AKER HC-49 U-Through Hole Quartz Crystal Unit handbook
Summary
Optimize your electronic designs with this high-precision Quartz Crystal Unit. Featuring a nominal frequency of 3.579545 MHz, this RoHS compliant component ensures stable timing performance across extended operating temperatures (-40°C to +85°C). The accompanying manual provides comprehensive electrical and mechanical specifications, including capacity tolerances and soldering guidelines. Ideal for electronics engineers and manufacturers requiring reliable, high-quality oscillator components in through-hole packages.
Page 1 Text Content
Revisions Ltr Date Appr
Ro HS Compliant Pb - Lead Free
Electrical Specifi cations: Nominal Frequency 3.579545 MHz Mode of Oscillation Fundamental Frequency Tolerance at 25°C ±30
PPM Max
Frequency Stability over Temperature Range ±50 Operating Temperature Range (Extended) -40 to +85
Storage Temperature Range -55 to +125 Aging per Year ±3 PPM Max Load Capacitance
Shunt Capacitance (Maximum) Equivalent Series Resistance (ESR) Ohms Max Drive Level u W Max Solder Reflow Characteristics +260 for 10 s Max º C Mechanical Specifi cations:
Specifi cation Title:
Quartz Crystal Unit HC-49/U-Through Hole
11-3 Chien-Kuo Rd T.E.P.Z. 4027 Taiwan, ROC
Product Specifi cation
All dimensions are millimeters.
Farnell Order Code: 1538704TR
Review: KG
Appr: EG
Part Number: C-3.579545-18-3050-X
Page: 1/1 Date: Jan. 18, 2008
www.aker-usa.com
Page Summary Contents For AKER HC-49 U-Through Hole Quartz Crystal Unit handbook
Manual Details
| Brand | Crystal |
|---|---|
| Pages | 1 |
| File Size | 49.84 KB |
| Published | May 18, 2026 |
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Frequently Asked Questions
What is the recommended operating temperature range for this crystal unit?
The extended operating temperature range is -40 to +85 °C.
Is this component compatible with RoHS standards?
Yes, it is listed as RoHS Compliant and Lead Free.
What load capacitance should be used when mounting the unit?
The maximum load capacitance specified is 18 pF.
What are the specifications for soldering reflow assembly?
It requires a reflow process at +260°C for 10 seconds.
What is the nominal operating frequency of the crystal unit?
The nominal frequency is 3.579545 MHz.