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QTT252-40.000MDN-T
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Reference price and stock shown as of 2026-09-19. Confirm live availability and unit price via RFQ before placing a PO.

QTT252-40.000MDN-T

XTAL OSC TCXO 40.0000MHZ SNWV
QST · Oscillators · BOM Matching
Mfr. Part Number
QTT252-40.000MDN-T
Manufacturer
QST
Package / Case
4-SMD, No Lead
Datasheet
Datasheet
Description
XTAL OSC TCXO 40.0000MHZ SNWV
RoHS Status
Lead Free / RoHS Complaint
Availability
Sourcing — Lead time quoted on request (often 3–15 business days by channel)
sample
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QTT252-40.000MDN-T
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In Stock1,403
Unit
Price
$1.71
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Reference Price
QuantityPrice
1$ 1.7100
Prices are for reference only. The final transaction is subject to confirmation.
As of 2026-09-19 · Valid as reference until 2026-09-26 · Request RFQ for live stock.
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Specification Summary

Package / Case
4-SMD, No Lead
Voltage - Supply
1.8V
Current - Supply (Max)
2mA
Frequency
40 MHz
Frequency Stability
±2ppm
Operating Temperature
-30°C ~ 85°C
Mounting Type
Surface Mount
Base Resonator
Crystal
Full specifications are listed below. Need alternates or BOM matching? Read BOM guide · Request a quote
Stock status: Sourcing — Lead time quoted on request (often 3–15 business days by channel)
Shortage / allocation / EOL lines may need longer — ask via RFQ.
Reference price and stock shown as of 2026-09-19. Confirm live availability and unit price via RFQ before placing a PO.
Lead time FAQ Authenticity FAQ MOQ FAQ
Specifications
Product Description
Purchase & Inquiry
Absolute Pull Range (APR)
-
Mounting Type
Surface Mount
Operating Temperature
-30°C ~ 85°C
Size / Dimension
0.098" L x 0.079" W (2.50mm x 2.00mm)
Type
TCXO
Base Resonator
Crystal
Frequency Stability
±2ppm
Spread Spectrum Bandwidth
-
Current - Supply (Max)
2mA
Frequency
40 MHz
Function
-
Height - Seated (Max)
0.031" (0.80mm)
Output
Clipped Sine Wave
Package / Case
4-SMD, No Lead
Ratings
-
Voltage - Supply
1.8V
XTAL OSC TCXO 40.0000MHZ SNWV
Brand Introduction

QST is a leading supplier of Timing Devices, EMI Suppression ICs, and Wireless Power Modules. QST was established in 2012 and is headquartered in La Habra, California. QST is a branded division of TXC Corporation, combining products from multiple TXC affiliated companies to market them under one sales team, and to bring the latest technologies in functionality and miniaturization of Timing Devices, EMI Suppression ICs, and Wireless Charging solutions.

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Buying FAQ — QTT252-40.000MDN-T

Answer-first notes for stock, authenticity, lead time and quoting. Marked up as FAQPage.

How do I buy QTT252-40.000MDN-T from Yingxinyuan?

Open RFQ with quantity and target date, or upload a BOM that includes QTT252-40.000MDN-T. We reply with stock, channel note, reference price and ETA.

Is the listed price final?

Prices on the product page are reference only. Confirm unit price, currency and validity via RFQ before placing a PO.

How fresh is the stock figure?

Stock and reference price show an as-of date on the page. Ask for a live confirm — allocation lines can change daily.

How do you source authentic parts?

We source from manufacturers, franchised distributors and verified independents, then inspect incoming lots. See /anti-counterfeit/.

What is a typical lead time?

In-stock lines often ship within 24–48 hours after confirmation. Sourcing / allocation ETAs are quoted per line — see /lead-time-shipping/.
BOM matching · Anti-counterfeit · Lead time & shipping

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