SFH640-3X019 Equivalent & Substitute Parts

Part Overview

The SFH640-3X019 is an optoisolator transistor with base output manufactured by Vishay Semiconductor Opto Division. This component provides 5300Vrms isolation voltage in a 6-SMD surface mount package, designed for applications requiring galvanic isolation with transistor output capability. The SFH640-3X019 is classified as obsolete, making identification of active equivalent parts essential for ongoing production and maintenance applications.

Substiute Parts

SFH640-3X019

Vishay Semiconductor Opto DivisionIn Stock: 771SFH640-3X019 Datasheet

Current PartRFQ

SFH640-3X007

Vishay Semiconductor Opto DivisionIn Stock: 1177SFH640-3X007 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The SFH640-3X007 qualifies as a parametric equivalent to the SFH640-3X019 based on the following critical parameters:

• Identical isolation voltage rating: 5300Vrms
• Matching channel configuration: 1 channel
• Identical output type: Transistor with Base
• Matching current transfer ratio specifications: 100% to 200% @ 10mA
• Identical maximum output voltage: 300V
• Identical maximum output current: 50mA per channel
• Matching switching characteristics: 5µs turn-on, 6µs turn-off
• Identical rise and fall times: 2.5µs and 5.5µs respectively
• Matching operating temperature range: -55°C to 100°C
• Identical package and mounting specifications: 6-SMD, Gull Wing, Surface Mount

The primary distinction between these parts is product status and packaging format. The SFH640-3X007 is classified as active, whereas the SFH640-3X019 is obsolete.

Parameter Comparison

Engineering Selection Recommendations

The SFH640-3X007 is the direct parametric equivalent for applications currently using the SFH640-3X019. Both components meet ROHS3 compliance requirements and carry identical electrical and thermal specifications. The SFH640-3X007 maintains active product status, ensuring continued availability and manufacturing support. Both parts carry REACH Unaffected classification and identical moisture sensitivity ratings, confirming compatibility in equivalent supply chain and storage conditions. Pin-to-pin compatibility and identical package specifications enable direct substitution without circuit redesign.

Frequently Asked Questions (FAQ)

Q: Can the SFH640-3X007 be used as a direct replacement for the SFH640-3X019?

A: Yes. Both components share identical electrical specifications, including isolation voltage, current transfer ratio, output voltage and current ratings, switching times, and operating temperature range. The 6-SMD Gull Wing package is identical, enabling direct PCB substitution.

Q: What is the primary reason for substitution?

A: The SFH640-3X019 is classified as obsolete. The SFH640-3X007 is the active equivalent part from the same manufacturer, ensuring continued component availability and manufacturing support.

Q: Are there any compliance differences between these parts?

A: No. Both parts are ROHS3 compliant, REACH Unaffected, and carry identical moisture sensitivity levels (MSL 1 - Unlimited). Compliance certifications are equivalent.

Q: Do these parts require different PCB layouts or assembly processes?

A: No. Both components use identical 6-SMD Gull Wing surface mount packaging. PCB layouts, solder profiles, and assembly processes remain unchanged.

Q: What are the key parameters that define substitution eligibility?

A: Substitution is determined by matching isolation voltage (5300Vrms), channel count (1), output type (Transistor with Base), current transfer ratio range (100-200% @ 10mA), output voltage and current ratings (300V, 50mA), switching characteristics (5µs/6µs), and operating temperature range (-55°C to 100°C).