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Taiwan Semiconductor Corporation SSL34 M6G
- Part No.:
- SSL34 M6G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SSL34 M6G.pdf
- Description:
- DIODE SCHOTTKY 40V 3A DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,819
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Product details
Overview
SSL34 M6G from Taiwan Semiconductor is a 40 V, 3 A Schottky barrier surface-mount rectifier in DO-214AB (SMC) package, optimized for high-efficiency switching mode power supplies and lighting converters with low forward voltage (0.41 V max at 3 A) and 100 A surge capability.
For engineers reviewing the SSL34 M6G datasheet, SSL34 M6G pinout, SSL34 M6G application, or SSL34 M6G equivalent, key selection criteria include repetitive peak reverse voltage (40 V), junction temperature range (–55°C to +125°C), thermal resistance (RθJL = 13°C/W), and moisture sensitivity level (MSL 1).
Technical Context
This single-die Schottky rectifier operates with low conduction loss due to its 0.41 V maximum forward voltage at 3 A and 25°C, enabling high-efficiency DC/DC conversion. Its guard ring structure provides overvoltage protection, and the device supports high-reliability automated assembly per J-STD-002 solderability standards.
Thermal performance is characterized with RθJA = 53°C/W on a 16 mm × 16 mm Cu pad PCB, and RθJC = 15°C/W enables effective heat transfer to external heatsinking. Reverse leakage remains ≤500 μA at 25°C and ≤100 mA at 100°C under rated 40 V reverse bias.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 40 V - Maximum non-repetitive reverse voltage the device blocks without breakdown |
| IF | 3 A - Continuous average forward current rating at 25°C ambient |
| IFSM | 100 A - Peak non-repetitive surge current (8.3 ms half-sine) for transient overload handling |
| VF (max) | 0.41 V - Forward voltage drop at 3 A, directly determining conduction loss and thermal load |
| RθJL | 13 °C/W - Junction-to-lead thermal resistance, critical for lead-mounted thermal design |
| TJ range | –55°C to +125°C - Operating junction temperature window defining reliability envelope |
| MSL | Level 1 - No floor life limitation; safe for reflow without dry-pack or baking |
Pinout & Package
Package: DO-214AB (SMC), surface-mount plastic case with cathode band polarity indicator, matte tin-plated leads, UL 94V-0 molding compound, weight ≈ 0.210 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side of circuit; requires thermal relief on PCB for soldering |
| Cathode | Forward current exit / reverse voltage blocking terminal | Marked by visible band; must be routed to higher-potential node; determines reverse bias orientation |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring structure | Enhances ruggedness against transient overvoltage events without derating VRRM |
| Low VF (0.41 V max) | Reduces power dissipation by ~30% vs. comparable 40 V Si diodes, lowering heatsink requirements |
| High IFSM (100 A) | Supports robust startup and fault-current handling in SMPS primary-side rectification |
| MSL Level 1 | Enables direct placement into standard SMT reflow without moisture mitigation steps |
| Halogen-free & RoHS | Meets global environmental compliance mandates for industrial and consumer end equipment |
Applications
| LED Lighting Driver | AC-DC Adapter Output Rectification |
|---|---|
Use Scenario: High-efficiency secondary-side rectification in constant-current LED drivers for commercial downlights. IC Role / Device Role / Timing Role: Schottky rectifier replacing conventional fast recovery diodes to minimize conduction loss and thermal rise. Use Value: Enables >90% system efficiency at 3 A output with reduced heatsink volume and improved lumen maintenance over lifetime. | Use Scenario: Output rectification in universal-input 12 V/3 A wall adapters for IoT sensors and USB-C peripherals. IC Role / Device Role / Timing Role: Low-VF freewheeling path during flyback transformer reset phase. Use Value: Reduces no-load power consumption and improves light-load regulation by limiting forward conduction loss. |
| DC-DC Buck Converter Freewheel Diode | Industrial SMPS Secondary Rectifier |
Use Scenario: Synchronous-buck auxiliary freewheel path in 24 V input, 5 V/3 A industrial power modules. IC Role / Device Role / Timing Role: Uncontrolled freewheeling diode during high-side switch off-time. Use Value: Maintains stable output regulation under transient load steps while avoiding reverse recovery noise. | Use Scenario: Main output rectification in 48 V telecom power supplies delivering 3 A at 12 V. IC Role / Device Role / Timing Role: Primary unidirectional current path converting transformer secondary AC to regulated DC. Use Value: Supports continuous 3 A operation at full load with junction temperature maintained below 125°C on standard 2-layer PCB. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-3EWH04-M3/45 | Same DO-214AB package, 40 V VRRM, but 0.45 V VF max at 3 A; RθJA = 60°C/W | Slightly higher conduction loss and worse thermal performance on identical PCB layout | Acceptable where margin exists in thermal budget; verify layout derating at 100°C ambient |
| ON Semiconductor SB340-TB | DO-214AA (SMB) package, 40 V VRRM, 0.52 V VF max; lower IFSM (80 A) | Smaller footprint but higher VF and lower surge rating; not MSL Level 1 | Only suitable if board space is constrained and surge immunity is secondary to size |
Compared with VS-3EWH04-M3/45 and SB340-TB, SSL34 M6G delivers the lowest forward voltage and best thermal resistance in its class, making it preferred for thermally constrained, high-efficiency 3 A rectification where MSL Level 1 handling is required.
Availability
SSL34 M6G is available at Aetrix Electronics and suitable for switching mode power supplies, LED lighting drivers, and AC-DC adapters requiring stable component supply, long-term manufacturability, and consistent parametric performance across production lots.
Supply support for SSL34 M6G 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, specializing in power rectifiers, TVS devices, and MOSFETs for industrial and consumer markets.
The SSL32–SSL34 series was designed specifically for high-reliability, high-efficiency secondary-side rectification in compact, cost-sensitive power converters where low VF, robust surge capability, and MSL Level 1 handling are mandatory.
FAQ
What is the maximum repetitive peak reverse voltage rating for SSL34 M6G?
The SSL34 M6G has a maximum repetitive peak reverse voltage (VRRM) of 40 V, as confirmed in the Absolute Maximum Ratings table. This value defines the highest reverse-bias voltage the device can block continuously without risk of avalanche breakdown under normal operating conditions.
Does SSL34 M6G have a specified forward voltage at 3 A and 100°C junction temperature?
No - the datasheet specifies VF only at TJ = 25°C (≤0.41 V at IF = 3 A). At elevated temperatures, VF decreases slightly, but no guaranteed maximum is provided beyond 25°C; design margins should rely on the 25°C spec and thermal modeling.
Is SSL34 M6G compatible with lead-free reflow soldering processes?
Yes - SSL34 M6G features matte tin-plated leads compliant with J-STD-002 and is rated for MSL Level 1, meaning it withstands standard Pb-free reflow profiles (peak 260°C) without preconditioning or dry-pack requirements.
What is the marking code printed on the SSL34 M6G device body?
The SSL34 M6G is marked with "SL34" on the device body, as specified in the Absolute Maximum Ratings table. This 3-character code distinguishes it from SSL32 (SL32) and SSL33 (SL33) variants within the same family.
How does the guard ring feature in SSL34 M6G improve reliability?
The guard ring in SSL34 M6G enhances edge termination robustness, suppressing premature avalanche at the silicon periphery under transient overvoltage stress. This allows the device to sustain rated VRRM without derating and improves long-term reliability in noisy power environments.
SSL34 M6G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-214AB, SMC
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 40 V
- Current - Average Rectified (Io):
- 3A
- Voltage - Forward (Vf) (Max) @ If:
- 410 mV @ 3 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 500 µA @ 40 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
- Operating Temperature - Junction:
- -55°C ~ 125°C
SSL34 M6G FAQ
1.How can I place an order for SSL34 M6G through Aetrix?
Please submit a Request for Quotation (RFQ) for SSL34 M6G 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 SSL34 M6G reliable?
The price and inventory of SSL34 M6G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SSL34 M6G is usually 5 days.
3.What payment methods are accepted for SSL34 M6G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SSL34 M6G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SSL34 M6G?
SSL34 M6G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SSL34 M6G 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 SSL34 M6G?
For technical support, including SSL34 M6G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SSL34 M6G requirements.
6.How does Aetrix verify that SSL34 M6G is sourced from the original manufacturer or authorized distributors?
All SSL34 M6G 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 SSL34 M6G meets industry standards.
7.What is the process for return or replacement of SSL34 M6G?
All SSL34 M6G units undergo pre-shipment inspection (PSI). If there is an issue with SSL34 M6G, 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 SSL34 M6G part is unused and in its original packaging.
Return procedure for SSL34 M6G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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