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Tamura BPM1234SJ Ultra-low Standby Power Module

The TAMURA BPM1234SJ power module offers a compact and efficient solution for AC/DC power applications. Its design minimizes external components, enabling easy integration and reduced size. Key features include significant reduction in power consumption during light and no-load conditions, a wide input voltage range (DC100V to 420V), and reduced noise levels. The module is suitable for a variety of applications including industrial equipment, information processing equipment, AV equipment, and home appliances, where standby power consumption is a critical concern.

Authorized Distributors
Source:DigiKey
Part No:BPM1234SJ
Stock:0
Inv Date:06-10-2026
Price: Unit price: $13.33
Buy/RFQ:
Part No:BPM1234SJ
Stock:3247
Inv Date:06-11-2026
Price: Unit price: $13.6
Buy/RFQ:
Part No:BPM1234SJ
Stock:133
Inv Date:06-10-2026
Price: Unit price: $12.96
Buy/RFQ:
Part No:BPM1234SJ
Stock:133
Inv Date:06-10-2026
Price: Unit price: $12.96
Buy/RFQ:

Tamura BPM1234SJ Ultra-low Standby Power Module Specifications:

  • Input Voltage Range: DC100V~420V (DC50V~420V)
  • Maximum Input Voltage: 420V or less (including peak value)
  • Input Ripple Voltage Lower Limit: 75V or more
  • Rated Input Voltage: DC140V, DC340V
  • Rated Output Voltage: 12V
  • Rated Load Current: 3.4A
  • Maximum Peak Load Current: 5.0A (for 5s or less, Duty 30%, Average current 3.4A or less)
  • Efficiency: 85% or more (90% TYP) at rated input voltage and rated output current
  • Output Voltage Tolerance: ±5%
  • Line Regulation: 100mV or less (Input voltage DC100V~420V)
  • Load Regulation: 250mV or less (Output current 0~3.4A)
  • No-load Power: 50mW or less (25mW TYP) at rated input voltage
  • Ripple: 120mVp-p or less at rated input voltage and rated output current
  • Ripple Noise: 150mVp-p or less
  • Overcurrent Protection: 5A or more (Hiccup mode)
  • Overvoltage Protection: 13.8V~18.5V (Latch off)
  • Overheat Protection: Latch off
  • Dielectric Withstand Voltage: AC3.75kV 1min (between Primary and Secondary)
  • Insulation Resistance: 100MΩ or more (between Primary and Secondary) at DC500V
  • Operating Temperature Range: -20℃~80℃ (Refer to Ambient temperature derating curve)
  • Operating Humidity Range: 20~95%RH (No condensation)
  • Storage Temperature Range: -25℃~85℃
  • Storage Humidity Range: 5~95%RH (No condensation)

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Frequently Asked Questions

Where can I buy Tamura BPM1234SJ?

You can click on the BUY or RFQ button to purchase BPM1234SJ from an authorized Tamura distributor.

How do I troubleshoot issues or seek technical support for part BPM1234SJ?

You can download the BPM1234SJ datasheet or visit the Tamura website for support.

Who is the manufacturer of BPM1234SJ?

Tamura

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