产品特点 FEATURES

1 Brand: DELTA

2 Model: S48SP3R310NRFB

3 Type: DC/DC power converter

4 Input voltage range: 36Vdc to75Vdc

5 Output specs:3.3Vdc @10A (max35W)

6 Form factor:1x1 brick (1.30"×0.96"×0.33"/33.0mm×24.4mm×8.55mm)

7 Efficiency: Over90% at full load (3.3V/10A)

8 Protection features: Input under-voltage lockout (UVLO), output over-voltage protection (OVP), over-current protection (OCP), over-temperature protection (OTP); optional auto-restart or latch-up modes

9 Isolation:2250Vdc input-output isolation

10 Mechanical options: Surface-mount (SMD) or through-hole package

11 Compliance: UL/cUL60950 recognized; ISO9001, TL9000, ISO14001, QS9000, OHSAS18001 certified manufacturing

12 Reliability: MTBF of1.98 million hours (80% load,25°C,300LFM airflow)

13 Additional features: Remote on/off (negative/positive logic), output voltage trim (-10% to+10%), no minimum load required

使用场景 APPLICATIONS

1 Optical transport systems

2 Data networking equipment

3 Communications infrastructure (wireless and traditional telecom)

4 Server hardware

5 Electronic devices needing stable 3.3V power from 48V input

注意事项 PRECAUTIONS

1 Input source: Add10-100µF electrolytic capacitor (ESR<0.7Ω@100kHz) if source inductance exceeds a few µH

2 Safety: Input must be insulated from AC mains; install max3A input fuse

3 Soldering: Follow leaded/lead-free temp profiles (refer to specs for details)

4 Thermal management: Ensure sufficient cooling (-40°C to110°C); derate based on ambient temp and airflow

5 Remote on/off: For negative logic (default), short ON/OFF to Vi(-) if unused; for positive logic, leave floating if unused

6 Output trim: Use external resistors for voltage adjustment; do not exceed 35W when trimming up

7 Layout/EMC: Contact DELTA support for EMC and PCB layout assistance

8 Cleaning: Proper post-solder cleaning to maintain reliability

S48SP3R310NRFB-PDF数据手册-参考资料