SI8720BC-A-IP Digital Isolator Equivalent & Substitute Parts

Part Overview

The SI8720BC-A-IP is a general purpose digital isolator manufactured by Skyworks Solutions Inc., featuring 3750Vrms isolation voltage and 1-channel unidirectional configuration. This capacitive coupling isolator operates across 2.5V to 5.5V supply range with 15Mbps data rate capability and 35kV/µs common mode transient immunity. The device is housed in an 8-SMD Gull Wing package and maintains active product status with full inventory availability.

Equivalent substitute parts are necessary when primary component availability is limited, when procurement lead times require alternative sourcing, or when design flexibility permits selection from qualified alternatives meeting identical electrical and mechanical specifications.

Substiute Parts

SI8720BC-A-IP

Skyworks Solutions Inc.In Stock: 1210SI8720BC-A-IP Datasheet

Current PartRFQ

SI8715BC-A-IP

Skyworks Solutions Inc.In Stock: 1684SI8715BC-A-IP Datasheet

Parametric EquivalentRFQ

SI8719BC-A-IP

Skyworks Solutions Inc.In Stock: 1155SI8719BC-A-IP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SI8720BC-A-IP is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Isolation voltage: 3750Vrms
• Number of channels: 1
• Channel configuration: Unidirectional
• Data rate: 15Mbps
• Common mode transient immunity: 35kV/µs minimum
• Propagation delay specifications: 50ns maximum (both tpLH and tpHL)
• Pulse width distortion: 25ns maximum
• Supply voltage range: 2.5V ~ 5.5V
• Operating temperature range: -40°C ~ 125°C
• Package type: 8-SMD, Gull Wing
• Technology: Capacitive Coupling
• Isolated power capability: No

The substitute parts SI8715BC-A-IP and SI8719BC-A-IP meet all mandatory electrical and mechanical parameters, enabling direct substitution in applications requiring this specific isolator configuration.

Parameter Comparison

Engineering Selection Recommendations

All three parts—SI8720BC-A-IP, SI8715BC-A-IP, and SI8719BC-A-IP—maintain active product status from Skyworks Solutions Inc. and are fully equivalent for direct substitution based on provided electrical and mechanical specifications.

SI8715BC-A-IP carries RoHS3 compliance and REACH Unaffected status. SI8719BC-A-IP carries RoHS3 compliance. Both substitute parts are suitable for applications requiring regulatory compliance documentation.

Selection between these three parts should be based on component availability, procurement lead times, and inventory levels at the time of sourcing. All parts are functionally interchangeable within the specified parameter ranges.

Frequently Asked Questions (FAQ)

Q: Can SI8715BC-A-IP or SI8719BC-A-IP be used as direct replacements for SI8720BC-A-IP?

A: Yes. All three parts are parametrically equivalent across isolation voltage, channel configuration, data rate, timing specifications, supply voltage range, operating temperature, and package type. Direct substitution is supported without circuit modification.

Q: Are there differences in RoHS or environmental compliance between these parts?

A: SI8715BC-A-IP and SI8719BC-A-IP both carry RoHS3 compliance status. SI8720BC-A-IP compliance status was not provided in the specification data. If regulatory compliance documentation is required, SI8715BC-A-IP or SI8719BC-A-IP should be selected.

Q: Do all three parts use the same package footprint?

A: Yes. All three parts use 8-SMD Gull Wing surface mount packaging, enabling identical PCB layout and assembly processes.

Q: What is the basis for substitution between these parts?

A: Substitution is based on matching all critical electrical parameters including isolation voltage, channel count, data rate, propagation delay, common mode transient immunity, and supply voltage specifications, combined with identical mechanical packaging and mounting type.

Q: Are there any inventory or lead time considerations?

A: SI8715BC-A-IP has 1632 pieces in stock, SI8719BC-A-IP has 1103 pieces in stock, and SI8720BC-A-IP has 1173 pieces in stock. Availability may vary by supplier and time of order.