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Vishay General Semiconductor - Diodes Division SMA6J26A-E3/61
- Part No.:
- SMA6J26A-E3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA6J26A-E3/61.pdf
- Description:
- TVS DIODE 26VWM 47.9VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:8,291
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Product details
Overview
SMA6J26A-E3/61 from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMA (DO-214AC) package, rated for 26 V stand-off voltage (VWM), 28.9–31.9 V breakdown voltage (VBR), and 600 W peak pulse power (10/1000 µs). It clamps transients to ≤40.9 V at 14.7 A IPPM and is designed for protecting MOSFETs, ICs, and sensor signal lines against inductive switching surges in industrial and telecom equipment.
For engineers reviewing the SMA6J26A-E3/61 datasheet, SMA6J26A-E3/61 pinout, SMA6J26A-E3/61 application, or SMA6J26A-E3/61 equivalent, key selection criteria include verified clamping voltage at rated surge current, unidirectional polarity compliance, thermal resistance (RθJA = 120 °C/W), and RoHS-compliant matte tin-plated leads suitable for J-STD-002 soldering.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: when reverse voltage exceeds VBR (28.9–31.9 V), it avalanches to limit transient energy across protected circuit nodes. Its dynamic resistance (RD = 0.614 Ω) directly determines clamping rise under fast 8/20 µs surges (VC = 47.9 V at 75 A).
Thermal design relies on RθJA = 120 °C/W and PD = 4.0 W at TA = 50 °C, requiring PCB copper pad area (5.0 mm × 5.0 mm per terminal) to sustain repetitive surges. The device's MSL Level 1 rating and 260 °C lead-free reflow compatibility support automated SMT assembly without moisture sensitivity concerns.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 26 V - Maximum continuous reverse operating voltage before leakage exceeds 0.2 µA |
| VBR min/max | 28.9 V / 31.9 V at IT = 1 mA - Confirmed avalanche onset range defining protection threshold |
| VC at IPPM | 40.9 V at 14.7 A (10/1000 µs) - Measured clamping voltage limiting downstream component stress |
| PPPM | 600 W (10/1000 µs) - Peak transient energy absorption capability under standard lightning surge waveform |
| ID at VWM | ≤0.2 µA - Ultra-low leakage ensuring minimal standby power loss in high-impedance circuits |
| RθJA | 120 °C/W - Thermal resistance dictating required PCB copper area for safe power dissipation |
| Polarity | Unidirectional - Cathode band-marked; blocks forward conduction, clamps only negative transients |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile case with matte tin-plated leads compliant with J-STD-002 solderability and JESD 201 Class 2 whisker resistance. Polarity indicated by cathode band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current sink during clamping | Connected to protected line; conducts surge current to ground path when V > VBR |
| Cathode | Reference node (ground or common rail) | Connected to system ground; establishes unidirectional clamping direction and defines VWM reference |
Key Features
| Feature | Design Value |
|---|---|
| Clamping performance | VC = 40.9 V @ 14.7 A ensures MOSFET gate oxide and logic IC inputs remain below 45 V stress limit |
| Surge robustness | 4000 W peak power (8/20 µs) handles telecom lightning surges per IEC 61000-4-5 Level 4 |
| Assembly compatibility | MSL Level 1 rating enables direct placement without baking; 260 °C peak reflow tolerance supports lead-free processes |
| Leakage control | 0.2 µA max ID at VWM prevents signal integrity degradation in high-impedance sensor bias networks |
| Thermal reliability | RθJL = 25 °C/W enables efficient heat transfer to PCB copper, sustaining 4 W derated power at 50 °C ambient |
Applications
| Industrial Motor Drives | Telecom Power Supply Inputs |
|---|---|
Use Scenario: Protection of gate drivers and feedback sensing lines against inductive kickback from 24 V DC solenoids and relay coils. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed across MOSFET gate-source or op-amp input pins. Use Value: Limits transient overshoot to ≤40.9 V, preventing gate oxide rupture in 30 V-rated logic-level MOSFETs and input latch-up in precision amplifiers. |
Use Scenario: Surge suppression on +48 V primary-side rails of telecom rectifier modules exposed to lightning-induced line transients. IC Role / Device Role / Timing Role: Primary-line shunt protector upstream of DC-DC converters and hot-swap controllers. Use Value: Absorbs 4000 W (8/20 µs) surges per IEC 61000-4-5, maintaining downstream converter enable thresholds and avoiding brownout resets. |
| Automotive Body Control Modules | Consumer Sensor Interface Boards |
Use Scenario: Protecting LIN bus transceivers and microcontroller I/O pins from load dump and jump-start transients in 12 V systems. IC Role / Device Role / Timing Role: Localized TVS on each LIN node connector and MCU GPIO header. Use Value: Clamps 26 V stand-off to 40.9 V within nanoseconds, preserving signal integrity during ISO 7637-2 Pulse 1/2a events without adding propagation delay. |
Use Scenario: Shielding analog outputs of temperature/humidity sensors from ESD and cable discharge events in smart home hubs. IC Role / Device Role / Timing Role: Low-capacitance (<100 pF) shunt suppressor on 3.3 V analog output traces. Use Value: Sub-µA leakage avoids loading 10 kΩ sensor output impedance; 40.9 V clamping prevents ADC overvoltage saturation during ±8 kV contact ESD. |
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-M3/61 | Halogen-free molding compound; identical electrical specs and RoHS compliance | Required where halogen-free material compliance (e.g., IPC-4101D) is mandated | Select SMA6J26A-M3/61 when environmental specifications require halogen-free construction; otherwise SMA6J26A-E3/61 suffices. |
| SMCJ26A-E3/73 | Same VWM/VBR/VC ratings but in larger SMC (DO-214AB) package; RθJA = 35 °C/W vs. 120 °C/W | Higher power handling (1500 W PPPM) but requires more PCB area and different pad layout | Choose SMCJ26A-E3/73 only if system-level surge requirements exceed 600 W or thermal budget demands lower junction rise. |
Compared with SMA6J26A-E3/61, SMA6J26A-M3/61 offers identical protection performance with halogen-free materials, while SMCJ26A-E3/73 trades compact size for higher surge capacity and superior thermal dissipation-making it suitable only when board space permits and power derating margins are insufficient.
Availability
SMA6J26A-E3/61 is available at Aetrix Electronics and suitable for industrial motor drives, telecom power supply inputs, and automotive body control modules requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMA6J26A-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 designs and manufactures discrete semiconductors including diodes, rectifiers, and TVS devices, with emphasis on reliability, ruggedness, and application-specific performance.
SMA6J26A-E3/61 belongs to Vishay's TRANSZORB® family of transient suppressors, engineered specifically for robust, low-leakage, surface-mount surge protection in harsh industrial and communications environments.
FAQ
What is the maximum clamping voltage of SMA6J26A-E3/61 at its rated peak pulse current?
The SMA6J26A-E3/61 has a maximum clamping voltage (VC) of 40.9 V at 14.7 A peak pulse current (IPPM) under the 10/1000 µs waveform. This value is measured and guaranteed per Vishay's datasheet Table "ELECTRICAL CHARACTERISTICS", ensuring predictable overvoltage limiting for downstream components like MOSFETs and ICs.
Is SMA6J26A-E3/61 suitable for bidirectional transient protection?
No, SMA6J26A-E3/61 is unidirectional only, as confirmed in the "FEATURES" section of the Vishay datasheet. It clamps only reverse-polarity transients and conducts forward current above ~3.5 V (VF at 25 A). For bidirectional protection, a separate device such as SMA6J26CA-E3/61 would be required.
What is the thermal resistance and power derating behavior of SMA6J26A-E3/61?
SMA6J26A-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. Its power dissipation (PD) is derated linearly above TA = 25 °C, reaching 4.0 W at TA = 50 °C - values validated in the "THERMAL CHARACTERISTICS" and "MAXIMUM RATINGS" tables of the official Vishay document 89460.
Does SMA6J26A-E3/61 meet lead-free soldering standards?
Yes, SMA6J26A-E3/61 is RoHS-compliant and rated for lead-free reflow with a maximum peak temperature of 260 °C, meeting J-STD-020 MSL Level 1 requirements. Its matte tin-plated leads are solderable per J-STD-002 and pass JESD 201 Class 2 whisker testing, as specified in the "MECHANICAL DATA" section.
How does the leakage current of SMA6J26A-E3/61 impact high-impedance sensor circuits?
SMA6J26A-E3/61 exhibits ≤0.2 µA reverse leakage current at its 26 V stand-off voltage (VWM), as documented in the "ELECTRICAL CHARACTERISTICS" table. This ultra-low leakage avoids measurable loading on sensor output impedances up to 100 MΩ, preserving accuracy in precision analog front-ends and battery-powered IoT nodes.
SMA6J26A-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):
- 26V
- Voltage - Breakdown (Min):
- 28.9V
- Voltage - Clamping (Max) @ Ipp:
- 47.9V
- Current - Peak Pulse (10/1000µs):
- 75A (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)
SMA6J26A-E3/61 FAQ
1.How can I place an order for SMA6J26A-E3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA6J26A-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 SMA6J26A-E3/61 reliable?
The price and inventory of SMA6J26A-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 SMA6J26A-E3/61 is usually 5 days.
3.What payment methods are accepted for SMA6J26A-E3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA6J26A-E3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA6J26A-E3/61?
SMA6J26A-E3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA6J26A-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 SMA6J26A-E3/61?
For technical support, including SMA6J26A-E3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA6J26A-E3/61 requirements.
6.How does Aetrix verify that SMA6J26A-E3/61 is sourced from the original manufacturer or authorized distributors?
All SMA6J26A-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 SMA6J26A-E3/61 meets industry standards.
7.What is the process for return or replacement of SMA6J26A-E3/61?
All SMA6J26A-E3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMA6J26A-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 SMA6J26A-E3/61 part is unused and in its original packaging.
Return procedure for SMA6J26A-E3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA6J26A-E3/61 Tags
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