ISP621-2BLSMT&R Equivalent & Substitute Parts

Part Overview

The ISP621-2BLSMT&R is a dual-channel optoisolator with transistor output manufactured by Isocom Components 2004 LTD. This component provides galvanic isolation up to 5300Vrms and is designed for applications requiring electrical isolation between input and output circuits. The part is currently active in production with full RoHS3 compliance and unlimited moisture sensitivity rating. Substitute parts may be required due to inventory constraints, supply chain disruptions, or design flexibility in component sourcing.

Substiute Parts

ISP621-2BLSMT&R

Isocom Components 2004 LTDIn Stock: 993ISP621-2BLSMT&R Datasheet

Current PartRFQ

ISP621-2XBLSMT&R

Isocom Components 2004 LTDIn Stock: 1958ISP621-2XBLSMT&R Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ISP621-2BLSMT&R is based on strict electrical and mechanical parameter matching within the ISP621-2 series. The substitute part must maintain identical specifications across the following critical parameters:

• Number of Channels: 2
• Voltage - Isolation: 5300Vrms
• Current Transfer Ratio range: 200% to 600% @ 5mA
• Output Type: Transistor
• Maximum Output Voltage: 55V
• Maximum Output Current per Channel: 50mA
• Vce Saturation: 400mV maximum
• Operating Temperature Range: -30°C to 100°C
• Package Configuration: 8-SMD, Gull Wing
• Surface Mount compatibility
• RoHS3 compliance
• MSL rating: 1 (Unlimited)

Parts meeting these exact specifications are considered direct parametric equivalents and may be used interchangeably in circuit designs.

Parameter Comparison

Engineering Selection Recommendations

Both the ISP621-2BLSMT&R and ISP621-2XBLSMT&R are active production components from Isocom Components 2004 LTD with identical electrical and mechanical specifications. Both parts carry ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements for industrial and commercial applications. The ISP621-2XBLSMT&R variant offers higher inventory availability (1926 pcs vs. 977 pcs), which may provide supply chain advantages. Selection between these parts should be based on availability and procurement lead times, as they are functionally equivalent for all circuit design purposes.

Frequently Asked Questions (FAQ)

Q: Can ISP621-2XBLSMT&R be used as a direct replacement for ISP621-2BLSMT&R?

A: Yes. Both parts are from the same ISP621-2 series and share identical electrical parameters, isolation voltage, current transfer ratios, output characteristics, and package specifications. They are direct parametric equivalents.

Q: Are there any differences in the 8-SMD package between these parts?

A: No. Both parts use the same 8-SMD, Gull Wing package configuration with identical surface mount characteristics and PCB footprint compatibility.

Q: Do both parts meet the same compliance standards?

A: Yes. Both ISP621-2BLSMT&R and ISP621-2XBLSMT&R are ROHS3 compliant, REACH unaffected, and carry MSL rating 1 (Unlimited), meeting identical regulatory and environmental requirements.

Q: What is the significance of the "X" designation in ISP621-2XBLSMT&R?

A: The "X" designation indicates a variant within the ISP621-2 series. However, based on the provided specifications, this variant maintains all electrical and mechanical parameters identical to the ISP621-2BLSMT&R, making it a direct substitute.

Q: Are the isolation voltage and current transfer ratios identical?

A: Yes. Both parts provide 5300Vrms isolation voltage and identical current transfer ratio specifications of 200% to 600% @ 5mA, ensuring equivalent performance in isolation and signal transfer applications.

Q: Can these parts be used interchangeably in production?

A: Yes. The identical specifications across all critical parameters allow these parts to be used interchangeably without circuit redesign or performance impact.