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Taiwan Semiconductor Corporation S1K R3G
- Part No.:
- S1K R3G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
S1K R3G.pdf
- Description:
- DIODE GEN PURP 800V 1A DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:5,021
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Product details
Overview
S1K R3G from Taiwan Semiconductor is a 1 A, 800 V surface-mount silicon rectifier diode in DO-214AC (SMA) package, featuring glass-passivated junction, 1.1 V max forward voltage at 1 A, 1 µA max reverse leakage at 25°C, and 1500 ns reverse recovery time - used in snubber networks and DC-DC converter output stages.
For engineers reviewing the S1K R3G datasheet, S1K R3G pinout, S1K R3G application, or S1K R3G equivalent, key selection criteria include peak repetitive reverse voltage (800 V), thermal resistance (30 °C/W junction-to-lead), moisture sensitivity level (J-STD-020 Level 1), RoHS/halogen-free compliance, and DO-214AC mechanical compatibility with automated placement.
Technical Context
The S1K R3G is a single-die, standard-recovery silicon rectifier optimized for general-purpose switching applications where moderate speed and high voltage blocking are required. It operates across -55°C to +175°C junction temperature range and supports 40 A non-repetitive surge current (8.3 ms half-sine).
Its 1500 ns reverse recovery time and 12 pF junction capacitance at 4 V bias indicate suitability for low-to-moderate frequency (<100 kHz) power conversion, not high-frequency synchronous rectification. Thermal performance is defined by RθJL = 30 °C/W and RθJA = 85 °C/W under standard mounting conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 800 V - maximum repetitive reverse voltage the device blocks without breakdown |
| IF | 1 A continuous - average forward current rating at TL = 75°C per JEDEC standards |
| VF (max) | 1.1 V @ 1 A, 25°C - determines conduction loss in series with load or output filter |
| IR (max) | 1 µA @ 800 V, 25°C - defines leakage-induced standby power loss in high-impedance circuits |
| trr | 1500 ns - limits usable switching frequency and influences snubber sizing in flyback/forward topologies |
| RθJL | 30 °C/W - quantifies thermal path efficiency from junction to lead; critical for PCB copper pour design |
| Moisture Sensitivity | Level 1 (J-STD-020) - no bake required before reflow; compatible with standard SMT assembly lines |
Pinout & Package
Package: DO-214AC (SMA), molded epoxy case with matte tin-plated leads, polarity indicated by cathode band, weight ≈ 0.060 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side of circuit (e.g., transformer secondary center-tap or switch node) |
| Cathode | Forward current exit point | Connected to output rail or filter capacitor positive; marked by visible band on body |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable long-term reliability and reduced surface leakage under humid or contaminated environments |
| Junction temperature range | -55°C to +175°C - supports operation in automotive under-hood and industrial motor drive ambient conditions |
| RoHS & halogen-free compliance | Meets IEC 61249-2-21 and EU RoHS directives - required for export to EU, China, and Korea markets |
| Automated placement compatibility | DO-214AC footprint and tape-and-reel packaging (7500/reel) enable direct integration into high-volume SMT lines |
Applications
| DC–DC Converter Output Rectification | Snubber Network Clamping |
|---|---|
Use Scenario: Used as output rectifier in isolated flyback or forward converters delivering 5–24 V at ≤1 A. IC Role / Device Role / Timing Role: Unidirectional current valve converting transformer AC output to regulated DC; handles 800 V transient spikes during MOSFET turn-off. Use Value: 1.1 V VF minimizes conduction loss at 1 A; 40 A IFSM withstands startup surges without degradation. | Use Scenario: Placed across switching FET or transformer primary to absorb inductive kick energy. IC Role / Device Role / Timing Role: Voltage-clamping element that conducts only during overvoltage transients, limiting peak stress on active devices. Use Value: 800 V VRRM ensures safe clamping margin above nominal bus voltage; 1500 ns trr avoids premature turn-on during fast-rising edges. |
| Lighting Ballast Circuits | Industrial Power Supply Input Stage |
Use Scenario: Rectifying AC line input in LED driver front-end for streetlight or high-bay fixtures. IC Role / Device Role / Timing Role: Single-phase bridge leg component providing unidirectional current path before bulk capacitor filtering. Use Value: 175°C TJMAX enables reliable operation in thermally constrained enclosed housings; UL 94V-0 molding compound resists flame propagation. | Use Scenario: Input rectification in 24/48 V industrial SMPS powering PLC I/O modules or sensors. IC Role / Device Role / Timing Role: General-purpose AC/DC conversion stage handling universal input (85–265 VAC) with margin for line surges. Use Value: 1 µA IR at 25°C reduces no-load power draw; J-STD-020 Level 1 rating eliminates pre-reflow baking steps. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor MUR180 | Ultrafast recovery (75 ns), higher VF (1.7 V), same 1 A/800 V rating | Better suited for higher-frequency (>100 kHz) PFC or resonant converters | Select when faster switching and lower EMI outweigh conduction loss penalty |
| Vishay VS-1N4007-M3/54 | Standard recovery (30 µs), 1 A/1000 V, axial DO-41 package | Requires through-hole assembly; unsuitable for automated SMT production | Choose only for legacy repair or low-volume prototyping with manual soldering |
Compared with MUR180 and VS-1N4007-M3/54, the S1K R3G offers optimal balance of cost, SMT compatibility, and thermal robustness for mid-frequency industrial and lighting converters - neither ultrafast nor legacy axial, but purpose-fit for DO-214AC-based production.
Availability
S1K R3G is available at Aetrix Electronics and suitable for DC–DC converters, snubber networks, LED lighting ballasts, and industrial power supply input stages requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for S1K R3G 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 industrial, computing, and consumer markets since 1979.
The S1K R3G belongs to TSC's S1A–S1M surface-mount rectifier family, engineered for cost-effective, high-reliability AC/DC and DC/DC power conversion in space-constrained, high-volume applications.
FAQ
What is the maximum junction temperature rating for the S1K R3G?
The S1K R3G has a maximum junction temperature (TJMAX) of +175°C, enabling operation in high-ambient environments such as enclosed LED drivers or industrial motor control enclosures. This rating is validated per JEDEC test conditions and must be maintained via proper PCB thermal design using the specified RθJL = 30 °C/W path. Derating curves in the S1K R3G datasheet define safe current limits above 75°C lead temperature.
Does the S1K R3G meet RoHS and halogen-free requirements?
Yes, the S1K R3G is RoHS compliant and halogen-free per IEC 61249-2-21. These certifications are confirmed in Taiwan Semiconductor's official documentation and verified through material declarations. The device uses matte tin-plated leads and UL 94V-0 compliant molding compound, making it suitable for export to EU, China, and other regulated markets without restriction.
What is the reverse recovery time (trr) of the S1K R3G, and how does it affect circuit design?
The S1K R3G has a reverse recovery time (trr) of 1500 ns, measured at IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A. This value indicates standard recovery behavior, suitable for ≤100 kHz switching topologies. Designers must size snubbers accordingly and avoid use in high-frequency ZVS or resonant converters where faster diodes like ultrafast or Schottky types are required. The S1K R3G datasheet provides test circuit details in Figure 6.
Is the S1K R3G pin-compatible with other DO-214AC rectifiers like the 1N4007S?
No - while both S1K R3G and 1N4007S use DO-214AC (SMA) packages, they differ in voltage rating (800 V vs. 1000 V), forward voltage (1.1 V vs. ~1.1 V typical), and reverse recovery time (1500 ns vs. ~30 µs). More critically, marking codes and internal die construction vary; direct substitution requires validation of surge capability, thermal derating, and layout clearance. Always verify against the S1K R3G datasheet before replacement.
What packaging format is available for the S1K R3G?
The S1K R3G is supplied in 7,500-unit tape-and-reel format per the ordering code S1K R3G, conforming to EIA-481 standards. The reel includes moisture barrier bagging and desiccant per J-STD-020 Level 1 requirements - no baking is needed prior to reflow. This packaging supports high-speed pick-and-place machines and ensures consistent orientation (cathode band facing outward) for automated assembly of the S1K R3G.
S1K R3G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-214AC, SMA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 800 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 1 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 1.5 µs
- Current - Reverse Leakage @ Vr:
- 1 µA @ 800 V
- Capacitance @ Vr, F:
- 12pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
- Operating Temperature - Junction:
- -55°C ~ 175°C
S1K R3G FAQ
1.How can I place an order for S1K R3G through Aetrix?
Please submit a Request for Quotation (RFQ) for S1K R3G 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 S1K R3G reliable?
The price and inventory of S1K R3G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S1K R3G is usually 5 days.
3.What payment methods are accepted for S1K R3G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S1K R3G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S1K R3G?
S1K R3G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S1K R3G 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 S1K R3G?
For technical support, including S1K R3G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S1K R3G requirements.
6.How does Aetrix verify that S1K R3G is sourced from the original manufacturer or authorized distributors?
All S1K R3G 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 S1K R3G meets industry standards.
7.What is the process for return or replacement of S1K R3G?
All S1K R3G units undergo pre-shipment inspection (PSI). If there is an issue with S1K R3G, 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 S1K R3G part is unused and in its original packaging.
Return procedure for S1K R3G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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