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

Manufacturer: ASIA ELECTRONICS
Model: SQK 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 | + Vdc out | ③ | + Vdc out |
| ④ | No Pin | ④ | Common |
| ⑤ | − Vdc out | ⑤ | − Vdc out |
| ⑥ | Frame Ground | ⑥ | Frame Ground |
◆Hole Configurations on PCB (Top View)
◆Selection Guide
| Model Number | Input Volt. (Range) (V. DC) | Output Voltage (V. DC) | Output Current (mA) | Efficiency (Typical) (%) |
|---|---|---|---|---|
| SQK 5-5S1000 | 5 (4.5~9) | 5 | 1000 | 84 |
| SQK 5-6S900 | 6 | 900 | 84 | |
| SQK 5-12S500 | 12 | 500 | 85 | |
| SQK 5-15S400 | 15 | 400 | 85 | |
| SQK 5-24S250 | 24 | 250 | 85 | |
| SQK 5-5D500 | ±5 | ±500 | 81 | |
| SQK 5-12D250 | ±12 | ±250 | 85 | |
| SQK 5-15D200 | ±15 | ±200 | 85 | |
| SQK12-5S1000 | 12 (8~18) | 5 | 1000 | 84 |
| SQK12-6S900 | 6 | 900 | 84 | |
| SQK12-12S500 | 12 | 500 | 85 | |
| SQK12-15S400 | 15 | 400 | 85 | |
| SQK12-24S250 | 24 | 250 | 85 | |
| SQK12-5D500 | ±5 | ±500 | 81 | |
| SQK12-12D250 | ±12 | ±250 | 83 | |
| SQK12-15D200 | ±15 | ±200 | 83 | |
| SQK24-5S1000 | 24 (16~36) | 5 | 1000 | 84 |
| SQK24-6S900 | 6 | 900 | 84 | |
| SQK24-12S500 | 12 | 500 | 85 | |
| SQK24-15S400 | 15 | 400 | 85 | |
| SQK24-24S250 | 24 | 250 | 85 | |
| SQK24-5D500 | ±5 | ±500 | 81 | |
| SQK24-12D250 | ±12 | ±250 | 83 | |
| SQK24-15D200 | ±15 | ±200 | 83 | |
| SQK48-5S1000 | 48 (32~72) | 5 | 1000 | 84 |
| SQK48-6S900 | 6 | 900 | 84 | |
| SQK48-12S500 | 12 | 500 | 85 | |
| SQK48-15S400 | 15 | 400 | 85 | |
| SQK48-24S250 | 24 | 250 | 85 | |
| SQK48-5D500 | ±5 | ±500 | 81 | |
| SQK48-12D250 | ±12 | ±250 | 83 | |
| SQK48-15D200 | ±15 | ±200 | 83 |












