ASIA ELECTRONICS IND.CO.
ASIA ELECTRONICS BHU SERIES DC-DC CONVERTERS

Manufacturer: ASIA ELECTRONICS
Model: BHU Series
Features
- Low Profile 8.5mm
- Built-in Input Filter
- Input-Output Isolation
- High Efficiency 77〜88%
- Wide Input Voltage Range
- High Reliability
- 6 Sided Metal Shielding
- Remote ON/OFF Control
- Adjustable Output Volt. ±5%
- Output Over Voltage Protection 115〜140% Operation
- Operating Ambient Temperature −40℃〜+85℃
- Max. Case Temperature+105℃
- Conformty to RoHS2 Directive
- Not built-in aluminum and tantalum electrolytic capacitor
Specifications
◆General Characteristics
Input Voltage, Range | DC12, 24, 48, 100, 140V (See Table 1) (at Ta: 25℃, Full Load, Nominal Vin) |
Output Voltage, Current | See Table 1 |
Output Voltage Range | ±5% Adjustable |
Efficiency | See Table 1 |
Line Regulation | ±0.3% max. (at Vin Range) |
Load Regulation | ±0.5% max. |
±1% max. | (3.3, 5V Output only) (0~100% Load) |
Reflected Input Ripple, Noise | (5% Vin) Vp-p max. |
Output Ripple | 40mVp-p max. |
Output Noise | 0.5% typ. (output ±100mV) p-p max. |
Short Circuit Protection | Built-in, Auto-restart (See Fig. 2) |
Over Voltage Protection | 115%~140% Output Voltage |
Temperature Coefficient | 0.02%/°C max. |
Operating Ambient Temp. | −40°C to +85°C (See Fig. 1) |
Max. Case Temperature | +105°C |
Storage Temperature | −55°C to +125°C |
Isolation Voltage | AC2000V one minute |
(Input-Output-Case) | |
Isolation Impedance | 100MΩ min. (at DC1000V) (Input-Output-Case) |
Weight | 35g max. |
Humidity | 20~95% RH |
Shock | 490m/s² (11msec 3 directions) |
Vibration | 10~55Hz 98m/s² (30 minutes 3 directions) |
Surface Structure | Aluminum Case |
MTBF | 400,000H (Ta: 25℃, 80% Load, Nominal Vin) |
Warranty | 5 years |
◆Pin Outs & Dimensions (±0.5mm)
Single Output | Dual Outputs | ||
---|---|---|---|
① | +Vdc in | ① | +Vdc in |
② | 0 Vdc in | ② | 0 Vdc in |
③ | ON/OFF Control | ③ | ON/OFF Control |
④ | +Vdc out | ④ | +Vdc out |
⑤ | 0 Vdc out | ⑤ | Common |
⑥ | No Connection | ⑥ | −Vdc out |
◆Holes on PCB (Top View)
◆Option Heat Sink
◆ Block Diagram
◆ Selection Guide
Model Number | Input Volt. (Range) (V. DC) | Output Voltage (V. DC) | Output Current (A) | Efficiency (Typical) (%) |
---|---|---|---|---|
BHU 5 – 3.3 S 2A | 5 (4.5~9) | 3.3 | 2 | 83 |
BHU 5 – 5 S 2A | 5 | 2 | 82 | |
BHU 5 – 6 S 1.8A | 6 | 1.8 | 82 | |
BHU 5 – 12 S 1A | 12 | 1 | 84 | |
BHU 5 – 15 S 0.8A | 15 | 0.8 | 83 | |
BHU 5 – 24 S 0.5A | 24 | 0.5 | 83 | |
BHU 5 – 28 S 0.4A | 28 | 0.4 | 83 | |
BHU 5 – 5 D 1A | ±5 | ±1 | 77 | |
BHU 5 – 12 D 0.5A | ±12 | ±0.5 | 81 | |
BHU 5 – 15 D 0.4A | ±15 | ±0.4 | 81 | |
BHU12 – 3.3 S 2.4 A | 12 (8~18) | 3.3 | 2.4 | 83 |
BHU12 – 5 S 2.4 A | 5 | 2.4 | 85 | |
BHU12 – 6 S 2.2 A | 6 | 2.2 | 85 | |
BHU12 – 12 S 1.3 A | 12 | 1.3 | 85 | |
BHU12 – 15 S 1 A | 15 | 1 | 85 | |
BHU12 – 24 S 0.65 A | 24 | 0.65 | 85 | |
BHU12 – 28 S 0.5 A | 28 | 0.5 | 85 | |
BHU12 – 48 S 0.3 A | 48 | 0.3 | 85 | |
BHU12 – 5 D 1.2 A | ±5 | ±1.2 | 78 | |
BHU12 – 12 D 0.65 A | ±12 | ±0.65 | 83 | |
BHU12 – 15 D 0.5 A | ±15 | ±0.5 | 83 | |
BHU24-3.3S 2.4A | 24 (16~36) | 3.3 | 2.4 | 84 |
BHU24-5S 2.4A | 5 | 2.4 | 86 | |
BHU24-6S 2.2A | 6 | 2.2 | 86 | |
BHU24-12S 1.3A | 12 | 1.3 | 86 | |
BHU24-15S 1A | 15 | 1 | 86 | |
BHU24-24S 0.65A | 24 | 0.65 | 86 | |
BHU24-28S 0.5A | 28 | 0.5 | 86 | |
BHU24-48S 0.3A | 48 | 0.3 | 85 | |
BHU24-5D 1.2A | ±5 | ±1.2 | 78 | |
BHU24-12D 0.65A | ±12 | ±0.65 | 83 | |
BHU24-15D 0.5A | ±15 | ±0.5 | 83 | |
BHU48-3.3S 2.4A | 48 (32~76) | 3.3 | 2.4 | 83 |
BHU48-5S 2.4A | 5 | 2.4 | 86 | |
BHU48-6S 2.2A | 6 | 2.2 | 86 | |
BHU48-12S 1.3A | 12 | 1.3 | 88 | |
BHU48-15S 1A | 15 | 1 | 88 | |
BHU48-24S 0.65A | 24 | 0.65 | 86 | |
BHU48-28S 0.5A | 28 | 0.5 | 86 | |
BHU48-5D 1.2A | ±5 | ±1.2 | 80 | |
BHU48-12D 0.65A | ±12 | ±0.65 | 85 | |
BHU48-15D 0.5A | ±15 | ±0.5 | 85 |