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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 (JPY) 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: ¥17,374.1 37In Stock	Mfr. Part # 140QEX Mouser Part # 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	¥17,374.1 ¥15,473.9 ¥14,909.1 ¥13,871 View ¥13,490.6 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: ¥17,375.7 26In Stock	Mfr. Part # 140UEX Mouser Part # 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	¥17,375.7 ¥15,475.5 ¥14,909.1 ¥13,950.7 View ¥13,621.9 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: ¥15,741.3 3In Stock 10Expected 10/28/2026	Mfr. Part # 140PEX Mouser Part # 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	¥15,741.3 ¥14,299.5 ¥13,826.2 ¥13,415.9 View ¥13,023.9 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: ¥15,726.3 5In Stock	Mfr. Part # 140TEX Mouser Part # 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	¥15,726.3 ¥14,944 ¥14,709.8 ¥14,483.9 View ¥14,284.6 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: ¥14,625.1 1In Stock	Mfr. Part # 140NEX Mouser Part # 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	¥14,625.1 ¥12,675.1 ¥12,170.1 ¥12,019 View ¥11,834.6 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: ¥13,824.5 6Factory Stock Available	Mfr. Part # 140MEX Mouser Part # 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	¥13,824.5 ¥13,195 ¥12,670.1 ¥12,507.3 View ¥12,276.5 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: ¥17,526.9 8Factory Stock Available	Mfr. Part # 140REX Mouser Part # 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	¥17,526.9 ¥14,794.5 ¥14,714.8 ¥14,440.7 View ¥14,238.1 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