O

CR

YST

ALS

37

ADX26T

SEE PAGE 33 FOR PART NUMBERING GUIDE

Quartz

ADX26T Series

Thru Hole

XTAL

OSC

VCXO

VCO

TCXO

VCTCXO

FLTR

RES

IND

FEATURES

• High Frequency Crystal in 2mm x 6mm
• Excellent Shock Resistance
• Excellent Environmental Characteristics

• Space Savings
• Formed Leads for SMT Application (-M)
• Applications, A/V Equipment, Communication Equipment,

Measuring Instruments

UNIT DIMENSION (unit: mm)

STANDARD SPECIFICATIONS

Package Type

ADX26T

Type

2 x 6 32.768 KHz Tuning Fork

Frequency Tolerance

#

f/F

±20 ppm 

Load Capacitance

CL

12.5 pF

Equivalent Series Resistance 

Rs

30K 

Ω

max.

Oscillation Frequency

F

32.768 KHz

Quality Factor

Q

50K min.

Shunt Capacitance

Co

1.6 pF

Shock Resistance

#

f/F

±3 ppm

Turnover Temperature

Tt

25ºC ±5ºC

Temperature Coefficient

β

-0.035 ±0.005 ppm / ºC2

Capacitance Ratio

γ

520, Typical

Drive Level

P

1 µW max.

Aging 1st Year

#

f/F

±3 ppm max.

Insulation Resistance

IR

500M 

Ω

min. at 100V DC

Operating Temperature Range

To

-10ºC to +60ºC

O

CR

YST

ALS

33

Quartz Part Numbering Guide

ADX Series

Thru Hole

XTAL

OSC

VCXO

VCO

TCXO

VCTCXO

FLTR

RES

IND

UM-1 ADXUM1 pg34
UM-2 ADXUM2 pg34
UM-5 ADXUM5 pg34
HC36/U ADX36 pg34

HC42/U    ADX42 pg34
HC43/U    ADX43 pg34
HC47/U    ADX47 pg34
HC48/U    ADX48 pg34

HC49/U   ADX49 pg34

HC49/S    ADX49S pg35

HC49/SS   ADX49SS pg36
HC49/SS   ADX49SS1 pg36

HC49/T    ADX49T pg36
HC50/U    ADX50 pg36

HC50/T    ADX50T pg36

±100ppm

A

±50ppm

B

±45ppm

C

±40ppm

D

±35ppm

E

±30ppm

F

±25ppm

G

±20ppm

H

±15ppm

I

±10ppm

J

±5ppm

K

Fundamental

F

3rd Overtone

3

5th Overtone

5

7th Overtone

7

9th Overtone

9

Third Lead

L

Insulator Tab

I

Tape & Reel

T

Vinyl Sleeving

V

Package Type

Frequency Tolerance 

@ 25ºC

Frequency Stability

Over Temperature

Operating 

Temperature Range

Operating Mode

Load Capacitance

Options

MHz

M

KHz

K

Frequency

0ºC to +70ºC

1

-10ºC to +60ºC

2

-20ºC to +70ºC

3

-40ºC to +75ºC

4

-40ºC to +85ºC

5

-40ºC to +90ºC

6

0ºC to +55ºC

7

-40ºC to +125ºC

8

±100 ppm

P

±50 ppm

Q

±45 ppm

R

±40 ppm

S

±35 ppm

T

±30 ppm

U

±25 ppm

V

±20 ppm

W

±15 ppm

X

±10 ppm

Y

±5 ppm

Z

6 pF

6

10 pF

10

12 pF

12

18 pF

18

20 pF

20

22 pF

22

30 pF

30

32 pF

32

50 pF

50

Series

S

       

❑     

- 

❑

 M  - A P 1 F 18 I

PACKAGE TYPE
FREQUENCY
FREQUENCY TOLERANCE @ 25ºC

OPTIONS
LOAD CAPACITANCE
OPERATING MODE
OPERATING TEMPERATURE RANGE
FREQUENCY STABILITY
OVER TEMPERATURE

EXAMPLE

Frequency

ADX26T     pg37
ADX38T     pg38

Package Type

Frequency Tolerance
           @ 25 C

ADX309     pg39
ADX310     pg39

±100ppm          A
±50ppm            B
±45ppm            C
±40ppm            D

PACKAGE TYPE

FREQUECY TOLERANCE @ 25 C

FREQUENCY

±35ppm            E
±30ppm            F
±25ppm            G
±20ppm            H

±15ppm            I
±10ppm            J
±5ppm              K

Load Capacitance

6pF                     6               7pF                     7                 12.5pF              12.5 
 

MHz                   M                 KHz                   K      

OPTION

Option

LOAD CAPACITANCE

Bulk              Blank              Tape & Reel       T

H   12.5

Revised 07/17/02