SMD Quartz Crystal
Series Number Package Description Last Modified
228 4.1 x 1.5 Chip Type SMD Quartz Crystal Nov. 17, 2011
FEATURES
- 4.1x1.5mm ceramic package tuning for crystal resonator type quartz crystal
- Suitable for telecommunications and other applications.
- Low profile of 0.75mm
- Tight stability / High reliability
- Cost Efficient
- Tape and Reel
- RoHS / Lead Free compliant
4.1 x 1.5 mm chip type quartz crystal

OPERATING CONDITIONS / ELECTRICAL CHARACTERISTICS
PARAMETERS

SYMBOL

CONDITION MINIMUM TYPICAL MAXIMUM UNITS
Frequency Range Fo - - 32.768 - KHz
Frequency Tolerance F/Fo @ 25șC ±10 ±20 ±100 ppm
Temperature Coefficient K REFTO25șC - - -0.042 ppm(șC)
Operating Temperature TORP - -40 - +85 șC
Storage Temperature TSTG - -40 - +85 șC
Shunt Capacitance Co - - 1.5 2 pF
Motional Capacitance C1 - - 2 4 fF
Load Capacitance CL - 6 12.5 Series pF
Insulation Resistance IR 100VDC 500 - - M
Drive Level DL - - - 1 ” W
Aging (First Year) Fa @25șC±30șC -5.0 - +5.0 Ppm
Equivalent Series Resistance (ESR) RS - - - 50 K
. .
drawing of 2 pad quartz crystal 228 series
PART NUMBER GUIDE
Example: 228-32.768K-12.5-20W-TR
Series
Number
Frequency Load Capacitance Tolerance @ +25șC Operating 
Temp ( șC )
Packaging**
228 32.768K 12.5 20 W TR
Oscilent
4.1 x 1.5 SMD

Enter desired frequency.

Avail. = 32.768KHz

Enter desired capacitance here.

Avail. = 6 ~ 12.5pF
* SR for series
Blank * = ±30 PPM
10 = ±10 PPM
15 = ±15 PPM
20 = ±20 PPM
25 = ±25 PPM
50 = ±50 PPM
Avail. = ±10 ~ ±100
P =  0~+50
R =  -10~+60
S =  -20~+70
T = -30~+80
W = -40~+85
Blank* = Bulk
TR = Tape/Reel
NOTE: Deviations on all parameters available.  Please consult Oscilent for details.
DEFINITIONS: Click on the characteristic names above for definitions of that particular characteristic.
*STANDARDS: "Blank" part number selections indicate standard variables for that particular characteristic.
**PACKAGING: Click on the packaging name above for tape/reel specifications
Series No.:
228

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