CO2520-0.032768-3.3-25-X-T-TR

Oscillator, 32.768 kHz, CMOS, SMD, 2.5mm x 2mm, 3.3 VDC, CO2520 Series

⚠️ Reference pricing provided. In case of supply shortages, we will connect you with our trusted procurement partners to ensure your project's continuity.

Manufacturer: RALTRON
Product type: Standard Oscillators
SVHC: No SVHC (04-Feb-2026)
Frequency Nom: 32.768kHz
Product Range: CO2520 Series
Supply Voltage Nom: 3.3VDC
Frequency Stability + / -: 25ppm
Operating Temperature Max: 85°C
Operating Temperature Min: -40°C
Oscillator Case / Package: SMD, 2.5mm x 2mm
Oscillator Output Compatibility: CMOS

Delivery and price
Units per pack	500
Price	0.572 €
Current stock	1000+
Lead time	30 days

Datasheet

**CLOCK OSCILLATOR** Page 1 of 3 

## **CO2520-0.032768-3.3-25-X-T-TR** 

##  **ELECTRICAL SPECIFICATION** 

**==> picture [450 x 189] intentionally omitted <==**

**----- Start of picture text -----**<br>
GG PARAMETER  SYMBOL  CONDITIONS  VALUE  UNIT<br>GO Nominal Frequency fo  Ta=25°C  0.032768  MHz<br>GO Supply voltage range  VCC ---  3.3  VDC<br>GO Supply current, max  IS Ta=25°C  0.1  mA<br>GO Operating temperature   Ta  ---  -40 ~ +85  C<br>Storage temperature  T(stg) Absolute max  -55 ~ +125  C<br>Inclusive of 25°C Tolerance and Changes due to<br>Frequency Tolerance  f/fo  Operating Temperature, Supply Voltage, Load,  ±25  PPM<br>Aging, Shock and Vibration<br>as ee VOL ee Logic “0” Level, max  0.1 x Vcc  VDC<br>Output Voltage<br>ee VOH Logic “1” Level, min  0.9 x Vcc  eee VDC<br>a Output Load  a ---  CMOS Output  15  ee pF<br>Pin 3 – Oscillation<br>Pin 1: N.C. (Open) or High  (Enabled)<br>Enable / Disable Function  E/D<br>Pin 1: Low  Pin 3 – High Impedance<br>(Disabled)<br>a Symmetry (Duty Cycle) DC  @50% Vdd  45 to 55  %<br>a Rise Time and Fall Time, Max  tr / tf  @10% to 90% Vdd  12  ns<br>**----- End of picture text -----**<br>


##  **MECHANICAL SPECIFICATION** 

**==> picture [196 x 179] intentionally omitted <==**

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PIN  FUNCTIONS<br>MARKING   1-ENABLE/DISABLE<br>AREA   2-GND<br>  3-OUTPUT<br>  4-VCC<br>eo<br>LAND PATTERN<br>rn —<br>BOTTOM VIEW<br>**----- End of picture text -----**<br>


**==> picture [107 x 85] intentionally omitted <==**

**----- Start of picture text -----**<br>
eo<br>**----- End of picture text -----**<br>


NOTE: A capacitor of 0.01 µF between Vcc and Ground is recommended 

RALTRON ELECTRONICS  10400 N.W . 33[r d] Street  Miami, Florida 33172  U.S.A. Telephone:  +1-305-593-6033      Fax: +1-305-594-3973      e-mail: sales@raltron.com      web: http://www.raltron.com 

## **CLOCK OSCILLATOR** 

Page 2 of 3 

## **CO2520-0.032768-3.3-25-X-T-TR** 

##  **REFLOW PROFILE** 

**==> picture [428 x 355] intentionally omitted <==**

**----- Start of picture text -----**<br>
||||||||
|---|---|---|---|---|---|---|
|tP|
|TP|
|Critical Zone|
|Ramp-up|»|TL to TP|
|TL|
|TSMAX|tL|
|Temp.|
|[°C]|
|Ramp-down|
|TSMIN|
|tS Preheat|
|r|a|
|Time [sec]|
|t[25°C] to Peak|
|Reflow profile|
|Temperature Min Preheat|TSMIN|150°C|
|Temperature Max Preheat|TSMAX|200°C|
|Time|(TSMIN to TSMAX)|tS|60-180|sec.|
|Temperature|TL|217°C|
|Peak Temperature|TP|260°C|
|Ramp-up rate|RUP|3°C/sec max.|
|Ramp-down rate|RDOWN|6°C/sec max.|
|Time within 5°C|of Peak Temperature|tP|10|sec.|
|Time|t[25°C]|to Peak Temperature|t[25°C]|to Peak|480|sec.|
|Time|tL|60-150|sec.|

**----- End of picture text -----**<br>


##  **ENVIRONMENTAL** 

**PARAMETER VALUE** MOISTURE SENSITIVITY LEVEL 1 RoHS2 6/6 COMPLIANT & LEAD FREE REACH-SVHC COMPLIANT HALOGEN-FREE COMPLIANT TERMINATION FINISH Au ~~———~~ 

RALTRON ELECTRONICS  10400 N.W . 33[r d] Street  Miami, Florida 33172  U.S.A. Telephone:  +1-305-593-6033      Fax: +1-305-594-3973      e-mail: sales@raltron.com      web: http://www.raltron.com 

## **CLOCK OSCILLATOR** 

Page 3 of 3 

## **CO2520-0.032768-3.3-25-X-T-TR** 

##  **MARKING** 

Rx0.03  3AEyw 

x – Internal Production ID code y – Year code w – Week code 

|**YEAR CODE**|**YEAR CODE**|
|---|---|
|**Year**|**Code**|
|2011|1|
|2012|2|
|2013|3|
|2014|4|
|2015|5|
|2016|6|
|2017|7|
|2018|8|
|2019|9|



|**ALPHA WEEK CODE TABLE**|**ALPHA WEEK CODE TABLE**|**ALPHA WEEK CODE TABLE**|**ALPHA WEEK CODE TABLE**|**ALPHA WEEK CODE TABLE**|**ALPHA WEEK CODE TABLE**|
|---|---|---|---|---|---|
|**Week**|**Code**|**Week**|**Code**|**Week**|**Code**|
|1<br>a<br>2<br>b||19<br>s||37<br>K||
|||20<br>t||38<br>L||
|3<br>c<br>4<br>d||21<br>u||39<br>M||
|||22<br>v||40<br>N||
|5<br>e<br>6<br>f||23<br>w||41<br>O||
|||24<br>x||42<br>P||
|7<br>g<br>8<br>h||25<br>y||43<br>Q||
|||26<br>z||44<br>R||
|9<br>i<br>10<br>j||27<br>A||45<br>S||
|||28<br>B||46<br>T||
|11<br>k<br>12<br>l||29<br>C||47<br>U||
|||30<br>D||48<br>V||
|13<br>m<br>14<br>n||31<br>E||49<br>W||
|||32<br>F||50<br>X||
|15<br>o<br>16<br>p||33<br>G||51<br>Y||
|||34<br>H||52<br>Z||
|17<br>q<br>18<br>r||35<br>I||||
|||36<br>J||||



##  **APPROVAL** 

**RALTRON** DRAWN BY: KJackson, June 23, 2015 APPROVED BY: KJackson, June 23, 2015 ~~—~~ REVISION: A, Initial Release 

RALTRON ELECTRONICS  10400 N.W . 33[r d] Street  Miami, Florida 33172  U.S.A. Telephone:  +1-305-593-6033      Fax: +1-305-594-3973      e-mail: sales@raltron.com      web: http://www.raltron.com

Updated at April 28, 2026

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