IDC24F DC Input Module - Equivalent & Substitute Parts

Part Overview

The IDC24F is a DC input module manufactured by Sensata-Crydom, designed to accept 4–32VDC supply input and deliver 24VDC output at 16mA. This module features hold-down screw mounting and is classified as obsolete. Due to its obsolete status, equivalent substitute parts are necessary for ongoing system maintenance, repair, and new component sourcing where direct replacement is required.

Substiute Parts

IDC24F

Sensata-CrydomIn Stock: 1019IDC24F Datasheet

Current PartRFQ

IDC24

Sensata-CrydomIn Stock: 1023IDC24 Datasheet

MFR RecommendedRFQ

IDC-24

TE Connectivity Potter & Brumfield RelaysIn Stock: 1171IDC-24 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the IDC24F are identified based on the following critical parameters that determine functional compatibility:

• Output voltage specification (24VDC)
• Output current capability (minimum 16mA)
• Hold-down screw mounting feature
• DC input module type classification
• IDC series designation

The IDC24 and IDC-24 are listed as manufacturer-recognized substitutes. Both maintain the 24VDC output specification and hold-down screw feature. However, they differ in input voltage range and switching response times, which must be evaluated against system requirements.

Parameter Comparison

Engineering Selection Recommendations

IDC24 (Sensata-Crydom): This part maintains manufacturer continuity with the IDC24F and carries RoHS compliance. However, it is designated "Not For New Designs," indicating limited long-term availability. The input voltage is fixed at 24VDC, eliminating the wide input range (4–32VDC) of the IDC24F. Switching response times are significantly slower (1ms vs. 0.05ms turn-on). This substitute is suitable for direct replacement in existing systems where 24VDC input is guaranteed and slower switching response is acceptable.

IDC-24 (TE Connectivity Potter & Brumfield Relays): This part carries Active product status and ROHS3 compliance, indicating current manufacturing support and regulatory alignment. It is manufactured by a different supplier (TE Connectivity) and provides equivalent 24VDC output with slightly higher output current (18mA vs. 16mA). Input voltage is fixed at 24VDC, and switching response times match the IDC24 (1ms). This substitute is recommended for applications requiring long-term component availability and regulatory compliance, provided that 24VDC input supply is available and the slower switching response is compatible with system timing requirements.

Frequently Asked Questions (FAQ)

Q: Can IDC24 or IDC-24 directly replace IDC24F in all applications?

A: Direct replacement depends on input voltage availability. The IDC24F accepts 4–32VDC input, while both substitutes require fixed 24VDC input. If your system supplies only 24VDC, either substitute is functionally compatible. If variable input voltage (4–32VDC) is present, neither substitute will operate correctly.

Q: What is the impact of the slower switching response times in the substitutes?

A: The IDC24F switches in 0.05ms (on) and 0.10ms (off), while IDC24 and IDC-24 switch in 1ms (both on and off). This 10–20× slower response may affect timing-critical applications. Verify that your system can tolerate 1ms switching delays before selecting a substitute.

Q: Which substitute should I choose for new system designs?

A: The IDC-24 (TE Connectivity) is the only part with Active product status and current manufacturing support. It is the appropriate choice for new designs requiring long-term component availability.

Q: Are there packaging differences between these parts?

A: IDC24F packaging is not specified. IDC24 is supplied in Tray packaging, while IDC-24 is supplied in Bulk packaging. Confirm packaging compatibility with your assembly and storage requirements.

Q: Do all three parts meet RoHS requirements?

A: IDC24F RoHS status is not specified. IDC24 is RoHS Compliant. IDC-24 is ROHS3 Compliant. If RoHS compliance is mandatory for your application, IDC-24 is the recommended choice.