SC3111ESX Equivalent & Substitute Parts

Part Overview

The SC3111ESX is a gate driver IC manufactured by onsemi, classified as a Power Management (PMIC) component. This device functions as a low-side gate driver in SOT23-5 packaging and is designed for driving N-channel MOSFETs in power conversion applications. The SC3111ESX is currently listed as obsolete, necessitating identification of functionally equivalent active alternatives to maintain design continuity and ensure long-term component availability for new production and field service applications.

Substiute Parts

SC3111ESX

onsemiIn Stock: 1001SC3111ESX Datasheet

Current PartRFQ

FAN3111ESX

onsemiIn Stock: 70066FAN3111ESX Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The FAN3111ESX qualifies as a direct substitute for the SC3111ESX based on the following alignment of critical parameters:

Functional Equivalence Criteria:

• Identical gate driver topology: Low-side, single-channel configuration
• Matching package designation: SOT23-5 (SC-74A, SOT-753)
• Identical manufacturer: onsemi
• Equivalent gate type: N-channel MOSFET driver
• Non-inverting input configuration

Regulatory & Compliance Alignment:

• RoHS3 compliance maintained
• REACH unaffected status preserved
• MSL 1 (Unlimited) moisture sensitivity rating

Operational Compatibility:

• Supply voltage range: 4.5V ~ 18V
• Peak output current: 1.4A source / 1.4A sink
• Operating temperature range: -40°C ~ 150°C (TJ)
• Rise/Fall time specifications: 9ns / 8ns (typical)

The FAN3111ESX is currently in active production status, providing assured long-term availability compared to the obsolete SC3111ESX.

Parameter Comparison

Engineering Selection Recommendations

The FAN3111ESX is the appropriate substitute for the obsolete SC3111ESX in new designs and production applications. Selection is based on the following engineering factors:

Compliance & Regulatory Alignment: The FAN3111ESX maintains identical RoHS3 compliance and REACH unaffected status as the original SC3111ESX, ensuring regulatory requirements are preserved across design transitions.

Product Lifecycle Status: The SC3111ESX is obsolete with no path to continued supply. The FAN3111ESX is in active production status, providing assured component availability and manufacturing continuity.

Functional Equivalence: Both devices share identical gate driver topology, packaging footprint (SOT23-5), and input/output configuration. The FAN3111ESX provides specified electrical parameters (supply voltage 4.5V ~ 18V, peak output current 1.4A, operating temperature -40°C ~ 150°C) that define the performance envelope for low-side gate driving applications.

Manufacturing & Handling: Both components maintain MSL 1 (Unlimited) moisture sensitivity rating, indicating identical handling and storage requirements with no additional moisture control measures required.

Frequently Asked Questions (FAQ)

Q: Can the FAN3111ESX be used as a direct replacement for the SC3111ESX without PCB modifications?

A: Yes. Both devices are packaged in SOT23-5 (SC-74A, SOT-753) with identical pin configurations and non-inverting input topology. No PCB layout changes are required for pin-to-pin substitution.

Q: What is the primary reason for substituting the SC3111ESX?

A: The SC3111ESX is obsolete and no longer manufactured. The FAN3111ESX is the active equivalent from the same manufacturer (onsemi) with identical functional specifications and regulatory compliance.

Q: Are there any differences in electrical performance between the SC3111ESX and FAN3111ESX?

A: The FAN3111ESX provides specified electrical parameters: supply voltage 4.5V ~ 18V, peak output current 1.4A (source and sink), and operating temperature range -40°C ~ 150°C. These specifications define the performance envelope for both devices in low-side gate driving applications.

Q: Do both parts have the same moisture sensitivity requirements?

A: Yes. Both the SC3111ESX and FAN3111ESX are rated MSL 1 (Unlimited), indicating no moisture sensitivity restrictions and identical handling requirements.

Q: Is the FAN3111ESX available in the same packaging options as the SC3111ESX?

A: Yes. The FAN3111ESX is available in Cut Tape (CT) and Digi-Reel® packaging formats, with the device package designated as SOT-23-5, equivalent to the original SOT23-5 specification.

Q: Are there any compliance or certification differences between the two parts?

A: No. Both parts maintain ROHS3 compliance and REACH unaffected status. Regulatory and environmental compliance requirements are identical.