# HC-49U QUARTZ CRYSTAL

## Product Description

Standard resistance weld type quartz crystals. Available with options including extended temperature range, pullability, mylar spacer, vinyl sleeve, third ground lead, and radial Tape and Reel (1,000 pcs).

## Features

️· Cost effective
️· Excellent aging
️· Wide frequency range
️· Tight tolerances
️· Excellent reliability
️· “AT” cut crystal

## Operating Conditions/Electrical Characteristics

️· Frequency Range: 1.800 – 100.000 MHz
️· Frequency Tolerance: -30 to +30 PPM @ 25°C
️· Frequency Stability: -50 to +50 PPM (-10°C to +70°C)
️· Operating Temperature: -10°C to +70°C
️· Storage Temperature: -30°C to +85°C
️· Load Capacitance: Customer Specified (10.0 Series pF)
️· Drive Level: 1.800 – 3.000 MHz (2.0 mW), 3.000 – 100.000 MHz (1.0 mW)
️· Aging: -5.0 to +5.0 PPM (first year @ 25°C)

## Equivalent Series Resistance / Mode of Oscillation (Example Values)

Frequency Range (MHz)	Mode	Max ESR (Ω)
1.800 – 1.999	Fundamental	750
2.000 – 2.399	Fundamental	500
2.400 – 2.999	Fundamental	300
3.000 – 3.199	Fundamental	200

## Part Numbering

ECS – Frequency – Load Capacitance – Package Type (example: ECS-160-20-1)

## Package Dimensions (mm)

️· 4.88 ± 0.020
️· 4.65 Max.
️· 0.43
️· 11.35 Max.
️· 12.7 Min.
️· 13.46 Max.