QUARTZ CRYSTAL
Holder Code A, RESISTANCE WELDED HC-49/U PACKAGE
FEATURE
Height 13.46mm
A resistance weld completely sealed type
The tight frequency stability
Copes with high density mounting and is the optimum for
mass production
Lead Free & RoHS Compliant
ELECTRICAL SPECIFICATIONS
Nominal frequency:
Oscillation mode:
Operating temperature range
Storage temperature range
Frequency tolerance:
Frequency stability
Load capacitance:
Equivalent series resistance
Parallel capacitance(Co):
Drive level
Insulation resistance:
1.8432MHz to 150.000MHz
See below table
-20℃--+70℃ (Typical), -10℃ ~ +60℃,
-40℃ ~ +85℃, or specify
-40℃--+85℃
±30PPM
at 25±2℃ (Typical), or specify
±50PPM
over -20~70℃ (Typical), or specify
16pF, 18pF, 20pF, 30pF, series, or specify
See below table
7PF Max
100 µW Typical
More than 500MΩ AT DC100V
EQUIVALENT SERIES RESISTANCE(ESR) AND OSCILLATION MODE
Frequency Range
1.843MHz~1.999MHz
2.000MHz~2.399MHz
2.400MHz~2.999MHz
3.000MHz~3.199MHz
3.200MHz~3.499M
Hz
3.500MHz~3.899MHz
3.900MHz~4.099MHz
4.100MHz~5.999MHz
E.S.R
(
Ω)
350Max
300Max
200Max
150Max
100Max
90Max
70Max
60Max
Mode
Fundamental/AT
Fundamental/AT
Fundamental/AT
Fundamental/AT
Fundamental/AT
Fundamental/AT
Fundamental/AT
Fundamental/AT
Frequency Range
6.000MHz~6.999MHz
7.000MHz~9.999MHz
10.000MHz~12.999MHz
13.000MHz~30.000MHz
24.000MHz~29.999MHz
30.000MHz~65.000MHz
60.000MHz~99.999MHz
100.000MHz~150.000MH
z
E.S.R
(
Ω)
50Max
30Max
20Max
20Max
50Max
40Max
90Max
60Max
Mode
Fundamental/
AT
Fundamental/
AT
Fundamental/
AT
Fundamental/
AT
Third
Overtone
Third
Overtone
Third
Overtone
Fundamental/
AT
DB Lectro Inc. 3755 Place Java, Suite 140, Brossard, Québec, J4Y 0E4, Canada - T: 1-450-444-1424 / F: 1-450-444-4714 / www.dblectro.com
Mechanical characteristics
Resistance to shock:
±3PPM Max ±3
Ma , auay rpi t s nah r
Ω x N trl do t i o
l
3 me
ad
wood plate from 100cm height
± P M Ma ± ΩMa
3P
x 3
x
Resistance to vibration:
Reliability
Aging
Air tightness
(1) Gross leak
(2) Fine leak
Low drive characteristics
±3PPM Max/Year
should be immerged in hot water(90±5
℃
) for 5 minutes
sh
u b l s h n5 1
-8
atmcc/sec by helium leak
o l e e ta х 0
d
s
detector
Me s rdΔ ,13p i a 10,01 0 W
a ue 1C , o t t ., ,0 µ
n
1
Dimension
Reflow Condition
DB Lectro Inc. 3755 Place Java, Suite 140, Brossard, Québec, J4Y 0E4, Canada - T: 1-450-444-1424 / F: 1-450-444-4714 / www.dblectro.com
CRYSTAL PART NUMBER SYSTEM
HOLDER DESCRIPTION
HC49/U
CODE
A
PART NUMBER EXPLANATION - HOW TO ORDER
3,5795MHZ 17PF 30PPM/50PPM FUNDAMENTAL BULK (ROHS COMPLIANT)
D3A5795-17305EFB-G
DB LECTRO Inc.
D
FIRST FIVE NUMBERS OF THE FREQUENCY WITH HOLDER CODE AT DECIMAL POINT
3A5795
"-" REGULAR PACKAGE
-
"I" ISOLATED WITH WASHER
"V" VINYL SLEEVE
"C" CUT LEAD
"T" THIRD LEG GROUND
LOAD CAPACITANCE (17PF)
17
FREQUENCY TOLERENCE (30PPM)
30
FREQUENCY STABILITY AT OPERATING TEMPERATURE:
0=5PPM
5
OPERATING TEMPERATURE RANGE
1=10PPM
E
"E" EXTENDED TEMP.
-40°C+85°C
2=20PPM
"Blank" TYPICAL TEMP. -20°C+70°C
3=30PPM
"A" STANDARD TEMP. -10°C+60°C
5=50PPM (TYPICAL)
"F" FUNDAMENTAL
6=100PPM
F
"T" THIRD OVERTONE
"5" FIFTH OVERTONE
"7" SEVENTH OVERTONE
"B" BULK
B
"T" TAPE / REEL
"G" TAPE / REEL / GULLWING
"C" TAPE / REEL / CRIMPED LEADS
ROHS COMPLIANT
G
DB Lectro Inc. 3755 Place Java, Suite 140, Brossard, Québec, J4Y 0E4, Canada - T: 1-450-444-1424 / F: 1-450-444-4714 / www.dblectro.com
模拟与混合信号
