My Inquiry
My Account
Taiwan Semiconductor Corporation S3B R7G
- Part No.:
- S3B R7G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
S3B R7G.pdf
- Description:
- DIODE GEN PURP 100V 3A DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,209
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
S3B R7G from Taiwan Semiconductor is a 3A, 100V surface-mount silicon rectifier diode in DO-214AB (SMC) package, featuring 1.15V max forward voltage at 3A/25°C, 100A non-repetitive surge current, and 150°C maximum junction temperature - used in AC/DC front-end rectification for offline SMPS and LED drivers.
For engineers reviewing the S3B R7G datasheet, S3B R7G pinout, S3B R7G application, or S3B R7G equivalent, key selection criteria include repetitive peak reverse voltage (100V), thermal resistance (13°C/W junction-to-lead), reverse leakage (≤10µA at 25°C), and RoHS/halogen-free compliance for industrial power supply design.
Technical Context
This single-die standard recovery rectifier operates with a 1500ns reverse recovery time under IF = 0.5A / IR = 1.0A / Irr = 0.25A conditions and exhibits 60pF junction capacitance at 1MHz/4V. Its glass-passivated junction ensures stable performance across -55°C to +150°C ambient range.
The device supports automated placement per J-STD-020 Level 1 moisture sensitivity, uses matte tin-plated leads compliant with J-STD-002, and meets UL 94V-0 flammability rating in its molded plastic case - enabling reliable use in high-volume, thermally constrained power converters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - Maximum repetitive reverse blocking voltage before breakdown; defines safe AC input voltage headroom in bridge or single-phase rectifiers. |
| IF | 3 A - Continuous average forward current rating at TA = 25°C; determines heatsink sizing and derating curve usage in steady-state operation. |
| IFSM | 100 A - Peak non-repetitive surge current (8.3ms half-sine); enables survival during cold-start inrush in offline power supplies. |
| VF | ≤1.15 V - Max forward voltage drop at 3A/25°C; directly impacts conduction loss and thermal load in high-efficiency designs. |
| RθJL | 13 °C/W - Junction-to-lead thermal resistance; critical for estimating die temperature rise when mounted on PCB copper pour or heatsink. |
| trr | 1500 ns - Reverse recovery time under specified test conditions; influences switching loss and EMI in higher-frequency SMPS topologies. |
Pinout & Package
Package: DO-214AB (SMC) - surface-mount, molded plastic case with cathode band marking; dimensions 7.75 × 6.25 × 2.45 mm (L × W × H); weight ≈0.210 g; UL 94V-0 rated.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to AC input or transformer secondary; polarity must align with cathode band orientation on PCB layout. |
| Cathode | Forward current exit / reverse blocking terminal | Marked by visible band; ties to output capacitor positive or DC bus; defines direction of unidirectional conduction. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enhances long-term reliability and humidity resistance without requiring conformal coating in humid environments. |
| Low VF (≤1.15 V) | Reduces conduction loss by ~15% vs. comparable 3A rectifiers with VF >1.3V, improving efficiency in 12–24V output SMPS. |
| J-STD-020 Level 1 MSL | Eliminates bake-out requirement prior to reflow, supporting direct placement in high-speed SMT lines without moisture-related popcorning. |
| RoHS & halogen-free | Meets EU Directive 2011/65/EU and IEC 61249-2-21, enabling compliance in export-targeted industrial and lighting products. |
Applications
| AC/DC Adapter Rectification | LED Driver Input Stage |
|---|---|
Use Scenario: Converts 90–264V AC mains to pulsating DC in compact wall adapters for consumer electronics. IC Role / Device Role / Timing Role: Primary-side unidirectional conduction element in single-phase full-wave or voltage-doubler configurations. Use Value: 100V VRRM provides 2× safety margin over 264VAC peak (373V), while 3A IF supports up to 36W continuous output at 85% efficiency. | Use Scenario: Rectifies AC line input before PFC or buck/boost controller in commercial LED troffer and streetlight drivers. IC Role / Device Role / Timing Role: Front-end discrete rectifier handling 50/60Hz line frequency; not involved in high-frequency switching timing. Use Value: 100A IFSM withstands repeated cold-start surges from large bulk capacitors, extending system lifetime in outdoor-rated luminaires. |
| Industrial SMPS Input Bridge | DC-DC Converter Input Protection |
Use Scenario: One leg of a four-diode bridge rectifier in 24–48V industrial power supplies powering PLCs and sensors. IC Role / Device Role / Timing Role: Standard recovery rectifier operating at line frequency; no high-speed switching interaction. Use Value: DO-214AB package allows dense layout with 13°C/W RθJL enabling direct thermal coupling to copper pour, reducing need for external heatsinks. | Use Scenario: Reverse-polarity protection and input rectification in isolated DC-DC modules fed from 24V or 48V battery banks. IC Role / Device Role / Timing Role: Polarity enforcement and AC ripple suppression; placed upstream of primary-side controller IC. Use Value: ≤10µA IR at 25°C minimizes standby leakage, preserving battery charge in always-on remote monitoring systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar standard recovery rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH3L06S (STMicroelectronics) | Same 3A/100V rating; VF = 1.1V typ (slightly lower), trr = 120ns (much faster), DO-214AB package. | Better suited for higher-frequency flyback or resonant converters where fast recovery reduces switching loss. | Select if designing for >100kHz operation or needing lower conduction loss; verify layout compatibility with identical footprint. |
| ES3B (ON Semiconductor) | Same 3A/100V rating; VF = 1.15V max, trr = 500ns, DO-214AB package, AEC-Q101 qualified. | Designed for automotive-grade reliability; includes extended temperature validation and stress testing beyond industrial requirements. | Select for automotive body electronics or under-hood applications requiring qualification evidence and enhanced robustness. |
Compared with STTH3L06S and ES3B, the S3B R7G offers cost-optimized standard recovery performance with proven thermal stability and J-STD-020 Level 1 handling - ideal for high-volume industrial and lighting power supplies where 1500ns trr is acceptable and qualification overhead is unnecessary.
Availability
S3B R7G is available at Aetrix Electronics and suitable for AC/DC adapters, LED drivers, and industrial SMPS requiring stable component supply, consistent parametric performance, and RoHS-compliant manufacturing.
Supply support for S3B 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, industrial, and consumer markets since 1979.
The S3A–S3M series was designed specifically for cost-sensitive, high-reliability AC/DC front-end rectification - balancing thermal robustness, surge tolerance, and manufacturability in surface-mount power conversion systems.
FAQ
What is the maximum junction temperature rating for the S3B R7G?
The S3B R7G has a maximum junction temperature (TJ) rating of +150°C, verified per absolute maximum ratings table. This allows operation in high-ambient environments such as enclosed LED drivers or industrial enclosures. Derating begins above 25°C ambient per the forward current derating curve in the datasheet. The S3B R7G maintains stable electrical characteristics within this range when thermal design respects RθJL = 13°C/W.
Does the S3B R7G have a halogen-free and RoHS-compliant construction?
Yes, the S3B R7G is both RoHS compliant per EU Directive 2011/65/EU and halogen-free, as confirmed in the FEATURES section of the official Taiwan Semiconductor documentation. The molding compound and plating meet IEC 61249-2-21 requirements, making it suitable for environmentally regulated markets including Europe and North America.
What does the "R7G" suffix indicate in S3B R7G?
The "R7G" suffix in S3B R7G denotes Taiwan Semiconductor's internal date code and factory marking: "R7" indicates week 7 of year 2023 (or 2033), and "G" identifies the fabrication facility. It does not affect electrical specifications - all S3B devices share identical VRRM = 100V, IF = 3A, and thermal parameters regardless of suffix.
Can the S3B R7G replace the S3D in a 200V design?
No, the S3B R7G is not a functional replacement for the S3D in a 200V design. The S3B R7G has VRRM = 100V, while the S3D is rated for 200V. Using S3B R7G in a 200V application risks reverse breakdown and catastrophic failure. Always match VRRM to the peak reverse voltage seen in circuit - the S3B R7G is only validated for ≤100V applications.
Is the S3B R7G suitable for high-frequency switching applications?
The S3B R7G is a standard recovery rectifier with trr = 1500ns, making it unsuitable for high-frequency switching (e.g., >100kHz) where fast recovery or ultrafast diodes are required. It is optimized for 50/60Hz line-frequency rectification in SMPS, adapters, and lighting. For higher frequencies, consider alternatives like STTH3L06S (trr = 120ns) - the S3B R7G should be used only where its recovery time aligns with system timing constraints.
S3B 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:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 100 V
- Current - Average Rectified (Io):
- 3A
- Voltage - Forward (Vf) (Max) @ If:
- 1.15 V @ 3 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 1.5 µs
- Current - Reverse Leakage @ Vr:
- 5 µA @ 100 V
- Capacitance @ Vr, F:
- 30pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
- Operating Temperature - Junction:
- -55°C ~ 150°C
S3B R7G FAQ
1.How can I place an order for S3B R7G through Aetrix?
Please submit a Request for Quotation (RFQ) for S3B 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 S3B R7G reliable?
The price and inventory of S3B R7G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S3B R7G is usually 5 days.
3.What payment methods are accepted for S3B R7G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S3B R7G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S3B R7G?
S3B R7G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S3B 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 S3B R7G?
For technical support, including S3B R7G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S3B R7G requirements.
6.How does Aetrix verify that S3B R7G is sourced from the original manufacturer or authorized distributors?
All S3B 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 S3B R7G meets industry standards.
7.What is the process for return or replacement of S3B R7G?
All S3B R7G units undergo pre-shipment inspection (PSI). If there is an issue with S3B 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 S3B R7G part is unused and in its original packaging.
Return procedure for S3B R7G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
S3B 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…
