MF-R300-0-17 - Bourns, Inc.

*RoHS Directive 2002/95/EC Jan 27 2003 including Annex. Product manufactured with a date code later than April 1, 2005 is RoHS compliant.

Specifications are subject to change without notice.

Customers should verify actual device performance in their specific applications.

MF-R Series - PTC Resettable Fuses

0180T

1 Hour (R1) Max. Time Tripped

Ihold Itrip Initial Post-Trip To Trip Power

Resistance Resistance Dissipation

Model Amperes Ohms Ohms Amperes Seconds Watts

V max. I max.

at 23 °C at 23 °C at 23 °C at 23 °C at 23 °C at 23 °C

Volts Amps

Hold Trip Min. Max. Max. Typ.

MF-R005** 60 40 0.05 0.10 7.3 11.1 22.0 0.5 5.0 0.22

MF-R010 60 40 0.10 0.20 2.50 4.50 7.50 0.5 4.0 0.38

MF-R017 60 40 0.17 0.34 2.00 3.20 8.00 0.85 3.0 0.48

MF-R020 60 40 0.20 0.40 1.50 2.84 4.40 1.0 2.2 0.40

MF-R025 60 40 0.25 0.50 1.00 1.95 3.00 1.25 2.5 0.45

MF-R030 60 40 0.30 0.60 0.76 1.36 2.10 1.5 3.0 0.50

MF-R040 60 40 0.40 0.80 0.52 0.86 1.29 2.0 3.8 0.55

MF-R050 60 40 0.50 1.00 0.41 0.77 1.17 2.5 4.0 0.75

MF-R065 60 40 0.65 1.30 0.27 0.48 0.72 3.25 5.3 0.90

MF-R075 60 40 0.75 1.50 0.18 0.40 0.60 3.75 6.3 0.90

MF-R090 60 40 0.90 1.80 0.14 0.31 0.47 4.5 7.2 1.00

MF-R090-0-9 30 40 0.90 1.80 0.07 0.12 0.22 4.5 5.9 0.60

MF-R110 30 40 1.10 2.20 0.10 0.18 0.27 5.5 6.6 0.70

MF-R135 30 40 1.35 2.70 0.065 0.115 0.17 6.75 7.3 0.80

MF-R160 30 40 1.60 3.20 0.055 0.105 0.15 8.0 8.0 0.90

MF-R185 30 40 1.85 3.70 0.040 0.07 0.11 9.25 8.7 1.00

MF-R250 30 40 2.50 5.00 0.025 0.048 0.07 12.5 10.3 1.20

MF-R250-0-10 30 40 2.50 5.00 0.025 0.048 0.07 12.5 10.3 1.20

MF-R300 30 40 3.00 6.00 0.020 0.05 0.08 15.0 10.8 2.00

MF-R400 30 40 4.00 8.00 0.010 0.03 0.05 20.0 12.7 2.50

MF-R500 30 40 5.00 10.00 0.010 0.03 0.05 25.0 14.5 3.00

MF-R600 30 40 6.00 12.00 0.005 0.02 0.04 30.0 16.0 3.50

MF-R700 30 40 7.00 14.00 0.005 0.02 0.03 35.0 17.5 3.80

MF-R800 30 40 8.00 16.00 0.005 0.02 0.03 40.0 18.8 4.00

MF-R900 30 40 9.00 18.00 0.005 0.01 0.02 45.0 ***20.0 4.20

MF-R1100 16 100 11.00 22.00 0.003 0.01 0.014 40.0 20.0 4.50

Electrical Characteristics

Features

■Radial Leaded Devices

■Cured, flame retardant epoxy polymer

insulating material meets UL 94V-0

requirements

■RoHS compliant*

■Agency recognition:

Applications

Almost anywhere there is a low voltage

power supply and a load to be protected,

including:

■Computers & peripherals

■General electronics

■Automotive applications

***Tested at 40 amps**CSA approval pending.

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

Maximum Device Surface Temperature

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

Passive Aging......................................................+85 °C, 1000 hours ....................................±5 % typical resistance change

Humidity Aging....................................................+85 °C, 85 % R.H. 1000 hours....................±5 % typical resistance change

Thermal Shock ....................................................-40 °C to +85 °C, 10 times..........................±10 % typical resistance change

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

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

Condition A

Environmental Characteristics

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

Test Procedures And Requirements For Model MF-R Series

TV Rheinland

*RoHS COMPLIANT

Specifications are subject to change without notice.

Customers should verify actual device performance in their specific applications.

A B C D E Physical Characteristics

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

MF-R005 8.0 8.3 5.1 0.7 7.6 3.1 40.405 Sn/NiCu

(0.315) (0.327) (0.201) (0.028) (0.299) (0.122) (0.016)

MF-R010 7.4 12.7 5.1 0.7 7.6 3.1 10.51 Sn/NiCu

(0.291) (0.5) (0.201) (0.028) (0.299) (0.122) (0.020)

MF-R017 7.4 12.7 5.1 0.7 7.6 3.1 10.51 Sn/CuFe

(0.291) (0.5) (0.201) (0.028) (0.299) (0.122) (0.020)

MF-R020 7.4 12.7 5.1 0.7 7.6 3.1 10.51 Sn/CuFe

(0.291) (0.5) (0.201) (0.028) (0.299) (0.122) (0.020)

MF-R025 7.4 12.7 5.1 0.7 7.6 3.1 10.51 Sn/CuFe

(0.291) (0.5) (0.201) (0.028) (0.299) (0.122) (0.020)

MF-R030 7.4 13.4 5.1 0.7 7.6 3.1 10.51 Sn/CuFe

(0.291) (0.528) (0.201) (0.028) (0.299) (0.122) (0.020)

MF-R040 7.4 13.7 5.1 0.7 7.6 3.1 10.51 Sn/CuFe

(0.291) (0.539) (0.201) (0.028) (0.299) (0.122) (0.020)

MF-R050 7.9 13.7 5.1 0.7 7.6 3.1 10.51 Sn/Cu

(0.311) (0.539) (0.201) (0.028) (0.299) (0.122) (0.020)

MF-R065 9.7 15.2 5.1 0.7 7.6 3.1 10.51 Sn/Cu

(0.382) (0.598) (0.201) (0.028) (0.299) (0.122) (0.020)

MF-R075 10.4 16.0 5.1 0.7 7.6 3.1 10.51 Sn/Cu

(0.409) (0.630) (0.201) (0.028) (0.299) (0.122) (0.020)

MF-R090 11.7 16.7 5.1 0.7 7.6 3.1 10.51 Sn/Cu

(0.461) (0.657) (0.201) (0.028) (0.299) (0.122) (0.020)

MF-R090-0-9 7.4 12.2 5.1 0.7 7.6 3.0 30.51 Sn/CuFe

(0.291) (0.480) (0.201) (0.028) (0.299) (0.118) (0.020)

MF-R110 8.9 14.0 5.1 0.7 7.6 3.0 10.51 Sn/Cu

(0.350) (0.551) (0.201) (0.028) (0.299) (0.118) (0.020)

MF-R135 8.9 18.9 5.1 0.7 7.6 3.0 10.51 Sn/Cu

(0.350) (0.744) (0.201) (0.028) (0.299) (0.118) (0.020)

MF-R160 10.2 16.8 5.1 0.7 7.6 3.0 10.51 Sn/Cu

(0.402) (0.661) (0.201) (0.028) (0.299) (0.118) (0.020)

MF-R185 12.0 18.4 5.1 0.7 7.6 3.0 10.51 Sn/Cu

(0.472) (0.724) (0.201) (0.028) (0.299) (0.118) (0.020)

MF-R250 12.0 18.3 5.1 0.7 7.6 3.0 20.81 Sn/Cu

(0.472) (0.720) (0.201) (0.028) (0.299) (0.118) (0.032)

MF-R250-0-10 12.0 18.3 5.1 0.7 7.6 3.0 30.51 Sn/CuFe

(0.472) (0.720) (0.201) (0.028) (0.299) (0.118) (0.020)

MF-R300 12.0 18.3 5.1 0.7 7.6 3.0 20.81 Sn/Cu

(0.472) (0.720) (0.201) (0.028) (0.299) (0.118) (0.032)

MF-R400 14.4 24.8 5.1 0.7 7.6 3.0 20.81 Sn/Cu

(0.567) (0.976) (0.201) (0.028) (0.299) (0.118) (0.032)

MF-R500 17.4 24.9 10.2 0.7 7.6 3.0 20.81 Sn/Cu

(0.685) (0.980) (0.402) (0.028) (0.299) (0.118) (0.032)

MF-R600 19.3 31.9 10.2 0.7 7.6 3.0 20.81 Sn/Cu

(0.760) (1.256) (0.402) (0.028) (0.299) (0.118) (0.032)

MF-R700 22.1 29.8 10.2 0.7 7.6 3.0 20.81 Sn/Cu

(0.870) (1.173) (0.402) (0.028) (0.299) (0.118) (0.032)

MF-R800 24.2 32.9 10.2 0.7 7.6 3.0 20.81 Sn/Cu

(0.953) (1.295) (0.402) (0.028) (0.299) (0.118) (0.032)

MF-R900 24.2 32.9 10.2 0.7 7.6 3.0 20.81 Sn/Cu

(0.953) (1.295) (0.402) (0.028) (0.299) (0.118) (0.032)

MF-R1100 24.2 32.9 10.2 0.7 7.6 3.0 20.81 Sn/Cu

(0.953) (1.295) (0.402) (0.028) (0.299) (0.118) (0.032)

Product Dimensions (see next page for outline drawing)

Packaging options: BULK: All models = 500 pcs. per bag.

TAPE & REEL: MF-R005-MF-R160 - 12.7 mm device pitch = 3000 pcs. per reel;

MF-R185-MF-R400 - 25.4mm device pitch = 1500 pcs. per reel; MF-R250-0-10 = 1500 pcs. per reel.

AMMO-PACK: MF-R005-MF-R160 - 12.7 mm device pitch = 2000 pcs. per reel;

MF-R185-MF-R400 - 25.4 mm device pitch = 1000 pcs. per reel; MF-R090-0-9 & MF-R250-0-10 = 2000 pcs. per reel.

0.405 (26AWG)

0.51 (24AWG)

0.81 (20AWG)

MF-R Series - PTC Resettable Fuses

Additional Features

■Bulk packaging, tape and reel and Ammo-Pak available on most models

■Patents pending

(INCHES)

DIMENSIONS =

Specifications are subject to change without notice.

Customers should verify actual device performance in their specific applications.

Thermal Derating Chart - Ihold / Itrip (Amps)

Ambient Operating Temperature

Model -40 °C -20 °C0

°C 23 °C 40 °C 50 °C 60 °C 70 °C 85 °C

MF-R005 0.08 / 0.16 0.07 / 0.14 0.06 / 0.12 0.05 / 0.10 0.04 / 0.08 0.04 / 0.08 0.03 / 0.07 0.03 / 0.07 0.02 / 0.05

MF-R010 0.16 / 0.32 0.14 / 0.28 0.12 / 0.24 0.10 / 0.20 0.08 / 0.16 0.07 / 0.14 0.06 / 0.12 0.05 / 0.10 0.04 / 0.08

MF-R017 0.26 / 0.52 0.23 / 0.46 0.20 / 0.40 0.17 / 0.34 0.14 / 0.28 0.12 / 0.24 0.11 / 0.22 0.09 / 0.18 0.07 / 0.14

MF-R020 0.31 / 0.62 0.27 / 0.54 0.24 / 0.48 0.20 / 0.40 0.16 / 0.32 0.14 / 0.28 0.13 / 0.26 0.11 / 0.22 0.08 / 0.16

MF-R025 0.39 / 0.78 0.34 / 0.68 0.30 / 0.60 0.25 / 0.50 0.20 / 0.40 0.18 / 0.36 0.16 / 0.32 0.14 / 0.28 0.10 / 0.20

MF-R030 0.47 / 0.94 0.41 / 0.82 0.36 / 0.72 0.30 / 0.60 0.24 / 0.48 0.22 / 0.44 0.19 / 0.38 0.16 / 0.32 0.12 / 0.24

MF-R040 0.62 / 1.24 0.54 / 1.08 0.48 / 0.96 0.40 / 0.80 0.32 / 0.64 0.29 / 0.58 0.25 / 0.50 0.22 / 0.44 0.16 / 0.32

MF-R050 0.78 / 1.56 0.68 / 1.36 0.60 / 1.20 0.50 / 1.00 0.41 / 0.82 0.36 / 0.72 0.32 / 0.64 0.27 / 0.54 0.20 / 0.40

MF-R065 1.01 / 2.02 0.88 / 1.76 0.77 / 1.54 0.65 / 1.30 0.53 / 1.06 0.47 / 0.94 0.41 / 0.82 0.35 / 0.70 0.26 / 0.52

MF-R075 1.16 / 2.32 1.02 / 2.04 0.89 / 1.78 0.75 / 1.50 0.61 / 1.22 0.54 / 1.08 0.47 / 0.94 0.41 / 0.82 0.30 / 0.60

MF-R090 1.40 / 2.80 1.22 / 2.44 1.07 / 2.14 0.90 / 1.80 0.73 / 1.46 0.65 / 1.30 0.57 / 1.14 0.49 / 0.98 0.36 / 0.72

MF-R090-0-9 1.40 / 2.80 1.22 / 2.44 1.07 / 2.14 0.90 / 1.80 0.73 / 1.46 0.65 / 1.30 0.57 / 1.14 0.49 / 0.98 0.36 / 0.72

MF-R110 1.60 / 3.20 1.43 / 2.86 1.27 / 2.54 1.10 / 2.20 0.91 / 1.82 0.85 / 1.70 0.75 / 1.50 0.67 / 1.34 0.57 / 1.14

MF-R135 1.96 / 3.92 1.76 / 3.52 1.55 / 3.10 1.35 / 2.70 1.12 / 2.24 1.04 / 2.08 0.92 / 1.84 0.82 / 1.64 0.70 / 1.40

MF-R160 2.32 / 4.64 2.08 / 4.16 1.84 / 3.68 1.60 / 3.20 1.33 / 2.66 1.23 / 2.46 1.09 / 2.18 0.98 / 1.96 0.83 / 1.66

MF-R185 2.68 / 5.36 2.41 / 4.82 2.13 / 4.26 1.85 / 3.70 1.54 / 3.08 1.42 / 2.84 1.26 / 2.52 1.13 / 2.26 0.96 / 1.92

MF-R250 3.63 / 7.26 3.25 / 6.50 2.88 / 5.76 2.50 / 5.00 2.08 / 4.16 1.93 / 3.86 1.70 / 3.40 1.53 / 3.06 1.30 / 2.60

MF-R250-0-10 3.63 / 7.26 3.25 / 6.50 2.88 / 5.76 2.50 / 5.00 2.08 / 4.16 1.93 / 3.86 1.70 / 3.40 1.53 / 3.06 1.30 / 2.60

MF-R300 4.35 / 8.70 3.90 / 7.80 3.45 / 6.90 3.00 / 6.00 2.49 / 4.98 2.31 / 4.62 2.04 / 4.08 1.83 / 3.66 1.56 / 3.12

MF-R400 5.80 / 11.6 5.20 / 10.4 4.60 / 9.20 4.00 / 8.00 3.32 / 6.64 3.08 / 6.16 2.72 / 5.44 2.44 / 4.88 2.08 / 4.16

MF-R500 7.25 / 14.5 6.50 / 13.0 5.75 / 11.5 5.00 / 10.0 4.15 / 8.30 3.85 / 7.70 3.40 / 6.80 3.05 / 6.10 2.60 / 5.20

MF-R600 8.70 / 17.4 7.80 / 15.6 6.90 / 13.8 6.00 / 12.0 4.98 / 9.96 4.62 / 9.24 4.08 / 8.16 3.66 / 7.32 3.12 / 6.24

MF-R700 10.1 / 20.3 9.10 / 18.2 8.05 / 16.1 7.00 / 14.0 5.81 / 11.6 5.39 / 10.7 4.76 / 9.52 4.27 / 9.44 3.64 / 7.28

MF-R800 11.6 / 23.2 10.4 / 20.8 9.20 / 18.4 8.00 / 16.0 6.64 / 13.2 6.16 / 12.3 5.44 / 10.8 4.88 / 9.76 4.16 / 8.32

MF-R900 13.0 / 26.1 11.7 / 23.4 10.3 / 20.7 9.00 / 18.0 7.47 / 14.9 6.93 / 12.7 6.12 / 12.2 5.49 / 10.9 4.68 / 9.36

MF-R1100 16.1 / 32.0 14.6 / 29.2 13.1 / 26.2 11.0 / 22.1 9.40 / 18.4 8.80 / 17.6 7.80 / 15.6 6.90 / 13.8 5.20 / 10.4

NOTE: Kinked lead option is

available for board standoff.

Contact factory for details.

NOTE: Also available with

straight leads. Contact

factory for details.

Style 1

Style 2

Style 3 Style 4

Product Dimensions (see previous page for dimensions)

MF-R Series - PTC Resettable Fuses

Specifications are subject to change without notice.

Customers should verify actual device performance in their specific applications.

How to Order

MF - R 110 - 0 - 99

Multifuse®

Product Designator

Series

R = Radial Leaded Component

Hold Current, Ihold

005-1100 (0.05 Amps - 11.0 Amps)

Packaging Options

- __ = Bulk Packaging without part number

suffix option

- 0-99 = Bulk Packaging with part number

suffix option

- 2 = Tape and Reel without part number

suffix option*

- 2-99 = Tape and Reel with part number

suffix option

- AP = Ammo-Pak*

- 0-14 = Kinked leads where straight leads are

standard

- 0-17 = Straight leads where kinked leads are

standard

Part Number Suffix Option

- 99 = As of date code April 1, 2005 all MF-R

models are RoHS compliant. The suffix “-99”

can be used if a new part number is required

to reference the RoHS compliance.

Examples:

MF-R110 ................Bulk packaging

MF-R110-0-99 ......Bulk packaging with part

number suffix option

MF-R110-2 ............Tape and reel packaging

MF-R110-2-99 ......Tape and reel packaging

with part number suffix

option

MF-R090-0-9-99 ....Bulk packaging with part

number suffix option

MF-R250-0-10-99 ..Bulk packaging with part

number suffix option

*Packaged per EIA486-B

Typical Time to Trip at 23 °C

100

0.1

0.01

0.001

0.1 1 10 100

Fault Current (Amps)

Time to trip (Seconds)

MF-R017

MF-R040

MF-R075

MF-R020

MF-R050

MF-R065

MF-R090

MF-R025

MF-R030

MF-R010

MF-R005

MF-R Series - PTC Resettable Fuses

MF-R SERIES, REV. W, 04/08

100

0.1

0.01

0.001

110 100

Fault Current (Amps)

Time to trip (Seconds)

MF-R110

MF-R250,

250-0-10

MF-R500

MF-R135

MF-R300

MF-R400

MF-R600

MF-R700

MF-R800

MF-R900

MF-R1100

MF-R160

MF-R185

MF-R090

-0-9

Typical Part Marking: MF-R005 - R025

Represents total content. Layout may vary.

025

PART

IDENTIFICATION

MANUFACTURER'S

TRADEMARK

DATE CODE:

WEEK 1 OF 2000 = 0A

(YEAR & WEEK)

WEEK 27 OF 2000 = A0

(WEEK & YEAR)

Typical Part Marking: MF-R030 - R1100

Represents total content. Layout may vary.

R250

0180T

MANUFACTURER'S

TRADEMARK

PART

IDENTIFICATION

DATE CODE

(FIRST DIGIT =

LAST DIGIT OF YEAR;

NEXT THREE DIGITS =

DAY OF YEAR)

LOT NO.

(T = TAIWAN

S = CHINA)

Specifications are subject to change without notice.

Customers should verify actual device performance in their specific applications.

Devices taped using EIA468–B/IEC286-2 standards. See table below and Figures 1 and 2 for details.

IEC EIA Dimensions

Dimension Description Mark Mark Dimensions Tolerance

Carrier tape width WW

Hold down tape width: W0W4min.

Hold down tape No protrusion

Top distance between tape edges W2W6max.

Sprocket hole position W1W5

Sprocket hole diameter D0D0

Abscissa to plane (straight lead) HH

Abscissa to plane (kinked lead) H0H0

Abscissa to top (straight lead) H1H1max.

Abscissa to top (kinked lead) H1H1max.

Overall width w/lead protrusion (straight lead) C1max.

Overall width w/lead protrusion (kinked lead) C1max.

Overall width w/o lead protrusion (straight lead) C2max.

Overall width w/o lead protrusion (kinked lead) C2max.

Lead protrusion I1L1max.

Protrusion of cutout LL max.

Protrusion beyond hold tape I2I2Not specified

Sprocket hole pitch P0P0

Pitch tolerance 20 consecutive

Device pitch: MF-R005–MF-R160, MF-R/90,

MF-RX110/72–MF-RX185/72

Device pitch: MF-R185–MF-R400, MF-RX110–MF-RX375

MF-R/600, MF-RX250/72–MF-RX375/72

Tape thickness tt max.

Tape thickness with splice: MF-R010–MF-R160, t1max.

MF-RX110/72–MF-RX185/72,

Tape thickness with splice: MF-R250–MF-R1100

MF-RX110–MF-RX375, MF-R/90, MF-RX250/72–MF-RX375/72 t1max.

Splice sprocket hole alignment 0

Body lateral deviation ∆h∆h0

Body tape plane deviation ∆p∆p0

Lead spacing FF

Reel width wW

2max.

Reel diameter da max.

Space between flanges less device W1h

MF-R, MF-R/90, MF-R/600, MF-RX, MF-RX/72 & MF-RX/250 Series

Tape and Reel Specifications

(.709)

-0.5/+1.0

(-0.02/+.039)

(.354)

-0.5/+0.75

(-0.02/+0.03)

(.157)

±0.2

(±.0078)

18.5

(.728)

±3.0

(±.118)

(.63)

32.2

(1.268)

38.0

(1.496)

43.2

(1.7)

55.0

(2.165)

42.5

(1.673)

54.0

(2.126)

1.0

(.039)

(.433)

±0.5

(±.02)

12.7

(0.5)

12.7

(0.5)

25.4

(1.0)

0.9

(.035)

1.5

(.059)

2.3

(.091)

5.08

(0.2)

(2.205)

370

(14.57)

±0.3

(±.012)

±1

(±.039)

±0.3

(±.012)

±0.6

(±.024)

±0.3

(±.012)

±1.0

(±.039)

±1.3

(±.051)

±0.2

(±.008)

4.75

(.187)

±3.25

(±.128)

(.433)

(.118)

DIMENSIONS = MM

(INCHES)

MF-R, MF-R/90, MF-R/600, MF-RX, MF-RX/72 & MF-RX/250 Series

Tape and Reel Specifications

Specifications are subject to change without notice.

Customers should verify actual device performance in their specific applications.

User direction of feed

Cross section A - B

∆p∆p

Reference plane

H0W1

∆h

Reel

Upper side

Tape

Lower side

User

direction

feed

Reel Dimensions - Figure 2

Taped Component Dimensions - Figure 1

DIMENSIONS = MM

(INCHES)

IEC EIA Dimensions

Dimension Description Mark Mark Dimensions Tolerance

Arbor hole diameter fc

Core diameter: MF-R, MF-RX, MF-R/90 hn max.

Core diameter: MF-RX/250, MF-R/600 hn max.

Box: MF-R, MF-RX, MF-R/90 max.

Box: MF-RX/250 max.

Box: MF-R/600 max.

Consecutive missing places: MF-R, MF-RX, MF-R/90 3 max.

Consecutive missing places: MF-RX/250, MF-R/600 none

Empty places per reel: MF-R, MF-RX, MF-R/90 Not specified

Empty places per reel: MF-RX/250, MF-R/600 0.1 %

(1.024)

(3.15)

(2.2)

372

(14.6)

372

(14.6)

±12.0

(±.472)

(3.58)

(2.64)

372

(14.6)

362

(14.25)

(2.52)

372

(14.6)

362

(14.25)