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TFDU4301-TR1 Datasheet(PDF) 7 Page - Vishay Siliconix

Part # TFDU4301-TR1
Description  Infrared Transceiver Module (SIR, 115.2 kbit/s) for IrDA짰 Applications
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Manufacturer  VISHAY [Vishay Siliconix]
Direct Link  http://www.vishay.com
Logo VISHAY - Vishay Siliconix

TFDU4301-TR1 Datasheet(HTML) 7 Page - Vishay Siliconix

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TFDU4301
Infrared Transceiver Module (SIR, 115.2 kbit/s)
for IrDA® Applications
Vishay Semiconductors
Document Number: 81965
For technical questions within your region, please contact one of the following:
irdasupportAM@vishay.com, irdasupportAP@vishay.com, irdasupportEU@vishay.com
www.vishay.com
Rev. 1.0, 22-Apr-10
7
RECOMMENDED SOLDER PROFILES
Solder Profile for Sn/Pb Soldering
Fig. 4 - Recommended Solder Profile for Sn/Pb Soldering
Lead (Pb)-free, Recommended Solder Profile
The TFDU4301 is a lead (Pb)-free transceiver and qualified
for lead (Pb)-free processing. For lead (Pb)-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 5 and 6 are VISHAY's recommended profiles for use
with the TFDU4301 transceivers. For more details please
refer to the application note “SMD Assembly Instructions”.
A ramp-up rate less than 0.9 °C/s is not recommended.
Ramp-up rates faster than 1.3 °C/s could damage an optical
part because the thermal conductivity is less than compared
to a standard IC.
Wave Soldering
For TFDUxxxx and TFBSxxxx transceiver devices wave
soldering is not recommended.
Manual Soldering
Manual soldering is the standard method for lab use.
However,
for
a
production
process
it
cannot
be
recommended because the risk of damage is highly
dependent on the experience of the operator. Nevertheless,
we added a chapter to the above mentioned application note,
describing manual soldering and desoldering.
Storage
The
storage
and
drying
processes
for
all
VISHAY
transceivers (TFDUxxxx and TFBSxxx) are equivalent to
MSL4.
The data for the drying procedure is given on labels on the
packing and also in the application note “Taping, Labeling,
Storage and Packing”.
Fig. 5 - Solder Profile, RSS Recommendation
Fig. 6 - RTS Recommendation
0
20
40
60
80
100
120
140
160
180
200
220
240
260
0
50
100
150
200
250
300
350
Time/s
2 to 4 °C/s
2 to 4 °C/s
10 s max. at 230 °C
120 to180 s
160 °C max.
240 °C max.
90 s max.
19535
0
25
50
75
100
125
150
175
200
225
250
275
0
50
100
150
200
250
300
350
Time/s
30 s max.
2 °C/s to 3 °C/s
2 °C/s to 4 °C/s
90 s to 120 s
T
≥ 217 °C for 70 s max.
Tpeak = 260 °C
70 s max.
T
≥ 255 °C for 10 s....30 s
19532
0
40
80
120
160
200
240
280
0
50
100
150
200
250
300
Time/s
< 4 °C/s
1.3 °C/s
Time above 217 °C t
≤ 70 s
Time above 250 °C t
≤ 40 s
Peak temperature Tpeak = 260 °C
< 2 °C/s
Tpeak = 260 °C max.
TFDU Fig3


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