My Inquiry
My Account
Taiwan Semiconductor Corporation SSL32 R7G
- Part No.:
- SSL32 R7G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SSL32 R7G.pdf
- Description:
- DIODE SCHOTTKY 20V 3A DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,332
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SSL32 R7G from Taiwan Semiconductor is a 3A, 20V repetitive peak reverse voltage Schottky barrier rectifier in DO-214AB (SMC) package, featuring 0.41V max forward voltage at 3A/25°C, 100A peak surge current, and junction temperature range of –55°C to +125°C; used in SMPS secondary-side rectification.
For engineers reviewing the SSL32 R7G datasheet, SSL32 R7G pinout, SSL32 R7G application, or SSL32 R7G equivalent, key selection criteria include low VF for efficiency-critical DC-DC outputs, SMC package thermal performance (RθJL = 13°C/W), and moisture sensitivity level 1 compliance for high-volume automated assembly.
Technical Context
This single-die Schottky rectifier operates with minimal conduction loss due to its low forward voltage drop and exhibits robust transient handling with 100A non-repetitive surge capability per 8.3ms half-sine waveform. Its guard ring structure provides overvoltage protection without external components.
Thermal design is supported by verified junction-to-lead resistance of 13°C/W on standard 16mm × 16mm Cu pad PCBs, enabling reliable operation up to 125°C junction temperature under continuous 3A DC load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 20 V - Maximum reverse blocking voltage before breakdown; defines usable input/output voltage margin in 12–15V output rails |
| IF | 3 A - Continuous forward current rating; supports typical 24W–36W secondary-side power delivery |
| VF (max) | 0.41 V @ 3A, 25°C - Low conduction loss reduces heat generation and improves system efficiency vs. silicon diodes |
| IFSM | 100 A - Peak surge withstand capability enables reliability during power-up transients and short-circuit events |
| RθJL | 13 °C/W - Verified thermal resistance from junction to lead; allows direct heatsinking via PCB copper pour |
| TJ max | +125 °C - Maximum operating junction temperature; sets upper limit for ambient + power dissipation design |
Pinout & Package
DO-214AB (SMC) surface-mount package with cathode-indicated band; matte tin-plated leads compliant with J-STD-002 solderability and JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input current terminal | Connected to transformer secondary or switching node; carries full load current into output capacitor |
| Cathode | Output current terminal | Connected to output rail; polarity marked by visible band; must be routed with low-inductance path |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring overvoltage protection | Integrated edge termination prevents premature avalanche failure under voltage transients |
| Moisture sensitivity level 1 | No bake requirement prior to reflow; compatible with standard SMT lines without dry-pack handling |
| Halogen-free & RoHS compliant | Meets environmental regulations for consumer, industrial, and lighting applications |
| High surge current capability | Withstands 100A peak for 8.3ms-supports robustness in unregulated or lightly loaded converter conditions |
Applications
| SMPS Secondary Rectification | AC-DC Adapter Output Stage |
|---|---|
Use Scenario: High-efficiency 12V/3A output stage in offline flyback converters. IC Role / Device Role / Timing Role: Schottky rectifier replacing fast recovery diode to reduce conduction loss. Use Value: 0.41V VF lowers power loss by ~0.5W vs. 0.7V Si diode, improving thermal margin and efficiency. | Use Scenario: Compact wall-mounted adapter delivering 5–19V DC for consumer electronics. IC Role / Device Role / Timing Role: Output rectifier in quasi-resonant flyback topology. Use Value: DO-214AB footprint enables high-density layout; level-1 MSL simplifies manufacturing flow. |
| LED Driver Secondary Side | DC-DC Buck Converter Output |
Use Scenario: Constant-current LED driver with 24V output driving multiple series strings. IC Role / Device Role / Timing Role: Freewheeling rectifier in isolated forward or flyback LED driver. Use Value: 125°C TJ max supports operation in thermally constrained enclosed fixtures. | Use Scenario: 3.3V/3A point-of-load buck converter in embedded control module. IC Role / Device Role / Timing Role: Synchronous rectifier replacement in low-VOUT designs where gate drive complexity is avoided. Use Value: Low VF minimizes dropout and maintains regulation under load step conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay SS32HE3/57T | Same 20V VRRM, 3A IF, but VF = 0.52V (max) at 3A; DO-214AB package | Higher forward drop increases conduction loss by ~0.33W at full load | Prefer SSL32 R7G where thermal headroom or efficiency >90% is critical |
| ON Semiconductor SB320-E3/54 | 20V VRRM, 3A IF, VF = 0.5V (max); same DO-214AB, but MSL level 2 | Requires baking before reflow; slightly higher VF impacts light-load efficiency | SSL32 R7G preferred for no-bake production and lower-loss requirements |
Compared with SS32HE3/57T and SB320-E3/54, SSL32 R7G delivers the lowest confirmed VF (0.41V) among 20V/3A SMC Schottkys, with MSL 1 qualification eliminating process steps and supporting higher throughput in automated assembly.
Availability
SSL32 R7G is available at Aetrix Electronics and suitable for switching mode power supplies, AC-DC adapters, and LED lighting drivers requiring stable component supply and high-volume tape-and-reel delivery.
Supply support for SSL32 R7G 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 SSL32 R7G belongs to TSC's SSL3x Schottky rectifier family, engineered specifically for high-efficiency, high-reliability secondary-side rectification in compact, cost-sensitive power conversion systems.
FAQ
What is the maximum junction temperature rating for SSL32 R7G?
The SSL32 R7G has a maximum junction temperature (TJ) rating of +125°C, verified per absolute maximum ratings table. This allows continuous operation at full 3A load in ambient temperatures up to ~85°C when mounted on a standard 16mm × 16mm Cu pad PCB, given its RθJL of 13°C/W. Exceeding this limit risks parametric shift or long-term reliability degradation in the SSL32 R7G.
Does SSL32 R7G have a cathode marking, and how is polarity identified?
Yes, SSL32 R7G uses a visible cathode band on the molded body to indicate polarity, consistent with DO-214AB mechanical standards. The band aligns with the cathode terminal, which must connect to the positive output rail. This marking is laser-etched or molded and remains legible after reflow, ensuring correct orientation during automated placement and manual inspection of the SSL32 R7G.
Is SSL32 R7G suitable for use in RoHS-compliant and halogen-free designs?
Yes, SSL32 R7G is certified RoHS compliant and halogen-free per manufacturer documentation. Its molding compound, lead finish, and internal construction meet JEDEC and IEC 61249-2-21 requirements. This makes the SSL32 R7G appropriate for consumer, industrial, and lighting products targeting EU WEEE, China RoHS, and other regional environmental compliance mandates.
What is the moisture sensitivity level (MSL) of SSL32 R7G, and what does it mean for assembly?
The SSL32 R7G is rated MSL Level 1 per J-STD-020, meaning it may be stored indefinitely at ≤30°C/60% RH and requires no baking prior to surface-mount reflow. This eliminates pre-bake steps, reduces floor life constraints, and supports uninterrupted high-speed placement-critical for contract manufacturers using the SSL32 R7G in volume production of power supplies and adapters.
How does the forward voltage of SSL32 R7G compare to similar 20V Schottky rectifiers?
SSL32 R7G specifies a maximum forward voltage of 0.41V at 3A and 25°C-lower than industry-standard alternatives like SB320-E3/54 (0.5V) and SS32HE3/57T (0.52V). This 0.09–0.11V advantage directly reduces conduction loss by ~0.3–0.33W at full load, improving thermal performance and efficiency in the SSL32 R7G without changing layout or cooling strategy.
SSL32 R7G 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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
- Operating Temperature - Junction:
- -55°C ~ 125°C
SSL32 R7G FAQ
1.How can I place an order for SSL32 R7G through Aetrix?
Please submit a Request for Quotation (RFQ) for SSL32 R7G 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 SSL32 R7G reliable?
The price and inventory of SSL32 R7G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SSL32 R7G is usually 5 days.
3.What payment methods are accepted for SSL32 R7G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SSL32 R7G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SSL32 R7G?
SSL32 R7G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SSL32 R7G 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 SSL32 R7G?
For technical support, including SSL32 R7G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SSL32 R7G requirements.
6.How does Aetrix verify that SSL32 R7G is sourced from the original manufacturer or authorized distributors?
All SSL32 R7G 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 SSL32 R7G meets industry standards.
7.What is the process for return or replacement of SSL32 R7G?
All SSL32 R7G units undergo pre-shipment inspection (PSI). If there is an issue with SSL32 R7G, 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 SSL32 R7G part is unused and in its original packaging.
Return procedure for SSL32 R7G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SSL32 R7G Tags
-
1N4448X-TP
Micro Commercial Co
-
1N4148WX-TP
Micro Commercial Co
-
1N4148TR
onsemi
-
MMSD4148T1G
onsemi
-
MMBD914LT3G
onsemi
-
BAS16HT1G
onsemi
-
1N914BWT
onsemi
-
BAS21LT1G
onsemi
-
LL4148
onsemi
-
BAS16LT1G
onsemi
-
MMSD914T1G
onsemi
-
BAV21W-7-F
Diodes Incorporated
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
