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Q-TECH Corporation - 10150 W. Jefferson Boulevard, Culver City 90232 - Tel: 310-836-7900 - Fax: 310-836-2157 - www.q-tech.com
Q-TECH
CORPORATION
QT78 SERIES
HIGH-RELIABILITY MINIATURE CLOCK OSCILLATORS
1.8 to 5.0Vdc
-
15kHz to 150MHz
QT78 (RevisionC,July2008)(ECO#9380)
ReflowProfile
EmbossedTapeandReelInformationForQT78
EnvironmentalSpecifications
Thefivetransitionperiodsforthetypicalreflowprocessare:
Preheat
Fluxactivation
Thermalequalization
Reflow
Cooldown
0
20
40
60
80 100 120 140 160 180 200 220 240 260 280 300 320 340 360 380 400 420
Time (s)
25
50
75
100
125
150
175
200
225
250
TEMP(*C)
0
60s min.
120s max.
60s min.
120s max.
225 min.
240 max.
60s min.
150s max.
240
Ramp down (6C/s Max)
Ramp up (3C/s Max)
TYPICAL REFLOW PROFILE FOR Sn-Pb ASSEMBLY
Dimensionsareinmm. TapeiscomplianttoEIA-481-A.
Reelsizevs.quantity:
FEEDING (PULL) DIRECTION
13.0±0.5
2.5
4.80±0.1
5 MAX
1.5
2.0
1.75±0.1
0.3±.005
1.5
2.0±0.1
5.5±0.1
10.01±0.1
4.0±0.1
178±1
or
330±1
26
24.0±0.3
16±0.1
14.53
±0.1
120
Reelsize(Diameterinmm) Qtyperreel(pcs)
178
250
330
1000
Q-TechStandardScreening/QCI(MIL-PRF55310)isavailableforallofourQT78Products. Q-Techcanalsocustomizescreening
andtestprocedurestomeetyourspecificrequirements. TheQT78productisdesignedandprocessedtoexceedthefollowingtest
conditions:
EnvironmentalTest
TestConditions
Temperaturecycling
MIL-STD-883,Method1010,Cond.B
Constantacceleration
MIL-STD-883,Method2001,Cond.A,Y1
SealFineLeak
MIL-STD-883,Method1014,Cond.A
Burn-in
160hours,125°Cwithload
Aging
30days,70°C,±1.5ppmmax
Vibrationsinusoidal
MIL-STD-202,Method204,Cond.D
Shock,nonoperating
MIL-STD-202,Method213,Cond.I (SeeNote1)
Thermalshock,nonoperating
MIL-STD-202,Method107,Cond.B
Ambientpressure,nonoperating
MIL-STD-202,105,Cond.C,5minutesdwelltimeminimum
Resistancetosolderheat
MIL-STD-202,Method210,Cond.B
Moistureresistance
MIL-STD-202,Method106
Terminalstrength
MIL-STD-202,Method211,Cond.C
Resistancetosolvents
MIL-STD-202,Method215
Solderability
MIL-STD-202,Method208
Note1: Additionalshockresultssuccessfullypassedon16MHz,40MHz,and80MHz
Shock850gpeak,half-sine,1msduration(MIL-STD-202,Method213,Cond.Dmodified)
Shock1,500gpeak,half-sine,0.5msduration(MIL-STD-883,Method2002,Cond.B)
PleasecontactQ-Techforhighershockrequirements