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商品参数
参数完善中
商品详情
产品特点 FEATURES
1
Belfuse QM48T25050-NDB0G DC-DC converter with quarter-brick form factor
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Wide input voltage range: 36-75V DC
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Output: 5V DC, up to 25A rated load current
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Through-hole (TH) mounting type, low profile (0.31 inches /7.9mm)
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Lightweight: 1.1 oz (31.5g) typical
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High efficiency design, no heat sink required
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Industry-standard quarter-brick pinout for easy system integration
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On-board input differential LC filter to reduce reflected ripple current
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Supports start-up into pre-biased output and no minimum load requirement
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RoHS-compliant (lead-free solder) and lead-solder-exempted options available
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Fully protected: Overcurrent, short circuit, overvoltage, overtemperature (auto-restart after fault removal)
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Remote output sense function to compensate for voltage drops at the load
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Output voltage trim range: -20% to +10% of nominal value for design flexibility
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High reliability: MTBF of 2.6 million hours (calculated per Telcordia TR-332 Method I Case1)
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Optional positive/negative logic ON/OFF control
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Safety certifications: UL/CSA 60950-1, EN62368-1, IEC60950-1, IEC62368-1 (basic insulation)
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Meets FCC Class B and EN55022 Class B conducted emissions with external filter
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All materials comply with UL94 V-0 flammability rating
使用场景 APPLICATIONS
1
Telecom base stations and equipment (supports 48V battery systems, prevents deep discharge)
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Data center servers and networking gear (high current, efficient power conversion)
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Industrial automation systems (wide input range, robust protection features)
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Embedded systems and IoT devices (low profile, no heat sink needed for space-constrained designs)
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Networking switches and routers (quarter-brick form factor is widely used)
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Industrial control systems (reliable power with overcurrent/overvoltage protection)
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Telecom battery backup systems (handles pre-biased output start-up)
注意事项 PRECAUTIONS
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External input fuse: A 7A fuse is recommended to comply with safety agency requirements
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Remote sense usage: If not used, short SENSE(+) to Vout(+) and SENSE(-) to Vout(-); if used, connect sense pins to load points
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Trim resistor guidelines: Follow provided equations for trim-up/trim-down; do not exceed ±20%/+10% range; leave trim pin open if unused
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Thermal management: Adhere to thermal derating curves based on ambient temperature and airflow to avoid overheating
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Overtemperature protection: Auto-restarts once cooled to safe operating temperatures
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Input undervoltage lockout: Turns on at ≥35V, shuts off at ≤31V
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Overcurrent/short circuit protection: Switches to constant current then shuts down; auto-restarts every ~100ms until fault is removed
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Overvoltage protection: Triggers when output exceeds threshold; auto-restarts until fault cleared
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EMC compliance: Use external filter to meet FCC Class B and EN55022 Class B conducted emissions
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Safety warning: Not intended for life support, hazardous environments, or nuclear control systems
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Spec changes: Product specifications may change without prior notice
QM48T25050-NDB0G
价格：￥909.3
购买数量
个
(180个/袋，最小起订量1个，递增量：1)
总价金额：
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