absorbs up to 500 W of transient energy without failure, eliminating need for secondary protection stages. |
| Consumer Power Adapter Input | Telecom Line Interface |
Use Scenario: Secondary-side DC output protection in AC/DC adapters powering USB-C PD devices or smart home hubs. IC Role / Device Role: Standoff-rated clamp on regulated 5 V/9 V/12 V outputs to prevent overvoltage propagation to downstream SoCs. Use Value: Maintains 7.0 V VWM margin while clamping to 12.0 V - compatible with tight-tolerance LDOs and PMICs. |
Use Scenario: Surge suppression on Ethernet PHY power rails (e.g., 3.3 V bias for magnetics) and auxiliary control lines in base station equipment. IC Role / Device Role: Fast-response shunt element co-located with PoE injectors or management controllers. Use Value: Low incremental surge resistance minimizes VC rise under high di/dt, ensuring compliance with IEC 61000-4-5 Level 4 (4 kV) |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J7.0A-M3/61 | Halogen-free, RoHS-compliant variant with identical electrical specs and thermal ratings. | No functional difference; selected where halogen-free material compliance is mandated (e.g., EU public infrastructure projects). | Direct substitution if halogen-free certification is required; same footprint and assembly process. |
| SMA5J7.0AHE3_A | AEC-Q101 qualified version with same VWM, VBR, and VC; validated for automotive temperature cycling and humidity testing. | Required for under-hood or ADAS module designs needing automotive reliability validation. | Choose only when AEC-Q101 qualification is contractually or safety-critical; not needed for commercial industrial use. |
Compared with SMA5J7.0A-E3/61, the M3/61 offers identical protection performance with halogen-free packaging, while the HE3_A adds automotive qualification without altering clamping behavior - enabling tiered sourcing based on compliance needs rather than electrical redesign.
Availability
SMA5J7.0A-E3/61 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and consumer power adapter outputs requiring stable component supply, consistent lead-time visibility, and full traceability.
Supply support for SMA5J7.0A-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 high-reliability, high-power-density solutions.
The SMA5J series delivers high-power transient suppression in compact surface-mount packages, targeting cost-sensitive yet robust protection needs in automotive, industrial, and telecom power and signal lines.
FAQ
What is the clamping voltage of the SMA5J7.0A-E3/61 under maximum rated surge current?
The SMA5J7.0A-E3/61 clamps to a maximum of 12.0 V when subjected to its rated peak pulse current of 41.7 A using the standard 10/1000 μs waveform. This value is measured at TA = 25 °C on recommended 5.0 mm × 5.0 mm copper pads and defines the upper voltage limit imposed on protected circuitry during transient events.
Is the SMA5J7.0A-E3/61 suitable for bidirectional transient suppression?
No - the SMA5J7.0A-E3/61 is a unidirectional TVS diode, indicated by the "A" suffix and cathode band marking. For bidirectional operation, Vishay specifies part numbers ending in "CA" (e.g., SMA5J7.0CA). Using SMA5J7.0A-E3/61 on AC or symmetrical signal lines would result in forward conduction during negative half-cycles.
Does the SMA5J7.0A-E3/61 meet automotive qualification standards?
The SMA5J7.0A-E3/61 itself is a commercial-grade, RoHS-compliant part and is not AEC-Q101 qualified. However, Vishay offers the functionally identical SMA5J7.0AHE3_A variant, which carries full AEC-Q101 qualification for automotive applications - including temperature cycling, humidity testing, and mechanical shock validation.
What is the maximum leakage current specification for the SMA5J7.0A-E3/61 at its stand-off voltage?
At VWM = 7.0 V and TA = 25 °C, the SMA5J7.0A-E3/61 exhibits a maximum reverse leakage current of 5 μA. This low leakage ensures minimal power loss and avoids interference with high-impedance circuits such as precision sensor bias networks or battery-monitoring inputs.
Can the SMA5J7.0A-E3/61 be used in place of SMA5J6.0A or SMA5J8.0A without circuit modification?
No - direct substitution requires verification of system-level voltage margins. SMA5J7.0A-E3/61 has VWM = 7.0 V, differing from SMA5J6.0A (6.0 V) and SMA5J8.0A (8.0 V). Using it in a 6 V system risks premature conduction; in an 8 V system, it may fail to clamp before downstream IC damage occurs. Always match VWM to nominal rail voltage with ≥10 % margin.
SMA5J7.0A-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:
- 1
- Bidirectional Channels:
- -
- 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)
SMA5J7.0A-E3/61 FAQ
1.How can I place an order for SMA5J7.0A-E3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J7.0A-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 SMA5J7.0A-E3/61 reliable?
The price and inventory of SMA5J7.0A-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 SMA5J7.0A-E3/61 is usually 5 days.
3.What payment methods are accepted for SMA5J7.0A-E3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J7.0A-E3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J7.0A-E3/61?
SMA5J7.0A-E3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J7.0A-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 SMA5J7.0A-E3/61?
For technical support, including SMA5J7.0A-E3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J7.0A-E3/61 requirements.
6.How does Aetrix verify that SMA5J7.0A-E3/61 is sourced from the original manufacturer or authorized distributors?
All SMA5J7.0A-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 SMA5J7.0A-E3/61 meets industry standards.
7.What is the process for return or replacement of SMA5J7.0A-E3/61?
All SMA5J7.0A-E3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J7.0A-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 SMA5J7.0A-E3/61 part is unused and in its original packaging.
Return procedure for SMA5J7.0A-E3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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