QST Crystals

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of 2,431

Mfr Part #	Quantity Available	Price	Series	Package	Product Status	Type	Frequency	Frequency Stability	Frequency Tolerance	Load Capacitance	ESR (Equivalent Series Resistance)	Operating Mode	Operating Temperature	Ratings	Mounting Type	Package / Case	Size / Dimension	Height - Seated (Max)

QT49-4.194304MAHE-B HC49 XTAL 30ppm 30ppm 12pF QST	3,249 Marketplace	1 : $0.34000 Tape & Reel (TR)	QT49	Tape & Reel (TR)	Active	MHz Crystal	4.194304 MHz	±30ppm	±30ppm	12pF	150 Ohms	Fundamental	-40°C ~ 85°C	-	Through Hole	HC-49S	0.453" L x 0.197" W (11.50mm x 5.00mm)	0.145" (3.68mm)
QT49-20.500MAHQ-B HC49 XTAL 30ppm 30ppm 10pF QST	2,280 Marketplace	1 : $0.34000 Tape & Reel (TR)	QT49	Tape & Reel (TR)	Active	MHz Crystal	20.5 MHz	±30ppm	±30ppm	10pF	30 Ohms	Fundamental	-40°C ~ 85°C	-	Through Hole	HC-49S	0.453" L x 0.197" W (11.50mm x 5.00mm)	0.145" (3.68mm)
QT49-13.560MAHE-B HC49 XTAL 30ppm 30ppm 12pF QST	1,743 Marketplace	1 : $0.34000 Tape & Reel (TR)	QT49	Tape & Reel (TR)	Active	MHz Crystal	13.56 MHz	±30ppm	±30ppm	12pF	40 Ohms	Fundamental	-40°C ~ 85°C	-	Through Hole	HC-49S	0.453" L x 0.197" W (11.50mm x 5.00mm)	0.145" (3.68mm)
QT49-25.000MBBI-B HC49 50PPM @25C 50PPM (-20 TO 7 QST	6,167 Marketplace	50 : $0.22000 Tape & Reel (TR) 1 : $0.40000 Tape & Reel (TR)	QT49	Tape & Reel (TR) Tape & Reel (TR)	Active	MHz Crystal	25 MHz	±50ppm	±50ppm	16pF	30 Ohms	Fundamental	-20°C ~ 70°C	-	Through Hole	HC-49/US	0.453" L x 0.197" W (11.50mm x 5.00mm)	0.145" (3.68mm)
QT49-48.000MFEQ-B HC49 15PPM @25C 10PPM (-20 TO 7 QST	6,000 Marketplace	50 : $0.28000 Tape & Reel (TR) 1 : $0.40000 Tape & Reel (TR)	QT49	Tape & Reel (TR) Tape & Reel (TR)	Active	MHz Crystal	48 MHz	±10ppm	±15ppm	10pF	80 Ohms	3rd Overtone	-20°C ~ 70°C	-	Through Hole	HC-49/US	0.453" L x 0.197" W (11.50mm x 5.00mm)	0.145" (3.68mm)
QT49-18.432MABK-B HC49 XTAL 30ppm 30ppm 20pF QST	2,000 Marketplace	1 : $0.40000 Tape & Reel (TR)	QT49	Tape & Reel (TR)	Active	MHz Crystal	18.432 MHz	±30ppm	±30ppm	20pF	30 Ohms	Fundamental	-	-	Through Hole	HC-49S	0.453" L x 0.197" W (11.50mm x 5.00mm)	0.145" (3.68mm)
QT325G-26.000MAGV-T 3.2x2.5 XTAL 30ppm 50ppm 8pF QST	46,106 Marketplace	1 : $0.43000 Tape & Reel (TR)	QT325G	Tape & Reel (TR)	Active	MHz Crystal	26 MHz	±50ppm	±30ppm	8pF	60 Ohms	Fundamental	-40°C ~ 85°C	-	Surface Mount	4-SMD, No Lead	0.126" L x 0.098" W (3.20mm x 2.50mm)	0.035" (0.90mm)
QT49S-28.63636MDGE-T HC49 XTAL 20ppm 12pf QST	35,000 Marketplace	1 : $0.43000 Tape & Reel (TR)	QT49S	Tape & Reel (TR)	Active	MHz Crystal	28.63636 MHz	±50ppm	±20ppm	12pF	30 Ohms	Fundamental	-	-	Surface Mount	HC-49/US	0.449" L x 0.189" W (11.40mm x 4.80mm)	0.161" (4.10mm)
QT325G-12.000MAHE-T 3.2X2.5 30PPM @25C 30PPM (-40 TO QST	18,000 Marketplace	1 : $0.57000 Tape & Reel (TR) 1 : $0.43000 Tape & Reel (TR)	QT325G	Tape & Reel (TR) Tape & Reel (TR)	Active	MHz Crystal	12 MHz	±30ppm	±30ppm	12pF	100 Ohms	Fundamental	-40°C ~ 85°C	-	Surface Mount	4-SMD, No Lead	0.126" L x 0.098" W (3.20mm x 2.50mm)	0.035" (0.90mm)
QT49S-18.432MAGQ-T HC49 XTAL 30ppm 50ppm 10pF QST	6,963 Marketplace	1 : $0.43000 Tape & Reel (TR)	QT49S	Tape & Reel (TR)	Active	MHz Crystal	18.432 MHz	±50ppm	±30ppm	10pF	30 Ohms	Fundamental	-	-	Surface Mount	HC-49/US	0.449" L x 0.189" W (11.40mm x 4.80mm)	-
QT252S-24.576MAHE-T 2.5x2.0 XTAL 30ppm 30ppm 12pF QST	5,820 Marketplace	1 : $0.43000 Tape & Reel (TR)	QT252S	Tape & Reel (TR)	Active	MHz Crystal	24.576 MHz	±30ppm	±30ppm	12pF	100 Ohms	Fundamental	-40°C ~ 85°C	-	Surface Mount	4-SMD, No Lead	0.098" L x 0.079" W (2.50mm x 2.00mm)	0.022" (0.55mm)
QT252S-27.000MAHE-T 2.5X2.0 30PPM @25C 30PPM (-40 TO QST	3,152 Marketplace	1 : $0.43000 Tape & Reel (TR)	QT252S	Tape & Reel (TR)	Active	MHz Crystal	27 MHz	±30ppm	±30ppm	12pF	100 Ohms	Fundamental	-40°C ~ 85°C	-	Surface Mount	4-SMD, No Lead	0.098" L x 0.079" W (2.50mm x 2.00mm)	0.022" (0.55mm)
QT325G-25.000MAHV-T 3.2X2.5 30PPM @25C 30PPM (-40 TO QST	3,100 Marketplace	1 : $0.43000 Tape & Reel (TR) 1 : $0.43000 Tape & Reel (TR)	QT325G	Tape & Reel (TR) Tape & Reel (TR)	Active	MHz Crystal	25 MHz	±30ppm	±30ppm	8pF	60 Ohms	Fundamental	-40°C ~ 85°C	-	Surface Mount	4-SMD, No Lead	0.126" L x 0.098" W (3.20mm x 2.50mm)	0.035" (0.90mm)
QT325G-12.288MAHQ-T 3.2X2.5 30PPM @25C 30PPM (-40 TO QST	3,100 Marketplace	1 : $0.43000 Tape & Reel (TR) 1 : $0.43000 Tape & Reel (TR)	QT325G	Tape & Reel (TR) Tape & Reel (TR)	Active	MHz Crystal	12.288 MHz	±30ppm	±30ppm	10pF	100 Ohms	Fundamental	-40°C ~ 85°C	-	Surface Mount	4-SMD, No Lead	0.126" L x 0.098" W (3.20mm x 2.50mm)	0.035" (0.90mm)
QT325G-14.31818MAGV-T 3.2x2.5 XTAL 30ppm 50ppm 8pF QST	3,068 Marketplace	1 : $0.43000 Tape & Reel (TR)	QT325G	Tape & Reel (TR)	Active	MHz Crystal	14.31818 MHz	±50ppm	±30ppm	8pF	100 Ohms	Fundamental	-40°C ~ 85°C	-	Surface Mount	4-SMD, No Lead	0.126" L x 0.098" W (3.20mm x 2.50mm)	0.035" (0.90mm)
QT325G-20.000MAHJ-T 3.2X2.5 30PPM @25C 30PPM (-40 TO QST	3,000 Marketplace	1 : $0.43000 Tape & Reel (TR)	QT325G	Tape & Reel (TR)	Active	MHz Crystal	20 MHz	±30ppm	±30ppm	18pF	60 Ohms	Fundamental	-40°C ~ 85°C	-	Surface Mount	4-SMD, No Lead	0.126" L x 0.098" W (3.20mm x 2.50mm)	0.035" (0.90mm)
QT325G-20.000MAHE-T 3.2X2.5 30PPM @25C 30PPM (-40 TO QST	3,000 Marketplace	1 : $0.43000 Tape & Reel (TR)	QT325G	Tape & Reel (TR)	Active	MHz Crystal	20 MHz	±30ppm	±30ppm	12pF	60 Ohms	Fundamental	-40°C ~ 85°C	-	Surface Mount	4-SMD, No Lead	0.126" L x 0.098" W (3.20mm x 2.50mm)	0.035" (0.90mm)
QT325G-12.000MAHQ-T 3.2X2.5 30PPM @25C 30PPM (-40 TO QST	3,000 Marketplace	1 : $0.43000 Tape & Reel (TR)	QT325G	Tape & Reel (TR)	Active	MHz Crystal	12 MHz	±30ppm	±30ppm	10pF	100 Ohms	Fundamental	-40°C ~ 85°C	-	Surface Mount	4-SMD, No Lead	0.126" L x 0.098" W (3.20mm x 2.50mm)	0.035" (0.90mm)
QT325G-19.200MAHJ-T 3.2X2.5 30PPM @25C 30PPM (-40 TO QST	3,000 Marketplace	1 : $0.43000 Tape & Reel (TR)	QT325G	Tape & Reel (TR)	Active	MHz Crystal	19.2 MHz	±30ppm	±30ppm	18pF	60 Ohms	Fundamental	-40°C ~ 85°C	-	Surface Mount	4-SMD, No Lead	0.126" L x 0.098" W (3.20mm x 2.50mm)	0.035" (0.90mm)
QT325G-26.000MAHQ-T 3.2X2.5 30PPM @25C 30PPM (-40 TO QST	3,000 Marketplace	1 : $0.43000 Tape & Reel (TR)	QT325G	Tape & Reel (TR)	Active	MHz Crystal	26 MHz	±30ppm	±30ppm	10pF	60 Ohms	Fundamental	-40°C ~ 85°C	-	Surface Mount	4-SMD, No Lead	0.126" L x 0.098" W (3.20mm x 2.50mm)	0.035" (0.90mm)
QT325G-14.7456MAHE-T 3.2X2.5 30PPM @25C 30PPM (-40 TO QST	3,000 Marketplace	1 : $0.43000 Tape & Reel (TR)	QT325G	Tape & Reel (TR)	Active	MHz Crystal	14.7456 MHz	±30ppm	-	-	100 Ohms	Fundamental	-20°C ~ 70°C	-	Surface Mount	4-SMD, No Lead	0.126" L x 0.098" W (3.20mm x 2.50mm)	0.035" (0.90mm)
QT325G-28.63636MAGV-T 3.2x2.5 XTAL 30ppm 50ppm 8pF QST	3,000 Marketplace	1 : $0.43000 Tape & Reel (TR)	QT325G	Tape & Reel (TR)	Active	MHz Crystal	28.63636 MHz	±50ppm	±30ppm	8pF	60 Ohms	Fundamental	-40°C ~ 85°C	-	Surface Mount	4-SMD, No Lead	0.126" L x 0.098" W (3.20mm x 2.50mm)	0.035" (0.90mm)
QT325G-24.576MAGV-T 3.2x2.5 XTAL 30ppm 50ppm 8pF QST	3,000 Marketplace	1 : $0.43000 Tape & Reel (TR)	QT325G	Tape & Reel (TR)	Active	MHz Crystal	24.576 MHz	±50ppm	±30ppm	8pF	60 Ohms	Fundamental	-40°C ~ 85°C	-	Surface Mount	4-SMD, No Lead	0.126" L x 0.098" W (3.20mm x 2.50mm)	0.035" (0.90mm)
QT325G-37.050MAGV-T 3.2x2.5 XTAL 30ppm 50ppm 8pF QST	3,000 Marketplace	1 : $0.43000 Tape & Reel (TR)	QT325G	Tape & Reel (TR)	Active	MHz Crystal	37.05 MHz	±50ppm	±30ppm	8pF	60 Ohms	Fundamental	-40°C ~ 85°C	-	Surface Mount	4-SMD, No Lead	0.126" L x 0.098" W (3.20mm x 2.50mm)	0.035" (0.90mm)
QT325G-13.560MAGE-T 3.2x2.5 XTAL 30ppm 50ppm 12pF QST	3,000 Marketplace	1 : $0.43000 Tape & Reel (TR)	QT325G	Tape & Reel (TR)	Active	MHz Crystal	13.56 MHz	±50ppm	±30ppm	12pF	100 Ohms	Fundamental	-40°C ~ 85°C	-	Surface Mount	4-SMD, No Lead	0.126" L x 0.098" W (3.20mm x 2.50mm)	0.035" (0.90mm)

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Crystal products are passive components most commonly used as time or frequency references in electronic systems. Consisting of a piezoelectric crystal that mechanically vibrates at a known frequency, their use requires provision of an external oscillator circuit with carefully designed capacitance, drive voltage, and series resistance characteristics, to generate a signal at the indicated crystal frequency that operates successfully over the operating temperature range, without damaging the crystal element. Active devices which integrate this additional necessary circuitry are considered oscillators and are catalogued separately.

QST Crystals

QST Crystals

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