Amphenol RF 901-9808-2 SMA Connector Plug Equivalent & Substitute Parts

Part Overview

The Amphenol RF 901-9808-2 is an SMA connector plug designed for 50 ohm coaxial applications. This male pin connector features solder termination for both center contact and shield, with free hanging (in-line) mounting suitable for RG-402 semi-rigid cable (.141" diameter). The part is currently active in production with 687 units in stock.

Substitute parts are identified to provide alternative sourcing options when the primary part is unavailable, when inventory constraints exist, or when design flexibility permits cross-manufacturer compatibility. All substitutes maintain the core electrical and mechanical specifications required for direct functional replacement in 50 ohm RF applications up to 18 GHz.

Key Parameters

Parameter	Specification
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-402 (.141" Semi Rigid)
Fastening Type	Threaded
Frequency - Max	18 GHz
Operating Temperature Range	-65°C ~ 165°C
Mating Cycles	500
Body Material	Stainless Steel
Body Finish	Gold
Center Contact Material	Beryllium Copper
Center Contact Plating	Gold
Dielectric Material	Polytetrafluoroethylene (PTFE)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the 901-9808-2 is determined by strict equivalence across the following critical 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-402 (.141" Semi Rigid)
Fastening Type: Threaded
Frequency - Max: 18 GHz minimum
Operating Temperature Range: -65°C ~ 165°C minimum
Mating Cycles: 500 minimum
Dielectric Material: PTFE

Acceptable Variations:

Center Contact Material: Beryllium Copper or Brass (both acceptable for 50 ohm RF applications)
Body Material: Stainless Steel or Brass (both acceptable for RF connector bodies)
Body Finish: Gold or Nickel (both acceptable finishes)
Housing Color: Gold or Silver (cosmetic variation)
Manufacturer: Amphenol RF, TE Connectivity AMP Connectors, or Cinch Connectivity Solutions

Parts that deviate from mandatory parameters in cable group compatibility, frequency rating, or termination method are classified as similar but not direct substitutes.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Product Status	Center Contact Material	Body Material	Body Finish	Frequency - Max	Operating Temperature	Voltage Rating	Inventory
901-9808-2	Amphenol RF	Active	Beryllium Copper	Stainless Steel	Gold	18 GHz	-65°C ~ 165°C	Not specified	687 Pcs
901-9201-1A	Amphenol RF	Active	Beryllium Copper	Stainless Steel	Gold	18 GHz	-65°C ~ 165°C	Not specified	994 Pcs
901-9868-RFX	Amphenol RF	Active	Brass	Brass	Gold	18 GHz	-65°C ~ 165°C	Not specified	1585 Pcs
1050524-1	TE Connectivity AMP Connectors	Active	Beryllium Copper	Stainless Steel	Gold	18 GHz	-65°C ~ 125°C	500 V	2124 Pcs
1056227-1	TE Connectivity AMP Connectors	Obsolete	Beryllium Copper	Stainless Steel	Gold	27 GHz	-65°C ~ 125°C	500 V	647 Pcs
1-1478903-0	TE Connectivity AMP Connectors	Active	Brass	Stainless Steel	Gold	18 GHz	-65°C ~ 165°C	500 V	1014 Pcs
142-0693-001	Cinch Connectivity Solutions Johnson	Active	Brass	Brass	Gold	26.5 GHz	-65°C ~ 165°C	335 V	3480 Pcs
142-0693-006	Cinch Connectivity Solutions	Active	Brass	Brass	Nickel	26.5 GHz	-65°C ~ 165°C	335 V	3935 Pcs
142-0694-011	Cinch Connectivity Solutions	Active	Not specified	Brass	Gold	18 GHz	-65°C ~ 165°C	335 V	1285 Pcs
142-0694-016	Cinch Connectivity Solutions	Active	Not specified	Brass	Nickel	18 GHz	-65°C ~ 165°C	335 V	41410 Pcs

Engineering Selection Recommendations

Direct Parametric Equivalents (Recommended Primary Substitutes):

The following parts satisfy all mandatory matching parameters and are suitable for direct substitution in applications requiring RG-402 cable compatibility with 18 GHz frequency operation:

901-9201-1A (Amphenol RF): Active status, identical electrical and mechanical specifications to 901-9808-2, higher inventory availability (994 Pcs).
901-9868-RFX (Amphenol RF): Active status, brass body material instead of stainless steel, maintains all electrical performance requirements, highest inventory availability (1585 Pcs).
1-1478903-0 (TE Connectivity AMP Connectors, Greenpar Series): Active status, brass center contact with stainless steel body, full temperature range support (-65°C ~ 165°C), 500 V voltage rating, 0.06 dB insertion loss specification, RoHS compliant.
1050524-1 (TE Connectivity AMP Connectors): Active status, beryllium copper center contact, stainless steel body, operates to 125°C maximum (5°C lower than primary part), 500 V voltage rating, high inventory (2124 Pcs).

Acceptable Substitutes with Cable Group Compatibility:

The following parts maintain RG-402 cable group compatibility and 18 GHz frequency operation but differ in secondary parameters:

142-0694-011 (Cinch Connectivity Solutions): Active status, RG-402 compatible, 18 GHz rated, full temperature range, contact termination method not specified, 100 mating cycles (lower than primary part specification of 500).
142-0694-016 (Cinch Connectivity Solutions): Active status, RG-402 compatible, 18 GHz rated, full temperature range, nickel body finish, 100 mating cycles, highest inventory availability (41410 Pcs).

Obsolete Parts (Not Recommended for New Designs):

1056227-1 (TE Connectivity AMP Connectors): Obsolete status, exceeds frequency requirements (27 GHz), operates to 125°C maximum, suitable only for legacy system maintenance.

Similar Parts with Cable Group Deviation (Not Recommended as Direct Substitutes):

142-0693-001 and 142-0693-006 (Cinch Connectivity Solutions): Designed for RG-405 cable (.086" semi-rigid), not RG-402 compatible, frequency rated to 26.5 GHz, not suitable for applications requiring RG-402 cable group specification.
1056232-1 (TE Connectivity AMP Connectors): Designed for RG-405 cable, not RG-402 compatible, operates to 105°C maximum, not suitable for full temperature range applications.

Compliance Status:

All recommended substitutes maintain ROHS3 compliance, REACH affected status, and MSL 1 (unlimited) moisture sensitivity rating consistent with the primary part.

Frequently Asked Questions (FAQ)

Q: Can 901-9201-1A be used as a direct replacement for 901-9808-2?

A: Yes. The 901-9201-1A is a parametric equivalent with identical electrical and mechanical specifications. Both are Amphenol RF SMA plugs rated for 50 ohms, 18 GHz, RG-402 cable compatibility, and full solder termination. The primary difference is higher inventory availability of the 901-9201-1A (994 Pcs vs. 687 Pcs).

Q: What is the difference between 901-9868-RFX and 901-9808-2?

A: The 901-9868-RFX uses brass for both body material and center contact, while 901-9808-2 uses stainless steel body with beryllium copper center contact. Both maintain 50 ohm impedance, 18 GHz frequency operation, and full temperature range (-65°C ~ 165°C). The brass construction in 901-9868-RFX does not affect RF performance for this application class. The 901-9868-RFX includes 3 pcs (connector, contact, insulator) versus the primary part supplied as single connector.

Q: Are TE Connectivity parts 1050524-1 and 1-1478903-0 suitable substitutes?

A: Both are suitable substitutes with the following considerations. The 1050524-1 operates to 125°C maximum, which is 40°C lower than the primary part specification of 165°C. The 1-1478903-0 maintains the full -65°C ~ 165°C temperature range and includes insertion loss specification (0.06 dB). Both provide 500 V voltage rating and 500 mating cycles. Selection depends on application temperature requirements.

Q: Why are 142-0693-001 and 142-0693-006 not recommended as direct substitutes?

A: These Cinch parts are designed for RG-405 cable (.086" semi-rigid), not RG-402 cable (.141" semi-rigid). Cable group compatibility is a mandatory matching parameter. While both maintain 50 ohm impedance and SMA connector style, the different cable group specification makes them unsuitable for applications requiring RG-402 compatibility.

Q: What is the significance of the 100 mating cycles specification in 142-0694-011 and 142-0694-016?

A: The primary part 901-9808-2 specifies 500 mating cycles, while these Cinch alternatives specify 100 mating cycles. This represents a 5-fold reduction in mechanical durability. These parts are acceptable only for applications with low connector mating frequency or where the reduced cycle rating is acceptable for the intended use case.

Q: Can 1056227-1 be used in new designs?

A: No. The 1056227-1 is classified as obsolete and should not be selected for new designs. While it exceeds the frequency requirement (27 GHz vs. 18 GHz), the obsolete status indicates discontinued production and potential supply chain risk. Active alternatives such as 901-9201-1A, 901-9868-RFX, or 1-1478903-0 are recommended for new designs.

Q: What packaging differences exist among the substitute parts?

A: The primary part 901-9808-2 is supplied in bulk packaging. Most substitutes (901-9201-1A, 901-9868-RFX, 1050524-1, 142-0693-001, 142-0693-006, 142-0694-011, 142-0694-016, 1-1478903-0) are also supplied in bulk. The TE Connectivity part 1056227-1 and 1056232-1 do not specify packaging type. Verify packaging requirements with supplier for applications requiring specific quantity configurations.

Q: Are there RoHS compliance differences among substitutes?

A: The primary part 901-9808-2 is ROHS3 compliant. Most substitutes maintain ROHS3 compliance. The obsolete part 1056227-1 is listed as RoHS compliant (not ROHS3). For applications requiring ROHS3 certification, verify compliance status with the selected substitute part.

Q: Which substitute offers the highest inventory availability?

A: The Cinch part 142-0694-016 offers the highest inventory with 41410 Pcs in stock. This part is RG-402 compatible, 18 GHz rated, and maintains full temperature range operation. The primary consideration is the 100 mating cycles specification versus the primary part's 500 cycles, and the nickel body finish versus gold.

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