ISP817SM Equivalent & Substitute Parts

Part Overview

The ISP817SM is an optoisolator with transistor output manufactured by Isocom Components 2004 LTD. This single-channel device provides 5300Vrms isolation with DC input and transistor output configuration in a 4-SMD surface mount package. The part is currently active in production with full inventory availability. Equivalent and substitute parts within the ISP817 series maintain identical electrical and mechanical specifications, enabling direct replacement in applications requiring optoisolation functionality.

Substiute Parts

ISP817SM

Isocom Components 2004 LTDIn Stock: 1024ISP817SM Datasheet

Current PartRFQ

ISP817XASM

Isocom Components 2004 LTDIn Stock: 1247ISP817XASM Datasheet

Parametric EquivalentRFQ

ISP817XBSM

Isocom Components 2004 LTDIn Stock: 1083ISP817XBSM Datasheet

Parametric EquivalentRFQ

ISP817XCSM

Isocom Components 2004 LTDIn Stock: 1177ISP817XCSM Datasheet

Parametric EquivalentRFQ

ISP817XDSM

Isocom Components 2004 LTDIn Stock: 1214ISP817XDSM Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts within the ISP817 series are classified as parametric equivalents based on the following criteria:

Electrical Parameters (Must Match):

• Voltage - Isolation: 5300Vrms
• Number of Channels: 1
• Current Transfer Ratio: 50% (Min) @ 5mA, 600% (Max) @ 5mA
• Output Type: Transistor
• Voltage - Output (Max): 80V
• Current - Output / Channel: 50mA
• Vce Saturation (Max): 200mV
• Operating Temperature: -55°C ~ 110°C
• Input Type: DC
• Voltage - Forward (Vf) (Typ): 1.2V
• Current - DC Forward (If) (Max): 50mA

Mechanical Parameters (Must Match):

• Package / Case: 4-SMD (0.300", 7.62mm)
• Mounting Type: Surface Mount
• Supplier Device Package: 4-SMD

Compliance & Status (Must Match):

• Product Status: Active
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)
• REACH Status: REACH Unaffected

The substitute parts ISP817XASM, ISP817XBSM, ISP817XCSM, and ISP817XDSM meet all specified electrical, mechanical, and compliance requirements for direct substitution with ISP817SM.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts (ISP817XASM, ISP817XBSM, ISP817XCSM, ISP817XDSM) are qualified for direct replacement with ISP817SM based on the following factors:

Product Status: All parts maintain Active status in production, ensuring continued availability and manufacturing consistency.

Compliance Certifications: All substitute parts carry ROHS3 compliance and REACH Unaffected status, meeting regulatory requirements for electronic component deployment in regulated markets.

Electrical Equivalence: Substitute parts maintain identical isolation voltage, current transfer ratios, output voltage ratings, and saturation characteristics, ensuring functional compatibility in circuit applications.

Mechanical Compatibility: All parts utilize identical 4-SMD surface mount packaging with matching footprint dimensions (0.300", 7.62mm), enabling direct PCB placement without layout modifications.

Thermal Performance: Operating temperature range remains constant across all parts (-55°C ~ 110°C), supporting equivalent thermal design margins.

Selection among substitute parts may be based on inventory availability or supply chain considerations, as all parts are electrically and mechanically interchangeable.

Frequently Asked Questions (FAQ)

Q: Can ISP817XASM, ISP817XBSM, ISP817XCSM, or ISP817XDSM be used as direct replacements for ISP817SM?

A: Yes. All four substitute parts are parametric equivalents meeting identical electrical specifications for isolation voltage (5300Vrms), current transfer ratio (50%-600% @ 5mA), output characteristics (80V max, 50mA per channel), and operating temperature range (-55°C ~ 110°C). Mechanical compatibility is confirmed through identical 4-SMD surface mount packaging.

Q: Are there any differences in the Rise/Fall Time specifications between ISP817SM and the substitute parts?

A: The provided specifications indicate Rise/Fall Time values of 3µs and 4µs for ISP817SM, and 4µs and 3µs for substitute parts ISP817XASM, ISP817XBSM, ISP817XCSM, and ISP817XDSM. These represent the same timing parameters with values presented in different order notation.

Q: Do all substitute parts meet the same compliance requirements as ISP817SM?

A: Yes. All substitute parts carry ROHS3 compliance, REACH Unaffected status, and Moisture Sensitivity Level 1 (Unlimited), matching the compliance profile of ISP817SM.

Q: Can these parts be used interchangeably on the same PCB assembly?

A: Yes. All parts share identical 4-SMD (0.300", 7.62mm) surface mount packaging and footprint dimensions, enabling direct PCB placement without layout or assembly process modifications.

Q: What factors should determine selection between ISP817SM and its substitute parts?

A: Selection should be based on supply chain availability, inventory levels, and lead time requirements. All parts are electrically and mechanically equivalent, so component choice does not affect circuit performance or design validation.