UM-1 / 5 / 4     SMD Crystal Units

Features

• High frequency accuracy (stability & Aging)
• Wide frequency range
• Reflow solderable and available on T&R (1'000 pcs)

Specification

Typ

UM-1 MJ     UM-4 MJ     UM-5 MJ

Frequency range

8 ~ 80 MHz (fundamental)
30 ~ 150 MHz  (3^rd OT)
60 ~ 250 MHz  (5^th OT)

Vibration mode

AT cut  fundamental,  3^rd,  5^th OT

Frequency tolerance @ +25°C

± 5 ~ ± 20 ppm

Freq. stability (Ref. @ +25°C)

± 5 ~ ± 20 ppm
± 5 ppm (-10°~+60°C)            ± 20 ppm (-40° ~ +85C°)

Aging

< ± 1 ppm  1^st year

Operating temperature range

- 20  ~  + 70°C   standard
- 40  ~  + 85°C on request

Load capacitance

Series resonance  or  Parallel resonance (CL < 32  pF)

Frequency tolerance (25±2°C)

± 5 ~ ± 20 ppm

Equivalent series resistance

30 (fundamental)
50 (3^rd OT)     80 (5^th OT)

Additional specs on request