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

Manufacturer: ASIA ELECTRONICS
Model: BTM Series
Features
- Low Profile 12.8mm
- Built-in Input Filter
- Input-Output Isolation
- High Efficiency 88~91%
- Wide Input Voltage Range
- High Reliability
- 6 Sided Metal Shielding
- Remote ON/OFF Control
- Adjustable Output Voltage ±5%
- Input Low Voltage Protection
- Input Over Voltage Protection
- Output Over Voltage Protection 115~140% Operation
- Thermal Protection +110℃~+120℃
- Operating Ambient Temperature -40℃~+85℃
- Max. Case Temperature +105℃
- Conformity to RoHS2 Directive
- Not built-in aluminum and tantalum electrolytic capacitor
Specifications
◆ General Characteristics
| Input Voltage, Range | DC12, 24, 48, 100V (See Table 1) |
| 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. (0–100% Load) |
| Reflected Input Ripple, Noise | (3% Vin) Vpp max. |
| Output Ripple | 40mVpp max. |
| Output Noise | 100mVpp max. |
| Short Circuit Protection | Built-in, Auto-restart (See Fig. 2) |
| Over Voltage Protection | 115%–140% Output Voltage |
| Remote ON/OFF Control | ON: Short or 0–0.8V OFF: Open or 2–10V (Between terminal ② and ③) |
| 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 | AC1500V 1 min. (Input–Output–Case) AC2000V 1 min. (100V Vin only) |
| Isolation Impedance | 100MΩ min. (at DC1000V) |
| Weight | Main Body: 170g max. Heat Sink: 73g |
| Humidity | 20–95% RH |
| Shock | 490m/s² (11msec 3 directions) |
| Vibration | 10–55Hz 98m/s² (30 minutes 3 directions) |
| Surface Structure | 6 Sided Aluminum Case |
| MTBF | 400,000H (Ta: 25°C, 80% Load, Nominal Vin) |
| Warranty | 5 years |
◆ Terminal Outs & Dimensions 
| Terminal Outs | |
|---|---|
| ① | + Vdc in |
| ② | 0 Vdc in |
| ③ | ON/OFF Control |
| ④ | + Vdc out |
| ⑤ | 0 Vdc out |
| ⑥ | No Connection |
◆ Option Heat Sink
◆ Selection Guide
| Model Number | Input Volt. (Range) (V. DC) | Output Voltage (V. DC) | Output Current (A) | Efficiency (Typical)(%) | |
|---|---|---|---|---|---|
| 20% Load | 80% Load | ||||
| BTM 12–3.3S 24 A | 12 (8~18) | 3.3 | 24 | 88 | 88 |
| BTM 12–5S 20 A | 5 | 20 | 87 | 89 | |
| BTM 12–6S 16.7 A | 6 | 16.7 | 87 | 89 | |
| BTM 12–12S 8.4 A | 12 | 8.4 | 87 | 89 | |
| BTM 12–15S 6.7 A | 15 | 6.7 | 86 | 89 | |
| BTM 12–24S 4.2 A | 24 | 4.2 | 85 | 88 | |
| BTM 24–3.3S 24 A | 24 (16~36) | 3.3 | 24 | 88 | 88 |
| BTM 24–5S 20 A | 5 | 20 | 88 | 90 | |
| BTM 24–6S 16.7 A | 6 | 16.7 | 88 | 90 | |
| BTM 24–12S 8.4 A | 12 | 8.4 | 88 | 90 | |
| BTM 24–15S 6.7 A | 15 | 6.7 | 87 | 90 | |
| BTM 24–24S 4.2 A | 24 | 4.2 | 86 | 89 | |
| BTM 48–3.3S 24 A | 48 (32~72) | 3.3 | 24 | 89 | 89 |
| BTM 48–5S 20 A | 5 | 20 | 89 | 91 | |
| BTM 48–6S 16.7 A | 6 | 16.7 | 89 | 91 | |
| BTM 48–12S 8.4 A | 12 | 8.4 | 89 | 91 | |
| BTM 48–15S 6.7 A | 15 | 6.7 | 88 | 91 | |
| BTM 48–24S 4.2 A | 24 | 4.2 | 86 | 91 | |
| BTM100–3.3S 24 A | 100 (64~144) | 3.3 | 24 | 88 | 88 |
| BTM100–5S 20 A | 5 | 20 | 87 | 89 | |
| BTM100–6S 16.7 A | 6 | 16.7 | 87 | 89 | |
| BTM100–12S 8.4 A | 12 | 8.4 | 87 | 89 | |
| BTM100–15S 6.7 A | 15 | 6.7 | 86 | 89 | |
| BTM100–24S 4.2 A | 24 | 4.2 | 86 | 89 | |












