# 2520H SMX-4 RF Clock Series Crystal

## Product Overview
· Miniature SMD crystal
· Highly reliable seam seal 4-pad ceramic package
· Low aging crystal designed for RF applications
· RoHS & REACH compliant

## Specifications
· Frequency Range: 12.00MHz ~ 62.50MHz (Fundamental)
· Frequency Tolerance: ±10.0 ppm
· Frequency Stability: ±10.0 ppm over -30°C ~ +85°C
· Frequency Aging: ±1.0 ppm at 25°C, 1 year
· Operating Temperature Range: -40°C ~ +85°C
· Storage Temperature Range: -55°C ~ +125°C
· Load Capacitance (CL): 8.0pF ~ 16.0pF
· Equivalent Series Resistance (ESR):
- 12.0 ~ 15.999MHz: 200Ω max
- 16.0 ~ 19.999MHz: 100Ω max
- 20.0 ~ 25.999MHz: 80Ω max
- 26.0 ~ 62.500MHz: 50Ω max
· Shunt Capacitance (C0): 3.0pF max
· Drive Level (DL): 100μW max (50μW typical)
· Moisture Sensitivity Level (MSL): 1 (unlimited)
· Insulation Resistance (IR): 500MΩ min at 300V DC

## Part Number Generation
· Structure: CW [Frequency] -RF- [Series Code] [Temp Code] [Tolerance Code] [Aging Code] -PF
· Frequency: First 4 characters of frequency in Hz (e.g., 27MHz = 2700). For frequencies ≥ 100MHz, use the first 5 characters.
· Series Code: 8=GO, 9=JO, 10=KO, 11=MO, 12=OO, 14=PO, 16=RO
· Temp Code: -40°C ~ +85°C = M
· Tolerance Code: ±10 ppm = E, ±10 ppm = F, ±1 ppm = 1
· Aging Code: Use remaining code characters
· RoHS: -PF

## Dimensions
· Overall: 2.5 x 2.0 mm
· Thickness: 0.65 max, 0.80-0.90, 0.70-0.60, 0.40-0.90, 0.85-0.50

## Reflow Profile
· Preheat: 180 ± 10°C, 90~120 sec max
· Peak Temperature: 260 ± 5°C, 10 sec max
· Soak Temperature: 220 ± 10°C, 30~40 sec max