ASIA ELECTRONICS IND.CO.
ASIA ELECTRONICS SQT SERIES DC-DC CONVERTERS
Manufacturer: ASIA ELECTRONICS
Model: SQT Series
Features
- Low Profile 8.5mm
- Built-in Input Filter
- Input-Output Isolation
- High Efficiency 80～85%
- Wide Input Voltage Range
- High Reliability
- Low No Load Current
- 5 Sided Metal Shielding
- Operating Ambient Temp. −40℃～＋85℃
- Max. Case Temperature ＋100℃
- Conformity 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 | − Vdc in | ② | − Vdc in |
| ③ | CNT | ③ | CNT |
| ④ | + Vdc out | ④ | + Vdc out |
| ⑤ | − Vdc out | ⑤ | COM |
| ⑥ | TRM | ⑥ | − Vdc out |
◆Application
ON/OFF Control and Vout Adjustment (Single Output)
| Vout (V) | VR (Ω) | Rx (Ω) |
|---|---|---|
| 3.3V | 50k | 13k |
| 5V | 50k | 3k |
| 5.2V | 50k | 3k |
| 6V | 50k | 6.8k |
| 12V | 50k | 43k |
| 15V | 50k | 62k |
| 24V | 50k | 150k |
◆ Holes on PCB (Top View)
◆Selection Guide
| Model Number | Input Volt. (Range) (V. DC) | Output Voltage (V. DC) | Output Current (A) | Efficiency 20% Load (typ.)(%) | Efficiency 80% Load (typ.)(%) |
|---|---|---|---|---|---|
| SQT 5－3.3S 3A | 5 (4.5～9) | 3.3 | 3 | 81 | 85 |
| SQT 5－5S 2.2A | 5 | 2.2 | 81 | 85 | |
| SQT 5－5.2S 2.1A | 5.2 | 2.1 | 81 | 85 | |
| SQT 5－6S 1.9A | 6 | 1.9 | 83 | 85 | |
| SQT 5－12S 1A | 12 | 1 | 84 | 85 | |
| SQT 5－15S 0.8A | 15 | 0.8 | 84 | 85 | |
| SQT 5－24S 0.5A | 24 | 0.5 | 84 | 85 | |
| SQT 5－12D 0.5A | ±12 | ±0.5 | 86 | 86 | |
| SQT 5－15D 0.4A | ±15 | ±0.4 | 86 | 86 | |
| SQT12－3.3S 3.6A | 12 (8～18) | 3.3 | 3.6 | 80 | 85 |
| SQT12－5S 2.6A | 5 | 2.6 | 81 | 85 | |
| SQT12－5.2S 2.5A | 5.2 | 2.5 | 82 | 85 | |
| SQT12－6S 2.3A | 6 | 2.3 | 82 | 85 | |
| SQT12－12S 1.3A | 12 | 1.3 | 85 | 87 | |
| SQT12－15S 1A | 15 | 1 | 85 | 87 | |
| SQT12－24S 0.6A | 24 | 0.6 | 85 | 87 | |
| SQT12－12D 0.6A | ±12 | ±0.6 | 85 | 87 | |
| SQT12－15D 0.5A | ±15 | ±0.5 | 85 | 87 | |
| SQT24－3.3S 3.6A | 24 (16～36) | 3.3 | 3.6 | 82 | 87 |
| SQT24－5S 2.5A | 5 | 2.5 | 83 | 87 | |
| SQT24－5.2S 2.5A | 5.2 | 2.5 | 83 | 87 | |
| SQT24－6S 2.3A | 6 | 2.3 | 84 | 87 | |
| SQT24－12S 1.3A | 12 | 1.3 | 84 | 87 | |
| SQT24－15S 1A | 15 | 1 | 84 | 87 | |
| SQT24－24S 0.6A | 24 | 0.6 | 84 | 87 | |
| SQT24－12D 0.5A | ±12 | ±0.5 | 84 | 87 | |
| SQT24－15D 0.5A | ±15 | ±0.5 | 84 | 87 | |
| SQT48－3.3S 3.6A | 48 (32～72) | 3.3 | 3.6 | 82 | 87 |
| SQT48－5S 2.6A | 5 | 2.6 | 83 | 87 | |
| SQT48－5.2S 2.5A | 5.2 | 2.5 | 83 | 87 | |
| SQT48－6S 2.3A | 6 | 2.3 | 84 | 87 | |
| SQT48－12S 1.3A | 12 | 1.3 | 84 | 87 | |
| SQT48－15S 1A | 15 | 1 | 84 | 87 | |
| SQT48－24S 0.6A | 24 | 0.6 | 84 | 87 | |
| SQT48－12D 0.5A | ±12 | ±0.5 | 84 | 87 | |
| SQT48－15D 0.5A | ±15 | ±0.5 | 84 | 87 |
