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参数资料
| 型号： | T7256-FREQ |
| 厂商： | VALPEY FISHER CORP |
| 元件分类： | XO, clock |
| 英文描述： | CRYSTAL OSCILLATOR, CLOCK, 0.02 MHz - 100 MHz, HCMOS OUTPUT |
| 封装： | HERMETIC SEALED, CERAMIC, SMD, 4 PIN |
| 文件页数： | 1/2页 |
| 文件大小： | 81K |
| 代理商： | T7256-FREQ |
75 South Street, Hopkinton, MA 01748 800-982-5737 508-435-6831 FAX 508-435-5289 www.valpeyfisher.com
1
MECHANICAL SPECIFICATIONS
Gross Leak-Each unit checked in 125°C fluorocarbon
Fine Leak-Mass spectrometer leak rate less than 2X10-8
Case-Hermetically sealed ceramic package
Pads-60 microinch of gold over nickel
Marking-Epoxy ink or laser inscribed
Resistance to Solvents-MIL STD 202, Method 215
Non-
Tristate
Model
Tristate
Model
Frequency
Stability
Temperature
T7250
T9250
+/-75ppm
-40 to + 85°C
T7254
T9254
+/-50ppm
0 to + 175°C
T7256
T9256
+/-75ppm
-55 to + 85°C
T7258
T9258
+/-100ppm
-40 to + 85°C
T7001
T9301
+/-500ppm
-55 to + 200°C
T7002
T9302
+/-500ppm
0 to 200°C
T7003
T9303
+/-250ppm
-55 to + 200°C
T7004
T9304
+/-250ppm
0 to 200°C
T7005
T9305
+/-250ppm
-55 to 175°C
T7006
T9306
+/-250ppm
0 to 175°C
T7007
T9307
+/-150ppm
-55 to 175°C
T7008
T9308
+/-150ppm
0 to 175°C
T7009
T9309
+/-100ppm
-55 to 125°C
T7010
T9310
+/-50ppm
-55 to +85°C
T7011
T9311
+/-25ppm
-55 to + 85°C
T7012
T9312
+/-75ppm
-55 to +125°C
T7013
T9313
+/-50ppm
-55 to +125°C
T7250, T7254, T7256, T7258, T7001 thru T7013,
T9250, T9254, T9256, T9258, T9301 thru T9313
Extended Temperature/COTS
5X7 mm Surface Mount
Owing to their small size, light weight, and rugged characteristics, these 3.3V 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 six 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
Any electronic circuit requiring 3.3V HCMOS
clocking that is exposed to very high or very low
temperatures such as oil drilling or weather
observation equipment
Features
Tiny 5X7 SMD form factor
Hermetically sealed for rugged
environmental conditions
Extremely wide operating temperature
range accommodates harsh environments
All crystals are processed in-house with
tight angle control to assure best
frequency-temperature characteristics
All 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 5V parts are available in series
T1254
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