ISLT1002 Equivalent & Substitute Parts

Part Overview

The ISLT1002 is an optoisolator with transistor output manufactured by Isocom Components 2004 LTD. This 4-pin surface mount device provides galvanic isolation up to 5000Vrms with a single channel and DC input type. The component is classified as Active status and is suitable for applications requiring electrical isolation between input and output circuits.

Substitute parts are identified when equivalent electrical and mechanical parameters are maintained within the allowed specifications for optoisolator transistor output devices. Alternatives may be required due to inventory availability, lead time considerations, or specific packaging preferences while maintaining functional compatibility.

Substiute Parts

ISLT1002

Isocom Components 2004 LTDIn Stock: 797ISLT1002 Datasheet

Current PartRFQ

ISLT1002TA

Isocom Components 2004 LTDIn Stock: 4138ISLT1002TA Datasheet

Parametric EquivalentRFQ

ISLT1002V

Isocom Components 2004 LTDIn Stock: 3756ISLT1002V Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ISLT1002 are qualified based on the following critical parameters that define functional equivalence:

• Voltage - Isolation: 5000Vrms (mandatory match)
• Number of Channels: 1 (mandatory match)
• Output Type: Transistor (mandatory match)
• Current Transfer Ratio range: 63% to 125% @ 10mA (mandatory match)
• Voltage - Output (Max): 80V (mandatory match)
• Current - Output / Channel: 50mA (mandatory match)
• Vce Saturation (Max): 300mV (mandatory match)
• Operating Temperature: -55°C ~ 110°C (mandatory match)
• Mounting Type: Surface Mount (mandatory match)
• Package / Case: 4-SMD, Gull Wing (mandatory match)
• RoHS Status: ROHS3 Compliant (mandatory match)

The identified substitutes ISLT1002TA and ISLT1002V maintain all critical electrical and mechanical parameters. Variations in timing specifications (Turn On / Turn Off Time, Rise / Fall Time) and series designation do not affect functional compatibility within the defined parameter envelope.

Parameter Comparison

Engineering Selection Recommendations

All three parts—ISLT1002, ISLT1002TA, and ISLT1002V—are Active status components manufactured by Isocom Components 2004 LTD and maintain ROHS3 compliance and REACH Unaffected status. Selection between these parts is based on the following factors:

ISLT1002: Primary specification with documented Turn On / Turn Off Time of 4µs and 3µs respectively, and Rise / Fall Time of 2µs and 3µs.

ISLT1002TA: Parametric equivalent with Turn On / Turn Off Time not specified in documentation. Rise / Fall Time matches the primary part at 2µs and 3µs. Higher inventory availability (4049 Pcs) supports supply chain flexibility.

ISLT1002V: Parametric equivalent with documented Turn On / Turn Off Time of 4µs and 3µs. Rise / Fall Time specified as 18µs and 18µs (Max), representing a difference in switching performance. Series designation T100xV differs from ISLT100X. Inventory availability of 3686 Pcs supports alternative sourcing.

All three parts satisfy the electrical and mechanical requirements for direct substitution within the 4-SMD, Gull Wing surface mount package format.

Frequently Asked Questions (FAQ)

Q: Can ISLT1002TA be used as a direct replacement for ISLT1002?

A: Yes. ISLT1002TA maintains all critical electrical parameters including isolation voltage (5000Vrms), current transfer ratio (63% to 125% @ 10mA), output voltage (80V max), output current (50mA), and saturation voltage (300mV max). Both are packaged in 4-SMD, Gull Wing format with identical mounting type and operating temperature range. The absence of Turn On / Turn Off Time specification in ISLT1002TA documentation does not affect functional compatibility when these timing parameters are not critical to the application.

Q: What is the difference between ISLT1002 and ISLT1002V?

A: Both parts are electrically equivalent across all critical parameters. The primary difference is in Rise / Fall Time specification: ISLT1002 specifies 2µs and 3µs, while ISLT1002V specifies 18µs and 18µs (Max). This represents slower switching performance in ISLT1002V. Both maintain the same isolation voltage, current transfer ratio, output ratings, and operating temperature range. Series designation differs (ISLT100X versus T100xV), but package and mounting type remain identical.

Q: Are all three parts suitable for the same PCB layout?

A: Yes. ISLT1002, ISLT1002TA, and ISLT1002V are all specified as 4-SMD, Gull Wing surface mount packages with identical mounting type. PCB footprints and assembly processes remain compatible across all three parts.

Q: What compliance certifications apply to these substitute parts?

A: All three parts maintain ROHS3 compliance and REACH Unaffected status. Moisture Sensitivity Level (MSL) is rated as 1 (Unlimited) for all parts, indicating no moisture sensitivity restrictions during storage and handling.

Q: Which substitute part should be selected for new designs?

A: Selection depends on application-specific timing requirements. If Rise / Fall Time of 2µs and 3µs is required, ISLT1002 or ISLT1002TA are appropriate. If slower switching performance (18µs Rise / Fall Time) is acceptable, ISLT1002V provides an alternative. All three parts are Active status with established supply availability.