Sensata-Crydom 6101A DC Input Module 24V Equivalent & Substitute Parts

Part Overview

The Sensata-Crydom 6101A is a DC Input Module designed for 24VDC supply applications with 5VDC output capability. This module converts 24VDC input signals to 5VDC logic-level outputs, providing galvanic isolation and signal conditioning for industrial control systems. The 6101A is classified as obsolete, making identification of functionally equivalent active alternatives essential for new designs, maintenance, and system upgrades. Substitute parts must maintain electrical compatibility across input voltage, output voltage, current ratings, and switching characteristics to ensure seamless integration into existing or new applications.

Key Parameters

Parameter	Value	Unit	Significance for Substitution
Voltage - Input	24	VDC	Primary operating voltage; must match exactly
Voltage - Output	5	VDC	Logic output level; must match exactly
Current - Input	34	mA	Input current draw; critical for power supply sizing
Current - Output	18	mA	Output drive capability; determines load compatibility
Turn On Time	5	ms	Response speed; affects system timing requirements
Turn Off Time	5	ms	Response speed; affects system timing requirements
Type	DC Input Module	—	Functional category; must remain consistent
Features	Hold Down Screw	—	Mechanical mounting requirement

Substitute Part Grouping Explanation

Substitute parts for the 6101A are grouped based on strict electrical and mechanical compatibility criteria. All substitute candidates must satisfy the following mandatory parameters:

Input voltage: 24VDC (exact match)
Output voltage: 5VDC (exact match)
Input current: 34 mA (exact match)
Output current: minimum 16 mA (equal to or greater than original 18 mA specification)
Functional type: DC Input Module
Mechanical feature: Hold Down Screw mounting

The 6101A specifies two direct substitutes: the Sensata-Crydom IDC5 and the TE Connectivity Potter & Brumfield Relays IDC-5. Both alternatives maintain identical input/output voltage and current specifications. Differences in switching speed (1 ms vs. 5 ms) represent performance improvements rather than incompatibilities, as faster response times are backward-compatible with systems designed for the original 5 ms specification. Both substitutes are active products with current manufacturing status and improved compliance certifications.

Parameter Comparison

Parameter	6101A (Original)	IDC5 (Sensata-Crydom)	IDC-5 (TE Connectivity)
Manufacturer	Sensata-Crydom	Sensata-Crydom	TE Connectivity Potter & Brumfield Relays
Voltage - Input	24 VDC	24 VDC	24 VDC
Voltage - Output	5 VDC	5 VDC	5 VDC
Current - Input	34 mA	34 mA	34 mA
Current - Output	18 mA	16 mA	18 mA
Turn On Time	5 ms	1 ms	1 ms
Turn Off Time	5 ms	1 ms	1 ms
Type	DC Input Module	DC Input Module	DC Input Module
Color	White	White	White
Style	Standard	Standard	Standard
Features	Hold Down Screw	Hold Down Screw	Hold Down Screw
Product Status	Obsolete	Active	Active
ECCN	EAR99	EAR99	EAR99
HTSUS	8536.41.0030	8536.41.0030	8536.41.0030

Engineering Selection Recommendations

Both substitute parts are suitable replacements for the obsolete 6101A based on electrical and mechanical compatibility. Selection between IDC5 and IDC-5 should consider the following factors:

Sensata-Crydom IDC5: Maintains manufacturer continuity with the original 6101A. Offers improved switching performance (1 ms response time) while reducing output current specification to 16 mA. Compliant with RoHS3 standards. Recommended for applications prioritizing manufacturer consistency and where the 16 mA output current meets system requirements.

TE Connectivity Potter & Brumfield Relays IDC-5: Provides cross-manufacturer substitution with identical output current specification (18 mA) to the original 6101A. Compliant with RoHS3 standards. Subject to REACH compliance requirements. Recommended for applications requiring exact output current matching and where multi-source component qualification is acceptable.

Both parts are actively manufactured and available in production quantities, eliminating supply chain risk associated with the obsolete 6101A.

Frequently Asked Questions (FAQ)

Q: Can the IDC5 be used as a direct replacement for the 6101A if my application requires 18 mA output current?

A: The IDC5 specifies 16 mA output current versus the 6101A's 18 mA. Substitution is permissible only if your application load current does not exceed 16 mA. If your design requires the full 18 mA output capability, the TE Connectivity IDC-5 is the appropriate choice.

Q: What is the impact of the faster switching speed (1 ms vs. 5 ms) when substituting with IDC5 or IDC-5?

A: Faster switching response is a performance enhancement and does not create compatibility issues. Systems designed for 5 ms response will function correctly with 1 ms response modules. No circuit modifications are required.

Q: Are there packaging differences between the 6101A and the substitute parts?

A: The 6101A is specified with "-" packaging notation, while both IDC5 and IDC-5 are supplied in Tray packaging. Both maintain identical mechanical form factor with Hold Down Screw mounting. Tray packaging is standard for active production parts and does not affect functional compatibility.

Q: What compliance certifications should I verify for my application?

A: All three parts share identical ECCN (EAR99) and HTSUS (8536.41.0030) classifications. Both IDC5 and IDC-5 are RoHS3 compliant. The IDC-5 is subject to REACH compliance requirements; verify applicability to your end-use market and application geography.

Q: Can I use either substitute interchangeably, or should I select one over the other?

A: Selection depends on your specific output current requirement. If your application requires 18 mA output current, use IDC-5. If 16 mA output current is acceptable, either IDC5 or IDC-5 may be used. Both are actively manufactured and available in production quantities.

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