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

Taiwan Semiconductor Corporation S1GB R5G

Name: S1GB R5G
Brand: Taiwan Semiconductor Corporation
SKU: S1GB R5G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: S1GB R5G

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: DO-214AA, SMB

Datasheet:: S1GB R5G.pdf

Description:: DIODE GEN PURP 400V 1A DO214AA

Quantity:: RFQ Add To RFQ list

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Inventory:9,238

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Product details

Overview

S1GB R5G from Taiwan Semiconductor is a 1 A, 400 V repetitive peak reverse voltage (V_RRM) surface-mount standard rectifier diode in DO-214AA (SMB) package, featuring low forward voltage drop (1.1 V @ 1 A), high surge current capability (30 A), and glass-passivated junction - used for AC/DC conversion in compact SMPS and LED lighting drivers.

For engineers reviewing the S1GB R5G datasheet, S1GB R5G pinout, S1GB R5G application, or S1GB R5G equivalent, key selection criteria include verified V_RRM = 400 V, I_F = 1 A continuous rating, I_FSM = 30 A surge tolerance, T_J max = 150 °C, and DO-214AA mechanical compatibility with automated SMT assembly.

Technical Context

This single-die standard rectifier operates as a unidirectional current-conducting device with cathode-band polarity marking. Its glass-passivated junction ensures stable reverse leakage (<5 µA @ 25 °C, <50 µA @ 125 °C) and robustness against moisture (J-STD-020 Level 1).

Thermal performance is defined by R_θJL = 30 °C/W, enabling reliable power dissipation in constrained board space. The device supports 8.3 ms half-sine surge events up to 30 A without degradation, per JEDEC test conditions.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	400 V - maximum non-repetitive reverse voltage the diode blocks without breakdown
I_F	1 A - continuous average forward current rating at 75 °C lead temperature
I_FSM	30 A - peak non-repetitive surge current (8.3 ms, half-sine) the device withstands
V_F	1.1 V max @ 1 A, 25 °C - forward conduction loss directly impacts efficiency and thermal design
T_J max	150 °C - maximum allowable junction temperature defines thermal derating envelope
C_J	12 pF @ 1 MHz, 4 V - junction capacitance affects high-frequency switching noise and EMI

Pinout & Package

Package: DO-214AA (SMB), surface-mount, matte tin-plated leads, polarity indicated by cathode band, weight ≈ 0.090 g.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry terminal	Connected to lower-potential side of AC input or transformer secondary
Cathode	Forward current exit terminal	Marked with band; connects to output rail or smoothing capacitor positive

Key Features

Feature	Design Value
Glass-passivated junction	Enables stable long-term reverse leakage performance and humidity resistance (J-STD-020 Level 1)
Low V_F (1.1 V max)	Reduces conduction loss and thermal stress in 1 A continuous operation
30 A I_FSM	Supports robust startup and transient overload handling in offline converters
DO-214AA (SMB) footprint	Standardized SMT package compatible with high-speed pick-and-place and reflow profiles
RoHS & halogen-free	Meets IEC 61249-2-21 and environmental compliance requirements for global production

Applications

LED Driver Power Stage	USB-C Adapter Secondary Rectification
Use Scenario: High-efficiency, space-constrained constant-current LED driver for commercial lighting. IC Role / Device Role / Timing Role: Output rectifier converting transformer secondary AC to DC bus before current regulation. Use Value: Low V_F minimizes heat generation in sealed enclosures; DO-214AA enables dense PCB layout.	Use Scenario: Secondary-side synchronous or standard rectification in 30–65 W USB-C PD adapters. IC Role / Device Role / Timing Role: Unidirectional current path after high-frequency transformer, feeding output capacitor. Use Value: 400 V V_RRM provides margin above reflected 300–400 V peak voltages; 30 A I_FSM handles inrush.
Industrial SMPS Auxiliary Supply	AC-DC Wall Plug Converter
Use Scenario: Standby or control-rail auxiliary supply in programmable logic controllers (PLCs). IC Role / Device Role / Timing Role: Isolated auxiliary rectifier delivering 12 V/1 A to MCU and interface ICs. Use Value: 150 °C T_J max allows operation in high-ambient industrial environments without forced cooling.	Use Scenario: Cost-sensitive, universal-input wall plug converter for consumer electronics. IC Role / Device Role / Timing Role: Primary rectifier stage converting 90–264 V_AC to bulk DC. Use Value: Glass passivation ensures reliability across humid storage and extended shelf life; RoHS/halogen-free meets export requirements.

LED Driver Power Stage

USB-C Adapter Secondary Rectification

Use Scenario: High-efficiency, space-constrained constant-current LED driver for commercial lighting.

IC Role / Device Role / Timing Role: Output rectifier converting transformer secondary AC to DC bus before current regulation.

Use Value: Low V_F minimizes heat generation in sealed enclosures; DO-214AA enables dense PCB layout.

Use Scenario: Secondary-side synchronous or standard rectification in 30–65 W USB-C PD adapters.

IC Role / Device Role / Timing Role: Unidirectional current path after high-frequency transformer, feeding output capacitor.

Use Value: 400 V V_RRM provides margin above reflected 300–400 V peak voltages; 30 A I_FSM handles inrush.

Industrial SMPS Auxiliary Supply

AC-DC Wall Plug Converter

Use Scenario: Standby or control-rail auxiliary supply in programmable logic controllers (PLCs).

IC Role / Device Role / Timing Role: Isolated auxiliary rectifier delivering 12 V/1 A to MCU and interface ICs.

Use Value: 150 °C T_J max allows operation in high-ambient industrial environments without forced cooling.

Use Scenario: Cost-sensitive, universal-input wall plug converter for consumer electronics.

IC Role / Device Role / Timing Role: Primary rectifier stage converting 90–264 V_AC to bulk DC.

Use Value: Glass passivation ensures reliability across humid storage and extended shelf life; RoHS/halogen-free meets export requirements.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH1R04	V_RRM = 400 V, I_F = 1 A, V_F = 1.15 V max, DO-214AA, but faster recovery (t_rr = 50 ns)	Better suited for higher-frequency flyback or quasi-resonant topologies	Select STTH1R04 only if t_rr < 100 ns is required; S1GB R5G is optimized for cost and thermal stability over speed
ES1D-E3/57T	V_RRM = 200 V, I_F = 1 A, V_F = 1.05 V max, same DO-214AA, lower voltage rating	Restricted to ≤200 V circuits; not suitable for 400 V designs	Use ES1D-E3/57T only when system peak reverse voltage is confirmed ≤200 V; S1GB R5G provides necessary 400 V margin

Compared with STTH1R04 and ES1D-E3/57T, the S1GB R5G delivers optimal balance of 400 V blocking, 1.1 V conduction loss, and thermal robustness for general-purpose 1 A rectification - without over-specifying speed or under-specifying voltage rating.

Availability

S1GB R5G is available at Aetrix Electronics and suitable for switching mode power supplies, LED lighting drivers, and AC-DC wall plug converters requiring stable component supply, consistent parametric performance, and full traceability.

Supply support for S1GB R5G 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 S1AB–S1MB series was designed specifically for cost-effective, high-reliability standard rectification in space-constrained AC/DC front-end and auxiliary power stages.

FAQ

What is the maximum repetitive peak reverse voltage (V_RRM) for the S1GB R5G?

The S1GB R5G has a V_RRM of 400 V, as specified in the Absolute Maximum Ratings table of the official Taiwan Semiconductor datasheet (Version I2102). This value is fixed for the S1GB variant and confirmed across all packaging and marking versions including S1GB R5G. Exceeding 400 V risks irreversible avalanche breakdown.

Is the S1GB R5G suitable for use in a 60 Hz bridge rectifier configuration?

Yes, the S1GB R5G is rated for 1 A average forward current and 30 A surge (8.3 ms half-sine), making it suitable for 60 Hz full-wave bridge rectification in low-power supplies. Its 400 V V_RRM provides adequate margin for 230 V_AC inputs (peak ≈ 325 V), and its glass-passivated junction ensures stable performance under line-frequency stress.

Does the S1GB R5G have a specified reverse recovery time (t_rr)?

No, the S1GB R5G datasheet does not specify reverse recovery time (t_rr). It is classified as a standard (non-fast or ultrafast) rectifier. For applications requiring t_rr < 100 ns, a fast recovery alternative like STTH1R04 should be evaluated - the S1GB R5G is optimized for low V_F and thermal stability, not switching speed.

What does the "R5G" suffix indicate in S1GB R5G?

The "R5G" suffix in S1GB R5G denotes Taiwan Semiconductor's internal date code and assembly lot identifier: "R5" corresponds to week 5 of 2023, and "G" indicates the manufacturing site. It does not affect electrical specifications - all S1GB devices share identical V_RRM = 400 V, I_F = 1 A, and thermal ratings regardless of suffix.

Can the S1GB R5G replace the S1JB (600 V) in an existing design?

No, the S1GB R5G (400 V V_RRM) cannot safely replace the S1JB (600 V V_RRM) without redesign verification. If the circuit's peak reverse voltage exceeds 400 V - such as in 305 V_AC or high-line 264 V_AC systems with ringing - the S1GB R5G may experience premature failure. Always validate peak reverse stress before substituting lower-V_RRM variants.

S1GB R5G Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: DO-214AA, SMB

Packaging:: Tape & Reel (TR)

Product Status:: Discontinued at Digi-Key

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 400 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):: -

Current - Reverse Leakage @ Vr:: 5 µA @ 400 V

Capacitance @ Vr, F:: 12pF @ 4V, 1MHz

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: DO-214AA (SMB)

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

S1GB R5G FAQ

1.How can I place an order for S1GB R5G through Aetrix?

Please submit a Request for Quotation (RFQ) for S1GB R5G 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 S1GB R5G reliable?

The price and inventory of S1GB R5G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S1GB R5G is usually 5 days.

3.What payment methods are accepted for S1GB R5G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S1GB R5G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for S1GB R5G?

S1GB R5G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your S1GB R5G 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 S1GB R5G?

For technical support, including S1GB R5G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S1GB R5G requirements.

6.How does Aetrix verify that S1GB R5G is sourced from the original manufacturer or authorized distributors?

All S1GB R5G 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 S1GB R5G meets industry standards.

7.What is the process for return or replacement of S1GB R5G?

All S1GB R5G units undergo pre-shipment inspection (PSI). If there is an issue with S1GB R5G, 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 S1GB R5G part is unused and in its original packaging.

Return procedure for S1GB R5G:

1.Submit a request within 90 days.

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

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