A3WR-XXXX
B3WR-XXXX/D
B3WR-XXXXA/DA
B3WR-XXXXC/DC
B3WR4-XXXX/D
B3WR4-XXXXA/DA
B3WR4-XXXXC/DC

B3U-XXXXA
B3U-XXXXDA
B3U-XXXXS
B3U-XXXXD
B3U-XXXXC
B3U-XXXXDC
P3WR-XXXX
P3WR-XXXXD
B3R-XXXX,D/H1

M3WR-XXXX/D


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Features:

■4:1 Wide Input Range.
■3W DIP-24 Package.
■Full SMD-Design.

■High Efficiency up to 85%.
■UL94V-0 Package Material.
■Low Ripple and Noise.
■Continuous Short Circuit Protection, Auto-Restarting.
■1000Vdc Isolation.  
■Input π Filter
■Operating Temperature Range -40°C to +85°C.
■Case Temperature 38°C @  Ta=25°C

■Meet  CE EN-60950-1 Certified

Note: Metal case could be selected with "M" after P/N

 

Description:

           The B3WR4 series is a wide input voltage range of DC-DC converters offering a single and

           dual regulated output. 24-pin DIP and high efficiency allows an  operation   temperature of

            -40°C to +85°C .The applications include industrial system, communications equipment, battery 

           powered equipments etc….

                                                                                                     

Selection Guide
P/N Input Range Output Voltage Output Current Efficiency

B3WR4-243.3

B3WR4-2405/D

B3WR4-2409/D

B3WR4-2412/D

B3WR4-2415/D

9~36VDC

3.3

5 / ±5

9 / ±9

12 / ±12

15 / ±15

850mA

600mA / ±300mA

333mA / ±167mA

250mA / ±125mA

200mA / ±100mA

77%

79%

81%

83%

84%

B3WR4-483.3

B3WR4-4805/D

B3WR4-4809/D

B3WR4-4812/D

B3WR4-4815/D

18~72VDC

3.3

5 / ±5

9 /±9

12 / ±12

15 / ± 15

900mA

600mA / ±300mA

333mA / ±167mA

250mA / ±125mA

200mA / ±100mA

78%

80%

82%

84%

85%

Electrical Specifications
Input Filter                                                                             π type.
Voltage set accuracy   MIN. TYP. MAX.
  ±1% ±2%
Line Regulation Low line to High line @ Max. load     0.3%
Load Regulation 20%~100% load     0.6%
Ripple & Noise @ 20MHz  BW  (Note 1)       50mVp-p
Operating Temperature Vin=5V -40°C   +85°C
Storage Temperature   -50°C   +125°C
Short-Circuit Protection

Continuous , Auto-Restarting

Operating Frequency (Pulse Frequency Modulation , PFM)

     Vin = Nominal Input   

 160KHZ
Isolation Test Voltage Tested for 1 second Min MIN. TYP. MAX.
1000Vdc    
Isolation Capacity     50pF  
Isolation Resistance   1GΏ    
Humidity       95%

MTBF

(MIL-HDBK-217F)

     106  hours     
Case Temperature Vin = Nominal Input @ Ta= 25°C   38°C  

Physical Specifications
Case Material Non conductive Black Plastic
Potting Material Epoxy(UL94V-0)
Weight 12.0g

All specifications valid at nominal input voltage , full load @ 25°C after warm-up time unless otherwise stated.

Outline Dimension

Note:

            1. To measure the output ripple & noise with short runs by 0.1uF/50V @ 20MHz nominal input

                and full load. Please see as below :