ACT90MH55SB Equivalent & Substitute Parts

Part Overview

The ACT90MH55SB is a 55-position circular connector receptacle manufactured by TE Connectivity Deutsch Connectors, designed for panel mount applications with female sockets and crimp termination. This connector is qualified to MIL-DTL-38999 Series III specifications and is rated for aerospace and military applications across an operating temperature range of -65°C to 200°C.

The ACT90MH55SB is currently discontinued at DiGi Electronics. Equivalent substitute parts are available from Amphenol Aerospace Operations within the Tri-Start™ TV series, which maintain compatibility with the same MIL-DTL-38999 Series III qualification and core electrical and mechanical parameters.

Substiute Parts

ACT90MH55SB

TE Connectivity Deutsch ConnectorsIn Stock: 847ACT90MH55SB Datasheet

Current PartRFQ

CTVP00RW-23-55JB

Amphenol Aerospace OperationsIn Stock: 1196CTVP00RW-23-55JB Datasheet

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CTVP00RW-23-55JB-LC

Amphenol Aerospace OperationsIn Stock: 858CTVP00RW-23-55JB-LC Datasheet

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CTVP00RW-23-55SB

Amphenol Aerospace OperationsIn Stock: 824CTVP00RW-23-55SB Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the ACT90MH55SB is determined by strict equivalence across the following critical parameters:

Primary Substitution Criteria:

• Connector type: Receptacle with female sockets
• Position count: 55 positions
• Shell size designation: 23-55
• Mounting configuration: Panel mount with flange
• Termination method: Crimp
• Fastening mechanism: Threaded
• Orientation: B
• Shell material: Composite
• Contact finish: Gold plating on mating surfaces
• Shielding: Shielded design
• Contact material: Copper alloy
• Insert material: Thermoplastic
• Series qualification: MIL-DTL-38999 Series III

The substitute parts listed below maintain these core parameters and are therefore electrically and mechanically compatible with the ACT90MH55SB for panel mount receptacle applications.

Parameter Comparison

Engineering Selection Recommendations

CTVP00RW-23-55SB is the primary substitute for the ACT90MH55SB. This part maintains identical core specifications including 55-position configuration, shell size 23-55, panel mount flange, crimp termination, and MIL-DTL-38999 Series III qualification. The CTVP00RW-23-55SB is currently active in production and available in inventory. The contact finish thickness matches the original specification at 50.0µin (1.27µm). The operating temperature range is -65°C to 175°C, which is 25°C lower than the original part's maximum rating.

CTVP00RW-23-55JB is an alternative substitute with identical mechanical and electrical parameters to the CTVP00RW-23-55SB. This part features a thicker gold contact finish at 100.0µin (2.54µm), providing enhanced contact durability. The operating temperature range is -65°C to 175°C. This part is currently active in production.

CTVP00RW-23-55JB-LC is a receptacle housing component without integrated contacts. This part is suitable only for applications requiring a housing shell assembly where contacts are sourced separately. This part is not a direct substitute for complete connector assemblies but serves specialized applications where housing and contacts are procured independently.

All substitute parts are qualified to MIL-DTL-38999 Series III and maintain RoHS non-compliant status consistent with the original part. All parts carry MSL Rating 1 (Unlimited).

Frequently Asked Questions (FAQ)

Q: Can CTVP00RW-23-55SB be used as a direct replacement for ACT90MH55SB?

A: Yes. The CTVP00RW-23-55SB maintains all critical electrical and mechanical parameters including 55-position count, shell size 23-55, panel mount configuration, crimp termination, threaded fastening, composite shell material, gold contact finish, shielding, and MIL-DTL-38999 Series III qualification. The operating temperature range is -65°C to 175°C, which is 25°C lower than the original specification.

Q: What is the difference between CTVP00RW-23-55SB and CTVP00RW-23-55JB?

A: Both parts are mechanically and electrically equivalent. The primary difference is the gold contact finish thickness: CTVP00RW-23-55SB has 50.0µin (1.27µm) thickness, matching the original ACT90MH55SB specification, while CTVP00RW-23-55JB has 100.0µin (2.54µm) thickness, providing increased contact durability.

Q: Is CTVP00RW-23-55JB-LC a suitable substitute?

A: CTVP00RW-23-55JB-LC is a receptacle housing component without integrated contacts. This part is not a direct substitute for the complete ACT90MH55SB connector assembly. It is suitable only for applications where the housing shell is procured separately from contacts.

Q: What is the operating temperature difference between the original and substitute parts?

A: The ACT90MH55SB operates from -65°C to 200°C. The Amphenol substitute parts (CTVP00RW-23-55SB and CTVP00RW-23-55JB) operate from -65°C to 175°C. Applications requiring operation above 175°C cannot use these substitutes.

Q: Are all substitute parts currently available?

A: Yes. CTVP00RW-23-55SB, CTVP00RW-23-55JB, and CTVP00RW-23-55JB-LC are all active products with current inventory availability from Amphenol Aerospace Operations.

Q: Do the substitute parts meet the same military specifications?

A: Yes. All substitute parts are qualified to MIL-DTL-38999 Series III, the same specification as the original ACT90MH55SB.

Q: What is the packaging difference between CTVP00RW-23-55SB and CTVP00RW-23-55JB?

A: Both parts are supplied in bulk packaging. CTVP00RW-23-55JB-LC is also supplied in bulk packaging.

Q: Are the substitute parts RoHS compliant?

A: No. All substitute parts maintain RoHS non-compliant status consistent with the original ACT90MH55SB, reflecting their military and aerospace qualification requirements.