HHS SERIES - RESISTANCE WELD CRYSTAL
The HHS series is the lowest profile HC49/USS and HC49/USSM
(surface mount) industry standard crystal, with the same lead spacing as
the HC49U/US and encased in the rugged resistance weld package.
With a maximum height of only 2.5mm for through hole type and 3.2mm
for surface mount, these crystals are both cost effective and ideal for
many space limited applications.
FEATURES:
OPTIONS:
• Lowest profile (2.5mm / 3.2mm SMD) • Extended temp. range
• Industry standard lead spacing
• Resistance welded for good aging
• Cost effective
• Surface mount package
• Insulator
• Tighter tolerance option
• Tape & Reel
ELECTRICAL SPECIFICATIONS
PARAMETERS
CONDITIONS
MINIMUM
3.200
-30*
MAXIMUM
70.000
+30*
UNIT
MHz
PPM
PPM
°C
FREQUENCY RANGE
FREQUENCY TOLERANCE
@ 25°C
3.200 - 70.000 MHz
FREQUENCY STABILITY, REF @ 25°C
OPERATING TEMPERATURE RANGE
STORAGE TEMPERATURE RANGE
SHUNT CAPACITANCE (CO)
-50*
+50*
0°C to +70°C / -40°C to +85°C
-30°C to +85°C / -55°C to +125°C
°C
7.0
pF
pF
LOAD CAPACITANCE (CL)
Per customer spec.
10.0
Series
DRIVE LEVEL
AGING CHARACTERISTICS
3.200 to 70.000 MHz
@ 25°C per year
0.5
± 5 max.
mW
PPM
* Tight tolerances optional - please specify
EQUIVALENT SERIES RESISTANCE (ESR) SPECIFICATIONS
FREQUENCY RANGE (MHz)
3.200 - 3.500
MODE
ESR (Ω) MAX FREQUENCY RANGE (MHz)
MODE
ESR (Ω) MAX
60 to 80
30 to 40
100
FUNDAMENTAL
FUNDAMENTAL 100 to 200
FUNDAMENTAL
300
8.00 - 11.99
12.00 - 30.00
27.00 - 70.00
FUNDAMENTAL
FUNDAMENTAL
3rd OVERTONE
3.500 - 5.00
5.00 - 7.99
80 to 120
PART NUMBERING GUIDE
MECHANICAL DRAWING
HC49/USS HHS TYPE
11.05 max
HC49/USSM HHS-SM TYPE
EXAMPLE: HHS2700F-20-SM
HHS
2700F
- 20
-SM
10.21
3.75
Frequency
F = Fund
(> 25 MHz)
HHS
Series
Capacitance Load
S = Series
Options
3.2 mm
4.65 max
OPTIONS:
SM:Surface Mount
E: -40+85°C
12.8 ± 0.5
11.4 ± 0.2
2.5 max
TR:Tape & Reel
INS:With Insulator
XPPM:Tolerance (specify)
SP: Per specifications
0.43
E105: -40+105°C
E55/105: -55+105°C
E125: -55+125°C
12.7 min
20.0 optional
4.83 max
1.0
4.88
4.88
8
HEC, INC. HOORAY USA • 30961 WEST AGOURA RD., SUITE 311 • WESTLAKE VILLAGE CA USA 91361
TEL: 818-879-7414 • FAX: 818-879-7417 • EMAIL: sales@hoorayusa.com • INTERNET: www.hoorayusa.com