FEATURES
• Reflector package
• Wide viewing angle of 130°
• Water clear optics
• Moisture-proof packaging
• Available in 0.315” (8mm) width tape on 7” (178mm) diameter reel; 2,000 units per reel
1
24
3
1
24
3
HER / AlGaAs Red / Yellow (-34)
Green / Yellow (-23)
0.138 (3.5)
0.130 (3.3)
0.063 (1.6)
0.055 (1.4)
0.010 (0.26)
0.007 (0.18)
0.002 (0.05)
0.189 (4.8)
0.173 (4.4)
0.110 (2.8)
0.102 (2.6)
TOP
SIDE
POLARITY
NOTE:
Dimensions for all drawings are in inches (mm).
PACKAGE DIMENSIONS
QTLP680C-23 HER/Yellow QTLP680C-24 HER/Green
QTLP680C-34 Yellow/Green QTLP680C-74 AlGaAs Red/Green
SURFACE MOUNT LED LAMP
STANDARD BRIGHT REFLECTOR
(DUAL COLOR)
DESCRIPTION
Designed with a reflective housing, these surface mount LEDs offer uniform lighting and high light output performance.
APPLICATIONS
• Backlighting
• Status indication for consumer electronics and other
equipment
2001 Fairchild Semiconductor Corporation
DS300107 8/31/01 1 OF 6 www.fairchildsemi.com
Parameter Symbol QTLP680C Units
-23 -24 -34 -74
Luminous Intensity (mcd)
Minimum IV7 / 7 7 / 10 7 / 10 9 / 10 IF= 20mA
Typical 15 / 15 15 / 20 15 / 20 15 / 20
Forward Voltage (V)
Maximum VF2.8 / 2.8 2.8 / 2.8 2.8 / 2.8 2.4 / 2.8 IF= 20mA
Typical 2.0 / 2.0 2.0 / 2.0 2.0 / 2.0 1.9 / 2.0
Wavelength (nm) DP
Peak 635 / 585 635 / 565 585 / 565 660 / 565 IF= 20mA
Dominant DD630 / 590 630 / 570 590 / 570 645 / 570
Spectral Line Half Width (nm) D 45 / 35 45 / 30 35 / 30 20 / 30 IF= 20mA
Viewing Angle (°) 201/2130 130 130 130 IF= 20mA
Parameter Symbol QTLP680C Units
-23 -24 -34 -74
Continuous Forward Current IF30 / 30 30 / 30 30 / 30 30 / 30 mA
Peak Forward Current IFM 160 / 160 160 / 160 160 / 160 180 / 160 mA
(f = 1.0 KHz, Duty Factor = 1/10)
Reverse Voltage VR 5555V
Power Dissipation PD84 / 84 84 / 84 84 / 84 72 / 84 mW
Operating Temperature TOPR -40 to +85 °C
Storage Temperature TSTG -40 to +90 °C
Lead Soldering Time TSOL 260 for 5 sec °C
ELECTRICAL / OPTICAL CHARACTERISTICS (TA=25°C)
ABSOLUTE MAXIMUM RATINGS (TA=25°C Unless otherwise specified)
QTLP680C-23 HER/Yellow QTLP680C-24 HER/Green
QTLP680C-34 Yellow/Green QTLP680C-74 AlGaAs Red/Green
SURFACE MOUNT LED LAMP
STANDARD BRIGHT REFLECTOR
(DUAL COLOR)
www.fairchildsemi.com 2 OF 6 8/31/01 DS300107
Fig. 3 Relative Intensity vs. Peak Wavelength
1.0
0.5
0
300 350 400 450 500 550 600 650 700 750
90
IF - FORWARD CURRENT (mA) RELATIVE INTENSITY
VF - FORWARD VOLTAGE (V)
WAVELENGTH (nm)
Fig. 1 Forward Current vs. Forward Voltage
40
50
60
70
80
30
20
10
0
1.0 2.0 2.5 3.0 4.0 5.0
IF - DC FORWARD CURRENT (mA)
RELATIVE LUMNOUS INTENSITY
(NORMALIZED AT 20 mA)
Fig. 2 Relative Luminous Intensity vs.
DC Forward Current
2.0
1.5
1.0
0.5
0.0
0 5 10 15 20 25 30
YELLOW
GREEN
HER
AlGaAs
RED
HER
YELLOW
GREEN
IF - FORWARD CURRENT (mA)
TA - AMBIENT TEMPERATURE (˚C)
Fig.5 Maximum Forward Current
vs. Ambient Temperature
50
40
30
20
10
0
0 20 40 60 80 100
AlGaAs
RED
GREEN
HER
AlGaAs REDYELLOW
REL. LUMINOUS INTENSITY (%)
-80˚80˚
-70˚70˚
-60˚60˚
-50˚50˚
-40˚40˚
-30˚30˚
-20˚20˚
-10˚10˚
0˚
1.0 0.8 0.6 0.4 0.2 0 0.2 0.4 0.6 0.8 1.0
Fig.4 Radiation Diagram
-90˚90˚
TYPICAL PERFORMANCE CURVES
QTLP680C-23 HER/Yellow QTLP680C-24 HER/Green
QTLP680C-34 Yellow/Green QTLP680C-74 AlGaAs Red/Green
SURFACE MOUNT LED LAMP
STANDARD BRIGHT REFLECTOR
(DUAL COLOR)
DS300107 8/31/01 3 OF 6 www.fairchildsemi.com
60 - 120 sec
Preheating
+5° C/s MAX -5° C/s MAX
120 - 150° C MAX
5 sec MAX
soldering time
240° C MAX
0.183 (4.64)
0.167 (4.24)
0.075 (1.9)
0.067 (1.7)
0.033 (0.84)
0.025 (0.64)
0.024 (0.6 )
0.016 (0.4)
RECOMMENDED PRINTED CIRCUIT BOARD PATTERN
RECOMMENDED IR REFLOW SOLDERING PROFILE
QTLP680C-23 HER/Yellow QTLP680C-24 HER/Green
QTLP680C-34 Yellow/Green QTLP680C-74 AlGaAs Red/Green
SURFACE MOUNT LED LAMP
STANDARD BRIGHT REFLECTOR
(DUAL COLOR)
www.fairchildsemi.com 4 OF 6 8/31/01 DS300107
QTLP680C-23 HER/Yellow QTLP680C-24 HER/Green
QTLP680C-34 Yellow/Green QTLP680C-74 AlGaAs Red/Green
2.5±0.5
Ø178.0±1.0
Ø13.0±0.5
2.5±0.5
13.2±1.5
16.0±0.2
Ø60.2±0.5
Progressive direction
Polarity
1.75
2.0±0.05 4.0
12.0±0.3
1.55±0.05
5.5±0.05
8.0±0.1
0.25
4.75
1.98
Dimensional tolerance is ± 0.1mm unless otherwise specified
Angle: ± 0.5
Unit: mm
TAPE AND REEL DIMENSIONS
SURFACE MOUNT LED LAMP
STANDARD BRIGHT REFLECTOR
(DUAL COLOR)
DS300107 8/31/01 5 OF 6 www.fairchildsemi.com
SURFACE MOUNT LED LAMP
STANDARD BRIGHT REFLECTOR
(DUAL COLOR)
QTLP680C-23 HER/Yellow QTLP680C-24 HER/Green
QTLP680C-34 Yellow/Green QTLP680C-74 AlGaAs Red/Green
DISCLAIMER
FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO
ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME
ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED
HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF
OTHERS.
LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD
SEMICONDUCTOR CORPORATION. As used herein:
1. Life support devices or systems are devices or
systems which, (a) are intended for surgical
implant into the body,or (b) support or sustain life,
and (c) whose failure to perform when properly
used in accordance with instructions for use provided
in labeling, can be reasonably expected to result in a
significant injury of the user.
2. A critical component in any component of a life support
device or system whose failure to perform can be
reasonably expected to cause the failure of the life
support device or system, or to affect its safety or
effectiveness.
www.fairchildsemi.com 6 OF 6 8/31/01 DS300107
