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Taiwan Semiconductor Corporation S3M R7G
- Part No.:
- S3M R7G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
S3M R7G.pdf
- Description:
- DIODE GEN PURP 1KV 3A DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:36
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Product details
Overview
S3M R7G from Taiwan Semiconductor is a 3A, 1000V surface-mount silicon rectifier diode in DO-214AB (SMC) package, featuring 1.15V max forward voltage at 3A/25°C, 100A non-repetitive surge capability, and 150°C maximum junction temperature. It serves as the primary output rectifier in high-voltage AC/DC converters for industrial power supplies.
For engineers reviewing the S3M R7G datasheet, S3M R7G pinout, S3M R7G application, or S3M R7G equivalent, key selection criteria include repetitive peak reverse voltage (1000V), thermal resistance (13°C/W junction-to-lead), reverse recovery time (1500ns), and moisture sensitivity level (J-STD-020 Level 1).
Technical Context
This single-die standard recovery rectifier uses glass-passivated junction technology to ensure stable reverse leakage (<10µA at 25°C, <250µA at 125°C) and robust surge handling (100A @ 8.3ms). Its DO-214AB package enables automated placement and meets UL 94V-0 flammability rating.
The device operates across -55°C to +150°C junction temperature range with 47°C/W junction-to-ambient thermal resistance. Reverse recovery time of 1500ns reflects its suitability for medium-frequency switching applications up to ~20kHz, not ultra-fast or RF use cases.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 1000 V - Maximum repetitive reverse blocking voltage; defines safe operating ceiling in high-voltage DC bus designs |
| IF | 3 A - Continuous average forward current; determines heatsink sizing under steady-state conduction |
| IFSM | 100 A - Non-repetitive surge current (8.3ms); supports inrush tolerance during cold-start of SMPS |
| VF | ≤1.15 V - Max forward voltage at 3A/25°C; directly impacts conduction loss and thermal load in rectification stage |
| RθJL | 13 °C/W - Junction-to-lead thermal resistance; enables direct PCB copper pour thermal coupling without external heatsink |
| trr | 1500 ns - Reverse recovery time; limits usable switching frequency and influences snubber design in flyback/forward topologies |
Pinout & Package
DO-214AB (SMC) surface-mount package with matte tin-plated leads, cathode indicated by molded band. Weight: 0.210g. Meets JESD201 Class 2 whisker resistance and J-STD-020 Level 1 moisture sensitivity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to transformer secondary or input bridge output; requires adequate trace width for 3A continuous current |
| Cathode | Forward current exit / reverse voltage reference | Marked by band; ties to output capacitor positive rail; critical for EMI filter grounding strategy |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable long-term reverse leakage performance and humidity resistance in unsealed industrial enclosures |
| Low VF (≤1.15V) | Reduces conduction loss by ~15% vs. comparable 1000V rectifiers, lowering thermal stress on adjacent MOSFETs and capacitors |
| J-STD-020 Level 1 MSL | Allows indefinite floor life before reflow; eliminates bake-out requirement and simplifies SMT line logistics |
| UL 94V-0 molding compound | Meets flame-retardancy requirements for Class I/II power supplies without additional potting or shielding |
Applications
| Industrial SMPS Output Rectification | LED Driver Secondary Side |
|---|---|
Use Scenario: High-efficiency 100–500W open-frame power supply for PLC controllers and motor drives. IC Role / Device Role / Timing Role: Primary output rectifier converting transformer secondary AC to regulated DC bus. Use Value: 1000V VRRM provides 2× safety margin over 400VDC nominal bus, while 13°C/W RθJL allows direct copper pour cooling without heatsink. | Use Scenario: Constant-current LED driver for high-bay industrial lighting operating from 277VAC mains. IC Role / Device Role / Timing Role: Secondary-side freewheeling and rectification element in flyback topology. Use Value: 1500ns trr aligns with typical 65–100kHz flyback frequencies; low VF minimizes heat generation in thermally constrained lamp housings. |
| AC-DC Adapter Front-End | DC-DC Converter Input Stage |
Use Scenario: Universal-input (90–264VAC) adapter for medical auxiliary equipment requiring reinforced isolation. IC Role / Device Role / Timing Role: Bridge rectifier output diode in voltage-doubler or full-wave configuration. Use Value: 100A IFSM withstands 2× inrush surges during cold start; RoHS/halogen-free compliance meets IEC 60601-1 environmental requirements. | Use Scenario: 48V-to-12V isolated DC-DC module for telecom shelf management systems. IC Role / Device Role / Timing Role: Input rectifier feeding active clamp forward converter primary side. Use Value: 150°C TJMAX supports operation in sealed chassis with ambient up to 85°C; DO-214AB footprint ensures compatibility with legacy layout libraries. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-3EWH10 | Same 1000V VRRM, 3A IF, but TO-220AC package (not SMD); higher RθJA (50°C/W) | Requires through-hole assembly and external heatsink; unsuitable for dense SMT layouts | Select only when board-level reflow constraints prohibit SMD or when mechanical mounting demands screw terminals |
| ON Semiconductor MUR3100CT | 1000V, dual common-cathode configuration; faster trr (75ns) but higher VF (1.7V) | Designed for high-frequency PFC stages; higher conduction loss reduces efficiency in low-frequency rectification | Prefer for boost PFC where speed matters; avoid for output rectification where VF dominates loss budget |
Compared with VS-3EWH10 and MUR3100CT, the S3M R7G delivers optimal balance of SMD manufacturability, thermal coupling via RθJL=13°C/W, and low conduction loss-making it preferred for space-constrained, medium-frequency industrial SMPS output stages where reliability and ease of assembly are prioritized over ultra-fast switching.
Availability
S3M R7G is available at Aetrix Electronics and suitable for industrial SMPS output rectification, LED driver secondary-side circuits, and AC-DC adapter front-end designs requiring stable component supply and long-term production continuity.
Supply support for S3M 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, specializing in power rectifiers, TVS diodes, and MOSFETs since 1992.
The S3A–S3M series was designed specifically for cost-sensitive, high-reliability industrial power conversion applications demanding robust surge immunity, extended temperature operation, and J-STD-020 Level 1 assembly compatibility.
FAQ
What is the maximum junction temperature rating for the S3M R7G?
The S3M R7G has a maximum junction temperature (TJMAX) of +150°C, verified per absolute maximum ratings table in the official Taiwan Semiconductor datasheet O2301. This rating allows reliable operation in enclosed industrial environments where ambient temperatures reach 85°C and PCB copper acts as the primary heatsink. The S3M R7G must be derated linearly above 25°C ambient per the forward current derating curve shown in Figure 1.
Does the S3M R7G have a halogen-free and RoHS-compliant construction?
Yes, the S3M R7G is explicitly stated as RoHS compliant and halogen-free in the official Taiwan Semiconductor documentation (Version O2301, Page 1). The molding compound contains no brominated flame retardants, and lead content complies with EU Directive 2011/65/EU. This makes the S3M R7G suitable for export to EU, Japan, and other regulated markets requiring full substance compliance declarations.
What is the reverse recovery time (trr) specification for the S3M R7G?
The S3M R7G has a reverse recovery time (trr) of 1500 ns, measured under conditions of IF = 0.5A, IR = 1.0A, and Irr = 0.25A, as specified in the Electrical Specifications table (Page 2, O2301). This value confirms its classification as a standard recovery rectifier-not ultrafast-and defines its upper operational frequency limit in switch-mode topologies using the S3M R7G.
Is the S3M R7G compatible with lead-free reflow soldering processes?
Yes, the S3M R7G features matte tin-plated leads qualified per J-STD-002 for solderability and is rated J-STD-020 Level 1 for moisture sensitivity-meaning it can be placed directly onto PCBs and subjected to standard IPC/JEDEC lead-free reflow profiles (peak 260°C) without baking. No pre-conditioning is required prior to SMT assembly of the S3M R7G.
How does the S3M R7G differ from the S3J or S3K variants in the same family?
The S3M R7G differs from S3J and S3K solely in its rated repetitive peak reverse voltage: S3M = 1000V, S3J = 600V, S3K = 800V. All share identical package (DO-214AB), forward current (3A), surge rating (100A), thermal resistance (13°C/W), and electrical characteristics except VRRM and related parameters (e.g., VR(RMS)). The "R7G" marking denotes tape-and-reel packaging (3000 pcs) and green compound, not a functional variant of the S3M R7G.
S3M 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):
- 1000 V
- Current - Average Rectified (Io):
- 3A
- Voltage - Forward (Vf) (Max) @ If:
- 1.15 V @ 3 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 10 µA @ 1000 V
- Capacitance @ Vr, F:
- 60pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
- Operating Temperature - Junction:
- -55°C ~ 150°C
S3M R7G FAQ
1.How can I place an order for S3M R7G through Aetrix?
Please submit a Request for Quotation (RFQ) for S3M 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 S3M R7G reliable?
The price and inventory of S3M R7G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S3M R7G is usually 5 days.
3.What payment methods are accepted for S3M R7G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S3M R7G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S3M R7G?
S3M R7G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S3M 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 S3M R7G?
For technical support, including S3M R7G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S3M R7G requirements.
6.How does Aetrix verify that S3M R7G is sourced from the original manufacturer or authorized distributors?
All S3M 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 S3M R7G meets industry standards.
7.What is the process for return or replacement of S3M R7G?
All S3M R7G units undergo pre-shipment inspection (PSI). If there is an issue with S3M 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 S3M R7G part is unused and in its original packaging.
Return procedure for S3M R7G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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