IL 611-1E Digital Isolator Equivalent & Substitute Parts

Part Overview

The IL 611-1E is a General Purpose Digital Isolator manufactured by NVE Corp/Isolation Products, featuring 2500Vrms isolation voltage, 2 channels, and 100Mbps data rate with GMR (Giant Magnetoresistive) technology. The device is packaged in 8-MSOP form factor and operates across -40°C to 85°C temperature range with 3V to 5.5V supply voltage.

This part is currently discontinued at DiGi Electronics. Equivalent and substitute parts are available to maintain design continuity and ensure component availability for new production runs and field replacements.

Substiute Parts

IL 611-1E

NVE Corp/Isolation ProductsIn Stock: 772IL 611-1E Datasheet

Current PartRFQ

IL 611-1ETR7

NVE Corp/Isolation ProductsIn Stock: 6074IL 611-1ETR7 Datasheet

DirectRFQ

IL 610-1E

NVE Corp/Isolation ProductsIn Stock: 1165IL 610-1E Datasheet

Parametric EquivalentRFQ

HCPL-9000-500

Broadcom LimitedIn Stock: 931HCPL-9000-500 Datasheet

SimilarRFQ

HCPL-9000-500E

Broadcom LimitedIn Stock: 992HCPL-9000-500E Datasheet

SimilarRFQ

HCPL-9030-300E

Broadcom LimitedIn Stock: 742HCPL-9030-300E Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the IL 611-1E is determined by the following critical parameters:

Primary Substitution Criteria:

• Isolation voltage: 2500Vrms (mandatory match)
• Number of channels: 2 (mandatory match)
• Common Mode Transient Immunity: 15kV/µs (mandatory match)
• Supply voltage range: 3V ~ 5.5V (mandatory match)
• Channel type: Unidirectional (mandatory match)
• Technology: GMR (Giant Magnetoresistive) (mandatory match)
• Package compatibility: 8-MSOP or equivalent surface mount form factor

Secondary Compatibility Parameters:

• Data rate: 100Mbps or higher
• Propagation delay: 15ns or lower
• Operating temperature range: -40°C to 85°C minimum
• RoHS compliance status

Direct Substitute: IL 611-1ETR7 is a direct substitute with identical electrical specifications and packaging. It differs in product status (Active vs. Discontinued), data rate (40Mbps vs. 100Mbps), and propagation delay (25ns vs. 15ns), making it suitable for applications where lower data rates are acceptable.

Parametric Equivalent: IL 610-1E is a parametric equivalent with single-channel configuration instead of dual-channel. It maintains identical isolation voltage, CMTI, supply voltage, and package specifications but serves applications requiring only one isolation channel.

Similar Alternatives: HCPL-9000-500, HCPL-9000-500E, and HCPL-9030-300E are Broadcom Limited alternatives with matching isolation voltage, CMTI, and supply voltage specifications. These parts differ in package form factor (8-DIP Gull Wing vs. 8-MSOP), channel configuration, and data rate (110MBd vs. 100Mbps).

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Same Form Factor and Channel Count):

IL 611-1ETR7 is the primary direct substitute for IL 611-1E. Both parts share identical isolation voltage (2500Vrms), channel configuration (2 channels), CMTI (15kV/µs), supply voltage range (3V ~ 5.5V), and 8-MSOP packaging. IL 611-1ETR7 is currently Active in production status, ensuring long-term availability. The trade-off is reduced data rate (40Mbps vs. 100Mbps) and increased propagation delay (25ns vs. 15ns). This substitute is suitable for applications where the lower data rate specification is acceptable within system timing requirements.

For Single-Channel Applications:

IL 610-1E serves as a parametric equivalent for designs requiring only one isolation channel. It maintains all critical electrical parameters (2500Vrms isolation, 15kV/µs CMTI, 100Mbps data rate, 15ns propagation delay) and identical 8-MSOP packaging. However, IL 610-1E is also discontinued at DiGi Electronics, limiting its use for new production.

For Alternative Manufacturer Solutions:

HCPL-9030-300E (Broadcom Limited) provides a 2-channel alternative with matching isolation voltage, CMTI, and supply voltage specifications. It offers superior data rate (110MBd) and lower pulse width distortion (3ns). The package differs (8-SO Gull Wing vs. 8-MSOP), requiring PCB layout modification. HCPL-9030-300E is Active and ROHS3 Compliant, supporting extended operating temperature range (-55°C to 125°C).

HCPL-9000-500E (Broadcom Limited) is a single-channel alternative with identical electrical performance to HCPL-9030-300E but in 8-DIP Gull Wing package. This option requires significant PCB redesign due to package incompatibility.

Compliance Considerations:

All recommended substitutes maintain ROHS3 compliance and GMR technology foundation. IL 611-1ETR7 and IL 610-1E retain NVE Corp manufacturing continuity. Broadcom alternatives (HCPL-9030-300E, HCPL-9000-500E) provide established supply chain alternatives with Active product status.

Frequently Asked Questions (FAQ)

Q: Can IL 611-1ETR7 replace IL 611-1E in all applications?

A: IL 611-1ETR7 is electrically compatible for applications where 40Mbps data rate and 25ns propagation delay meet system requirements. Both parts share 2500Vrms isolation, 2-channel configuration, 15kV/µs CMTI, and 8-MSOP packaging. Verify that your application's timing budget accommodates the 10ns additional propagation delay compared to the original IL 611-1E specification.

Q: What is the key difference between IL 611-1E and IL 610-1E?

A: IL 610-1E is a single-channel variant of IL 611-1E. Both maintain identical isolation voltage (2500Vrms), CMTI (15kV/µs), data rate (100Mbps), propagation delay (15ns), and 8-MSOP packaging. Select IL 610-1E only for designs requiring one isolation channel. IL 610-1E is also discontinued, limiting availability.

Q: Are Broadcom HCPL-9000 and HCPL-9030 series compatible with IL 611-1E?

A: Broadcom parts are electrically compatible in terms of isolation voltage (2500Vrms), CMTI (15kV/µs), and supply voltage (3V ~ 5.5V). However, they use different package form factors (8-DIP Gull Wing or 8-SO Gull Wing vs. 8-MSOP), requiring PCB layout redesign. HCPL-9030-300E offers 2-channel configuration matching IL 611-1E channel count. HCPL-9000-500E provides single-channel operation.

Q: What packaging considerations apply when switching from IL 611-1E to Broadcom alternatives?

A: IL 611-1E uses 8-MSOP (0.118", 3.00mm Width) surface mount package. HCPL-9030-300E uses 8-SO Gull Wing package, and HCPL-9000-500E uses 8-DIP Gull Wing package. These form factors differ in pin pitch, body dimensions, and lead configuration. PCB footprint modification is required for Broadcom alternatives. Verify mechanical clearance and thermal management requirements for your application.

Q: Is IL 611-1ETR7 available in the same packaging as IL 611-1E?

A: Yes. IL 611-1ETR7 uses identical 8-MSOP (0.118", 3.00mm Width) packaging as IL 611-1E. No PCB layout modification is required for direct substitution. IL 611-1ETR7 is supplied in Cut Tape (CT) and Digi-Reel® packaging formats, with 5981 pieces currently in stock.

Q: What are the RoHS compliance differences among substitute parts?

A: IL 611-1E, IL 611-1ETR7, IL 610-1E, HCPL-9030-300E, and HCPL-9000-500E are all ROHS3 Compliant. No compliance trade-offs exist among these substitutes. All parts meet current environmental and regulatory requirements.

Q: How do operating temperature ranges compare?

A: IL 611-1E and IL 611-1ETR7 operate across -40°C to 85°C. IL 610-1E maintains the same range. Broadcom alternatives (HCPL-9030-300E and HCPL-9000-500E) support extended range of -55°C to 125°C, providing additional thermal margin for demanding environments.

Q: What is the significance of GMR technology in these parts?

A: All substitute parts use GMR (Giant Magnetoresistive) technology for isolation. This technology foundation ensures consistent electrical performance across isolation voltage, CMTI, and data rate specifications. GMR technology is standard across NVE Corp IsoLoop® series and Broadcom HCPL series alternatives.