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Vishay General Semiconductor - Diodes Division SMA5J7.5C-E3/5A
- Part No.:
- SMA5J7.5C-E3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J7.5C-E3/5A.pdf
- Description:
- TVS DIODE 7.5VWM 14.3VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,772
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Product details
Overview
SMA5J7.5C-E3/5A from Vishay General Semiconductor is a bi-directional transient voltage suppressor (TVS) diode in DO-214AC (SMA) package, designed for robust overvoltage protection on signal and power lines. It features a 7.5 V stand-off voltage (VWM), 8.33–9.21 V breakdown voltage (VBR at 1.0 mA), 12.9 V clamping voltage (VC) at 38.8 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 SMA5J7.5C-E3/5A datasheet, SMA5J7.5C-E3/5A pinout, SMA5J7.5C-E3/5A application, or SMA5J7.5C-E3/5A equivalent, key selection criteria include bi-directional clamping capability, AEC-Q101 qualification, RoHS-compliant matte tin plating, MSL Level 1 moisture sensitivity, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This bi-directional TVS diode operates symmetrically across both polarities, enabling suppression of positive and negative transients without polarity constraints. Its glass-passivated junction ensures stable breakdown characteristics and low incremental surge resistance, while the DO-214AC package delivers high power density with thermal resistance RθJA = 80 °C/W and RθJL = 25 °C/W.
The device meets AEC-Q101 stress test requirements for automotive applications and is rated for continuous operation from –55 °C to +150 °C junction temperature. It exhibits <1 μA maximum reverse leakage at VWM, fast response time (<1 ns), and clamps reliably under 10/1000 µs surge conditions up to 500 W - validated per ANSI/IEEE C62.35 standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 7.5 V - maximum continuous reverse operating voltage before conduction begins |
| VBR (min/max) | 8.33 V / 9.21 V at 1.0 mA - guaranteed breakdown range defining turn-on threshold tolerance |
| VC @ IPPM | 12.9 V at 38.8 A - clamped voltage during 500 W transient, limiting downstream stress |
| PPPM | 500 W - peak pulse power handling with 10/1000 µs waveform, critical for ISO 7637-2 pulse 5a/b immunity |
| TJ Range | –55 °C to +150 °C - qualified operating and storage range supporting under-hood automotive use |
| MSL Level | Level 1 per J-STD-020 - no floor life limitation; safe for standard reflow without dry pack |
| AEC-Q101 | Qualified - passed stress tests including HTGB, HTRB, TCT, and ESD per automotive reliability standard |
Pinout & Package
DO-214AC (SMA) surface-mount package: molded epoxy case meeting UL 94 V-0 flammability rating; matte tin-plated leads solderable per J-STD-020 and JESD 22-B102; no polarity marking (bi-directional configuration).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bi-directional transient conduction path | No functional polarity - either terminal serves as anode or cathode depending on transient polarity |
| Case (body) | Non-electrical mechanical interface | Thermally conductive but electrically isolated housing; requires no grounding connection |
Key Features
| Feature | Design Value |
|---|---|
| Bi-directional clamping | Enables single-device protection against both positive and negative transients - eliminates need for dual-diode configurations |
| Glass-passivated junction | Ensures stable VBR tolerance and long-term reliability under repeated surge stress |
| AEC-Q101 qualification | Validates suitability for automotive powertrain, body electronics, and ADAS sensor protection |
| Low-profile DO-214AC package | 0.208" × 0.157" footprint supports high-density PCB layouts and automated pick-and-place |
| RoHS-compliant E3 suffix | Meets JESD 201 Class 1A whisker resistance - suitable for lead-free reflow and long-life industrial deployments |
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 switching spikes in vehicle ECUs. IC Role / Device Role / Timing Role: Bi-directional voltage clamp placed directly at connector or IC input pins to shunt transients before they reach sensitive circuitry. Use Value: Limits induced voltage to ≤12.9 V during 38.8 A surges, preserving signal integrity and preventing latch-up in 3.3 V/5 V microcontrollers and ADC front-ends. | Use Scenario: Safeguarding digital and analog inputs/outputs of programmable logic controllers exposed to relay coil kickback and motor drive noise in factory automation. IC Role / Device Role / Timing Role: Standoff-rated TVS placed across terminals to absorb repetitive 500 W surges without degradation over >100,000 cycles. Use Value: Maintains system uptime by preventing field-replaceable module failure due to ESD or switching transients in harsh 24 V DC environments. |
| Telecom Line Interface | Consumer Power Adapter Input |
Use Scenario: Shielding Ethernet PHYs, RS-485 transceivers, and PoE injectors from lightning-induced surges and AC coupling faults in outdoor telecom equipment. IC Role / Device Role / Timing Role: First-line transient suppressor on line-side traces, coordinated with GDT or MOV secondary protection stages. Use Value: Fast sub-nanosecond response captures early surge energy before it propagates, reducing required coordination margin and board space. | Use Scenario: Overvoltage protection on primary-side rectifier outputs and secondary-side DC rails in wall adapters and USB PD chargers subject to mains overvoltage events. IC Role / Device Role / Timing Role: Secondary-stage TVS after bulk capacitor, clamping residual spikes that bypass upstream MOVs or fuses. Use Value: Prevents catastrophic failure of downstream DC-DC converters and USB controller ICs during 10/1000 µs line surges up to 500 W. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J7.5CA-E3/5A | Same electrical specs and package; CA suffix explicitly denotes bi-directional version (SMA5J7.5C-E3/5A is functionally identical per Vishay documentation) | No functional difference - both intended for bi-directional use; CA is standardized suffix per Vishay naming convention | Select SMA5J7.5CA-E3/5A if strict compliance with Vishay's official bi-directional part numbering is required for BOM alignment |
| SMCJ7.5CA | Higher 1500 W PPPM, larger DO-214AB (SMC) package, same VWM/VC ratings | Better suited for higher-energy transients (e.g., ISO 16750-2 pulse 5b); requires larger PCB area and different pad layout | Choose SMCJ7.5CA only when surge energy exceeds 500 W capability of SMA5J7.5C-E3/5A and board space permits larger footprint |
Compared with SMA5J7.5CA-E3/5A (identical function, naming variant) and SMCJ7.5CA (higher-power, larger package), the SMA5J7.5C-E3/5A offers optimal balance of 500 W surge handling, AEC-Q101 qualification, and compact DO-214AC packaging for space-constrained automotive and industrial edge nodes.
Availability
SMA5J7.5C-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, AEC-Q101 validation, and RoHS-compliant SMT assembly.
Supply support for SMA5J7.5C-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 specifically for high-power-density transient suppression in space-constrained, high-reliability applications - targeting automotive, industrial, and telecom systems where robustness against ISO 7637-2 and IEC 61000-4-5 threats is mandatory.
FAQ
What is the polarity configuration of the SMA5J7.5C-E3/5A?
The SMA5J7.5C-E3/5A is a bi-directional TVS diode with symmetrical conduction behavior - neither terminal is marked, and either end functions as anode or cathode depending on transient polarity. This eliminates orientation concerns during PCB layout and automated placement, unlike uni-directional variants which require cathode band alignment.
Does the SMA5J7.5C-E3/5A meet automotive qualification standards?
Yes, the SMA5J7.5C-E3/5A is AEC-Q101 qualified, having passed stress tests including high-temperature reverse bias (HTRB), high-temperature gate bias (HTGB), temperature cycling (TCT), and ESD per JESD22-A114. This certification confirms its suitability for automotive powertrain, body control, and ADAS sensor protection applications.
What is the maximum clamping voltage of the SMA5J7.5C-E3/5A under surge conditions?
The SMA5J7.5C-E3/5A clamps to a maximum of 12.9 V when subjected to its rated peak pulse current of 38.8 A (10/1000 µs waveform). This clamping voltage is measured across the device terminals and defines the upper voltage limit imposed on protected circuitry during transient events.
Is the SMA5J7.5C-E3/5A compatible with lead-free reflow processes?
Yes, the SMA5J7.5C-E3/5A uses matte tin-plated leads compliant with J-STD-002 and JESD 22-B102, and its DO-214AC package is rated for MSL Level 1 per J-STD-020 with a maximum peak reflow temperature of 260 °C - fully compatible with standard lead-free soldering profiles.
How does the SMA5J7.5C-E3/5A differ from the SMA5J7.5A variant?
The SMA5J7.5C-E3/5A is bi-directional, whereas SMA5J7.5A is uni-directional. The "C" suffix indicates symmetrical clamping for both polarities; SMA5J7.5A has a cathode band and conducts only in reverse bias. Their VWM, VBR, and VC values differ accordingly - SMA5J7.5A has VWM = 7.5 V but is not rated for forward transient suppression.
SMA5J7.5C-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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 7.5V
- Voltage - Breakdown (Min):
- 8.33V
- Voltage - Clamping (Max) @ Ipp:
- 14.3V
- Current - Peak Pulse (10/1000µs):
- 35A
- 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)
SMA5J7.5C-E3/5A FAQ
1.How can I place an order for SMA5J7.5C-E3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J7.5C-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 SMA5J7.5C-E3/5A reliable?
The price and inventory of SMA5J7.5C-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 SMA5J7.5C-E3/5A is usually 5 days.
3.What payment methods are accepted for SMA5J7.5C-E3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J7.5C-E3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J7.5C-E3/5A?
SMA5J7.5C-E3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J7.5C-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 SMA5J7.5C-E3/5A?
For technical support, including SMA5J7.5C-E3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J7.5C-E3/5A requirements.
6.How does Aetrix verify that SMA5J7.5C-E3/5A is sourced from the original manufacturer or authorized distributors?
All SMA5J7.5C-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 SMA5J7.5C-E3/5A meets industry standards.
7.What is the process for return or replacement of SMA5J7.5C-E3/5A?
All SMA5J7.5C-E3/5A units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J7.5C-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 SMA5J7.5C-E3/5A part is unused and in its original packaging.
Return procedure for SMA5J7.5C-E3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA5J7.5C-E3/5A Tags
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