SFH609-2 Equivalent & Substitute Parts

Part Overview

The SFH609-2 is an optoisolator transistor with base output manufactured by Isocom Components 2004 LTD. This single-channel device provides galvanic isolation rated at 7500Vpk with a 6-DIP through-hole package configuration. The component is actively produced and maintains full RoHS3 compliance. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained across the specified parameter range.

Substiute Parts

SFH609-2

Isocom Components 2004 LTDIn Stock: 1348SFH609-2 Datasheet

Current PartRFQ

SFH601-2

Vishay Semiconductor Opto DivisionIn Stock: 16696SFH601-2 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SFH609-2 is determined by the following critical parameters:

• Single-channel configuration with transistor output and base connection
• Isolation voltage rating of 7500Vpk or higher
• Current transfer ratio range of 63% to 125% at 10mA input
• 6-DIP through-hole package with 0.300" (7.62mm) pitch
• Maximum output voltage of 90V or greater
• Saturation voltage (Vce) of 400mV or lower
• Operating temperature range of -55°C to 100°C or wider
• RoHS3 compliance and REACH unaffected status

The SFH601-2 meets these substitution criteria with equivalent electrical characteristics and identical mechanical packaging.

Parameter Comparison

Engineering Selection Recommendations

The SFH601-2 optoisolator from Vishya Semiconductor Opto Division is an active product with full RoHS3 compliance and REACH unaffected status, matching the regulatory profile of the SFH609-2. Both components share identical current transfer ratio specifications, saturation voltage ratings, forward current limits, and operating temperature ranges. The mechanical compatibility is confirmed through matching 6-DIP through-hole package specifications.

Selection between these parts depends on application-specific isolation voltage requirements. The SFH609-2 provides 7500Vpk isolation, while the SFH601-2 provides 5300Vrms isolation. Applications requiring the higher isolation rating of the SFH609-2 should not substitute with the SFH601-2. Conversely, applications designed for 5300Vrms isolation or lower can utilize the SFH601-2, which offers faster switching response times (3µs turn-on versus 4.2µs, and 2.3µs turn-off versus 23µs).

Frequently Asked Questions (FAQ)

Q: Can the SFH601-2 replace the SFH609-2 in all applications?

A: No. The SFH601-2 has a lower isolation voltage rating (5300Vrms) compared to the SFH609-2 (7500Vpk). Substitution is only valid for applications where the lower isolation rating is acceptable.

Q: Are the package dimensions identical between these parts?

A: Yes. Both the SFH609-2 and SFH601-2 use the 6-DIP (0.300", 7.62mm) through-hole package with identical pin spacing and mounting requirements.

Q: Do both parts meet the same compliance standards?

A: Yes. Both components are RoHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with the same HTSUS code (8541.49.8000).

Q: What is the primary electrical difference between these optoisolators?

A: The primary difference is isolation voltage rating. The SFH609-2 is rated for 7500Vpk isolation, while the SFH601-2 is rated for 5300Vrms isolation. Both maintain identical current transfer ratio specifications (63% to 125% @ 10mA) and saturation voltage (400mV maximum).

Q: Which part has faster switching characteristics?

A: The SFH601-2 exhibits faster switching response with turn-on time of 3µs and turn-off time of 2.3µs, compared to the SFH609-2 with 4.2µs turn-on and 23µs turn-off times.