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SMD Crystal Oscillators POSC2520K

Features
Supply Voltage: 1.8V/2.5V/2.8V/3.OV/3.3V/5.0V.3-state function
Low current consumption CMOS Level Output

High speed start-up: 2ms max. until frequency output after power [Standard] Frequency tolerance: ±35x 10-6 and below (-40~+85°C, includes frequency tolerance at room temperature

Frequency tolerance at room temperature: ±11x10-6 and below (Accuracy ±30 sec/month)

AEC-Q 100 compliant


Applications

Timer module, Industrial measuring equipment

Consumer Product, Clock source for RTC automotive multimedia device 

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2520mm 32.768KHz SMD Oscillator

Crystals and Oscillators at 32.768kHz are primarily used in real time clock applications. The industry has standardized on 32.768 kHz as it divides down to 1Hz which can be easily translated to provide a clock signal with a 1 second time resolution, and is the best compromise between low frequency which results in low current consumption, and convenient to manufacture. We offer both Tuning fork crystals as well as AT-cut oscillators are 32.768KHz in 2520mm size as for your design. 


Electrical Parameters

No. Item Symb. Electrical Specification Remark
Min. Type Max. Units
1 Nominal Frequency F0 24 MHz  
2 Frequency Stability   -50   50 ppm All condition*
3 Operating Temperature Range TOPR -20   70 ℃  
4 Storage Temperature TSTG -55   125 ℃  
5 Power supply Voltage VDD 1.8 3.3   V  
6 Aging Per Year Fa -5   5 ppm First Year
7 Supply current Ic     15 mA  
8 Output symmetry Sym 40   60 %  
9 Rise time Tr     2 ns 10%~90%VDD
10 Fall time Tf     2 ns 90%~10%VDD
11 Output voltage VOH 90%     VDD  
    VOL     10% VDD  
12 Output load HCMOS LOAD       15 PF  
13 Startup time       3 mS  
14 Pin 1, tri-state function pin 1=H or open......output active at pin 3
pin 1=L......high impedance at pin 3
15 Package type POSC2520K

Dimensions

SMD Crystal Units Oscillator 2520K





























Dimensions


Reflow

Profiles Feature Pb-Free Assembly
Average Ramp-up Rate (Ts max to Tp) 3℃/second max.
Preheat
■  Temperature Min (Ts min)
■  Temperature Max (Ts max)
■  Time (ts min to ts max) 		125℃
200℃
60~180 seconds
Time maintained above
■  Temperature (TL)
■  Time (tL) 		217℃
60~150 seconds
Peak/Classification Temperature (Tp) 260℃
Time within 5℃ of actual Peak
Temperature (tp) 		20~40 seconds
Ramp-down rate 6℃/second max.
Time 25℃ to Peak Temperature 8 minutes max.
Suggest reflow times 3 Times max


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