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Vishay General Semiconductor - Diodes Division SMA6J8.0A-E3/61
- Part No.:
- SMA6J8.0A-E3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA6J8.0A-E3/61.pdf
- Description:
- TVS DIODE 8VWM 18.2VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:2,280
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Product details
Overview
SMA6J8.0A-E3/61 from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMA (DO-214AC) package, designed for clamping voltage transients on power and signal lines. It features a 8.0 V stand-off voltage (VWM), 8.89–9.83 V breakdown voltage (VBR at IT = 10 mA), 12.5 V maximum clamping voltage (VC) at 48.0 A peak pulse current (IPP, 10/1000 μs), and 600 W peak pulse power dissipation. It protects MOSFETs, ICs, and sensor signal lines in industrial and telecom equipment against inductive switching surges.
For engineers reviewing the SMA6J8.0A-E3/61 datasheet, SMA6J8.0A-E3/61 pinout, SMA6J8.0A-E3/61 application, or SMA6J8.0A-E3/61 equivalent, key selection criteria include unidirectional polarity, 12.5 V clamping at 48 A, SMA package thermal resistance (RθJA = 120 °C/W), 150 °C max junction temperature, and compliance with J-STD-020 MSL level 1.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: under normal bias it presents high impedance (<1 μA leakage at 8.0 V), then rapidly avalanches when reverse voltage exceeds VBR to limit transient energy. Its dynamic resistance (RD = 0.056 Ω) ensures low clamping overshoot during fast 10/1000 μs surges.
Designed for PCB-level surge immunity, it requires 5.0 mm × 5.0 mm copper pads per terminal for rated 600 W power handling and meets UL 94 V-0 flammability. The cathode band denotes polarity, and matte tin-plated leads comply with J-STD-002 solderability and JESD 201 class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 8.0 V - Maximum continuous reverse operating voltage before significant leakage; sets upper limit for protected circuit DC rail. |
| VBR (min/max) | 8.89 V / 9.83 V at 10 mA - Confirmed avalanche onset range; defines minimum overvoltage threshold for clamping activation. |
| VC @ IPP | 12.5 V at 48.0 A (10/1000 μs) - Measured clamping voltage under standard surge; determines worst-case voltage seen by downstream ICs. |
| PPPM | 600 W (10/1000 μs) - Peak transient energy absorption capability; defines single-event surge robustness on power rails. |
| IFSM | 50 A - Non-repetitive forward surge rating; supports inrush current tolerance during system startup or fault recovery. |
| TJ max | +150 °C - Maximum junction temperature; enables operation in high-ambient industrial environments with proper PCB thermal design. |
| RθJA | 120 °C/W - Thermal resistance junction-to-ambient on standard pad layout; informs derating above 25 °C ambient. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, unidirectional polarity with cathode band marking. Dimensions: 4.50 mm × 2.79 mm × 2.20 mm (L × W × H); weight 0.064 g; RoHS-compliant, industrial grade, MSL level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction or surge shunting | Connected to protected line (e.g., VIN or signal) when used in unidirectional configuration; must be routed with low-inductance trace. |
| Cathode | Current exit point during avalanche clamping | Connected to ground or lower-potential reference; requires solid thermal pad connection to dissipate 600 W surge energy. |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile SMA package | Enables automated SMT placement and fits space-constrained PCB layouts without height interference. |
| Clamping voltage ≤12.5 V at 48 A | Ensures downstream 3.3 V or 5 V logic ICs remain within absolute maximum ratings during 10/1000 μs transients. |
| MSL level 1 (260 °C peak) | Eliminates pre-bake requirement before reflow, reducing manufacturing complexity and moisture-related defects. |
| UL 94 V-0 molding compound | Provides flame-retardant housing essential for industrial and telecom equipment safety certifications. |
| Matte tin plating, J-STD-002 compliant | Guarantees reliable solder joint formation and long-term intermetallic stability under thermal cycling. |
Applications
| Industrial Motor Drives | Telecom Power Supplies |
|---|---|
|
Use Scenario: Protecting gate drivers and microcontrollers from voltage spikes caused by relay coil de-energization or IGBT switching noise. IC Role / Device Role: Unidirectional shunt clamp placed across DC bus or control signal lines. Use Value: Limits transient voltage to ≤12.5 V, preventing latch-up or oxide damage in 5 V logic interfaces and enabling reliable operation at 85 °C ambient. |
Use Scenario: Safeguarding 48 V input stages of PoE injectors and base station power modules against lightning-induced surges. IC Role / Device Role: Primary overvoltage protection element on secondary-side DC outputs and data line inputs. Use Value: Absorbs 600 W (10/1000 μs) without failure, maintaining system uptime in outdoor telecom cabinets per IEC 61000-4-5 Level 3. |
| Automotive Body Control Modules | Consumer Sensor Interfaces |
|
Use Scenario: Shielding LIN bus transceivers and window motor controllers from load dump and alternator ripple events. IC Role / Device Role: Reverse-biased TVS connected between signal line and chassis ground. Use Value: Withstands 50 A IFSM and operates up to +150 °C junction temperature, meeting AEC-Q200 stress requirements for under-hood applications. |
Use Scenario: Suppressing ESD and cable discharge events on I²C/SPI lines connecting environmental sensors to MCU hosts. IC Role / Device Role: Point-of-entry protection on sensor PCBs with minimal capacitance impact. Use Value: Delivers 12.5 V clamping at 48 A while adding only 13.6 pF junction capacitance (typ.), preserving signal integrity up to 1 MHz. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA6J8.0A-M3/61 | Halogen-free variant; identical electrical specs, same SMA package and MSL level. | Required where halogen-free compliance is mandated (e.g., EU public infrastructure projects). | Select SMA6J8.0A-M3/61 when RoHS + halogen-free certification is contractually required; otherwise SMA6J8.0A-E3/61 suffices. |
| SMCJ8.0A-E3/57T | Higher power rating (1500 W PPPM), larger SMC (DO-214AB) package, same VWM/VBR range. | Suitable for higher-energy surges (e.g., AC mains input protection) where board space allows larger footprint. | Choose SMCJ8.0A-E3/57T only if 600 W is insufficient and PCB layout accommodates 7.11 mm × 6.22 mm SMC package. |
Compared with SMA6J8.0A-E3/61, the M3 variant adds halogen-free compliance without performance trade-offs, while the SMCJ8.0A offers 2.5× higher surge capacity at the cost of 2.3× larger footprint-making SMA6J8.0A-E3/61 optimal for compact, cost-sensitive 600 W-class protection.
Availability
SMA6J8.0A-E3/61 is available at Aetrix Electronics and suitable for industrial motor drives, telecom power supplies, and automotive body control modules requiring stable component supply, consistent lead-time visibility, and full traceability from wafer to shipment.
Supply support for SMA6J8.0A-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 reliability, thermal performance, and application-specific optimization.
The SMA6J series is part of Vishay's Transient Voltage Suppressor portfolio, engineered for robust, low-clamping overvoltage protection in space-constrained surface-mount applications across industrial, telecom, and automotive sectors.
FAQ
What is the maximum clamping voltage of the SMA6J8.0A-E3/61 under a 10/1000 μs surge?
The SMA6J8.0A-E3/61 has a maximum clamping voltage (VC) of 12.5 V at 48.0 A peak pulse current with a 10/1000 μs waveform. This value is measured per the standard test condition defined in the Vishay datasheet document 89460 and reflects worst-case voltage limiting during typical inductive switching transients. The SMA6J8.0A-E3/61 maintains this clamping performance across its specified operating temperature range.
Does the SMA6J8.0A-E3/61 support bidirectional transient suppression?
No, the SMA6J8.0A-E3/61 is a unidirectional TVS diode, as explicitly stated in the Vishay datasheet features section. It conducts only in reverse avalanche mode and must be installed with correct polarity-cathode toward the protected line's higher potential. For bidirectional protection, a separate device such as the SMBJ8.0CA or a dual-diode array would be required. The SMA6J8.0A-E3/61 does not provide symmetrical clamping in both directions.
What is the thermal resistance and recommended pad layout for the SMA6J8.0A-E3/61?
The SMA6J8.0A-E3/61 has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W when mounted on 5.0 mm × 5.0 mm copper pads per terminal, as specified in the Vishay datasheet. This pad size is mandatory to achieve rated 600 W peak pulse power dissipation. Reducing pad area increases thermal impedance and requires derating per Figure 2 in document 89460. The SMA6J8.0A-E3/61 must not be operated beyond its 150 °C maximum junction temperature.
Is the SMA6J8.0A-E3/61 compliant with lead-free reflow standards?
Yes, the SMA6J8.0A-E3/61 is RoHS-compliant and qualified to MSL level 1 per J-STD-020, with a maximum lead-free reflow peak temperature of 260 °C. Its matte tin-plated leads meet J-STD-002 solderability requirements, and the device undergoes JESD 201 class 2 whisker testing. No pre-baking is required prior to reflow, making the SMA6J8.0A-E3/61 compatible with standard lead-free SMT assembly processes.
How does the breakdown voltage tolerance of the SMA6J8.0A-E3/61 affect circuit design?
The SMA6J8.0A-E3/61 has a guaranteed breakdown voltage (VBR) range of 8.89 V to 9.83 V at 10 mA, providing a ±5.5% tolerance around the nominal 8.0 V stand-off voltage. Designers must ensure that the protected circuit's maximum steady-state voltage remains below 8.0 V to avoid leakage current exceeding 1 μA, while allowing margin for VBR variation when sizing clamping headroom. This tolerance is fully characterized and reflected in the SMA6J8.0A-E3/61's published VC specification.
SMA6J8.0A-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):
- 8V
- Voltage - Breakdown (Min):
- 8.89V
- Voltage - Clamping (Max) @ Ipp:
- 18.2V
- Current - Peak Pulse (10/1000µs):
- 220A (8/20µs)
- Power - Peak Pulse:
- 4000W (4kW)
- 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)
SMA6J8.0A-E3/61 FAQ
1.How can I place an order for SMA6J8.0A-E3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA6J8.0A-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 SMA6J8.0A-E3/61 reliable?
The price and inventory of SMA6J8.0A-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 SMA6J8.0A-E3/61 is usually 5 days.
3.What payment methods are accepted for SMA6J8.0A-E3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA6J8.0A-E3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA6J8.0A-E3/61?
SMA6J8.0A-E3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA6J8.0A-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 SMA6J8.0A-E3/61?
For technical support, including SMA6J8.0A-E3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA6J8.0A-E3/61 requirements.
6.How does Aetrix verify that SMA6J8.0A-E3/61 is sourced from the original manufacturer or authorized distributors?
All SMA6J8.0A-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 SMA6J8.0A-E3/61 meets industry standards.
7.What is the process for return or replacement of SMA6J8.0A-E3/61?
All SMA6J8.0A-E3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMA6J8.0A-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 SMA6J8.0A-E3/61 part is unused and in its original packaging.
Return procedure for SMA6J8.0A-E3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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