30R185-PB Littelfuse Inc, 30R185-PB Datasheet

PTC Resettable Fuses 30V 1.85A-HD 40A MAX

30R185-PB

Manufacturer Part Number

30R185-PB

Description

PTC Resettable Fuses 30V 1.85A-HD 40A MAX

Manufacturer

Littelfuse Inc

Datasheet

1.30R700UMR.pdf (7 pages)

Specifications of 30R185-PB

Hold Current

1.85 Amps

Trip Current

3.7 Amps

Current Rating (max)

40 Amps

Resistance

0.09 Ohms

Maximum Voltage

30 VoltsDC

Termination Style

Radial

Mounting Style

Through Hole

Current Rating

40 Amps

Dimensions

10.2 mm W

Operating Temperature Range

- 40 C to + 85 C

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Current page: 1 of 7
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Speciﬁcations are subject to change without notice.

Please refer to www.littelfuse.com/series/30R.html for current information.

hold

trip

max

Agency Approvals

AGENCY

Electrical Characteristics

Part Number

= Power dissipated from device when in the tripped state at 23°C still air.

= Trip current: minimum current at which the device will trip in 23°C still air.

= Hold current: maximum current device will pass without tripping in 23°C still air.

= Maximum fault current device can withstand without damage at rated voltage (V

= Maximum voltage device can withstand without damage at rated current (I

30R090

30R250

30R300

30R400

30R500

30R600

30R700

30R800

30R900

30R135

30R160

30R185

30R110

30R Series

AGENCY FILE NUMBER

E183209

R50119318

3.00

4.00

5.00

6.00

8.00

9.00

0.90

1.35

1.60

1.85

2.50

1.10

7 .00

(A)

hold

10.00

12.00

14.00

16.00

18.00

2.20

2.70

3.20

3.70

5.00

6.00

8.00

1.80

(A)

trip

(Vdc)

max

Radial Leaded > 30R Series

POLYFUSE

(A)

max

Revised: October 24, 2008

max.

)

(W)

0.6

0.7

0.8

0.9

2.0

2.5

3.0

3.5

3.8

4.0

4.2

1.0

1.2

max

)

Resettable PTCs

Current

Caution: Operation beyond the speciﬁed rating may result in damage and possible arcing

and ﬂame.

15.00

20.00

25.00

30.00

35.00

40.00

Maximum Time

12.50

4.50

5.50

6.75

8.00

9.25

(A)

min

1max

Description

Features

Applications

provide overcurrent protection for low voltage (≤30V)

applications where space is not a concern and resettable

protection is preferred.

lead-free

and peripherals

= Minimum resistance of device in initial (un-soldered) state.

= Maximum resistance of device at 23°C measured one hour after tripping.

To Trip

(Sec.)

Time

10.30

10.80

12.70

14.50

16.00

18.80

20.00

17 .50

5.90

6.60

8.00

8.70

7 .30

0.070

0.050

0.040

0.030

0.020

0.005

0.010

(Ω)

Resistance

min

0.220

0.170

0.130

0.090

0.070

0.080

0.050

0.040

0.030

0.020

0.110

(Ω)

1max

epoxy polymer insulating

material meets UL 94V-0

requirements

Approvals

Agency

30R Series

Related parts for 30R185-PB

30R185-PB Summary of contents

Page 1

... Electrical Characteristics Part Number hold trip max (A) (A) (Vdc) 30R090 0.90 1.80 30 30R110 1.10 2.20 30 30R135 1.35 2.70 30 30R160 1.60 3.20 30 30R185 1.85 3.70 30 30R250 2.50 5.00 30 30R300 3.00 6.00 30 30R400 4.00 8.00 30 30R500 5.00 10.00 30 30R600 6.00 12.00 30 30R700 7 .00 14.00 ...

Page 2

... POLYFUSE Temperature Rerating -40°C -20°C Part Number 30R090 1.31 1.17 30R110 1.60 1.43 30R135 1.96 1.76 30R160 2.32 2.08 30R185 2.68 2.41 30R250 3.63 3.25 30R300 4.35 3.90 30R400 5.80 5.20 30R500 7 .25 6.50 30R600 8.70 7 .80 30R700 10.15 9.10 30R800 11 ...

Page 3

Soldering Parameters - Wave Soldering Refer to the condition recommended by the ﬂux manufacturer. Pre-Heating Zone Max. ramping rate should not exceed 4°C/Sec. Max. solder temperature should not Soldering Zone exceed 260°C Cooling Zone Cooling by natural convection in air. ...

Page 4

... Inches Max. Max. Max. 30R090 0.29 7 .40 0.48 30R110 0.29 7 .40 0.56 30R135 0.35 8.90 0.53 30R160 0.35 8.90 0.60 30R185 0.40 10.20 0.62 30R250 0.45 11.40 0.72 30R300 0.45 11.40 0.76 30R400 0.55 14.00 0.87 30R500 0.55 14.00 1.01 30R600 ...

Page 5

... VOLTAGE RATING (VDC) Packaging Part Number Ordering Number 30R090UU 30R090 30R090UPR 30R110UU 30R110 30R110UPR 30R135UU 30R135 30R135UPR 30R160UU 30R160 30R160UPR 30R185UU 30R185 30R185UPR 30R250UU 30R250 30R250UPR 30R300UU 30R300 30R300UPR 30R400UF 30R400 30R400UMR 30R500UF 30R500 30R500UMR 30R600UF 30R600 30R600UMR 30R700UF 30R700 30R700UMR ...

Page 6

... Abscissa to plane(kinked lead) Abscissa to top: 30R090-30R185 Abscissa to top: 30R250-30R900 Overall width w/o lead protrusion: 30R090-30R185 Overall width w/o lead protrusion: 30R250-30R900 Overall width w/ lead protrusion: 30R090-30R185 Overall width w/ lead protrusion: 30R250-30R900 Lead protrusion Protrusion of cut out Protrusion beyond hold–down tape ...

Page 7

Tape and Ammo Diagram Δh Δ ©2008 Littelfuse, Inc. ©2008 Littelfuse, Inc. Speciﬁcations are subject to change without notice. Please refer to www.littelfuse.com/series/30R.html for current information. POLYFUSE Resettable PTCs ...

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