High-power half brick DC/DC converter delivering up to 350W / 100A. Advanced Buck Reset + SR topology achieves 176 W/in³ power density. Single-side component design plus patented Sink-Plate technology enhances thermal performance and reliability. Ideal for telecom, servers, networking, and data center applications.
The CPH series provides up to 350W/100A output in the industry-standard half brick package. The efficient SR stage combined with patented Buck Reset topology reduces power loss for 176 W/in³ power density. Single-side component placement and multi-layer PCB plus Sink-Plate technology deliver superior thermal performance.
Available in 48V (36–75V) and 24V (18–36V) input ranges. Contact factory for custom input/output configurations.
| Part Number | Input Range | Max Input Power | Vout | Iout Max | Max Output | Efficiency |
|---|---|---|---|---|---|---|
| CPH48050abcd-70XXX | 36–75V | 390W | 5.0V | 70A | 350W | 90% |
| CPH48033abcd-70XXX | 36–75V | 260W | 3.3V | 70A | 231W | 89% |
| CPH48025abcd-80XXX | 36–75V | 230W | 2.5V | 80A | 200W | 87% |
| CPH48018abcd-80XXX | 36–75V | 170W | 1.8V | 80A | 144W | 84% |
| CPH48015abcd-80XXX | 36–75V | 145W | 1.5V | 80A | 120W | 83% |
| Part Number | Input Range | Max Input Power | Vout | Iout Max | Max Output | Efficiency |
|---|---|---|---|---|---|---|
| CPH24050abcd-70XXX | 18–36V | 395W | 5.0V | 70A | 350W | 89% |
| CPH24033abcd-70XXX | 18–36V | 265W | 3.3V | 70A | 231W | 88% |
| CPH24025abcd-80XXX | 18–36V | 235W | 2.5V | 80A | 200W | 86% |
| CPH24018abcd-80XXX | 18–36V | 175W | 1.8V | 80A | 144W | 83% |
| CPH24015abcd-80XXX | 18–36V | 148W | 1.5V | 80A | 120W | 82% |
All specifications are typical at nominal input, full load, and 25°C unless otherwise noted.
| Operating Temperature | -40°C to +110°C |
| Storage Temperature | -55°C to +125°C |
| Input Voltage (24V Op) | -0.5V to +40Vdc |
| Input Voltage (48V Op) | -0.5V to +80Vdc |
| Input Transient (24V, 100ms) | 50V Maximum |
| Input Transient (48V, 100ms) | 100V Maximum |
| I/O Isolation | 2.0KV Minimum |
| Input to Case Isolation | 1.0KV Minimum |
| Output to Case Isolation | 1.0KV Minimum |
| Remote Control Voltage | -0.5V to +12Vdc |
| Switching Frequency | 330KHz Typical |
| MTBF (Bellcore TR-332) | 3.06 × 10⁶ hrs @ GB/25°C |
| OTP (Baseplate) | 110°C ±5°C |
| Weight (Open Frame) | 60g / 1.0mm metal plate |
| Weight (Metallic Enclosure) | 95g / 1.0mm metal plate |
| Remote Control (Logic High) | +3.0V to +6.5V |
| Remote Control (Logic Low) | 0V to +1.0V |
| RC Pin Input Current | -0.5mA to +1.5mA |
| Voltage Range (24V Models) | +18V to +36Vdc |
| Voltage Range (48V Models) | +36V to +75Vdc |
| Reflected Ripple Current | 30mA rms / 100mAp-p |
| Power ON (24V / 48V) | +17.0~18.0V / +34.0~36.0V |
| Power OFF (24V / 48V) | +15.6~16.6V / +31.2~33.2V |
| Off State Input Current | 6mA Max |
| Latch-State Input Current | 8mA Max |
| Input Cap (24V / 48V) | 42.0µF Max / 15.0µF Max |
| Voltage Accuracy | ±1.0% Typical |
| Line Regulation | ±0.3% |
| Load Regulation | ±0.3% |
| Temperature Coefficient | ±0.03%/°C |
Industry-standard half brick 9-pin interface. Remote control, sense lines, and trim for flexible system integration.
Efficiency curves, derating, transient response, and ripple characteristics for the CPH series.
Start-up · Transient response · Ripple · Efficiency · Derating — View full detail in PDF →
Industry-standard half brick package dimensions. Available in open frame (Sink-Plate) or metallic enclosure.
Metallic Enclosed Package — View full detail in PDF →
Open Frame Package — Sink-Plate technology
Configure your CPH series part number using the options below. Contact factory for custom configurations.
CPH48050P000M-70XXX
Contact our engineering team for custom input/output voltages, special pin lengths, or application-specific modifications.
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