Pin # Function
1V
O
2 Ground
3 Open
4V
CC
5 Do not connect
8 Do not connect
Note: Pins 5 and 8 are for mounting and retaining
purposes only. Do not electrically connect these pins.
HFBR-25X3 Receiver
4
3
2
1
DO NOT CONNECT 5
DO NOT CONNECT 8
OPEN
V
CC
GROUND
V
O
18
Receiver Electrical/Optical Characteristics 0°C to 70°C, 4.5 V ≤V
CC
≤5.5 V unless otherwise specified.
Parameter Symbol Min. Typ. Max. Units Conditions Ref.
Input Optical Power P
R(L)
–39 –13.7 dBm V
O
= V
OL
, I
OL
= 3.2 mA Notes 1,
Level Logic 0 –39 –13.3 V
O
= V
OL
,
I
OH
= 8 mA, 25°C
Input Optical Power P
R(H)
–53 dBm V
OH
= 5.5 V Note 3
Level Logic 1 I
OH
= ≤40 µA
High Level Output Voltage V
OH
2.4 V I
O
= -40 µA, P
R
= 0 µW
Low Level Output Voltage V
OL
0.4 V I
OL
= 3.2 mA Note 4
P
R
= P
R(L)MIN
High Level Supply Current I
CCH
1.2 1.9 mA V
CC
= 5.5 V, P
R
= 0 µW
Low Level Supply Current I
CCL
2.9 3.7 mA V
CC
= 5.5 V, Note 4
P
R
= P
RL
(MIN)
Effective Diameter D 1 mm
Numerical Aperture NA 0.5
Notes:
1. Measured at the end of the fiber optic cable with large area detector.
2. Optical flux, P (dBm) = 10 Log P(µW)/1000 µW.
3. Because of the very high sensitivity of the HFBR-25X3, the digital output may switch in response to ambient light levels when a cable is not
occupying the receiver optical port. The designer should take care to filter out signals from this source if they pose a hazard to the system.
4. Including current in 3.3 k pull-up resistor.
2, 3
Absolute Maximum Ratings
Parameter Symbol Min. Max. Units Reference
Storage Temperature T
S
–40 +85 °C
Operating Temperature T
A
–40 +85 °C
Lead Soldering Cycle Temp. 260 °C Note 1
Time 10 sec
Supply Voltage V
CC
–0.5 7 V Note 2
Average Output Collector Current I
O
–15mA
Output Collector Power Dissipation P
OD
25 mW
Output Voltage V
O
–0.5 7 V
Notes:
1. 1.6 mm below seating plane.
2. It is essential that a bypass capacitor 0.01 µF be connected from pin 2 to pin 3 of the receiver.
