E1SFA18-20.000M TR

$0.20

Description：CRYSTALS 20.000MHZ 30PPM 18PF PA
Series：E1S
Mfr：Ecliptek
Package：Tape & Reel (TR)

SKU:9a9eddb6e306 Category: Crystals Brand: Ecliptek

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Product introduction

E1SFA18-20.000M TR is listed in the Crystals range at ChipApex. The manufacturer field lists Ecliptek. Its product description is CRYSTALS 20.000MHZ 30PPM 18PF PA. Review the specifications below when checking this part for your BOM.

Crystals specifications for E1SFA18-20.000M TR

Description：CRYSTALS 20.000MHZ 30PPM 18PF PA
Series：E1S
Mfr：Ecliptek
Package：Tape & Reel (TR)
Type：MHz Crystal
Frequency：20 MHz
Frequency Stability：±50ppm
Frequency Tolerance：±30ppm
Load Capacitance：18pF
ESR (Equivalent Series Resistance)：50 Ohms
Operating Mode：Fundamental
Operating Temperature：-40°C ~ 85°C
Ratings：-
Mounting Type：Surface Mount
Package / Case：HC-49/US
Size / Dimension：0.457" L x 0.191" W (11.60mm x 4.85mm)
Height - Seated (Max)：0.126" (3.20mm)

Crystals datasheet and documents for E1SFA18-20.000M TR

E1SFA18-20.000M TR

Crystals Overview

The E1SFA18-20.000M TR is a quartz crystal resonator manufactured by Ecliptek, operating at a nominal frequency of 20.000 MHz. It features a parallel fundamental mode of operation with an AT-cut configuration and a load capacitance of 18 pF. The component exhibits a frequency tolerance of ±30 ppm at 25°C and aging stability of ±5 ppm per year maximum. It utilizes a surface-mount package with resistance weld sealing, measuring 13.3 mm in length, 4.85 mm in width, and 3.2 mm in height. The equivalent series resistance is 40 ohms maximum, with a drive level of 1 mWatt maximum. It supports a storage temperature range from -40°C to +85°C.

Crystals Feature Summary

AT-cut fundamental resonance for stable oscillation
Resistance welded metal seal for environmental protection
Surface mount HC-49/US short form factor

Crystals Applications

Smart home main control boards
TWS earphone Bluetooth chips
Remote control clock circuits

Crystals Procurement Notes

Verify the specific frequency tolerance and temperature range against the official datasheet, as variations exist within the E1S family. Confirm the package dimensions match the design footprint, noting the 13.3mm length. Ensure the drive level requirements of the target circuit are compatible with the 1mWatt maximum specification. Check RoHS compliance status if required by project regulations.

Crystals Selection Notes

Select this component when a robust, surface-mount crystal is needed for 20 MHz applications requiring moderate stability. The HC-49/US short form factor allows for compact PCB layouts while maintaining reliability through resistance welding. Consider the ±30 ppm tolerance and 18 pF load capacitance for oscillator circuit design compatibility.

Crystals Part Context

This part belongs to the E1S series of quartz crystal resonators from Ecliptek. The series is characterized by low cost and high reliability, utilizing resistance-welded seals. The E1SFA variant specifically denotes the 20 MHz frequency option within the 18 pF load capacitance group of the HC-49/US short package line.