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Vishay General Semiconductor - Diodes Division SMA6J26A-M3/61
- Part No.:
- SMA6J26A-M3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA6J26A-M3/61.pdf
- Description:
- TVS DIODE 26VWM 40.9VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:7,687
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Product details
Overview
SMA6J26A-M3/61 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 26 V stand-off voltage (VWM), 28.9–31.9 V breakdown voltage (VBR at IT = 1 mA), 40.9 V maximum clamping voltage (VC at IPP = 14.7 A, 10/1000 μs), 600 W peak pulse power (10/1000 μs), and operates from –55 °C to +150 °C. It protects MOSFETs and ICs in industrial power supplies.
For engineers reviewing the SMA6J26A-M3/61 datasheet, SMA6J26A-M3/61 pinout, SMA6J26A-M3/61 application, or SMA6J26A-M3/61 equivalent, key selection criteria include clamping voltage at rated surge current, unidirectional polarity, MSL Level 1 compliance, halogen-free RoHS status, and thermal resistance (RθJA = 120 °C/W) for PCB-level transient suppression design.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: when reverse voltage exceeds VBR, it avalanches to limit transient energy across protected circuit nodes. Its dynamic resistance (RD = 0.614 Ω) directly determines VC rise above VBR under surge conditions per VCLmax = RD × IPP + VBRmax.
Rated for 600 W (10/1000 μs) and 4000 W (8/20 μs) peak pulse power, it delivers robust protection against inductive switching spikes and lightning surges. The SMA (DO-214AC) package supports automated placement and meets UL 94 V-0 flammability with matte tin-plated leads compliant to J-STD-002 and JESD 22-B102.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 26 V - Maximum continuous reverse operating voltage before leakage exceeds 0.2 μA; defines safe DC/AC working margin. |
| VBR (min/max) | 28.9 V / 31.9 V at IT = 1 mA - Breakdown onset range; ensures reliable avalanche initiation without premature conduction. |
| VC @ IPP | 40.9 V at 14.7 A (10/1000 μs) - Clamped voltage seen by protected device during standard surge; critical for downstream IC survival. |
| PPPM (10/1000 μs) | 600 W - Peak transient energy absorption capability under standardized long-duration surge waveform. |
| RθJA | 120 °C/W - Junction-to-ambient thermal resistance on 5.0 mm × 5.0 mm copper pads; dictates derating above 25 °C ambient. |
| IFSM | 50 A - Non-repetitive forward surge rating (8.3 ms half-sine); supports inrush current handling in series-configured protection. |
| Polarity | Unidirectional - Cathode-banded device; blocks reverse voltage up to VWM, clamps only negative transients relative to anode. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, halogen-free, RoHS-compliant, MSL Level 1 (260 °C peak reflow). Cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference node for clamping action | Connected to protected line's low-side or ground return path; defines direction of transient current flow during avalanche. |
| Cathode | Clamping output terminal | Connected to protected IC/power rail; voltage at this node is limited to ≤40.9 V during 14.7 A surge (10/1000 μs). |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile SMA package | Enables high-density PCB layouts and compatibility with automated SMT assembly lines without height interference. |
| Halogen-free & RoHS-compliant (M3 suffix) | Meets environmental compliance requirements for industrial and consumer electronics without compromising surge performance. |
| MSL Level 1 moisture sensitivity | Eliminates bake-out requirement prior to reflow; supports direct placement into standard lead-free reflow profiles (peak 260 °C). |
| 120 °C/W thermal resistance (RθJA) | Enables predictable junction temperature rise under sustained power dissipation; informs pad layout and derating curves. |
| 0.614 Ω dynamic resistance (RD) | Minimizes clamping voltage overshoot beyond VBR; improves protection margin for 3.3 V/5 V logic interfaces. |
Applications
| Industrial Motor Drives | Telecom Power Supplies |
|---|---|
Use Scenario: Suppresses voltage spikes generated by relay coil de-energization and H-bridge switching in PLC I/O modules. IC Role / Device Role / Timing Role: Shunt clamping element placed across MOSFET drain-source or relay coil terminals. Use Value: Limits transient voltage to ≤40.9 V, preventing gate oxide rupture in 60 V-rated power MOSFETs and ensuring >100,000-cycle reliability. |
Use Scenario: Protects DC-DC converter inputs from lightning-induced surges on -48 V telecom distribution lines. IC Role / Device Role / Timing Role: Primary overvoltage clamp on input bus before upstream EMI filter and controller IC. Use Value: Absorbs 600 W (10/1000 μs) surges without degradation, maintaining system uptime in outdoor cabinet deployments. |
| Automotive Body Control Modules | Consumer Sensor Interfaces |
Use Scenario: Shields LIN bus transceivers and microcontroller GPIOs from load dump and jump-start transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between LIN line and ground, referenced to vehicle chassis. Use Value: Withstands 50 A IFSM and clamps to 40.9 V, meeting ISO 7637-2 Pulse 1/2a immunity requirements. |
Use Scenario: Guards analog outputs of temperature/humidity sensors connected to microcontroller ADC inputs. IC Role / Device Role / Timing Role: Low-capacitance (<100 pF) shunt protector on sensor signal line, grounded at MCU side. Use Value: Adds <0.2 μA leakage at 26 V, preserving sensor accuracy while suppressing ESD events per IEC 61000-4-2 Level 4. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA6J26A-E3/61 | Same electrical specs; RoHS-compliant but not halogen-free (E3 vs. M3 suffix); JESD 201 Class 2 whisker test passed. | Preferred where halogen content is unrestricted; identical MSL Level 1 and thermal performance. | Select SMA6J26A-E3/61 for cost-sensitive industrial designs without halogen restrictions. |
| SMB6J26A-M3 | Higher 600 W PPPM rating retained, but SMB (DO-214AA) package offers 1.5× larger pad area and lower RθJA (90 °C/W). | Better suited for high-reliability power rails requiring enhanced thermal margin or higher IPP headroom. | Choose SMB6J26A-M3 when board space allows larger footprint and thermal derating is critical. |
Compared with SMA6J26A-E3/61, the M3 suffix adds halogen-free compliance without electrical trade-offs; versus SMB6J26A-M3, the SMA package trades thermal performance for compactness-critical for space-constrained sensor nodes and dense power modules.
Availability
SMA6J26A-M3/61 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, halogen-free compliance, and MSL Level 1 reflow readiness.
Supply support for SMA6J26A-M3/61 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, efficiency, and application-specific optimization.
The SMA6JxxA family targets board-level transient suppression in space-constrained, high-volume applications-designed to replace older DO-15/DO-201 packages with superior surge handling per unit area and automated assembly compatibility.
FAQ
What is the maximum clamping voltage of the SMA6J26A-M3/61 under a 10/1000 μs surge?
The SMA6J26A-M3/61 has a maximum clamping voltage (VC) of 40.9 V when subjected to a 14.7 A peak pulse current with a 10/1000 μs waveform. This value is measured per JEDEC standards and reflects the actual voltage imposed on protected circuitry during standardized surge testing. The SMA6J26A-M3/61 maintains this clamping performance across its full operating temperature range.
Does the SMA6J26A-M3/61 support lead-free reflow soldering?
Yes, the SMA6J26A-M3/61 is qualified for lead-free reflow with MSL Level 1 rating per J-STD-020, supporting a maximum peak temperature of 260 °C. Its matte tin-plated leads comply with J-STD-002 and JESD 22-B102 solderability standards, and the M3 suffix confirms halogen-free, RoHS-compliant construction suitable for modern SMT lines.
How does the SMA6J26A-M3/61 differ from the SMA6J26A-E3/61?
The SMA6J26A-M3/61 and SMA6J26A-E3/61 share identical electrical specifications, package (SMA/DO-214AC), and MSL Level 1 rating. The sole difference is material composition: M3 denotes halogen-free epoxy molding compound, while E3 uses standard RoHS-compliant (but halogen-containing) material. Both pass JESD 201 Class 2 whisker testing.
What is the thermal resistance of the SMA6J26A-M3/61, and how does it affect layout?
The SMA6J26A-M3/61 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. This value requires PCB designers to allocate sufficient copper area and consider ambient temperature derating-especially above 25 °C-to maintain junction temperature below 150 °C during repeated surge events.
Can the SMA6J26A-M3/61 be used for bidirectional transient protection?
No, the SMA6J26A-M3/61 is unidirectional only, with cathode marked by a band. It clamps reverse voltage transients relative to its anode but conducts forward current like a standard diode. For bidirectional protection, a pair of SMA6J26A-M3/61 devices in series opposition or a dedicated bidirectional TVS (e.g., SMA6J26CA-M3/61) must be used instead of the SMA6J26A-M3/61.
SMA6J26A-M3/61 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):
- 26V
- Voltage - Breakdown (Min):
- 28.9V
- Voltage - Clamping (Max) @ Ipp:
- 40.9V
- Current - Peak Pulse (10/1000µs):
- 14.7A
- Power - Peak Pulse:
- 600W
- 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)
SMA6J26A-M3/61 FAQ
1.How can I place an order for SMA6J26A-M3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA6J26A-M3/61 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 SMA6J26A-M3/61 reliable?
The price and inventory of SMA6J26A-M3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA6J26A-M3/61 is usually 5 days.
3.What payment methods are accepted for SMA6J26A-M3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA6J26A-M3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA6J26A-M3/61?
SMA6J26A-M3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA6J26A-M3/61 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 SMA6J26A-M3/61?
For technical support, including SMA6J26A-M3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA6J26A-M3/61 requirements.
6.How does Aetrix verify that SMA6J26A-M3/61 is sourced from the original manufacturer or authorized distributors?
All SMA6J26A-M3/61 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 SMA6J26A-M3/61 meets industry standards.
7.What is the process for return or replacement of SMA6J26A-M3/61?
All SMA6J26A-M3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMA6J26A-M3/61, 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 SMA6J26A-M3/61 part is unused and in its original packaging.
Return procedure for SMA6J26A-M3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA6J26A-M3/61 Tags
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