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

Vishay General Semiconductor - Diodes Division S1FLB-GS18

Name: S1FLB-GS18
Brand: Vishay General Semiconductor - Diodes Division
SKU: S1FLB-GS18
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: S1FLB-GS18

Manufacturer:: Vishay General Semiconductor - Diodes Division

Category:: Single Diodes

Package:: DO-219AB

Datasheet:: S1FLB-GS18.pdf

Description:: DIODE GP 100V 700MA DO219AB

Quantity:: RFQ Add To RFQ list

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Inventory:9,597

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Product details

Overview

S1FLB-GS18 from Vishay Semiconductors is a surface-mount standard recovery rectifier diode with 100 V maximum repetitive peak reverse voltage (V_RRM), 1.5 A average forward current at 75 °C case temperature, and 1.1 V typical forward voltage at 1 A. It features glass passivation, wave/reflow solder compatibility, and is packaged in the low-profile SMF (DO-219AB) case for high-density PCB layouts in power supply front-end and AC/DC conversion stages.

For engineers reviewing the S1FLB-GS18 datasheet, S1FLB-GS18 pinout, S1FLB-GS18 application, or S1FLB-GS18 equivalent, this part serves as a cost-optimized, high-temperature-rated rectifier for space-constrained industrial and consumer power supplies where moderate switching speed and robust thermal performance are required.

Technical Context

The S1FLB-GS18 operates as a single-anode/cathode silicon PN junction rectifier with standard recovery characteristics (t_rr = 1800 ns). Its 100 V V_RRM, 1.1 V V_F @ 1 A, and 10 µA I_R @ 25 °C define its use in non-high-frequency line rectification where low conduction loss and stable leakage under thermal stress are prioritized.

Thermal resistance of 180 K/W (junction-to-ambient, mounted on 3 mm × 3 mm Cu pads) and operation up to +150 °C junction temperature enable reliable deployment in enclosed or thermally demanding environments without active cooling.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	100 V - Maximum reverse blocking capability for 100 V AC input or DC bus applications.
I_F(AV)	1.5 A at T_L = 75 °C - Continuous forward current rating on standard epoxy PCB with 3 mm × 3 mm copper pads.
V_F	1.1 V @ 1 A - Low conduction loss enabling efficient power conversion in low-voltage secondary-side rectification.
t_rr	1800 ns - Standard recovery time suitable for 50/60 Hz and low-kHz line-frequency rectification, not for high-frequency SMPS.
R_thJA	180 K/W - Thermal resistance indicating need for adequate copper area or forced airflow in >0.5 A continuous operation.
I_R	10 µA @ 25 °C - Low reverse leakage ensures minimal standby power loss in offline power supplies.
C_j	4 pF @ 4 V - Minimal junction capacitance reduces EMI generation during turn-off in low-speed switching circuits.

Pinout & Package

Package: SMF (DO-219AB), surface-mount, low-profile plastic case with cathode band marking. Dimensions: 3.9 mm × 1.9 mm × 0.85 mm (L × W × H); weight ≈ 15 mg.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry terminal	Connected to AC input or transformer secondary; requires thermal pad connection for rated I_F(AV).
Cathode	Forward current exit / reverse blocking terminal	Marked by band; connects to output capacitor or DC bus; polarity-sensitive placement critical for function.

Key Features

Feature	Design Value
Glass passivated junction	Enhances long-term reliability and moisture resistance in humid or contaminated environments.
Wave and reflow solder compatible	Supports automated assembly per J-STD-020; withstands 260 °C / 10 s peak temperature at terminals.
Low-profile SMF package	Enables <1 mm board height in slim power adapters and IoT edge devices with strict Z-axis constraints.
High-temperature operation	Junction range −55 °C to +150 °C allows use in automotive under-hood auxiliary supplies or industrial motor drives.

Applications

AC/DC Adapter Input Rectification	Industrial Control Power Supply
Use Scenario: Converting 90–264 V AC mains to unregulated DC in compact wall adapters and USB-C PD accessories. IC Role / Device Role / Timing Role: Primary-side standard recovery rectifier handling full-wave bridge or voltage-doubler configuration. Use Value: 100 V V_RRM and 1.5 A I_F(AV) support universal-input designs with margin; low V_F minimizes heat in sealed enclosures.	Use Scenario: Providing auxiliary 12 V or 24 V DC rails for PLC I/O modules and sensor interface boards. IC Role / Device Role / Timing Role: Line-frequency rectifier in transformer-isolated, linear-regulated auxiliary supplies. Use Value: 150 °C max junction temperature ensures stability in control cabinets with ambient temperatures up to 70 °C.
Consumer Appliance Power Stage	LED Driver Input Stage
Use Scenario: Rectifying AC input in washing machine motor control boards and HVAC fan controllers. IC Role / Device Role / Timing Role: Single-diode element in discrete bridge configurations feeding bulk capacitors. Use Value: Glass passivation and 10 µA I_R at 25 °C reduce failure risk in dusty, vibration-prone appliance environments.	Use Scenario: Front-end rectification in constant-current LED drivers for commercial lighting fixtures. IC Role / Device Role / Timing Role: Mains-side rectifier preceding PFC stage or directly feeding buck converter input. Use Value: 4 pF C_j limits high-frequency noise coupling into sensitive current-sense circuitry downstream.

AC/DC Adapter Input Rectification

Industrial Control Power Supply

Use Scenario: Converting 90–264 V AC mains to unregulated DC in compact wall adapters and USB-C PD accessories.

IC Role / Device Role / Timing Role: Primary-side standard recovery rectifier handling full-wave bridge or voltage-doubler configuration.

Use Value: 100 V V_RRM and 1.5 A I_F(AV) support universal-input designs with margin; low V_F minimizes heat in sealed enclosures.

Use Scenario: Providing auxiliary 12 V or 24 V DC rails for PLC I/O modules and sensor interface boards.

IC Role / Device Role / Timing Role: Line-frequency rectifier in transformer-isolated, linear-regulated auxiliary supplies.

Use Value: 150 °C max junction temperature ensures stability in control cabinets with ambient temperatures up to 70 °C.

Consumer Appliance Power Stage

LED Driver Input Stage

Use Scenario: Rectifying AC input in washing machine motor control boards and HVAC fan controllers.

IC Role / Device Role / Timing Role: Single-diode element in discrete bridge configurations feeding bulk capacitors.

Use Value: Glass passivation and 10 µA I_R at 25 °C reduce failure risk in dusty, vibration-prone appliance environments.

Use Scenario: Front-end rectification in constant-current LED drivers for commercial lighting fixtures.

IC Role / Device Role / Timing Role: Mains-side rectifier preceding PFC stage or directly feeding buck converter input.

Use Value: 4 pF C_j limits high-frequency noise coupling into sensitive current-sense circuitry downstream.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH1R06	Same V_RRM (600 V), higher I_F(AV) (1.6 A), faster t_rr (75 ns), TO-220AC package	Requires through-hole mounting and heatsinking; unsuitable for ultra-thin designs	Select when higher voltage margin or lower switching loss is needed, and board space permits larger footprint.
ON Semiconductor MUR110	Same V_RRM (100 V), identical I_F(AV) (1.5 A), but DO-41 axial lead package	Not surface-mountable; incompatible with automated SMT lines and dense PCB layouts	Choose only for prototyping or legacy through-hole systems where rework flexibility outweighs production efficiency.

Compared with STTH1R06 and MUR110, the S1FLB-GS18 delivers optimal trade-offs for volume SMT production: its SMF package enables miniaturization, while its 100 V rating and 1.1 V V_F balance cost, size, and conduction efficiency in sub-10 W AC/DC converters.

Availability

S1FLB-GS18 is available at Aetrix Electronics and suitable for AC/DC adapter input rectification, industrial control power supply, and consumer appliance power stage applications requiring stable component supply and consistent tape-and-reel delivery for automated manufacturing.

Supply support for S1FLB-GS18 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

Vishay Semiconductors is a global leader in discrete semiconductors, specializing in high-reliability diodes, MOSFETs, and optoelectronics for industrial, automotive, and computing markets.

The S1FLB-GS18 belongs to Vishay's eSMP® Series of surface-mount rectifiers, engineered for high-temperature, high-density power conversion in cost-sensitive consumer and industrial equipment.

FAQ

What is the maximum operating temperature for the S1FLB-GS18?

The S1FLB-GS18 has a specified operating junction temperature range of −55 °C to +150 °C. This allows it to function reliably in high-ambient environments such as enclosed power supplies or industrial control cabinets. Derating curves in the datasheet show that at 65 °C ambient, the average forward current drops to 0.7 A - always verify thermal design using the 180 K/W R_thJA value and actual PCB copper area for the S1FLB-GS18.

Is the S1FLB-GS18 suitable for high-frequency switching applications?

No, the S1FLB-GS18 is not suitable for high-frequency switching. With a reverse recovery time (t_rr) of 1800 ns, it is designed for standard recovery use in 50/60 Hz line-frequency rectification and low-kHz applications. Using the S1FLB-GS18 in SMPS topologies above 20 kHz will cause excessive switching losses and overheating - fast or ultrafast alternatives like the VS-1EWH06FN-M3 must be selected instead.

What does the "GS18" suffix indicate in S1FLB-GS18?

The "GS18" suffix denotes the packaging option: 10,000 units per 13-inch reel on 8 mm tape, with a minimum order quantity of 50,000 pieces. This format supports high-volume SMT placement. The alternative "GS08" option uses a 7-inch reel with 3,000 units and 30,000 MOQ - both variants share identical electrical and thermal specifications for the S1FLB-GS18.

How is polarity identified on the S1FLB-GS18 package?

The S1FLB-GS18 uses a cathode band marking on the SMF (DO-219AB) package body to indicate polarity. The banded end is the cathode terminal, and the opposite end is the anode. Orientation in carrier tape follows standard industry convention with the cathode facing the sprocket holes - correct placement is essential to avoid reverse-bias failure during operation of the S1FLB-GS18.

Can the S1FLB-GS18 replace a DO-41 diode in an existing design?

Electrically, yes - the S1FLB-GS18 matches common DO-41 rectifiers like the 1N4001 in V_RRM and I_F(AV). However, mechanical replacement requires PCB redesign: the SMF (DO-219AB) package is surface-mount with 3.9 mm × 1.9 mm footprint, unlike axial DO-41. Direct substitution is not possible without layout changes; the S1FLB-GS18 is intended for new SMT designs, not DO-41 drop-in upgrades.

S1FLB-GS18 Specifications

Product attributes: Attribute value

Manufacturer:: Vishay General Semiconductor - Diodes Division

Series:: -

Package/Case:: DO-219AB

Packaging:: Tape & Reel (TR)

Product Status:: Active

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 100 V

Current - Average Rectified (Io):: 700mA

Voltage - Forward (Vf) (Max) @ If:: 1.1 V @ 1 A

Speed:: Standard Recovery >500ns, > 200mA (Io)

Reverse Recovery Time (trr):: 1.8 µs

Current - Reverse Leakage @ Vr:: 10 µA @ 100 V

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: DO-219AB (SMF)

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

S1FLB-GS18 FAQ

1.How can I place an order for S1FLB-GS18 through Aetrix?

Please submit a Request for Quotation (RFQ) for S1FLB-GS18 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 S1FLB-GS18 reliable?

The price and inventory of S1FLB-GS18 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S1FLB-GS18 is usually 5 days.

3.What payment methods are accepted for S1FLB-GS18?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S1FLB-GS18 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for S1FLB-GS18?

S1FLB-GS18 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your S1FLB-GS18 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 S1FLB-GS18?

For technical support, including S1FLB-GS18 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S1FLB-GS18 requirements.

6.How does Aetrix verify that S1FLB-GS18 is sourced from the original manufacturer or authorized distributors?

All S1FLB-GS18 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 S1FLB-GS18 meets industry standards.

7.What is the process for return or replacement of S1FLB-GS18?

All S1FLB-GS18 units undergo pre-shipment inspection (PSI). If there is an issue with S1FLB-GS18, 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 S1FLB-GS18 part is unused and in its original packaging.

Return procedure for S1FLB-GS18:

1.Submit a request within 90 days.

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

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