Amphenol RF 112586-13 BNC Connector Equivalent & Substitute Parts

Part Overview

The Amphenol RF 112586-13 is an active BNC connector jack (female socket) rated for 75 ohms impedance, designed for through-hole PCB mounting with solder termination. This coaxial connector operates across a frequency range up to 4 GHz and is suitable for RF and signal transmission applications requiring 75-ohm impedance matching. The part is ROHS3 compliant and REACH affected, with unlimited moisture sensitivity level (MSL 1).

Substitute parts are identified to address inventory availability, alternative sourcing requirements, or specific material and finish specifications while maintaining functional compatibility within defined electrical and mechanical parameters.

Key Parameters

Parameter	Value
Manufacturer Part Number	112586-13
Manufacturer	Amphenol RF
Connector Style	BNC
Connector Type	Jack, Female Socket
Impedance	75 Ohms
Mounting Type	Through Hole
Contact Termination	Solder
Shield Termination	Solder
Fastening Type	Bayonet Lock
Frequency - Max	4 GHz
Number of Ports	1
Voltage Rating	500 V
Mating Cycles	500
Operating Temperature	-65°C ~ 165°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the Amphenol RF 112586-13 are categorized based on impedance matching and electrical compatibility. The primary substitution criterion is impedance specification, as this parameter determines signal integrity and system performance in RF applications.

75-Ohm Impedance Substitutes (Direct Functional Equivalents): Parts maintaining 75-ohm impedance provide direct functional substitution without system reconfiguration. These include Amphenol RF 031-5329-72RFX and Rosenberger 71K101-400A5.

50-Ohm Impedance Substitutes (System-Dependent Application): Parts rated for 50-ohm impedance represent alternative sourcing options applicable only in systems designed for 50-ohm impedance. These include multiple Amphenol RF and TE Connectivity AMP Connectors variants.

Key Parameters Determining Substitution Eligibility:

Connector Style: BNC (all substitutes)
Connector Type: Jack, Female Socket (all substitutes)
Mounting Type: Through Hole (all substitutes)
Contact Termination: Solder (all substitutes)
Shield Termination: Solder (all substitutes)
Fastening Type: Bayonet Lock (all substitutes)
Frequency - Max: 4 GHz (all substitutes)
Number of Ports: 1 (all substitutes)
Voltage Rating: 500 V (all substitutes, except 71K101-400A5 at 400 V)
Mating Cycles: 500 (all substitutes)

Parameter Comparison

Part Number	Manufacturer	Impedance	Operating Temperature	Center Contact Material	Body Material	Body Finish	Center Contact Plating	Dielectric Material	Voltage Rating	RoHS Status
112586-13	Amphenol RF	75 Ohms	-65°C ~ 165°C	Beryllium Copper	Brass	Nickel	Gold	PTFE	500 V	ROHS3
031-5329-72RFX	Amphenol RF	75 Ohms	Not Specified	Phosphor Bronze	Brass	Nickel	Gold	PBT, Polyester	500 V	ROHS3
71K101-400A5	Rosenberger	75 Ohms	-65°C ~ 165°C	Beryllium Copper	Brass	Nickel	Gold	PTFE	400 V	RoHS
031-5329-51RFX	Amphenol RF	50 Ohms	-20°C ~ 165°C	Phosphor Bronze	Brass	Nickel	Silver	PBT	500 V	ROHS3
031-5329-52RFX	Amphenol RF	50 Ohms	Not Specified	Phosphor Bronze	Brass	Nickel	Gold	PBT, Polyester	500 V	ROHS3
1-1337445-0	TE Connectivity AMP	50 Ohms	-65°C ~ 165°C	Brass	Brass	Silver	Silver	PTFE	500 V	ROHS3
227699-1	TE Connectivity AMP	50 Ohms	-55°C ~ 85°C	Phosphor Bronze	Zinc	Nickel	Silver	PBT, Polyester	500 V	RoHS
5221123-2	TE Connectivity AMP	50 Ohms	-55°C ~ 85°C	Phosphor Bronze	Zinc	Tin	Gold	Polyester	500 V	ROHS3
5222420-1	TE Connectivity AMP	50 Ohms	-55°C ~ 85°C	Phosphor Bronze	Brass	Nickel	Silver	Polyester	500 V	RoHS
5413969-2	TE Connectivity AMP	50 Ohms	-55°C ~ 85°C	Beryllium Copper	Zinc	Tin	Gold	PTFE	500 V	ROHS3
6274315-1	TE Connectivity AMP	50 Ohms	-55°C ~ 85°C	Phosphor Bronze	Zinc	Tin	Silver	PPO	500 V	ROHS3

Engineering Selection Recommendations

For 75-Ohm System Applications:

The Amphenol RF 031-5329-72RFX provides direct impedance matching to the primary part with ROHS3 compliance. Operating temperature specification is not provided for this part; applications requiring confirmed temperature performance across the full -65°C to 165°C range should reference the Rosenberger 71K101-400A5, which maintains identical impedance, material composition, and temperature rating. The Rosenberger part carries a 400 V voltage rating compared to the 500 V specification of the primary part; this reduction in voltage rating must be evaluated against system requirements.

For 50-Ohm System Applications:

Multiple 50-ohm substitutes are available from both Amphenol RF and TE Connectivity AMP Connectors. Selection among these options depends on specific material, finish, and temperature requirements:

Amphenol RF 031-5329-51RFX and 031-5329-52RFX maintain ROHS3 compliance and 500 V voltage rating. The 031-5329-51RFX operates across -20°C to 165°C with silver center contact plating, while 031-5329-52RFX specifications do not include operating temperature data.
TE Connectivity AMP 1-1337445-0 (Greenpar series) provides ROHS3 compliance, 500 V voltage rating, and -65°C to 165°C operating temperature matching the primary part. This part uses PTFE dielectric material consistent with the primary specification.
TE Connectivity AMP 5413969-2 offers ROHS3 compliance, 500 V voltage rating, beryllium copper center contact material, and PTFE dielectric. Operating temperature is limited to -55°C to 85°C.
TE Connectivity AMP 227699-1, 5221123-2, 5222420-1, and 6274315-1 provide 50-ohm alternatives with reduced operating temperature ranges (-55°C to 85°C) and varying material specifications. These parts carry RoHS or ROHS3 compliance.

All substitute parts maintain BNC connector style, female socket configuration, through-hole mounting, solder termination, bayonet lock fastening, 4 GHz maximum frequency, and 500 mating cycles (except where voltage rating differs).

Frequently Asked Questions (FAQ)

Q: Can the Amphenol RF 112586-13 (75 ohms) be directly replaced with a 50-ohm BNC connector?

A: Direct replacement is not recommended without system redesign. The 75-ohm impedance specification of the primary part is matched to system components designed for 75-ohm characteristic impedance. Substituting a 50-ohm connector introduces impedance mismatch, resulting in signal reflections and degraded RF performance. Use 50-ohm substitutes only in systems specified for 50-ohm impedance.

Q: What is the difference between the Amphenol RF 031-5329-72RFX and the primary part 112586-13?

A: Both parts maintain 75-ohm impedance, BNC female socket configuration, through-hole solder mounting, and 500 V voltage rating. The primary differences are center contact material (beryllium copper versus phosphor bronze), dielectric material (PTFE versus PBT/Polyester), and body finish (both nickel). The 031-5329-72RFX does not specify operating temperature range. Both are ROHS3 compliant.

Q: Why does the Rosenberger 71K101-400A5 have a lower voltage rating (400 V) than the primary part (500 V)?

A: The voltage rating difference reflects design specifications for each manufacturer's connector architecture. The Rosenberger part maintains identical impedance (75 ohms), material composition (beryllium copper center contact, brass body with nickel finish, PTFE dielectric), and operating temperature range (-65°C to 165°C) as the primary part. Applications operating below 400 V can use this substitute; systems requiring 500 V operation must use the primary part or equivalent 500 V rated alternatives.

Q: Are all substitute parts ROHS3 compliant?

A: Most substitute parts carry ROHS3 compliance. The TE Connectivity AMP parts 227699-1, 5222420-1, and Rosenberger 71K101-400A5 carry RoHS compliance (not ROHS3). Applications requiring ROHS3 certification must select from parts explicitly marked ROHS3 compliant: Amphenol RF 031-5329-51RFX, 031-5329-52RFX, 031-5329-72RFX, TE Connectivity AMP 1-1337445-0, 5221123-2, 5413969-2, and 6274315-1.

Q: What is the significance of center contact material differences (beryllium copper versus phosphor bronze)?

A: Center contact material affects electrical conductivity, mechanical durability, and contact resistance characteristics. Beryllium copper provides superior electrical and mechanical properties compared to phosphor bronze. The primary part uses beryllium copper; substitutes using phosphor bronze (Amphenol RF 031-5329-51RFX, 031-5329-52RFX, 031-5329-72RFX, and most TE Connectivity AMP parts) represent alternative material specifications. TE Connectivity AMP 1-1337445-0 and 5413969-2 maintain beryllium copper center contact material.

Q: Does dielectric material affect connector performance?

A: Dielectric material influences frequency response, insertion loss, and temperature stability. The primary part uses PTFE (polytetrafluoroethylene), which provides excellent high-frequency performance and temperature stability. Substitutes using PBT (polybutylene terephthalate), polyester, or PPO (polyphenylene oxide) represent alternative dielectric specifications. For applications requiring confirmed PTFE performance characteristics, select substitutes explicitly specifying PTFE: Amphenol RF 031-5329-51RFX (partial), TE Connectivity AMP 1-1337445-0, and 5413969-2.

Q: Can I use a 50-ohm connector in a 75-ohm video or broadcast application?

A: No. Video and broadcast applications are standardized on 75-ohm impedance. Using 50-ohm connectors introduces impedance discontinuities causing signal reflections, ghosting, and picture degradation. Maintain 75-ohm impedance throughout the signal chain. Use only 75-ohm rated substitutes: Amphenol RF 031-5329-72RFX or Rosenberger 71K101-400A5.

Q: What packaging options are available for substitute parts?

A: The primary part 112586-13 is supplied in unspecified packaging. Substitute parts are supplied in bulk packaging. Confirm packaging requirements with procurement specifications before component selection.

Q: Are insertion loss specifications available for all parts?

A: The primary part 112586-13 specifies 0.2 dB insertion loss. Amphenol RF 031-5329-51RFX and 031-5329-52RFX also specify 0.2 dB insertion loss. TE Connectivity AMP and Rosenberger substitutes do not provide insertion loss specifications in available data. For applications requiring confirmed insertion loss performance, reference parts with specified values.

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