40W 8:1 Input 2"x1" Isolated DC-DC Converter
DIB40 Series
Features an 8:1 ultra-wide input voltage range, suitable for highly versatile systems
Achieves high efficiency (up to 92%) and low no-load power consumption, maximizing energy savings
Uses a compact 2"x1" (50.8 x 25.4 mm) industrial package, saving valuable space
Equipped with a six-sided shielded copper case to effectively block electromagnetic interference (EMI)
Certified to IEC/UL/EN 62368-1 and provides 3000VDC I/O isolation, ensuring high reliability
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MODEL SELECTION TABLE |
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Model Number |
Input Voltage |
Output Voltage |
Output Current |
Input Current |
Over Voltage Protection (typ.) |
Output Power |
Efficiency (typ.) |
Maximum Capacitive Load |
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No Load |
Max Load |
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DIB40-W48S03 |
48 VDC (9~75) |
3.3 VDC |
10A |
10 mA |
800mA |
3.9 VDC |
33W |
87% |
12000μF |
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DIB40-W48S05 |
5V DC |
8A |
942mA |
6.2 VDC |
40W |
89% |
6000μF |
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DIB40-W48S12 |
12 VDC |
3.33A |
915mA |
15 VDC |
40W |
92% |
2500μF |
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DIB40-W48S15 |
15 VDC |
2.67A |
935mA |
18 VDC |
40W |
90% |
1000μF |
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DIB40-W48S24 |
24 VDC |
1.67A |
942mA |
28 VDC |
40W |
89% |
440μF |
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DIB40-W48S48 |
48 VDC |
0.83A |
930mA |
56 VDC |
40W |
91% |
220μF |
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DIB40-W48S54 |
54VDC |
0.74A |
930mA |
62 VDC |
40W |
91% |
220μF |
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Item |
Conditions |
Min |
Typ |
Max |
Unit |
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Input Voltage Range |
48Vin(Nominal) |
9 |
48 |
75 |
VDC |
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Input Surge Voltage (100ms max.) |
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100 |
VDC |
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Start-up Threshold Voltage |
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8.2 |
8.5 |
8.7 |
VDC |
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Under Voltage Lockout(UVLO) |
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7 |
7.5 |
8 |
VDC |
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Input Current |
See model selection table |
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Input filter |
Pi network filter |
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OUTPUT |
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Item |
Conditions |
Min |
Typ |
Max |
Unit |
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Output Voltage |
See Table |
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Line Regulation |
Low line to high line at full load |
-1 |
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+1 |
%Vo |
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Load Regulation |
Vin=48V, 25-100% of lo |
-1 |
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+1 |
%Vo |
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Output Voltage Setting Accuracy |
Vin=48V, max lo |
-1 |
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+1 |
%Vo |
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Output Voltage Trim |
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-10 |
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+10 |
%Vo |
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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 |
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30 |
mV |
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5VDC output |
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50 |
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12VDC output |
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120 |
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15VDC output |
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150 |
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24VDC output |
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240 |
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48VDC output |
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480 |
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54VDC output |
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540 |
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Output Power |
See model selection table |
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Output Current |
See model selection table |
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Minimum Load |
No minimum load required |
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Transient Recovery Time |
50% - 75% of lo, di/dt=0.1A/us |
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300 |
500 |
us |
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Transient Recovery Deviation |
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±3 |
±5 |
%Vo |
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NOTE 1: For 48V and 54V output models, add 1uF ceramic cap. and 10uF MLCC(ESR≦2mΩ @200kHz) . |
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PROTECTION |
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Item |
Conditions |
Min |
Typ |
Max |
Unit |
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Output Over Voltage Protection |
Zener diode clamp |
See model selection table |
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Over Current Protection |
% of Io rated; Hiccup mode |
130 |
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180 |
%Io |
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Thermal Protection |
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110 |
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°C |
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Short Circuit Protection |
Short +Vo to VO |
Auto recovery |
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GENERAL |
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Conditions |
Min |
Typ |
Max |
Unit |
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Efficiency |
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See model selection table |
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Switching Frequency |
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220 |
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KHz |
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Isolation Voltage |
Input to Output, 60 Sec |
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3000 |
VDC |
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Isolation Resistance |
500VDC |
100 |
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M Ohm |
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Isolation Capacitance |
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1 |
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nF |
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Maximum Capacitive Load |
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See model selection table |
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REMOTE ON/OFF |
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Item |
Conditions |
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Positive Logic |
Referred to - Vin pin |
Converter On |
open circuit or 2.5 ~ 12VDC |
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Converter Off |
Short circuit or 0 ~ 0.8VDC |
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Negative Logic |
Converter On |
Short circuit or 0 ~ 0.8VDC |
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Converter Off |
open circuit or 2.5 ~ 12VDC |
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Control Input Current |
On |
Vctrl = 5.0V |
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0.5 |
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mA |
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Off |
Vctrl = 0V |
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-0.5 |
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Stand-by Input idle Current |
Nominal Vin |
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6.5 |
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Item |
Conditions |
Min |
Typ |
Max |
Unit |
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Operating Temperature |
With derating |
-40 |
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105 |
°C |
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Case Temperature |
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105 |
°C |
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Storage Temperature |
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-55 |
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125 |
°C |
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Humidity (non-condensing) |
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95 |
% RH |
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RFI |
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Six-sided shielding, metal case |
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Cooling |
Natural convection is about 20LFM but is not equal to still air (0LFM) |
Natural convection |
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Lead Temperature |
1.5mm from case for 10 seconds |
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260 |
°C |
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Weight |
36g (1.27oz) |
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Dimension (L x W x H) |
2.00 x 1.00 x 0.45 inches (50.8 x 25.4 x 11.43 mm) |
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Case Material |
Copper |
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Base Material |
FR4 PCB (Flammability to UL 94V-0 rated) |
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Pin Material |
Copper alloy |
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SAFETY & EMC |
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Safety Approvals |
UL/cUL 62368-1 (CSA certificate) ; IEC/EN 62368-1 (CB-report) |
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EMI (external circuit required ) |
EN55032, FCC part 15 Class A |
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EMS (external circuit required |
ESD |
EN61000-4-2 Air:±8KV ; Contact:±6KV |
Criteria A |
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Radiated Immunity |
EN61000-4-3 10V/m |
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Fast Transient |
EN61000-4-4 ±2KV |
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Surge |
EN61000-4-5 ±1KV |
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Conducted Immunity |
EN61000-4-6 10V/m |
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MODEL SELECTION TABLE |
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Model Number |
Input Voltage |
Output Voltage |
Output Current |
Input Current |
Over Voltage Protection (typ.) |
Output Power |
Efficiency (typ.) |
Maximum Capacitive Load |
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|
No Load |
Max Load |
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DIB40-W48S03 |
48 VDC (9~75) |
3.3 VDC |
10A |
10 mA |
800mA |
3.9 VDC |
33W |
87% |
12000μF |
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DIB40-W48S05 |
5V DC |
8A |
942mA |
6.2 VDC |
40W |
89% |
6000μF |
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DIB40-W48S12 |
12 VDC |
3.33A |
915mA |
15 VDC |
40W |
92% |
2500μF |
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DIB40-W48S15 |
15 VDC |
2.67A |
935mA |
18 VDC |
40W |
90% |
1000μF |
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DIB40-W48S24 |
24 VDC |
1.67A |
942mA |
28 VDC |
40W |
89% |
440μF |
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DIB40-W48S48 |
48 VDC |
0.83A |
930mA |
56 VDC |
40W |
91% |
220μF |
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DIB40-W48S54 |
54VDC |
0.74A |
930mA |
62 VDC |
40W |
91% |
220μF |
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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
The DIB40 Series DC-DC converter from ABES delivers up to 40W of reliable power in a compact 2 × 1 (50.8 x 25.4 mm) 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.
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.
