EC3AW8 vs EC4AW8: 3W vs 6W 9–75V DC-DC Converters
The CINCON EC3AW8 and EC4AW8 are compact isolated DC-DC converters designed for industrial, telecom and battery-powered equipment requiring a very wide input range.
Both series operate from 9–75VDC, allowing one converter to support nominal 12V, 24V, 36V and 48V power buses. They also share the same DIP-24 package, output-voltage options and 3000VDC isolation.
The key difference is output power. Choose the EC3AW8 for loads up to 3W and the EC4AW8 when up to 6W or higher output current is required.
EC3AW8 vs EC4AW8 Comparison
| Parameter | EC3AW8 | EC4AW8 |
| Output power | 1.98–3W | 3.96–6W |
| Input voltage | 9–75VDC | 9–75VDC |
| Input ratio | 8:01 | 8:01 |
| Output options | 3.3V, 5V, 12V, 15V, ±5V, ±12V, ±15V | 3.3V, 5V, 12V, 15V, ±5V, ±12V, ±15V |
| Maximum efficiency | 87% | 87% |
| I/O isolation | 3000VDC | 3000VDC |
| Package | DIP-24 | DIP-24 |
| Dimensions | 1.25 × 0.80 × 0.40 inches | 1.25 × 0.80 × 0.40 inches |
| Operating temperature | -40°C to +105°C | -40°C to +105°C |
| Remote on/off | Optional positive logic | Optional positive logic |
| Protection | OVP, OCP, UVLO and short circuit | OVP, OCP, UVLO and short circuit |
| Safety | IEC/EN/UL 62368-1 | IEC/EN/UL 62368-1 |
| EMC | EN 55032 Class A without external filter | EN 55032 Class A without external filter |
| Operating altitude | Up to 5000m | Up to 5000m |
Output Current Comparison
| Output | EC3AW8 Model | EC3AW8 Current | EC4AW8 Model | EC4AW8 Current |
| 3.3V | EC3AW8-48S33 | 0.6A | EC4AW8-48S33 | 1.2A |
| 5V | EC3AW8-48S05 | 0.6A | EC4AW8-48S05 | 1A |
| 12V | EC3AW8-48S12 | 0.25A | EC4AW8-48S12 | 0.5A |
| 15V | EC3AW8-48S15 | 0.2A | EC4AW8-48S15 | 0.4A |
| ±5V | EC3AW8-48D05 | ±0.3A | EC4AW8-48D05 | ±0.5A |
| ±12V | EC3AW8-48D12 | ±0.125A | EC4AW8-48D12 | ±0.25A |
| ±15V | EC3AW8-48D15 | ±0.1A | EC4AW8-48D15 | ±0.2A |
Frequently Asked Questions
What is the main difference between EC3AW8 and EC4AW8?
The main difference is output power. EC3AW8 provides up to 3W, while EC4AW8 provides up to 6W and supports higher output current.
Do both converters accept a 9–75V input?
Yes. Both series have an 8:1 input range of 9–75VDC, covering several common industrial and battery bus voltages.
Are dual-output versions available?
Yes. Both series offer ±5V, ±12V and ±15V dual-output models.
What does the “P” suffix indicate?
The “P” suffix identifies a model with optional positive-logic remote on/off control.
Can EC4AW8 directly replace EC3AW8?
They have the same package dimensions and similar pin functions, but the exact pinout, remote-control option, output capacitance and thermal conditions should be verified before substitution.
EC3AW8 and EC4AW8 Price and RFQ
DataStorageIC supplies CINCON EC3AW8 and EC4AW8 isolated DC-DC converters in single-output, dual-output and remote-control versions.
Contact us for availability, lead time, pricing, datasheet support or an RFQ.
