MS-151NB Coaxial Switch Connector - Equivalent & Substitute Parts

Part Overview

The MS-151NB is a coaxial switch receptacle connector manufactured by Hirose Electric Co Ltd, designed for RF applications requiring 50-ohm impedance. This surface-mount, right-angle connector features an internal switch mechanism with a 4.15mm plug diameter and female socket configuration. The part is currently discontinued at DiGi Electronics, making substitute part identification essential for ongoing production and maintenance applications. Alternative models within the MS-151NB series maintain identical electrical and mechanical specifications while offering different packaging or availability status.

Substiute Parts

MS-151NB

Hirose Electric Co LtdIn Stock: 905MS-151NB Datasheet

Current PartRFQ

MS-151NB-1

Hirose Electric Co LtdIn Stock: 2737MS-151NB-1 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The MS-151NB-1 qualifies as a direct substitute based on identical electrical and mechanical parameters. Substitution eligibility is determined by the following critical parameters:

• Connector style and plug diameter (4.15mm)
• Connector type (Receptacle, Female Socket)
• Impedance rating (50 Ohms)
• Mounting configuration (Surface Mount, Right Angle)
• Contact and shield termination method (Solder)
• Maximum frequency rating (3 GHz)
• Operating temperature range (-40°C ~ 85°C)
• Insertion loss specification (0.6dB)
• Mating cycle rating (5000)

The MS-151NB-1 maintains all these parameters identically to the main part, with the primary difference being packaging format (Tape & Reel) and product status (Active vs. Discontinued).

Parameter Comparison

Engineering Selection Recommendations

The MS-151NB-1 is the direct equivalent substitute for the discontinued MS-151NB. Both parts are manufactured by Hirose Electric Co Ltd and carry identical RoHS Compliant certification status. The MS-151NB-1 is currently in active production with higher inventory availability (2,726 pieces in stock versus 852 pieces for the original part).

Selection between these parts should be based on packaging requirements and supply chain considerations. The MS-151NB-1 is supplied in Tape & Reel format, which is standard for automated assembly processes. If bulk quantities or alternative packaging are required, contact the manufacturer directly for availability options.

Both parts meet the same electrical performance specifications for RF applications up to 3 GHz and maintain identical mechanical compatibility for surface-mount, right-angle solder termination applications.

Frequently Asked Questions (FAQ)

Q: Can MS-151NB-1 be used as a direct replacement for MS-151NB?

A: Yes. The MS-151NB-1 is electrically and mechanically identical to the MS-151NB. All critical parameters including impedance, frequency rating, insertion loss, operating temperature, and mating cycle specifications are identical. The primary difference is packaging format and product status.

Q: What is the difference between MS-151NB and MS-151NB-1?

A: The MS-151NB-1 is supplied in Tape & Reel (TR) packaging, while the MS-151NB uses standard packaging. The MS-151NB-1 is currently in active production status, whereas the MS-151NB is discontinued at DiGi Electronics. All electrical and mechanical specifications are identical.

Q: Are there any compatibility concerns when substituting MS-151NB-1 for MS-151NB?

A: No compatibility concerns exist. Both connectors feature identical solder termination methods, mounting configurations, and mechanical dimensions. PCB layout and assembly processes require no modification.

Q: What packaging format is the MS-151NB-1 supplied in?

A: The MS-151NB-1 is supplied in Tape & Reel (TR) format, which is standard for automated pick-and-place assembly operations.

Q: Are both parts RoHS compliant?

A: Yes. Both the MS-151NB and MS-151NB-1 are RoHS Compliant and carry identical Moisture Sensitivity Level (MSL) rating of 1 (Unlimited).