Datasheet
VISHAY
TSUS540.
Document Number 81056
Rev. 1.4, 08-Apr-04
Vishay Semiconductors
www.vishay.com
1
94 8389
GaAs Infrared Emitting Diodes in ∅ 5 mm (T-1¾) Package
Description
TSUS540. series are infrared emitting diodes in stan-
dard GaAs on GaAs technology, molded in a clear,
blue-grey tinted plastic package. The devices are
spectrally matched to silicon photodiodes and pho-
totransistors.
Features
• Low cost emitter
• Low forward voltage
• High radiant power and radiant intensity
• Suitable for DC and high pulse current operation
• Standard T-1¾ (∅ 5 mm) package
• Comfortable angle of half intensity ϕ = ± 22°
• Peak wavelength λ
p
= 950 nm
• High reliability
• Good spectral matching to Si photodetectors
• Lead-free device
Applications
Infrared remote control and free air transmission sys-
tems with low forward voltage and comfortable radia-
tion angle requirements in combination with PIN
photodiodes or phototransistors.
Absolute Maximum Ratings
T
amb
= 25 °C, unless otherwise specified
Parameter Test condition Symbol Value Unit
Reverse Voltage V
R
5V
Forward current I
F
150 mA
Peak Forward Current t
p
/T = 0.5, t
p
= 100 µsI
FM
300 mA
Surge Forward Current t
p
= 100 µsI
FSM
2.5 A
Power Dissipation P
V
210 mW
Junction Temperature T
j
100 °C
Operating Temperature Range T
amb
- 55 to + 100 °C
Storage Temperature Range T
stg
- 55 to + 100 °C
Soldering Temperature t ≤ 5 sec, 2 mm from case T
sd
260 °C
Thermal Resistance Junction/Ambient R
thJA
375 K/W