ILSI America products

- 4 Pad Metal Package Quartz Crystal, 4.8 mm x 12.5 mm

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SMD Package
Compatible with Leadfree Processing
Grounded package for low EMI

Fibre Channel
Server & Storage
Sonet /SDH
802.11 / Wifi
T1/E1, T3/E3
System Clock
Bluetooth

Frequency	3.200 MHz to 100 MHz
Aging	±5 ppm Max. / Year Standard
Crystal Cut	AT Cut Standard
Drive Level	1 mW Max.
ESR (Equivalent Series Resistance)
3.2 MHz - 3.49 MHz	300 Ω Max.
3.5 MHz - 3.99 MHz	200 Ω Max.
4.0 MHz - 4.99 MHz	150 Ω Max.
5.0 MHz - 5.99 MHz	120 Ω Max.
6.0 MHz - 6.99 MHz	100 Ω Max.
7.0 MHz - 8.9 MHz	80 Ω Max.
9.0 MHz - 12.9 MHz	60 Ω Max.
13 MHz - 19.9 MHz	40 Ω Max.
20 MHz - 36 MHz	30 Ω Max.
27 MHz - 100 MHz (3rd O.T.)	100 Ω Max.
Frequency Stability over Temperature	±50 ppm Standard (see Part Number Guide for more options)
Frequency Tolerance @ 25° C	±30 ppm Standard (see Part Number Guide for more options)
Load Capacitance	18 pF Standard (see Part Number Guide for more options)
Operating Temperature	0° C to +70° C Standard (see Part Number Guide for more options)
Shunt Capacitance (C0)	7 pF Max.
Storage Temperature	-40° C to +85° C Standard

- Sample Part Number: HC49USM4 - FB1F18 - 20.000 MHz

Package	Tolerance (ppm) at Room Temperature	Stability (ppm) over Operating Temperature	Operating Temperature Range	Mode (overtone)	Load Capacitance (pF)	Frequency
HC49USM4 - (5.2 mm H)	B = ±50 ppm	B = ±50 ppm	0 = 0°C to +50°C	F = Fundamental	18	20.000 MHz
HC49USM6 - (4.5 mm H)	F = ±30 ppm	F = ±30 ppm	1 = 0°C to +70°C	3 = 3rd overtone
HC49USM8 - (5.2 mm H)	G = ±25 ppm	G = ±25 ppm	2 = -10°C to +60°C
HC49USM9 - (4.5 mm H)	H = ±20 ppm	H = ±20 ppm	3 = -20°C to +70°C
	I = ±15 ppm	I = ±15 ppm**	5 = -40°C to +85°C
	J = ±10 ppm*	J = ±10 ppm**	9 = -10°C to +50°C

* Not available at all frequencies
** Not available for all temperature ranges.