⎪



4:1 Wide input range voltage

Regulated and low ripple noise is requiredCompact size 1x1” packageIndustry control applicationEfficiency up to 90%Tele-communication application

Wide operating temperature from -40°C to +105°C



Energy battery power applicationEMI class A without external circuitContinuous short circuit protection

Ultra low standby powerNo minimum load required

Output voltage

Output current@ full load

Input current@ no load

Efficiency(1)(typ.)

Capacitive load(2)(max.)PFB15WR4-243.3J

3.3 VDC

4000mA7mA

85%12000uF

PFB15WR4-2405J

5 VDC

3000mA7mA

88%

6400uF

12 VDC

1250mA7mA

88.5%

1200uF

15 VDC

1000mA

7mA

89%

900uF

PFB15WR4-2424J

24 VDC

625mA

7mA

89.5%

240uF

PFB15WR4-2412DJ±12 VDC±625mA

7mA

87%±520uFPFB15WR4-2415DJ±15 VDC±500mA7mA

89%±330uF

PFB15WR4-483.3J

3.3 VDC

4000mA5mA

85%12000uF

PFB15WR4-4805J

5 VDC

3000mA5mA

88%

6400uFPFB15WR4-4812J

12 VDC

1250mA

5mA

89%

1200uF

15 VDC

1000mA5mA

89.5%900uF

PFB15WR4-4824J

24 VDC

625mA

5mA90%240uF

PFB15WR4-4812DJ±12 VDC±625mA5mA

89.5%±520uFPFB15WR4-4815DJ±15 VDC±500mA5mA

89.5%±330uF

Part number

Input voltage

PFB15WR4-2412J
PFB15WR4-2415J

PFB15WR4-4815J

9-36 VDC
Nom. 24 VDC

18-75 VDC
Nom. 48 VDC

1. The efficiency is tested by nominal input and maximum full load @25˚C.
2. The capacitive load is tested by minimum input and constant resistive load.

PFB 15 W R 4 - 24 05J
Model No.

PowerInput voltageWide range(4:1)

Output voltage

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.
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07-7017088⎢

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∣Parameter
Input filter∣⎪

Conditions

Min.

Start-up time

Nom. Vin at 100% load

20

24V input
48V input
24V input
48V input
24V input
48V input
DC-DC ON
DC-DC OFF

Start-up input voltage
Under voltage lockout
Input surge voltage(100ms max.)
Remote ON/OFF

7.5
16Input current (remote off mode)

25ms918

VDC
VDC
VDC
VDC
VDC
VDC

mA%

0.2
0.5
0.5
1.0%%%%

Cross regulation±5%

Trim range

±10%

60
100mVp-pmVp-p
KHz

Operating temperature
Storage temperature
Case temperature
MTBF (MIL-HDBK-217F)
Vibration
Short Circuit Protection
Isolation voltage

24V input
48V input
others350

Vout=3.3Vdc
with derating

400-40-55

+25˚C

105
125
110

1000

60 sec

1600

VDC

1000

Isolation capacitanceOver load protection

Function
Over voltage protectionMΩ
1200
1701904.66.8151830±15±1824V input
48V input
3.3V output
5V output
12V output
15V output
24V output±12V output±15V output

Safety approvals

pF%%

VDC

UL62368-1/ EN62368-1

Over load protection
Dimension
WeightCooling method
Case material
Potting material
EMI
ESD
Radiated immunity(1)Hiccup mode
25.40x25.40x10.00 mm
17Free air convection
Nickel plated metal with FR-4 base
SiliconeClass A/B(L x W x H)

EN55032
EN61000-4-2, Air±8Kv;
Contact±6kV
EN61000-4-3

Perf. Criteria A
Criteria A

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.
⎢KHz
˚C˚C
˚CkHrsMIL-STD-202G
Continuous, automatic recovery

Isolation resistance

EMC

VDC
VDC

2Single output
Dual output
Single output
Dual output

Ripple & Noise (20MHz)
lo=Full load
Operating frequency

Physical3675±1Line voltage regulationLL to HL at full load
Load voltage regulation
10%-100% full load

Environment

Unit

50
100
Open or 3.5~15VDC
Short or 0~1.2VDC

Output voltage accuracy

OutputMax.
Pi type

918

Input voltage range

Input

Typ.

T07-7017088⎢F

07-7017063⎢

www.powerctc.com⎢sales@ctc-dc-dc.comg∣Parameter
Fast transient(1)∣⎪Conditions
EN61000-4-4, ±2kV

Min.

Typ.

Max.
Criteria A

EN61000-4-5, ±2kV

Criteria A

EN61000-4-6

Criteria A
Criteria A

1.

Magnetic field immunity
EN61000-4-8
Test with E-CAP 220uF/100V at input terminal.

2.

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

3.

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

Surge(1)Conducted immunity

(1)

Load
120%
100%
80%
70%
60%
40%
20%
0%

-40

0 1020 304050 60

7080 907585

100 110 (˚C)

Ambient temperature with natural convection

1uF++VinVout--Ground Lead

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.
⎢T

07-7017088⎢F

07-7017063⎢

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Unit

∣∣

⎪

C3

L1Vin

C1

PFB15WR4C2LOAD

C4C1C2

L1

C3C4

PFB15WR4-24XXJ

2.2μF

2.2μF

4.7μH

1500pF

1500pFPFB15WR4-48XXJ

2.2μF

2.2μF

4.7μH

1500pF

1500pF

Trim upTrim down+Vout+Vout
R1

R1
R3

Vref
R2

Trim-Vout

R3

Vref
R2

Ru

Model
PFB15WR4-XX3.3J
PFB15WR4-XX05J
PFB15WR4-XX12J
PFB15WR4 XX15J
PFB15WR4-XX24J

RdTrimaR2

𝑅2 −a

Rd=-Vout

R1
16.6kΩ
10kΩ
38.1kΩ
50.1kΩ
86.32kΩ

Ru=R210kΩ
10kΩ
10kΩ
10kΩ
10kΩ

− 𝑅3𝑏𝑅1
𝑅1 −𝑏− 𝑅3R3
52.3kΩ
35.7kΩ
48.7kΩ
51kΩ
73.2kΩ

𝑉𝑟𝑒𝑓

a= ′𝑉𝑜 −𝑉𝑟𝑒𝑓b=∙ 𝑅1𝑉𝑜′ −𝑉𝑟𝑒𝑓
𝑉𝑟𝑒𝑓

∙ 𝑅2

Vref
1.24 V
2.5 V
2.5 V
2.5 V
2.5 V

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⎢

F07-7017063⎢

www.powerctc.com⎢

sales@ctc-dc-dc.com

∣

∣

⎪2405

4805

2415

4815

Pin

SingleDual

1+Vin+Vin

2-Vin-Vin

3

CTRL

CTRL

4-Vout

-Vout

5Trim

Common6+Vout+Vout

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⎢F07-7017063⎢

www.powerctc.com⎢

sales@ctc-dc-dc.com

∣∣⎪

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⎢

F07-7017063⎢

www.powerctc.com⎢

sales@ctc-dc-dc.com