The Hy-Q International Group Hy-Q International Australia Home Page About Hy-Q International Our Products and Site Map Search Our Site Contact Hy-Q International Australia top
Welcome to Hy-Q International Australia

Quartz Crystals
Quartz Crystals

Overview

Theory

Order                        

Data Sheets


Home
Site Map

Adobe Acrobat is used extensivly throughout this page - Download your free PDF viewer here!
Documents on this page
require the free Adobe
Acrobat Reader

 

Ordering Through Hole
Quartz Crystals

If you would like all information regarding through hole crystal data in a single PDF please use this link.

The Three Column Code (3CC) Easy Ordering System

Ordering through hole crystals from Hy-Q International Australia could not be easier because all the information is included on this page. To place an order or to receive a quotation, simply contact our sales office with the following seven items of information.

1 2 3 4 5 6 7
Holder Style Overtone Frequency (MHz) Temp. Range Frequency Stability Calibration Load Capacitance
Select from the chart below. The chart below combines the frequency range for each overtone. Information relating to these settings is given in the 3 Column Code (3CC) table.

Please use the above headings to identify the specific parameters of the crystal required.

Example: GJ05E represents: Operating temperature range -10c to +60c, frequency stability 5ppm, calibration tolerance 10ppm and a load capacitance of 30pF.

QC49 3rd O/T 36.25943 G J 05 E
Use the links in the following table to view or download the desired crystal data sheet including their Standard Performance Representation in PDF format. (Recommended)
To view thumbnails of the holder styles only, for each ESR group, use the link in the 'Group' column
 

Holder Styles by ESR groups:

Holder

Frequency Range (MHz)

Group

Style (QC) Fundamental Overtone (determines R1 (ESR))
3rd 5th 7th 9th
A 35 39 61 62 63 69 8 - 30 25 - 90 60 - 150 125 - 175 175 - 200
B

This group is allocated to cold weld products which we no longer offer

C 38 68 16 - 30 40 - 90 70 - 150 125 - 175 N/A
D 41 44 45 46 8 - 30 25 - 90 60 - 150 125 - 175 175 - 200
E 49 50 53 55 56 59 3 - 30 18 - 90 60 - 150 125 - 175 175 - 200
F 48 51 1 - 30 15 - 90 60 - 150 125 - 175 175 - 200
G 52 54 57 4 - 30 18 - 90 60 - 150 125 - 175 175 - 200

Back To Top

3 Column Code Ordering System

The first column consists of two letters (GJ05E) specifying the operating temperature range and frequency stability over that range. The stability is quoted as a frequency tolerance in parts-per-million (ppm) relative to the actual frequency at the reference temperature. For non temperature controlled crystal units, the reference temperature is 25c, otherwise it is the nominal oven temperature. Please also consult the degree of manufacturing difficulty chart below.

The second column is a two digit code (GJ05E) giving the preferred value of the calibration tolerance in ppm. This is the tolerance to which the crystal frequency will be set at the reference temperature.

The third column is a single letter (GJ05E) giving the preferred value of load capacitance in Picofarads (pF).

First Column

Second Column
(calibration tolerance in ppm)
Third Column
(load capacitance in pF)
First Letter
(operating temp. range in c)
Second Letter
(frequency stability in ppm)
A
B
C
D
E
F
G
H
J
K
L
-55 to +105
-40 to +90
-30 to -80
-25 to +75
-20 to +70
-15 to +65
-10 to +60
-5 to +55
0 to +50
+5 to +45
+10 to +40
A
B
C
D
E
F
G
H
J
M
K
L
100
50
30
25
20
15
10
7.5
5
4
3
2
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
50
30
20
15
10
7.5
5
+45 to +65
+35 to +55
+25 to +45
+20 to +40
+15 to +35
+10 to +30
+5 to +25
0 to +20
-5 to +15
-15 to +5
-20 to 0
-25 to -5
-30 to -10
-35 to -15
-40 to -20
-45 to -25
-50 to -30
-55 to -35
-60 to -40
-65 to -45
-70 to -50
-75 to -55
A
B
C
D
E
F
G
H
J
K
L
M
N
P
Q
R
S
T
U
V
W
X
Y
Z
10
15
20
25
30
32
40
45
50
60
70
80
90
100
18
150
series resonant
35
55
65
75
85
95
12

Ovenised crystal codes Stability 0.5 ppm per c over 2c

Code Tempc
TR
TS
TT
TU
TV
TW
TX
TY
TZ
45
50
55
60
65
70
75
80
85

Back To Top

Available First Column Code Combinations
and Degree of Manufacturing Difficulty

Temperature
Range
A
+100
B
+50
C
+30
D
+25
E
+20
F
+15
G
+10
H
+7.5
J
+5
M
+4
K
+3
L
+2
A -55 to +105 1 1 2 2 4 Please consult our sales office Please consult our sales office Please consult our sales office Please consult our sales office Please consult our sales office Please consult our sales office Please consult our sales office
B -40 to +90 1 1 2 2 2 3 4 Please consult our sales office Please consult our sales office Please consult our sales office Please consult our sales office Please consult our sales office
C -30 to +80 1 1 1 2 2 2 3 4 Please consult our sales office Please consult our sales office Please consult our sales office Please consult our sales office
D -25 to +75 1 1 1 1 2 2 2 3 4 Please consult our sales office Please consult our sales office Please consult our sales office
E -20 to +70 1 1 1 1 2 2 2 3 4 Please consult our sales office Please consult our sales office Please consult our sales office
F -20 to +65 1 1 1 1 2 2 2 3 3 4 Please consult our sales office Please consult our sales office
G -10 to +60 1 1 1 1 1 2 2 2 3 3 4 Please consult our sales office
H -5 to +55 1 1 1 1 1 1 2 2 2 3 3 4
J 0 to +50 1 1 1 1 1 1 2 2 2 2 3 4
K +5 to +45 1 1 1 1 1 1 1 1 2 2 2 2
L +10 to +40 1 1 1 1 1 1 1 1 1 1 2 2

Degree of manufacturing difficulty:

1 2 3 4 Please consult our sales office

It is important to note that crystal unit cost increases with the degree of manufacturing difficulty. As shown, the degree of manufacturing difficulty increases rapidly as requirements on operating temperature range (first letter of first column) and frequency tolerance (second letter of first column) are tightened.

Special Requirements

In cases where the Hy-Q 3-Column ordering code is insufficient to describe a particular set of requirements, the following essential data is required for manufacture:

  • Nominal frequency: ...............MHz
  • Overtone order: Fund. or 3rd or 5th or 7th or 9th
  • Holder style: QC____
  • Circuit condition: Series (s) or Load resonant (..........pF load)
  • Calibration tolerance: ..........ppm
  • Operating temperature: ..........c
  • Operating temperature range: .......... to ..........c
  • Tolerance over temperature range: ..........ppm

In addition, the following parameters may need to be specified:

  • Maximum equivalent series resistance (ESR): ..........ohms max.
  • Shunt capacenitance (Co): ..........pF ..........%
  • Motional capacenitance (C1): ..........fF ..........%
  • Motional inductance (L1): ..........mH ..........%
  • Drive level: ..........mW
  • Ageing (per year): ..........ppm max.

Our engineers will be pleased to assist in formulating a specification appropriate for any application and discuss the theoretical and practical limitations of any parameters.

IMPORTANT NOTE
When ordering crystal units with a frequency available in more than one mode, it is essential to specify both the frequency and the mode. For example, 75 MHz falls within the 3rd and 5th overtone orders. When ordering a 75 MHz crystal it is essential to quote the mode, because the parameters of the two types of crystal unit are different. The minimum information required when ordering is:

  • Nominal frequency (MHz)
  • Overtone order (fundamental, 3rd, 5th, 7th, 9th)
  • Holder style
  • 3-Column ordering code or other information
  • Quantity required

 

Back To Top

ESR_Graph.gif (10742 bytes)

Back To Top

To place an order using the above information, or for any enquiry, please contact our sales office.

Home     About Hy-Q International     Site Map     Contact Us