⎪

4:1 wide input voltage range
3W DIP24 package
Low ripple and noise
Lead free design, RoHS compliant
Continuous short circuit protection
1KVD/2KVDC Isolation min.
Input π filter

Input voltage range from 9V to 72V
1KV~6KV input and output isolation
Regulated and low ripple noise is required
Industry control application
Tele-communication application
Medical requirement application

Output voltage

Output current@ full load

Efficiency (1)(typ.)

Capacitive load (2)(max.)

B3WR4-243.3AJ

3.3 VDC

900 mA

79%

2000μF

B3WR4-2405AJ

5 VDC

600 mA82%

1000μF

B3WR4-2409AJ

9 VDC

333 mA

84%

470μF

B3WR4-2412AJ

12 VDC

250 mA

84%

220μF

Part number

Input voltage

9-36 VDC
Nom. 24VDC

15 VDC

200 mA

85%

120μF

B3WR4-2405DAJ±5 VDC±300 mA

81%±470μF

B3WR4-2409DAJ±9 VDC±167 mA

83%±220μF

B3WR4-2412DAJ±12 VDC±125 mA

84%±100μF

B3WR4-2415DAJ±15 VDC±100 mA

85%±68μF

B3WR4-483.3AJ

3.3 VDC

900 mA

78%

2000μF

B3WR4-4805AJ

5 VDC

600 mA79%

1000μF

B3WR4-4809AJ

9 VDC

333 mA

83%

470μF

B3WR4-4812AJ

12 VDC

250 mA

84%

220μF

15 VDC

200 mA

85%

120μF

B3WR4-4805DAJ±5 VDC±300 mA

80%±470μF

B3WR4-4809DAJ±9 VDC±167 mA

82%±220μF

B3WR4-4812DAJ±12 VDC±125 mA

84%±100μF

B3WR4-4815DAJ±15 VDC±100 mA

84%±68μF

B3WR4-2415AJ

B3WR4-4815AJ

1.
2.







18-72 VDC
Nom. 48VDC

The efficiency is test by nominal input and max. full load at 25˚C.
The capacitive load is test by minimum input and constant resistive load.

□: Plastic case
M: Metal case

B 3 WR4-24 09 D AJH M /SMD /CTRL
Model No. PowerInput
voltage

Wide range(4:1)

Outputvoltage□: Single output
D: Dual output□: 2KVDC isolation
H: 4KVDC isolation
H6: 6KVDC isolation□: DIP
SMD: SMD type□: no control pin

CTC is the professional and one among world’s leading manufacturers of DC-DC/ AC-DC converters.
The products were used in Computers, Industrial controls, Medical equipment, Transportation, EV, ECO-power, Aero-space application and communication.
⎢T07-7017088⎢F 07-7017063⎢

www.powerctc.com⎢

sales@ctc-dc-dc.com

∣Parameter
Input∣⎪Conditions

Min.

Typ.

Input filter
Voltage range

4:1±2%

Line regulation

LL to HL at full load

±0.4%

Load regulation

For output current change from
20% to 100%

±0.6%

Minimum load

0%0.1μF capacitor on output,
20MHz BW

Ripple & noise
No load power consumption

Function

300mW

At full load

120180KHz

free air convection-40105

˚C-55125

˚C95%RH

Relative humidity
MTBF(MIL-HDBK-217F)+25˚C1043

KHoursIsolation voltage

1 Sec.

2

KVDC

Isolation capacitance40

Isolation resistance180

Short Circuit Protection

Continuous, auto restart

SafetyEN60950 / EN60601(L x W x H)

31.80 x 20.30 x 10.20 mm

Natural convection

20˚C/W for plastic case
12˚C/W for metal case

13

Thermal impedancegCase material

Non-conductive black plastic or metal

Potting material

Epoxy (UL94V-0)

EMI

EN55022

ESD

EN61000-4-2,Air±8kV; Contact±6kV

Criteria A

Radiated immunity

EN61000-4-3, 10 V/m

Criteria A

Fast transient

EN61000-4-4, ± 2kV

Criteria ASurge

EN61000-4-5, ± 2kV

Criteria A

Conducted immunity

EN61000-4-6, 10 Vr.m.s

Criteria A

PMF

EN61000-4-8, 50Hz
1A/m (r.m.s)

Criteria A

Class A/ Class B

1.

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

2.

The product information and specifications are subject to change without prior notice.

CTC is the professional and one among world’s leading manufacturers of DC-DC/ AC-DC converters.
The products were used in Computers, Industrial controls, Medical equipment, Transportation, EV, ECO-power, Aero-space application and communication.
⎢T07-7017088⎢

F 07-7017063⎢pF
GΩ

WeightEMC

mVp-p

Operating temperature

Dimension

Physical50

Operating frequency
Storage temperature
Environment

Unit

Pi type

Voltage accuracy

OutputMax.

www.powerctc.com⎢

sales@ctc-dc-dc.com

∣+Vin-+Vout
-∣

⎪

0.1μF

Ground lead

*To measure the output ripple & noise with short runs by 0.1μF/50V @20MHz nominal input and full load.

Ambient temperature
Load
120%
100%
80%
60%
50%
40%
20%
0%-40

0 1020 30

40 50 60

70 80 90 100 110 (˚C)
10585

*The derating curve was measured at nominal input voltage.

PinSingle

Dual

1

CTRL(option)

CTRL(option)

2, 3-Vin-Vin

9NC

Com

11NC-Vout

14+Vout+Vout

16-VoutCom

22, 23+Vin+Vin

NC= No Connection

CTC is the professional and one among world’s leading manufacturers of DC-DC/ AC-DC converters.
The products were used in Computers, Industrial controls, Medical equipment, Transportation, EV, ECO-power, Aero-space application and communication.
⎢T07-7017088⎢

F 07-7017063⎢

www.powerctc.com⎢

sales@ctc-dc-dc.com

∣∣⎪SMDPinSingle

Dual

1

CTRL(option)

CTRL(option)

2, 3-Vin-Vin

9NC

Com

11NC-Vout

14+Vout+Vout

16-Vout

Com22, 23+Vin+Vin

NC= No Connection

CTC is the professional and one among world’s leading manufacturers of DC-DC/ AC-DC converters.
The products were used in Computers, Industrial controls, Medical equipment, Transportation, EV, ECO-power, Aero-space application and communication.
⎢T07-7017088⎢

F 07-7017063⎢

www.powerctc.com⎢

sales@ctc-dc-dc.com