QT252S-40.000MDIV-T

$0.51

Description：2.5X2.0 SEAM SEAL MHZ QUARTZ XTA
Series：QT252S
Mfr：QST
Package：Tape & Reel (TR)

SKU:fc2b374b0264 Category: Crystals Brand: QST

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Product introduction

Product Detailed Parameters

Description：2.5X2.0 SEAM SEAL MHZ QUARTZ XTA
Series：QT252S
Mfr：QST
Package：Tape & Reel (TR)
Type：MHz Crystal
Frequency：40 MHz
Frequency Stability：±20ppm
Frequency Tolerance：±20ppm
Load Capacitance：8pF
ESR (Equivalent Series Resistance)：60 Ohms
Operating Mode：Fundamental
Operating Temperature：-40°C ~ 85°C
Ratings：-
Mounting Type：Surface Mount
Package / Case：4-SMD, No Lead
Size / Dimension：0.098" L x 0.079" W (2.50mm x 2.00mm)
Height - Seated (Max)：0.022" (0.55mm)

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QT252S-40.000MDIV-T

Overview

The QT252S-40.000MDIV-T is a quartz crystal oscillator manufactured by QST Products, LLC. It operates at a nominal frequency of 40.000 MHz and utilizes a 2.5x2.0 mm seam seal ceramic package with four surface-mount pads. The component provides a frequency stability of ±20 ppm at 25°C and ±20 ppm across the industrial temperature range of -40°C to +85°C. It requires a load capacitance of 10 pF for proper circuit integration.

Feature Summary

Seam seal ceramic construction for environmental protection
Industrial temperature range operation from -40°C to +85°C
High frequency stability of ±20 ppm
Compact 2.5x2.0 mm surface mount footprint

Applications

Embedded communication systems
Microcontroller clock sources
Industrial control circuits

Procurement Notes

Verify the manufacturer designation carefully, as this part number appears in listings associated with both QST Products, LLC and TXC Corporation. Confirm the specific datasheet version and parameter sheet provided by the supplier matches the required ±20 ppm stability and 10 pF load capacitance specifications before finalizing procurement decisions.

Selection Notes

Select this component when a compact 2.5x2.0 mm quartz crystal is required for 40 MHz applications. Ensure the target circuit design supports a 10 pF load capacitance. Verify that the ±20 ppm stability meets the system timing requirements across the full -40°C to +85°C operating temperature range.

Part Context

This component belongs to the QT252S series of surface-mount quartz crystals. The series typically includes variants with different frequencies and stability ratings, such as the QT252S-24.000MDDQ-T and QT252S-48.000MAHE-T. These parts share similar physical dimensions and packaging technologies but vary in electrical performance characteristics.

Replacement Considerations

The QT252S-40.000MDIQ-T from TXC Corporation is listed as a similar alternative. Verify compatibility regarding load capacitance and stability specifications before substitution.

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.