Fairchild LED55B, LED55C, LED56 service manual
0.040 (1.02)
0.100 (2.54)
0.050 (1.27)
45°
0.040 (1.02)
13
0.030 (0.76)
NOM
0.184 (4.67)
0.209 (5.31)
1.00 (25.4)
MIN
0.255 (6.48)
ANODE
(CASE)
Ø0.020 (0.51) 2X
PACKAGE DIMENSIONS
FEATURES
• Good optical to mechanical alignment
• Mechanically and wavelength matched to the TO-18 series phototransistor
• Hermetically sealed package
• High irradiance level
NOTES:
1. Dimensions for all drawings are in inches (mm).
2. Tolerance of ± .010 (.25) on all non-nominal dimensions
unless otherwise specified.
DESCRIPTION
The LED55B/LED55C/LED56 are 940 nm LEDs in a narrow angle, TO-46 package.
SCHEMATIC
2001 Fairchild Semiconductor Corporation
DS300312 6/05/01 1 OF 4 www.fairchildsemi.com
GaAs INFRARED EMITTING DIODE
LED55B LED55C LED56
查询LED55B供应商
ANODE
(Connected
To Case)
CATHODE
3
1
www.fairchildsemi.com 2 OF 4 6/05/01 DS300312
Parameter Symbol Rating Unit
Operating Temperature T
OPR
-65 to +125 °C
Storage Temperature T
STG
-65 to +150 °C
Soldering Temperature (Iron)
(3,4,5 and 6)
T
SOL-I
240 for 5 sec °C
Soldering Temperature (Flow)
(3,4 and 6)
T
SOL-F
260 for 10 sec °C
Continuous Forward Current I
F
100 mA
Forward Current (pw, 1µs; 200Hz) I
F
10 A
Reverse Voltage V
R
3V
Power Dissipation(TA= 25°C)
(1)
P
D
170 mW
Power Dissipation(TC= 25°C)
(2)
P
D
1.3 W
ABSOLUTE MAXIMUM RATINGS
(TA= 25°C unless otherwise specified)
PARAMETER TEST CONDITIONS SYMBOL MIN TYP MAX UNITS
Peak Emission Wavelength IF= 100 mA !
P
— 940 — nm
Emission Angle at 1/2 Power IF= 100 mA " — ±8 — Deg.
Forward Voltage IF= 100 mA V
F
— — 1.7 V
Reverse Leakage Current VR= 3 V I
R
— — 10 µA
Total Power LED55B
(7)
IF= 100 mA P
O
3.5 — — mW
Total Power LED55C
(7)
IF= 100 mA P
O
5.4 — — mW
Total Power LED56
(7)
IF= 100 mA P
O
1.5 — — mW
Rise Time 0-90% of output t
r
— 1.0 — µs
Fall Time 100-10% of output t
f
— 1.0 — µs
ELECTRICAL / OPTICAL CHARACTERISTICS
(TA =25°C) (All measurements made under pulse conditions)
NOTE:
1. Derate power dissipation linearly 1.70 mW/°C above 25°C ambient.
2. Derate power dissipation linearly 13.0 mW/°C above 25°C case.
3. RMA flux is recommended.
4. Methanol or isopropyl alcohols are recommended as cleaning agents.
5. Soldering iron tip
1/16” (1.6mm) minimum from housing.
6. As long as leads are not under any stress or spring tension
7. Total power output, P
O
, is the total power radiated by the device into a solid angle of 2 # steradians.
GaAs INFRARED EMITTING DIODE
LED55B LED55C LED56
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