DC/DC Converters - Through Hole

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R-78K DC/DC Converters

RECOM Power R-78K DC/DC Converters are available in 0.5A, 1A, and 2A versions with fixed outputs of 1.2V, 1.5V, 1.8V, 2.5V, and 6.5V, depending on the model, as well as traditional outputs of 3.3V, 5V, 9V, 12V, and 15V. The R-78K-0.5, R-78K-1.0, and R-78K-2.0 series all offer a wide input voltage range of 4.5V_DC to 36V_DC with efficiency of up to 95% or 96% and no need for heatsinks. The R-78K units have an ambient operating temperature range of -40°C to +90°C, including versions with no derating. Protections include undervoltage lockout and short circuits with automatic recovery. These SIP3 converters can meet EN 55032 class B EMC specifications with a simple input filter.

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Part #

DC/DC Converters - Through Hole 4.5-36Vin 2.5Vout 1A

R-78K2.5-1.0
RECOM Power
1: $3.91
486In Stock

Mfr. Part #
R-78K2.5-1.0

Mouser Part #
919-R-78K2.5-1.0

RECOM Power

DC/DC Converters - Through Hole 4.5-36Vin 2.5Vout 1A

Learn More

Datasheet

486In Stock

$3.91

$3.80

$3.75

$3.40

View

Min.: 1
Mult.: 1

Non-Isolated

1 Output

4.5 V

36 V

2.5 V

1 A

SIP-3

11.5 mm (0.453 in)

7.55 mm (0.297 in)

10.2 mm (0.402 in)

Industrial

R-78K-1.0

DC/DC Converters - Through Hole 11-36Vin 9Vout 2A

R-78K9.0-2.0
RECOM Power
1: $5.88
398In Stock

Mfr. Part #
R-78K9.0-2.0

Mouser Part #
919-R-78K9.0-2.0

RECOM Power

DC/DC Converters - Through Hole 11-36Vin 9Vout 2A

Learn More

Datasheet

398In Stock

$5.88

$5.71

$5.62

$5.32

View

Min.: 1
Mult.: 1

Non-Isolated

1 Output

4.5 V

36 V

9 V

2 A

SIP-3

11.5 mm (0.453 in)

7.55 mm (0.297 in)

10.2 mm (0.402 in)

Industrial

R-78K-2.0

DC/DC Converters - Through Hole 4.5-36Vin 3.3Vout 500mA

R-78K3.3-0.5
RECOM Power
1: $3.15
16,372In Stock

Mfr. Part #
R-78K3.3-0.5

Mouser Part #
919-R-78K3.3-0.5

RECOM Power

DC/DC Converters - Through Hole 4.5-36Vin 3.3Vout 500mA

Learn More

Datasheet

16,372In Stock

$3.15

$3.04

$2.99

$2.57

View

Min.: 1
Mult.: 1

Non-Isolated

1 Output

4.5 V

36 V

3.3 V

500 mA

SIP-3

11.5 mm (0.453 in)

7.55 mm (0.297 in)

10.2 mm (0.402 in)

Industrial

R-78K-0.5

DC/DC Converters - Through Hole 4.5-36Vin 3.3Vout 1A

R-78K3.3-1.0
RECOM Power
1: $3.91
8,349In Stock

Mfr. Part #
R-78K3.3-1.0

Mouser Part #
919-R-78K3.3-1.0

RECOM Power

DC/DC Converters - Through Hole 4.5-36Vin 3.3Vout 1A

Learn More

Datasheet

8,349In Stock

$3.91

$3.80

$3.75

$3.40

View

Min.: 1
Mult.: 1

Non-Isolated

1 Output

4.5 V

36 V

3.3 V

1 A

SIP-3

11.5 mm (0.453 in)

7.55 mm (0.297 in)

10.2 mm (0.402 in)

Industrial

R-78K-1.0

DC/DC Converters - Through Hole 6.5-36Vin 5Vout 500mA

R-78K5.0-0.5
RECOM Power
1: $3.12
21,245In Stock

Mfr. Part #
R-78K5.0-0.5

Mouser Part #
919-R-78K5.0-0.5

RECOM Power

DC/DC Converters - Through Hole 6.5-36Vin 5Vout 500mA

Learn More

Datasheet

21,245In Stock

$3.12

$3.02

$2.98

$2.73

View

Min.: 1
Mult.: 1

Non-Isolated

1 Output

6.5 V

36 V

5 V

500 mA

SIP-3

11.5 mm (0.453 in)

7.55 mm (0.297 in)

10.2 mm (0.402 in)

Industrial

R-78K-0.5

DC/DC Converters - Through Hole 6.5-36Vin 5Vout 1A

R-78K5.0-1.0
RECOM Power
1: $3.91
17,918In Stock

Mfr. Part #
R-78K5.0-1.0

Mouser Part #
919-R-78K5.0-1.0

RECOM Power

DC/DC Converters - Through Hole 6.5-36Vin 5Vout 1A

Learn More

Datasheet

17,918In Stock

$3.91

$3.80

$3.75

$3.31

View

Min.: 1
Mult.: 1

Non-Isolated

1 Output

4.5 V

36 V

5 V

1 A

SIP-3

11.5 mm (0.453 in)

7.55 mm (0.297 in)

10.2 mm (0.402 in)

Industrial

R-78K-1.0

DC/DC Converters - Through Hole 6.5-36Vin 5Vout 2A

R-78K5.0-2.0
RECOM Power
1: $5.82
4,661In Stock

Mfr. Part #
R-78K5.0-2.0

Mouser Part #
919-R-78K5.0-2.0

RECOM Power

DC/DC Converters - Through Hole 6.5-36Vin 5Vout 2A

Learn More

Datasheet

4,661In Stock

$5.82

$5.71

$5.62

$5.03

$4.92

Min.: 1
Mult.: 1

Non-Isolated

1 Output

4.5 V

36 V

5 V

2 A

SIP-3

11.5 mm (0.453 in)

7.55 mm (0.297 in)

10.2 mm (0.402 in)

Industrial

R-78K-2.0

DC/DC Converters - Through Hole 2A 6.5-36Vin 5Vout

R-78K5.0-2.0L
RECOM Power
1: $5.88
5,167In Stock

Mfr. Part #
R-78K5.0-2.0L

Mouser Part #
919-R-78K5.0-2.0L

RECOM Power

DC/DC Converters - Through Hole 2A 6.5-36Vin 5Vout

Learn More

Datasheet

5,167In Stock

$5.88

$5.71

$5.62

$5.45

View

Min.: 1
Mult.: 1

Non-Isolated

1 Output

4.5 V

36 V

5 V

2 A

SIP-3

11.5 mm (0.453 in)

8.5 mm (0.335 in)

17.5 mm (0.689 in)

Industrial

R-78K-2.0

DC/DC Converters - Through Hole 15-36Vin 12Vout 500mA

R-78K12-0.5
RECOM Power
1: $3.15
4,692In Stock

Mfr. Part #
R-78K12-0.5

Mouser Part #
919-R-78K12-0.5

RECOM Power

DC/DC Converters - Through Hole 15-36Vin 12Vout 500mA

Learn More

Datasheet

4,692In Stock

$3.15

$3.04

$2.99

$2.84

View

Min.: 1
Mult.: 1

Non-Isolated

1 Output

15 V

36 V

12 V

500 mA

SIP-3

11.5 mm (0.453 in)

7.55 mm (0.297 in)

10.2 mm (0.402 in)

Industrial

R-78K-0.5

DC/DC Converters - Through Hole 15-36Vin 12Vout 1A

R-78K12-1.0
RECOM Power
1: $3.91
3,227In Stock

Mfr. Part #
R-78K12-1.0

Mouser Part #
919-R-78K12-1.0

RECOM Power

DC/DC Converters - Through Hole 15-36Vin 12Vout 1A

Learn More

Datasheet

3,227In Stock

$3.91

$3.80

$3.75

$3.35

$3.34

Min.: 1
Mult.: 1

Non-Isolated

1 Output

15 V

36 V

12 V

1 A

SIP-3

11.5 mm (0.453 in)

7.55 mm (0.297 in)

10.2 mm (0.402 in)

Industrial

R-78K-1.0

DC/DC Converters - Through Hole 14-36Vin 12Vout 2A

R-78K12-2.0
RECOM Power
1: $5.82
1,656In Stock
946Expected 8/28/2026

Mfr. Part #
R-78K12-2.0

Mouser Part #
919-R-78K12-2.0

RECOM Power

DC/DC Converters - Through Hole 14-36Vin 12Vout 2A

Learn More

Datasheet

1,656In Stock

946Expected 8/28/2026

$5.82

$5.71

$5.62

$5.02

$4.90

Min.: 1
Mult.: 1

Non-Isolated

1 Output

14 V

36 V

12 V

2 A

SIP-3

11.5 mm (0.453 in)

7.55 mm (0.297 in)

10.2 mm (0.402 in)

Industrial

R-78K-2.0

DC/DC Converters - Through Hole 2A 14-36Vin 12Vout

R-78K12-2.0L
RECOM Power
1: $5.82
1,196In Stock

Mfr. Part #
R-78K12-2.0L

Mouser Part #
919-R-78K12-2.0L

RECOM Power

DC/DC Converters - Through Hole 2A 14-36Vin 12Vout

Learn More

Datasheet

1,196In Stock

$5.82

$5.71

$5.62

$5.40

View

Min.: 1
Mult.: 1

Non-Isolated

1 Output

14 V

36 V

12 V

2 A

SIP-3

11.5 mm (0.453 in)

8.5 mm (0.335 in)

17.5 mm (0.689 in)

Industrial

R-78K-2.0

DC/DC Converters - Through Hole 2A 18-36Vin 15Vout

R-78K15-2.0L
RECOM Power
1: $5.88
411In Stock

Mfr. Part #
R-78K15-2.0L

Mouser Part #
919-R-78K15-2.0L

RECOM Power

DC/DC Converters - Through Hole 2A 18-36Vin 15Vout

Learn More

Datasheet

411In Stock

$5.88

$5.71

$5.62

$5.45

View

Min.: 1
Mult.: 1

Non-Isolated

1 Output

18 V

36 V

15 V

2 A

SIP-3

11.5 mm (0.453 in)

8.5 mm (0.335 in)

17.5 mm (0.689 in)

Industrial

R-78K-2.0

DC/DC Converters - Through Hole 4.5-36Vin 3.3Vout 2A

R-78K3.3-2.0
RECOM Power
1: $6.05
1,946In Stock

Mfr. Part #
R-78K3.3-2.0

Mouser Part #
919-R-78K3.3-2.0

RECOM Power

DC/DC Converters - Through Hole 4.5-36Vin 3.3Vout 2A

Learn More

Datasheet

1,946In Stock

$6.05

$5.83

$5.74

$5.61

View

Min.: 1
Mult.: 1

Non-Isolated

1 Output

4.5 V

36 V

3.3 V

2 A

SIP-3

11.5 mm (0.453 in)

7.55 mm (0.297 in)

10.2 mm (0.402 in)

Industrial

R-78K-2.0

DC/DC Converters - Through Hole 2A 4.5-36Vin 3.3Vout

R-78K3.3-2.0L
RECOM Power
1: $5.82
475In Stock

Mfr. Part #
R-78K3.3-2.0L

Mouser Part #
919-R-78K3.3-2.0L

RECOM Power

DC/DC Converters - Through Hole 2A 4.5-36Vin 3.3Vout

Learn More

Datasheet

475In Stock

$5.82

$5.71

$5.62

$5.26

View

Min.: 1
Mult.: 1

Non-Isolated

1 Output

4.5 V

36 V

3.3 V

2 A

SIP-3

11.5 mm (0.453 in)

8.5 mm (0.335 in)

17.5 mm (0.689 in)

Industrial

R-78K-2.0

DC/DC Converters - Through Hole 8-36Vin 6.5Vout 500mA

R-78K6.5-0.5
RECOM Power
1: $3.12
2,375In Stock

Mfr. Part #
R-78K6.5-0.5

Mouser Part #
919-R-78K6.5-0.5

RECOM Power

DC/DC Converters - Through Hole 8-36Vin 6.5Vout 500mA

Learn More

Datasheet

2,375In Stock

$3.12

$3.02

$2.98

$2.85

View

Min.: 1
Mult.: 1

Non-Isolated

1 Output

8 V

36 V

6.5 V

500 mA

SIP-3

11.5 mm (0.453 in)

7.55 mm (0.297 in)

10.2 mm (0.402 in)

Industrial

R-78K-0.5

DC/DC Converters - Through Hole 12-36Vin 9Vout 500mA

R-78K9.0-0.5
RECOM Power
1: $3.12
1,595In Stock
1,032Expected 8/7/2026

Mfr. Part #
R-78K9.0-0.5

Mouser Part #
919-R-78K9.0-0.5

RECOM Power

DC/DC Converters - Through Hole 12-36Vin 9Vout 500mA

Learn More

Datasheet

1,595In Stock

1,032Expected 8/7/2026

$3.12

$3.02

$2.98

$2.88

View

Min.: 1
Mult.: 1

Non-Isolated

1 Output

12 V

36 V

9 V

500 mA

SIP-3

11.5 mm (0.453 in)

7.55 mm (0.297 in)

10.2 mm (0.402 in)

Industrial

R-78K-0.5

DC/DC Converters - Through Hole 12-36Vin 9Vout 1A

R-78K9.0-1.0
RECOM Power
1: $3.95
866In Stock

Mfr. Part #
R-78K9.0-1.0

Mouser Part #
919-R-78K9.0-1.0

RECOM Power

DC/DC Converters - Through Hole 12-36Vin 9Vout 1A

Learn More

Datasheet

866In Stock

$3.95

$3.82

$3.76

$3.47

View

Min.: 1
Mult.: 1

Non-Isolated

1 Output

12 V

36 V

9 V

1 A

SIP-3

11.5 mm (0.453 in)

7.55 mm (0.297 in)

10.2 mm (0.402 in)

Industrial

R-78K-1.0

DC/DC Converters - Through Hole 2A 11-36Vin 9Vout

R-78K9.0-2.0L
RECOM Power
1: $5.88
780In Stock

Mfr. Part #
R-78K9.0-2.0L

Mouser Part #
919-R-78K9.0-2.0L

RECOM Power

DC/DC Converters - Through Hole 2A 11-36Vin 9Vout

Learn More

Datasheet

780In Stock

$5.88

$5.71

$5.62

$5.45

View

Min.: 1
Mult.: 1

Non-Isolated

1 Output

11 V

36 V

9 V

2 A

SIP-3

11.5 mm (0.453 in)

8.5 mm (0.335 in)

17.5 mm (0.689 in)

Industrial

R-78K-2.0

DC/DC Converters - Through Hole 2A 4.5-36Vin 1.2Vout

R-78K1.2-2.0L
RECOM Power
1: $5.82
105In Stock

Mfr. Part #
R-78K1.2-2.0L

Mouser Part #
919-R-78K1.2-2.0L

RECOM Power

DC/DC Converters - Through Hole 2A 4.5-36Vin 1.2Vout

Learn More

Datasheet

105In Stock

$5.82

$5.71

$5.62

$5.43

View

Min.: 1
Mult.: 1

Non-Isolated

1 Output

4.5 V

36 V

1.2 V

2 A

SIP-3

11.5 mm (0.453 in)

8.5 mm (0.335 in)

17.5 mm (0.689 in)

Industrial

R-78K-2.0

DC/DC Converters - Through Hole 4.5-36Vin 1.5Vout 500mA

R-78K1.5-0.5
RECOM Power
1: $3.12
97In Stock

Mfr. Part #
R-78K1.5-0.5

Mouser Part #
919-R-78K1.5-0.5

RECOM Power

DC/DC Converters - Through Hole 4.5-36Vin 1.5Vout 500mA

Learn More

Datasheet

97In Stock

$3.12

$3.02

$2.98

$2.87

View

Min.: 1
Mult.: 1

Non-Isolated

1 Output

4.5 V

36 V

1.5 V

500 mA

SIP-3

11.5 mm (0.453 in)

7.55 mm (0.297 in)

10.2 mm (0.402 in)

Industrial

R-78K-0.5

DC/DC Converters - Through Hole 4.5-36Vin 1.8Vout 500mA

R-78K1.8-0.5
RECOM Power
1: $3.12
112In Stock

Mfr. Part #
R-78K1.8-0.5

Mouser Part #
919-R-78K1.8-0.5

RECOM Power

DC/DC Converters - Through Hole 4.5-36Vin 1.8Vout 500mA

Learn More

Datasheet

112In Stock

$3.12

$3.02

$2.98

$2.95

View

Min.: 1
Mult.: 1

Non-Isolated

1 Output

4.5 V

36 V

1.8 V

500 mA

SIP-3

11.5 mm (0.453 in)

7.55 mm (0.297 in)

10.2 mm (0.402 in)

Industrial

R-78K-0.5

DC/DC Converters - Through Hole 4.5-36Vin 1.8Vout 2A

R-78K1.8-2.0
RECOM Power
1: $5.88
49In Stock

Mfr. Part #
R-78K1.8-2.0

Mouser Part #
919-R-78K1.8-2.0

RECOM Power

DC/DC Converters - Through Hole 4.5-36Vin 1.8Vout 2A

Learn More

Datasheet

49In Stock

$5.88

$5.71

$5.62

$5.34

View

Min.: 1
Mult.: 1

Non-Isolated

1 Output

4.5 V

36 V

1.8 V

2 A

SIP-3

11.5 mm (0.453 in)

7.55 mm (0.297 in)

10.2 mm (0.402 in)

Industrial

R-78K-2.0

DC/DC Converters - Through Hole 18-36Vin 15Vout 500mA

R-78K15-0.5
RECOM Power
1: $3.15
384In Stock

Mfr. Part #
R-78K15-0.5

Mouser Part #
919-R-78K15-0.5

RECOM Power

DC/DC Converters - Through Hole 18-36Vin 15Vout 500mA

Learn More

Datasheet

384In Stock

$3.15

$3.04

$2.99

$2.64

View

Min.: 1
Mult.: 1

Non-Isolated

1 Output

4.5 V

36 V

15 V

500 mA

SIP-3

11.5 mm (0.453 in)

7.55 mm (0.297 in)

10.2 mm (0.402 in)

Industrial

R-78K-0.5

DC/DC Converters - Through Hole 18-36Vin 15Vout 1A

R-78K15-1.0
RECOM Power
1: $3.91
331In Stock

Mfr. Part #
R-78K15-1.0

Mouser Part #
919-R-78K15-1.0

RECOM Power

DC/DC Converters - Through Hole 18-36Vin 15Vout 1A

Learn More

Datasheet

331In Stock

$3.91

$3.80

$3.75

$3.60

View

Min.: 1
Mult.: 1

Non-Isolated

1 Output

18 V

36 V

15 V

1 A

SIP-3

11.5 mm (0.453 in)

7.55 mm (0.297 in)

10.2 mm (0.402 in)

Industrial

R-78K-1.0

R-78K DC/DC Converters

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