SFH617A-3G Equivalent & Substitute Parts

Part Overview

The SFH617A-3G is a single-channel optoisolator with transistor output, designed for galvanic isolation applications requiring DC input control. This component features a 7.5Vpk isolation voltage rating and is housed in a 4-DIP through-hole package. The part is currently active in production with full RoHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified when parametric specifications remain identical across all critical electrical and mechanical characteristics, ensuring direct functional equivalence in circuit applications.

Substiute Parts

SFH617A-3G

Isocom Components 2004 LTDIn Stock: 947SFH617A-3G Datasheet

Current PartRFQ

SFH617A-3XG

Isocom Components 2004 LTDIn Stock: 920SFH617A-3XG Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SFH617A-3G are identified based on exact parametric equivalence across all specified electrical and mechanical characteristics. The substitution criteria are strictly limited to the following parameters:

• Single-channel configuration
• 7.5Vpk isolation voltage
• Current transfer ratio range: 100% to 200% @ 10mA
• Transistor output type
• Maximum output voltage: 70V
• Maximum output current: 50mA per channel
• Maximum Vce saturation: 400mV
• Operating temperature range: -30°C to 100°C
• 4-DIP through-hole package (0.400", 10.16mm)
• Active product status
• RoHS3 compliance

Parts meeting all these criteria are classified as parametric equivalents and may be used interchangeably in applications designed for the SFH617A-3G.

Parameter Comparison

Engineering Selection Recommendations

The SFH617A-3XG is a direct parametric equivalent to the SFH617A-3G. Both parts are manufactured by Isocom Components 2004 LTD, maintain active product status, and carry identical electrical specifications and mechanical packaging. Both components are RoHS3 compliant with unlimited moisture sensitivity rating (MSL 1), meeting the same regulatory and environmental standards.

Selection between these parts may be based on inventory availability, lead time, or supplier preference, as no technical differentiation exists between them. The SFH617A-3G currently maintains 924 units in stock, while the SFH617A-3XG has 903 units available.

Frequently Asked Questions (FAQ)

Q: Can the SFH617A-3XG be used as a direct replacement for the SFH617A-3G?

A: Yes. The SFH617A-3XG meets all parametric specifications of the SFH617A-3G, including isolation voltage, current transfer ratio, output characteristics, temperature range, and package configuration. No circuit modifications are required.

Q: Are there any differences in package dimensions between these parts?

A: No. Both parts use the identical 4-DIP package with 0.400" (10.16mm) body width, ensuring compatibility with existing PCB layouts and through-hole assembly processes.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the SFH617A-3G and SFH617A-3XG are RoHS3 compliant, REACH unaffected, and carry MSL 1 (unlimited) moisture sensitivity rating.

Q: What is the difference between the part numbers SFH617A-3G and SFH617A-3XG?

A: The part numbers differ only in the suffix designation (G versus XG). This suffix typically indicates packaging or distribution channel variation within the same product series, but all electrical and mechanical specifications remain identical.

Q: Can these parts be used interchangeably in production?

A: Yes. Both parts are functionally and mechanically equivalent and may be used interchangeably in applications designed for single-channel optoisolation with 7.5Vpk isolation voltage and transistor output.