DIB40 Series 40W DC-DC Converter – 8:1 Input Range, 2x1 Inch Isolated Module

DIB40 40W Isolated DC-DC Converter for Industrial & Telecom

40Watts 8:1 Input Range 2x1 Inch Isolated DC-DC Converter

DIB40 Series

Features an 8:1 ultra-wide input range

Achieves efficiency up to 92% with low no-load power consumption

2"x1" industrial package saves valuable space

Certified to IEC/UL/EN 62368-1 with 3000VDC isolation

Six-sided shielded copper case effectively blocks electromagnetic interference

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
DIB40-W48S03	48 VDC (9~75)	3.3 VDC	10A	10 mA	800mA	3.9 VDC	33W	87%	12000µF
DIB40-W48S05		5V DC	8A	10 mA	942mA	6.2 VDC	40W	89%	6000µF
DIB40-W48S12		12 VDC	3.33A	10 mA	915mA	15 VDC	40W	92%	2500µF
DIB40-W48S15		15 VDC	2.67A	10 mA	935mA	18 VDC	40W	90%	1000µF
DIB40-W48S24		24 VDC	1.67A	10 mA	942mA	28 VDC	40W	89%	440µF
DIB40-W48S48		48 VDC	0.83A	10 mA	930mA	56 VDC	40W	91%	220µF
DIB40-W48S54		54VDC	0.74A	10 mA	930mA	62 VDC	40W	91%	220µF

DIB

Series

Output Power

Input Range

Input Voltage

(Nom.)

Output Quantity

Output Voltage

Remote On/Off Logic

Heatsink

40: 40 Watts

W:Wide Input Voltage

48: 9 ~ 75V

S: Single

03: 3.3V

05: 5.0V

12: 12V

15: 15V

24: 24V

48: 48V

54: 54V

Blank:

Positive Logic

N: Negative Logic

Blank: No heatsink fitted

-H: Heatsink (Optional)

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 DIB40-W48S03 requires to add an 330uf E-Cap at the output terminal for more stable in output voltage. The DIB40-W48S05, DIB40-W48S12, and DIB40-W48S15 models require a 100uF E-Cap to stabilize the output terminal. The DIB40-W48S24, DIB40-W48S48, and DIB40-W48S54 models are not necessary required for E-Cap. Do not exceed maximum power specifications when adjusting the output voltage.

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

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

SPECIFICATIONS: DIB40 SERIES
All specifications are based on 25°C, Nominal Input Voltage, and Maximum Output Current unless otherwise noted. We reserve the right to change specifications based on technological advances. At least 330uF E-Cap is suggested to be added to the input terminal to stabilize the input voltage source.
INPUT
Specification	Conditions				Min	Typ		Max	Unit
Input Voltage Range	48Vin(Nominal)				9	48		75	VDC
Input Surge Voltage (100ms max.)					---	---		100	VDC
Start-up Threshold Voltage					8.2	8.5		8.7	VDC
Under Voltage Lockout(UVLO)					7	7.5		8	VDC
Input Current					See model selection table
Input filter					Pi network filter
OUTPUT
Specification	Conditions				Min	Typ		Max	Unit
Output Voltage					See Table
Line Regulation	Low line to high line at full load				-1	---		+1	%Vo
Load Regulation	Vin=48V, 25-100% of lo				-1	---		+1	%Vo
Output Voltage Setting Accuracy	Vin=48V, max lo				-1	---		+1	%Vo
Output Voltage Trim					-10	---		+10	%Vo
Output Power					See model selection table
Output Current					See model selection table
Minimum Load					No minimum load required
Ripple & Noise ^{(Note 1)}	Vin=48V, max lo. Measured by 20MHz bandwidth with 1uF ceramic cap. and 10uF tantalum cap.(or ceramic 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
Transient Recovery Time	50% - 75% of lo, di/dt=0.1A/us				---	300		500	us
Transient Recovery Deviation					---	±3		±5	%Vo
NOTE 1: For 48V and 54V output models, add 1uF ceramic cap. and 10uF MLCC(ESR≦2mΩ @200kHz) .
PROTECTION
Specification		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 SPECIFICATIONS
Specification		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
Specification		Conditions			Min	Typ	Max	Unit
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	---	mA
ENVIRONMENTAL SPECIFICATIONS
Specification		Conditions			Min	Typ	Max	Unit
Operating Temperature		With derating		All models	-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	Criteria A
	Fast Transient	EN61000-4-4 ±2KV	Criteria A
	Surge	EN61000-4-5 ±1KV	Criteria A
	Conducted Immunity	EN61000-4-6 10V/m	Criteria A

MECHANICAL DRAWINGS

STANDARD MODELS

Pin connections
PIN	Function
1	+Vin
2	-Vin
3	REMOTE ON/OFF
4	+Vout
5	-Vout
6	Trim

Unit: mm(Inches)

Tolerance: x.x ±1.0 (x.xx ±0.04)

x.xx ±0.5 (x.xxx ±0.02)

Pin length tolerance: ±0.5 (±0.02)

Case Size: 50.8 x 25.4 x 11.4 mm (2.00 x 1.00 x 0.45 inches)

Case Material: Copper

Base Material: FR4 PCB

Pin Material: Copper alloy

Plating treatment of Pin : Matte Tin Plating and

Nickel under Plating

Weight: 36g (1.27oz)

STANDARD PCB LAYOUT

* Recommended Pad and Hole dia. (TOP VIEW)

* Unit : 0.1inch

* Dimension : mm

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
DIB40-W48S03	48 VDC (9~75)	3.3 VDC	10A	10 mA	800mA	3.9 VDC	33W	87%	12000µF
DIB40-W48S05		5V DC	8A	10 mA	942mA	6.2 VDC	40W	89%	6000µF
DIB40-W48S12		12 VDC	3.33A	10 mA	915mA	15 VDC	40W	92%	2500µF
DIB40-W48S15		15 VDC	2.67A	10 mA	935mA	18 VDC	40W	90%	1000µF
DIB40-W48S24		24 VDC	1.67A	10 mA	942mA	28 VDC	40W	89%	440µF
DIB40-W48S48		48 VDC	0.83A	10 mA	930mA	56 VDC	40W	91%	220µF
DIB40-W48S54		54VDC	0.74A	10 mA	930mA	62 VDC	40W	91%	220µF

The DIB40 Series delivers up to 40W of isolated DC-DC power with wide 9~75VDC input range and high efficiency up to 91%. Designed for industrial applications, this series combines safety, compactness, and thermal performance in one robust solution.

Key Highlights

Wide input range (18–75VDC) for versatile applications
High efficiency up to 91%
3000VDC isolation for superior safety
Compact 2” × 1” industry package saves board space
Low no-load consumption extends battery life
Six-sided shielding copper case reduces radiated noise

Model Selection Overview

3.3V / 10A / 33W / 87% efficiency / up to 12,000µF capacitive load
5V / 8A / 40W / 89% efficiency / up to 6,000µF capacitive load
12V / 3.33A / 40W / 92% efficiency / up to 2,500µF capacitive load
15V / 2.66A / 40W / 90% efficiency / up to 1,000µF capacitive load
24V / 1.67A / 40W / 89% efficiency / up to 440µF capacitive load
48V / 0.83A / 40W / 91% efficiency / up to 220µF capacitive load
54V / 0.74A / 40W / 91% efficiency / up to 220µF capacitive load

DIB40 Series | 40W DC-DC Converter with 8:1 Input Range and High Isolation for Industrial Applications

The DIB40 Series DC-DC converter from ABES delivers up to 40W of reliable power in a compact 2 × 1 industry-standard package, ideal for space-constrained industrial and embedded systems.

Featuring an 8:1 ultra-wide input voltage range and efficiency up to 92%, the DIB40 minimizes energy loss, extends battery life, and ensures stable power conversion in demanding environments.

Its six-sided shielded copper case provides excellent thermal performance, EMI suppression, and low radiated noise, supporting interference-free operation for sensitive electronics.

With 3000VDC I/O isolation and full compliance to IEC/UL/EN 62368-1 safety standards, the DIB40 Series guarantees safe and reliable operation.

Key benefits include:

Ultra-low no-load power consumption

Compact footprint for board space savings

High reliability in harsh industrial conditions

Ideal for industrial automation, test equipment, telecommunications, and embedded systems, the DIB40 Series is your next-generation DC-DC power solution for efficiency, safety, and design flexibility.

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