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Taiwan Semiconductor Corporation SSL32HR7G
- Part No.:
- SSL32HR7G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SSL32HR7G.pdf
- Description:
- DIODE SCHOTTKY 20V 3A DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,638
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Product details
Overview
SSL32HR7G from Taiwan Semiconductor is a 3A, 20V Schottky barrier surface-mount rectifier in DO-214AB (SMC) package, featuring 0.41V max forward voltage at 3A and 100A peak surge current capability. It serves as a high-efficiency output rectifier in low-voltage DC-DC converters and AC-DC adapters.
For engineers reviewing the SSL32HR7G datasheet, SSL32HR7G pinout, SSL32HR7G application, or SSL32HR7G equivalent, key selection criteria include repetitive peak reverse voltage (20V), thermal resistance (RθJL = 13°C/W), junction temperature range (–55°C to +125°C), and RoHS/halogen-free compliance for industrial power designs.
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 switching topologies where conduction loss minimization is critical.
Thermal performance is characterized on a 16mm × 16mm Cu pad PCB per JEDEC standards, delivering RθJA = 53°C/W and RθJC = 15°C/W - enabling reliable operation up to 125°C junction temperature in compact power supplies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 20 V - maximum non-repetitive reverse blocking voltage; defines safe operating limit in flyback or buck output stages |
| IF | 3 A - continuous average forward current; supports sustained load delivery in 5–12V SMPS outputs |
| IFSM | 100 A - 8.3ms half-sine surge rating; withstands inrush and transient overload without failure |
| VF @ 3A | ≤0.41 V - low conduction loss reduces heat generation and improves efficiency vs. standard PN diodes |
| RθJL | 13 °C/W - low junction-to-lead thermal resistance enables direct PCB copper pour heat sinking |
| TJ Range | –55°C to +125°C - wide operating temperature window suitable for enclosed industrial adapters |
Pinout & Package
DO-214AB (SMC) surface-mount package with cathode indicated by molded band; 0.210g weight; UL 94V-0 molding compound; moisture sensitivity level 1 (unlimited floor life).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to switch node or transformer secondary; low-resistance metal interface minimizes voltage drop |
| Cathode | Forward current exit / reverse blocking terminal | Marked by visible band; ties to output rail or ground return path; handles full reverse voltage stress |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring structure | Enhances ruggedness against transient overvoltage events without derating VRRM |
| Matte tin-plated leads | Ensures reliable solder wetting and long-term intermetallic stability per J-STD-002 |
| Halogen-free & RoHS-compliant | Meets global environmental regulations for consumer and industrial end equipment |
| J-STD-020 Level 1 MSL | Eliminates bake requirements before reflow; supports standard SMT assembly flow |
Applications
| AC-DC Adapters | DC-DC Converters |
|---|---|
Use Scenario: Secondary-side rectification in 5–12V wall adapters powering IoT gateways and USB-C PD accessories. IC Role / Device Role / Timing Role: Output rectifier replacing fast recovery diodes to reduce conduction loss and thermal stress. Use Value: 0.41V VF cuts power dissipation by ~40% vs. 0.65V FRD, lowering heatsink requirements in space-constrained enclosures. | Use Scenario: Synchronous rectifier alternative in isolated 3.3V/5V buck-derived rails for FPGA I/O banks. IC Role / Device Role / Timing Role: Freewheeling diode in non-synchronous flyback or forward converters. Use Value: 100A IFSM sustains startup surges without degradation, improving field reliability in unregulated input conditions. |
| LED Drivers | Industrial Power Supplies |
Use Scenario: Constant-current output rectification in offline LED drivers for commercial lighting fixtures. IC Role / Device Role / Timing Role: High-efficiency output stage component handling pulsed LED loads with minimal voltage headroom loss. Use Value: Low RθJL (13°C/W) allows direct mounting to aluminum PCBs, enabling passive thermal management in sealed luminaires. | Use Scenario: Input bridge or output rectification in DIN-rail mounted 24V/48V industrial PSUs. IC Role / Device Role / Timing Role: Primary rectifier in auxiliary bias supplies or secondary rectifier in main output stages. Use Value: –55°C to +125°C TJ range ensures stable operation in control cabinets with ambient temperatures up to 70°C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SS32H from Diodes Inc. | VRRM = 20V, IF = 3A, VF = 0.5V max @ 3A - higher forward voltage than SSL32HR7G | Suitable for cost-sensitive consumer adapters where 0.09V VF penalty is acceptable | Prefer SSL32HR7G when thermal margin or efficiency >90% is required |
| SB320 from ON Semiconductor | VRRM = 20V, IF = 3A, VF = 0.52V max @ 3A, RθJA = 65°C/W - higher thermal resistance | Better availability in legacy designs but less efficient under sustained load | Choose SSL32HR7G for new designs targeting lower board temperature rise |
Compared with SS32H and SB320, SSL32HR7G delivers the lowest forward voltage (≤0.41V) and best thermal resistance (RθJL = 13°C/W), making it optimal for thermally constrained, high-efficiency 3A rectification where junction temperature control is critical.
Availability
SSL32HR7G is available at Aetrix Electronics and suitable for AC-DC adapters, DC-DC converters, and industrial power supplies requiring stable component supply, halogen-free compliance, and high surge robustness.
Supply support for SSL32HR7G 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 and protection markets since 1979.
The SSL32HR7G belongs to TSC's SSL3x Schottky rectifier family, engineered specifically for high-efficiency, high-reliability secondary-side rectification in compact, thermally demanding power conversion systems.
FAQ
What is the maximum junction temperature rating for SSL32HR7G?
The SSL32HR7G has a maximum junction temperature (TJ) of +125°C and a minimum of –55°C. This rating is validated per absolute maximum ratings table and applies under continuous DC or pulsed forward current conditions within specified thermal limits. The SSL32HR7G must be mounted on appropriate PCB copper area to maintain TJ ≤ 125°C during operation.
Does SSL32HR7G have a lead-free and RoHS-compliant construction?
Yes, SSL32HR7G is RoHS-compliant and halogen-free, meeting EU Directive 2011/65/EU and IPC/JEDEC J-STD-020 moisture sensitivity level 1. Its matte tin-plated leads are solderable per J-STD-002, and the molding compound complies with UL 94V-0 flammability requirements. SSL32HR7G is fully qualified for lead-free reflow processes.
What is the forward voltage specification for SSL32HR7G at rated current?
The SSL32HR7G specifies a maximum forward voltage (VF) of 0.41 V at IF = 3 A and TJ = 25°C, measured using a 0.3 ms pulse width. This low VF is a key differentiator versus alternatives and directly reduces conduction losses in high-duty-cycle power stages where SSL32HR7G is deployed.
Is SSL32HR7G pin-compatible with other DO-214AB Schottky rectifiers?
SSL32HR7G uses the standard DO-214AB (SMC) package with anode and cathode terminals arranged per JEDEC outline. While mechanical footprint and polarity marking align with industry-standard SMC devices, electrical parameters (e.g., VF, IFSM) differ - always verify circuit-level compatibility before substituting SSL32HR7G into existing layouts.
What surge current rating does SSL32HR7G support, and under what conditions?
SSL32HR7G supports a non-repetitive peak forward surge current (IFSM) of 100 A, tested per 8.3 ms single half-sine wave per JESD22-A112. This rating applies at TA = 25°C and assumes proper PCB thermal design. The SSL32HR7G maintains integrity under repeated surge events only if average power dissipation remains within thermal limits defined by RθJA = 53°C/W.
SSL32HR7G 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):
- 20 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:
- 200 µA @ 20 V
- Capacitance @ Vr, F:
- -
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
- Operating Temperature - Junction:
- -55°C ~ 125°C
SSL32HR7G FAQ
1.How can I place an order for SSL32HR7G through Aetrix?
Please submit a Request for Quotation (RFQ) for SSL32HR7G 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 SSL32HR7G reliable?
The price and inventory of SSL32HR7G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SSL32HR7G is usually 5 days.
3.What payment methods are accepted for SSL32HR7G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SSL32HR7G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SSL32HR7G?
SSL32HR7G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SSL32HR7G 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 SSL32HR7G?
For technical support, including SSL32HR7G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SSL32HR7G requirements.
6.How does Aetrix verify that SSL32HR7G is sourced from the original manufacturer or authorized distributors?
All SSL32HR7G 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 SSL32HR7G meets industry standards.
7.What is the process for return or replacement of SSL32HR7G?
All SSL32HR7G units undergo pre-shipment inspection (PSI). If there is an issue with SSL32HR7G, 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 SSL32HR7G part is unused and in its original packaging.
Return procedure for SSL32HR7G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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