DC/DC Converters - Through Hole

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MEF1 Isolated 1W Single Output DC/DC Converters

Murata Power Solutions MEF1 Isolated 1W Regulated Single Output DC/DC Converters are used where a tightly regulated supply is required by offering an output regulation of <1%. The MEF1 components are fully encapsulated with toroidal magnetics in an SMD-constructed package with through hole mounting and short-circuit protection. The single rail regulated output makes them an ideal choice for power sensors; such as pressure transducers, hall effect sensors, and mass air-flow sensors.

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Part #

DC/DC Converters - Through Hole 1W 12VIN 5VOUT DC/DC

MEF1S1205SP3C
Murata Power Solutions
1: $5.86
291In Stock

Mfr. Part No.
MEF1S1205SP3C

Mouser Part No
580-MEF1S1205SP3C

Murata Power Solutions

DC/DC Converters - Through Hole 1W 12VIN 5VOUT DC/DC

Learn More

Datasheet

291In Stock

$5.86

$5.75

$5.66

$4.79

Min.: 1
Mult.: 1

Isolated

1 Output

1 W

5 V

200 mA

3.5 kV

19.65 mm (0.774 in)

6.15 mm (0.242 in)

10.15 mm (0.4 in)

Medical, Industrial

+ 85 C

- 40 C

MEF1

DC/DC Converters - Through Hole 1W 3.3VIN 3.3VOUT DC/DC

MEF1S0303SP3C
Murata Power Solutions
1: $6.09
10In Stock
50Expected 23/11/2026

Mfr. Part No.
MEF1S0303SP3C

Mouser Part No
580-MEF1S0303SP3C

Murata Power Solutions

DC/DC Converters - Through Hole 1W 3.3VIN 3.3VOUT DC/DC

Learn More

Datasheet

10In Stock

50Expected 23/11/2026

$6.09

$5.86

$5.67

$5.06

View

Min.: 1
Mult.: 1

Isolated

1 Output

1 W

3.3 V

303 mA

3.5 kV

19.65 mm (0.774 in)

6.15 mm (0.242 in)

10.15 mm (0.4 in)

+ 85 C

- 40 C

MEF1

DC/DC Converters - Through Hole 1W 3.3VIN 5VOUT DC/DC

MEF1S0305SP3C
Murata Power Solutions
1: $5.86
53In Stock

Mfr. Part No.
MEF1S0305SP3C

Mouser Part No
580-MEF1S0305SP3C

Murata Power Solutions

DC/DC Converters - Through Hole 1W 3.3VIN 5VOUT DC/DC

Learn More

Datasheet

53In Stock

$5.86

$5.76

$5.67

$5.43

View

Min.: 1
Mult.: 1

Isolated

1 Output

1 W

5 V

200 mA

3.5 kV

19.65 mm (0.774 in)

6.15 mm (0.242 in)

10.15 mm (0.4 in)

Medical, Industrial

+ 85 C

- 40 C

MEF1

DC/DC Converters - Through Hole 4.75-5.25VIN 3.3VOUT 1W

MEF1S0503SP3C
Murata Power Solutions
1: $5.92
28In Stock

Mfr. Part No.
MEF1S0503SP3C

Mouser Part No
580-MEF1S0503SP3C

Murata Power Solutions

DC/DC Converters - Through Hole 4.75-5.25VIN 3.3VOUT 1W

Learn More

Datasheet

28In Stock

$5.92

$5.75

$5.67

$5.65

View

Min.: 1
Mult.: 1

Isolated

1 Output

1 W

3.3 V

303 mA

3.5 kV

19.65 mm (0.774 in)

6.15 mm (0.242 in)

10.15 mm (0.4 in)

+ 85 C

- 40 C

MEF1

DC/DC Converters - Through Hole DC/DC TH 1W 12V-3.3V SIP Single

MEF1S1203SP3C
Murata Power Solutions
1: $5.92
49In Stock

Mfr. Part No.
MEF1S1203SP3C

Mouser Part No
580-MEF1S1203SP3C

Murata Power Solutions

DC/DC Converters - Through Hole DC/DC TH 1W 12V-3.3V SIP Single

Learn More

Datasheet

49In Stock

$5.92

$5.75

$5.66

$5.46

View

Min.: 1
Mult.: 1

Isolated

1 Output

1 W

3.3 V

303 mA

3.5 kV

19.65 mm (0.774 in)

6.15 mm (0.242 in)

10.15 mm (0.4 in)

Medical, Industrial

+ 85 C

- 40 C

MEF1

DC/DC Converters - Through Hole DC/DC TH 1W 24V-3.3V SIP Single

MEF1S2403SP3C
Murata Power Solutions
1: $5.92
75In Stock
100Expected 01/03/2027

Mfr. Part No.
MEF1S2403SP3C

Mouser Part No
580-MEF1S2403SP3C

Murata Power Solutions

DC/DC Converters - Through Hole DC/DC TH 1W 24V-3.3V SIP Single

Learn More

Datasheet

75In Stock

100Expected 01/03/2027

$5.92

$5.75

$5.66

$5.48

View

Min.: 1
Mult.: 1

Isolated

1 Output

1 W

3.3 V

303 mA

3.5 kV

19.65 mm (0.774 in)

6.15 mm (0.242 in)

10.15 mm (0.4 in)

Medical, Industrial

+ 85 C

- 40 C

MEF1

DC/DC Converters - Through Hole 1W 24VIN 5VOUT DC/DC

MEF1S2405SP3C
Murata Power Solutions
1: $5.92
98In Stock
400On Order

Mfr. Part No.
MEF1S2405SP3C

Mouser Part No
580-MEF1S2405SP3C

Murata Power Solutions

DC/DC Converters - Through Hole 1W 24VIN 5VOUT DC/DC

Learn More

Datasheet

98In Stock

400On Order

$5.92

$5.75

$5.66

$5.48

View

Min.: 1
Mult.: 1

Isolated

1 Output

1 W

5 V

200 mA

3.5 kV

19.65 mm (0.774 in)

6.15 mm (0.242 in)

10.15 mm (0.4 in)

Medical, Industrial

+ 85 C

- 40 C

MEF1

DC/DC Converters - Through Hole 1W 24VIN 5VOUT DC/DC

MEF1S2405SPC
Murata Power Solutions
1: $5.33
73In Stock
50Expected 05/10/2026

Mfr. Part No.
MEF1S2405SPC

Mouser Part No
580-MEF1S2405SPC

Murata Power Solutions

DC/DC Converters - Through Hole 1W 24VIN 5VOUT DC/DC

Learn More

Datasheet

73In Stock

50Expected 05/10/2026

$5.33

$5.23

$5.15

$5.14

View

Min.: 1
Mult.: 1

Isolated

1 Output

1 W

5 V

200 mA

1 kV

19.65 mm (0.774 in)

6.15 mm (0.242 in)

10.15 mm (0.4 in)

Medical, Industrial

+ 85 C

- 40 C

MEF1

DC/DC Converters - Through Hole 1W 5VIN 5VOUT DC/DC

MEF1S0505SP3C
Murata Power Solutions
1: $5.84
2,199On Order

Mfr. Part No.
MEF1S0505SP3C

Mouser Part No
580-MEF1S0505SP3C

Murata Power Solutions

DC/DC Converters - Through Hole 1W 5VIN 5VOUT DC/DC

Learn More

Datasheet

2,199On Order

$5.84

$5.69

$5.33

$4.98

View

Min.: 1
Mult.: 1

Isolated

1 Output

1 W

5 V

200 mA

3.5 kV

19.65 mm (0.774 in)

6.15 mm (0.242 in)

10.15 mm (0.4 in)

Medical, Industrial

+ 85 C

- 40 C

MEF1

DC/DC Converters - Through Hole 1W 5VIN 5VOUT DC/DC

MEF1S0505SPC
Murata Power Solutions
1: $5.55
605Expected 05/10/2026

Mfr. Part No.
MEF1S0505SPC

Mouser Part No
580-MEF1S0505SPC

Murata Power Solutions

DC/DC Converters - Through Hole 1W 5VIN 5VOUT DC/DC

Learn More

Datasheet

605Expected 05/10/2026

$5.55

$5.39

$5.31

$4.95

View

Min.: 1
Mult.: 1

Isolated

1 Output

1 W

5 V

200 mA

1 kV

19.65 mm (0.774 in)

6.15 mm (0.242 in)

10.15 mm (0.4 in)

Medical, Industrial

+ 85 C

- 40 C

MEF1

DC/DC Converters - Through Hole DC/DC TH 1W 3.3V-3.3V SIP Single

MEF1S0303SPC
Murata Power Solutions
1: $5.38
48Expected 30/11/2026

Mfr. Part No.
MEF1S0303SPC

Mouser Part No
580-MEF1S0303SPC

Murata Power Solutions

DC/DC Converters - Through Hole DC/DC TH 1W 3.3V-3.3V SIP Single

Learn More

Datasheet

48Expected 30/11/2026

$5.38

$5.23

$5.15

$4.98

View

Min.: 1
Mult.: 1

Isolated

1 Output

1 W

3.3 V

303 mA

1 kV

19.65 mm (0.774 in)

6.15 mm (0.242 in)

10.15 mm (0.4 in)

Medical, Industrial

+ 85 C

- 40 C

MEF1

DC/DC Converters - Through Hole 1W 3.3V-5V SIP SINGLE

MEF1S0305SPC
Murata Power Solutions
1: $5.38
8Expected 23/11/2026

Mfr. Part No.
MEF1S0305SPC

Mouser Part No
580-MEF1S0305SPC

Murata Power Solutions

DC/DC Converters - Through Hole 1W 3.3V-5V SIP SINGLE

Learn More

Datasheet

8Expected 23/11/2026

$5.38

$5.23

$5.15

$4.98

View

Min.: 1
Mult.: 1

Isolated

1 Output

1 W

5 V

200 mA

1 kV

19.65 mm (0.774 in)

6.15 mm (0.242 in)

10.15 mm (0.4 in)

Medical, Industrial

+ 85 C

- 40 C

MEF1

DC/DC Converters - Through Hole DC/DC TH 1W 5V-3.3V SIP Single

MEF1S0503SPC
Murata Power Solutions
1: $5.33
49Expected 09/10/2026

Mfr. Part No.
MEF1S0503SPC

Mouser Part No
580-MEF1S0503SPC

Murata Power Solutions

DC/DC Converters - Through Hole DC/DC TH 1W 5V-3.3V SIP Single

Learn More

Datasheet

49Expected 09/10/2026

$5.33

$5.23

$5.15

$4.87

View

Min.: 1
Mult.: 1

Isolated

1 Output

1 W

3.3 V

303 mA

1 kV

19.65 mm (0.774 in)

6.15 mm (0.242 in)

10.15 mm (0.4 in)

Medical, Industrial

+ 85 C

- 40 C

MEF1

DC/DC Converters - Through Hole 1W 12VIN 3.3VOUT DC/DC

MEF1S1203SPC
Murata Power Solutions
1: $5.33
150Expected 10/05/2027

Mfr. Part No.
MEF1S1203SPC

Mouser Part No
580-MEF1S1203SPC

Murata Power Solutions

DC/DC Converters - Through Hole 1W 12VIN 3.3VOUT DC/DC

Learn More

Datasheet

150Expected 10/05/2027

$5.33

$5.23

$5.15

$4.83

View

Min.: 1
Mult.: 1

Isolated

1 Output

1 W

3.3 V

303 mA

1 kV

19.65 mm (0.774 in)

6.15 mm (0.242 in)

10.15 mm (0.4 in)

Medical, Industrial

+ 85 C

- 40 C

MEF1

DC/DC Converters - Through Hole 1W 24VIN 3.3VOUT DC/DC

MEF1S2403SPC
Murata Power Solutions
1: $5.33
50Expected 14/12/2026

Mfr. Part No.
MEF1S2403SPC

Mouser Part No
580-MEF1S2403SPC

Murata Power Solutions

DC/DC Converters - Through Hole 1W 24VIN 3.3VOUT DC/DC

Learn More

Datasheet

50Expected 14/12/2026

$5.33

$5.23

$5.15

$4.93

View

Min.: 1
Mult.: 1

Isolated

1 Output

1 W

3.3 V

303 mA

1 kV

19.65 mm (0.774 in)

6.15 mm (0.242 in)

10.15 mm (0.4 in)

Medical, Industrial

+ 85 C

- 40 C

MEF1

DC/DC Converters - Through Hole DC/DC TH 1W 12V-5V SIP Single

MEF1S1205SPC
Murata Power Solutions
1: $5.38
84Factory Stock Available

Mfr. Part No.
MEF1S1205SPC

Mouser Part No
580-MEF1S1205SPC

Murata Power Solutions

DC/DC Converters - Through Hole DC/DC TH 1W 12V-5V SIP Single

Learn More

Datasheet

84Factory Stock Available

More Info Available

$5.38

$5.23

$5.15

$5.00

View

Min.: 1
Mult.: 1

Isolated

1 Output

1 W

5 V

200 mA

1 kV

19.65 mm (0.774 in)

6.15 mm (0.242 in)

10.15 mm (0.4 in)

Medical, Industrial

+ 85 C

- 40 C

MEF1

MEF1 Isolated 1W Single Output DC/DC Converters

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