參數(shù)資料
型號： XT38P
廠商： Vishay Intertechnology,Inc.
英文描述： Miniature SMD Watch Crystal
中文描述： 微型貼片水晶手表
文件頁數(shù)： 1/1頁
文件大?。?/td> 111K
代理商： XT38P
www.vishay.com
8
For technical questions contact: frequency@vishay.com
Document Number: 35022
Revision: 17-Jun-05
XT38P
Vishay Dale
Miniature SMD Watch Crystal
FEATURES
2.5 mm height
Industry standard footprint
Long term stability
Tape and reel, 3000 pcs
100 % Lead (Pb)-free and RoHS compliant
The XT38P is a 2.5 mm height plastic molded 32.768 KHz
SMD crystal unit. This thermoplastic molded rugged part is
perfect for your SMD applications in limited circuit space
using the watch frequency.
DIMENSIONS
in inches [millimeters]
PARABOLIC TEMPERATURE CURVE
To determine frequency stability, use parabolic curvature (k).
For example: What is stability at 45 °C
1) Change in Temperature (°C) = 45 - 25 = 20 °C
2) Change in Frequency = - 0.042 ppm*(
°C)
= - 0.042 ppm*(20)
2
= - 16.8 ppm(max)
STANDARD ELECTRICAL SPECIFICATIONS
PARAMETER
Frequency Range
Frequency Tolerance
Frequency Coefficient
Operating Temperature Range
Storing Temperature Range
Shunt Capacitance
Motional Capacitance
Load Capacitance
Insulation Resistance
Drive Level
Aging (first year)
Equivalent Series Resistance(ESR)
SYMBOL
F
O
F/F
O
K
T
OPR
T
STG
C
O
C
1
CL
IR
DL
Fa
Rs
CONDITION
UNIT
KHz
ppm
ppm/°C
2
°C
°C
pF
fF
pF
M
μW
ppm
K
MIN
TYPICAL
32.768
MAX
at 25 °C
-20
-0.027
-40
-55
+20
-0.043
+85
+125
parabolic coefficient
-0.035
1.0
2.0
12.5
500
1.0
at 25 °C ± 3 °C
±3.0
50
ORDERING INFORMATION
XT38P
MODEL
A
PAD LAYOUT
32.768 KHz
FREQUENCY/KHz
e6
JEDEC Lead
(Pb)-Free
STANDARD
#1
#2
#4
#3
±
0.2]
0.45
±
[3.7]
Max.
[0.5
±
±
0.04
0.343 [8.7] Max.
±
0.2]
0.45
±
[2.5]
Max.
XT38PA
0[5.5
±
±
0.04
- 20
- 10
0
10
20
30
40
50
60
70
- 10
- 20
- 30
- 40
- 50
- 60
F/f(ppm)
TEMPERATURE (
°
C)
GLOBAL PART NUMBER
MODEL
PAD
PACKAG
E
FREQUENCY
LAYOUT
CODE
X
T
3
8
P
A
2
K
7
6
8
A
3
RoHS
COMPLIANT
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相關代理商/技術參數(shù)
參數(shù)描述
XT38PA32.768KHZ 制造商:Vishay Dale 功能描述:Crystal Frequency:32.768MHz
XT38PAA32K768 功能描述:晶體 SMD 32.768 KHz RoHS:否 制造商:AVX 頻率:26 MHz 容差: 頻率穩(wěn)定性:50 PPM 負載電容:8 pF 端接類型:SMD/SMT 封裝 / 箱體:1210 (3225 metric) 工作溫度范圍:- 40 C to + 150 C 尺寸:2.5 mm W x 3.2 mm L x 0.85 mm H 封裝:Reel
XT38PAA32K768E6 制造商:VISHAY 制造商全稱:Vishay Siliconix 功能描述:Miniature SMD Watch Crystal
XT38PBA32K768 功能描述:晶體 SMD 32.768 KHz RoHS:否 制造商:AVX 頻率:26 MHz 容差: 頻率穩(wěn)定性:50 PPM 負載電容:8 pF 端接類型:SMD/SMT 封裝 / 箱體:1210 (3225 metric) 工作溫度范圍:- 40 C to + 150 C 尺寸:2.5 mm W x 3.2 mm L x 0.85 mm H 封裝:Reel
XT38T 制造商:VISHAY 制造商全稱:Vishay Siliconix 功能描述:Tuning Fork Crystal
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