TFDU4202-TR3 Vishay, TFDU4202-TR3 Datasheet - Page 7

• Manufacturer Part Number: TFDU4202-TR3
• Description: Infrared Transceivers Low Power Trans
• Manufacturer: Vishay

Specifications of TFDU4202-TR3

• Wavelength: 900 nm
• Continual Data Transmission: 115.2 Kbit/s
• Radiant Intensity: 45 mW/sr
• Pulse Width: 1.41 us, 20 us
• Maximum Rise Time: 70 ns, 200 ns
• Maximum Fall Time: 70 ns, 200 ns
• Maximum Forward Current: 125 mA
• Operating Voltage: 2.4 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 25 C
• Dimensions: 7.1 mm x 4.7 mm x 2.8 mm
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Temperature Derating Diagram
Recommended Solder Profile
Solder Profile for Sn/Pb soldering
Document Number 82541
Rev. 1.8, 05-Dec-05
Figure 2. Recommended Solder Profile for Sn/Pb soldering
18097
260
240
220
200
180
160
140
120
100
80
60
40
20
0
90
85
80
75
70
65
60
55
50
0
2.0
Figure 1. Temperature Derating Diagram
2...4 °C/s
2.5
50
Operating Voltage [V] at duty cycle 20 %
3.0
19260
100
275
250
225
200
175
150
125
100
75
50
25
0
0
3.5
160 °C max.
120 s...180 s
240 °C max.
150
2 °C...3 °C/s
Time/s
4.0
50
200
2...4 °C/s
4.5
T ≥ 217 °C for 70 s max
T ≥ 255 °C for 10 s....30 s
Figure 3. Solder Profile, RSS Recommendation
10 s max. at 230 °C
5.0
90 s max.
250
100
5.5
300
90 s...120 s
19431_1
6.0
150
350
Time/s
200
The temperature derating diagram shows the maxi-
mum operating temperature when the device is oper-
ated without external current limiting resistor. A power
dissipating resistor of 2 Ω is recommended from the
cathode of the IRED to Ground for supply voltages
above 4 V. In that case the device can be operated up
to 85 °C, too.
Lead-Free, Recommended Solder Profile
The TFDU4202 is a lead-free transceiver and quali-
fied for lead-free processing. For lead-free solder
paste like Sn-(3.0 - 4.0)Ag-(0.5 - 0.9)Cu, there are two
standard reflow profiles: Ramp-Soak-Spike (RSS)
and Ramp-To-Spike (RTS). The Ramp-Soak-Spike
profile was developed primarily for reflow ovens
heated by infrared radiation. With widespread use of
forced convection reflow ovens the Ramp-To-Spike
profile is used increasingly. Shown below in figure 2 is
Vishay’s recommended profile for use with the
TFDU4202 transceivers. For more details please
refer to Application note: SMD Assembly Instruction.
30 s max.
70 s max.
250
T
peak
300
= 260 °C
2 °C...4 °C/s
Vishay Semiconductors
350
TFDU4202
www.vishay.com
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