TWC912 Series

RoHS & REACH compliant

Vacuum sealed miniature ceramic package for excellent stability

Low power consumption

                                   Parameters                                                                                             Specification                                                                 Remarks

 Frequency 

F_nom

 32.768kHz

 

 Frequency tolerance

F_tol

±10ppm, ±20ppm,  ±50ppm,  ±100ppm

 At  25°C ± 3°C

 Operating temperature range 

T_use

 ‐40°C ~ +85°C

 Storage temperature 

T_stg

 ‐55°C ~ +125°C

 Temperature coefficient

K

‐0.03±0.01 ppm/°C²

 Turnover temperature

Ti

 25°C ± 5°C

 Load capacitance

CL

7pF, 9pF, 12.5pF

 Equivalent series resistance 

ESR

90KΩ max

 For 50KΩ max ‐ please enquire

 Motional capacitance

C1

6.5fF typical

 Shunt capacitance

C0

1.3pF typical

 Drive level

DL

0.5μW max

 Frequency aging

F_age

±5.0ppm max

 First year

 Insulation resistance

IR

500MΩ min

 At DC100V ± 15V

2.0 x 1.2mm Watch crystal

Dimensions (mm)

Part number generation

SAB

00003

G

I

H

D

‐PF

ACT

Series

Code

Frequency

(KHz)

 Frequency Tolerance 

(±ppm)

 Operating 

Temperature 

Range            

(°C)

  Load capacitance          

(CL)

Packaging             

(Tape & Reel)

RoHS

SAB

32.768kHz = 00003

±10 = C

±20 = G

±50 = J

±100 = P

‐40 ~ +85 = I

  7.0pF = M

  9.0pF = K

12.5pF = H

Loose/Sample  = L      

3000pcs = D        

RoHS = ‐pF

Note: It is important to suffix the above part number with full frequency required to give a completed part number as illustrated below.

Full Example Part Number : SAB00003GIHD‐PF (32.768MHz)

Frequency stability vs temperature

‐190

‐180

‐170

‐160

‐150

‐140

‐130

‐120

‐110

‐100

‐90

‐80

‐70

‐60

‐50

‐40

‐30

‐20

‐10

0

10

‐40

‐30

‐20

‐10

0

102030405060

708090

Temperature °C

X‐Y cut :  Frequency stability v temperature

2.0±0.1

0.5

0.5

0.8

0.6

0.6

0.8

1.4

Land 

Pattern

Internal Connection

ACT (A wholly owned Acal BFi Company)

+44 (0) 118 978 8878|sales@act.co.uk|www.act.co.uk

ISO9001 Registered 

Specifications subject to change without notification