QT49-18.432MABK-B

$0.26

Description：HC49 XTAL 30ppm 30ppm 20pF
Series：QT49
Mfr：QST
Package：Bulk

SKU:88406b26979e Category: Crystals Brand: QST

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Product introduction

Product Detailed Parameters

Description：HC49 XTAL 30ppm 30ppm 20pF
Series：QT49
Mfr：QST
Package：Bulk
Type：MHz Crystal
Frequency：18.432 MHz
Frequency Stability：-
Frequency Tolerance：-
Load Capacitance：-
ESR (Equivalent Series Resistance)：-
Operating Mode：Fundamental
Operating Temperature：-
Ratings：-
Mounting Type：Through Hole
Package / Case：HC-49S
Size / Dimension：0.453" L x 0.197" W (11.50mm x 5.00mm)
Height - Seated (Max)：0.145" (3.68mm)

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QT49-18.432MABK-B

Overview

The QT49-18.432MABK-B is a quartz crystal resonator manufactured by QST, operating at a standard frequency of 18.432 MHz. It utilizes an HC-49/US package with through-hole mounting and features two pins. The component has a load capacitance of 20 pF and a series resistance of 30 Ohms. Frequency tolerance is specified at ±50 ppm, while frequency stability is rated at ±30 ppm. The device operates within a temperature range of -40°C to +85°C.

Feature Summary

HC-49/US metal can package design for robust mechanical protection
Through-hole mounting configuration compatible with standard PCB layouts
Compliant with RoHS standards ensuring lead-free construction

Applications

Television sets
Set-top boxes
Cable modems
Microprocessor systems
Computer peripherals

Procurement Notes

Verify the manufacturer designation carefully, as the QT49 series is produced by multiple vendors including TXC Corporation and QANTEK. Confirm that the specific part number QT49-18.432MABK-B corresponds to QST specifications rather than generic equivalents. Ensure the datasheet matches the required electrical parameters such as the 30 Ohm series resistance and 20 pF load capacitance before finalizing procurement orders.

Selection Notes

Select this component when a 18.432 MHz reference signal is required for digital logic or communication interfaces. The HC-49/US package is suitable for applications requiring durable through-hole integration. Consider the ±50 ppm tolerance if high precision timing is not critical. Verify thermal stability requirements against the -40°C to +85°C operational range for environmental compatibility.

Part Context

This crystal belongs to the QT49 series, a widely used family of through-hole quartz resonators. The HC-49/US form factor is a standard industry size for general-purpose timing applications. Variations in suffixes typically denote differences in tolerance, packaging, or manufacturer-specific attributes within the same frequency class.