DIB50 Series 50W DC-DC Converter – 4:1 Input Range, 2x1 Inch Isolated Module

DIB50 50W Isolated DC-DC Converter for Industrial & Telecom

50Watts 4:1 Input Range 2x1 Inch Isolated DC-DC Converter

DIB50 Series

Features a 4:1 wide input range, suitable for diverse applications

Achieves 92% efficiency with low no-load power consumption for energy savings

Uses a 2"x1" industrial package with a six-sided shielding copper case

Certified to IEC/UL/EN 62368-1 and provides 3000VDC isolation, ensuring high reliability

ABES technology co., ltd.

MODEL SELECTION TABLE
Model Number	Input Voltage	Output Voltage	Output Current	Input Current		Over Voltage Protection (typ.)	Output Power	Efficiency (typ.)	Maximum Capacitive Load
Model Number	Input Voltage	Output Voltage	Output Current	No Load	Max Load	Over Voltage Protection (typ.)	Output Power	Efficiency (typ.)	Maximum Capacitive Load
DIB50-F24S03	24 VDC (9~36)	3.3 VDC	12.12A	12 mA	1950mA	3.9 VDC	40W	86%	12000μF
DIB50-F24S05		5V DC	9A		2110mA	6.2 VDC	45W	89%	6000μF
DIB50-F24S12		12 VDC	4.16A		2280mA	15 VDC	50W	92%	3000μF
DIB50-F24S15		15 VDC	3.33A		2300mA	18 VDC	50W	91%	1000μF
DIB50-F24S24		24 VDC	2.08A		2320mA	28 VDC	50W	90%	440μF
DIB50-F24S48		48 VDC	1.04A		2300mA	56 VDC	50W	91%	220μF
DIB50-F24S54		54 VDC	0.926A		2300mA	62 VDC	50W	91%	220μF
DIB50-F48S03	48 VDC (18~75)	3.3 VDC	12.12A	9 mA	970mA	3.9 VDC	40W	87%	12000μF
DIB50-F48S05		5 VDC	9A		1050mA	6.2 VDC	45W	90%	6000μF
DIB50-F48S12		12 VDC	4.16A		1140mA	15 VDC	50W	92%	3000μF
DIB50-F48S15		15 VDC	3.33A		1150mA	18 VDC	50W	91%	1000μF
DIB50-F48S24		24 VDC	2.08A		1160mA	28 VDC	50W	90%	440μF
DIB50-F48S48		48 VDC	1.04A		1150mA	56 VDC	50W	91%	220μF
DIB50-F48S54		54 VDC	0.926A		1150mA	62 VDC	50W	91%	220μF

INPUT
Item	Conditions	Min	Typ	Max	Unit
Input Voltage Range	24VDC Nominal input models	9	24	36	VDC
Input Voltage Range	48VDC Nominal input models	18	48	75
Input Surge Voltage (100ms max.)	24VDC Nominal input models			50
Input Surge Voltage (100ms max.)	48VDC Nominal input models			100
Start-up Threshold Voltage	24VDC Nominal input models	8.2	8.5	8.7
Start-up Threshold Voltage	48VDC Nominal input models	16.4	16.7	17
Under Voltage Lockout(UVLO)	24VDC Nominal input models	7	7.5	8
Under Voltage Lockout(UVLO)	48VDC Nominal input models	15	15.5	16
Input Current	See model selection table
Input filter	Pi network filter

OUTPUT
Item	Conditions		Min	Typ	Max	Unit
Output Voltage	See Table
Line Regulation	Low line to high line at full load		-1		+1	%Vo
Load Regulation	25-100% of lo		-1		+1	%Vo
Output Voltage Setting Accuracy	max lo		-1		+1	%Vo
Output Voltage Trim			-10		+10	%Vo
Ripple & Noise	At full load, nominal input Measured 20MHz bandwidth with 1uF ceramic cap. and 10uF E-cap. Connected to the output pins.	3.3VDC output			30	mV
		5VDC output			50
		12VDC output			120
		15VDC output			150
		24VDC output			240
		48VDC output			480
		54VDC output			540
Output Power	See model selection table
Output Current	See model selection table
Minimum Load	No minimum load required
Transient Recovery Time	50% - 75% of lo, di/dt=0.1A/us			300	500	us
Transient Recovery Deviation				±3	±5	%Vo

PROTECTION
Item	Conditions	Min	Typ		Max		Unit
Output Over Voltage Protection	Zener diode clamp	See model selection table
Over Current Protection	% of Io rated; Hiccup mode	130			180		%Io
Thermal Protection			110				°C
Short Circuit Protection	Short +Vo to VO	Auto recovery
GENERAL
Item	Conditions	Min		Typ		Max	Unit
Efficiency		See model selection table
Switching Frequency				220			KHz
Isolation Voltage	Input to Output, 60 Sec					3000	VDC
Isolation Resistance	500VDC	100					M Ohm
Isolation Capacitance				1			nF
Maximum Capacitive Load		See model selection table

REMOTE ON/OFF
Item	Conditions
Positive Logic	Referred to - Vin pin		Converter On	open circuit or 2.5 ~ 12VDC
			Converter Off	Short circuit or 0 ~ 0.8VDC
Negative Logic			Converter On	Short circuit or 0 ~ 0.8VDC
			Converter Off	open circuit or 2.5 ~ 12VDC
Control Input Current	On	Vctrl = 5.0V			0.5	mA
	Off	Vctrl = 0V			-0.5
Stand-by Input idle Current	Nominal Vin				6.5

ENVIRONMENT
Item	Conditions	Min	Typ	Max	Unit
Operating Temperature	With derating	-40		105	°C
Case Temperature				105	°C
Storage Temperature		-55		125	°C
Humidity (non-condensing)				95	% RH
RFI		Six-sided shielding, metal case
Cooling	Natural convection is about 20LFM but is not equal to still air (0LFM)	Natural convection
Lead Temperature	1.5mm from case for 10 seconds			260	°C

PHYSICAL SPECIFICATIONS
Weight	36g (1.27oz)
Dimension (L x W x H)	2.00 x 1.00 x 0.45 inches (50.8 x 25.4 x 11.43 mm)
Case Material	Copper
Base Material	FR4 PCB (Flammability to UL 94V-0 rated)
Pin Material	Copper alloy

SAFETY & EMC
Safety Approvals	UL/cUL 62368-1 (CSA certificate) ; IEC/EN 62368-1 (CB-report)
EMI (external circuit required )	EN55032, FCC part 15 Class A
EMS (external circuit required	ESD	EN61000-4-2 Air:±8KV ; Contact:±6KV	Criteria A
	Radiated Immunity	EN61000-4-3 10V/m
	Fast Transient	EN61000-4-4 ±2KV
	Surge	EN61000-4-5 ±1KV
	Conducted Immunity	EN61000-4-6 10V/m

NOTES

1. Transient recovery time is measured to within 1% error band for a step change in output load from 50% to 75%.

2. This power module is not internally fused. We recommend protecting the converter by a slow blow fuse in the input supply line.

3. To meet EN61000-4-4 & EN61000-4-5 an external capacitor across the input pins is required. Suggested capacitor 330μF/100v.

4. The purpose for more stable at the output terminal, the output voltage of 3.3VDC requires to add an 330uf E-Cap.The output voltage of 5VDC, 12VDC and 15VDC require a 100uF E-Cap to stabilize the output terminal. The output voltage of 24VDC, 48VDC and 54VDC are not necessary required for E-Cap.

5. Do not exceed maximum power specifications when adjusting the output voltage.

6. This product is listed to applicable standards and requirements by UL.

Due to advances in technology, specifications subject to change without notice.

ABES technology co., ltd.

MODEL SELECTION TABLE
Model Number	Input Voltage	Output Voltage	Output Current	Input Current		Over Voltage Protection (typ.)	Output Power	Efficiency (typ.)	Maximum Capacitive Load
Model Number	Input Voltage	Output Voltage	Output Current	No Load	Max Load	Over Voltage Protection (typ.)	Output Power	Efficiency (typ.)	Maximum Capacitive Load
DIB50-F24S03	24 VDC (9~36)	3.3 VDC	12.12A	12 mA	1950mA	3.9 VDC	40W	86%	12000μF
DIB50-F24S05		5V DC	9A		2110mA	6.2 VDC	45W	89%	6000μF
DIB50-F24S12		12 VDC	4.16A		2280mA	15 VDC	50W	92%	3000μF
DIB50-F24S15		15 VDC	3.33A		2300mA	18 VDC	50W	91%	1000μF
DIB50-F24S24		24 VDC	2.08A		2320mA	28 VDC	50W	90%	440μF
DIB50-F24S48		48 VDC	1.04A		2300mA	56 VDC	50W	91%	220μF
DIB50-F24S54		54 VDC	0.926A		2300mA	62 VDC	50W	91%	220μF
DIB50-F48S03	48 VDC (18~75)	3.3 VDC	12.12A	9 mA	970mA	3.9 VDC	40W	87%	12000μF
DIB50-F48S05		5 VDC	9A		1050mA	6.2 VDC	45W	90%	6000μF
DIB50-F48S12		12 VDC	4.16A		1140mA	15 VDC	50W	92%	3000μF
DIB50-F48S15		15 VDC	3.33A		1150mA	18 VDC	50W	91%	1000μF
DIB50-F48S24		24 VDC	2.08A		1160mA	28 VDC	50W	90%	440μF
DIB50-F48S48		48 VDC	1.04A		1150mA	56 VDC	50W	91%	220μF
DIB50-F48S54		54 VDC	0.926A		1150mA	62 VDC	50W	91%	220μF

The DIB50 Series offers up to 50W of output power with outstanding efficiency (up to 92%) in a compact 2" × 1" package. With its wide 8:1 input range (9~75VDC), 3000VDC isolation, and comprehensive protection features, the DIB50 is the ideal solution for demanding industrial applications.

Key Advantages

Wide input range for versatile applications (24VDC: 9–36V / 48VDC: 18–75V)

High efficiency up to 92% for reliable power performance

Compact design with low no-load consumption

Over-voltage protection for enhanced safety

High capacitive load capability (up to 12,000µF)

Model Selection Overview

24VDC Input Models (9–36V):

48VDC Input Models (18–75V):

DIB50 Series | 50W DC-DC Converter with 4:1 Input Range and High Efficiency for Industrial Applications

The ABES DIB50 Series DC-DC converter delivers up to 50W of reliable power in a compact 2 × 1 industry-standard package, making it ideal for space-constrained industrial and embedded systems.

Featuring a 4:1 ultra-wide input voltage range and efficiency up to 92%, the DIB50 minimizes energy loss, extends battery life, and supports sustainable power conversion.

Its six-sided shielding copper case ensures excellent thermal management, EMI suppression, and low radiated noise, helping maintain signal integrity and system stability.

With 3000VDC I/O isolation and full compliance to IEC/UL/EN 62368-1 safety standards, the DIB50 Series guarantees safe and reliable operation in industrial automation, test equipment, telecommunications, and embedded applications.

Choose the DIB50 Series for higher efficiency, safer operation, longer battery life, and a smaller footprint—your next-generation DC-DC power solution.

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