Crystals in UM-4 and UM-5 cases

Typical application
Microcomputers, audio-/video-applications, wireless phones, communication device

Features
Cases UM-4 and -5 series are highly reliable,
hermetic sealing by resistance-weld sealing
Crystals can be supplied in slim cases, see table dimensions at bottom of page.

Assembly, taping
Cases UM-4 and -5 series are through hole types, but can by shaped for SMD. Crystals in SMD modification can by deliver in tapes wound on reels, suitable for automatic assembly.

Typical specifications 

Type	UM-4, UM-5
Overtone	1.	3.	5.
Frequency range	11-45MHz	25-100MHz	75-180MHz
Freq. adjustment tolerance at 25 °C	±5, ±7, ±10, ±15, ±20, ±50 x 10-6
Frequency stability	see table 1
Equivalent series resistance	see table 2
Aging	±1, ±2, ±3 ppm/year
Storage temperature range	-40 ... +90 °C
Load capacitance	series resonance, CL= 5 ... 50 pF
Drive level	10 - 1000 µW

Differences from standard values and other parameters can be consulted.


Frequency stability in temperature ranges (table 1)

Temperature range [°C]

Frequency stability [ppm]

± 2

± 3

± 4

± 5

± 7

± 10

± 15

± 20

± 25

± 30

± 40

± 50

+15 ... +35

+10 ... +40

+5 ... +45

0 ... +50

-5 ... +55

-10 ... +60

-15 ... +65

-20 ... +70

-25 ... +75

-30 ... +80

-40 ... +90

-55 ... +105

Equivalent series resistance (ESR_max) (table 2)

Overtone	Frequency [MHz]
	11		25		32		45		75		100		120		160		180
1.		20 Ω		15 Ω
3.				60 Ω		40 Ω
5.										60 Ω				80 Ω		100 Ω