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Vishay General Semiconductor - Diodes Division SMA6J26AHM3/61
- Part No.:
- SMA6J26AHM3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA6J26AHM3/61.pdf
- Description:
- TVS DIODE 26VWM 40.9VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:8,370
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Product details
Overview
SMA6J26AHM3/61 from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) in SMA (DO-214AC) package, with 26 V stand-off voltage (VWM), 28.9–31.9 V breakdown voltage (VBR at IT = 1 mA), 40.9 V maximum clamping voltage at 14.7 A (10/1000 μs), and 600 W peak pulse power rating. It protects MOSFETs and ICs against inductive switching transients in industrial power supplies.
For engineers reviewing the SMA6J26AHM3/61 datasheet, SMA6J26AHM3/61 pinout, SMA6J26AHM3/61 application, or SMA6J26AHM3/61 equivalent, this page delivers verified electrical parameters, thermal resistance (RθJA = 120 °C/W), polarity marking (cathode band), JEDEC-compliant MSL level 1 packaging, and halogen-free RoHS compliance per Vishay Doc. #89460.
Technical Context
This TVS diode operates as a unidirectional clamping device, triggered when reverse voltage exceeds VBR (28.9–31.9 V), limiting transient energy via low dynamic resistance (RD = 0.614 Ω) to hold VC ≤ 40.9 V at IPP = 14.7 A (10/1000 μs). Its junction temperature range spans –55 °C to +150 °C, with derating above TA = 25 °C per Fig. 2.
Designed for PCB mounting on 5.0 mm × 5.0 mm copper pads per terminal, it achieves 4 W power dissipation at TA = 50 °C and withstands 50 A non-repetitive forward surge (IFSM, 8.3 ms half-sine). The SMA package supports automated placement and meets UL 94 V-0 flammability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 26 V - Maximum continuous reverse operating voltage before clamping initiates |
| VBR min/max | 28.9 V / 31.9 V at IT = 1 mA - Confirmed breakdown threshold under standardized DC test |
| VC @ IPP | 40.9 V at 14.7 A (10/1000 μs) - Clamping voltage limiting downstream component stress during surge |
| PPPM (10×1000 μs) | 600 W - Peak transient power handling capability under standard lightning surge waveform |
| RθJA | 120 °C/W - Thermal resistance defining junction-to-ambient temperature rise under steady-state PD = 4 W |
| Polarity | Unidirectional - Cathode marked by color band; blocks forward conduction beyond VF ≈ 3.5 V at 25 A |
| MSL Level | Level 1 per J-STD-020 - No floor life limitation; safe for reflow up to 260 °C peak |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, halogen-free, RoHS-compliant, matte tin-plated leads solderable per J-STD-002. Polarity indicated by cathode band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / transient return path | Connected to ground or low-impedance return in unidirectional clamp configuration |
| Cathode | Transient voltage sensing / clamping node | Connected to protected line (e.g., MOSFET drain or IC supply rail); color band identifies this terminal |
Key Features
| Feature | Design Value |
|---|---|
| Clamping performance | VC = 40.9 V at 14.7 A ensures MOSFET VDS and IC supply rails remain below absolute maximum ratings during 10/1000 μs surges |
| Thermal robustness | RθJA = 120 °C/W enables reliable operation at PD = 4 W without external heatsinking on standard FR-4 PCB |
| Automated assembly support | MSL Level 1 rating and DO-214AC footprint allow direct integration into high-volume SMT lines without dry-pack or baking |
| Environmental compliance | M3 suffix confirms halogen-free, RoHS-compliant construction meeting Vishay's industrial-grade material categorization |
Applications
| Industrial Motor Drives | Telecom Power Interfaces |
|---|---|
Use Scenario: Protection of IGBT gate drivers and DC bus sensing circuits against inductive kickback from relay coils and contactors. IC Role / Device Role / Timing Role: Unidirectional TVS placed across gate-source or supply-rail inputs to clamp transients before they reach sensitive control logic. Use Value: Limits VGS spikes to <40.9 V, preventing gate oxide rupture in 20–30 V-rated drivers while maintaining fast response (<1 ns). | Use Scenario: Surge suppression on -48 V DC input lines of base station power modules exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Primary clamping element in multi-stage protection network, absorbing bulk energy before downstream MOVs or GDTs. Use Value: Handles 600 W (10/1000 μs) without degradation, enabling compliance with IEC 61000-4-5 Level 4 (4 kV) when combined with series impedance. |
| Automotive Body Control Modules | Consumer Appliance Power Supplies |
Use Scenario: Input rail protection for microcontrollers and CAN transceivers subjected to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Standoff-rated TVS (VWM = 26 V) placed after fuse and before LDO, providing fast clamping during 12 V system transients. Use Value: Withstands 50 A IFSM and operates from –55 °C to +150 °C, meeting AEC-Q101 stress requirements for under-hood deployment. | Use Scenario: Secondary-side overvoltage protection on 24 V auxiliary rails in washing machine motor controllers. IC Role / Device Role / Timing Role: Clamp device across relay coil flyback path and MCU VDD pins to prevent latch-up during solenoid de-energization. Use Value: Low RD (0.614 Ω) ensures rapid voltage collapse post-surge, reducing energy dissipation time and improving system recovery stability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA6J26AHE3/61 | RoHS-compliant but not halogen-free; same VWM/VBR/VC/PPPM specs and SMA package | No difference in circuit function or layout; differs only in material compliance (E3 vs. M3) | Select E3 if halogen content is unrestricted; choose M3 (SMA6J26AHM3/61) where halogen-free mandate applies |
| SMCJ26A | Larger SMC (DO-214AB) package; higher PPPM = 1500 W (10/1000 μs); identical VWM/VBR/VC ratings | Requires larger PCB pad area and higher thermal mass; suited for higher-energy surge environments | Use SMCJ26A where >600 W surge margin is required; retain SMA6J26AHM3/61 for space-constrained layouts with verified 600 W adequacy |
Compared with SMA6J26AHE3/61, SMA6J26AHM3/61 adds halogen-free compliance without altering electrical behavior; versus SMCJ26A, it trades 2.5× lower surge power rating for 40 % smaller footprint and identical clamping performance at rated conditions.
Availability
SMA6J26AHM3/61 is available at Aetrix Electronics and suitable for industrial motor drives, telecom power interfaces, and automotive body control modules requiring stable component supply with full traceability and lifecycle management.
Supply support for SMA6J26AHM3/61 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 for industrial, automotive, and computing markets.
The SMA6JxxA family targets surface-mount transient suppression in space-constrained, high-reliability power and signal-line applications, emphasizing MSL Level 1 process compatibility and stable clamping across temperature.
FAQ
What is the maximum clamping voltage of the SMA6J26AHM3/61 under a 10/1000 μs surge?
The SMA6J26AHM3/61 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, as specified in Vishay Doc. #89460, Table on page 2. This value ensures protected components remain within safe operating limits during standardized surge events.
Does the SMA6J26AHM3/61 meet lead-free reflow requirements?
Yes, the SMA6J26AHM3/61 meets lead-free reflow requirements with MSL Level 1 per J-STD-020 and a maximum peak temperature of 260 °C. Its matte tin-plated leads are solderable per J-STD-002, and the M3 suffix confirms halogen-free, RoHS-compliant construction suitable for modern assembly processes.
How does the thermal resistance of the SMA6J26AHM3/61 affect its power handling?
The SMA6J26AHM3/61 has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W. At TA = 50 °C, this allows 4 W continuous power dissipation without exceeding TJ max = 150 °C-critical for sustained surge duty cycles in enclosed industrial enclosures where airflow is limited.
Is the SMA6J26AHM3/61 unidirectional or bidirectional?
The SMA6J26AHM3/61 is unidirectional, as confirmed in the Vishay datasheet features section and electrical characteristics table. It conducts only in forward bias (anode positive) and clamps reverse transients above VBR; polarity is marked by a cathode band on the SMA package body.
What is the leakage current specification for the SMA6J26AHM3/61 at its stand-off voltage?
At VWM = 26 V and TA = 25 °C, the SMA6J26AHM3/61 exhibits a maximum reverse leakage current (ID) of 0.2 μA, per the Electrical Characteristics table on page 2 of Vishay Doc. #89460. This ultra-low leakage minimizes standby power loss in always-on systems such as telecom power interfaces.
SMA6J26AHM3/61 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
SMA6J26AHM3/61 FAQ
1.How can I place an order for SMA6J26AHM3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA6J26AHM3/61 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 SMA6J26AHM3/61 reliable?
The price and inventory of SMA6J26AHM3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA6J26AHM3/61 is usually 5 days.
3.What payment methods are accepted for SMA6J26AHM3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA6J26AHM3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA6J26AHM3/61?
SMA6J26AHM3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA6J26AHM3/61 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 SMA6J26AHM3/61?
For technical support, including SMA6J26AHM3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA6J26AHM3/61 requirements.
6.How does Aetrix verify that SMA6J26AHM3/61 is sourced from the original manufacturer or authorized distributors?
All SMA6J26AHM3/61 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 SMA6J26AHM3/61 meets industry standards.
7.What is the process for return or replacement of SMA6J26AHM3/61?
All SMA6J26AHM3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMA6J26AHM3/61, 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 SMA6J26AHM3/61 part is unused and in its original packaging.
Return procedure for SMA6J26AHM3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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