R124052003W SMA Straight Plug Solder Type Coaxial Connector

Part Overview

The R124052003W is an SMA connector plug manufactured by Radiall USA, Inc., designed for RF coaxial applications requiring 50-ohm impedance. This male pin connector features solder termination for both center contact and shield, with free-hanging (in-line) mounting suitable for RG-405 semi-rigid cable (.085" diameter). The connector operates across a frequency range up to 18 GHz with an operating temperature range of -65°C to 105°C.

The R124052003W maintains Active product status and is ROHS3 compliant. Equivalent and substitute parts are identified based on matching electrical specifications, mechanical compatibility, and termination methods. Alternative models are necessary when specific packaging requirements, extended temperature ratings, or enhanced durability specifications are required for particular applications.

Key Parameters

Parameter	Value
Connector Style	SMA
Connector Type	Plug, Male Pin
Impedance	50 Ohms
Contact Termination	Solder
Shield Termination	Solder
Mounting Type	Free Hanging (In-Line)
Cable Group	RG-405 (.085" Semi Rigid)
Fastening Type	Threaded
Frequency - Max	18 GHz
Operating Temperature	-65°C ~ 105°C
Voltage Rating	335 V
Body Material	Stainless Steel
Body Finish	Gold
Dielectric Material	Polytetrafluoroethylene (PTFE)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the R124052003W is determined by strict adherence to the following core parameters:

Mandatory Matching Parameters:

Connector Style: SMA
Connector Type: Plug, Male Pin
Impedance: 50 Ohms
Contact Termination: Solder
Shield Termination: Solder
Mounting Type: Free Hanging (In-Line)
Cable Group: RG-405 (.085" Semi Rigid)
Fastening Type: Threaded
Frequency - Max: 18 GHz
Body Material: Stainless Steel
Body Finish: Gold
Dielectric Material: PTFE

Variable Parameters Allowing Substitution:

Center Contact Material (Brass or Beryllium Copper)
Packaging (Box or Bulk)
Mating Cycles (100 or 500)
Operating Temperature Range (-65°C ~ 105°C or -65°C ~ 165°C)
Voltage Rating (335 V or 350 V)
Moisture Sensitivity Level (Not Applicable or 1 - Unlimited)

All identified substitute parts maintain electrical and mechanical compatibility with the R124052003W while offering variations in durability, packaging, and environmental specifications.

Parameter Comparison

Parameter	R124052003W	9401-1083-010	R125052000	R125052002W	1-1478904-0	1050547-1	1050548-1	1050769-1
Manufacturer	Radiall USA, Inc.	Radiall USA, Inc.	Radiall USA, Inc.	Radiall USA, Inc.	TE Connectivity AMP	TE Connectivity AMP	TE Connectivity AMP	TE Connectivity AMP
Connector Style	SMA	SMA	SMA	SMA	SMA	SMA	SMA	SMA
Connector Type	Plug, Male Pin	Plug, Male Pin	Plug, Male Pin	Plug, Male Pin	Plug, Male Pin	Plug, Male Pin	Plug, Male Pin	Plug, Male Pin
Impedance	50 Ohms	50 Ohms	50 Ohms	50 Ohms	50 Ohms	50 Ohms	50 Ohms	50 Ohms
Contact Termination	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder
Shield Termination	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder
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)	Free Hanging (In-Line)	Free Hanging (In-Line)
Cable Group	RG-405 (.085")	RG-405 (.085")	RG-405 (.085")	RG-405 (.085")	RG-405 (.085")	RG-405 (.085")	RG-405 (.085")	RG-405 (.085")
Fastening Type	Threaded	Threaded	Threaded	Threaded	Threaded	Threaded	Threaded	Threaded
Frequency - Max	18 GHz	18 GHz	18 GHz	18 GHz	18 GHz	18 GHz	18 GHz	18 GHz
Operating Temperature	-65°C ~ 105°C	-65°C ~ 105°C	-65°C ~ 105°C	-65°C ~ 165°C	-65°C ~ 165°C	-65°C ~ 105°C	-65°C ~ 105°C	-65°C ~ 105°C
Voltage Rating	335 V	350 V	335 V	335 V	335 V	335 V	335 V	335 V
Mating Cycles	100	500	500	500	500	500	500	500
Center Contact Material	Brass	Beryllium Copper	Brass	Brass	Brass	Beryllium Copper	Beryllium Copper	Beryllium Copper
Body Material	Stainless Steel	Stainless Steel	Stainless Steel	Stainless Steel	Stainless Steel	Stainless Steel	Stainless Steel	Stainless Steel
Body Finish	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Gold
Dielectric Material	PTFE	PTFE	PTFE	PTFE	PTFE	PTFE	PTFE	PTFE
Packaging	Box	Bulk	Bulk	Box	Bulk	Bulk	Bulk	Not Specified
Product Status	Active	Active	Active	Active	Active	Active	Active	Obsolete
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS Compliant

Engineering Selection Recommendations

Primary Substitutes (Active Status, ROHS3 Compliant):

The following parts are recommended as direct substitutes for the R124052003W in applications requiring equivalent electrical and mechanical performance:

R125052002W - Radiall USA, Inc. (Box packaging): Identical to R124052003W with extended operating temperature range (-65°C ~ 165°C). Suitable for applications requiring higher temperature operation while maintaining all other specifications.

R125052000 - Radiall USA, Inc. (Bulk packaging): Functionally equivalent with enhanced mating cycle rating (500 cycles versus 100). Appropriate for high-cycle connection applications. Available in bulk packaging.

9401-1083-010 - Radiall USA, Inc. (Bulk packaging): Equivalent performance with beryllium copper center contact material and 350 V voltage rating. Offers 500 mating cycles. Available in bulk packaging.

1-1478904-0 - TE Connectivity AMP Connectors (Bulk packaging, Greenpar series): Functionally equivalent with extended operating temperature range (-65°C ~ 165°C) and 500 mating cycles. Includes 3-piece component set (connector, contact, insulator). ROHS3 compliant with REACH affected status.

1050547-1 - TE Connectivity AMP Connectors (Bulk packaging): Equivalent with beryllium copper center contact and 500 mating cycles. Includes 3-piece component set. ROHS3 compliant with REACH affected status.

1050548-1 - TE Connectivity AMP Connectors (Bulk packaging): Equivalent with beryllium copper center contact and 500 mating cycles. Includes 3-piece component set. ROHS3 compliant with REACH affected status.

Secondary Substitute (Obsolete Status):

1050769-1 - TE Connectivity AMP Connectors: Obsolete product status. Functionally equivalent but no longer in active production. Use only when existing inventory must be maintained or legacy system compatibility is required. Includes 2-piece component set (connector, contact).

Frequently Asked Questions (FAQ)

Q: Can R124052003W be replaced with 9401-1083-010?

A: Yes. Both connectors maintain identical electrical specifications (50 Ohms, 18 GHz maximum frequency, solder termination) and mechanical compatibility (SMA male plug, RG-405 cable group, threaded fastening). The primary difference is center contact material (brass versus beryllium copper) and packaging format (box versus bulk). The 9401-1083-010 offers enhanced mating cycle rating (500 versus 100) and higher voltage rating (350 V versus 335 V).

Q: What is the difference between R125052000 and R125052002W?

A: Both are Radiall USA, Inc. products with identical electrical and mechanical specifications. R125052002W features extended operating temperature range (-65°C ~ 165°C versus -65°C ~ 105°C) and box packaging. R125052000 is available in bulk packaging. Both support 500 mating cycles.

Q: Are TE Connectivity parts (1050547-1, 1050548-1, 1-1478904-0) compatible with Radiall R124052003W?

A: Yes. All TE Connectivity AMP connector parts listed maintain the same SMA connector style, 50-ohm impedance, solder termination, and RG-405 cable compatibility. Electrical and mechanical performance is equivalent. TE parts include component kits (connector, contact, insulator) and support 500 mating cycles. Operating temperature ranges vary: 1050547-1 and 1050548-1 operate -65°C ~ 105°C; 1-1478904-0 operates -65°C ~ 165°C.

Q: Should I use 1050769-1 as a substitute?

A: 1050769-1 is obsolete and not recommended for new designs. Use only when maintaining existing inventory or supporting legacy systems already deployed with this part number. Active alternatives with equivalent performance are available.

Q: What packaging options are available?

A: Box packaging is available with R124052003W and R125052002W. Bulk packaging is available with 9401-1083-010, R125052000, 1-1478904-0, 1050547-1, and 1050548-1. Packaging selection depends on procurement and assembly requirements.

Q: Which substitute offers the highest mating cycle rating?

A: All active substitutes except R124052003W support 500 mating cycles. R124052003W is rated for 100 mating cycles. For high-cycle applications, select from R125052000, R125052002W, 9401-1083-010, 1-1478904-0, 1050547-1, or 1050548-1.

Q: Are all substitutes ROHS3 compliant?

A: Yes. All active substitute parts listed are ROHS3 compliant. The obsolete part 1050769-1 carries RoHS Compliant status (not ROHS3). For new designs, select from active ROHS3 compliant alternatives.

Q: What is the difference between brass and beryllium copper center contacts?

A: Both materials are used in equivalent SMA connectors. Brass center contacts are specified in R124052003W, R125052000, R125052002W, and 1-1478904-0. Beryllium copper center contacts are specified in 9401-1083-010, 1050547-1, 1050548-1, and 1050769-1. Material selection does not affect electrical performance within the specified frequency range and impedance rating.

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