CTC DC/DC-CONVERTER

Features:

■2:1 Wide Input Range.
■3W DIP-24 Package.

■Input π Filter

■Internal SMD design.
■High Efficiency up to 86%.
■UL94V-0 Package Material.
■Low Ripple and Noise.
■Continuous Short Circuit Protection, Auto-Restarting.
■2000Vdc Isolation min.
■Operating Temperature Range -40°C to +85°C.

■Meet CE EN-60950-1 Certified

Note: (1) Add "/H" after Order Code for isolation 4000Vdc min.

(2) Metal case could be selected with "M" after P/N

Description:

The B3WR-xxxxA/DA 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 except the 4.5~9V input voltage range.

Selection Guide

P/N

Input Range

Output Voltage

Output Current

Efficiency Typ.

B3WR-053.3A

B3WR-0505A/DA

B3WR-0509A/DA

B3WR-0512A/DA

B3WR-0515A/DA

4.5~9VDC

3.3

5/±5

9/±9

12/±12

15/±15

900mA

600mA/±300mA

333mA/±167mA

250mA/±125mA

200mA/±100mA

66%

71%

74%

75%

B3WR-12.3.3A

B3WR-1205A/DA

B3WR-1209A/DA

B3WR-1212A/DA

B3WR-1215A/DA

9~18VDC

3.3

5/±5

9/±9

12/±12

15/±15

900mA

600mA/±300mA

333mA/±167mA

250mA/±125mA

200mA/±100mA

75%

81%

83%

84%

B3WR-243.3A

B3WR-2405A/DA

B3WR-2409A/DA

B3WR-2412A/DA

B3WR-2415A/DA

18~36VDC

3.3

5/±5

9/±9

12/±12

15/±15

900mA

600mA/±300mA

333mA/±167mA

250mA/±125mA

200mA/±100mA

76%

78%

82%

84%

86%

B3WR-483.3A

B3WR-4805A/DA

B3WR-4809A/DA

B3WR-4812A/DA

B3WR-4815A/DA

36~72VDC

3.3

5/±5

9/±9

12/±12

15/±15

900mA

600mA/±300mA

333mA/±167mA

250mA/±125mA

200mA/±100mA

77%

79%

83%

85%

Electrical Specifications
Input Filter	π type.
Voltage set accuracy		MIN.	TYP.	MAX.
Voltage set accuracy			±1%	±2%
Line Regulation	Low line to High line @ Max. load			0.4%
Load Regulation	20%~100% load			0.6%
Ripple & Noise @ 20MHz BW (Note 1)				50mVp-p
Operating Temperature	Vin=5V	-40°C		+80°C
Operating Temperature	Vin=12V,24V,48V	-40°C		+85°C
Storage Temperature		-50°C		+125°C
Short-Circuit Protection	Continuous, Auto Restart
Operating Frequency (Pulse Frequency Modulation , PFM)	Vin = Nominal Input	100KHZ
Isolation Test Voltage	Tested for 1 second Min	MIN.	TYP.	MAX.
Isolation Test Voltage	Tested for 1 second Min	2000Vdc
Isolation Capacity			40pF
Isolation Resistance		1GΏ
Humidity				95%
MTBF (MIL-HDBK-217F)			10⁶hours
Case Temperature	Vin = Nominal Input @ Ta= 25°C		40°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 Dimensions

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 :