Key facts
- Brand
- AKER
- Model
- 3728-18-3050-X
- Industry
- Industrial
- Documents
- 3
- Languages
- EN
- Last added
- 2012-04-12
Start here

AKER - aker-usa.com 11-3 Chien-Kuo Rd T.E.P.Z. 4027 Taiwan ROC CA-7.3728-18-3050-X Manual
This datasheet provides the key electrical specifications for the AKER quartz crystal unit, including nominal frequency, tolerance, stability, temperature ranges, and drive level. It also lists mechanical dimensions and reflow characteristics relevant for PCB assembly.
The document includes part identification, ordering information, and compliance notes such as RoHS and lead‑free status. All values are presented in metric units and are suitable for designers selecting the component for timing and frequency control applications.
AKER 3728-18-3050-X specifications
| Nominal Frequency | 7.3728 MHz |
|---|---|
| Frequency Tolerance at 25°C | +30 ppm |
| Frequency Stability over Temperature | +50 ppm Max |
| Operating Temperature Range (Extended) | -40 to +85 °C |
| Storage Temperature Range | -55 to +125 °C |
| Aging per Year | +3 ppm Max |
| Load Capacitance | 18 pF |
| Shunt Capacitance (Maximum) | 7 pF |
| Equivalent Series Resistance (ESR) | 80 Ω Max |
| Drive Level | 100 µW Typ – 500 µW Max |
| Solder Reflow Characteristics | +260 °C for 10 s Max |
| Mechanical Height | 11.35 mm Max |
Source: AKER - aker-usa.com 11-3 Chien-Kuo Rd T.E.P.Z. 4027 Taiwan ROC CA-7.3728-18-3050-X Manual
All AKER 3728-18-3050-X documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the nominal frequency of the AKER crystal unit?
The nominal frequency is 7.3728 MHz.
From: AKER - aker-usa.com 11-3 Chien-Kuo Rd T.E.P.Z. 4027 Taiwan ROC CA-7.3728-18-3050-X Manual
What temperature range can the crystal operate in?
It operates from –40 °C to +85 °C (extended range).
From: AKER - aker-usa.com 11-3 Chien-Kuo Rd T.E.P.Z. 4027 Taiwan ROC CA-7.3728-18-3050-X Manual
What is the nominal frequency of the CAA-7.3728-18-3050-X crystal?
The nominal frequency is 7.3728 MHz.
From: AKER - aker-usa.com 11-3 Chien-Kuo Rd T.E.P.Z. 4027 Taiwan ROC CAA-7.3728-18-3050-X Manual
What is the load capacitance of this quartz crystal unit?
The load capacitance is 18 pF.
From: AKER - aker-usa.com 11-3 Chien-Kuo Rd T.E.P.Z. 4027 Taiwan ROC CAA-7.3728-18-3050-X Manual
What is the nominal frequency of the AKER CA4-7.3728-18-3050-X crystal?
The nominal frequency is 7.3728 MHz.
From: AKER - aker-usa.com 11-3 Chien-Kuo Rd T.E.P.Z. 4027 Taiwan ROC CA4-7.3728-18-3050-X Manual
Is the crystal RoHS compliant?
Yes, the crystal is RoHS compliant and lead‑free.
From: AKER - aker-usa.com 11-3 Chien-Kuo Rd T.E.P.Z. 4027 Taiwan ROC CA4-7.3728-18-3050-X Manual
