SZ-100-BM BNC Male Plug Crimp Connector Equivalent & Substitute Parts

Part Overview

The SZ-100-BM is an active BNC male plug crimp connector manufactured by Amphenol Times Microwave Systems, designed for 50 Ohm coaxial cable applications. This connector is rated for LMR-100 cable group with a maximum frequency of 4 GHz and operating temperature range of -65°C to 165°C. The part is RoHS compliant and currently in stock with 908 units available. Equivalent substitute parts are necessary when the primary part becomes unavailable, when specific cable group compatibility is required, or when operational temperature and performance specifications differ for particular application requirements.

Key Parameters

Parameter	SZ-100-BM
Manufacturer	Amphenol Times Microwave Systems
Connector Style	BNC
Connector Type	Plug, Male Pin
Impedance	50 Ohms
Contact Termination	Push On
Shield Termination	Crimp
Mounting Type	Free Hanging (In-Line)
Fastening Type	Bayonet Lock
Cable Group	LMR-100
Frequency - Max	4 GHz
Operating Temperature	-65°C ~ 165°C
Voltage Rating	500 V
Center Contact Plating	Gold
Body Material	Brass
Body Finish	Nickel
Dielectric Material	Polytetrafluoroethylene (PTFE)
RoHS Status	RoHS Compliant
Product Status	Active

Substitute Part Grouping Explanation

Substitute parts for the SZ-100-BM are qualified based on the following core parameters that must remain constant across all equivalent connectors:

Fixed Parameters (Must Match):

Connector Style: BNC
Connector Type: Plug, Male Pin
Impedance: 50 Ohms
Contact Termination: Push On
Shield Termination: Crimp
Mounting Type: Free Hanging (In-Line)
Fastening Type: Bayonet Lock
Frequency - Max: 4 GHz
Number of Ports: 1
Center Contact Plating: Gold
Dielectric Material: Polytetrafluoroethylene (PTFE)

Variable Parameters (Cable Group Specific):

Cable Group: LMR-100, LMR-195, LMR-200, LMR-240, LMR-400
Operating Temperature Range: Varies by substitute
Body Material/Finish: Varies by substitute
Center Contact Material: Varies by substitute

All substitute parts (EZ-195-BM-X, EZ-200-BM-X, EZ-240-BM-X, EZ-400-BM-X) maintain the core electrical and mechanical specifications while accommodating different cable group requirements and operational temperature ranges.

Parameter Comparison

Parameter	SZ-100-BM	EZ-195-BM-X	EZ-200-BM-X	EZ-240-BM-X	EZ-400-BM-X
Connector Style	BNC	BNC	BNC	BNC	BNC
Connector Type	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
Contact Termination	Push On	Push On	Push On	Push On	Push On
Shield Termination	Crimp	Crimp	Crimp	Crimp	Crimp
Mounting Type	Free Hanging (In-Line)	Free Hanging (In-Line)	Free Hanging (In-Line)	Free Hanging (In-Line)	Free Hanging (In-Line)
Fastening Type	Bayonet Lock	Bayonet Lock	Bayonet Lock	Bayonet Lock	Bayonet Lock
Frequency - Max	4 GHz	4 GHz	4 GHz	4 GHz	4 GHz
Cable Group	LMR-100	LMR-195	LMR-200	LMR-240	LMR-400
Operating Temperature	-65°C ~ 165°C	-40°C ~ 85°C	-40°C ~ 125°C	-55°C ~ 85°C	-55°C ~ 155°C
Voltage Rating	500 V	Not specified	Not specified	500 V	Not specified
Mating Cycles	500	Not specified	500	500	Not specified
Center Contact Plating	Gold	Gold	Gold	Gold	Gold
Dielectric Material	Polytetrafluoroethylene (PTFE)	Not specified	Polytetrafluoroethylene (PTFE)	Polytetrafluoroethylene (PTFE)	Polytetrafluoroethylene (PTFE)
RoHS Status	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS Compliant	ROHS3 Compliant
Product Status	Active	Active	Active	Active	Active
Inventory	908 Pcs	996 Pcs	1775 Pcs	662 Pcs	1164 Pcs

Engineering Selection Recommendations

All substitute parts maintain active product status and are manufactured by Amphenol Times Microwave Systems, ensuring consistent quality and design standards. Selection between the SZ-100-BM and its equivalents is determined by cable group compatibility and operational temperature requirements:

SZ-100-BM is specified for LMR-100 cable group with the widest operating temperature range (-65°C to 165°C) and is RoHS compliant. This part is optimal for applications requiring extreme temperature performance.

EZ-200-BM-X is specified for LMR-200 cable group with operating temperature range of -40°C to 125°C and is ROHS3 compliant. This part offers the highest inventory availability (1775 units) and maintains 500 mating cycles specification.

EZ-240-BM-X is specified for LMR-240 cable group with operating temperature range of -55°C to 85°C and is RoHS compliant. This part maintains 500 V voltage rating and 500 mating cycles specification.

EZ-400-BM-X is specified for LMR-400 cable group with operating temperature range of -55°C to 155°C and is ROHS3 compliant. This part includes insertion loss specification of 0.1 dB and is packaged in bulk format.

EZ-195-BM-X is specified for LMR-195 cable group with operating temperature range of -40°C to 85°C and is ROHS3 compliant. This part offers high inventory availability (996 units).

Frequently Asked Questions (FAQ)

Q: Can I use EZ-200-BM-X as a direct replacement for SZ-100-BM?

A: EZ-200-BM-X is electrically and mechanically equivalent to SZ-100-BM for the core BNC connector specifications (50 Ohm impedance, bayonet lock, crimp shield termination, 4 GHz maximum frequency). However, the primary difference is cable group compatibility: EZ-200-BM-X is designed for LMR-200 cable, while SZ-100-BM is designed for LMR-100 cable. Substitution is valid only when your application uses LMR-200 cable. Additionally, EZ-200-BM-X has a reduced operating temperature range (-40°C to 125°C) compared to SZ-100-BM (-65°C to 165°C).

Q: What is the significance of cable group designation in connector selection?

A: Cable group designation (LMR-100, LMR-195, LMR-200, LMR-240, LMR-400) indicates the specific coaxial cable diameter and impedance characteristics for which the connector is optimized. Each connector is mechanically and electrically designed to mate with its designated cable group. Using a connector with an incorrect cable group results in poor electrical performance, mechanical instability, and potential signal integrity issues.

Q: Are all substitute parts RoHS compliant?

A: SZ-100-BM and EZ-240-BM-X are RoHS compliant. EZ-195-BM-X, EZ-200-BM-X, and EZ-400-BM-X are ROHS3 compliant. Both certifications meet current environmental and hazardous substance restrictions; ROHS3 represents the most current revision of the directive.

Q: What is the difference between operating temperature ranges across these parts?

A: Operating temperature range defines the thermal limits within which the connector maintains specified electrical and mechanical performance. SZ-100-BM supports -65°C to 165°C, the widest range among all options. EZ-400-BM-X supports -55°C to 155°C. EZ-200-BM-X supports -40°C to 125°C. EZ-240-BM-X and EZ-195-BM-X support -55°C to 85°C and -40°C to 85°C respectively. Selection must align with your application's thermal environment.

Q: Does packaging format affect connector performance?

A: Packaging format (Bag versus Bulk) does not affect connector electrical or mechanical performance. SZ-100-BM, EZ-195-BM-X, EZ-200-BM-X, and EZ-240-BM-X are supplied in Bag packaging. EZ-400-BM-X is supplied in Bulk packaging. Packaging selection is based on order quantity and inventory management requirements.

Q: What does the mating cycles specification indicate?

A: Mating cycles specification indicates the number of times a connector can be mated and unmated while maintaining specified electrical and mechanical performance. SZ-100-BM, EZ-200-BM-X, and EZ-240-BM-X are rated for 500 mating cycles. EZ-195-BM-X and EZ-400-BM-X do not have specified mating cycle ratings in the provided data.

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