2.92mm End Launch Jack Coaxial Connector 145-0701-821

Part Overview

The Cinch Connectivity Solutions Johnson 145-0701-821 is a 2.92mm end launch jack connector designed for RF coaxial applications requiring 50 ohm impedance. This female socket connector features board edge mounting with solder termination for both center contact and shield. The part is currently active in production with 1036 units in stock.

Alternative part numbers are necessary when primary inventory is depleted, when specific packaging requirements differ, or when equivalent performance specifications from alternative manufacturers meet application requirements.

Key Parameters

Parameter	Value
Connector Style	2.92mm
Connector Type	Jack, Female Socket
Impedance	50 Ohms
Mounting Type	Board Edge, End Launch
Contact Termination	Solder
Shield Termination	Solder
Frequency - Max	40 GHz
Voltage Rating	250 V
Operating Temperature	-40°C ~ 85°C
Mating Cycles	500
Center Contact Material	Beryllium Copper
Body Material	Brass
Body Finish	Gold
Center Contact Plating	Gold
Dielectric Material	Polytetrafluoroethylene (PTFE)
Fastening Type	Threaded
Number of Ports	1

Substitute Part Grouping Explanation

Substitution eligibility for the 145-0701-821 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

Connector Style: 2.92mm
Connector Type: Jack, Female Socket
Impedance: 50 Ohms
Mounting Type: Board Edge, End Launch
Contact Termination: Solder
Shield Termination: Solder
Frequency - Max: 40 GHz
Voltage Rating: 250 V
Fastening Type: Threaded
Number of Ports: 1

All identified substitute parts meet these mandatory parameters. Variations in packaging type, body material composition, dielectric material, and operating temperature ranges do not affect functional equivalence within the specified electrical and mechanical constraints.

Parameter Comparison

Parameter	145-0701-821	145-0701-251	145-0701-841	145-0701-851	145-0701-861	1521-60051
Manufacturer	Cinch Connectivity Solutions Johnson	Cinch Connectivity Solutions Johnson	Cinch Connectivity Solutions	Cinch Connectivity Solutions	Cinch Connectivity Solutions	Amphenol SV Microwave
Connector Style	2.92mm	2.92mm	2.92mm	2.92mm	2.92mm	2.92mm
Connector Type	Jack, Female Socket	Jack, Female Socket	Jack, Female Socket	Jack, Female Socket	Jack, Female Socket	Jack, Female Socket
Impedance	50 Ohms	50 Ohms	50 Ohms	50 Ohms	50 Ohms	50 Ohms
Mounting Type	Board Edge, End Launch	Board Edge, End Launch	Board Edge, End Launch	Board Edge, End Launch	Board Edge, End Launch	Board Edge, End Launch
Contact Termination	Solder	Solder	Solder	Solder	Solder	Solder
Shield Termination	Solder	Solder	Solder	Solder	Solder	Solder
Frequency - Max	40 GHz	40 GHz	40 GHz	40 GHz	40 GHz	40 GHz
Voltage Rating	250 V	250 V	250 V	250 V	250 V	250 V
Operating Temperature	-40°C ~ 85°C	-45°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	Not Specified
Mating Cycles	500	500	500	500	500	Not Specified
Center Contact Material	Beryllium Copper	Beryllium Copper	Beryllium Copper	Beryllium Copper	Beryllium Copper	Beryllium Copper
Body Material	Brass	Brass	Brass	Brass	Brass	Stainless Steel
Body Finish	Gold	Gold	Gold	Gold	Gold	Gold
Center Contact Plating	Gold	Gold	Gold	Gold	Gold	Gold
Dielectric Material	Polytetrafluoroethylene (PTFE)	Polytetrafluoroethylene (PTFE)	Polytetrafluoroethylene (PTFE)	Polytetrafluoroethylene (PTFE)	Polytetrafluoroethylene (PTFE)	Polyetherimide (PEI)
Fastening Type	Threaded	Threaded	Threaded	Threaded	Threaded	Threaded
Number of Ports	1	1	1	1	1	1
Packaging	Bulk	Bag	Bulk	Bulk	Bulk	Bag
Inventory (Pcs)	1036	1119	1565	1587	738	2100
RoHS Status	ROHS3 Compliant	Not Specified	ROHS3 Compliant	ROHS3 Compliant	RoHS Compliant	ROHS3 Compliant

Engineering Selection Recommendations

All substitute parts listed are functionally equivalent to the 145-0701-821 based on electrical and mechanical parameter matching. Selection among alternatives should be based on the following criteria:

Cinch Connectivity Solutions Johnson Parts (145-0701-251, 145-0701-841, 145-0701-851, 145-0701-861): These parts maintain manufacturer consistency with the primary part. Parts 145-0701-841, 145-0701-851, and 145-0701-861 are ROHS3 compliant and available in bulk packaging. Part 145-0701-251 offers extended lower operating temperature range (-45°C minimum) and is available in bag packaging with documented insertion loss specification of 0.05dB.

Amphenol SV Microwave Part (1521-60051): This cross-manufacturer substitute provides the highest inventory availability (2100 units) and ROHS3 compliance. The stainless steel body material differs from the brass construction of Cinch parts. Dielectric material is polyetherimide (PEI) rather than PTFE. Operating temperature and mating cycle specifications are not provided for this part.

Frequently Asked Questions (FAQ)

Q: Can 145-0701-251 be used in place of 145-0701-821?

A: Yes. Both parts meet all mandatory electrical and mechanical parameters. The 145-0701-251 operates across a wider temperature range (-45°C to 85°C versus -40°C to 85°C) and includes documented insertion loss specification. Packaging differs (bag versus bulk).

Q: What is the difference between Cinch and Amphenol substitute options?

A: Cinch parts maintain identical body material (brass) and dielectric material (PTFE) to the primary part. The Amphenol 1521-60051 uses stainless steel body and polyetherimide dielectric. All parts maintain equivalent electrical performance at 50 ohms and 40 GHz maximum frequency.

Q: Does packaging type affect connector performance?

A: No. Packaging type (bulk versus bag) does not affect electrical or mechanical performance. Selection should be based on procurement and handling requirements.

Q: Are all substitute parts ROHS3 compliant?

A: The Cinch parts 145-0701-841, 145-0701-851, 145-0701-861, and the Amphenol part 1521-60051 are ROHS3 compliant. Compliance status for 145-0701-251 is not specified in the provided data.

Q: Which substitute part has the best availability?

A: The Amphenol SV Microwave part 1521-60051 has the highest inventory level at 2100 units.

Q: Can I mix substitute parts in the same assembly?

A: All listed parts are electrically and mechanically equivalent and can be used interchangeably within the same application. Physical differences in body material and dielectric composition do not affect RF performance within the specified parameters.

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