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140EX Impedance Matching Audio Transformers

Hammond's 140EX Studio-Grade Impedance Matching Audio Transformers operate in the 20Hz to 20KHz frequency range. The metal can construction provides excellent shielding from a broad range of external sources. They are designed for maximum bandwidth and low distortion (at +10dBm power level or less). The nickel core provides high permeability combined with low losses. Typical applications for these audio transformers include input/output isolation, line matching, driver, and hybrid applications.

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Select	Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (CHF) Filter the results in the table by unit price based on your quantity.	Qty.	RoHS	ECAD Model	Product	Termination Style	Frequency Range	Primary Impedance	Secondary Impedance	Number of Channels	Width	Height	Series	Packaging
	Audio Transformers / Signal Transformers Audio transformer, studio grade impedance matching, 600CT:600CT ohms 140QEX Hammond Manufacturing 1: CHF 98.50 37In Stock	Mfr. Part No. 140QEX Mouser Part No 546-140QEX	Hammond Manufacturing	Audio Transformers / Signal Transformers Audio transformer, studio grade impedance matching, 600CT:600CT ohms Learn More about Hammond Manufacturing hammond 140ex	Datasheet	37In Stock	CHF 98.50 CHF 87.72 CHF 84.52 CHF 78.63 View CHF 76.48 Quote	Min.: 1 Mult.: 1			Impedance Matching Transformers	Wire Lead	20 Hz to 20 kHz	600 Ohms	600 Ohms	Single	31.8 mm	25.4 mm	140EX	Bulk
	Audio Transformers / Signal Transformers Audio transformer, studio grade impedance matching, 10K:10K ohms 140UEX Hammond Manufacturing 1: CHF 98.50 26In Stock	Mfr. Part No. 140UEX Mouser Part No 546-140UEX	Hammond Manufacturing	Audio Transformers / Signal Transformers Audio transformer, studio grade impedance matching, 10K:10K ohms Learn More about Hammond Manufacturing hammond 140ex	Datasheet	26In Stock	CHF 98.50 CHF 87.73 CHF 84.52 CHF 79.08 View CHF 77.22 Quote	Min.: 1 Mult.: 1			Impedance Matching Transformers	Wire Lead	20 Hz to 20 kHz	10 kOhms	10 kOhms	Single	31.8 mm	25.4 mm	140EX	Bulk
	Audio Transformers / Signal Transformers Audio transformer, studio grade impedance matching, 150/600: 600/2400 ohms 140PEX Hammond Manufacturing 1: CHF 89.24 3In Stock 10Expected 10/28/2026	Mfr. Part No. 140PEX Mouser Part No 546-140PEX	Hammond Manufacturing	Audio Transformers / Signal Transformers Audio transformer, studio grade impedance matching, 150/600: 600/2400 ohms Learn More about Hammond Manufacturing hammond 140ex	Datasheet	3In Stock 10Expected 10/28/2026	CHF 89.24 CHF 81.07 CHF 78.38 CHF 76.05 View CHF 73.83 Quote	Min.: 1 Mult.: 1			Impedance Matching Transformers	Wire Lead	20 Hz to 20 kHz	600 Ohms	2.4 kOhms	Single	31.8 mm	25.4 mm	140EX	Bulk
	Audio Transformers / Signal Transformers Audio transformer, studio grade impedance matching, 1000:1000 ohms 140TEX Hammond Manufacturing 1: CHF 89.15 5In Stock	Mfr. Part No. 140TEX Mouser Part No 546-140TEX	Hammond Manufacturing	Audio Transformers / Signal Transformers Audio transformer, studio grade impedance matching, 1000:1000 ohms Learn More about Hammond Manufacturing hammond 140ex	Datasheet	5In Stock	CHF 89.15 CHF 84.72 CHF 83.39 CHF 82.11 View CHF 80.98 Quote	Min.: 1 Mult.: 1			Impedance Matching Transformers	Wire Lead	20 Hz to 20 kHz	1 kOhms	1 kOhms	Single	31.8 mm	25.4 mm	140EX	Bulk
	Audio Transformers / Signal Transformers Audio transformer, studio grade impedance matching, 50:1500 ohms 140NEX Hammond Manufacturing 1: CHF 82.91 1In Stock	Mfr. Part No. 140NEX Mouser Part No 546-140NEX	Hammond Manufacturing	Audio Transformers / Signal Transformers Audio transformer, studio grade impedance matching, 50:1500 ohms Learn More about Hammond Manufacturing hammond 140ex	Datasheet	1In Stock	CHF 82.91 CHF 71.86 CHF 68.99 CHF 68.13 View CHF 67.09 Quote	Min.: 1 Mult.: 1			Impedance Matching Transformers	Wire Lead	20 Hz to 20 kHz	50 Ohms	1.5 kOhms	Single	31.8 mm	25.4 mm	140EX	Bulk
	Audio Transformers / Signal Transformers Audio transformer, studio grade impedance matching, 100K: 1500 ohms 140MEX Hammond Manufacturing 1: CHF 78.37 6Factory Stock Available	Mfr. Part No. 140MEX Mouser Part No 546-140MEX	Hammond Manufacturing	Audio Transformers / Signal Transformers Audio transformer, studio grade impedance matching, 100K: 1500 ohms Learn More about Hammond Manufacturing hammond 140ex	Datasheet	6Factory Stock Available More Info Available	CHF 78.37 CHF 74.81 CHF 71.83 CHF 70.90 View CHF 69.59 Quote	Min.: 1 Mult.: 1			Impedance Matching Transformers	Wire Lead	20 Hz to 20 kHz	100 kOhms	1.5 kOhms	Single	31.8 mm	25.4 mm	140EX	Bulk
	Audio Transformers / Signal Transformers Audio transformer, studio grade impedance matching, 600CT:150 ohms 140REX Hammond Manufacturing 1: CHF 99.36 8Factory Stock Available	Mfr. Part No. 140REX Mouser Part No 546-140REX	Hammond Manufacturing	Audio Transformers / Signal Transformers Audio transformer, studio grade impedance matching, 600CT:150 ohms Learn More about Hammond Manufacturing hammond 140ex	Datasheet	8Factory Stock Available More Info Available	CHF 99.36 CHF 83.87 CHF 83.42 CHF 81.86 View CHF 80.71 Quote	Min.: 1 Mult.: 1			Impedance Matching Transformers	Wire Lead	20 Hz to 20 kHz	600 Ohms	150 Ohms		31.8 mm	25.4 mm	140EX	Bulk