SFH609-3 Equivalent & Substitute Parts

Part Overview

The SFH609-3 is an optoisolator transistor with base output manufactured by Isocom Components 2004 LTD. This single-channel device provides galvanic isolation rated at 7500Vpk and is housed in a 6-DIP package for through-hole mounting. The component is currently active in production with 2348 units in stock. Alternative models may be required due to supply constraints, design revisions, or specific application requirements where isolation voltage or switching characteristics differ from the primary specification.

Substiute Parts

SFH609-3

Isocom Components 2004 LTDIn Stock: 2411SFH609-3 Datasheet

Current PartRFQ

SFH601-3

Vishay Semiconductor Opto DivisionIn Stock: 5213SFH601-3 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SFH609-3 is determined by the following critical parameters:

• Package compatibility: 6-DIP (0.300", 7.62mm) through-hole mounting
• Functional equivalence: Single-channel optoisolator with transistor output and base connection
• Isolation voltage: Minimum 5000Vrms or equivalent peak voltage rating
• Current transfer ratio: 100% to 200% @ 10mA
• Output characteristics: Transistor with base, maximum output voltage ≥90V, saturation voltage ≤400mV
• Input type: DC
• Operating temperature range: -55°C to 100°C
• Compliance: ROHS3 compliant, REACH unaffected

The SFH601-3 meets all substitution criteria within these parameters.

Parameter Comparison

Engineering Selection Recommendations

Both the SFH609-3 and SFH601-3 are active products with ROHS3 compliance and REACH unaffected status. The SFH609-3 provides higher isolation voltage (7500Vpk versus 5000Vrms). The SFH601-3 offers faster switching characteristics with reduced turn-off and rise/fall times. Selection between these parts depends on isolation voltage requirements for the specific application. Both devices are suitable for through-hole PCB assembly and operate across the full industrial temperature range.

Frequently Asked Questions (FAQ)

Q: Can SFH601-3 replace SFH609-3 in all applications?

A: The SFH601-3 is functionally equivalent in package, channel count, current transfer ratio, output type, and saturation characteristics. However, the isolation voltage differs: SFH609-3 provides 7500Vpk while SFH601-3 provides 5000Vrms. Substitution is valid only when the application isolation requirement does not exceed 5000Vrms.

Q: What are the key differences between these parts?

A: The primary differences are isolation voltage rating and switching speed. The SFH609-3 has higher isolation voltage. The SFH601-3 has faster turn-off time (2.3µs versus 23µs) and faster rise/fall times (2µs versus 3µs and 14µs respectively).

Q: Are both parts pin-compatible?

A: Both parts use the 6-DIP (0.300", 7.62mm) package with through-hole mounting. Pin compatibility is confirmed for direct PCB substitution.

Q: Do both parts meet the same compliance standards?

A: Yes. Both SFH609-3 and SFH601-3 are ROHS3 compliant and REACH unaffected.

Q: What is the operating temperature range for both parts?

A: Both parts operate from -55°C to 100°C.