IL 612A-3 Digital Isolator Equivalent & Substitute Parts

Part Overview

The IL 612A-3 is a General Purpose Digital Isolator manufactured by NVE Corp/Isolation Products, part of the IsoLoop® series. This component provides 2500Vrms isolation across 2 channels with a data rate of 10Mbps and 15kV/µs common mode transient immunity. The device is housed in an 8-SOIC surface mount package and operates across a supply voltage range of 3V to 5.5V.

The IL 612A-3 carries an Obsolete product status. Identifying equivalent substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support ongoing production requirements for applications currently utilizing this isolator.

Substiute Parts

IL 612A-3

NVE Corp/Isolation ProductsIn Stock: 995IL 612A-3 Datasheet

Current PartRFQ

IL 612A-3E

NVE Corp/Isolation ProductsIn Stock: 2153IL 612A-3E Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the IL 612A-3 is determined by the following critical parameters:

Electrical Compatibility Requirements:

• Isolation voltage: 2500Vrms (minimum)
• Number of channels: 2
• Data rate: 10Mbps (minimum)
• Common mode transient immunity: 15kV/µs (minimum)
• Supply voltage range: 3V ~ 5.5V (compatible overlap)
• Channel configuration: Unidirectional, 1 input per side

Mechanical Compatibility Requirements:

• Package type: 8-SOIC (0.154", 3.90mm Width)
• Mounting type: Surface Mount

Manufacturing Specifications:

• Technology: GMR (Giant Magnetoresistive)
• Manufacturer: NVE Corp/Isolation Products

The IL 612A-3E qualifies as a direct substitute based on matching all electrical and mechanical parameters within the allowed specifications for this product category.

Parameter Comparison

Engineering Selection Recommendations

The IL 612A-3E is the direct substitute for the obsolete IL 612A-3. Both components share identical electrical and mechanical specifications across all critical isolation, data rate, and package parameters.

Product Status Consideration: The IL 612A-3 is classified as Obsolete, while the IL 612A-3E maintains Active product status. This distinction is significant for long-term supply chain planning and design continuity.

Compliance Improvement: The IL 612A-3E achieves ROHS3 compliance, whereas the IL 612A-3 is RoHS non-compliant. This represents an improvement in environmental and regulatory alignment for new designs or production transitions.

Operating Temperature Range: The IL 612A-3 supports an extended operating temperature range of -55°C to 125°C, while the IL 612A-3E operates within -40°C to 85°C. Applications requiring operation below -40°C or above 85°C must retain the IL 612A-3 if available from existing inventory.

Packaging Difference: The IL 612A-3 is supplied in standard packaging, while the IL 612A-3E is supplied in Tube packaging. This affects handling and storage procedures but does not impact electrical or mechanical compatibility.

Frequently Asked Questions (FAQ)

Q: Can the IL 612A-3E directly replace the IL 612A-3 in existing designs?

A: Yes, the IL 612A-3E provides direct substitution for the IL 612A-3 across all critical electrical parameters: isolation voltage (2500Vrms), channel count (2), data rate (10Mbps), common mode transient immunity (15kV/µs), supply voltage range (3V ~ 5.5V), and package type (8-SOIC). Pin-to-pin compatibility is maintained.

Q: What is the difference in operating temperature range between these parts?

A: The IL 612A-3 operates from -55°C to 125°C, while the IL 612A-3E operates from -40°C to 85°C. If your application requires operation below -40°C or above 85°C, the IL 612A-3 must be used if available. For standard industrial and commercial temperature ranges, the IL 612A-3E is suitable.

Q: Why is the IL 612A-3 listed as Obsolete?

A: The IL 612A-3 carries an Obsolete product status designation. The IL 612A-3E, as the Active equivalent, is the recommended part for new designs and ongoing production. Existing IL 612A-3 inventory may be available but should not be specified for new applications.

Q: Are there any compliance differences between these parts?

A: Yes. The IL 612A-3 is RoHS non-compliant, while the IL 612A-3E is ROHS3 compliant. For applications subject to RoHS regulations or customer requirements, the IL 612A-3E is the appropriate selection.

Q: Does packaging affect the electrical performance?

A: No. The IL 612A-3 and IL 612A-3E differ only in packaging format (standard versus Tube). Both use the same 8-SOIC (0.154", 3.90mm Width) surface mount package. Packaging differences affect handling, storage, and supply chain logistics but not electrical or mechanical performance.

Q: What is the propagation delay specification for these isolators?

A: Both the IL 612A-3 and IL 612A-3E specify propagation delay of 75ns maximum for tpLH and 25ns maximum for tpHL, ensuring consistent timing performance across substitution.

Q: Are both parts from the same manufacturer?

A: Yes. Both the IL 612A-3 and IL 612A-3E are manufactured by NVE Corp/Isolation Products and are part of the IsoLoop® series using GMR (Giant Magnetoresistive) technology.