Datasheet

ManualsBrandsBOURNS ManualsFusesPTC fuse Current I(H) 0.18 A 250 V (L x W x H) 18.3 x 11 x 4.6 mm 1 pc(s)

Features

■ Radial leaded devices

■ Fast tripping resettable PTCs

■ Binned and sorted narrow resistance

ranges available

■ RoHS compliant*

■ Agency recognition:

Applications

■ Customer Premise Equipment (CPE)

■ Central Ofﬁ ce / Telecom Centers (CO)

■ Access equipment

MF-RX/250 Series - Telecom PTC Resettable Fuses

*RoHS Directive 2002/95/EC Jan 27, 2003 including Annex.

Speciﬁ cations are subject to change without notice.

Customers should verify actual device performance in their speciﬁ c applications.

*RoHS COMPLIANT

RX012

24001K

Environmental Characteristics

Operating/Storage Temperature ........................... -40 °C to +85 °C

Maximum Device Surface Temperature

in Tripped State ................................................ 125 °C

Passive Aging ....................................................... +85 °C, 1000 hours .............................................. ±15 % typical resistance change

.......................................................................... +60°C, 1000 hours ................................................ ±15 % typical resistance change

Humidity Aging ..................................................... +85 °C, 85 % R.H. 500 hours ............................... ±15 % typical resistance change

Thermal Shock ..................................................... MIL-STD-202F, Method 107G, ............................. ±10 % typical resistance change

.......................................................................... +125 °C to -55 °C,10 times .................................. ±15 % typical resistance change

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

Lead Solerability ................................................... ANSI/J-STD-002 ................................................... >95 % coverage

Flammability ......................................................... IEC 695-2-2 .......................................................... No Flame for 60 secs.

Vibration ............................................................... MIL-STD-883C, Method 2007.1, Condition A ...... ±5 % typical resistance change

Test Procedures And Requirements For Model MF-RX/250 Series

Test Test Conditions Accept/Reject Criteria

Visual/Mech. .................................................... Verify dimensions and materials ...................... Per MF physical description

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

Time to Trip ...................................................... 5 times Ihold, Vmax, 23 °C .............................. T ≤ max. time to trip (seconds)

Hold Current .................................................... 30 min. at Ihold ................................................ No trip

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

Trip Endurance ................................................ Vmax, 48 hours ................................................ No arcing or burning

UL File Number ............................................... E 174545S

CSA File Number ............................................. CA 110338

TÜV File Number ............................................. R2057213

Electrical Characteristics

Model

Max.

Operating

Voltage

(Vdc)

Max. Interrupt

Ratings

Hold Current Initial Resistance

One Hour

Post-Trip

Resistance

Volts

(Vrms)

Amps

(A)

Amps

at 23 °C

Ohms

at 23 °C

Ohms

at 23 °C

Ohms

at 23 °C

Max. Max. I

Min. Max. Max.

MF-RX012/250 60 250 3.0 0.12 4.0 8.0 16.0

MF-RX012/250-A 60 250 3.0 0.12 7.0 9.0 16.0

MF-RX012/250-C 60 250 3.0 0.12 5.5 7.5 14.0

MF-RX012/250-F 60 250 3.0 0.12 6.0 10.5 16.0

MF-RX012/250-1 60 250 3.0 0.12 6.0 9.0 16.0

MF-RX012/250-2 60 250 3.0 0.12 8.0 10.5 16.0

MF-RX012/250-T 60 250 3.0 0.12 7.0 12.0 16.0

MF-RX012/250U 60 250 3.0 0.12 6.0 10.0 16.0

MF-RX014/250 60 250 3.0 0.145 3.0 6.0 14.0

MF-RX014/250-A 60 250 3.0 0.145 3.0 5.5 12.0

MF-RX014/250-B 60 250 3.0 0.145 4.5 6.0 14.0

MF-RX014/250-T 60 250 3.0 0.145 5.4 7.5 14.0

MF-RX014/250U 60 250 3.0 0.145 3.5 6.5 12.0

MF-RX018/250 60 250 10.0 0.18 0.8 2.0 4.0

MF-RX018/250U 60 250 10.0 0.18 0.8 2.0 4.0

“U” sufﬁ x indicates product without insulation coating.

Summary of content (5 pages)

PAGE 1
PL IA NT CO M *R oH S RX0 240012 1K Features Applications ■ Radial leaded devices ■ Customer Premise Equipment (CPE) ■ Fast tripping resettable PTCs ■ Central Office / Telecom Centers (CO) ■ Binned and sorted narrow resistance ■ Access equipment ranges available ■ RoHS compliant* ■ Agency recognition: MF-RX/250 Series - Telecom PTC Resettable Fuses Electrical Characteristics Model Max.
PAGE 2
Additional Features ■ Ability to withstand AC power cross conditions ■ Assists equipment with meeting ITU-T K.20/K.21/K.45 ■ Assists equipment with meeting Telcordia GR-1089-C Intrabuilding MF-RX/250 Series - Telecom PTC Resettable Fuses Thermal Derating Chart - Ihold (Amps) Ambient Operating Temperature Model -40 ºC -20 ºC 0 ºC 23 ºC 40 ºC 50 ºC 60 ºC 70 ºC 85 ºC MF-RX012/250 0.186 0.165 0.143 0.120 0.099 0.088 0.077 0.066 0.050 MF-RX014/250 0.225 0.199 0.172 0.145 0.119 0.
PAGE 3
MF-RX/250 Series - Telecom PTC Resettable Fuses How to Order Typical Time to Trip at 23 ˚C MF - RX 012/250 U - A 5 - 2 1000 ® Multifuse Product Designator Hold Current, Ihold 008-018 (0.08-0.18 Amps) Max.
PAGE 4
MF-R, MF-R/90, MF-R/600, MF-RX, MF-RX/72 & MF-RX/250 Series Tape and Reel Specifications Devices taped using EIA468–B/IEC286-2 standards. See table below and Figures 1 and 2 for details. IEC Mark EIA Mark Carrier tape width W W Hold down tape width W0 W4 Dimension Description Hold down tape Top distance between tape edges Dimensions Dimensions Tolerance 18 -0.5/+1.0 (.709) (-0.02/+.039) 11 min. (.
PAGE 5
MF-R, MF-R/90, MF-R/600, MF-RX, MF-RX/72 & MF-RX/250 Series Tape and Reel Specifications IEC Mark EIA Mark Lead spacing: MF-R, MF-R/90, MF-R/600, MF-RX, MF-RX/72 F F Lead spacing: MF-RX/250 F F Reel width w W2 Reel diameter d a W1 h Arbor hole diameter f c Core diameter: MF-R, MF-RX, MF-R/90 h n Core diameter: MF-RX/250, MF-R/600 h n Dimension Description Space between flanges less device Dimensions Dimensions Tolerance 5.08 ±0.2 (0.2) (±0.008) 5.08 -0.5/+0.6 (0.2) (-.020/+.