QT49S-36.000MEEJ-T

$0.29

Description：HC49 SMD MHZ QUARTZ XTAL / META
Series：QT49S
Mfr：QST
Package：Tape & Reel (TR)

SKU:38806e5f1ea9 Category: Crystals Brand: QST

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Product introduction

Product Detailed Parameters

Description：HC49 SMD MHZ QUARTZ XTAL / META
Series：QT49S
Mfr：QST
Package：Tape & Reel (TR)
Type：MHz Crystal
Frequency：36 MHz
Frequency Stability：±10ppm
Frequency Tolerance：±10ppm
Load Capacitance：18pF
ESR (Equivalent Series Resistance)：80 Ohms
Operating Mode：3rd Overtone
Operating Temperature：-20°C ~ 70°C
Ratings：-
Mounting Type：Surface Mount
Package / Case：HC-49/US
Size / Dimension：0.449" L x 0.189" W (11.40mm x 4.80mm)
Height - Seated (Max)：-

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QT49S-36.000MEEJ-T

Overview

The QT49S-36.000MEEJ-T is a surface-mount quartz crystal resonator manufactured by QST, operating at a fundamental frequency of 36 MHz. It features a frequency tolerance of ±10 ppm at 25°C and a frequency stability of ±10 ppm over the temperature range of -20°C to +70°C. The component utilizes an HC-49/US equivalent SMD package with dimensions of 11.40mm x 4.80mm x 3.8mm. It has a load capacitance of 18 pF and a maximum series resistance of 80 Ohms. The device is designed for lead-free compliance and RoHS standards.

Feature Summary

Surface-mount construction in a compact HC-49/US form factor
High frequency stability of ±10 ppm across specified temperature range
Lead-free and RoHS compliant manufacturing process

Applications

Microprocessor clock sources
Computer peripheral interfaces
Set-top box timing circuits
Cable modem synchronization

Procurement Notes

Verify the specific ordering suffix against official QST documentation to confirm exact frequency tolerance and stability ratings. Ensure the selected variant matches the required load capacitance and package dimensions for the target PCB layout. Confirm RoHS compliance status through current manufacturer declarations prior to integration.

Selection Notes

Select this component when a 36 MHz surface-mount crystal with ±10 ppm stability is required. Consider the 18 pF load capacitance requirement for circuit design compatibility. Evaluate the 80 Ohm maximum series resistance against oscillator circuit drive level constraints. Verify thermal performance requirements against the -20°C to +70°C operational range.

Part Context

This part belongs to the QT49S series of surface-mount crystals from QST. The series offers various frequencies and tolerance options, including ±30 ppm and ±50 ppm variants. The QT49S line is designed for general-purpose timing applications requiring reliable SMD mounting solutions.

Replacement Considerations

Direct substitutes include other QT49S-36.000M variants with different tolerance suffixes (e.g., MAHJ for ±30 ppm). Cross-reference with other manufacturers offering HC-49/US SMD packages at 36 MHz with matching 18 pF load capacitance and similar electrical characteristics.

How to buy

Online and offline orders are supported. If the item is available for online purchase, you can place it in the cart; for wholesale pricing, please contact our product manager for a quote.

Payment Method

Payment methods: T/T, WeChat Pay, credit cards, Google Pay, Apple Pay . Buyer covers shipping, fees, duties, and taxes; contact our product manager if you need a contract/procurement process.

Delivery time

In-stock items usually ship within 24 hours. Otherwise, shipment is arranged 1 to 2 days after the items arrive at our warehouse. Timing depends on destination and shipping method.

Freight calculation

Freight cost depends on destination, package size, and weight . We offer shipping options via DHL, FedEx, UPS, and TNT , and can ship using your freight account upon request.

Mode of Transportation

We ship via DHL, FedEx, UPS, and TNT. If you prefer a specific logistics provider, we can ship using your designated carrier.

Return and Refund

Returns are accepted within 60 days of invoice with RMA approval. Items must be resalable; original invoice and test report are required. No returns for customer errors.