AC DC Converters

Image Part Number Description / PDF Quantity Rfq
KMS40-9

KMS40-9

TDK-Lambda, Inc.

AC/DC CONVERTER 9V 40W

0

KAS4-5

KAS4-5

TDK-Lambda, Inc.

AC/DC CONVERTER 5V 4W

63

KWS25A-24

KWS25A-24

TDK-Lambda, Inc.

AC/DC CONVERTER 24V 25W

180

KMS40-5

KMS40-5

TDK-Lambda, Inc.

AC/DC CONVERTER 5V 40W

86

KMD40-1212

KMD40-1212

TDK-Lambda, Inc.

AC/DC CONVERTER +/-12V 40W

293

PFE300SA12

PFE300SA12

TDK-Lambda, Inc.

AC/DC CONVERTER 12V 300W

0

PFE1000FA-48/T

PFE1000FA-48/T

TDK-Lambda, Inc.

AC/DC CONVERTER 48V 1008W

551222

KMS15-9

KMS15-9

TDK-Lambda, Inc.

AC/DC CONVERTER 9V 15W

0

KMD40-1515

KMD40-1515

TDK-Lambda, Inc.

AC/DC CONVERTER +/-15V 40W

144

KPSA103R3

KPSA103R3

TDK-Lambda, Inc.

AC/DC CONVERTER 3.3V 10W

0

KMS40-15

KMS40-15

TDK-Lambda, Inc.

AC/DC CONVERTER 15V 40W

6

KAS4-24

KAS4-24

TDK-Lambda, Inc.

AC/DC CONVERTER 24V 4W

31

KPSA512

KPSA512

TDK-Lambda, Inc.

AC/DC CONVERTER 12V 5W

180

KWS10A-12

KWS10A-12

TDK-Lambda, Inc.

AC/DC CONVERTER 12V 10W

120

KPSA55

KPSA55

TDK-Lambda, Inc.

AC/DC CONVERTER 5V 5W

136

PFH500F-28-100-R

PFH500F-28-100-R

TDK-Lambda, Inc.

AC/DC CONVERTER 28V 504W

19

KAS4-3P3

KAS4-3P3

TDK-Lambda, Inc.

AC/DC CONVERTER 3.3V 4W

9

CUS30M15/P

CUS30M15/P

TDK-Lambda, Inc.

AC/DC CONVERTER 15V 30W

3

KMD15-55

KMD15-55

TDK-Lambda, Inc.

AC/DC CONVERTER +/-5V 15W

78

KMS15A-9

KMS15A-9

TDK-Lambda, Inc.

AC/DC CONVERTER 9V 15W

48

AC DC Converters

1. Overview

Board mount AC DC converters are electronic devices that convert alternating current (AC) from mains power to direct current (DC) at required voltage levels. These components are critical in modern electronics, enabling power supply to printed circuit boards (PCBs) across diverse applications. They ensure safe voltage transformation, electrical isolation, and stable power delivery in compact form factors.

2. Main Types & Functionality

TypeFunctional CharacteristicsApplication Examples
Isolated AC-DC ConvertersProvide galvanic isolation between input and output circuitsMedical equipment, industrial controllers
Non-Isolated AC-DC ConvertersDirect connection between input and output with shared groundConsumer electronics, LED lighting
Modular AC-DC ConvertersStandardized footprints with integrated EMI filteringTelecom infrastructure, test equipment

3. Structure & Components

Typical construction includes: - Die-cast aluminum housing with heat dissipation fins - PCB assembly with bridge rectifier, PFC circuitry, and switching MOSFETs - Transformer for voltage conversion and isolation - Output capacitors and voltage regulation ICs - Safety-certified insulation barriers between primary/secondary sides

4. Key Technical Parameters

ParameterDescription & Importance
Input Voltage Range90-264VAC (global compatibility)
Output Power3-500W (determines load capacity)
Efficiency85-94% (impacts thermal management)
Isolation Voltage1500-3000VAC (safety compliance)
Operating Temperature-40 C to +85 C (environmental reliability)

5. Application Fields

Key industries include: - Industrial automation (PLC systems, motor drives) - Medical devices (patient monitors, diagnostic equipment) - IT infrastructure (servers, data storage) - Smart home systems (HVAC controllers, security devices) - Renewable energy systems (solar inverters, battery storage)

6. Leading Manufacturers

ManufacturerRepresentative Product
TDK-LambdaDRB-25-24 (25W medical-grade converter)
Mean WellIRM-10-05 (10W industrial power supply)
CUI IncPBO-10-12 (10W open-frame converter)
RECOM PowerRAC05-05SK/277 (5W industrial converter)

7. Selection Guidelines

Key considerations: - Match input/output requirements with system specifications - Verify safety certifications (UL, CE, IEC60601) - Evaluate thermal management needs - Consider PCB layout constraints - Balance cost vs reliability requirements

8. Industry Trends

Emerging developments: - Increased efficiency targets (>94%) through GaN/SiC technology - Miniaturization with planar magnetics integration - Smart converters with digital monitoring interfaces - Enhanced EMC performance for IoT applications - Energy harvesting compatibility in low-power designs

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