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Taiwan Semiconductor Corporation SMA6J26A R3G
- Part No.:
- SMA6J26A R3G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA6J26A R3G.pdf
- Description:
- TVS DIODE 26VWM 40.9VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,902
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Product details
Overview
SMA6J26A R3G from Taiwan Semiconductor is a 600W surface-mount transient voltage suppressor (TVS) diode with a working standoff voltage of 26 V, breakdown voltage range 28.9–31.9 V, and clamping voltage of 40.9 V at 14.7 A peak pulse current. It uses a DO-214AC (SMA) package and is designed for automotive and industrial DC/DC converter protection against ISO 7637-2 transients.
For engineers reviewing the SMA6J26A R3G datasheet, SMA6J26A R3G pinout, SMA6J26A R3G application, or SMA6J26A R3G equivalent, key selection factors include its 10/1000 µs waveform power rating, -55°C to +175°C operating junction temperature, moisture sensitivity level 1 compliance, and verified clamping performance under standardized surge pulses.
Technical Context
This unidirectional TVS diode features a glass-passivated silicon junction and responds to transients in less than 1.0 ps. Its single-die configuration delivers precise voltage clamping during fast-rising ESD or load-dump events, with guaranteed breakdown at 1 mA test current and ≤1.0 µA reverse leakage at 26 V.
The device meets ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b immunity requirements and is rated for 50 A non-repetitive forward surge current (8.3 ms half-sine). Its UL 94V-0 molded case and matte tin-plated leads support automated SMT assembly and long-term reliability in harsh environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 26 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR @ IT=1 mA | 28.9–31.9 V - Verified breakdown threshold ensures predictable turn-on during overvoltage |
| VC @ IPPM=14.7 A | 40.9 V - Clamped voltage limits downstream circuit stress during 10/1000 µs surges |
| PPPM | 600 W - Peak pulse power handling capability per standard 10/1000 µs waveform |
| TJ Range | -55°C to +175°C - Enables operation in under-hood automotive and industrial power systems |
| Package | DO-214AC (SMA) - Standardized SMT footprint compatible with reflow and wave soldering |
Pinout & Package
DO-214AC (SMA) package: molded plastic body with cathode band marking polarity; matte tin-plated leads; weight ≈ 0.060 g; UL 94V-0 rated compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side of protected line; enables unidirectional clamping to ground |
| Cathode | Reverse-biased clamping terminal | Marked by band; connected to higher-potential rail or signal line; conducts during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR and low parameter drift across temperature and lifetime |
| Fast response time < 1.0 ps | Protects sensitive ICs before transient energy couples into traces or components |
| ISO 7637-2 compliance | Validated performance against automotive load-dump and supply interruption transients |
| Moisture sensitivity level 1 | Eliminates bake requirements prior to reflow, reducing manufacturing cost and risk |
| Halogen-free & RoHS compliant | Meets environmental regulations for automotive and industrial end-equipment markets |
Applications
| Automotive On-Board DC/DC Converters | Industrial Switching Mode Power Supplies |
|---|---|
Use Scenario: Protection of 24 V input rails in vehicle infotainment or ADAS domain controllers against battery load-dump pulses. IC Role / Device Role / Timing Role: Unidirectional TVS placed between input rail and chassis ground to clamp transients exceeding 26 V. Use Value: Limits clamped voltage to 40.9 V at 14.7 A, preventing damage to downstream buck controllers rated for 42 V max input. | Use Scenario: Input-stage surge suppression in factory automation PLC power modules exposed to inductive switching noise. IC Role / Device Role / Timing Role: Standoff-rated TVS absorbing repetitive 600 W pulses without degradation across thermal cycles. Use Value: Maintains <1.0 µA leakage at 26 V, avoiding standby current penalties in always-on control circuits. |
| LED Lighting Drivers | AC-DC Adapter Secondary Side |
Use Scenario: Overvoltage protection on constant-current LED string outputs subject to cable discharge events. IC Role / Device Role / Timing Role: Fast-clamping TVS shunting surge current away from LED driver IC output pins. Use Value: Sub-1 ps response ensures clamping initiates before driver IC internal ESD structures fail. | Use Scenario: Secondary-side transient suppression in wall-mounted USB-C adapters subjected to mains-coupled surges. IC Role / Device Role / Timing Role: Unidirectional TVS referenced to secondary ground, protecting synchronous rectifier MOSFETs and feedback optocouplers. Use Value: 600 W peak power rating handles high-energy 10/1000 µs surges while maintaining tight VC tolerance. |
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 from ON Semiconductor | Identical VWM, VBR, and VC specs; same DO-214AC package; ±5% VBR tolerance vs. TSC's ±5.2% | Qualified to AEC-Q101; broader automotive qualification history | Select when AEC-Q101 documentation is mandatory for Tier 1 automotive programs |
| P6SMB26A from Vishay | Same 26 V VWM; slightly higher VC = 42.1 V at 14.3 A; 600 W rating; identical JEDEC DO-214AA outline (SMB) | Uses DO-214AA (SMB), which has larger pad area and 0.1 mm greater body height than DO-214AC (SMA) | Choose only if board layout accommodates SMB footprint and higher clamping voltage is acceptable |
Compared with SMA6J26A R3G, the ON Semiconductor variant offers stronger automotive traceability but no electrical differentiation, while the Vishay P6SMB26A requires PCB redesign due to package mismatch and delivers looser clamping performance-making SMA6J26A R3G optimal for space-constrained, cost-sensitive 26 V rail protection where DO-214AC is already established.
Availability
SMA6J26A R3G is available at Aetrix Electronics and suitable for automotive on-board DC/DC converters, industrial switching mode power supplies, and LED lighting drivers requiring stable component supply and full compliance with ISO 7637-2 transient immunity standards.
Supply support for SMA6J26A R3G 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
Taiwan Semiconductor Corporation (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving automotive, industrial, and consumer markets since 1979.
The SMA6JxxA series was developed specifically for robust, high-power transient suppression in compact SMT packages targeting automotive electronics and industrial power systems where reliability under repeated surge stress is critical.
FAQ
What is the maximum clamping voltage of the SMA6J26A R3G at its rated peak pulse current?
The SMA6J26A R3G has a maximum clamping voltage (VC) of 40.9 V when subjected to its rated peak pulse current of 14.7 A under the standard 10/1000 µs waveform. This value is measured and guaranteed per Taiwan Semiconductor's E2102 datasheet revision and defines the upper voltage limit imposed on protected circuits during surge events. The SMA6J26A R3G maintains this clamping performance across its specified operating temperature range.
Is the SMA6J26A R3G suitable for automotive applications requiring ISO 7637-2 compliance?
Yes, the SMA6J26A R3G is explicitly tested and certified to meet ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b requirements, making it suitable for automotive power line protection including 12 V and 24 V systems. Its 175°C maximum junction temperature, glass-passivated junction, and moisture sensitivity level 1 rating further support deployment in engine bay and infotainment modules. The SMA6J26A R3G data sheet confirms this compliance in the FEATURES section.
What is the marking code for the SMA6J26A R3G on the device body?
The SMA6J26A R3G is marked with the code "6CE" on its package body, as confirmed in the Electrical Specifications table of Taiwan Semiconductor's E2102 datasheet. This two-character alphanumeric code uniquely identifies the 26 V variant within the SMA6J10A–SMA6J30A family and is laser-etched or printed adjacent to the cathode band on the DO-214AC (SMA) case. The SMA6J26A R3G marking is consistent across all production lots meeting specification E2102.
Does the SMA6J26A R3G have a bidirectional or unidirectional configuration?
The SMA6J26A R3G is a unidirectional TVS diode, indicated by its single cathode band marking and electrical specifications showing defined VWM and VBR only for reverse bias. It conducts in forward direction like a standard diode and clamps only when reverse voltage exceeds its breakdown threshold. This configuration is appropriate for DC rail protection where polarity is fixed. The SMA6J26A R3G datasheet specifies "unidirectional" in the ordering information and characteristics tables.
What is the steady-state power dissipation rating for the SMA6J26A R3G?
The SMA6J26A R3G has a steady-state power dissipation (PD) rating of 4 W at 25°C ambient, as listed in the Absolute Maximum Ratings table of the E2102 datasheet. This value applies to continuous DC or low-frequency reverse leakage conditions-not transient events-and must be derated linearly above 25°C per the pulse derating curve. Thermal design must ensure junction temperature remains ≤175°C. The SMA6J26A R3G's 4 W PD supports reliable operation in thermally constrained layouts when combined with adequate copper pour.
SMA6J26A R3G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-214AC, SMA
- Series:
- SMA6J
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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 ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
SMA6J26A R3G FAQ
1.How can I place an order for SMA6J26A R3G through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA6J26A R3G 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 R3G reliable?
The price and inventory of SMA6J26A R3G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA6J26A R3G is usually 5 days.
3.What payment methods are accepted for SMA6J26A R3G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA6J26A R3G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA6J26A R3G?
SMA6J26A R3G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA6J26A R3G 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 R3G?
For technical support, including SMA6J26A R3G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA6J26A R3G requirements.
6.How does Aetrix verify that SMA6J26A R3G is sourced from the original manufacturer or authorized distributors?
All SMA6J26A R3G 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 R3G meets industry standards.
7.What is the process for return or replacement of SMA6J26A R3G?
All SMA6J26A R3G units undergo pre-shipment inspection (PSI). If there is an issue with SMA6J26A R3G, 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 R3G part is unused and in its original packaging.
Return procedure for SMA6J26A R3G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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