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0755-82798135Power Transformers
Power Transformers
Power Transformers are electromagnetic components used to convert voltage levels, transfer electrical energy and provide isolation in power supply and electronic systems. They are widely used in AC-DC power supplies, industrial control equipment, automation systems, consumer electronics, medical devices, lighting systems, communication equipment and embedded applications.
This category includes step-down transformers, step-up transformers, isolation transformers, PCB power transformers, chassis mount transformers, toroidal transformers, control transformers and related magnetic components. These products are commonly selected based on input voltage, output voltage, power rating, frequency, insulation rating, mounting type, package style, safety approvals and application requirements.
TomatoElec supplies original Power Transformers from recognized manufacturers such as Hammond Manufacturing, Triad Magnetics, Würth Elektronik, Pulse Electronics, Bourns, TDK, Murata, TE Connectivity and other major brands. As an in-stock electronic components supplier and independent distributor, TomatoElec provides inventory support, original component sourcing and BOM sourcing services for global customers.
| Photo | Mfr. Part # | Availability | Price | Quantity | Datasheet | Series | Packaging | Product Status | Type | Voltage - Primary | Voltage - Secondary (Full Load) | Current - Output (Max) | Primary Winding(s) | Secondary Winding(s) | Center Tap | Power - Max | Mounting Type | Termination Style | Size / Dimension | Height - Seated (Max) | Voltage - Isolation | Weight |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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DST4-24B18PWR XFMR LAMINATED 6VA TH |
0 | - |
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Datasheet |
Split Bobbin Plug-In | Bulk | Active | Laminated Core | 115V, 230V | Parallel 12V, Series 24V | Parallel 500mA, Series 250mA | Dual | Dual | No | 6VA | Through Hole | PC Pin | 41.40mm L x 33.27mm W | 33.27mm | 2500Vrms | 0.44 lb (199.58 g) |
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14A-56-24B30PWR XFMR LAMINATED 56VA TH |
0 | - |
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Datasheet |
International PC Plug-In | Bulk | Active | Laminated Core | 115V, 230V | Parallel 12V, Series 24V | Parallel 4.66A, Series 2.33A | Dual | Single, Multiple Taps | No | 56VA | Through Hole | PC Pin | 76.20mm L x 63.50mm W | 46.02mm | - | 1.7 lbs (771.1 g) |
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14A-56-20B24PWR XFMR LAMINATED 56VA TH |
0 | - |
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Datasheet |
International PC Plug-In | Bulk | Active | Laminated Core | 115V, 230V | Parallel 10V, Series 20V | Parallel 5.6A, Series 2.8A | Dual | Single, Multiple Taps | No | 56VA | Through Hole | PC Pin | 76.20mm L x 63.50mm W | 46.02mm | - | 1.7 lbs (771.1 g) |
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291DXPWR XFMR LAMINATED CHAS MT |
0 | - |
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Datasheet |
291 | Box | Obsolete | Laminated Core | 120V | 650V, 6.3V, 5V | 230mA, 4A, 3A | Single | Triple | Yes | - | Chassis Mount | Wire Leads | 87.33mm L x 103.20mm W | 106.38mm | - | 8 lbs (3.6 kg) |
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290AEXPWR XFMR LAMINATED CHAS MT |
0 | - |
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Datasheet |
290 | Box | Obsolete | Laminated Core | 240V | 650V, 6.3V, 5V | 81mA, 2A, 2A | Single | Triple | Yes | - | Chassis Mount | Wire Leads | 63.50mm L x 71.55mm W | 77.80mm | - | 3 lbs (1.4 kg) |
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291FEXPWR XFMR LAMINATED CHAS MT |
0 | - |
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Datasheet |
291 | Box | Obsolete | Laminated Core | 240V | 640V, 6.5V | 518mA, 5.5A | Single | Dual | Yes | - | Chassis Mount | Wire Leads | 95.25mm L x 119.13mm W | 115.90mm | - | 12 lbs (5.4 kg) |
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291DEXPWR XFMR LAMINATED CHAS MT |
0 | - |
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Datasheet |
291 | Box | Obsolete | Laminated Core | 240V | 650V, 6.3V, 5V | 230mA, 4A, 3A | Single | Triple | Yes | - | Chassis Mount | Wire Leads | 87.33mm L x 103.20mm W | 106.38mm | - | 8 lbs (3.6 kg) |
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4000-09M04AE999PWR XFMR LAMINATED 30VA CHAS MT |
0 | - |
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Datasheet |
4000, Products Unlimited | Bulk | Obsolete | Laminated Core | 208V, 240V | 24V | - | Single | Single | No | 30VA | Chassis Mount | Solder, Quick Connect | 82.55mm L x 47.75mm W | 62.23mm | - | - |
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4000-04AW18K999PWR XFMR LAMINATED 50VA CHAS MT |
0 | - |
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Datasheet |
4000, Products Unlimited | Bulk | Obsolete | Laminated Core | 480V | 24V | - | Single | Single | No | 50VA | Chassis Mount | Wire Leads | 90.47mm L x 66.55mm W | 55.58mm | - | 2.1 lbs (952.5 g) |
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4000-02E07K999PWR XFMR LAMINATED 40VA CHAS MT |
0 | - |
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Datasheet |
4000, Products Unlimited | Bulk | Obsolete | Laminated Core | 240V | 24V | - | Single | Single | No | 40VA | Chassis Mount | Wire Leads | 90.47mm L x 54.61mm W | 55.58mm | - | 1.6 lbs (725.7 g) |
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4000-03J15K999PWR XFMR LAMINATED 75VA CHAS MT |
0 | - |
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Datasheet |
4000, Products Unlimited | Bulk | Obsolete | Laminated Core | 277V | 24V | - | Single | Single | No | 75VA | Chassis Mount | Wire Leads | 101.60mm L x 63.50mm W | 46.48mm | - | 2.4 lbs (1.1 kg) |
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4000-04J15AE999PWR XFMR LAMINATED 75VA CHAS MT |
0 | - |
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Datasheet |
4000, Products Unlimited | Bulk | Obsolete | Laminated Core | 480V | 24V | - | Single | Single | No | 75VA | Chassis Mount | Solder, Quick Connect | 101.60mm L x 63.50mm W | - | - | 2.4 lbs (1.1 kg) |
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4000-09J15K999PWR XFMR LAMINATED 75VA CHAS MT |
0 | - |
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Datasheet |
4000, Products Unlimited | Bulk | Obsolete | Laminated Core | 208V, 240V | 24V | - | Single | Single | No | 75VA | Chassis Mount | Wire Leads | 101.60mm L x 63.50mm W | - | - | 2.4 lbs (1.1 kg) |
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4000Y01J15K999PWR XFMR LAMINATED 75VA CHAS MT |
0 | - |
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Datasheet |
4000, Products Unlimited | Bulk | Obsolete | Laminated Core | 120V | 24V | - | Single | Single | No | 75VA | Chassis Mount | Wire Leads | 101.60mm L x 63.50mm W | 46.48mm | - | - |
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4000Y03J15K999PWR XFMR LAMINATED 75VA CHAS MT |
0 | - |
|
Datasheet |
4000, Products Unlimited | Bulk | Obsolete | Laminated Core | 240V | 24V | - | Single | Single | No | 75VA | Chassis Mount | Wire Leads | 101.60mm L x 63.50mm W | 82.80mm | - | - |
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4000-01L15K999PWR XFMR LAMINATED 60VA CHAS MT |
0 | - |
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Datasheet |
4000, Products Unlimited | Bulk | Obsolete | Laminated Core | 120V | 24V | - | Single | Single | No | 60VA | Chassis Mount | Wire Leads | 101.60mm L x 63.50mm W | 46.48mm | - | 2.2 lbs (997.9 g) |
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4000-01A19K999PWR XFMR LAMINATED 10VA CHAS MT |
0 | - |
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Datasheet |
4000, Products Unlimited | Bulk | Obsolete | Laminated Core | 120V | 24V | - | Single | Single | No | 10VA | Chassis Mount | Wire Leads | 82.55mm L x 40.89mm W | 47.75mm | - | 0.68 lb (308.44 g) |
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4000-01C02BC999PWR XFMR LAMINATED 20VA CHAS MT |
0 | - |
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Datasheet |
4000, Products Unlimited | Bulk | Active | Laminated Core | 120V | 24V | - | Single | Single | No | 20VA | Chassis Mount | Wire Leads | - | - | - | 1.2 lbs (544.3 g) |
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4000-09C02K999PWR XFMR LAMINATED 20VA CHAS MT |
0 | - |
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Datasheet |
4000, Products Unlimited | Bulk | Obsolete | Laminated Core | 208V, 240V | 24V | - | Single | Single | No | 20VA | Chassis Mount | Wire Leads | - | 47.75mm | - | 0.89 lb (403.7 g) |
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4000-114C02BB999PWR XFMR LAMINATED 20VA CHAS MT |
0 | - |
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Datasheet |
4000, Products Unlimited | Bulk | Obsolete | Laminated Core | 240V | 12V | - | Single | Single | No | 20VA | Chassis Mount | Solder, Quick Connect | 82.55mm L x 42.67mm W | - | - | - |

