AKER HC-49 U-Through Hole Quartz Crystal Unit Handbook (4)
Summary
Designed for precision electronic applications, this datasheet details a high-stability Quartz Crystal Unit operating at 7.3728 MHz. The manual provides comprehensive technical specifications, including precise electrical ratings, temperature stability parameters, and mechanical guidelines. It serves as an essential resource for electronics engineers and design professionals needing reliable frequency standards for complex circuit development requiring stable performance across extended operational temperature ranges.
Page 1 Text Content
Revisions Ltr Date Appr
Ro HS Compliant Pb - Lead Free
Electrical Specifi cations: Nominal Frequency 7.3728 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 100 Typ - 500 Max u W 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: 1538711TR
Review: KG
Appr: EG
Part Number: C-7.3728-18-3050-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 (4)
Manual Details
| Brand | Crystal |
|---|---|
| Pages | 1 |
| File Size | 49.74 KB |
| Published | May 18, 2026 |
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Frequently Asked Questions
What is the operating temperature range?
The operating temperature range is -40 to +85 º C.
How accurate is the frequency tolerance at 25°C?
It has a Frequency Tolerance of ±30 PPM at 25°C.
What are the maximum electrical specifications for this crystal?
The maximum load capacitance is 18 pF, and the shunt capacitance is 7.
Can this unit be used in high-temperature environments?
Yes, the extended operating temperature range covers -40 to +85 º C. The storage range is -55 to +125.
What type of mounting does this crystal require?
It uses a Through Hole package and has dimensions in millimeters.