ASMD2018 Series Surface Mount PTC Devices

PRODUCT DATASHEETSurface Mount PTC Devices

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ASMD2018 Series Surface Mount PTC Devices

Description

The ASMD2018 series provides surface mount resettable overcurrent protection with holding current from 0.3A to 2.0A. This series is suitable for applications with higher holding currant and higher working voltage up to 60V.

Features

● ● ●●●●

RoHS compliant and lead-free Low profileHalogen-freeFast response to fault currentHigh voltageCompatible with high temperature solders

Power over Ethernet (POE)IEEE 1394 port protectionPowered USB for POS and IPCLow voltage telecom equipmentAutomotive electronics control module protectionIndustrial controlSecurity systems

Applications

● ● ● ●●●●

Agency Approvals

Regulation Standard

2002/95/EC

EN14582

Revised 02/07/18JDT Fuse Industrial Co., Ltd

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Environmental Specifications

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I hold = Hold Current. Maximum current device will not trip in 25°C still air.I trip = Trip Current. Minimum current at which the device will always trip in 25°C still air.V max = Maximum operating voltage device can withstand without damage at rated current (Imax).I max = Maximum fault current device can withstand without damage at rated voltage (V max).Pd = Power dissipation when device is in the tripped state in 25°C still air environment at rated voltage.Ri min/max = Minimum/Maximum device resistance prior to tripping at 25°C.R1max = Maximum device resistance is measured one hour post reflow.CAUTION : Operation beyond the specified ratings may result in damage and possible arcing and flame.

Test

Conditions Resistance change

ASMD2018 Series Surface Mount PTC Devices

Passive agingHumidity agingThermal shockResistance to solvent Vibration 　Ambient operating conditions : - 40 °C to +85 °CMaximum surface temperature of the device in the tripped state is 125 °C

+85°C, 1000 hrs.+85°C, 85% R.H. , 168 hours+85°C to -40°C, 20 timesMIL-STD-202,Method 215MIL-STD-202,Method 201

±5% typical±5% typical±33% typicalNo changeNo change

Performance Specification

Model V max(V dc)

I max(A)

I hold@25°C

(A)

I trip@25°C

(A)

P dTyp.(W)

MaximumTime To Trip Resistance

Current(A)

Time(Sec)

R i min(Ω)

R1max(Ω)

ASMD2018-030ASMD2018-050ASMD2018-075ASMD2018-100

ASMD2018-100-33VASMD2018-150ASMD2018-200

60606015331510

100100100100100100100

0.300.550.751.101.101.502.00

0.601.201.502.202.203.004.00

0.91.01.11.11.11.11.1

1.52.58.08.08.08.08.0

3.003.000.300.400.400.802.40

0.500.200.110.060.060.050.03

2.301.000.630.360.360.170.10

Revised 02/07/18JDT Fuse Industrial Co., Ltd

www.jdtfuse.com

Thermal Derating Curve

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ASMD2018 Series Surface Mount PTC Devices

Average Time-Current Curve

CURRENT IN AMPERES

TIM

E IN

SE

CO

ND

Derating Curves for SMD2018 Series

Temperature (°C )

Perc

enta

ge o

f Der

ated

Cur

rent

020406080

100120140160

-40 -20 0 20 40 60 80

0.01

0.1

1

10

100

0 100111.0

0.30A

0.50A

0.75A

1.10A

1.50A

2.00A

Revised 02/07/18JDT Fuse Industrial Co., Ltd

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ASMD2018 Series Surface Mount PTC Devices

Soldering Parameters

Profile Feature Pb-Free Assembly

Average Ramp-Up Rate(Ts max to T p)Preheat -Temperature Min(Ts min) -Temperature Max(Ts max) -Time(Ts min to Ts max)Time maintained above: -Temperature(TL) -Time(tL)Peak Temperature(Tp)Ramp-Down RateTime 25℃ to Peak TemperatureStorage Condition

3℃/second mac.

150℃200℃60~180 seconds

217℃60~150 seconds260℃6℃/second max.8 minutes max0℃~35℃,≤70%RH

Recommended reflow methods: IR, vapor phase oven, hot air oven, N2 environment for lead-freeRecommended maximum paste thickness is 0.25mmDevices can be cleaned using standard industry methods and solvents.Note 1:All temperature refer to topside of the package, measured on the package body surface.Note 2: If reflow temperatures exceed the recommended profile, devices may not meet the performance requirements.

t L 60~150 s

tsPreheat 60~180 s

t 25°C to peak

Time

TL 217

TP 260

25

TP 20~40 S

Ramp-up Critical Zone TL to TP

Ramp-down

Tsmax

Tsmin

150

200

Tem

pera

ture

(°C

)Thermal Derading Chart

Model- 40°C - 20°C 0°C 25°C 40°C 50°C

Maximum ambient operating temperature (Tmao) vs. hold current (Ihold)

60°C 70°C 85°C

0.480.871.191.712.382.95

ASMD2018-030ASMD2018-050ASMD2018-075ASMD2018-100ASMD2018-150ASMD2018-200

0.420.771.051.522.102.65

0.350.670.911.321.822.35

0.300.550.751.101.502.00

0.240.460.610.941.271.74

0.150.310.410.640.851.29

0.210.410.540.841.131.59

0.170.360.470.740.991.44

0.100.230.320.500.641.06

Revised 02/07/18JDT Fuse Industrial Co., Ltd

www.jdtfuse.com

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ASMD2018 Series Surface Mount PTC Devices

Physical Dimensions(mm.)

Termination Pad CharacteristicsTerminal pad materials：Tin-plated Nickel-CopperTerminal pad solder ability：Meets EIA specification RS186-9E and ANSI/J-STD-002 Category 3.

ModelMin. Max. Min. Max. Min.

A B C D E

Max. Min. Min.

ASMD2018-030ASMD2018-050ASMD2018-075ASMD2018-100

ASMD2018-100-33VASMD2018-150ASMD2018-200

4.724.724.724.724.724.724.72

5.445.445.445.445.445.445.44

4.224.224.224.224.224.224.22

4.934.934.934.934.934.934.93

0.300.300.300.300.300.300.30

0.500.500.500.500.500.500.50

1.201.201.201.201.201.201.20

0.250.250.250.250.250.250.25

Packaging Quantity and Marking

Part Number Quantity

ASMD2018-030.050The othersTape & reel packaging per EIA481-1

1500 pcs/reel2500 pcs/reel

4.6±0.1

3.4±0.1

1.5±0.11.5±0.1

Revised 02/07/18JDT Fuse Industrial Co., Ltd

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ASMD2018 Series Surface Mount PTC Devices

Governing Specifications EIA 481-1

WP0P1P2A0B0B1max.D0FE1E2min.TT1max.K0Leader min.Trailer min.Reel DimensionsA max.N min.W1W2

12.0 ± 0.24.0 ± 0.108.0 ± 0.102.0 ± 0.054.40 ± 0.105.50 ± 0.108.201.50 + 0.1, -05.5 ± 0.051.75 ± 0.1010.250.60.11.36 ± 0.1390160　

1785012.4 ± 0.518.4 ± 0.5

Tape And Reel Specifications (mm)

Storage And Handling ● Storage conditions：40°C max, 70% R.H.● Devices may not meet specified performance if storage conditions are exceeded.Technology Corp.

D2

K0 B0A0

T

F

W

E1

P2D0P0

P1

W4

W2

W3

W1

F

H1

W

CD

H

Revised 02/07/18JDT Fuse Industrial Co., Ltd

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ASMD2018 Series Surface Mount PTC Devices

Special Voltage Rating(Optional)

Holding Current Rating

Device Dimensions: Length/width(Unit:1/100 inch) Size 5045 mm / 2018 inch

Surface Mount Device

Part Number System

Cross Reference

ASMD 2018 - -

“PolySwitch” is a registered trademark of Tyco Electronics.“POLY-FUSE” is a registered trademark of Littelfuse,Inc.“EVERFUSE” is a registered trademark of Polytronics Technology Corp.

ModelTyco / PolySwitch® Littelfuse / POLY-FUSE® Polytronics / EVERFUSE®

Cross Reference

ASMD2018-030ASMD2018-050ASMD2018-100

ASMD2018-100-33VASMD2018-150ASMD2018-200

SMD030F-2018SMDC050F/60SMD100F-2018

-SMD150F-2018SMD200F-2018

2016L0302016L0502016L100

2016L100/332016L1502016L200

SMD2016P030TFSMD2016P050TFSMD2016P100TF

SMD2016P100TF/33SMD2016P150TFSMD2016P200TF

Revised 02/07/18JDT Fuse Industrial Co., Ltd

www.jdtfuse.com