4 MHz Quartz Crystal Unit HELE XSA004000DK1HA-OX SMD-49 Holder Type Frequency Stability /-20 ppm

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Product Description

Product Overview

This Quartz Crystal Unit is designed for reliable oscillation at a fundamental frequency of 4.000000 MHz. It features a SMD-49 holder type and is engineered to maintain stable performance across a wide operating temperature range of -40 to +85 . With tight frequency tolerance and low aging rates, this unit is suitable for applications requiring precise timing and stable frequency output.

Product Attributes

Brand: HARMONY ELECTRONICS CORP.
Marking Method: MARK : H FREQ XY (X: Alphabet For Month, Y : Digit For Year)

Technical Specifications

Specification	Value	Unit	Condition
Frequency	4.000000	MHz
Holder Type	SMD-49
Frequency Tolerance	+/- 20	ppm	At 25 +/- 3
Equivalent Resistance	100	ohms Max.	Series
Storage Temperature Range	-40	To +85
Operation Temperature Range	-40	To +85
Temperature Drift	+/-50	ppm	-40 To +85
Loading Capacitance (CL)	20.0	pF
Drive Level	50	uW	(300 uW Max)
Shunt Capacitance	7.0	pF Max.
Insulation Resistance	More Than 500	M Ohms	at DC 100V
Mode Of Oscillation	Fundamental
Circuit Measurement	Measured in S&A 250B,HP/E5100A
Shocking Test Variation (Frequency)	less than +/- 5 10^-6		Dropping from 50cm height 3 times on firm wood
Shocking Test Variation (Resistance)	less than +/- 15 % or 2 ohms max.		Dropping from 50cm height 3 times on firm wood
Aging	Less than +/-5	ppm / Year
Sealing Test	No air bubble are appeared with in 1 atm alcohol for Three minutes.
Dimensions (mm) - A	10.15	Max
Dimensions (mm) - B	11.00	+/-0.2
Dimensions (mm) - C	12.10	-0.1/+0.3
Dimensions (mm) - D	4.8	Max
Dimensions (mm) - H	4.9	+/-0.2
Dimensions (mm) - F	0.8	+/-0.1
Dimensions (mm) - G	3.75	Max
Dimensions (mm) - K	3.8	Max
Dimensions (mm) - t	0.25	+/-0.02
Dimensions (mm) - E	4.5	Max