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.com

date

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1 of 7

SERIES:  

PBK-1 

│

 

DESCRIPTION:  

AC-DC POWER SUPPLY

FEATURES

• up to 1 W continuous output 
• compact SIP package
• single regulated outputs from 5~24 V
• 3,000 Vac isolation
• over current and short circuit protections
• CE, UL60950-1 safety approval
• wide input voltage: 70~400 Vdc (85~264 Vac)
• efficiency up to 70%

PART NUMBER KEY

PBK-1- 

XX - X

Output Voltage

Orientation

“blank” = vertical

B = right-angle

Base Number

MODEL

output

voltage

output

current

output

power

ripple

and noise

1

ef

fi

 ciency

(Vdc)

max

(mA)

max

(W)

max

(mVp-p)

typ

(%)

PBK-1-5

5

200

1

120

66

PBK-1-9

9

111

1

120

67

PBK-1-12

12

83

1

120

70

PBK-1-15

15

67

1

120

69

PBK-1-24

24

42

1

120

68

Note: 

1. Measured at 20 MHz bandwidth, see Test Con

fi

 guration section.

For more information, please visit the 

product page

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DESCRIPTION: 

AC-DC POWER SUPPLY

INPUT

parameter

conditions/description

min

typ

max

units

voltage

85

70

264

400

Vac

Vdc

frequency

47

440

Hz

current

at 115 Vac

at 230 Vac

120

40

mA

mA

inrush current

at 115 Vac

at 230 Vac

10

20

A

A

no load power consumption

0.5

W

input fuse

1 A/250 V, slow-blow type (external, required)

OUTPUT

parameter

conditions/description

min

typ

max

units

output current

5

%

capacitive load

5 Vdc output models

all other models

220

100

μ

F

μ

F

line regulation

at full load

±1.5

%

load regulation

at 5%~100% load

±2.5

%

voltage set accuracy

5 Vdc output models

all other models

±10

±5

%

%

hold-up time

at 115 Vac

at 230 Vac

80

300

ms

ms

switching frequency

50

kHz

temperature coef

fi

 cient

±0.1

%/°C

PROTECTIONS

parameter

conditions/description

min

typ

max

units

short circuit protection

continuous, auto restart

over current protection

auto restart

SAFETY & COMPLIANCE

parameter

conditions/description

min

typ

max

units

isolation voltage

input to output, for 1 minute

3,000

Vac

isolation resistance

100

M

Ω

safety approvals

UL60950-1, CE

safety class

Class II

conducted emissions

CISPR22/EN55022 external circuit required, Class A (see 

fi

 gure 2); Class B (see 

fi

 gure 3)

radiated emissions

CISPR22/EN55022 external circuit required, Class A (see 

fi

 gure 2); Class B (see 

fi

 gure 3)

ESD

IEC/EN61000-4-2 Class B, contact ±4 kV

radiated immunity

IEC/EN61000-4-3 Class A, 10V/m (external circuit required, see 

fi

 gure 3)

EFT/burst

IEC/EN61000-4-4 Class B, ±2 kV (external circuit required, see 

fi

 gure 2)

IEC/EN61000-4-4 Class B, ±4 kV (external circuit required, see 

fi

 gure 3)

surge

IEC/EN61000-4-5 Class B, ±1 kV/±2 kV (external circuit required, see 

fi

 gure 3)

conducted immunity

IEC/EN61000-4-6 Class A, 3 Vr.m.s (external circuit required, see 

fi

 gure 3)

PFM

IEC/EN61000-4-8 Class A, 10 A/m

voltage dips & interruptions

IEC/EN61000-4-11 Class B, 0%-70%

MTBF

at 25°C, max. load

300,000

hours

RoHS

2011/65/EU

For more information, please visit the 

product page

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PBK-1 

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DESCRIPTION: 

AC-DC POWER SUPPLY

Load (%)

Load(%)

PBK-1-5

PBK-1-12

PBK-1-24

PBK-1-5

PBK-1-12

PBK-1-24

30

35

40

45

50

55

60

65

70

75

80

10

20

30

40

50

60

70

80

90 100

E

ff

ic

e

n

c

y

(%

)

120VAC

240VAC

 

 

Ef

fi

c

ie

nc

y

(%

)

200VDC

300VDC

60

65

70

75

80

85

110

120

220

230

240

264

Ef

fi

ci

en

cy

(%

)

Input Voltage(VAC)

55

60

65

70

75

80

100

150

200

250

300

350

400

Ef

fic

ien

c

y(

%

)

Input Voltage(VDC)

ENVIRONMENTAL

parameter

conditions/description

min

typ

max

units

operating temperature

see derating curves

-40

85

°C

storage temperature

-40

105

°C

case temperature

90

°C

humidity

non-condensing

85

%

DERATING CURVES

EFFICIENCY CURVES

~ ~

~ ~

~ ~

~ ~

100

80

60

40

20

Ambient Temperature (°C)

Load (%)

-30

-40

40

50 55

-20

-10

70

60

80 85 90

Safe operating area

~ ~

100

80

60

40

20

Input Voltage (Vac)

Load (%)

85

95

105

115

125

110

235

245

240

255

264

Safe operating area

~ ~

100

80

60

40

20

Input Voltage (Vdc)

Load (%)

50

70

90 100 110

130

310

330

350

340

370

390400

Safe operating area

load vs. ambient temperature

(at 110~240 Vac or 100~340 Vdc input voltage)

ef

fi

 eciency vs. load

PBK-1-12

ef

fi

 eciency vs. load

PBK-1-12

ef

fi

 eciency vs. input voltage (full load)

ef

fi

 eciency vs. input voltage (full load)

load vs. input voltage (Vac)

(at 25°C)

load vs. input voltage (Vdc)

(at 25°C)

For more information, please visit the 

product page

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PBK-1 

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DESCRIPTION: 

AC-DC POWER SUPPLY

Front View

Top View

PCB Layout

Bottom View

SOLDERABILITY

parameter

conditions/description

min

typ

max

units

hand soldering

for 3~5 seconds

350

360

370

°C

wave soldering

for 5~10 seconds

255

260

265

°C

MECHANICAL

parameter

conditions/description

min

typ

max

units

dimensions

vertical: 35 x 11 x 25

right-angle: 35 x 13 x 25

mm

mm

material

UL94V-0

weight

8

g

MECHANICAL DRAWING

units: mm[inch]

tolerance: ±0.5[±0.020]

pin tolerance: ±0.1[±0.004]

VERTICAL ORIENTATION

PIN CONNECTIONS

PIN

FUNCTION

1

-Vin (N)

3

+Vin (L)

5

+V(CAP)

7

-V(CAP)

10

-Vo

12

+Vo

Note: 1. It is required to add C1 between 

pins 5 & 7 (see application circuits).

For more information, please visit the 

product page

.

                  

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PBK-1 

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DESCRIPTION: 

AC-DC POWER SUPPLY

Front View

Side View

Top View

PCB Layout

Bottom View

TEST CONFIGURATION

Figure 1

Table 1

Recommended External Circuit Components

V

OUT

(Vdc)

C1

1

C2

1

L1

1

C3

1

C4

CY0

(Y1 

capacitor)

5

10

μ

F/400V 150

μ

F/35V 2.2

μ

H 68

μ

F/35V 0.1

μ

F/50V 1nF/400Vac

9

10

μ

F/400V 150

μ

F/35V 2.2

μ

H 68

μ

F/35V 0.1

μ

F/50V 1nF/400Vac

12

10

μ

F/400V 100

μ

F/35V 2.2

μ

H 68

μ

F/35V 0.1

μ

F/50V 1nF/400Vac

15

10

μ

F/400V 100

μ

F/35V 2.2

μ

H 68

μ

F/35V 0.1

μ

F/50V 1nF/400Vac

24

10

μ

F/400V 100

μ

F/35V 2.2

μ

H 68

μ

F/35V 0.1

μ

F/50V 1nF/400Vac

C o p p e r s h e e t

Lo

ad

C o n n e c t Os c illo g r a p h P ro b e

$&

/

$&

1

AC -D C

+Vo

-Vo

F U SE

C 2

C 3

C Y 0

L 1

C 4

C 1

Note: 

1. Required components.

 

2. 1 A/250 V fuse required.

MECHANICAL DRAWING (CONTINUED)

units: mm[inch]

tolerance: ±0.5[±0.020]

pin tolerance: ±0.1[±0.004]

RIGHT-ANGLE ORIENTATION

PIN CONNECTIONS

PIN

FUNCTION

1

-Vin (N)

3

+Vin (L)

5

+V(CAP)

7

-V(CAP)

10

-Vo

12

+Vo

Note: 1. It is required to add C1 between 

pins 5 & 7 (see application circuits).

For more information, please visit the 

product page

.

                  

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DESCRIPTION: 

AC-DC POWER SUPPLY

EMC RECOMMENDED CIRCUIT

Recommended External Circuit Components

MOV2

S10K300

CY1, CY2

1nF/400Vac

CX

0.1

μ

F/275Vac

LCM

3.5mH

LDM

5mH

FUSE

1A/250V, slow blow

Figure 3

Table 3

AC ( N )

AC ( L)

A C (L )

M O V 2

LC M

C X

CY 1

CY 2

AC-DC

C 1

+

5

F U SE

12

C Y 0

10

7

AC ( N )

-V o

+V o

L1

+

+

C 2

C 3

T V S

R L

C 4

LD M

Notes: 

1. C1 and C3 are electrolytic capacitors. They are required for both AC input and DC input. 

 

2. For AC input, C1 is used as a 

fi

 lter capacitor. The recommended C1 value is 10 

μ

F/400 V. 

 

3. For DC input, C1 is used as an EMC 

fi

 lter capacitor. The recommended C1 value is 10

μ

F/400V. When the input voltage is above 370VDC, we recommend a 10

μ

F/450V capacitor.

 

4. C2 and C3 are output 

fi

 ler capacitors, we recommend high frequency and low impedance electrolytic capacitors. For capacitance and rated ripple current of capacitors refer to 

 

    the datasheets provided by the manufacturers, voltage derating of capacitors should be 80% or above.

 

5. C4 is a ceramic capacitor which is used to 

fi

 lter high frequency noise. C2, C3 and L1 form a pi-type 

fi

 lter circuit. For current of L1 and L2 refer to the datasheets provided by 

 

    the manufacturers, current derating should be 80% or above. TVS is a recommended component to protect post-circuits (if converter fails). We recommend using a 5D-9 

 

    external input NTC.

 

6. For standard EMC requirements, please refer to 

fi

 gure 2. If a higher EMC is required, please refer to 

fi

 gure 3.

 

7. All speci

fi

 cations measured at Ta=25C, humidity <75%, 115 Vac & 230 Vac input voltage, and rated output load, unless otherwise speci

fi

 ed.

Note: 

Also refer to Table 2.

TYPICAL APPLICATION CIRCUIT

1

+Vo

-Vo

10

12

AC( L)

AC(N)

C1

+

5

3

) 8 6 (

1 7 &

MOV1

7

A C-DC

C2

C3 TVS

RL

+

L1

(1)

+

C4

L2

CY0

Note: (1) is Pi filter circuit.

Figure 2

Table 2

Recommended External Circuit Components

V

OUT

(Vdc)

C1

1

L2

C2

1

L1

1

C3

1

C4

CY0

FUSE

1

TVS

NTC

MOV1

5

10

μ

F/400V 1mH 150

μ

F/35V 2.2

μ

H 68

μ

F/35V 0.1

μ

F/50V 1nF/400Vac

1A/250V

SMBJ7.0A

5D-9

S14K350

9

10

μ

F/400V 1mH 150

μ

F/35V 2.2

μ

H 68

μ

F/35V 0.1

μ

F/50V 1nF/400Vac

1A/250V

SMBJ12A

5D-9

S14K350

12

10

μ

F/400V 1mH 100

μ

F/35V 2.2

μ

H 68

μ

F/35V 0.1

μ

F/50V 1nF/400Vac

1A/250V

SMBJ20A

5D-9

S14K350

15

10

μ

F/400V 1mH 100

μ

F/35V 2.2

μ

H 68

μ

F/35V 0.1

μ

F/50V 1nF/400Vac

1A/250V

SMBJ20A

5D-9

S14K350

24

10

μ

F/400V 1mH 100

μ

F/35V 2.2

μ

H 68

μ

F/35V 0.1

μ

F/50V 1nF/400Vac

1A/250V

SMBJ30A

5D-9

S14K350

Note: 

1. Required components.

For more information, please visit the 

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PBK-1 

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DESCRIPTION: 

AC-DC POWER SUPPLY

CUI offers a two (2) year limited warranty.  Complete warranty information is listed on our website.

CUI reserves the right to make changes to the product at any time without notice.  Information provided by CUI is believed to be accurate and reliable.  However, no responsibility is 

assumed by CUI for its use, nor for any infringements of patents or other rights of third parties which may result from its use.

CUI products are not authorized or warranted for use as critical components in equipment that requires an extremely high level of reliability.  A critical component is any component of a 

life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness.

Headquarters

20050 SW 112th Ave.

Tualatin, OR 97062

800.275.4899

Fax 503.612.2383

cui

.com

techsupport@cui.com

rev.

description

date

1.0

initial release

08/09/2013

1.01

added bent pin model options, updated emc recommendations

03/25/2014

The revision history provided is for informational purposes only and is believed to be accurate.

REVISION HISTORY

For more information, please visit the 

product page

.