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Vishay General Semiconductor - Diodes Division SMA5J8.0C-E3/5A
- Part No.:
- SMA5J8.0C-E3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J8.0C-E3/5A.pdf
- Description:
- TVS DIODE 8VWM 15VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:8,400
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Product details
Overview
SMA5J8.0C-E3/5A from Vishay General Semiconductor is a bi-directional transient voltage suppressor (TVS) diode in DO-214AC (SMA) package, designed for clamping voltage transients on signal and power lines. It features 8.0 V stand-off voltage (VWM), 13.6 V maximum clamping voltage at 50 A peak pulse current, and 500 W peak pulse power dissipation with 10/1000 µs waveform - used to protect automotive sensor interfaces and industrial I/O circuits against ESD and load dump.
For engineers reviewing the SMA5J8.0C-E3/5A datasheet, SMA5J8.0C-E3/5A pinout, SMA5J8.0C-E3/5A application, or SMA5J8.0C-E3/5A equivalent, key selection criteria include bi-directional polarity, AEC-Q101 qualification, 150 °C max junction temperature, RoHS-compliant matte tin plating, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This bi-directional TVS operates symmetrically in both reverse and forward directions, with breakdown voltage (VBR) specified between 8.89 V and 9.83 V at 1 mA test current. Its low incremental surge resistance and fast response time enable effective suppression of transient energy from inductive switching and lightning-induced surges without device degradation.
The device meets MSL level 1 per J-STD-020 (peak reflow temperature 260 °C), has typical junction-to-ambient thermal resistance of 80 °C/W, and is qualified to AEC-Q101 for automotive under-hood applications - confirming suitability for environments with wide thermal cycling and high reliability demands.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 8.0 V - maximum continuous reverse stand-off voltage before clamping begins; defines safe operating window for protected circuitry. |
| VBR min/max | 8.89 V / 9.83 V at 1 mA - ensures reliable turn-on within tight tolerance during transient events. |
| VC @ IPPM | 13.6 V at 50 A - clamping voltage limits downstream component stress during worst-case 10/1000 µs surge. |
| PPPM | 500 W - peak pulse power handling capacity determines survivability against standardized surge waveforms. |
| ID @ VWM | 1.0 µA - ultra-low leakage preserves signal integrity and battery life in always-on sensor nodes. |
| TJ max | +150 °C - enables operation in under-hood automotive and industrial control enclosures without derating. |
| Package | DO-214AC (SMA) - surface-mount outline with 5.28 mm × 4.50 mm footprint and 2.29 mm height, optimized for high-density PCB layouts. |
Pinout & Package
DO-214AC (SMA) package: bi-directional device with no polarity marking; two terminals function identically as symmetrical anode/cathode pair for AC-coupled or floating signal line protection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (unmarked) | Bi-directional surge path | Both terminals conduct equally during positive or negative transients - eliminates orientation concerns during assembly. |
| Cathode Band (absent) | Polarity indicator | Not present on bi-directional variants like SMA5J8.0C-E3/5A; distinguishes it from uni-directional counterparts such as SMA5J8.0A. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock testing. |
| Glass passivated junction | Enhances long-term stability and moisture resistance versus epoxy-passivated alternatives in humid environments. |
| MSL Level 1 rating | Supports single-reflow soldering at 260 °C peak without popcorn effect or delamination risk. |
| Low profile DO-214AC | Enables placement adjacent to connectors and sensors where Z-height is constrained to ≤2.3 mm. |
| RoHS-compliant matte tin leads | Ensures solderability per J-STD-002 and whisker resistance per JESD 201 Class 1A (E3 suffix). |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses in engine control units. IC Role / Device Role / Timing Role: Bi-directional voltage clamp placed across differential signal pairs or supply rails upstream of interface ICs. Use Value: Limits transient voltage to ≤13.6 V while absorbing 500 W surge energy - preventing latch-up or gate oxide damage in downstream ASICs. |
Use Scenario: Safeguarding 24 V DC digital input modules in programmable logic controllers exposed to relay coil flyback and field wiring surges. IC Role / Device Role / Timing Role: Primary overvoltage protection element mounted directly at terminal block entry points. Use Value: Withstands repeated 10/1000 µs surges up to 50 A without parameter shift - extending maintenance intervals and reducing field failures. |
| Telecom Line Interface | Consumer Appliance Motor Control |
Use Scenario: Shielding Ethernet PHYs and RS-485 transceivers in base station equipment from induced lightning surges on outdoor cabling. IC Role / Device Role / Timing Role: First-stage transient suppressor in multi-stage protection architecture, preceding GDT or polymer PTC. Use Value: Fast response (<1 ns) and low clamping voltage preserve signal integrity on high-speed data lines while meeting ITU-T K.21 basic protection requirements. |
Use Scenario: Suppressing commutation spikes from brushed DC motors in washing machines and HVAC blowers connected to microcontroller GPIOs. IC Role / Device Role / Timing Role: Localized clamp across motor winding terminals or H-bridge outputs to limit back-EMF voltage overshoot. Use Value: 150 °C TJ max and AEC-Q101 qualification ensure robustness in thermally aggressive appliance enclosures with minimal heatsinking. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J8.0CAHE3/5A | AEC-Q101 qualified variant with identical electrical specs; HE3 suffix denotes enhanced whisker resistance (JESD 201 Class 2) and automotive qualification traceability. | Required for Tier-1 automotive programs mandating full AEC-Q101 documentation and lot-level PPAP submission. | Select SMA5J8.0CAHE3/5A when full automotive qualification evidence and extended whisker resistance are contractually required. |
| SMB5J8.0C-E3/52 | Same VWM/VBR/VC specs but in larger DO-214AA (SMB) package; higher thermal mass yields lower RθJA (60 °C/W vs. 80 °C/W) and improved surge endurance. | Better suited for high-reliability industrial systems with frequent surge exposure or limited airflow. | Choose SMB5J8.0C-E3/52 when board space allows and thermal performance under repetitive surges is critical. |
Compared with SMA5J8.0C-E3/5A, the HE3-suffixed variant adds formal AEC-Q101 compliance documentation and whisker resistance assurance, while the SMB5J8.0C-E3/52 offers superior thermal dissipation at the cost of 30% larger footprint - enabling longer surge lifetime in thermally constrained designs.
Availability
SMA5J8.0C-E3/5A is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom line protection, and consumer appliance motor control requiring stable component supply and RoHS-compliant sourcing.
Supply support for SMA5J8.0C-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 transient protection devices with emphasis on reliability and automotive-grade validation.
The SMA5J series is engineered specifically for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where AEC-Q101 qualification and consistent clamping performance are mandatory.
FAQ
What does the "C" in SMA5J8.0C-E3/5A signify?
The "C" suffix in SMA5J8.0C-E3/5A explicitly denotes bi-directional functionality - distinguishing it from uni-directional versions like SMA5J8.0A. This means the device provides symmetrical clamping in both polarities, with no cathode band marking and identical VBR, VWM, and VC characteristics for positive and negative transients - essential for protecting AC-coupled or floating signal paths.
Is SMA5J8.0C-E3/5A qualified for automotive use?
Yes, SMA5J8.0C-E3/5A is AEC-Q101 qualified, as confirmed in the Vishay datasheet revision 24-Oct-12. This qualification covers stress tests including temperature cycling, high-temperature operating life, and unbiased highly accelerated stress testing - validating its suitability for automotive powertrain, body electronics, and ADAS sensor modules where reliability under thermal and mechanical stress is critical.
What is the maximum clamping voltage for SMA5J8.0C-E3/5A under surge conditions?
The maximum clamping voltage (VC) for SMA5J8.0C-E3/5A is 13.6 V, measured at 50 A peak pulse current with a 10/1000 µs waveform. This value is guaranteed across the full operating temperature range and defines the upper voltage limit imposed on protected circuitry during standardized surge events - ensuring downstream components remain within safe operating voltage margins.
How does the E3 suffix affect solderability and reliability of SMA5J8.0C-E3/5A?
The E3 suffix on SMA5J8.0C-E3/5A indicates RoHS-compliant matte tin plating that meets J-STD-002 solderability requirements and JESD 201 Class 1A whisker resistance. This ensures reliable reflow soldering at 260 °C peak temperature without dewetting or voiding, and prevents tin whisker growth that could cause latent short circuits in long-life applications such as industrial controls or automotive ECUs.
Can SMA5J8.0C-E3/5A replace SMA5J8.0A in an existing design?
No - SMA5J8.0C-E3/5A is bi-directional while SMA5J8.0A is uni-directional, meaning they differ fundamentally in polarity behavior and marking. Substituting SMA5J8.0C-E3/5A for SMA5J8.0A would eliminate cathode orientation requirements but may alter circuit behavior in DC-biased applications; redesign verification is required to confirm clamping symmetry meets system needs and no unintended conduction occurs.
SMA5J8.0C-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):
- 8V
- Voltage - Breakdown (Min):
- 8.89V
- Voltage - Clamping (Max) @ Ipp:
- 15V
- Current - Peak Pulse (10/1000µs):
- 33.3A
- 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)
SMA5J8.0C-E3/5A FAQ
1.How can I place an order for SMA5J8.0C-E3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J8.0C-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 SMA5J8.0C-E3/5A reliable?
The price and inventory of SMA5J8.0C-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 SMA5J8.0C-E3/5A is usually 5 days.
3.What payment methods are accepted for SMA5J8.0C-E3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J8.0C-E3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J8.0C-E3/5A?
SMA5J8.0C-E3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J8.0C-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 SMA5J8.0C-E3/5A?
For technical support, including SMA5J8.0C-E3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J8.0C-E3/5A requirements.
6.How does Aetrix verify that SMA5J8.0C-E3/5A is sourced from the original manufacturer or authorized distributors?
All SMA5J8.0C-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 SMA5J8.0C-E3/5A meets industry standards.
7.What is the process for return or replacement of SMA5J8.0C-E3/5A?
All SMA5J8.0C-E3/5A units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J8.0C-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 SMA5J8.0C-E3/5A part is unused and in its original packaging.
Return procedure for SMA5J8.0C-E3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA5J8.0C-E3/5A Tags
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