MS-156NB(01) Equivalent & Substitute Parts

Part Overview

The MS-156NB(01) is a coaxial switch receptacle connector manufactured by Hirose Electric Co Ltd, designed for 50 Ohm RF applications with a 4mm plug diameter. This component features an internal switch mechanism, surface mount solder termination, and operates across -40°C to 85°C with a maximum frequency rating of 6 GHz. The MS-156NB(01) is classified as obsolete, making equivalent substitute parts necessary for ongoing design support and procurement.

Substiute Parts

MS-156NB(01)

Hirose Electric Co LtdIn Stock: 859MS-156NB(01) Datasheet

Current PartRFQ

MS-156HF(01)

Hirose Electric Co LtdIn Stock: 3773MS-156HF(01) Datasheet

DirectRFQ

MS-156C

Hirose Electric Co LtdIn Stock: 6596MS-156C Datasheet

MFR RecommendedRFQ

MS-156C(20)

Hirose Electric Co LtdIn Stock: 6991MS-156C(20) Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MS-156NB(01) are qualified based on the following critical parameters that must remain consistent:

• Connector style: Coaxial Switch - 4mm Plug Dia
• Connector type: Receptacle, Female Socket
• Impedance: 50 Ohms
• Mounting type: Surface Mount
• Contact termination: Solder
• Shield termination: Solder
• Fastening type: Snap-On
• Number of ports: 1
• Features: Internal Switch
• Operating temperature range: -40°C ~ 85°C
• Mating cycles: 100
• Base product number: MS-156

The substitute parts MS-156HF(01), MS-156C, and MS-156C(20) maintain these core electrical and mechanical specifications. Variations in frequency rating, insertion loss, dielectric material composition, and product status are documented in the parameter comparison table below.

Parameter Comparison

Engineering Selection Recommendations

MS-156HF(01) is the direct functional equivalent with active product status. This part maintains the 6 GHz frequency specification of the original MS-156NB(01) and carries RoHS compliance certification. Insertion loss increases from 0.1 dB to 0.15 dB. Packaging is supplied in Strip format.

MS-156C and MS-156C(20) are manufacturer-recommended alternatives with enhanced frequency capability (11 GHz maximum). Both parts carry active product status and RoHS compliance. These parts feature Copper Alloy center contact material and Nylon 6T dielectric composition. Insertion loss is specified at 0.4 dB. MS-156C(20) is packaged in Tape & Reel format, while MS-156C is also available in Tape & Reel. The higher frequency rating provides design margin for applications operating below 6 GHz.

All substitute parts maintain identical impedance (50 Ohms), connector geometry (4mm coaxial switch receptacle), mounting configuration (surface mount solder), and operating temperature range (-40°C to 85°C). Selection should be based on application frequency requirements, packaging logistics, and compliance documentation needs.

Frequently Asked Questions (FAQ)

Q: Can MS-156HF(01) directly replace MS-156NB(01) in existing designs?

A: Yes. MS-156HF(01) maintains the same 6 GHz frequency rating, 50 Ohm impedance, surface mount solder termination, and connector geometry. The 0.05 dB increase in insertion loss is within typical RF circuit tolerances. Packaging differs (Strip vs. unspecified), which may affect procurement and assembly processes.

Q: What is the primary difference between MS-156HF(01) and MS-156C?

A: MS-156HF(01) is rated to 6 GHz with 0.15 dB insertion loss. MS-156C is rated to 11 GHz with 0.4 dB insertion loss. Both maintain 50 Ohm impedance and identical connector specifications. The frequency and insertion loss differences reflect different design specifications within the MS-156 family.

Q: Are MS-156C and MS-156C(20) interchangeable?

A: Yes. Both parts are electrically and mechanically identical. The primary difference is packaging: MS-156C(20) is supplied in Tape & Reel format, while MS-156C is also available in Tape & Reel. Inventory levels differ (6553 Pcs vs. 6966 Pcs).

Q: Does the dielectric material change affect performance?

A: The MS-156NB(01) uses Nylon 9T dielectric, while MS-156HF(01), MS-156C, and MS-156C(20) use Nylon 6T. Both materials meet the operating temperature range (-40°C to 85°C) and MSL 1 (Unlimited) moisture sensitivity specification. Material composition differences are within the MS-156 family design envelope.

Q: Are all substitute parts RoHS compliant?

A: MS-156HF(01), MS-156C, and MS-156C(20) are RoHS Compliant. The original MS-156NB(01) does not specify RoHS status. All parts maintain REACH Unaffected status and EAR99 export classification.

Q: What is the impact of the 0.3 dB insertion loss increase when using MS-156C?

A: MS-156C insertion loss is specified at 0.4 dB compared to 0.1 dB for MS-156NB(01). This 0.3 dB difference represents the performance trade-off for the extended 11 GHz frequency capability. Circuit design must account for this attenuation in RF signal path calculations.