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Vishay General Semiconductor - Diodes Division SAC7.0-E3/54
- Part No.:
- SAC7.0-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SAC7.0-E3/54.pdf
- Description:
- TVS DIODE 7VWM 12.6VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:1,402
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Product details
Overview
SAC7.0-E3/54 from Vishay General Semiconductor is a unidirectional low-capacitance TRANSZORB® transient voltage suppressor in DO-15 package, rated for 500 W peak pulse power (10/1000 μs), 7 V working standoff voltage, 8.33 V minimum breakdown voltage at 1.0 mA, 12.6 V maximum clamping voltage at 5.0 A, and 175 °C max junction temperature - used to protect MOSFETs and sensor signal lines from inductive switching transients in industrial control systems.
For engineers reviewing the SAC7.0-E3/54 datasheet, SAC7.0-E3/54 pinout, SAC7.0-E3/54 application, or SAC7.0-E3/54 equivalent, key selection criteria include clamping voltage margin versus protected IC's absolute maximum rating, thermal derating above 25 °C, unidirectional polarity alignment with DC-biased signal paths, and DO-15 lead-form compatibility with existing PCB footprints.
Technical Context
The SAC7.0-E3/54 operates as a silicon avalanche diode with glass-passivated junction, delivering fast response time (<1 ns) and low incremental surge resistance to clamp transient overvoltages before downstream components are damaged. Its unidirectional configuration supports DC-coupled protection where reverse conduction is blocked by system biasing.
Designed for repetitive surge events at 0.01 % duty cycle, it sustains 500 W peak pulse power under standardized 10/1000 μs waveform while maintaining ≤12.6 V clamping at 5.0 A IPPM - enabling robust protection of 3.3 V and 5 V logic interfaces without overstressing I/O pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 7 V - Maximum continuous reverse operating voltage before leakage exceeds 300 μA; sets upper limit for DC bias on protected line. |
| VBR (min) | 8.33 V at IT = 1.0 mA - Ensures reliable avalanche initiation above normal operating voltage with margin against false triggering. |
| VC (max) | 12.6 V at IPP = 5.0 A - Clamped voltage seen by protected device during worst-case surge; must stay below IC's absolute max rating. |
| PPPM | 500 W (10/1000 μs) - Peak transient energy absorption capability; defines survivability against common inductive load spikes. |
| Junction Temp | –55 °C to +175 °C - Enables deployment in under-hood automotive or high-temperature industrial enclosures without derating. |
| Capacitance | 50 pF at 0 V - Low enough to avoid signal integrity degradation on data lines up to ~10 MHz. |
Pinout & Package
DO-15 (DO-204AC) molded epoxy package with matte tin-plated leads; cathode indicated by color band; lead length ≥1.0 inch (25.4 mm); compliant with JESD 22-B106 (275 °C, 10 s solder dip).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or lowest potential node; establishes clamping reference for unidirectional operation. |
| Cathode | Protected line interface | Connected to signal or power line being protected; avalanche conduction occurs when cathode-to-anode voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable, repeatable avalanche characteristics and long-term reliability under repeated surge stress. |
| 500 W peak pulse power (10/1000 μs) | Supports protection against high-energy transients from relay coils, solenoids, and motor drivers without thermal runaway. |
| Low 50 pF junction capacitance | Minimizes loading on high-speed digital or analog sensor outputs (e.g., I²C, UART, thermistor bridges). |
| Unidirectional polarity | Prevents reverse conduction in DC-biased circuits, eliminating risk of latch-up or unintended current paths. |
Applications
| Industrial Motor Control | Automotive Sensor Interface |
|---|---|
Use Scenario: Protecting gate drivers and feedback signal lines from back-EMF spikes generated by brushed DC motors and contactors. IC Role / Device Role / Timing Role: Transient voltage suppressor placed directly at MOSFET gate input and analog sensor output nodes. Use Value: Limits clamped voltage to 12.6 V, ensuring gate oxide integrity and ADC input safety within 3.3 V/5 V supply domains. | Use Scenario: Shielding LIN bus transceivers and temperature/pressure sensor outputs from battery dump and load-dump events. IC Role / Device Role / Timing Role: Unidirectional TVS connected between signal line and chassis ground, aligned with DC bias direction. Use Value: Responds in <1 ns to clamp transients before they propagate into ECU front-end circuitry. |
| Consumer Power Adapter | Telecom Line Card Protection |
Use Scenario: Safeguarding USB-C PD controller communication lines and VBUS monitoring inputs against ESD and AC line coupling. IC Role / Device Role / Timing Role: Low-capacitance TVS mounted adjacent to connector pins to minimize trace inductance. Use Value: 50 pF capacitance avoids signal distortion on CC and SBU lines operating up to 10 Mbps. | Use Scenario: Guarding Ethernet PHY differential pairs and management I²C buses from lightning-induced surges on PoE-powered line cards. IC Role / Device Role / Timing Role: Paired unidirectional SAC7.0-E3/54 devices per line, referenced to local ground plane. Use Value: 500 W rating handles IEC 61000-4-5 Level 4 (4 kV) surge waveforms without degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ7.0A | DO-214AA package; 7.0 V VWM; 12.6 V VC at 5.0 A; same PPPM but higher thermal mass. | Surface-mount footprint; better suited for automated assembly and space-constrained layouts. | Select SMBJ7.0A when board real estate is limited and reflow compatibility is required. |
| P6KE7.0A | DO-15 package; 7.0 V VWM; 12.6 V VC at 5.0 A; identical mechanical form but lower surge life endurance (1000 pulses vs. 10⁴). | Legacy design reuse; suitable for cost-sensitive, non-critical applications with infrequent transients. | Choose P6KE7.0A only if long-term surge cycling is not required and legacy BOM continuity is prioritized. |
Compared with SMBJ7.0A and P6KE7.0A, the SAC7.0-E3/54 offers superior surge endurance (10⁴ cycles), tighter VBR tolerance (±5 % typical), and RoHS-compliant E3 plating - making it preferred for industrial-grade designs requiring field reliability and extended service life.
Availability
SAC7.0-E3/54 is available at Aetrix Electronics and suitable for industrial motor control, automotive sensor interface, and telecom line card protection requiring stable component supply, long-lifecycle support, and traceable sourcing.
Supply support for SAC7.0-E3/54 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, and transient protection devices with emphasis on reliability, ruggedness, and application-specific optimization.
The SAC series is engineered for high-energy transient suppression in harsh environments - targeting industrial automation, automotive subsystems, and infrastructure equipment where failure modes must be mitigated without compromising signal fidelity.
FAQ
What is the maximum clamping voltage of the SAC7.0-E3/54 at 5.0 A peak pulse current?
The SAC7.0-E3/54 has a maximum clamping voltage (VC) of 12.6 V when subjected to a 5.0 A peak pulse current with a 10/1000 μs waveform. This value is guaranteed across temperature and ensures protected circuitry remains within safe operating limits. The SAC7.0-E3/54 achieves this performance using a glass-passivated silicon junction optimized for low dynamic impedance during avalanche conduction.
Is the SAC7.0-E3/54 suitable for protecting bidirectional signal lines like RS-485 or CAN?
No - the SAC7.0-E3/54 is unidirectional and intended for DC-biased or single-polarity signal paths. For bidirectional lines such as RS-485 or CAN, a pair of SAC7.0-E3/54 devices must be used in anti-parallel configuration, or a dedicated bidirectional TVS like SMAJ7.0CA should be selected. Using SAC7.0-E3/54 alone on AC-coupled lines risks reverse conduction and improper clamping.
What is the junction capacitance of the SAC7.0-E3/54 and how does it affect high-speed signal lines?
The SAC7.0-E3/54 exhibits 50 pF junction capacitance at 0 V, measured per standard test conditions. This low value minimizes capacitive loading on signal lines operating up to ~10 MHz, preserving rise/fall times and reducing jitter in interfaces such as I²C, SPI, and analog sensor outputs. It is not recommended for >50 MHz RF paths where sub-5 pF devices are required.
Does the SAC7.0-E3/54 meet RoHS and lead-free assembly requirements?
Yes - the SAC7.0-E3/54 carries the E3 suffix, indicating full RoHS compliance and commercial-grade qualification. Its matte tin-plated leads are solderable per J-STD-002 and JESD 22-B102, and it passes JESD 201 Class 1A whisker testing. The molding compound meets UL 94 V-0 flammability rating, supporting lead-free reflow profiles up to 260 °C peak.
How does thermal derating impact the power dissipation capability of the SAC7.0-E3/54 above 25 °C?
The SAC7.0-E3/54 has a 3.0 W steady-state power dissipation rating at TL = 75 °C on an infinite heatsink, and its power capability decreases linearly above 25 °C ambient per Figure 2 in the datasheet. At 100 °C ambient, usable power drops to approximately 1.5 W. Engineers must apply this derating curve when designing for enclosure temperatures exceeding room temperature, especially in sealed industrial enclosures.
SAC7.0-E3/54 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 7V
- Voltage - Breakdown (Min):
- 8.33V
- Voltage - Clamping (Max) @ Ipp:
- 12.6V
- Current - Peak Pulse (10/1000µs):
- 38A
- Power - Peak Pulse:
- 500W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AC (DO-15)
SAC7.0-E3/54 FAQ
1.How can I place an order for SAC7.0-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for SAC7.0-E3/54 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 SAC7.0-E3/54 reliable?
The price and inventory of SAC7.0-E3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SAC7.0-E3/54 is usually 5 days.
3.What payment methods are accepted for SAC7.0-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SAC7.0-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SAC7.0-E3/54?
SAC7.0-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SAC7.0-E3/54 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 SAC7.0-E3/54?
For technical support, including SAC7.0-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SAC7.0-E3/54 requirements.
6.How does Aetrix verify that SAC7.0-E3/54 is sourced from the original manufacturer or authorized distributors?
All SAC7.0-E3/54 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 SAC7.0-E3/54 meets industry standards.
7.What is the process for return or replacement of SAC7.0-E3/54?
All SAC7.0-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with SAC7.0-E3/54, 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 SAC7.0-E3/54 part is unused and in its original packaging.
Return procedure for SAC7.0-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SAC7.0-E3/54 Tags
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