Datasheet
2
Plastic Optical Fiber Specifications: HFBR-R/EXXYYYZ
Absolute Maximum Ratings
Parameter Symbol Min. Max. Unit Note
Storage and Operating Temperature T
S,O
-55 +85 °C
Recommended Operating Temperature T
O
-40 +85 °C
Installation Temperature T
I
-20 +70 °C1
Short Term Tensile Single Channel F
T
50 N 2
Dual Channel F
T
100 N
Short Term Bend Radius r 25 mm 3, 4
Long Term Bend Radius r 35 mm
Long Term Tensile Load F
T
1N
Flexing 1000 Cycles 4
Force
Mechanical/Optical Characteristics, T
A
= -40 to +85°C unless otherwise specified.
Parameter Symbol Min. Typ.
[5]
Max. Unit Condition
Cable Standard Cable, α
O
0.15 0.22 0.27 dB/m Source is HFBR-15XXZ
Attenuation Type "R" (660 mm LED, 0.5 NA)
Extra Low Loss, 0.15 0.19 0.23 = 50 meters
Type "E"
Reference Standard Cable, α
R
0.12 0.19 0.24 dB/m Source is 650 nm,
Attenuation Type "R" 0.5 NA monochrometer,
Extra Low Loss, 0.12 0.16 0.19 = 50 meters
Type "E" Note 7, Figure 1
Numerical Aperture NA 0.46 0.47 0.50 >2 meters
Diameter, Core and Cladding D
C
0.94 1.00 1.06 mm
Diameter, Jacket D
J
2.13 2.20 2.27 mm Simplex Cable
Propagation Delay Constant l/v 5.0 ns/m Note 6
Mass per Unit Length/Channel 5.3 g/m Without Connectors
Cable Leakage Current I
L
12 nA 50 kV, = 0.3 meters
Refractive Index Core n 1.492
Cladding 1.417
Notes:
1. Installation temperature is the range over which the cable can be bent and pulled without damage. Below -20°C the cable becomes brittle and
should not be subjected to mechanical stress.
2. Short Term Tensile Force is for less than 30 minutes.
3. Short Term Bend Radius is for less than 1 hour nonoperating.
4. 90° bend on 25 mm radius mandrel. Bend radius is the radius of the mandrel around which the cable is bent.
5. Typical data are at 25°C.
6. Propagation delay constant is the reciprocal of the group velocity for propagation delay of optical power. Group velocity is v=c/n where c is the
velocity of light in free space (3xl0
8
m/s) and n is the effective core index of refraction.
7. Note that α
R
rises at the rate of about 0.0067 dB/°C, where the thermal rise refers to the LED temperature changes above 25°C. Please refer to
Figure 1 which shows the typical plastic optical fiber attenuation versus wavelength at 25°C.