SFH690AT3 Equivalent & Substitute Parts

Part Overview

The SFH690AT3 is an optoisolator with transistor output manufactured by Vishay Semiconductor Opto Division. This component provides 3750Vrms isolation voltage in a 4-SOP surface mount package, designed for applications requiring galvanic isolation with DC input and transistor output configuration. The part is currently active in production status with full RoHS3 compliance and unlimited moisture sensitivity rating. Identifying equivalent substitute parts is necessary to ensure design flexibility, manage supply chain continuity, and optimize procurement across different packaging formats while maintaining identical electrical and mechanical performance.

Substiute Parts

SFH690AT3

Vishay Semiconductor Opto DivisionIn Stock: 766SFH690AT3 Datasheet

Current PartRFQ

SFH690AT

Vishay Semiconductor Opto DivisionIn Stock: 4599SFH690AT Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SFH690AT3 are determined by strict equivalence across the following critical parameters:

• Voltage - Isolation: 3750Vrms
• Number of Channels: 1
• Output Type: Transistor
• Current Transfer Ratio range: 50% to 150% @ 5mA
• Voltage - Output (Max): 70V
• Current - Output / Channel: 50mA
• Vce Saturation (Max): 300mV
• Operating Temperature range: -55°C ~ 100°C
• Package / Case: 4-SMD, Gull Wing
• Supplier Device Package: 4-SOP (2.54mm)
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

The SFH690AT3 differs from its substitute only in packaging format (Tape & Reel versus Cut Tape & Digi-Reel®). All electrical characteristics, isolation voltage, output specifications, and compliance certifications remain identical.

Parameter Comparison

Engineering Selection Recommendations

Both the SFH690AT3 and SFH690AT are active production parts with identical electrical specifications and full RoHS3 compliance. Selection between these parts is determined solely by packaging and supply chain requirements. The SFH690AT3 is supplied in Tape & Reel format, suitable for high-volume automated assembly operations. The SFH690AT is supplied in Cut Tape and Digi-Reel® format, suitable for lower-volume applications or mixed component procurement. Both parts carry REACH Unaffected status and EAR99 export classification. No electrical or thermal performance differences exist between these variants.

Frequently Asked Questions (FAQ)

Q: Can SFH690AT be used as a direct replacement for SFH690AT3?

A: Yes. Both parts are electrically and mechanically identical. The only difference is packaging format. SFH690AT3 uses Tape & Reel packaging, while SFH690AT uses Cut Tape & Digi-Reel® packaging. Selection depends on assembly process requirements and procurement volume.

Q: Are there any performance differences between SFH690AT3 and SFH690AT?

A: No. Both parts share identical electrical characteristics including isolation voltage (3750Vrms), current transfer ratio (50-150% @ 5mA), output voltage (70V max), output current (50mA), and operating temperature range (-55°C to 100°C).

Q: What is the significance of the packaging designation in the part number?

A: The "3" suffix in SFH690AT3 indicates Tape & Reel packaging format, optimized for high-speed automated pick-and-place assembly. The SFH690AT without the suffix uses Cut Tape & Digi-Reel® format, suitable for manual handling or lower-volume production runs.

Q: Do both parts meet the same compliance standards?

A: Yes. Both SFH690AT3 and SFH690AT are ROHS3 compliant, REACH unaffected, and classified as EAR99 for export purposes. Moisture sensitivity level is 1 (unlimited) for both variants.

Q: Is the 4-SOP (2.54mm) package compatible with standard PCB designs?

A: Yes. Both parts use the same 4-SOP (2.54mm) package with 4-SMD gull wing configuration. PCB footprints and design layouts are identical between SFH690AT3 and SFH690AT.