Key facts
- Brand
- AKER
- Model
- CA4-4
- 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 CA4-4.000-18-3050-X Manual
The AKER CA4-4.000-18-3050-X is a quartz crystal unit designed for precise frequency control in electronic circuits. It features a nominal frequency of 4.000 MHz with tight tolerance and stability specifications.
The device complies with RoHS lead‑free requirements and includes detailed electrical and mechanical parameters such as load capacitance, ESR, drive level, and temperature operating ranges. It is supplied in an HC‑49/U‑S‑SMD package with four mounting pads.
AKER CA4-4 specifications
| Nominal Frequency | 4.000 MHz |
|---|---|
| Frequency Tolerance at 25°C | +30 |
| Frequency Stability over Temperature Range | +50 PPM Max |
| Operating Temperature Range (Extended) | -40 to +85 °C |
| Storage Temperature Range | -55 to +125 |
| Aging per Year | +3 PPM Max |
| Load Capacitance | 18 pF |
| Shunt Capacitance (Maximum) | 7 pF |
| Equivalent Series Resistance (ESR) | 120 Ohms Max |
| Drive Level | 100 Typ - 500 Max µW |
| Solder Reflow Characteristics | +260 °C for 10 s Max |
Source: AKER - aker-usa.com 11-3 Chien-Kuo Rd T.E.P.Z. 4027 Taiwan ROC CA4-4.000-18-3050-X Manual
All AKER CA4-4 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 CA4-4.000-18-3050-X crystal?
The nominal frequency is 4.000 MHz.
From: AKER - aker-usa.com 11-3 Chien-Kuo Rd T.E.P.Z. 4027 Taiwan ROC CA4-4.000-18-3050-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 CA4-4.000-18-3050-X Manual
What is the nominal frequency of the CA4-4.194304-18-3050-X crystal?
The nominal frequency is 4.194304 MHz.
From: AKER - aker-usa.com 11-3 Chien-Kuo Rd T.E.P.Z. 4027 Taiwan ROC CA4-4.194304-18-3050-X Quartz Manual
What is the operating temperature range of this crystal?
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 CA4-4.194304-18-3050-X Quartz Manual
What is the nominal frequency of the CA4-4.194304-18-3050-X crystal?
The nominal frequency is 4.194304 MHz.
From: AKER - aker-usa.com 11-3 Chien-Kuo Rd T.E.P.Z. 4027 Taiwan ROC CA4-4.194304-18-3050-X Manual
What is the operating temperature range of this crystal unit?
It operates from –40 °C to +85 °C.
From: AKER - aker-usa.com 11-3 Chien-Kuo Rd T.E.P.Z. 4027 Taiwan ROC CA4-4.194304-18-3050-X Manual
