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Vishay General Semiconductor - Diodes Division SMA6J6.5A-E3/61
- Part No.:
- SMA6J6.5A-E3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA6J6.5A-E3/61.pdf
- Description:
- TVS DIODE 6.5VWM 14.5VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,703
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Product details
Overview
SMA6J6.5A-E3/61 from Vishay General Semiconductor is a unidirectional surface-mount TransZORB® transient voltage suppressor in SMA (DO-214AC) package, with 6.5 V stand-off voltage (VWM), 7.2–7.96 V breakdown voltage (VBR at 10 mA), and 10.2 V maximum clamping voltage (VC) at 58.8 A peak pulse current (IPP) under 10/1000 µs waveform - designed to protect MOSFETs, ICs, and sensor signal lines against inductive switching transients in industrial and telecom power rails.
For engineers reviewing the SMA6J6.5A-E3/61 datasheet, SMA6J6.5A-E3/61 pinout, SMA6J6.5A-E3/61 application, or SMA6J6.5A-E3/61 equivalent, key selection criteria include clamping performance at 58.8 A IPP, unidirectional polarity, 600 W peak pulse power (10/1000 µs), RoHS-compliant matte tin terminals, and MSL Level 1 moisture sensitivity rating for reflow compatibility.
Technical Context
This device operates as a silicon avalanche diode optimized for fast response (<1 ns) to transient overvoltages, leveraging controlled avalanche breakdown to clamp voltage spikes before downstream components are damaged. Its dynamic resistance (RD = 0.038 Ω) and low thermal resistance (RθJA = 120 °C/W) enable stable clamping across temperature and repeated surge events.
The SMA6J6.5A-E3/61 is rated for -55 °C to +150 °C junction operation, with 4 W power dissipation at TA = 50 °C and 50 A non-repetitive forward surge capability (IFSM, 8.3 ms half-sine). It meets J-STD-020 MSL Level 1 and is qualified for industrial-grade reliability with JESD201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.5 V - maximum continuous reverse operating voltage before leakage exceeds 100 µA; sets upper limit for normal circuit bias without conduction. |
| VBR (min/max) | 7.2 V / 7.96 V at IT = 10 mA - guaranteed avalanche onset range; ensures predictable turn-on during transients. |
| VC at IPP | 10.2 V at 58.8 A (10/1000 µs) - clamped voltage seen by protected circuit during worst-case surge; defines protection margin. |
| PPPM (10/1000 µs) | 600 W - peak transient energy absorption capacity under standard lightning/surge waveform; determines survivability of common surges. |
| ID at VWM | 100 µA max - reverse leakage at stand-off voltage; critical for low-power sensor or battery-backed circuits. |
| Package | SMA (DO-214AC) - surface-mount outline with 5.28 mm x 2.79 mm footprint and cathode band marking; compatible with automated pick-and-place. |
| TJ max. | +150 °C - maximum junction temperature; enables use in high-ambient industrial environments with adequate PCB copper thermal relief. |
Pinout & Package
SMA6J6.5A-E3/61 uses the SMA (DO-214AC) package: molded plastic case with matte tin-plated leads, cathode identified by a color band. Mounting requires 5.0 mm × 5.0 mm copper pads per terminal per datasheet recommendation for thermal and surge performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction or transient clamping | Connected to protected line's lower-potential side (e.g., ground return path); must be routed with low-inductance trace for effective clamping. |
| Cathode | Current exit point during clamping; marked by color band | Connected to the line being protected (e.g., 6.5 V rail); clamping occurs when cathode-to-anode voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| Unidirectional polarity | Enables precise clamping only on positive transients relative to ground - ideal for DC power rail protection where reverse voltage is not expected. |
| MSL Level 1 rating | Allows unlimited floor life and single reflow at 260 °C peak - eliminates baking requirements and simplifies SMT manufacturing flow. |
| Low dynamic resistance (RD) | 0.038 Ω - minimizes voltage overshoot during high-di/dt events, improving clamping accuracy and reducing stress on downstream FETs or ICs. |
| Junction-to-lead thermal resistance | 25 °C/W - supports efficient heat transfer to PCB copper, enabling sustained 4 W dissipation at TA = 50 °C with minimal pad area. |
| RoHS-compliant & whisker-resistant | E3 suffix confirms compliance with RoHS Directive 2011/65/EU and JESD201 Class 2 tin whisker mitigation - suitable for long-life industrial deployments. |
Applications
| Industrial Motor Drive Protection | Telecom Power Supply Input |
|---|---|
|
Use Scenario: Suppresses voltage spikes generated by relay coil de-energization or IGBT switching in 24 V DC motor control modules. IC Role / Device Role / Timing Role: Transient voltage suppressor placed across DC bus input to limit surge-induced overvoltage before it reaches gate drivers and microcontrollers. Use Value: Clamps 58.8 A surges to ≤10.2 V, preventing latch-up or permanent damage to 3.3 V/5 V logic interfaces tied to the same rail. |
Use Scenario: Protects primary-side DC-DC converter inputs in telecom base station power supplies exposed to lightning-induced surges on -48 V distribution lines. IC Role / Device Role / Timing Role: Unidirectional TVS connected between -48 V rail and chassis ground to shunt fast-rising transients while maintaining steady-state bias. Use Value: Withstands 600 W (10/1000 µs) pulses and maintains <100 µA leakage at -48 V, ensuring no impact on standby power budget. |
| Automotive Body Control Module (BCM) | Consumer Sensor Signal Line Protection |
|
Use Scenario: Shields LIN bus transceivers and microcontroller I/O pins in BCMs from load dump and ISO 7637-2 pulse 1/2a transients. IC Role / Device Role / Timing Role: Standoff-rated TVS on 12 V supply rail feeding LIN interface ICs; activated only during overvoltage events >7.2 V. Use Value: Breakdown tolerance (7.2–7.96 V) aligns with automotive 12 V nominal systems, allowing reliable operation during cold-crank (6.5 V min) and load dump (up to 35 V). |
Use Scenario: Guards analog output lines of MEMS pressure sensors in smart home HVAC units against ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance TVS (CJ ≈ 1000 pF at VWM) placed directly at sensor connector to absorb ±8 kV contact ESD per IEC 61000-4-2. Use Value: 10.2 V clamping ensures sensor output stays within ADC input range (0–3.3 V) even during 58.8 A surge, preserving measurement integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA6J6.0A-E3/61 | Lower VWM (6.0 V), VBR (6.7–7.41 V), and VC (9.5 V at 63.2 A); identical package and power rating. | Better suited for 5 V logic rails where tighter clamping margin below 10 V is required. | Select when protecting 5 V systems with stricter clamping voltage limits; verify VBR min ≥ system max operating voltage. |
| SMA6J7.5A-E3/61 | Higher VWM (7.5 V), VBR (8.33–9.21 V), and VC (11.8 V at 50.8 A); same SMA package and 600 W rating. | Preferred for 9–12 V intermediate rails where higher standoff avoids false triggering during ripple or startup overshoot. | Choose for 9 V or 12 V supply lines needing wider margin above nominal voltage; ensures immunity to 10 % line variation without leakage increase. |
Compared with SMA6J6.0A-E3/61 and SMA6J7.5A-E3/61, the SMA6J6.5A-E3/61 provides optimal balance for 6.5 V nominal systems - its 6.5 V VWM avoids nuisance conduction during 5 % ripple while delivering 10.2 V clamping that protects 3.3 V/5 V logic interfaces downstream.
Availability
SMA6J6.5A-E3/61 is available at Aetrix Electronics and suitable for industrial motor drives, telecom power supplies, automotive body control modules, and consumer sensor interfaces requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMA6J6.5A-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, TVS devices, and optoelectronics with emphasis on reliability, efficiency, and industrial-grade qualification.
The SMA6J6.5A-E3/61 belongs to Vishay's TransZORB® family of transient voltage suppressors, engineered specifically for robust, low-inductance surge protection in harsh electromagnetic environments across automotive, industrial, and telecom infrastructure.
FAQ
What is the maximum clamping voltage of the SMA6J6.5A-E3/61 under a 10/1000 µs surge?
The SMA6J6.5A-E3/61 has a maximum clamping voltage (VC) of 10.2 V when subjected to a 58.8 A peak pulse current with a 10/1000 µs waveform. This value is measured at TA = 25 °C and reflects the actual voltage imposed on the protected circuit during standardized surge testing - critical for verifying compatibility with downstream IC voltage tolerances.
Does the SMA6J6.5A-E3/61 support automated SMT assembly?
Yes, the SMA6J6.5A-E3/61 is designed for automated placement with its low-profile SMA (DO-214AC) package, MSL Level 1 rating, and matte tin-plated leads compliant with J-STD-002 and JESD22-B102 solderability standards. It withstands peak reflow temperatures up to 260 °C without preconditioning.
Is the SMA6J6.5A-E3/61 unidirectional or bidirectional?
The SMA6J6.5A-E3/61 is unidirectional, as confirmed in the Vishay datasheet under FEATURES and ELECTRICAL CHARACTERISTICS. It conducts only during positive voltage transients relative to its cathode and is not rated for reverse surge suppression - polarity must be observed during PCB layout.
What is the junction-to-ambient thermal resistance (RθJA) of the SMA6J6.5A-E3/61?
The typical junction-to-ambient thermal resistance (RθJA) of the SMA6J6.5A-E3/61 is 120 °C/W, measured on a standard PCB with 5.0 mm × 5.0 mm copper pads per terminal. This value assumes natural convection and guides thermal design for continuous 4 W power dissipation at TA = 50 °C.
How does the SMA6J6.5A-E3/61 differ from the SMA6J6.5CA variant?
The SMA6J6.5A-E3/61 is unidirectional, whereas SMA6J6.5CA is bidirectional - meaning the latter clamps both positive and negative transients. The "A" suffix denotes unidirectional configuration; "CA" indicates bidirectional. They share identical VWM, VBR, and package but differ in polarity and clamping symmetry.
SMA6J6.5A-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):
- 6.5V
- Voltage - Breakdown (Min):
- 7.2V
- Voltage - Clamping (Max) @ Ipp:
- 14.5V
- Current - Peak Pulse (10/1000µs):
- 276A (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)
SMA6J6.5A-E3/61 FAQ
1.How can I place an order for SMA6J6.5A-E3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA6J6.5A-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 SMA6J6.5A-E3/61 reliable?
The price and inventory of SMA6J6.5A-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 SMA6J6.5A-E3/61 is usually 5 days.
3.What payment methods are accepted for SMA6J6.5A-E3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA6J6.5A-E3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA6J6.5A-E3/61?
SMA6J6.5A-E3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA6J6.5A-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 SMA6J6.5A-E3/61?
For technical support, including SMA6J6.5A-E3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA6J6.5A-E3/61 requirements.
6.How does Aetrix verify that SMA6J6.5A-E3/61 is sourced from the original manufacturer or authorized distributors?
All SMA6J6.5A-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 SMA6J6.5A-E3/61 meets industry standards.
7.What is the process for return or replacement of SMA6J6.5A-E3/61?
All SMA6J6.5A-E3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMA6J6.5A-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 SMA6J6.5A-E3/61 part is unused and in its original packaging.
Return procedure for SMA6J6.5A-E3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA6J6.5A-E3/61 Tags
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