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Current Rating
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DC Resistance (DCR) - Primary
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DC Resistance (DCR) - Secondary
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321mOhm 365mOhm 476mOhm (1)

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ECCN Code
EAR99 (10)
Factory Lead Time
4 Weeks (20)
Frequency Range
150Hz~15kHz (2)

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Frequency Response
u00b11dB (20)
Height
20.574mm (2)

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Height Seated (Max)
0.810 20.57mm (2)

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3.060 77.72mm (3)

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Impedance - Primary (u03a9)
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Impedance - Secondary (u03a9)
8 (3)

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4 8 16 (12)

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0.5dB (4)
Insertion Loss (dB)
1 dB (17)
Lead Free
Lead Free (4)
Max DC Current
6.5mA (1)

56mA (1)

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Moisture Sensitivity Level (MSL)
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1 (Unlimited) (13)
Mount
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Package / Case
300 (1)
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Obsolete (2)
Pbfree Code
yes (1)
Power Level
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Power Rating
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Published
2000 (3)

2016 (2)

2013 (4)

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Reach Compliance Code
unknown (1)
RoHS Status
ROHS3 Compliant (18)

RoHS Compliant (2)
Series
146 (2)

148 (2)

149 (2)

A (8)

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1750 (1)
Shielding
Unshielded (10)

Shielded (4)
Size / Dimension
1.630Lx0.880W 41.40mmx22.35mm (2)

0.820Lx0.680W 20.83mmx17.27mm (2)

1.060Lx0.820W 26.92mmx20.83mm (2)

2.750Lx2.500W 69.85mmx63.50mm (1)

4.500Lx3.750W 114.30mmx95.25mm (2)

4.950Lx3.750W 125.73mmx95.20mm (1)

3.750Lx2.500W 95.25mmx63.50mm (1)

3.250Lx2.500W 82.55mmx63.50mm (1)

4.000Lx3.130W 101.60mmx79.50mm (1)

3.880Lx3.310W 98.55mmx84.07mm (1)

4.185Lx3.125W 106.30mmx79.38mm (1)

4.250Lx3.130W 107.95mmx79.50mm (1)

4.250Lx3.750W 107.95mmx95.25mm (1)

5.000Lx4.250W 127.00mmx107.95mm (1)

7.500Lx4.380W 190.50mmx111.25mm (1)

2.875Lx1.900W 73.02mmx48.26mm (1)
Termination
Wire Leads (14)

PC Pin (4)

Terminals (2)
Termination Style
Wire Leads (14)

PC Pin (4)
Transformer Type
Economical Open Type (6)

Push-Pull Audiophile, Ultra-Linear - Tube Output (9)

Single Ended Audiophile, Ultra-Linear - Tube Output (2)

Push-Pull Potted, Ultra-Linear - Tube Output (2)

POWER TRANSFORMER (1)
Voltage - Isolation
2000V @ 1 Second (8)

2828VDC @ 1 Second (1)

2000Vrms (1)

3535VDC @ 1 Second (2)

1750V @ 1 Second (1)
Weight
0.031lb 14.06g (2)

0.038lb 17.24g (2)

0.063lb 28.58g (2)

2.5lbs 1.1kg (1)

11lbs 5kg (2)

4.5lbs 2kg (1)

3.5lbs 1.6kg (1)

6.5lbs 2.9kg (1)

8lbs 3.6kg (2)

12lbs 5.4kg (1)

14lbs 6.4kg (1)

28lbs 12.7kg (1)

Categories

Audio Transformers

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100 Results

Product	Inventory	Pricing(USD)	Datasheet	Current	Current Rating	DC Resistance (DCR)	DC Resistance (DCR) - Primary	DC Resistance (DCR) - Secondary	ECCN Code	Factory Lead Time	Frequency Range	Frequency Response	Height	Height Seated (Max)	Impedance - Primary (u03a9)	Impedance - Secondary (u03a9)	Inductance	Insertion Loss	Insertion Loss (dB)	Lead Free	Max DC Current	Moisture Sensitivity Level (MSL)	Mount	Mounting Type	Package / Case	Packaging	Part Status	Pbfree Code	Power Level	Power Rating	Published	Reach Compliance Code	RoHS Status	Series	Shielding	Size / Dimension	Termination	Termination Style	Transformer Type	Voltage - Isolation	Weight
146K Hammond Manufacturing	32	-	-	4mA	4mA	-	56Ohm	700mOhm	EAR99	4 Weeks	150Hz~15kHz	u00b11dB	20.574mm	0.810 20.57mm	1kCT	8	-	-	1 dB	Lead Free	-	Not Applicable	Chassis Mount	Chassis Mount	-	Bulk	Active	-	-	700mW	-	-	ROHS3 Compliant	146	Unshielded	1.630Lx0.880W 41.40mmx22.35mm	Wire Leads	Wire Leads	Economical Open Type	-	0.031lb 14.06g
146S Hammond Manufacturing	21	-	-	2mA	-	220Ohm	220Ohm	700mOhm	EAR99	4 Weeks	150Hz~15kHz	u00b11dB	20.574mm	0.810 20.57mm	4kCT	8	-	-	1 dB	-	-	Not Applicable	Chassis Mount	Chassis Mount	-	Bulk	Active	-	-	700mW	-	-	ROHS3 Compliant	146	Unshielded	1.630Lx0.880W 41.40mmx22.35mm	Wire Leads	Wire Leads	Economical Open Type	-	0.031lb 14.06g
148K Hammond Manufacturing	36	-	-	6.5mA	6.5mA	540Ohm	540Ohm	230Ohm	EAR99	4 Weeks	200Hz~15kHz	u00b11dB	17.526mm	0.690 17.53mm	4k	2k 500/500	-	0.5dB	1 dB	-	6.5mA	Not Applicable	Through Hole	Through Hole	-	Bulk	Active	-	75mW	75W	-	-	ROHS3 Compliant	148	Unshielded	0.820Lx0.680W 20.83mmx17.27mm	PC Pin	PC Pin	Economical Open Type	-	0.038lb 17.24g
148X Hammond Manufacturing	39	-	-	800u03bcA	-	-	380Ohm	-	EAR99	4 Weeks	200Hz~15kHz	u00b11dB	17.5mm	0.690 17.53mm	4kCT	3.2	-	0.5dB	1 dB	-	-	Not Applicable	Through Hole	Through Hole	-	Bulk	Active	-	300mW	-	2000	-	ROHS3 Compliant	148	Unshielded	0.820Lx0.680W 20.83mmx17.27mm	PC Pin	PC Pin	Economical Open Type	-	0.038lb 17.24g
149C Hammond Manufacturing	8	-	-	56mA	56mA	24Ohm	24Ohm	7Ohm	EAR99	4 Weeks	200Hz~15kHz	u00b11dB	20.828mm	0.820 20.83mm	160	80 20/20	-	0.5dB	1 dB	-	56mA	Not Applicable	Through Hole	Through Hole	-	Bulk	Active	-	-	200mW	-	-	ROHS3 Compliant	149	Unshielded	1.060Lx0.820W 26.92mmx20.83mm	PC Pin	PC Pin	Economical Open Type	-	0.063lb 28.58g
149V Hammond Manufacturing	20	-	-	4mA	4mA	-	53Ohm	63Ohm	EAR99	4 Weeks	200Hz~15kHz	u00b11dB	20.83mm	0.820 20.83mm	600CT	1.2k 300/300	-	0.5dB	1 dB	-	-	Not Applicable	Through Hole	Through Hole	300	Bulk	Active	-	1000mW	1W	-	-	ROHS3 Compliant	149	Unshielded	1.060Lx0.820W 26.92mmx20.83mm	PC Pin	PC Pin	Economical Open Type	-	0.063lb 28.58g
1609A Hammond Manufacturing	2250	-	-	100mA	-	-	102.2Ohm 114.3Ohm	321mOhm 365mOhm 476mOhm	-	4 Weeks	30Hz~30kHz	u00b11dB	-	3.060 77.72mm	10kCT	4 8 16	-	-	1 dB	-	-	1 (Unlimited)	Chassis Mount	Chassis Mount	-	Bulk	Active	-	10W	-	-	-	ROHS3 Compliant	A	-	2.750Lx2.500W 69.85mmx63.50mm	Wire Leads	Wire Leads	Push-Pull Audiophile, Ultra-Linear - Tube Output	2000V @ 1 Second	2.5lbs 1.1kg
1627SEA Hammond Manufacturing	2828	-	-	160mA	-	-	30Ohm 47.44Ohm	402mOhm 502mOhm 700mOhm	-	4 Weeks	20Hz~20kHz	u00b11dB	-	4.560 115.82mm	2.5k	4 8 16	20 H	-	1 dB	-	-	1 (Unlimited)	Chassis Mount	Chassis Mount	-	Bulk	Active	-	-	30W	2016	unknown	ROHS3 Compliant	1600	Unshielded	4.500Lx3.750W 114.30mmx95.25mm	Wire Leads	Wire Leads	Single Ended Audiophile, Ultra-Linear - Tube Output	2828VDC @ 1 Second	11lbs 5kg
1640SEA Hammond Manufacturing	2179	-	-	200mA	200mA	-	-	-	EAR99	4 Weeks	20Hz~20kHz	u00b11dB	115.824mm	4.560 115.82mm	11.25k	4 8 16	14 H	-	1 dB	-	200mA	1 (Unlimited)	Chassis Mount	Chassis Mount	-	Bulk	Active	-	-	30W	2016	-	ROHS3 Compliant	1600	-	4.950Lx3.750W 125.73mmx95.20mm	Wire Leads	Wire Leads	Single Ended Audiophile, Ultra-Linear - Tube Output	2000Vrms	11lbs 5kg
1645A Hammond Manufacturing	2632	-	-	128mA	-	-	72.11Ohm 79.35Ohm	276mOhm 391mOhm 464mOhm 9.304Ohm	-	4 Weeks	30Hz~30kHz	u00b11dB	-	3.060 77.72mm	5kCT	4 8 16 70V	-	-	1 dB	-	-	1 (Unlimited)	Chassis Mount	Chassis Mount	-	Bulk	Active	-	30W	-	-	-	ROHS3 Compliant	A	-	3.750Lx2.500W 95.25mmx63.50mm	Wire Leads	Wire Leads	Push-Pull Audiophile, Ultra-Linear - Tube Output	2000V @ 1 Second	4.5lbs 2kg
1650E Hammond Manufacturing	2125	-	-	100mA	-	-	98.98Ohm 101.9Ohm	154mOhm 218mOhm 303mOhm	-	4 Weeks	30Hz~30kHz	u00b11dB	77.724mm	3.060 77.72mm	8kCT	4 8 16	-	-	1 dB	Lead Free	100mA	1 (Unlimited)	Chassis Mount	Chassis Mount	-	Bulk	Active	-	-	15W	2013	-	ROHS3 Compliant	A	Shielded	3.250Lx2.500W 82.55mmx63.50mm	Wire Leads	Wire Leads	Push-Pull Audiophile, Ultra-Linear - Tube Output	2000V @ 1 Second	3.5lbs 1.6kg
1650HA Hammond Manufacturing	2534	-	-	200mA	200mA	-	63.69Ohm 71.33Ohm	74mOhm 223mOhm 258mOhm	-	4 Weeks	30Hz~30kHz	u00b11dB	96.774mm	3.810 96.77mm	6.6kCT	4 8 16	-	-	1 dB	Lead Free	-	1 (Unlimited)	Chassis Mount	Chassis Mount	-	Bulk	Active	-	-	40W	2012	-	ROHS3 Compliant	A	Unshielded	4.000Lx3.130W 101.60mmx79.50mm	Wire Leads	Wire Leads	Push-Pull Audiophile, Ultra-Linear - Tube Output	2000V @ 1 Second	6.5lbs 2.9kg
1650KP Hammond Manufacturing	-	-	-	-	-	-	-	-	EAR99	4 Weeks	30Hz~30kHz	u00b11dB	107.95mm	4.250 107.95mm	3.4kCT	4 8 16	-	-	-	-	-	1 (Unlimited)	Through Hole	Through Hole	-	Bulk	Obsolete	-	50W	-	2000	-	RoHS Compliant	1600	Unshielded	3.880Lx3.310W 98.55mmx84.07mm	Terminals	-	Push-Pull Potted, Ultra-Linear - Tube Output	-	-
1650N Hammond Manufacturing	2740	-	-	-	318mA	-	82.5Ohm	232mOhm 270mOhm	EAR99	4 Weeks	30Hz~30kHz	u00b11dB	96.774mm	3.859 98.02mm	4.3kCT	4 8 16	-	-	1 dB	-	318mA	1 (Unlimited)	Chassis Mount	Chassis Mount	-	Bulk	Active	-	60W	60mW	2000	-	ROHS3 Compliant	1600	Shielded	4.185Lx3.125W 106.30mmx79.38mm	Wire Leads	Wire Leads	Push-Pull Audiophile, Ultra-Linear - Tube Output	2000V @ 1 Second	8lbs 3.6kg
1650NA Hammond Manufacturing	2148	-	-	318mA	318mA	-	37.19Ohm 42.17Ohm	244mOhm 377mOhm 490mOhm	-	4 Weeks	30Hz~30kHz	u00b11dB	96.774mm	3.810 96.77mm	4.3kCT	4 8 16	-	-	1 dB	-	-	1 (Unlimited)	Chassis Mount	Chassis Mount	-	Bulk	Active	-	-	60W	2012	-	ROHS3 Compliant	A	Shielded	4.250Lx3.130W 107.95mmx79.50mm	Wire Leads	Wire Leads	Push-Pull Audiophile, Ultra-Linear - Tube Output	2000V @ 1 Second	8lbs 3.6kg
1650RA Hammond Manufacturing	2696	-	-	318mA	318mA	-	47.43Ohm 54.65Ohm	232mOhm 333mOhm 343mOhm	-	4 Weeks	30Hz~30kHz	u00b11dB	115.82mm	4.560 115.82mm	5kCT	4 8 16	-	-	1 dB	-	318mA	1 (Unlimited)	Chassis Mount	Chassis Mount	-	Bulk	Active	-	100W	100mW	2013	-	ROHS3 Compliant	A	-	4.250Lx3.750W 107.95mmx95.25mm	Wire Leads	Wire Leads	Push-Pull Audiophile, Ultra-Linear - Tube Output	3535VDC @ 1 Second	12lbs 5.4kg
1650RP Hammond Manufacturing	-	-	-	-	-	-	44Ohm 98.5Ohm	210mOhm 344mOhm	EAR99	4 Weeks	30Hz~30kHz	u00b11dB	114.3mm	4.500 114.30mm	5k	4 8 16	-	-	-	-	-	1 (Unlimited)	Through Hole	Through Hole	-	Bulk	Obsolete	-	100W	-	2015	-	RoHS Compliant	1600	Unshielded	5.000Lx4.250W 127.00mmx107.95mm	Terminals	-	Push-Pull Potted, Ultra-Linear - Tube Output	2000V @ 1 Second	-
1650TA Hammond Manufacturing	2885	-	-	403mA	403mA	-	22.07Ohm 24.85Ohm	251mOhm 334mOhm 359mOhm	-	4 Weeks	30Hz~30kHz	u00b11dB	115.824mm	4.560 115.82mm	1.9kCT	4 8 16	-	-	1 dB	Lead Free	403mA	1 (Unlimited)	Chassis Mount	Chassis Mount	-	Bulk	Active	-	-	120W	2013	-	ROHS3 Compliant	A	Shielded	4.500Lx3.750W 114.30mmx95.25mm	Wire Leads	Wire Leads	Push-Pull Audiophile, Ultra-Linear - Tube Output	2000V @ 1 Second	14lbs 6.4kg
1650WA Hammond Manufacturing	2335	-	-	806mA	806mA	-	15.65Ohm 17.19Ohm	152mOhm 203mOhm 217mOhm	-	4 Weeks	30Hz~30kHz	u00b11dB	113.35mm	5.250 133.35mm	1.9kCT	4 8 16	-	-	1 dB	-	806mA	1 (Unlimited)	Chassis Mount	Chassis Mount	-	Bulk	Active	-	280W	280mW	2013	-	ROHS3 Compliant	A	-	7.500Lx4.380W 190.50mmx111.25mm	Wire Leads	Wire Leads	Push-Pull Audiophile, Ultra-Linear - Tube Output	3535VDC @ 1 Second	28lbs 12.7kg
1750B Hammond Manufacturing	23	-	-	-	-	-	254.8Ohm	420mOhm	-	4 Weeks	70Hz~10kHz	u00b11dB	-	2.433 61.80mm	5.482k	8	-	-	-	-	-	Not Applicable	Chassis Mount	Chassis Mount	-	Bulk	Active	yes	10W	-	-	-	ROHS3 Compliant	1750	-	2.875Lx1.900W 73.02mmx48.26mm	Wire Leads	Wire Leads	POWER TRANSFORMER	1750V @ 1 Second	-

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