Series T1250-T1258, T3250-T3258,
T4001-T4009, T4301-T4309
Extended Temperature/COTS
XO, 5.0V
Features
20kHz to 100MHz frequency range
5X7 SMD form factor
Hermetically sealed for rugged environmental
conditions
Extremely wide operating temperature range
accommodates harsh environments
Crystals are processed with tight angle control to
assure best frequency-temperature characteristics
Units are vacuum baked before sealing at 175°C for
16 hours to eliminate moisture traces and pre-age
units for superior stability
Tristate feature optional
Equivalent 3.3V parts are available in
T7250 series
Solder coating of outer pads upon request
RoHS Status
Tinned pad parts are
5/6 RoHs compliant
Description
Owing to their small size, light weight, and
rugged characteristics, these 5.0V HCMOS
extended temperature/COTS oscillators fulfill
tasks not previously feasible. They are used in
applications that take advantage of their
extended temperature range and high
performance. Twenty four different models (with
and without tristate) cover -55°C to +200°C
operation and provide frequency selection from
20kHz to 100MHz. They combine excellent long-
term reliability, loading characteristics, and
superior startup performance.
Applications
Applications that require an HCMOS5.0V clock
and might be exposed to extremely harsh
environmental conditions.
Electrical Specifications
Parameter
Frequency
Range
Frequency
Stability
Operating
Temperature
Aging
Supply
Voltage
Supply
Current
Output
Symmetry
Rise and Fall
Times
Input
requirement
for pin.1
V
CC
Symbol
F
∆F/F
T
First Year
After First Year
4.5
Overall condition including calibration,
temperature voltage and load
variation
Condition
Min
0.02
75
-55
3
1
5.0
5.5
40
All units, full range
Loads 3 TTL loads, or 10 LSTTL loads, or 15pF CMOS
TTL and LSTTL @ 1.4V
CMOS, @ 50% V
DD
TTL and LSTTL from 0.4 to 2.4V
CMOS, 15 pF, from 0.4 to (V
DD
-0.4) V
CMOS, 30 pF, from 0.4 to (V
DD
-0.4) V
Output enable -
Output disable (Tristate)
40/60
40/60
8
8
10
%
ns
Typ
Max
100
±500
+200
Unit
MHz
ppm
C
ppm
ppm/yr
V
mA
See Chart
See Chart
85C
Note
pin 1 may float or 2.8V min
pin 1 requires 0.4V max
North America: +1-800-757-6686 • International: +1-508-435-6831 • Asia: +65-655-17551 • www.ctscorp.com
Specifications are subject to change without notice.
1
RevF0614
Series T1250-T1258, T3250-T3258,
T4001-T4009, T4301-T4309
Extended Temperature/COTS
XO, 5.0V
Environmental and Mechanical Conditions
Parameter
Shock
Vibration
Humidity
Gross Leak
Fine Leak
Case
Pads*
Marking
Resistance to Solvents
Condition
1000 Gs, 0.35 ms, ½ sine wave, 3 shocks in each plane
10-2000 Hz of 0.06" d.a. or 20 Gs, whichever is less
Resistant to 85° R.H. at 85°C
Each unit checked in 125°C fluorocarbon
Mass spectrometer leak rate less than 2x10
-8
atm, cc/sec of helium
Ceramic with glass hermetic seal
40 microinch of gold over nickel or tinned (solder coated)
Epoxy ink or laser engraved
MIL STD 202, Method 215
*Tinned by Hot dip solder in accordance with MIL-M38510 (63/37 Sn/Pb)
FIXED OUTPUT
Model
T1250
T1254
T1256
T1258
T4001
T4002
T4003
T4004
T4005
T4006
T4007
T4008
T4009
TRISTATE
Model
T3250
T3254
T3256
T3258
T4301
T4302
T4303
T4304
T4305
T4306
T4307
T4308
T4309
Frequency
Stability
±75ppm
±100 ppm
±75 ppm
±100 ppm
±500 ppm
±500 ppm
±250 ppm
±250 ppm
±250 ppm
±250 ppm
±150 ppm
±150 ppm
±100 ppm
Operating
Temperature
‐40° to +85°C
0° to +175°C
‐55° to +85°C
‐40° to +85°C
‐55° to +200°C
0° to 200°C
‐55° to +200°C
0° to +200°C
‐55° to +175°C
0° to +175°C
‐55° to +175°C
0° to +175°C
‐55° to +125°C
Waveforms
Waveforms
North America: +1-800-757-6686 • International: +1-508-435-6831 • Asia: +65-655-17551 • www.ctscorp.com
Specifications are subject to change without notice.
2
RevF0614
Series T1250-T1258, T3250-T3258,
T4001-T4009, T4301-T4309
Extended Temperature/COTS
XO, 5.0V
Pin Assignments
Pin
Non-Tristate
Models
Tristate Models
Floating or 1 :
Oscillator runs
NOT USED
Ground or 0 :
Disable or
Tristate
Ground and Case
Output
+5.0V, V
DD
Package Outline
1
2
3
4
How to Order
T
1 2 5 0
-
“1250” is
model type
Marking Specification
-
TL
Model Type
FREQ.
“T” is SMD
(gold pads)
T package
“ “ is none
“TL“ is tinned pads*
*5/6
RoHs compliant
T1250
40.000
XXYYH
Date Code
Frequency
in MHz
Manufacturer’s Code
North America: +1-800-757-6686 • International: +1-508-435-6831 • Asia: +65-655-17551 • www.ctscorp.com
Specifications are subject to change without notice.
3
RevF0614
Series T1250-T1258, T3250-T3258,
T4001-T4009, T4301-T4309
Extended Temperature/COTS
XO, 5.0V
Recommended Reflow Soldering Profile
North America: +1-800-757-6686 • International: +1-508-435-6831 • Asia: +65-655-17551 • www.ctscorp.com
Specifications are subject to change without notice.
4
RevF0614
Series T1250-T1258, T3250-T3258,
T4001-T4009, T4301-T4309
Extended Temperature/COTS
XO, 5.0V
TABLE 2
Reliability Test Procedures and Conditions for Quartz Crystal Oscillators
1. Group A
Electrical Characteristics at 25°C
Frequency at nominal supply voltage and endpoints
Input current
Symmetry (Duty Cycle)
Zero/One levels
Rise/Fall times
Frequency (verify frequency at the temperature extremes)
Physical Dimensions
Length/width
Height
Package finish (Corrosion, discoloration, etc.)
Marking placement/legibility
2. Group B
1000 hrs at or above 125°C, nominal voltage, proper load
(sample size by MIL -PRF-55310 table 6, max. aging within 15
years requirement without catastrophic failures)
3. Group C- All units have passed Group A testing
A. Subgroup 1: 8 pcs.
Standard
MIL-STD-883
Condition
Method 2002
COND.B
Method 2007
COND. A
Description
Mechanical Shock
1500 g’s, 0.5ms
5 drops, 6 axis
Vibration, var.
freq. 20 g’s,
0.06” disp., 20-
20, 000-20 Hz
Solderability
End Point
Measurement
Frequency
Output waveform
Frequency
Output waveform
B.
Standard
MIL-STD-883
Subgroup 2: 4 pcs (One-half of Subgroup 1)
Condition
Method 1011
COND. B
Description
Thermal Shock
Liq. To liq.
15 cycles
Altitude, 3.44
inch Hg. 12 hrs
Moisture resist.
with supply
voltage applied
25°C to 65°C,
90 to 100% RH,
10 cycles
End point
Measurement
Frequency
Output waveform
MIL-STD-202
MIL-STD-883
Method 105
COND. B
Method 1004
Frequency
Output waveform
Frequency
Output waveform
MIL-STD-202
Method 210
COND. A
Resistance to
Frequency
Solder Heat
Output waveform
Immersion @350ºC
3.5 sec
C.
Standard
Subgroups 3: 4 pcs. (One half of Subgroup 1)
Condition
Storage Temp.
No. Oper
Method 1009
COND. A
Method 1014
COND. A
Method 1014
COND. C
Description
24 hrs. @ -55°C
24 hrs. @ 125°C
Salt Atmosphere
24 hrs. @ 35°C
0.5-3.0% Solution
Fine Leak
Gross Leak
End point
Measurement
Frequency
Output waveform
Frequency
Output waveform
Visual
Qs <5 X10
-8
MIL-STD-883
MIL-STD-883
MIL-STD-883
Visual 95%
Coverage
MIL-STD-883
MIL-STD-883
Method 2003
Visual in 125°C
Detector fluid
Test data is available for additional cost.
North America: +1-800-757-6686 • International: +1-508-435-6831 • Asia: +65-655-17551 • www.ctscorp.com
Specifications are subject to change without notice.
5
RevF0614
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