B28

Item

Requirements

Test Conditions

1. Contact resistance

Inner

: 10 m ohms max.

Outer

: 3 m ohms max.

10 mA max.

2. Insulation resistance

5000 M ohms min.

500 V DC

3. Withstanding voltage

No flashover or insulation breakdown.

500 V AC / 1 minute

4. V.S.W.R.(*)

1.3 N max.

DC to 3 GHz

5. Female contact retention

0.137 N min.

Measured with a

6. Insertion and withdrawal force (plug) 0.56 N min.

With corresponding connector

7. Durability (Insertion/withdrawal)

Contact resistance: Amount of change 20 m ohms max. 10,000 cycles

12. Hydrogen sulfide gas

Contact resistance: Amount of change 20 m ohms max.

No damage, cracks, or parts looseness.

Leave for 96 hours in an atmosphere of 3ppm concentration

sulfur dioxide gas at temperature of 40°C and humidity of 80%.

13. Salt spray

No marked corrosion

Exposed to density 5% salt water for 48 hours

8. Vibration

No electrical discontinuity of 1µs or more

No damage, cracks, or parts looseness.

Frequency: 10 to 2000 Hz, single amplitude of 0.76 mm or

9. Shock

No electrical discontinuity of 1µs or more

No damage, cracks, or parts looseness.

waveform, 6 cycles in each of the 3 axis

10. Humidity (Steady state)

Insulation resistance: 100 M ohms min.

Contact resistance: Amount of change 20 m ohms max.

No damage, cracks, or parts looseness.

240 hours at temperature of -10ç to 65ç and humidity of

90% to 96%

11. Temperature cycle

No damage, cracks, or parts looseness.

Temperature: -65°C ¡ 20 to 35°C ¡ 125°C ¡ 20 to 35°C

Time:

30 min ¡ Within 5 min ¡ 30 min. ¡ Within 5 min

Cycles:

5

s Product Specifications

sMaterials

Part

Material

Finish

Body

Beryllium copper/Brass

Gold plating

Insulator

PTFE

––––––––

Female inner contact

Beryllium copper

Gold plating

Male inner contact

Phosphor bronze

Gold plating

Crimp sleeve

Copper

Nickel plating

]

]

qw

e

J

: Jack

R

: Receptacle

PR

: Plug receptacle

178: RG-178B/U (

RG-196B/U (

Network Analyzer

Test Set

Test Port

Test Port Cable

D.U.T

Termination

*Voltage standing wave ratio (V.S.W.R.) measuring system.

The above voltage standing wave ratio (V.S.W.R.) standard value is measured in the measuring system as shown below.

Note1: The cable connector is measured with double ended 10cm cable

assembly.

Note2: The printed circuit board connector is mounted on the 50 ohms PCB, to

which Hirose's adaptor is connected.

sOrdering Information

Ratings

Nominal characteristic impedance

50 ohms

Voltage

150 V AC

Rated Frequency

DC to 3 GHz

Operating temperature

-20°C to +60°C

Operating humidity

95% or less