RF55-27B-T-02-50-A-SH Equivalent & Substitute Parts

Part Overview

The RF55-27B-T-02-50-A-SH is an SMB Fakra connector plug manufactured by Adam Tech, designed for free hanging (in-line) crimp termination applications. This male pin connector operates at 50 ohms impedance with a maximum frequency rating of 4 GHz and is suitable for RG-174 and RG-316 cable groups. The part is currently active in production with 1002 units in stock. Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across the connector interface, ensuring functional interchangeability in RF applications.

Substiute Parts

RF55-27B-T-02-50-A-SH
Adam TechIn Stock: 1039RF55-27B-T-02-50-A-SH Datasheet
RF55-27B-T-02-50-A-SH
Current Part
RF55-31B-T-02-50-X-SH
Adam TechIn Stock: 1384RF55-31B-T-02-50-X-SH Datasheet
RF55-31B-T-02-50-X-SH
Parametric Equivalent

Key Parameters

Parameter Value
Connector Style SMB, Fakra
Connector Type Plug, Male Pin
Impedance 50 Ohms
Mounting Type Free Hanging (In-Line)
Contact Termination Crimp
Shield Termination Crimp
Frequency - Max 4 GHz
Cable Group RG-174, RG-316
Operating Temperature -40°C ~ 85°C
Housing Color White
Body Material Brass
Body Finish Nickel
Center Contact Material Brass
Center Contact Plating Gold
Dielectric Material Polytetrafluoroethylene (PTFE)
Fastening Type Locking Ramp
Number of Ports 1
Features Code B
RoHS Status ROHS3 Compliant
Moisture Sensitivity Level 1 (Unlimited)
REACH Status REACH Unaffected

Substitute Part Grouping Explanation

The RF55-31B-T-02-50-X-SH qualifies as a parametric equivalent to the RF55-27B-T-02-50-A-SH based on the following critical substitution parameters:

  • Connector Style: Both are SMB, Fakra connectors
  • Connector Type: Both are Plug, Male Pin configurations
  • Impedance: Both maintain 50 ohms
  • Mounting Type: Both are Free Hanging (In-Line)
  • Contact Termination: Both use Crimp termination
  • Shield Termination: Both use Crimp termination
  • Frequency - Max: Both rated to 4 GHz
  • Cable Group: Both support RG-174 and RG-316
  • Operating Temperature: Both operate -40°C ~ 85°C
  • Body Material and Finish: Both use Brass with Nickel finish
  • Center Contact Material and Plating: Both use Brass with Gold plating
  • Dielectric Material: Both use PTFE
  • Fastening Type: Both use Locking Ramp
  • Compliance: Both are ROHS3 Compliant and REACH Unaffected

The substitution is based on electrical and mechanical parameter equivalence. The difference in base product number (RF55-27 versus RF55-31) reflects manufacturing or design revision variations that do not affect functional interchangeability in the specified application parameters.

Parameter Comparison

Parameter RF55-27B-T-02-50-A-SH RF55-31B-T-02-50-X-SH
Manufacturer Adam Tech Adam Tech
Category Coaxial Connectors (RF) Coaxial Connectors (RF)
Connector Style SMB, Fakra SMB, Fakra
Connector Type Plug, Male Pin Plug, Male Pin
Impedance 50 Ohms 50 Ohms
Mounting Type Free Hanging (In-Line) Free Hanging (In-Line)
Contact Termination Crimp Crimp
Shield Termination Crimp Crimp
Frequency - Max 4 GHz 4 GHz
Cable Group RG-174, RG-316 RG-174, RG-316
Operating Temperature -40°C ~ 85°C -40°C ~ 85°C
Housing Color White White
Body Material Brass Brass
Body Finish Nickel Nickel
Center Contact Material Brass Brass
Center Contact Plating Gold Gold
Dielectric Material Polytetrafluoroethylene (PTFE) Polytetrafluoroethylene (PTFE)
Fastening Type Locking Ramp Locking Ramp
Number of Ports 1 1
Features Code B Code B
Product Status Active Active
RoHS Status ROHS3 Compliant ROHS3 Compliant
Moisture Sensitivity Level 1 (Unlimited) 1 (Unlimited)
REACH Status REACH Unaffected REACH Unaffected
Inventory Status 1002 Pcs New Original In Stock 1315 Pcs New Original In Stock

Engineering Selection Recommendations

Both the RF55-27B-T-02-50-A-SH and RF55-31B-T-02-50-X-SH are active production parts manufactured by Adam Tech with identical electrical and mechanical specifications. Both parts maintain ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements for electronic component procurement. Selection between these parts may be based on inventory availability, with the RF55-31B-T-02-50-X-SH currently showing higher stock levels (1315 units versus 1002 units). Both parts are suitable for direct substitution in applications requiring SMB Fakra male pin connectors with 50 ohm impedance and crimp termination for RG-174 or RG-316 cable groups.

Frequently Asked Questions (FAQ)

Q: Are RF55-27B-T-02-50-A-SH and RF55-31B-T-02-50-X-SH mechanically compatible?

A: Yes. Both connectors use identical SMB Fakra plug configurations with male pin termination, locking ramp fastening, and free hanging (in-line) mounting. They are mechanically interchangeable.

Q: Can these connectors be used interchangeably in RF applications?

A: Yes. Both parts maintain 50 ohm impedance, support frequencies to 4 GHz, and use identical dielectric materials (PTFE), center contact materials (Brass with Gold plating), and body materials (Brass with Nickel finish). They are electrically equivalent for the specified frequency range.

Q: What cable types are compatible with both connectors?

A: Both connectors support RG-174 and RG-316 cable groups with crimp termination for both contact and shield.

Q: Are there any compliance differences between these parts?

A: No. Both parts are ROHS3 compliant and REACH unaffected. Both have Moisture Sensitivity Level 1 (Unlimited).

Q: What is the operating temperature range for these connectors?

A: Both connectors operate across -40°C to 85°C.

Q: Why do these parts have different base product numbers?

A: The base product number difference (RF55-27 versus RF55-31) reflects manufacturing or design revision variations. The complete part numbers indicate these are equivalent designs that maintain all critical electrical and mechanical parameters for functional interchangeability.

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