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Home > Products > Discrete Semiconductor Products > Diodes > Rectifiers > Single Diodes

Taiwan Semiconductor Corporation S8GC R7G

Name: S8GC R7G
Brand: Taiwan Semiconductor Corporation
SKU: S8GC R7G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: S8GC R7G

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: DO-214AB, SMC

Datasheet:: S8GC R7G.pdf

Description:: DIODE GEN PURP 400V 8A DO214AB

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Product details

Overview

S8GC R7G from Taiwan Semiconductor is a surface-mount silicon rectifier diode with 400 V repetitive peak reverse voltage (V_RRM), 8 A average forward current (I_F), and 200 A non-repetitive surge capability (I_FSM at 8.3 ms). It features glass-passivated junction, low 0.985 V forward voltage at 8 A/25°C, and DO-214AB (SMC) package - used in SMPS input rectification stages where high reliability and automated assembly are required.

For engineers reviewing the S8GC R7G datasheet, S8GC R7G pinout, S8GC R7G application, or S8GC R7G equivalent, key selection criteria include V_RRM = 400 V, I_F = 8 A, thermal resistance R_θJA = 44.0 °C/W, moisture sensitivity level 1, and RoHS/halogen-free compliance per IEC 61249-2-21.

Technical Context

The S8GC R7G is a single-die, standard recovery rectifier optimized for switching-mode power supply front-end rectification. Its glass-passivated junction ensures stable reverse leakage (<10 µA at 25°C, <250 µA at 125°C) and robust surge tolerance (200 A @ 8.3 ms, 600 A @ 1.0 ms).

Thermally, it delivers R_θJL = 12.5 °C/W (junction-to-lead) and R_θJA = 44.0 °C/W (junction-to-ambient), enabling operation up to T_J = 150°C. The DO-214AB (SMC) package supports automated placement and meets UL 94V-0 flammability and JESD201 Class 2 whisker resistance requirements.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	400 V - Maximum repetitive reverse voltage the device blocks without breakdown; defines usable input voltage range in AC-DC rectifiers.
I_F	8 A - Continuous average forward current rating at case temperature ≤ 75°C; determines heatsink sizing in 50/60 Hz or high-frequency rectifier designs.
I_FSM (8.3 ms)	200 A - Peak non-repetitive surge current handling; critical for surviving line transients and inrush events in offline SMPS.
V_F @ 8 A, 25°C	0.985 V max - Forward voltage drop directly impacts conduction loss and thermal design; enables >92% efficiency in 12 V output, 100 W adapters.
R_θJA	44.0 °C/W - Junction-to-ambient thermal resistance under standard PCB mounting; used to calculate maximum ambient temperature for safe I_F operation.
Moisture Sensitivity	Level 1 (per J-STD-020) - No floor life limitation or bake requirement before reflow; simplifies SMT manufacturing flow.
RoHS / Halogen-Free	Compliant per EU RoHS Directive and IEC 61249-2-21 - Meets environmental compliance for global industrial and consumer electronics shipments.

Pinout & Package

Package: DO-214AB (SMC), molded plastic case with matte tin-plated leads, cathode indicated by band. Weight ≈ 0.270 g.

Pin/Terminal	Circuit Role	Design Meaning
Anode (unmarked end)	Forward current entry point	Connected to AC input or transformer secondary; must withstand full surge current and reverse recovery stress.
Cathode (banded end)	Forward current exit / reverse blocking terminal	Connected to bulk capacitor positive rail; polarity marking prevents incorrect placement in high-voltage rectifier bridges.

Key Features

Feature	Design Value
Glass-passivated junction	Enables stable long-term reverse leakage performance and improved humidity resistance vs. epoxy-passivated alternatives.
Low V_F (0.985 V max @ 8 A)	Reduces conduction losses by ~15% compared to legacy 1.1 V rectifiers, lowering thermal load in compact adapters.
High I_FSM (600 A @ 1.0 ms)	Supports robust startup and fault tolerance in converters subjected to cold-start surges or lightning-induced transients.
DO-214AB (SMC) package	Standardized footprint compatible with automated pick-and-place; allows direct replacement of industry-standard 8 A rectifiers without layout change.
Moisture sensitivity level 1	Eliminates pre-bake steps and floor-life tracking, reducing SMT line downtime and process complexity.

Applications

AC-DC Adapters	LED Drivers
Use Scenario: 12–24 V, 30–60 W wall adapters for consumer electronics and IoT gateways. IC Role / Device Role / Timing Role: Input bridge rectifier converting 90–264 V_AC to pulsating DC prior to PFC or buck converter stage. Use Value: Low V_F minimizes heat generation in sealed enclosures; MSL Level 1 ensures zero reflow defects in high-volume adapter production.	Use Scenario: Constant-current LED drivers for commercial downlights and street lighting modules. IC Role / Device Role / Timing Role: Primary-side rectifier in flyback or buck-boost topologies operating at 50–100 kHz switching frequency. Use Value: 200 A surge rating handles lamp hot-swap events; DO-214AB footprint aligns with existing LED driver PCB layouts.
Industrial SMPS	DC-DC Converter Inputs
Use Scenario: 48 V output, 200–300 W industrial power supplies with wide-input-range (85–305 V_AC) capability. IC Role / Device Role / Timing Role: Bulk rectifier in voltage-doubler or full-wave bridge configuration feeding active clamp forward or LLC resonant controllers. Use Value: R_θJA = 44.0 °C/W enables derated operation up to 70°C ambient without forced air; 150°C T_J rating supports extended lifetime at elevated temperatures.	Use Scenario: Isolated DC-DC modules (e.g., 48 V to 12 V) used in telecom and datacom equipment. IC Role / Device Role / Timing Role: Secondary-side synchronous rectifier replacement in low-noise, high-efficiency isolated converters. Use Value: 48 pF junction capacitance limits EMI generation during turn-off; halogen-free construction satisfies IPC-J-STD-020 and RoHS traceability requirements.

AC-DC Adapters

LED Drivers

Use Scenario: 12–24 V, 30–60 W wall adapters for consumer electronics and IoT gateways.

IC Role / Device Role / Timing Role: Input bridge rectifier converting 90–264 V_AC to pulsating DC prior to PFC or buck converter stage.

Use Value: Low V_F minimizes heat generation in sealed enclosures; MSL Level 1 ensures zero reflow defects in high-volume adapter production.

Use Scenario: Constant-current LED drivers for commercial downlights and street lighting modules.

IC Role / Device Role / Timing Role: Primary-side rectifier in flyback or buck-boost topologies operating at 50–100 kHz switching frequency.

Use Value: 200 A surge rating handles lamp hot-swap events; DO-214AB footprint aligns with existing LED driver PCB layouts.

Industrial SMPS

DC-DC Converter Inputs

Use Scenario: 48 V output, 200–300 W industrial power supplies with wide-input-range (85–305 V_AC) capability.

IC Role / Device Role / Timing Role: Bulk rectifier in voltage-doubler or full-wave bridge configuration feeding active clamp forward or LLC resonant controllers.

Use Value: R_θJA = 44.0 °C/W enables derated operation up to 70°C ambient without forced air; 150°C T_J rating supports extended lifetime at elevated temperatures.

Use Scenario: Isolated DC-DC modules (e.g., 48 V to 12 V) used in telecom and datacom equipment.

IC Role / Device Role / Timing Role: Secondary-side synchronous rectifier replacement in low-noise, high-efficiency isolated converters.

Use Value: 48 pF junction capacitance limits EMI generation during turn-off; halogen-free construction satisfies IPC-J-STD-020 and RoHS traceability requirements.

Equivalent & Alternatives

The following parts are listed as comparable options for similar rectifier applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH8R04DJF	V_RRM = 400 V, I_F = 8 A, but ultrafast recovery (t_rr = 35 ns); VF = 1.05 V @ 8 A	Better suited for high-frequency (>100 kHz) PFC or ZVS circuits where reverse recovery loss dominates	Select STTH8R04DJF only if t_rr < 50 ns is required; S8GC R7G offers lower cost and higher surge margin for standard SMPS.
ON Semi MUR840	V_RRM = 400 V, I_F = 8 A, fast recovery (t_rr = 75 ns); VF = 1.0 V @ 8 A; same DO-214AB package	Higher switching speed reduces EMI in noise-sensitive applications but increases conduction loss slightly	MUR840 is a functional alternative with identical footprint; choose S8GC R7G for superior surge robustness (600 A @ 1.0 ms vs. 400 A).

Compared with STTH8R04DJF and MUR840, the S8GC R7G prioritizes surge immunity and thermal stability over ultrafast switching - making it optimal for cost-sensitive, high-reliability AC-DC front ends where recovery time is not critical.

Availability

S8GC R7G is available at Aetrix Electronics and suitable for AC-DC adapters, LED drivers, and industrial SMPS requiring stable component supply, RoHS/halogen-free compliance, and MSL Level 1 manufacturability.

Supply support for S8GC 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, automotive, and industrial markets since 1979.

The S8GC R7G belongs to TSC's S8x series of high-current surface-mount rectifiers designed specifically for reliable, high-yield manufacturing in mainstream switching power supplies and lighting systems.

FAQ

What is the maximum junction temperature rating for the S8GC R7G?

The S8GC R7G has a maximum junction temperature (T_J) rating of +150°C, verified per absolute maximum ratings table. This allows continuous operation at elevated ambient temperatures when mounted on appropriate copper area or heatsink. Derating curves in the datasheet define allowable I_F versus lead temperature, and thermal resistance values (R_θJA = 44.0 °C/W, R_θJL = 12.5 °C/W) enable accurate thermal modeling for the S8GC R7G in final PCB layouts.

Does the S8GC R7G meet RoHS and halogen-free requirements?

Yes, the S8GC R7G is fully RoHS compliant and halogen-free per IEC 61249-2-21. This is confirmed in the "Features" section and "Ordering Information" page of the official Taiwan Semiconductor datasheet (Version G2210). The molding compound, plating, and internal materials have been qualified to meet both regulatory standards, making the S8GC R7G suitable for export to EU, Japan, and other regulated markets without additional compliance documentation.

What is the marking code on the S8GC R7G device body?

The S8GC R7G is marked with "S8GC" on the device body, followed by green compound indicator "G", factory code "F", and date code "YW". This marking appears adjacent to the cathode band on the DO-214AB (SMC) package. The "S8GC" portion explicitly identifies the 400 V variant within the S8x family, distinguishing it from S8JC (600 V), S8KC (800 V), and S8MC (1000 V) versions - all sharing the same package and thermal characteristics.

Is the S8GC R7G suitable for use in high-humidity environments?

Yes, the S8GC R7G is suitable for high-humidity environments due to its glass-passivated chip junction, which provides superior moisture barrier performance compared to epoxy-passivated alternatives. Combined with MSL Level 1 rating (no floor life restriction) and JESD201 Class 2 whisker resistance, the S8GC R7G maintains stable reverse leakage (<10 µA at 25°C) and mechanical integrity under prolonged 85°C/85% RH exposure - validated per JEDEC test conditions for industrial-grade reliability.

What is the surge current rating of the S8GC R7G at 1.0 ms pulse width?

The S8GC R7G supports a peak non-repetitive forward surge current (I_FSM) of 600 A at 1.0 ms pulse width and T_J = 25°C, as specified in the Absolute Maximum Ratings table. At T_J = 125°C, this rating decreases to 338 A. This high 1.0 ms surge capability exceeds typical industry standards and enables robust protection against cold-start inrush, lightning-induced transients, and short-duration line disturbances in AC-DC power systems using the S8GC R7G.

S8GC 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):: 400 V

Current - Average Rectified (Io):: 8A

Voltage - Forward (Vf) (Max) @ If:: 985 mV @ 8 A

Speed:: Fast Recovery =< 500ns, > 200mA (Io)

Reverse Recovery Time (trr):: -

Current - Reverse Leakage @ Vr:: 10 µA @ 400 V

Capacitance @ Vr, F:: 48pF @ 4V, 1MHz

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: DO-214AB (SMC)

Operating Temperature - Junction:: -55°C ~ 150°C

S8GC R7G FAQ

1.How can I place an order for S8GC R7G through Aetrix?

Please submit a Request for Quotation (RFQ) for S8GC 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 S8GC R7G reliable?

The price and inventory of S8GC R7G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S8GC R7G is usually 5 days.

3.What payment methods are accepted for S8GC R7G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S8GC R7G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for S8GC R7G?

S8GC R7G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your S8GC 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 S8GC R7G?

For technical support, including S8GC R7G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S8GC R7G requirements.

6.How does Aetrix verify that S8GC R7G is sourced from the original manufacturer or authorized distributors?

All S8GC 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 S8GC R7G meets industry standards.

7.What is the process for return or replacement of S8GC R7G?

All S8GC R7G units undergo pre-shipment inspection (PSI). If there is an issue with S8GC 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 S8GC R7G part is unused and in its original packaging.

Return procedure for S8GC R7G:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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