SI86S620EC-IS Digital Isolator Equivalent & Substitute Parts

Part Overview

The SI86S620EC-IS is a general purpose digital isolator manufactured by Skyworks Solutions Inc. operating at 3750Vrms isolation voltage with 2 unidirectional channels. This capacitive coupling isolator supports data rates up to 150Mbps with 100kV/µs common mode transient immunity in an 8-SOIC surface mount package. The part is active in production status with 1007 units currently in stock. Substitute parts are identified to provide design flexibility, inventory alternatives, and application-specific grade options while maintaining electrical and mechanical compatibility.

Substiute Parts

SI86S620EC-IS

Skyworks Solutions Inc.In Stock: 1091SI86S620EC-IS Datasheet

Current PartRFQ

SI86S620BC-AS

Skyworks Solutions Inc.In Stock: 1108SI86S620BC-AS Datasheet

Parametric EquivalentRFQ

SI86S620BC-IS

Skyworks Solutions Inc.In Stock: 1235SI86S620BC-IS Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SI86S620EC-IS are identified based on strict electrical and mechanical parameter matching within the Si86S62x series. All substitute parts maintain identical specifications for isolation voltage (3750Vrms), channel configuration (2 unidirectional), data rate (150Mbps), common mode transient immunity (100kV/µs), propagation delay, pulse width distortion, rise/fall time, supply voltage range, operating temperature range, package type (8-SOIC), and mounting type (surface mount).

The substitution logic is determined by the following key parameters:

• Isolation voltage rating: 3750Vrms
• Channel count and configuration: 2 unidirectional channels
• Data rate capability: 150Mbps minimum
• Common mode transient immunity: 100kV/µs minimum
• Package footprint: 8-SOIC (0.154", 3.90mm Width)
• Supply voltage compatibility: 2.25V to 5.5V
• Operating temperature range: -40°C to 125°C

Differences between substitute parts relate to temperature grade designation (industrial vs. automotive) and associated qualifications, which do not affect core electrical performance or physical compatibility.

Parameter Comparison

Engineering Selection Recommendations

All three parts—SI86S620EC-IS, SI86S620BC-IS, and SI86S620BC-AS—are active production devices with identical electrical performance and package specifications. Selection between these parts is based on application requirements and compliance certifications.

SI86S620EC-IS is suitable for general industrial applications requiring a 3750Vrms digital isolator with 2 unidirectional channels and 150Mbps data rate capability.

SI86S620BC-IS provides an industrial-grade alternative with identical electrical specifications and higher current inventory (1140 units vs. 1007 units).

SI86S620BC-AS is designated for automotive applications and carries AEC-Q100 qualification with ROHS3 compliance. This part is required for designs subject to automotive industry standards and environmental regulations. Current inventory is 1060 units.

Selection should be based on application grade requirements (industrial vs. automotive) and regulatory compliance needs. All parts are pin-compatible and functionally interchangeable within their respective application domains.

Frequently Asked Questions (FAQ)

Q: Are the SI86S620EC-IS, SI86S620BC-IS, and SI86S620BC-AS electrically interchangeable?

A: Yes. All three parts share identical electrical specifications including isolation voltage (3750Vrms), channel configuration (2 unidirectional), data rate (150Mbps), common mode transient immunity (100kV/µs), propagation delay (13.5ns), and supply voltage range (2.25V to 5.5V). They are functionally equivalent for circuit operation.

Q: Can the SI86S620BC-AS be used in place of the SI86S620EC-IS?

A: The SI86S620BC-AS is electrically and mechanically compatible with the SI86S620EC-IS. However, the SI86S620BC-AS is qualified to AEC-Q100 automotive standards and carries ROHS3 compliance. Use of the automotive-grade part in industrial applications is permissible from a technical standpoint, though it may represent over-specification for non-automotive designs.

Q: Can the SI86S620EC-IS be used in automotive applications?

A: The SI86S620EC-IS is an industrial-grade part without automotive qualification. For automotive applications requiring AEC-Q100 compliance, the SI86S620BC-AS is the appropriate selection.

Q: Are all three parts available in the same package?

A: Yes. All three parts use the 8-SOIC (0.154", 3.90mm Width) surface mount package with identical pin configuration and footprint. They are directly substitutable at the PCB level.

Q: What is the difference between the SI86S620BC-IS and SI86S620BC-AS?

A: The primary difference is application grade. The SI86S620BC-IS is industrial-grade, while the SI86S620BC-AS is automotive-grade with AEC-Q100 qualification and ROHS3 compliance. Electrical and mechanical specifications are identical.

Q: Do all three parts have the same moisture sensitivity level?

A: Yes. All three parts have Moisture Sensitivity Level (MSL) 2 with a 1-year floor life rating.

Q: What is the current inventory status for each part?

A: SI86S620EC-IS has 1007 units in stock, SI86S620BC-IS has 1140 units, and SI86S620BC-AS has 1060 units. All parts are available as new original stock in tube packaging.