UM1 / UM4 / UM5


Product Features:

Low Cost

RoHS Compliant

Compatible with Leadfree Processing

Applications:

Fibre Channel

Server and Storage

Sonet /SDH

802.11 / Wifi

T1/E1, T3/E3

System Clock

Frequency 7 MHz  to  160 MHz
Aging ± 5 ppm Max. /Year Standard
Crystal Cut AT Cut Standard
Drive Level 1 mW Max.
ESR (Equivalent Series Resistance)
7.0 MHz – 9.9 MHz 100 Ω Max.
10.0 MHz – 14.9 MHz 60 Ω Max.
15.0 MHz – 29.9 MHz 30 Ω Max.
30 MHz – 36 MHz 20 Ω Max.
30 MHz – 49.9 MHz (3rd O.T.) 70 Ω Max.
50 MHz -100 MHz (3rd O.T.) 50 Ω Max.
75 MHz -160 MHz (5th O.T.) 100 Ω Max.
Frequency Stability over Temperature ± 50 ppm Standard (see Part Number Guide for more options)
Frequency Tolerance @ 25° C ± 30ppm 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

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Part Number Guide

– Sample Part Number: UM1 – FB1F18 – 20.000 MHz

Package Tolerance (ppm) at Room Temperature Stability (ppm) over Operating Temperature Operating Temperature Range Mode (overtone) Load Capacitance (pF) Frequency
UM1 – (8.0 mm H) J =±10 ppm** B = ± 50 0 = 0°C to +50°C F = Fundamental 18 pF Standard or Specify 20.000 MHz
UM4 – (4.7 mm H) I =±15 ppm** F = ± 30 1 = 0°C to +70°C 3 = 3 rd Overtone
UM5 – (6.0 mm H) H =±20 ppm G = ± 25 2 = -10°C to + 60°C 5 = 5th Overtone
G =±25 ppm H = ± 20 3 = -20° C to +70°C
F = ±30 ppm I = ± 15 ** 5 = -40°C to +85°C
B = ±50 ppm J = ± 10 ** 9 = -10°C to +50°C

 

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