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Taiwan Semiconductor Corporation S4M R7G
- Part No.:
- S4M R7G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
S4M R7G.pdf
- Description:
- DIODE GEN PURP 1KV 4A DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:6,288
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Product details
Overview
S4M R7G from Taiwan Semiconductor is a 4A, 1000V surface-mount silicon rectifier diode in DO-214AB (SMC) package, featuring glass-passivated junction, 1.15V max forward voltage at 4A/25°C, 100A peak surge current, and 150°C max junction temperature - used in high-voltage AC/DC front-end stages of industrial SMPS and lighting converters.
For engineers reviewing the S4M R7G datasheet, S4M R7G pinout, S4M R7G application, or S4M R7G equivalent, key selection criteria include verified VRRM = 1000V, IFSM = 100A, VF ≤ 1.15V @ 4A, TJ max = 150°C, and DO-214AB mechanical compatibility with automated SMT lines.
Technical Context
This is a single-die, standard-recovery silicon rectifier optimized for high-voltage, medium-current switching power conversion. It employs glass passivation for junction reliability and supports J-STD-020 Level 1 moisture sensitivity handling without baking prior to reflow.
Thermal performance is defined by RθJL = 13°C/W and RθJA = 47°C/W; reverse recovery time trr = 1500 ns under IF = 0.5A / IR = 1.0A / Irr = 0.25A conditions, confirming non-ultrafast but robust line-frequency and quasi-resonant operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 1000 V - maximum repetitive reverse voltage the device blocks reliably in circuit |
| IF | 4 A - continuous average forward current rating at TA = 25°C with adequate heatsinking |
| IFSM | 100 A - non-repetitive surge current capability for 8.3 ms half-sine, critical for inrush protection |
| VF | ≤1.15 V @ 4A, 25°C - low conduction loss enabling >92% efficiency in 100–1000V output SMPS designs |
| TJ max | 150 °C - maximum allowable junction temperature, supporting operation in enclosed industrial enclosures |
| trr | 1500 ns - reverse recovery time defining switching speed limit in hard-switched topologies |
| RθJL | 13 °C/W - thermal resistance from junction to lead, enabling direct PCB copper pour cooling |
Pinout & Package
DO-214AB (SMC) surface-mount package with cathode-indicating band; matte tin-plated leads compliant with J-STD-002 solderability and JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (lead 1) | Input terminal for AC or positive-side connection | Accepts incoming AC phase or high-side DC input; rated for full 1000V reverse blocking when cathode is biased higher |
| Cathode (lead 2) | Output terminal with polarity marking band | Delivers rectified output; band orientation enables automated optical inspection and placement verification on SMT lines |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable long-term reverse leakage (<10 µA @ 25°C, <250 µA @ 125°C) and humidity resistance per J-STD-020 Level 1 |
| Low VF (≤1.15 V @ 4A) | Reduces conduction loss by ~15% vs. comparable 1000V rectifiers, lowering thermal stress in compact adapters |
| 100A IFSM rating | Supports cold-start surges in 200–500W industrial PSUs without derating or parallel devices |
| DO-214AB mechanical outline | Standardized footprint compatible with existing SMC land patterns and pick-and-place nozzles across global EMS providers |
| Halogen-free & RoHS | Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for environmentally regulated end equipment |
Applications
| Industrial SMPS Front-End | LED Driver Input Stage |
|---|---|
Use Scenario: Rectifying 230VAC mains input in 300–600W open-frame industrial power supplies. IC Role / Device Role / Timing Role: Primary AC-to-DC conversion element; operates at line frequency with minimal conduction loss. Use Value: 1000V VRRM ensures margin against 230VAC + 100% transients; 4A IF rating supports continuous 400W output with forced air cooling. | Use Scenario: Input bridge rectification in constant-current LED drivers for street lighting and high-bay fixtures. IC Role / Device Role / Timing Role: High-voltage rectifier in passive PFC or basic buck-derived topologies. Use Value: 150°C TJ max allows operation inside thermally constrained outdoor enclosures; glass passivation prevents degradation under humid conditions. |
| AC/DC Adapter Secondary | DC-DC Converter Input Protection |
Use Scenario: Output rectification in universal-input (90–264VAC), 65W laptop adapters. IC Role / Device Role / Timing Role: Secondary-side freewheeling/rectifying diode in flyback topology. Use Value: 1.15V VF minimizes heat generation in sealed plastic housings; DO-214AB footprint simplifies layout and thermal pad routing. | Use Scenario: Reverse-polarity and overvoltage clamp in 24/48V DC-DC converter inputs for factory automation modules. IC Role / Device Role / Timing Role: Standby protection diode placed before primary controller IC. Use Value: 100A IFSM withstands accidental battery reverse-connection events; cathode band enables unambiguous orientation during manual repair. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH4L06S | VRRM = 600V, VF = 1.15V @ 4A, trr = 65 ns - ultrafast recovery, lower voltage rating | Better suited for high-frequency PFC stages; insufficient for 1000V line-transient protection | Select only if operating below 400V RMS input and requiring faster switching |
| VS-4EWH06F | VRRM = 600V, VF = 1.05V @ 4A, trr = 125 ns - optimized for efficiency in 600V systems | Lacks margin for 1000V-rated industrial designs; superior conduction loss at lower voltages | Prefer for cost-sensitive 277VAC commercial lighting where 600V rating suffices |
Compared with STTH4L06S and VS-4EWH06F, the S4M R7G uniquely delivers 1000V blocking with industrial-grade surge and thermal robustness - making it the only option among the three qualified for 230VAC+100% surge environments without series stacking.
Availability
S4M R7G is available at Aetrix Electronics and suitable for industrial SMPS, LED driver input stages, AC/DC adapters, and DC-DC converter input protection requiring stable component supply across multi-year production cycles.
Supply support for S4M 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 industrial, computing, and consumer markets since 1979.
The S4A–S4M series was designed specifically for high-reliability, high-voltage AC/DC rectification in cost-sensitive yet thermally demanding applications - emphasizing ruggedness, manufacturability, and compliance with global environmental standards.
FAQ
What is the maximum repetitive peak reverse voltage (VRRM) for the S4M R7G?
The S4M R7G has a VRRM rating of 1000 V, confirmed in the Absolute Maximum Ratings table of the official Taiwan Semiconductor datasheet (Version K2102). This value defines the highest reverse voltage the S4M R7G can block repeatedly without breakdown under normal operating conditions and provides design margin against line transients in 230VAC systems.
Does the S4M R7G meet RoHS and halogen-free requirements?
Yes, the S4M R7G is RoHS compliant and halogen-free per IEC 61249-2-21, as explicitly stated in the FEATURES section of the Taiwan Semiconductor documentation. These compliance attributes are verified for the DO-214AB (SMC) packaged S4M R7G and apply to all units shipped under standard ordering code S4M R7G.
What is the forward voltage drop (VF) specification for the S4M R7G at rated current?
The S4M R7G exhibits a maximum forward voltage drop of 1.15 V at IF = 4 A and TJ = 25°C, per the Electrical Specifications table. This VF value is measured under pulsed conditions (PW = 0.3 ms) and represents the upper limit for conduction loss - critical for thermal design in compact power supplies using the S4M R7G.
Is the S4M R7G suitable for automated SMT assembly?
Yes, the S4M R7G is explicitly designed for automated placement, as noted in its FEATURES list. Its DO-214AB (SMC) package, matte tin-plated leads (solderable per J-STD-002), and J-STD-020 Level 1 moisture sensitivity allow direct placement into standard reflow profiles without pre-baking - a key qualification for high-volume SMT lines using the S4M R7G.
What is the peak forward surge current (IFSM) rating for the S4M R7G?
The S4M R7G is rated for a non-repetitive peak forward surge current (IFSM) of 100 A for an 8.3 ms single half-sine wave, as specified in the Absolute Maximum Ratings table. This rating ensures the S4M R7G can survive cold-start inrush currents in industrial power supplies and lighting ballasts without failure.
S4M 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):
- 4A
- Voltage - Forward (Vf) (Max) @ If:
- 1.15 V @ 4 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
S4M R7G FAQ
1.How can I place an order for S4M R7G through Aetrix?
Please submit a Request for Quotation (RFQ) for S4M 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 S4M R7G reliable?
The price and inventory of S4M R7G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S4M R7G is usually 5 days.
3.What payment methods are accepted for S4M R7G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S4M R7G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S4M R7G?
S4M R7G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S4M 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 S4M R7G?
For technical support, including S4M R7G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S4M R7G requirements.
6.How does Aetrix verify that S4M R7G is sourced from the original manufacturer or authorized distributors?
All S4M 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 S4M R7G meets industry standards.
7.What is the process for return or replacement of S4M R7G?
All S4M R7G units undergo pre-shipment inspection (PSI). If there is an issue with S4M 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 S4M R7G part is unused and in its original packaging.
Return procedure for S4M R7G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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