What are AC DC Converters, Offline Switches ?
AC DC Converters, Offline Switches are electronic components that convert alternating current (AC) to direct current (DC) while providing essential control and protection features. They are commonly used in industrial power management, power conversion subsystems, and production electronics assembly. Important specifications include Control Features, which ensure precise voltage regulation; Duty Cycle, which affects efficiency and thermal performance; and Fault Protection, which safeguards against overloads and short circuits. Procurement teams should validate lifecycle status and consider alternate-source options to mitigate sourcing risks.
Parts in this category
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| Part & Mfr | Total Stock | Pricing & RFQ | Control Features | Duty Cycle | Fault Protection | Frequency | Internal Switch(s) | Mounting Type | Operating Temperature | Output Isolation | Power (Watts) | Supplier Device Package | Topology | Voltage | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Analog Devices / Maxim Integrated
|
89
|
Price on request
89
|
EN, Power Good, Soft Start | 92% | Current Limiting, Over Voltage | 500kHz | Yes | Surface Mount | -40°C ~ 125°C (TJ) | Either | - | 16-TQFN (3x3) | Boost, Flyback | 4.5V ~ 36V | |
Texas Instruments
|
86
|
Price on request
86
|
Frequency Control, Soft Start, Sync | 100% | Current Limiting | 1MHz | - | Through Hole | 0°C ~ 70°C (TA) | Non-Isolated | - | 20-PDIP | Full-Bridge | 9.5V ~ 20V | |
Power Integrations
|
65
|
Price on request
65
|
Frequency Control | 66.5% | Current Limiting, Over Temperature, Over Voltage | 66kHz ~ 132kHz | Yes | Through Hole | -40°C ~ 150°C (TJ) | Isolated | 28 W | 8-PDIP-B | Flyback | 700V | |
On Semiconductor
|
62
|
Price on request
62
|
- | 70% | Current Limiting, Over Load, Over Temperature, Over Voltage, Short Circuit | 66kHz | Yes | Through Hole | -40°C ~ 125°C (TJ) | Isolated | 70 W | TO-220F-6L (Forming) | Flyback | 7.5V ~ 26V | |
On Semiconductor
|
61
|
Price on request
61
|
- | 82% | Current Limiting, Over Temperature, Over Voltage | 40kHz | No | Through Hole | -25°C ~ 150°C (TJ) | Isolated | - | 8-PDIP | Flyback | 6.6V ~ 16V | |
On Semiconductor
|
59
|
Price on request
59
|
Sync | 95% | Current Limiting, Over Load, Over Temperature, Over Voltage | 20kHz | Yes | Through Hole | -25°C ~ 85°C (TA) | Isolated | 100 W | TO-220F-5L (Forming) | Flyback | 9V ~ 20V | |
Texas Instruments
|
59
|
Price on request
59
|
Soft Start, Sync | 99% | Current Limiting | 700kHz | No | Through Hole | -55°C ~ 150°C (TJ) | Isolated | - | 14-PDIP | Boost, Buck, Flyback, Forward | 9V ~ 15V | |
Power Integrations
|
59
|
Price on request
59
|
- | 78% | Current Limiting, Over Temperature, Over Voltage | 66kHz | Yes | Through Hole | -40°C ~ 150°C (TJ) | Isolated | 48 W | 8-PDIP-C | Flyback | 700V | |
Power Integrations
|
58
|
Price on request
58
|
Frequency Control | 78% | Current Limiting, Over Temperature, Over Voltage | 66kHz ~ 132kHz | Yes | Through Hole | -40°C ~ 150°C (TJ) | Isolated | 50 W | TO-220-7B | Flyback | 700V | |
|
Power Integrations
|
50
|
Price on request
50
|
- | 67% | Current Limiting, Over Temperature | 100kHz | Yes | Surface Mount | -40°C ~ 150°C (TJ) | Isolated | 30 W | 8-SMD | Boost, Buck, Flyback, Forward | 700V | |
|
Power Integrations
|
50
|
Price on request
50
|
- | 67% | Current Limiting, Over Temperature | 100kHz | Yes | Surface Mount | -40°C ~ 150°C (TJ) | Isolated | 15 W | 8-SMD | Boost, Buck, Flyback, Forward | 700V | |
On Semiconductor
|
50
|
Price on request
50
|
- | 68% | Current Limiting, Over Power, Over Temperature, Over Voltage, Short Circuit | 100kHz | Yes | Through Hole | -40°C ~ 125°C (TJ) | Isolated | 41 W | 7-PDIP | Flyback | 6.5V ~ 20V | |
|
Power Integrations
|
50
|
Price on request
50
|
- | 55% | Current Limiting, Open Loop, Over Temperature, Short Circuit | Up to 85kHz | Yes | Through Hole | -40°C ~ 150°C (TJ) | Isolated | 3.3 W | 8-PDIP-C | Flyback | 700V | |
On Semiconductor
|
50
|
Price on request
50
|
EN, Frequency Control, Soft Start, Sync | 50% | Current Limiting, Over Load, Over Power, Over Temperature, Over Voltage, Short Circuit | 20kHz ~ 750kHz | No | Surface Mount | -50°C ~ 150°C (TJ) | Isolated | - | 16-SOIC | Half-Bridge | 20V | |
On Semiconductor
|
50
|
Price on request
50
|
Soft Start | 77% | Current Limiting, Over Load, Over Temperature, Over Voltage | 67kHz | Yes | Through Hole | -25°C ~ 85°C (TA) | - | - | TO-220F-4L | Flyback, Forward | 8.8V ~ 30V | |
Power Integrations
|
48
|
Price on request
48
|
- | 60% | Current Limiting, Over Temperature, Over Voltage | 100kHz | Yes | Surface Mount | -40°C ~ 105°C (TA) | Isolated | 27 W | eSOP-R16B | Flyback | 725V | |
Unitrode
|
48
|
Price on request
48
|
Frequency Control | 99% | - | 1MHz | Yes | Through Hole | -55°C ~ 150°C (TJ) | Non-Isolated | - | 8-PDIP | Boost, Buck, Flyback, Forward | 8.3V ~ 12V | |
Power Integrations
|
46
|
Price on request
46
|
- | 99.9% | - | 140kHz | Yes | Through Hole | -40°C ~ 150°C (TJ) | Isolated | 78 W | eSIP-7C | Flyback, Step-Down (Buck), Step-Up (Boost) | 725V | |
|
On Semiconductor
|
45
|
Price on request
45
|
- | 77% | Current Limiting, Over Load, Over Temperature, Over Voltage, Short Circuit | 67kHz | Yes | Through Hole | -40°C ~ 125°C (TJ) | Isolated | 40 W | 8-DIP | Flyback | 7.7V ~ 26V | |
STMicroelectronics
|
29
|
Price on request
29
|
Soft Start | 60% | Current Limiting, Over Voltage | 10kHz ~ 100kHz | No | Through Hole | -20°C ~ 70°C (TA) | Isolated | 140 W | 16-DIP | - | 7.4V ~ 20V | |
|
Power Integrations
|
28
|
Price on request
28
|
- | 67% | Current Limiting, Over Temperature | 100kHz | Yes | Surface Mount | -40°C ~ 150°C (TJ) | Non-Isolated | 5 W | 8-SMD | Flyback | 700V | |
|
Power Integrations
|
24
|
Price on request
24
|
EN | 68% | Current Limiting, Over Temperature | 44kHz | Yes | Surface Mount | -40°C ~ 150°C (TJ) | Isolated | 4 W | 8-SMD | Flyback | 700V | |
|
Power Integrations
|
23
|
Price on request
23
|
- | 64% | Current Limiting, Over Load, Over Temperature, Over Voltage, Short Circuit | 120kHz ~ 136kHz | Yes | Through Hole | -40°C ~ 150°C (TJ) | Isolated | 88 W | eSIP-7C | Flyback | 725V | |
|
Power Integrations
|
16
|
Price on request
16
|
Frequency Control | 78% | Current Limiting, Over Load, Over Temperature, Over Voltage, Short Circuit | 66kHz, 132kHz | Yes | Through Hole | -40°C ~ 150°C (TJ) | Isolated | 190 W | eSIP-7C | Flyback | 725V | |
On Semiconductor
|
15
|
Price on request
15
|
- | - | Current Limiting, Over Load, Over Temperature, Over Voltage | - | No | Surface Mount | -40°C ~ 125°C (TJ) | Isolated | - | 14-SOIC | Flyback | 10V ~ 28V | |
|
On Semiconductor
|
15
|
Price on request
15
|
Soft Start | - | Current Limiting, Over Load, Over Power, Over Voltage, Short Circuit | 60kHz | Yes | Surface Mount | -40°C ~ 150°C (TJ) | Either | 7.2 W | 10-SOIC | Boost, Buck, Flyback, Forward | 8.4V ~ 9.5V | |
Vishay Dale
|
13
|
Price on request
13
|
- | 50% | - | 40kHz ~ 1MHz | No | Through Hole | -40°C ~ 85°C (TA) | Isolated | - | 16-PDIP | Flyback, Forward | 9.5V ~ 13.5V | |
|
Texas Instruments
|
12
|
Price on request
12
|
Frequency Control | 49% | Current Limiting | Up to 1MHz | No | Surface Mount | -40°C ~ 85°C (TA) | - | - | 8-SOIC | Boost, Flyback, Forward | 8.3V ~ 12V | |
Power Integrations
|
12
|
Price on request
12
|
Frequency Control | 78% | Current Limiting, Over Load, Over Temperature, Over Voltage, Short Circuit | 66kHz, 132kHz | Yes | Surface Mount | -40°C ~ 150°C (TJ) | Isolated | 73 W | 12-ESOP | Flyback | 725V | |
Power Integrations
|
11
|
Price on request
11
|
- | 67% | Current Limiting, Over Temperature | 100kHz | Yes | Through Hole | -40°C ~ 150°C (TJ) | Either | 150 W | TO-220-3 | Boost, Buck, Flyback, Forward | 700V | |
Analog Devices / Maxim Integrated
|
10
|
Price on request
10
|
- | - | - | 500Hz ~ 150KHz | No | Surface Mount | -40°C ~ 125°C | Isolated | - | 16-MSOP-EP | Flyback | 10V ~ 38V | |
|
On Semiconductor
|
6
|
Price on request
6
|
Frequency Control, Soft Start | 90% | Current Limiting | 1MHz | No | Through Hole | 0°C ~ 70°C (TA) | Isolated | - | 16-PDIP | Forward | 8.4V ~ 30V | |
Power Integrations
|
5
|
Price on request
5
|
- | - | Current Limiting, Over Temperature, Over Voltage | 100kHz | Yes | Surface Mount | -40°C ~ 105°C (TA) | Isolated | 25 W | InSOP-24D | Flyback, Secondary Side SR | 725V | |
Power Integrations
|
5
|
Price on request
5
|
Frequency Control | 66.5% | Current Limiting, Over Temperature, Over Voltage | 66kHz ~ 132kHz | Yes | Through Hole | -40°C ~ 150°C (TJ) | Isolated | 45 W | TO-262-7C | Flyback | 700V | |
|
Microchip Technology
|
2
|
Price on request
2
|
Frequency Control | 48% | Current Limiting | 100Hz ~ 500kHz | No | Through Hole | -55°C ~ 125°C (TA) | Isolated | - | 8-CDIP | - | 10V ~ 30V | |
|
Power Integrations
|
2
|
Price on request
2
|
- | 69% | Current Limiting, Open Loop, Over Temperature, Short Circuit | 66kHz | Yes | Through Hole | -40°C ~ 150°C (TJ) | Non-Isolated | - | 8-PDIP-B | Buck, Buck-Boost, Flyback | 700V | |
Unitrode
|
2
|
Price on request
2
|
Frequency Control, Sync | 49% | - | 1MHz | No | Surface Mount | -40°C ~ 85°C (TA) | Isolated | - | 16-SOIC | Boost, Buck, Flyback, Forward | 8.3V ~ 11V | |
On Semiconductor
|
Send RFQ |
Price on request
Price and Stock
on Request Send RFQ |
- | 80% | Over Load, Over Power, Over Temperature, Over Voltage | 65kHz | No | Surface Mount | -40°C ~ 150°C (TJ) | Isolated | - | 7-SOIC | Flyback | 10.5V ~ 28V | |
ROHM Semiconductor
|
Send RFQ |
Price on request
Price and Stock
on Request Send RFQ |
- | 75% | Current Limiting, Over Voltage | 100kHz | No | Surface Mount | -40°C ~ 85°C (TA) | Either | - | 8-SOP-J | Flyback | 8.9V ~ 26V | |
Fremont Micro Devices Ltd
|
Send RFQ |
Price on request
Price and Stock
on Request Send RFQ |
- | - | Current Limiting, Open Circuit, Over Temperature, Over Voltage | - | No | Surface Mount | -40°C ~ 125°C (TA) | Isolated | 18 W | SOT-23-5 | Flyback | 6.6V ~ 30V | |
|
Power Integrations
|
Send RFQ |
Price on request
Price and Stock
on Request Send RFQ |
EN | 65% | Current Limiting, Open Loop, Over Temperature, Over Voltage, Short Circuit | 132kHz | Yes | Through Hole | -40°C ~ 150°C (TJ) | Isolated | 32 W | 8-PDIP-C | Flyback | 700V | |
|
ROHM Semiconductor
|
Send RFQ |
Price on request
Price and Stock
on Request Send RFQ |
- | 75% | Current Limiting, Over Voltage | 65kHz | No | Surface Mount | -40°C ~ 85°C (TA) | Either | - | 8-SOP-J | Flyback | 8.9V ~ 26V | |
NXP Semiconductors
|
Send RFQ |
Price on request
Price and Stock
on Request Send RFQ |
- | 90% | Over Power, Over Temperature, Over Voltage, Short Circuit | 36kHz ~ 130kHz | No | Surface Mount | -40°C ~ 150°C (TJ) | Isolated | - | SC-74 | Flyback | 10.5V ~ 36V | |
Fremont Micro Devices Ltd
|
Send RFQ |
Price on request
Price and Stock
on Request Send RFQ |
- | - | Current Limiting, Open Circuit, Over Temperature, Over Voltage | - | No | Surface Mount | -40°C ~ 125°C (TA) | Isolated | 18 W | SOT-23-5 | Flyback | 6.6V ~ 30V | |
|
Power Integrations
|
Send RFQ |
Price on request
Price and Stock
on Request Send RFQ |
- | 64% | Current Limiting, Over Load, Over Temperature, Over Voltage, Short Circuit | 120kHz ~ 136kHz | Yes | Through Hole | -40°C ~ 150°C (TJ) | Isolated | 153 W | eSIP-7C | Flyback | 650V | |
|
Power Integrations
|
Send RFQ |
Price on request
Price and Stock
on Request Send RFQ |
EN | 67% | Current Limiting, Open Loop, Over Temperature, Over Voltage, Short Circuit | 124kHz ~ 140kHz | Yes | Through Hole | -40°C ~ 150°C (TJ) | Isolated | 18 W | 8-PDIP-C | Flyback | 725V | |
|
ROHM Semiconductor
|
Send RFQ |
Price on request
Price and Stock
on Request Send RFQ |
- | 75% | Current Limiting, Over Voltage | 100kHz | No | Surface Mount | -40°C ~ 85°C (TA) | Either | - | 8-SOP-J | Flyback | 8.9V ~ 26V | |
|
ROHM Semiconductor
|
Send RFQ |
Price on request
Price and Stock
on Request Send RFQ |
- | 75% | Current Limiting, Over Voltage | 65kHz | No | Surface Mount | -40°C ~ 85°C (TA) | Either | - | 8-SOP-J | Flyback | 8.9V ~ 26V | |
NXP Semiconductors
|
Send RFQ |
Price on request
Price and Stock
on Request Send RFQ |
- | 75% | Over Temperature, Over Voltage, Short Circuit | 22.5kHz ~ 50.5kHz | Yes | Surface Mount | -40°C ~ 150°C (TJ) | - | 5 W | 7-SOIC | Flyback | 8.5V ~ 35V | |
|
Renesas
|
Send RFQ |
Price on request
Price and Stock
on Request Send RFQ |
- | - | Current Limiting, Over Temperature, Over Voltage, Short Circuit | 89kHz | No | Surface Mount | -40°C ~ 150°C (TJ) | Isolated | 10 W | SOT-23-6 | Flyback | 25V |
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