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Taiwan Semiconductor Corporation SSL33 V7G
- Part No.:
- SSL33 V7G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SSL33 V7G.pdf
- Description:
- DIODE SCHOTTKY 30V 3A DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,353
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Product details
Overview
SSL33 V7G from Taiwan Semiconductor is a 3A, 30V Schottky barrier surface-mount rectifier in DO-214AB (SMC) package, optimized for high-efficiency switching mode power supplies and lighting converters. It delivers low forward voltage (0.41V max at 3A, 25°C), high surge capability (100A IFSM), and operates up to 125°C junction temperature.
For engineers reviewing the SSL33 V7G datasheet, SSL33 V7G pinout, SSL33 V7G application, or SSL33 V7G equivalent, key selection criteria include repetitive peak reverse voltage (30V), thermal resistance (RθJL = 13°C/W), moisture sensitivity level (MSL 1), and RoHS/halogen-free compliance for automated SMT assembly.
Technical Context
This Schottky rectifier uses a single-die construction with guard ring overvoltage protection and matte tin-plated leads compliant with J-STD-002 solderability. Its low VF and high IFSM support high-frequency SMPS designs where conduction loss and transient robustness are critical.
The device is rated for -55°C to +125°C junction operation, with RθJA = 53°C/W on a 16mm × 16mm Cu pad PCB - enabling compact thermal design in space-constrained adapters and LED drivers without forced airflow.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 30 V - maximum non-repetitive reverse blocking voltage; defines safe operating range in DC-DC output rectification |
| IF | 3 A - continuous average forward current; supports mid-power converter outputs up to ~36W at 12V |
| VF (max) | 0.41 V @ 3A, 25°C - reduces conduction loss vs. standard PN diodes, improving efficiency by ~1–2% in 12V/3A rails |
| IFSM | 100 A - peak surge rating for 8.3ms half-sine; withstands inrush and fault transients in offline adapters |
| TJ(max) | +125°C - enables operation in thermally demanding environments like enclosed LED drivers or industrial PSUs |
| RθJL | 13 °C/W - low junction-to-lead thermal resistance allows direct heat transfer to PCB copper, simplifying thermal layout |
Pinout & Package
DO-214AB (SMC) surface-mount package with cathode-indicated band; molded plastic body meets UL 94V-0; polarity marked per JEDEC standard.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input current terminal | Connected to switch node or transformer secondary; accepts pulsed high-current input during conduction phase |
| Cathode | Output current terminal | Connected to output capacitor and load; polarity band identifies this terminal for correct PCB placement |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring structure | Enhances ruggedness against transient overvoltage events without derating VRRM |
| Moisture sensitivity level 1 | Enables unlimited floor life before reflow; eliminates bake requirement in SMT line |
| Halogen-free & RoHS compliant | Meets global environmental regulations for consumer and industrial end equipment |
| High surge current capability (100A) | Supports reliable operation during cold-start and short-circuit recovery in AC-DC adapters |
Applications
| AC-DC Adapters | LED Lighting Drivers |
|---|---|
Use Scenario: Secondary-side rectification in 12–24V, 30–60W wall adapters for consumer electronics. IC Role / Device Role / Timing Role: Schottky rectifier replacing fast recovery diodes to reduce losses and improve light-load efficiency. Use Value: 0.41V VF lowers conduction loss by ~0.4W vs. 0.65V diode at 3A, directly improving adapter thermal profile and no-load standby performance. | Use Scenario: Output rectification in constant-current LED drivers for commercial downlights and streetlights. IC Role / Device Role / Timing Role: High-reliability power diode handling continuous 3A output with minimal thermal rise under ambient temperatures up to 85°C. Use Value: RθJL = 13°C/W enables stable operation without heatsink on FR4 PCBs, reducing BOM cost and board area. |
| DC-DC Converters | Industrial Power Supplies |
Use Scenario: Synchronous rectifier replacement in isolated 48V-to-12V telecom buck converters. IC Role / Device Role / Timing Role: Freewheeling diode during high-side FET off-time; handles 3A average current with fast recovery. Use Value: Low VF and high IFSM maintain regulation during load transients while minimizing voltage droop across the diode. | Use Scenario: Input rectification stage in 24V/48V industrial PSUs with wide ambient temperature range (-40°C to +70°C). IC Role / Device Role / Timing Role: Primary rectifier in bridge or center-tapped configuration; rated for continuous 3A and 100A surge. Use Value: MSL 1 and -55°C to +125°C rating ensure long-term reliability in unventilated enclosures and factory automation environments. |
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-3EY30-M3/57T | Same DO-214AB package, 3A/30V, VF = 0.49V max @ 3A - 0.08V higher than SSL33 V7G | Slightly lower efficiency in high-duty-cycle converters; identical surge rating (100A) | Preferred when Vishay qualification is required; otherwise SSL33 V7G offers lower conduction loss |
| ON Semiconductor SB330 | DO-214AA (SMB) package, 3A/30V, VF = 0.52V max - higher VF and smaller thermal pad area | Higher RθJA (~75°C/W) limits power density; not drop-in due to different footprint | Select only if SMB footprint is fixed; SSL33 V7G provides superior thermal performance and efficiency in SMC layout |
Compared with VS-3EY30-M3/57T and SB330, SSL33 V7G delivers the lowest forward voltage (0.41V) and best thermal resistance (RθJL = 13°C/W) in DO-214AB, making it optimal for thermally constrained, high-efficiency 3A rectification where layout flexibility and efficiency margins matter.
Availability
SSL33 V7G is available at Aetrix Electronics and suitable for AC-DC adapters, LED lighting drivers, and industrial DC-DC converters requiring stable component supply, full traceability, and long-term production continuity.
Supply support for SSL33 V7G 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 global power management and protection markets since 1979.
The SSL32–SSL34 series was designed specifically for high-reliability, high-efficiency secondary-side rectification in cost-sensitive, high-volume power conversion applications - balancing low VF, rugged surge capability, and automated assembly compatibility.
FAQ
What is the maximum repetitive peak reverse voltage of the SSL33 V7G?
The SSL33 V7G has a maximum repetitive peak reverse voltage (VRRM) of 30 V. This rating is confirmed in the Absolute Maximum Ratings table of the official TSC datasheet (Version K2310), and defines the highest reverse voltage the device can block continuously without breakdown. It is distinct from the SSL32 (20 V) and SSL34 (40 V) variants in the same family.
Is SSL33 V7G suitable for lead-free reflow soldering processes?
Yes, SSL33 V7G is compatible with lead-free reflow soldering. Its matte tin-plated leads meet J-STD-002 solderability requirements, and its moisture sensitivity level is rated MSL 1 - meaning it has unlimited floor life and requires no pre-bake prior to reflow. The device is qualified for peak reflow temperatures up to 260°C per JEDEC J-STD-020.
What is the forward voltage specification for SSL33 V7G at 3A and 100°C junction temperature?
The SSL33 V7G does not specify a maximum forward voltage at 100°C and 3A in the provided datasheet. However, the reverse leakage current is specified as ≤50 mA at TJ = 100°C and rated VR. Forward voltage increases with temperature, but only the 25°C condition (VF ≤ 0.41 V @ 3A) is guaranteed. Designers should refer to Figure 4 (Typical Forward Characteristics) for VF vs. IF curves across temperature.
Does SSL33 V7G have a guard ring structure, and what is its purpose?
Yes, SSL33 V7G incorporates a guard ring structure, explicitly listed under FEATURES in the TSC datasheet. This design enhances edge termination robustness, improving resistance to surface flashover and localized avalanche during transient overvoltage events - thereby increasing reliability without requiring external snubbers or voltage derating in typical SMPS applications.
What is the marking code printed on the SSL33 V7G device body?
The marking code for SSL33 V7G is "SL33", as confirmed in the Absolute Maximum Ratings table (page 1 of datasheet Version K2310). This two-character code appears adjacent to the cathode band on the DO-214AB package body and is used for visual identification and traceability during assembly and inspection.
SSL33 V7G 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):
- 30 V
- Current - Average Rectified (Io):
- 3A
- Voltage - Forward (Vf) (Max) @ If:
- -
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 200 µA @ 30 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
- Operating Temperature - Junction:
- -55°C ~ 125°C
SSL33 V7G FAQ
1.How can I place an order for SSL33 V7G through Aetrix?
Please submit a Request for Quotation (RFQ) for SSL33 V7G 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 SSL33 V7G reliable?
The price and inventory of SSL33 V7G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SSL33 V7G is usually 5 days.
3.What payment methods are accepted for SSL33 V7G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SSL33 V7G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SSL33 V7G?
SSL33 V7G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SSL33 V7G 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 SSL33 V7G?
For technical support, including SSL33 V7G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SSL33 V7G requirements.
6.How does Aetrix verify that SSL33 V7G is sourced from the original manufacturer or authorized distributors?
All SSL33 V7G 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 SSL33 V7G meets industry standards.
7.What is the process for return or replacement of SSL33 V7G?
All SSL33 V7G units undergo pre-shipment inspection (PSI). If there is an issue with SSL33 V7G, 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 SSL33 V7G part is unused and in its original packaging.
Return procedure for SSL33 V7G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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