ACT96MD19SN Equivalent & Substitute Parts

Part Overview

The ACT96MD19SN is a 19-position circular connector plug with female sockets, manufactured by TE Connectivity Deutsch Connectors. This connector is designed for aerospace and military applications, featuring crimp termination, threaded fastening, and gold-plated mating contacts. The part is discontinued at DiGi Electronics, necessitating identification of equivalent substitute components that maintain electrical and mechanical compatibility with existing system designs.

Key Parameters

Parameter	Value
Connector Type	Plug, Female Sockets
Number of Positions	19
Shell Size - Insert	15-19
Shell Size, MIL	D
Termination	Crimp
Fastening Type	Threaded
Mounting Type	Free Hanging (In-Line)
Orientation	N (Normal)
Contact Finish - Mating	Gold
Contact Finish Thickness - Mating	50.0µin (1.27µm)
Contact Material	Copper Alloy
Shielding	Shielded
Operating Temperature	-65°C ~ 200°C
Current Rating	7.5A
Ingress Protection	Environment Resistant
Series	MIL-DTL-38999 Series III, ACT

Substitute Part Grouping Explanation

Substitution of the ACT96MD19SN is determined by strict adherence to the following parameters:

Critical Compatibility Parameters:

19-position configuration
Plug connector with female sockets
Shell size MIL-D (15-19 insert size)
Crimp termination method
Threaded fastening
Normal (N) orientation
Gold contact finish with 50.0µin (1.27µm) thickness
Copper alloy contact material
Shielded configuration
Free hanging (in-line) mounting
Operating temperature range of -65°C to 200°C minimum
MIL-DTL-38999 Series III compliance

Substitute parts are grouped based on their conformance to these parameters. Parts that maintain all critical electrical and mechanical specifications are classified as direct equivalents. Variations in shell material composition, shell finish type, or additional coupling features do not affect functional substitutability when all core parameters remain constant.

Parameter Comparison

Parameter	ACT96MD19SN	CTVS06RF-15-19S-506	D38999/26KD19SN	D38999/26MD19SN	D38999/26WD19SNLC
Manufacturer	TE Connectivity Deutsch	Amphenol Aerospace Operations	Conesys	Amphenol Aerospace Operations	Amphenol Aerospace Operations
Connector Type	Plug, Female Sockets	Plug, Female Sockets	Plug, Female Sockets	Plug, Female Sockets	Plug Housing
Number of Positions	19	19	19	19	19
Shell Size - Insert	15-19	15-19	15-19	15-19	15-19
Shell Size, MIL	D	Not Specified	D	D	D
Termination	Crimp	Crimp	Crimp	Crimp	Crimp
Fastening Type	Threaded	Threaded	Threaded	Threaded	Threaded
Mounting Type	Free Hanging (In-Line)	Free Hanging (In-Line)	Free Hanging (In-Line)	Free Hanging (In-Line)	Free Hanging (In-Line)
Orientation	N (Normal)	N (Normal)	N (Normal)	N (Normal)	N (Normal)
Contact Finish - Mating	Gold	Gold	Gold	Gold	Not Specified
Contact Finish Thickness - Mating	50.0µin (1.27µm)	50.0µin (1.27µm)	50.0µin (1.27µm)	50.0µin (1.27µm)	Not Specified
Contact Material	Copper Alloy	Copper Alloy	Copper Alloy	Copper Alloy	Not Specified
Shielding	Shielded	Shielded	Shielded	Shielded	Shielded
Operating Temperature	-65°C ~ 200°C	-65°C ~ 200°C	-65°C ~ 200°C	-65°C ~ 200°C	-65°C ~ 175°C
Series	MIL-DTL-38999 Series III, ACT	MIL-DTL-38999 Series III, Tri-Start™ TV	MIL-DTL-38999 Series III	MIL-DTL-38999 Series III, Tri-Start™ TV	MIL-DTL-38999 Series III, Tri-Start™ TV
Product Status	Discontinued	Active	Active	Active	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS non-compliant

Engineering Selection Recommendations

Primary Substitute Candidates:

CTVS06RF-15-19S-506 (Amphenol Aerospace Operations) and D38999/26MD19SN (Amphenol Aerospace Operations) are the preferred substitutes for the ACT96MD19SN. Both parts maintain all critical electrical and mechanical parameters, including 19-position configuration, MIL-DTL-38999 Series III compliance, gold contact finish at 50.0µin thickness, copper alloy contacts, and operating temperature range of -65°C to 200°C. Both parts are currently active in production and ROHS3 compliant, providing long-term availability and regulatory compliance advantages over the discontinued original part.

Secondary Substitute Candidate:

D38999/26KD19SN (Conesys) provides full electrical and mechanical compatibility with the ACT96MD19SN. This part maintains all critical parameters and is ROHS3 compliant. The primary distinction is the stainless steel shell material with passivated finish, compared to the composite shell of the original part. This material difference does not affect functional substitutability and provides enhanced corrosion resistance suitable for aerospace and military applications.

Alternative Consideration:

D38999/26WD19SNLC (Amphenol Aerospace Operations) is a plug housing variant designed for female sockets. This part is not a direct connector substitute but rather a housing component. It maintains the 19-position, MIL-DTL-38999 Series III configuration and free hanging mounting type. The operating temperature range is -65°C to 175°C, which is 25°C lower than the original part. This part is suitable only when housing replacement is required and the reduced upper temperature limit is acceptable for the application.

Frequently Asked Questions (FAQ)

Q: Can CTVS06RF-15-19S-506 be used as a direct replacement for ACT96MD19SN?

A: Yes. CTVS06RF-15-19S-506 maintains all critical electrical and mechanical parameters required for substitution: 19-position configuration, MIL-DTL-38999 Series III compliance, gold contact finish at 50.0µin thickness, copper alloy contacts, shielded configuration, threaded fastening, and operating temperature range of -65°C to 200°C. The part is currently in active production status.

Q: What is the difference between D38999/26MD19SN and D38999/26KD19SN?

A: Both parts are functionally equivalent substitutes for the ACT96MD19SN. The primary difference is shell material composition: D38999/26MD19SN features a composite shell with electroless nickel finish, while D38999/26KD19SN features a stainless steel shell with passivated finish. Both maintain identical electrical specifications, contact materials, and operating parameters. The stainless steel variant provides enhanced corrosion resistance.

Q: Why is D38999/26WD19SNLC not recommended as a primary substitute?

A: D38999/26WD19SNLC is a plug housing component rather than a complete connector plug. It is designed to house female sockets but does not include the complete connector assembly. Additionally, the operating temperature range is limited to -65°C to 175°C, which is 25°C lower than the original ACT96MD19SN specification of -65°C to 200°C. This part is suitable only for housing replacement applications where the reduced temperature limit is acceptable.

Q: Are all substitute parts MIL-DTL-38999 Series III compliant?

A: Yes. All substitute parts listed maintain MIL-DTL-38999 Series III compliance, ensuring compatibility with military and aerospace specifications. The original ACT96MD19SN is also MIL-DTL-38999 Series III compliant.

Q: What is the significance of the 50.0µin (1.27µm) contact finish thickness?

A: The contact finish thickness of 50.0µin (1.27µm) is a critical parameter that determines electrical performance and contact reliability. All recommended substitute parts maintain this exact specification, ensuring equivalent mating contact performance and signal integrity.

Q: Can I use these substitutes in applications requiring RoHS compliance?

A: CTVS06RF-15-19S-506, D38999/26KD19SN, and D38999/26MD19SN are all ROHS3 compliant. The original ACT96MD19SN and D38999/26WD19SNLC are RoHS non-compliant. For applications requiring RoHS compliance, select from the three compliant alternatives.

Q: What is the current inventory status of substitute parts?

A: CTVS06RF-15-19S-506 has 974 pieces in stock, D38999/26KD19SN has 954 pieces in stock, and D38999/26MD19SN has 706 pieces in stock. All substitute parts are currently available in production quantities.

Q: Are there any differences in the coupling nut features between substitutes?

A: CTVS06RF-15-19S-506 and D38999/26WD19SNLC feature self-locking coupling nuts. D38999/26KD19SN features a coupling nut with firewall usage capability. D38999/26MD19SN features a standard coupling nut. All variants maintain threaded fastening compatibility with the original ACT96MD19SN specification.

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