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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 (IDR) 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: Rp1.837.902 41In 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	41In Stock	Rp1.837.902 Rp1.644.535 Rp1.581.242 Rp1.499.969 View Rp1.461.809 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, 150/600: 600/2400 ohms 140PEX Hammond Manufacturing 1: Rp1.675.907 4In Stock 4On Order	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	4In Stock 4On Order	Rp1.675.907 Rp1.538.312 Rp1.489.512 Rp1.460.892 View Rp1.421.815 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: Rp1.674.439 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	Rp1.674.439 Rp1.613.164 Rp1.590.231 Rp1.567.482 View Rp1.549.870 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, 10K:10K ohms 140UEX Hammond Manufacturing 1: Rp1.832.949 6In Stock 20Expected 13/10/2026	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	6In Stock 20Expected 13/10/2026	Rp1.832.949 Rp1.639.582 Rp1.550.604 Rp1.499.602 View Rp1.461.075 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, 50:1500 ohms 140NEX Hammond Manufacturing 1: Rp1.488.594 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	Rp1.488.594 Rp1.357.054 Rp1.313.023 Rp1.297.613 View Rp1.274.680 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: Rp1.487.310 9Factory 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	9Factory Stock Available More Info Available	Rp1.487.310 Rp1.424.017 Rp1.368.061 Rp1.351.733 View Rp1.327.700 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: Rp1.773.141 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	Rp1.773.141 Rp1.588.397 Rp1.562.896 Rp1.544.366 View 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