Washable Epoxy Coated Resonator (ZTA)

Washable Epoxy Coated Resonator (ZTA)

Direct (ZTA) washable epoxy coated ceramic resonator is compatible to Murata resonator CSA. Direct resonators MHz (ZTA) series cover the frequency range of 1.79 MHz to 60.00 MHz with an initial frequency tolerance fo±0.5%, stability ±0.3% at operating temperature -20°C ~ +80°C, and aging tolerance ±0.3%. The tight tolerance frees the design engineers from having to use Quartz Crystals higher cost components and still achieve desired performance and reliability targets.

Tolerance is the main key characteristics to evaluate for a resonator. The total tolerance is the addition of the initial tolerance, temperature tolerance and aging tolerance. Tighter tolerances are possible through design advancements, material refinement and manufacturing techniques. Direct's design and material improve the temperature and aging characteristics of the resonator. Direct's manufacturing ability sort to tighter initial tolerances.

Direct (ZTA) resonators implement the mechanical resonance of piezoelectric ceramics, that result in different vibration behaviors (modes) depending on the resonance frequency. Direct (ZTA) series design utilizes this ceramic substrate by applying two metal electrodes evenly placed on both sides of the substrate. When voltage is applied, vibration of the ceramic substrate occurs between the electrodes. The thickness of the ceramic substrate determines the resonant frequency of the resonator.

The (ZTA) series conform to the RoHS directive. Custom parts are available on request. Direct will also produce devices outside these specifications to meet specific customer requirements, please contact our sales for more information. Download complete datasheet Washable Epoxy Coated Ceramic Resonators (ZTA) PDF (383KB).

Benefit Features :
  1. All (ZTA) are epoxy coated and completely washable.
  2. Resistant to damage from impact and vibration.
  3. Tape and reel package are both available.
  4. Excellent temperature stability (±0.3%).
  5. Low cost.
Dimensions (ZTA)
(ZTA8.00MT) Dimensions
(ZTA8.00MT) Dimensions
(ZTALS6.00MG) Dimensions
(ZTALS6.00MG) Dimensions
(ZTAWS) Dimensions
(ZTAWS) Dimensions
(ZTARS) Dimensions
(ZTARS) Dimensions
Technical Characteristics (ZTA)
Frequency Range
Frequency Accuracy
(at 25°C) (%)
Stability in Temperature
(-20°C ~ +80°C) (%)
Operating Temperature
Aging For
Ten Years
ZTA***MG 1.79 ~ 6.00 ± 0.5 ± 0.3 -20 ~ +80 ± 0.3
ZTAWS***MG 1.79 ~ 6.00 ± 0.5 ± 0.3 -20 ~ +80 ± 0.3
ZTALS***MG 3.00 ~ 8.00 ± 0.5 ± 0.3 -20 ~ +80 ± 0.3
ZTARS***MG 3.00 ~ 10.00 ± 0.5 ± 0.3 -20 ~ +80 ± 0.3
ZTA***MT 6.00 ~ 13.00 ± 0.5 ± 0.3 -20 ~ +80 ± 0.3
ZTA***MX 12.00 ~ 60.00 ± 0.5 ± 0.3 -20 ~ +80 ± 0.3
Understanding Oscillation Circuit for MOS IC (ZTA)
MHz Resonator (ZTA) Test Circuit for MOS IC
MHz Resonator (ZTA) Test Circuit for MOS IC
Order Codes (ZTA)
Part Number
P Bulk
TR Taping Reel