IL 717 General Purpose Digital Isolator - Equivalent & Substitute Parts

Part Overview

The IL 717 is a general purpose digital isolator manufactured by NVE Corp utilizing Giant Magnetoresistive (GMR) technology. This 4-channel isolator provides 2500Vrms isolation with a data rate of 110Mbps and common mode transient immunity of 100kV/µs. The device is housed in a 16-SOIC surface mount package and operates across a supply voltage range of 3V to 5.5V with an operating temperature range of -40°C to 100°C. The IL 717 maintains active product status and is available in high inventory quantities. Substitute parts are identified based on matching electrical isolation specifications, channel configuration, data rate performance, and physical package compatibility.

Substiute Parts

IL 717

NVE Corp/Isolation ProductsIn Stock: 877IL 717 Datasheet

Current PartRFQ

IL 717E

NVE Corp/Isolation ProductsIn Stock: 2617IL 717E Datasheet

DirectRFQ

HCPL-902J

Broadcom LimitedIn Stock: 1961HCPL-902J Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the IL 717 are classified based on the following critical parameters that determine functional equivalence:

Primary Matching Criteria:

• Voltage isolation rating of 2500Vrms
• 4-channel configuration with 3/1 input distribution
• Unidirectional channel type
• Data rate of 110Mbps or equivalent
• 16-SOIC surface mount package with 0.295" width (7.50mm)
• Supply voltage range compatibility (3V ~ 5.5V)

Acceptable Parameter Variations:

• Common Mode Transient Immunity: Minimum 15kV/µs (IL 717 specifies 100kV/µs)
• Operating temperature range may extend beyond the base specification
• Packaging format (Tube vs. standard) does not affect electrical equivalence
• RoHS compliance status varies between direct substitutes

The IL 717E represents a direct manufacturer equivalent with identical electrical specifications and packaging. The HCPL-902J from Broadcom Limited is classified as a similar substitute with equivalent isolation voltage, channel count, and package format, though with reduced common mode transient immunity and extended operating temperature range.

Parameter Comparison

Engineering Selection Recommendations

IL 717E (Direct Substitute): The IL 717E is the primary equivalent substitute for the IL 717. Both parts are manufactured by NVE Corp and share identical electrical specifications, channel configuration, and package format. The IL 717E differs only in packaging format (Tube) and RoHS compliance status (ROHS3 Compliant). Selection of IL 717E is appropriate when RoHS3 compliance is required or when tube packaging is preferred for automated assembly processes. Inventory availability for IL 717E is higher (2508 Pcs) compared to IL 717 (840 Pcs).

HCPL-902J (Similar Substitute): The HCPL-902J from Broadcom Limited is a similar substitute that maintains the same isolation voltage, channel count, input distribution, and package format as the IL 717. The HCPL-902J exhibits reduced common mode transient immunity (15kV/µs versus 100kV/µs) and an extended operating temperature range (-55°C to 125°C versus -40°C to 100°C). Selection of HCPL-902J is appropriate for applications where the lower common mode transient immunity specification is acceptable and extended temperature operation is beneficial. The HCPL-902J maintains active product status with 1916 Pcs inventory availability.

Compliance Considerations: The IL 717 and HCPL-902J are both RoHS non-compliant. The IL 717E provides ROHS3 compliance for applications requiring regulatory adherence. All three parts maintain REACH Unaffected status.

Frequently Asked Questions (FAQ)

Q: Can IL 717E be used as a direct replacement for IL 717 in existing designs?

A: Yes. The IL 717E is electrically and mechanically equivalent to the IL 717. Both parts share identical isolation voltage (2500Vrms), channel configuration (4 channels, 3/1 input distribution), data rate (110Mbps), propagation delay (15ns), and 16-SOIC package format. The primary differences are packaging format (Tube for IL 717E) and RoHS compliance status (ROHS3 for IL 717E). No circuit modifications are required.

Q: What is the key difference between IL 717 and HCPL-902J?

A: The primary electrical difference is common mode transient immunity. The IL 717 specifies 100kV/µs while the HCPL-902J specifies 15kV/µs. Both parts maintain 2500Vrms isolation, 4-channel configuration, 110Mbps data rate, and identical propagation delay. The HCPL-902J offers an extended operating temperature range (-55°C to 125°C versus -40°C to 100°C). Selection depends on whether the application requires the higher common mode transient immunity of the IL 717.

Q: Are all three parts pin-compatible?

A: Yes. The IL 717, IL 717E, and HCPL-902J all use the 16-SOIC (0.295", 7.50mm Width) package format with identical pin assignments for 4-channel unidirectional isolation. All three parts are surface mount compatible with the same PCB footprint.

Q: Which substitute should be selected for high-reliability applications?

A: Selection depends on specific application requirements. The IL 717E provides ROHS3 compliance for regulatory environments. The HCPL-902J provides extended operating temperature range (-55°C to 125°C) for extreme temperature applications. The IL 717 maintains the highest common mode transient immunity (100kV/µs) for applications with high-speed switching noise. All three parts maintain active product status and GMR technology.

Q: What is the supply voltage compatibility across all three parts?

A: All three parts (IL 717, IL 717E, and HCPL-902J) operate across the identical supply voltage range of 3V to 5.5V. No voltage regulation modifications are required when substituting between these parts.

Q: Are there inventory considerations when selecting a substitute?

A: Yes. Current inventory levels are: IL 717 (840 Pcs), IL 717E (2508 Pcs), and HCPL-902J (1916 Pcs). The IL 717E offers the highest inventory availability. Selection based on inventory availability should be balanced against specific application requirements for RoHS compliance and common mode transient immunity.