SFH617A-4 Equivalent & Substitute Parts

Part Overview

The SFH617A-4 is a single-channel optoisolator with transistor output, manufactured by Isocom Components 2004 LTD. This component provides galvanic isolation with a 7.5Vpk isolation voltage rating and is designed for DC input applications requiring transistor-switched outputs up to 70V and 50mA per channel. The part is currently active in production with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across the same product series and packaging specifications.

Substiute Parts

SFH617A-4

Isocom Components 2004 LTDIn Stock: 6070SFH617A-4 Datasheet

Current PartRFQ

SFH617A-4X

Isocom Components 2004 LTDIn Stock: 1202SFH617A-4X Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SFH617A-4 is determined by strict equivalence across the following critical parameters:

• Number of Channels: 1 channel configuration
• Voltage - Isolation: 7.5Vpk minimum
• Current Transfer Ratio: 160% (Min) @ 10mA and 320% (Max) @ 10mA
• Output Type: Transistor output topology
• Voltage - Output (Max): 70V capability
• Current - Output / Channel: 50mA per channel
• Vce Saturation (Max): 400mV
• Operating Temperature Range: -30°C ~ 100°C
• Package / Case: 4-DIP (0.300", 7.62mm) form factor
• Mounting Type: Through Hole

Parts meeting all these specifications within the same manufacturer series are classified as parametric equivalents and direct substitutes.

Parameter Comparison

Engineering Selection Recommendations

The SFH617A-4X is a direct parametric equivalent to the SFH617A-4. Both parts are manufactured by Isocom Components 2004 LTD within the same SFH617A series and maintain identical electrical and mechanical specifications. Both parts carry active product status, ROHS3 compliance, and REACH unaffected designation. Selection between these parts may be based on inventory availability, lead time, or supplier preference, as no technical differentiation exists between them.

Frequently Asked Questions (FAQ)

Q: Can SFH617A-4X be used as a direct replacement for SFH617A-4?

A: Yes. The SFH617A-4X meets all electrical and mechanical parameters of the SFH617A-4, including isolation voltage, current transfer ratio, output voltage and current ratings, saturation voltage, operating temperature range, and 4-DIP through-hole package specification. No circuit redesign or board layout modification is required.

Q: Are there any compliance or regulatory differences between these parts?

A: No. Both parts carry identical RoHS3 compliance status, REACH unaffected designation, and MSL 1 (unlimited) moisture sensitivity rating.

Q: What determines substitution eligibility for SFH617A-4 optoisolators?

A: Substitution eligibility is strictly determined by equivalence in isolation voltage (7.5Vpk), current transfer ratio (160-320% @ 10mA), transistor output topology, maximum output voltage (70V), maximum output current (50mA), saturation voltage (400mV), operating temperature range (-30°C to 100°C), and 4-DIP through-hole package form factor.

Q: Can parts from different manufacturers substitute for the SFH617A-4?

A: Substitution is limited to parts within the Isocom Components 2004 LTD SFH617A series that maintain all specified electrical and mechanical parameters. Cross-manufacturer substitution requires verification of equivalent parametric specifications.

Q: Does packaging type affect substitution compatibility?

A: Yes. The SFH617A-4 is specified for 4-DIP (0.300", 7.62mm) through-hole mounting. Substitute parts must use identical package and mounting specifications to ensure PCB compatibility without layout modification.