Due to the custom-designed nature of High Frequency Fundamental

(HFF) crystals, Euroquartz produce HFF crystals to customer’s

specifications. There is a short lead time from design to production

for these parts. Contact Euroquartz application engineers to discuss

your requirements.

Frequency range:

Mode:

Holder:

Sealing Method:

Frequency adjustment at 25ºC:

Frequency stability over temp.:

Operating Temperature Range:

Storage Temperature Range:

Shunt Capacitance:

Insulation Resistance:

Drive Level:

Motional Capacitance (C1):

Load Capacitance (CL):

C0/C1 Ratio:

Ageing:

35.0MHz to 160MHz .

AT-Cut Fundamental

UM-1

Resistance weld.

±20ppm (Standard)

±10, ±30, ±50ppm

(Option)

From ±20ppm over

-20° to +70°C

0° ~ +70248 (Standard)

-20° to +70°, -40° to +85°C

(Option)

-55° to +125°C

5pF maximum

500M min. at 100VDC

100 W maximum

2fF to 15fF

18pF (Standard)

Series Resonant or >10pF

Customer specified

±3ppm/year

W

m

General Specification

Custom crystal service

To order

Specify frequency, Style (HFF), stability and operating temperature

range code (table below), circuit condition.

To assist ordering and reordering a unique part number can be

allocated for customer designs.

Outline and Dimensions

•

•

•

Fundamental Frequency 35MHz to 160MHz

Low ESR from 15

Ideal for low-noise oscillators

Ω

HFF CRYSTALS

HIGH-FREQUENCY

FUNDAMENTAL

QUARTZ CRYSTALS

HFF CRYSTALS

HIGH-FREQUENCY

FUNDAMENTAL

QUARTZ CRYSTALS

+44 (0)1460 230000

+44 (0)1460 230001

sales@euroquartz.co.uk

www.euroquartz.co.uk

Telephone:

Fax:

Email:

Web:

GENERAL PRODUCT SPECIFICATION

QUARTZ CRYSTALS

7.8

3.75

3.2

Ø0.35

8.0

12.7 (min.)

Actual Size

Frequency Range

ESR 9

Mode/Cut

35.0MHz to 50.0MHz

15 max.

Fundamental AT

50.0MHz to 100.0MHz

20 max.

Fundamental AT

100.0MHz to 160.0MHz

25 max.

Fundamental AT

Code

Blank

±50ppm

±100ppm

0° to +70°C

A

±50ppm

±100ppm

-20° to +70°C

B

±50ppm

±100ppm

-40° to +85°C

C

±30ppm

±50ppm

0° to +70°C

D

±30ppm

±50ppm

-20° to +70°C

E

±20ppm

±30ppm

0° to +85°C

F

±20ppm

±30ppm

-20° to +70°C

G

±10ppm

±20ppm

-20° to +70°C

Tolerance

@ 25°C

Temperature

Stability

Operating Temp.

Range