Amphenol RF 901-9511-3SF SMA Connector Plug Equivalent & Substitute Parts

Part Overview

The Amphenol RF 901-9511-3SF is an SMA connector plug designed for 50-ohm coaxial cable applications. This male pin connector features solder termination for the center contact and crimp termination for the shield, operating across a frequency range up to 12.4 GHz. The connector is rated for free-hanging (in-line) mounting with a threaded fastening mechanism and is suitable for use with RG-174, RG-188, RG-188A, RG-316, LMR-100, and M17/119-RG174 cable groups.

The 901-9511-3SF maintains active product status with full ROHS3 compliance and REACH compliance. Equivalent and substitute parts are available from Amphenol RF and other manufacturers, offering alternative configurations and material compositions while maintaining core electrical and mechanical compatibility.

Key Parameters

Parameter	Specification
Connector Style	SMA
Connector Type	Plug, Male Pin
Impedance	50 Ohms
Contact Termination	Solder
Shield Termination	Crimp
Mounting Type	Free Hanging (In-Line)
Fastening Type	Threaded
Frequency - Max	12.4 GHz
Operating Temperature Range	-65°C to 165°C
Voltage Rating	375 V
Mating Cycles	500
Number of Ports	1
Dielectric Material	Polytetrafluoroethylene (PTFE)
Center Contact Plating	Gold
RoHS Status	ROHS3 Compliant
REACH Status	REACH Affected

Substitute Part Grouping Explanation

Substitution eligibility for the 901-9511-3SF is determined by strict adherence to the following core parameters:

Critical Matching Parameters:

Connector Style: SMA
Connector Type: Plug, Male Pin
Impedance: 50 Ohms
Mounting Type: Free Hanging (In-Line)
Fastening Type: Threaded
Frequency - Max: 12.4 GHz
Dielectric Material: Polytetrafluoroethylene (PTFE)
Operating Temperature Range: -65°C to 165°C
Number of Ports: 1

Allowable Variations:

Center Contact Material: Beryllium Copper or Brass
Body Material: Stainless Steel or Brass
Contact Termination: Solder or Crimp or Solder (dual capability)
Shield Termination: Crimp
Center Contact Plating: Gold
Voltage Rating: 375 V or 250 V
Cable Group: RG-174, RG-188, RG-188A, RG-316, LMR-100, M17/119-RG174, or RG-161 subsets
Manufacturer: Amphenol RF, TE Connectivity AMP Connectors, or Cinch Connectivity Solutions
Product Status: Active or Obsolete (with inventory availability)
RoHS/REACH Compliance: ROHS3 Compliant and REACH Affected

Parameter Comparison

Parameter	901-9511-3SF	901-9601-3SF	901-9877-RFX	1051655-1	142-0403-016
Manufacturer	Amphenol RF	Amphenol RF	Amphenol RF	TE Connectivity AMP	Cinch Connectivity
Connector Style	SMA	SMA	SMA	SMA	SMA
Connector Type	Plug, Male Pin	Plug, Male Pin	Plug, Male Pin	Plug, Male Pin	Plug, Male Pin
Contact Termination	Solder	Solder	Solder	Solder	Crimp or Solder
Shield Termination	Crimp	Crimp	Crimp	Crimp	Crimp
Impedance	50 Ohms	50 Ohms	50 Ohms	50 Ohms	50 Ohms
Mounting Type	Free Hanging (In-Line)	Free Hanging (In-Line)	Free Hanging (In-Line)	Free Hanging (In-Line)	Free Hanging (In-Line)
Fastening Type	Threaded	Threaded	Threaded	Threaded	Threaded
Frequency - Max	12.4 GHz	12.4 GHz	12.4 GHz	12.4 GHz	12.4 GHz
Operating Temperature	-65°C to 165°C	-65°C to 165°C	-65°C to 165°C	-65°C to 165°C	-65°C to 165°C
Voltage Rating	375 V	375 V	375 V	250 V	250 V
Mating Cycles	500	500	500	500	500
Number of Ports	1	1	1	1	1
Dielectric Material	PTFE	PTFE	PTFE	PTFE	PTFE
Center Contact Material	Beryllium Copper	Beryllium Copper	Brass	Beryllium Copper	Brass
Body Material	Stainless Steel	Stainless Steel	Brass	Stainless Steel	Brass
Center Contact Plating	Gold	Gold	Gold	Gold	Gold
Product Status	Active	Active	Active	Obsolete	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS Compliant	ROHS3 Compliant
REACH Status	REACH Affected	REACH Affected	REACH Affected	REACH Affected	REACH Affected

Engineering Selection Recommendations

Amphenol RF 901-9601-3SF

The 901-9601-3SF is a parametric equivalent to the 901-9511-3SF with identical electrical specifications and operating characteristics. Both connectors feature beryllium copper center contacts, stainless steel bodies, and 375 V voltage ratings. The primary difference is the inclusion package: the 901-9601-3SF includes six components (connector, contact, ferrule, heat shrink, insulator, and nut) compared to four components in the 901-9511-3SF. Both maintain active product status and ROHS3 compliance. Selection between these two parts depends on assembly requirements and whether the additional insulator and nut components are necessary for the application.

Amphenol RF 901-9877-RFX

The 901-9877-RFX is a parametric equivalent with identical electrical and mechanical specifications to the 901-9511-3SF. The material composition differs: the 901-9877-RFX uses brass for both the center contact and body with nickel finish, whereas the 901-9511-3SF uses beryllium copper and stainless steel. Both connectors support the same frequency range, impedance, and operating temperature specifications. The 901-9877-RFX maintains active product status and ROHS3 compliance. Selection between these parts depends on material compatibility requirements and environmental exposure considerations.

TE Connectivity AMP Connectors 1051655-1

The 1051655-1 is a direct substitute with matching electrical specifications and beryllium copper center contact material. This connector carries obsolete product status but maintains substantial inventory availability. The voltage rating is 250 V compared to 375 V in the 901-9511-3SF. The cable group compatibility is limited to RG-188 only, whereas the 901-9511-3SF supports a broader cable group range. This part is suitable for applications where the lower voltage rating and restricted cable compatibility are acceptable and where inventory availability of obsolete stock is advantageous.

Cinch Connectivity Solutions 142-0403-016

The 142-0403-016 is a direct substitute offering dual contact termination capability (crimp or solder), providing flexibility beyond the solder-only termination of the 901-9511-3SF. The connector uses brass materials for both center contact and body with nickel finish. The voltage rating is 250 V, and cable group compatibility includes RG-161, RG-174, RG-188, and RG-316. This part maintains active product status and ROHS3 compliance. Selection of this part is appropriate when dual termination capability is required or when the restricted voltage rating and cable group compatibility align with application requirements.

Frequently Asked Questions (FAQ)

Q: Can the 901-9601-3SF be used as a direct replacement for the 901-9511-3SF?

A: Yes. The 901-9601-3SF is a parametric equivalent with identical electrical specifications, impedance, frequency range, and operating temperature. The primary difference is the inclusion package. Both parts are manufactured by Amphenol RF and maintain active product status with ROHS3 compliance.

Q: What is the difference between the 901-9511-3SF and 901-9877-RFX?

A: Both connectors are parametric equivalents with identical electrical and mechanical specifications. The 901-9877-RFX uses brass materials with nickel finish for the body and center contact, while the 901-9511-3SF uses stainless steel body and beryllium copper center contact. Material selection depends on environmental exposure and compatibility requirements.

Q: Why is the 1051655-1 listed as obsolete?

A: The 1051655-1 carries obsolete product status from TE Connectivity AMP Connectors. However, substantial inventory remains available. This part is suitable for applications where the lower 250 V voltage rating and RG-188 cable group limitation are acceptable.

Q: Can the 142-0403-016 be used in place of the 901-9511-3SF?

A: The 142-0403-016 is a direct substitute with matching SMA connector style, 50-ohm impedance, and 12.4 GHz frequency rating. The 142-0403-016 offers dual contact termination (crimp or solder) compared to solder-only termination in the 901-9511-3SF. The voltage rating is 250 V, and cable group compatibility is limited to RG-161, RG-174, RG-188, and RG-316. Substitution is appropriate when these specifications align with application requirements.

Q: What cable groups are compatible with each substitute part?

A: The 901-9511-3SF and 901-9601-3SF support RG-174, RG-188, RG-188A, RG-316, LMR-100, and M17/119-RG174. The 901-9877-RFX supports the same cable groups. The 1051655-1 is limited to RG-188. The 142-0403-016 supports RG-161, RG-174, RG-188, and RG-316. Cable group compatibility must be verified for the specific application.

Q: Are all substitute parts ROHS3 compliant?

A: The 901-9511-3SF, 901-9601-3SF, 901-9877-RFX, and 142-0403-016 are all ROHS3 compliant. The 1051655-1 is RoHS compliant but not specifically ROHS3 certified. All parts are REACH affected. Compliance requirements for the specific application must be verified.

Q: What is the voltage rating difference between the main part and substitutes?

A: The 901-9511-3SF, 901-9601-3SF, and 901-9877-RFX are rated for 375 V. The 1051655-1 and 142-0403-016 are rated for 250 V. Application voltage requirements must be verified to ensure the selected part meets specifications.

Q: How many components are included with each connector?

A: The 901-9511-3SF includes 4 components (connector, contact, ferrule, heat shrink). The 901-9601-3SF includes 6 components (connector, contact, ferrule, heat shrink, insulator, nut). The 901-9877-RFX includes 4 components (connector, contact, ferrule, heat shrink). The 1051655-1 includes 4 components (connector, contact, heat shrink, sleeve). The 142-0403-016 includes 3 components (connector, contact, sleeve). Assembly requirements determine which inclusion package is appropriate.

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