MF-RM025/240X3 - BOURNS - Product.Network

Environmental Characteristics

Operating Temperature .................................... -20 °C to +85 °C

Humidity Aging................................................. +85 °C, 85 % R.H. 1000 hours .........................±20 % typical resistance change

Passive Aging .................................................. +85 °C, 1000 hours ...........................................±20 % typical resistance change

Vibration .......................................................... MIL-STD-883C, Method 2007.1,.......................No change

Condition A

Solvent Resistance .......................................... MIL-STD-202, Method 215 ...............................No change

Test Procedures And Requirements For Model MF-RM Series

Item Test Conditions Accept/Reject Criteria

Visual/Mechanical ............................................ Verify dimensions and material .........................Per MF physical description

Resistance ....................................................... In still air @ 23 °C .............................................Rmin ≤ R ≤ R1max

Time to Trip ...................................................... 240 Vac, specied current ................................T ≤ max. time to trip

Hold Current .................................................... At Ihold ..............................................................No trip

Trip Cycle Life .................................................. 240 Vac, Imax, 100 cycles ................................No arcing or burning

Trip Endurance ................................................ a) 240 Vac, Imax, 24 hours ..............................No arcing or burning

b) 265 Vac, Imax, 30 mins.

Solderability ..................................................... MIL-STD-202, Method 208 ...............................95 % min. coverage

UL File Number .....................E174545 ........... http://www.ul.com/ Follow link to Certications, then UL File No., enter E174545

TÜV Certicate Number ........50232433 ......... http://www.tuvdotcom.com/certicates/50232433?locale=en&page_number=3

Electrical Characteristics

Model

Typical Current

Trip Limit Vmax Imax Initial

Resistance

One Hour

Post-Trip

Resistance

Max.

Time to Trip

Tripped

Power

Dissipation

Ihold

at 23 °C

Itrip

at 23 °C

Operating

Voltage

Interrupt

Voltage

Interrupt

Current

RMin.

at 23 °C

R1 Max.

at 23 °C at 23 °C PD Typ.

at 23 °C

(A) (A) (Vac) (Vac) (A) (Ohms) (Ohms) (A) (Sec.) (W)

MF-RM005/240 0.05 0.12 240 265 1.0 18.50 65.00 0.25 10.0 0.9

MF-RM008/240 0.08 0.19 240 265 1.2 7.40 26.00 0.40 10.0 0.9

MF-RM012/240 0.12 0.30 240 265 1.2 3.00 12.00 0.60 15.0 1.0

MF-RM016/240 0.16 0.37 240 265 2.0 2.50 7.80 0.80 15.0 1.4

MF-RM025/240 0.25 0.56 240 265 3.5 1.30 3.80 1.25 18.5 1.5

MF-RM033/240 0.33 0.74 240 265 4.5 0.77 2.60 1.65 21.0 1.7

MF-RM040/240 0.40 0.90 240 265 5.5 0.60 1.90 2.00 24.0 2.0

MF-RM055/240 0.55 1.25 240 265 7.0 0.45 1.45 2.75 26.0 3.4

Features

n Radial leaded devices

n Cured, ﬂame retardant epoxy polymer

insulating material meets UL 94V-0

requirements

n Bulk packaging, tape and reel available

n Resettable circuit protection

n Agency recognition:

n RoHS compliant* and halogen free**

Applications

n Food blenders, coffee machines

n HVAC

n Electric fans, blowers

n AC adaptors

MF-RM Series - PTC Resettable Fuses

* RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.

** Bourns follows the prevailing deﬁnition of “halogen free” in the industry. Bourns considers a product to be “halogen free” if (a) the Bromine (Br) content is 900 ppm or less;

(b) the Chlorine (Cl) content is 900 ppm or less; and (c) the total Bromine (Br) and Chlorine (Cl) content is 1500 ppm or less.

Specifications are subject to change without notice.

Users should verify actual device performance in their specific applications.

The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.

*RoHS COMPLIANT

LEAD FREE

*RoHS COMPLIANT

**HALOGEN FREE

LEAD FREE

VERSIONS ARE

RoHS COMPLIANT*

MF-RX Series - PTC Resettable Fuses

Product Dimensions

Advantages

n Resettable feature with overtemperature and overcurrent protection

can save expensive components from having to be replaced after

tripping, e.g., transformers with built in thermal fuses

n Faster than bimetallic switch designs that take on average

approximately 30 seconds to cool down and reset

n Generally lower electromagnetic interference than bimetallic switches

Beneﬁts

n Reduced repair and replacement costs

n Reduced nuisance tripping

n Combined overcurrent and overtemperature protector in one device

Model A B C D E Physical Characteristics

Max. Max. Nom. Tol. ± Min. Max. Style Lead Dia. Material

MF-RM005/240 8.3 12.9 5.1 0.7 7.6 3.8

1 0.51

Sn/Cu

(0.327) (0.508) (0.201) (0.028) (0.299) (0.150) (0.020)

MF-RM008/240 8.3 12.9 5.1 0.7 7.6 3.8

1 0.51

Sn/Cu

(0.327) (0.508) (0.201) (0.028) (0.299) (0.150) (0.020)

MF-RM012/240 8.3 12.9 5.1 0.7 7.6 3.8

1 0.51

Sn/Cu

(0.327) (0.508) (0.201) (0.028) (0.299) (0.150) (0.020)

MF-RM016/240 9.9 13.8 5.1 0.7 7.6 3.8

1 0.51

Sn/Cu

(0.390) (0.543) (0.201) (0.028) (0.299) (0.150) (0.020)

MF-RM025/240 10.0 20.0 5.1 0.7 7.6 3.8

2 0.65

Sn/Cu

(0.394) (0.787) (0.201) (0.028) (0.299) (0.150) (0.026)

MF-RM033/240 11.4 20.0 5.1 0.7 7.6 3.8

2 0.65

Sn/Cu

(0.449) (0.787) (0.201) (0.028) (0.299) (0.150) (0.026)

MF-RM040/240 11.5 20.9 5.1 0.7 7.6 3.8

2 0.65

Sn/Cu

(0.453) (0.823) (0.201) (0.028) (0.299) (0.150) (0.026)

MF-RM055/240 14.0 22.4 5.1 0.7 7.6 4.1

2 0.81

Sn/Cu

(0.551) (0.882) (0.201) (0.028) (0.299) (0.161) (0.032)

Packaging options:

BULK: 500 pcs. per bag.

TAPE & REEL: 2000 pcs. per reel (MF-RM005/240~MF-RM040/240); 1000 pcs. per reel (MF-RM055/240)

LEAD

DIA. C

LEAD

DIA. C

ATypical Part Marking

Represents total content. Layout may vary.

RM055

0220S

MANUFACTURER'S

TRADEMARK

PART

IDENTIFICATION

DATE CODE

(FIRST DIGIT =

LAST DIGIT OF YEAR;

NEXT THREE DIGITS =

DAY OF YEAR)

COUNTRY OF

MANUFACTURE

(T = TAIWAN

S = CHINA)

Specifications are subject to change without notice.

Users should verify actual device performance in their

specific applications.

The products described herein and this document are

subject to specific legal disclaimers as set forth on the

last page of this document, and at www.bourns.com/

docs/legal/disclaimer.pdf.

MF-RM Series - PTC Resettable Fuses

Thermal Derating Chart - Ihold (Amps)

Model Ambient Operating Temperature

-20 ºC 0 ºC 23 ºC 40 ºC 50 ºC 60 ºC 70 ºC 85 ºC

MF-RM005/240 0.08 0.06 0.05 0.04 0.04 0.03 0.03 0.02

MF-RM008/240 0.12 0.10 0.08 0.07 0.06 0.05 0.04 0.03

MF-RM012/240 0.18 0.15 0.12 0.10 0.09 0.07 0.06 0.04

MF-RM016/240 0.24 0.20 0.16 0.13 0.11 0.10 0.08 0.05

MF-RM025/240 0.38 0.32 0.25 0.21 0.18 0.15 0.13 0.09

MF-RM033/240 0.50 0.42 0.33 0.27 0.23 0.20 0.17 0.11

MF-RM040/240 0.61 0.51 0.40 0.33 0.28 0.24 0.20 0.14

MF-RM055/240 0.80 0.68 0.55 0.46 0.40 0.35 0.29 0.22

0.51 (24AWG)

0.65 (22AWG)

0.81 (20AWG)

Style 1 Style 2

DIMENSIONS: MM

(INCHES)

Also available with straight leads (see How to Order).

How to Order

MF - RM 005 / 240 - 2 - 17

Multifuse®

Product

Designator

Series

RM = Radial Leaded

Component

Hold Current, Ihold

005-055 (0.05 A - 0.55 A)

Operating Voltage, Vmax

240 = 240 Vac

Packaging Options

- 0 = Bulk Packaging

- 2 = Tape and Reel

Part Number Sufx Option

- 17 = Straight Leads in Place of

Standard Kinked Leads

*Packaged per EIA486-B

Typical Time to Trip at 23 ˚C

100

0.1

Fault Current (Amps)

Time to Trip (Seconds)

A = MF-RM005/240

B = MF-RM008/240

C = MF-RM012/240

D = MF-RM016/240

E = MF-RM025/240

F = MF-RM033/240

G = MF-RM040/240

H = MF-RM055/240

ABCDEF G H

DIMENSIONS: MM

(INCHES)

MF-RM SERIES, REV. F, 09/16

Specifications are subject to change without notice.

Users should verify actual device performance in their specific applications.

The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.

MF-RM Series - PTC Resettable Fuses

IEC EIA Dimensions

Dimension Description Mark Mark Dimensions Tolerance

Carrier tape width W W 18 -0.5/+1.0

(.709) (-0.02/+.039)

Hold down tape width W0 W4 11 min.

(.433)

Hold down tape No protrusion

Top distance between tape edges W2W63max.

(.118)

Sprocket hole position W1W59 -0.5/+0.75

(.354) (-0.02/+0.03)

Sprocket hole diameter D0D04 ±0.2

(.157) (±.079)

Abscissa to plane (MF-RM005/240~MF-RM016/240) H H 18.5 ±3.0

(.728) (±.118)

Abscissa to plane (MF-RM025/240~MF-RM055/240) H0H016 ±0.5

(.63) (±.02)

Abscissa to top (MF-RM005/240~MF-RM016/240) H1H1 32.2 max.

(1.268)

Abscissa to top (MF-RM025/240~MF-RM055/240) H1H1 45.0 max.

(1.772)

Overall width w/lead protrusion (MF-RM005/240~MF-RM016/240) C1 43.2 max.

(1.701)

Overall width w/lead protrusion (MF-RM025/240~MF-RM055/240) C1 56.0 max.

(2.205)

Overall width w/o lead protrusion (MF-RM005/240~MF-RM016/240) C242.5 max.

(1.673)

Overall width w/o lead protrusion (MF-RM025/240~MF-RM055/240) C256.0 max.

(2.205)

Lead protrusion I1L1 1.0 max.

(.039)

Protrusion of cutout L L 11 max.

(.433)

Protrusion beyond hold-down tape I2I2 Notspecied

Sprocket hole pitch P0P0 12.7 ±0.3

(.500) (±.012)

Pitch tolerance 20 consecutive ±1

(±.039)

Device pitch (MF-RM005/240-MF-RM040/240) 12.7 ±0.3

(.500) (±.012)

Device pitch (MF-RM055/240) 25.4 ±0.6

(1.00) (±.024)

Tape thickness t t 0.9 max.

(.035)

Tape thickness with splice (MF-RM005/240~MF-RM040/240) t11.5 max.

(.059)

Tape thickness with splice (MF-RM055/240) t12.3 max.

(.091)

Splice sprocket hole alignment 0 ±0.3

(±.012)

Body lateral deviation Δh Δh0±1

(±.039)

Body tape plane deviation Δp Δp0±0.3

(±.012)

Lead seating plane deviation ΔP1P1 3.81 ±0.7

(.015) (±.028)

Lead spacing F F 5.08 +0.8/-0.5

(.200) (+.031/-.020)

MF-RM Series Tape and Reel Speciﬁcations

Devices taped using EIA468–B/IEC60286-2 standards. See table below and Figures 1 and 2 for details.

DIMENSIONS: MM

(INCHES)

Specifications are subject to change without notice.

Users should verify actual device performance in their specific applications.

The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.

Reel

Upper side

Tape

Lower side

User

direction

feed

User direction of feed

Cross section A - B

Reference plane

H0W1

IEC EIA Dimensions

Dimension Description Mark Mark Dimensions Tolerance

Reel width (MF-RM005/240~MF-RM040/240) w w256.0 max.

(2.20)

Reel width (MF-RM055/240) w w263.5 max.

(2.50)

Reel diameter d a 370.0 max.

(14.57)

Spacebetweenanges(MF-RM005/240~MF-RM040/240) h w148.0 max.

(1.89)

Spacebetweenanges(MF-RM055/240) h w155.0 max.

(2.17)

Arbor hole diameter f c 26.0 ±12.0

(1.02) (±.472)

Core diameter h n 91.0 max.

(3.58)

Box 64 372 372 max.

(2.5) (14.6) (14.6)

Consecutive missing places 3 max.

Empty places per reel 0.1 % max.

MF-RM Series Tape and Reel Speciﬁcations

Taped Component Dimensions - Figure 1

Reel Dimensions - Figure 2

Reel

Upper side

Tape

Lower side

User

direction

feed

User direction of feed

Cross section A - B

Reference plane

H0W1

DIMENSIONS: MM

(INCHES)

Specifications are subject to change without notice.

Users should verify actual device performance in their specific applications.

The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.

3312 - 2 mm SMD Trimming Potentiometer

Application Notice

MFAN 12/18

Speciﬁcations are subject to change without notice.

Users should verify actual device performance in their speciﬁc applications.

The products described herein and this document are subject to speciﬁc legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.

Bourns® Multifuse® PPTC Resettable Fuses

• Users are responsible for independent and adequate evaluation of Bourns® Multifuse® Polymer PTC devices in the user’s

application, including the PPTC device characteristics stated in the applicable data sheet.

• Polymer PTC devices must not be allowed to operate beyond their stated maximum ratings. Operation in excess of such

maximum ratings could result in damage to the PTC device and possibly lead to electrical arcing and/or re. Circuits with

inductance may generate a voltage above the rated voltage of the polymer PTC device and should be thoroughly evaluated

within the user’s application during the PTC selection and qualication process.

• Polymer PTC devices are intended to protect against adverse effects of temporary overcurrent or overtemperature

conditions up to rated limits and are not intended to serve as protective devices where overcurrent or overvoltage conditions

are expected to be repetitive or prolonged.

• In normal operation, polymer PTC devices experience thermal expansion under fault conditions. Thus, a polymer PTC

device must be protected against mechanical stress, and must be given adequate clearance within the user’s application to

accommodate such thermal expansion. Rigid potting materials or xed housings or coverings that do not provide adequate

clearance should be thoroughly examined and tested by the user, as they may result in the malfunction of polymer PTC

devices if the thermal expansion is inhibited.

• Exposure to lubricants, silicon-based oils, solvents, gels, electrolytes, acids, and other related or similar materials may

adversely affect the performance of polymer PTC devices.

• Aggressive solvents may adversely affect the performance of polymer PTC devices. Conformal coating, encapsulating,

potting, molding, and sealing materials may contain aggressive solvents including but not limited to xylene and toluene,

which are known to cause adverse effects on the performance of polymer PTCs. Such aggressive solvents must be

thoroughly cured or baked to ensure their complete removal from polymer PTCs to minimize the possible adverse effect

on the device.

• Recommended storage conditions should be followed at all times. Such conditions can be found on the applicable data

sheet and on the Multifuse® Polymer PTC Moisture/Reow Sensitivity Classication (MSL) note:

https://www.bourns.com/docs/RoHS-MSL/msl_mf.pdf

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bilingual versions are available at:

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PDF: http://www.bourns.com/docs/Legal/disclaimer.pdf

C1753 05/17/18R