ISP817DX Equivalent & Substitute Parts

Part Overview

The ISP817DX is an optoisolator with transistor output manufactured by Isocom Components 2004 LTD. This component provides galvanic isolation up to 5300Vrms with a single channel configuration in a 4-DIP package. The part is currently active in production with 828 units in stock. Alternative models become necessary when inventory constraints occur or when specific packaging or compliance requirements necessitate component substitution within the same functional class.

Substiute Parts

ISP817DX

Isocom Components 2004 LTDIn Stock: 891ISP817DX Datasheet

Current PartRFQ

ISP817CX

Isocom Components 2004 LTDIn Stock: 2718ISP817CX Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The ISP817DX belongs to the ISP817 series of optoisolators. Substitution within this series is based on strict electrical and mechanical parameter equivalence. The primary substitution criterion is identical performance across all specified electrical parameters: isolation voltage, current transfer ratio range, output voltage and current ratings, switching characteristics, and operating temperature range. Both parts must maintain the same 4-DIP through-hole package configuration and comply with the same regulatory standards (ROHS3 and REACH Unaffected status).

The ISP817CX qualifies as a parametric equivalent based on matching all critical electrical specifications and package requirements. Both components share the same base product number (ISP817) and deliver identical functional performance within the specified operating conditions.

Parameter Comparison

Engineering Selection Recommendations

Both ISP817DX and ISP817CX are active production components manufactured by Isocom Components 2004 LTD with full ROHS3 compliance and REACH Unaffected status. Selection between these parts should be based on availability and inventory levels. The ISP817CX currently maintains higher inventory (2685 units) compared to the ISP817DX (828 units), making it suitable for high-volume procurement scenarios. Both components are electrically and mechanically interchangeable with no performance differentiation across the specified parameter set.

Frequently Asked Questions (FAQ)

Q: Can ISP817CX be used as a direct replacement for ISP817DX? A: Yes. Both components are parametric equivalents with identical electrical specifications, output characteristics, isolation voltage, switching performance, and 4-DIP package configuration. No circuit modifications are required.

Q: Are there any differences in compliance or certifications between these parts? A: No. Both ISP817DX and ISP817CX carry identical ROHS3 compliance and REACH Unaffected status. Both are manufactured by the same supplier and meet the same regulatory requirements.

Q: What determines substitution eligibility for optoisolators in the ISP817 series? A: Substitution is based on matching isolation voltage, current transfer ratio range, output voltage and current ratings, switching characteristics (rise/fall time), operating temperature range, package type, and mounting configuration. All these parameters must be identical between the main part and substitute.

Q: Does package type affect substitution? A: Yes. Both parts must use the same package configuration. ISP817DX and ISP817CX both use 4-DIP (0.300", 7.62mm) through-hole packages, making them mechanically compatible for PCB assembly.

Q: Which part should be selected for new designs? A: Either part is suitable for new designs. Selection should be based on current supplier inventory, lead times, and procurement requirements. Both components are active production items with equivalent long-term availability.