AC DC Converters

Image Part Number Description / PDF Quantity Rfq
KMS15-12

KMS15-12

TDK-Lambda, Inc.

AC/DC CONVERTER 12V 15W

213

CUS30M36/P

CUS30M36/P

TDK-Lambda, Inc.

AC/DC CONVERTER 36V 30W

4

PFE300SA48

PFE300SA48

TDK-Lambda, Inc.

AC/DC CONVERTER 48V 302W

22

KMS155

KMS155

TDK-Lambda, Inc.

AC/DC CONVERTER 5V 15W

230

KPSA105

KPSA105

TDK-Lambda, Inc.

AC/DC CONVERTER 5V 10W

48

KMS60A-24

KMS60A-24

TDK-Lambda, Inc.

AC/DC CONVERTER 24V 60W

16

KWD15-1212

KWD15-1212

TDK-Lambda, Inc.

AC/DC CONVERTER +/-12V 15W

24

KPS53R3

KPS53R3

TDK-Lambda, Inc.

AC/DC CONVERTER 3.3V 5W

45

KMT15-51212

KMT15-51212

TDK-Lambda, Inc.

AC/DC CONVERTER 5V +/-12V 15W

55

KPS155

KPS155

TDK-Lambda, Inc.

AC/DC CONVERTER 5V 15W

12

PFE300SA12/T

PFE300SA12/T

TDK-Lambda, Inc.

AC/DC CONVERTER 12V 300W

9

KWS10-12

KWS10-12

TDK-Lambda, Inc.

AC/DC CONVERTER 12V 10W

0

KMS40-3P3

KMS40-3P3

TDK-Lambda, Inc.

AC/DC CONVERTER 3.3V 40W

1

KMS15A-15

KMS15A-15

TDK-Lambda, Inc.

AC/DC CONVERTER 15V 15W

67

KWS5A-5

KWS5A-5

TDK-Lambda, Inc.

AC/DC CONVERTER 5V 5W

98

KWS25A-15

KWS25A-15

TDK-Lambda, Inc.

AC/DC CONVERTER 15V 25W

5

KAS4-12

KAS4-12

TDK-Lambda, Inc.

AC/DC CONVERTER 12V 4W

0

KMS15-15

KMS15-15

TDK-Lambda, Inc.

AC/DC CONVERTER 15V 15W

19

KWS15A-15

KWS15A-15

TDK-Lambda, Inc.

AC/DC CONVERTER 15V 15W

15

KWS15A-5

KWS15A-5

TDK-Lambda, Inc.

AC/DC CONVERTER 5V 15W

97

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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