SML-310
SML-310 is Small/ chip LEDs manufactured by ROHM.
Features
1) Four colors: red, orange, yellow and green. 2) Rectangular and leadless (1.6 x 0.8 mm, 0.8 mm thick) 3) Can be mounted by automatic mounting.
Cathode index
Electrode
Tolerances are ±0.1 unless otherwise noted:
!Selection guide
Emitting color Red Lens SML-310JT Transparent clear SML-310LT SML-310VT SML-310DT SML-310YT SML-310MT SML-310PT SML-310FT Orange Yellow Green
!Absolute maximum ratings (Ta=25°C)
Parameter Power dissipation Forward current Peak forward current Reverse voltage Operating temperature Storage temperature Symbol Bright red (L, J) PD IF IFP VR Topr Tstg 60 25 75 4 -30~+85 -40~+85 Limits Other colors 55 20 60 m W m A m A- V ˚C ˚C Unit
- Pulse width 1ms Duty 1 / 5
SML-310 Series
LED lamps
!Electrical and optical characteristics (Ta=25°C)
Parameter Color Type JT LT VT SML-310 DT YT MT FT PT Red Red Red Orange Yellow Green Green Green Forward voltage VF(V) Typ. 1.9 1.75 2.0 2.0 2.1 2.2 2.2 2.2 Max. 2.5 2.5 2.8 2.8 2.8 2.8 2.8 2.8 Cond. IF(m A) 20 20 20 20 20 20 20 20 Reverse current IR(µA) Cond. Max. 100 100 100 100 100 100 100 100 VR(V) 4 4 4 4 4 4 4 4 Luminous intensity IV(mcd) Min. 14.0 3.6 1.4 2.2 2.2 3.6 1.4 1.4 Cond. Peak wavelength Typ. 660 660 650 610 585 570 560 555 IF(m A) 20 20 20 20 20 20 20 20 Spectral line half width Typ. 25 25 40 40 40 40 40 40 IF(m A) 20 20 20 20 20 20 20 20
λP(m) Cond. ∆λ(nm) Cond.
Typ. IF(m A) 40.0 10.0 4.0 6.3 6.3 16.0 4.0 4.0 20 20 20 20 20 20 20 20
!Directional pattern
(X-Y) 20 30 40 50 60 70 80 90 100 10 ANGLE (˚) 0 10 20 30 40 50 60 70 80 90 100 70 80 90 100 60 50 40 30 (X'-Y' ) 20 10 ANGLE (˚) 0 10 20 30 40 50 60 70 80 90 100
RELATIVE LUMINOUS INTENSITY (%)
RELATIVE LUMINOUS INTENSITY (%)
Fig. 1 Directional pattern
!Electrical characteristics curves 1 (SML-310LT, SML-310JT) (Bright red)
50 SML-310LT
FORWARD CURRENT : IF (m A)
Ta=25˚C SML-310JT
RELATIVE LUMINOUS INTENSITY
RELATIVE LUMINOUS INTENSITY
IF = 20m...
