MS3475L22-55B Equivalent & Substitute Parts

Part Overview

The MS3475L22-55B is a 55-position circular connector plug housing manufactured by TE Connectivity Deutsch Connectors. This connector is designed for female socket applications with free-hanging (in-line) mounting and bayonet lock fastening. The part operates across a temperature range of -55°C to 200°C and features electroless nickel plating on an aluminum alloy shell with shielding.

The MS3475L22-55B is discontinued at DiGi Electronics. Equivalent substitute parts are available from ITT Cannon, LLC, offering identical or functionally compatible configurations with active product status and current inventory availability.

Key Parameters

Parameter	Value
Connector Type	Plug Housing
Number of Positions	55
Shell Size - Insert	22-55
Contact Type	Crimp
Contact Size	20
Mounting Type	Free Hanging (In-Line)
Fastening Type	Bayonet Lock
Shell Material	Aluminum Alloy
Operating Temperature Range	-55°C ~ 200°C
Ingress Protection	Environment Resistant
Insert Material	Plastic
Contact Shape	Circular
Shielding	Shielded
Coupling Feature	Coupling Nut

Substitute Part Grouping Explanation

Substitution eligibility for the MS3475L22-55B is determined by the following critical parameters:

Core Compatibility Parameters:

55-position configuration
Shell size 22-55
Contact size 20
Free-hanging (in-line) mounting
Bayonet lock fastening
Aluminum alloy shell construction
Plastic insert material
Circular contact shape
Operating temperature range -55°C to 200°C
Environment resistant ingress protection
Coupling nut feature

Variable Parameters (Substitution Allowed):

Shell finish (electroless nickel, chromate over cadmium, anodized)
Housing color (silver, olive drab)
Shielding configuration (shielded or unshielded)
Manufacturer (TE Connectivity Deutsch Connectors or ITT Cannon, LLC)

All substitute parts listed maintain identical core mechanical and electrical specifications while offering variations in finish and shielding options to accommodate different application requirements.

Parameter Comparison

Parameter	MS3475L22-55B	PV75L22-55SL	PV75W22-55SL	PV76A22-55SL	PV76L22-55SL	PV76W22-55SL
Manufacturer	TE Connectivity Deutsch	ITT Cannon, LLC	ITT Cannon, LLC	ITT Cannon, LLC	ITT Cannon, LLC	ITT Cannon, LLC
Product Status	Discontinued	Active	Active	Active	Active	Active
Number of Positions	55	55	55	55	55	55
Shell Size - Insert	22-55	22-55	22-55	22-55	22-55	22-55
Contact Type	Crimp	Crimp	Crimp	Crimp	Crimp	Crimp
Contact Size	20	20	20	20	20	20
Mounting Type	Free Hanging (In-Line)	Free Hanging (In-Line)	Free Hanging (In-Line)	Free Hanging (In-Line)	Free Hanging (In-Line)	Free Hanging (In-Line)
Fastening Type	Bayonet Lock	Bayonet Lock	Bayonet Lock	Bayonet Lock	Bayonet Lock	Bayonet Lock
Shell Material	Aluminum Alloy	Aluminum Alloy	Aluminum Alloy	Aluminum Alloy	Aluminum Alloy	Aluminum Alloy
Shell Finish	Electroless Nickel	Electroless Nickel	Chromate over Cadmium	Anodized	Electroless Nickel	Chromate over Cadmium
Housing Color	Silver	Silver	Olive Drab	Not Specified	Silver	Olive Drab
Ingress Protection	Environment Resistant	Environment Resistant	Environment Resistant	Environment Resistant	Environment Resistant	Environment Resistant
Insert Material	Plastic	Plastic	Plastic	Plastic	Plastic	Plastic
Contact Shape	Circular	Circular	Circular	Circular	Circular	Circular
Operating Temperature	-55°C ~ 200°C	-55°C ~ 200°C	-55°C ~ 200°C	-55°C ~ 200°C	-55°C ~ 200°C	-55°C ~ 200°C
Shielding	Shielded	Shielded	Shielded	Unshielded	Unshielded	Unshielded
Coupling Feature	Coupling Nut	Coupling Nut	Coupling Nut	Coupling Nut	Coupling Nut	Coupling Nut
RoHS Status	Non-compliant	Non-compliant	Non-compliant	Non-compliant	Non-compliant	Non-compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

Direct Replacement (Shielded Configuration):

PV75L22-55SL is the primary substitute for MS3475L22-55B. Both parts feature electroless nickel shell finish, silver housing color, and shielded configuration. This part maintains identical electrical and mechanical specifications with active product status and current inventory availability (1,078 units in stock).

Alternative Shielded Configuration:

PV75W22-55SL provides shielded functionality with chromate over cadmium finish and olive drab housing color. This configuration is suitable for applications requiring corrosion resistance in specific environmental conditions while maintaining shielding characteristics.

Unshielded Alternatives:

PV76L22-55SL and PV76W22-55SL are unshielded equivalents. PV76L22-55SL features electroless nickel finish with silver housing, while PV76W22-55SL features chromate over cadmium finish with olive drab housing. These parts are applicable only when shielding is not required by system specifications.

Anodized Configuration:

PV76A22-55SL provides an unshielded option with anodized shell finish. This configuration is suitable for applications requiring anodized surface treatment without electromagnetic shielding requirements.

All substitute parts are manufactured by ITT Cannon, LLC with active product status, ensuring long-term availability and supply chain continuity compared to the discontinued MS3475L22-55B.

Frequently Asked Questions (FAQ)

Q: Can PV76L22-55SL or PV76W22-55SL be used as direct replacements for MS3475L22-55B?

A: PV76L22-55SL and PV76W22-55SL are mechanically and electrically compatible with MS3475L22-55B in all core parameters. However, these parts feature unshielded configuration compared to the shielded MS3475L22-55B. Selection depends on whether electromagnetic shielding is required by the application. If shielding is mandatory, use PV75L22-55SL or PV75W22-55SL instead.

Q: What is the difference between PV75L22-55SL and PV75W22-55SL?

A: Both parts are shielded 55-position connectors with identical mechanical specifications. The primary difference is shell finish and housing color. PV75L22-55SL features electroless nickel finish with silver housing, while PV75W22-55SL features chromate over cadmium finish with olive drab housing. Selection depends on corrosion resistance requirements and application environment specifications.

Q: Are all substitute parts compatible with existing mating connectors designed for MS3475L22-55B?

A: Yes. All substitute parts maintain identical shell size (22-55), contact size (20), bayonet lock fastening, and circular contact geometry. Physical and electrical mating compatibility is preserved across all listed substitutes.

Q: What is the difference between shielded and unshielded configurations?

A: Shielded configurations (PV75L22-55SL, PV75W22-55SL) provide electromagnetic interference protection through shielded housing design. Unshielded configurations (PV76L22-55SL, PV76W22-55SL, PV76A22-55SL) do not include this protection. Selection depends on whether EMI/RFI shielding is specified in system requirements.

Q: Can PV76A22-55SL be used in applications requiring shielding?

A: No. PV76A22-55SL is an unshielded connector with anodized finish. If electromagnetic shielding is required, select PV75L22-55SL or PV75W22-55SL.

Q: What is the significance of the shell finish differences?

A: Shell finish affects corrosion resistance and environmental durability. Electroless nickel finish (PV75L22-55SL, PV76L22-55SL) provides general corrosion protection. Chromate over cadmium finish (PV75W22-55SL, PV76W22-55SL) provides enhanced corrosion resistance in harsh environments. Anodized finish (PV76A22-55SL) provides surface hardness and corrosion resistance. Selection depends on application environment specifications.

Q: Are all substitute parts available in bulk packaging?

A: Yes. All listed substitute parts are supplied in bulk packaging with current inventory availability ranging from 676 to 1,078 units in stock.

Q: What is the operating temperature range for all substitute parts?

A: All substitute parts operate across the identical temperature range of -55°C to 200°C, matching the MS3475L22-55B specification.

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