0ZRN0070FF1E

## OZRN Series 

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[HF]@ OZRN Series Fuse<br>**----- End of picture text -----**<br>


## RoHS 2 Compliant & Halogen-Free 

## Application 

Wide variety of electronic equipment 

## Product Features 

## a[cus] 

Very Low resistance, Very High hold current, Solid state, Radial leaded product ideal for up to 16V and Operating temperatures up to 125°C . Operating (Hold Current) Range Maximum500mA - 15AVoltage Temperature Range 30VDC/16VDC -40°C to 125°C 

## Agency Approval 

TUV (Std. EN60738-1-1, Cert. R50102187) UL Component (Std. UL1434, File E305051) 

UL Conditions of Acceptability: 

i 1. These devices have been investigated for use in safety circuits and are suitable as a limiting device. I 2. These devices have been calibrated to limit the current to 8 amps within 5 seconds, per ANSI/NFPA 70, “National Electrical Code”. LEAD FREE « G) Electrical Characteristics (23) HALOGEN FREE = [HF| Part Number Max Time to Trip Typical Resistance Tolerance Bulk Current |Current @ 5xIH Current | Voltage Power —Bmin—Rimax ay, _A| (Buk) _IH,A | ITA | Seconds | Imax,A_| Vmax,Vdc| Pd,W | Ohms | Ohms _| Tov |B| OZRNOOSOFFIE | 05 | o9 | 25 | 40 | 30 | o9 | o4g00 | 1.100 | vy o| iy _c| ozANoo7orFiE | o7 | 14 | 32 | 4o | 30 | 14 | o3000 | 0800 | vy | y | |p| OZRNOIOOFFIE | 10 | 18 | 52 | ao | 30 | 14 | o1g00 | 04900 | vy | y | _E| ozANozoorFie | 20 | 38 | 30 | wo | 16 | 14 | ooo | o1100 | vy | y | |e | **OZRNO** 4003OO **FFI** EE **|** 34 **0** |[| 67 **0 | 50 |** +00too **|** 1%6 **| 3** 30 **| o** o330_oo **| o** o790of **|** vyY || yyy **|** _G| OZRNO450FFIE | 45 | 78 | 30 | 100 | 16 | 36 | 00220 | 00540 | vy | yy |H| OZRNOSSOFFIE | 5.5 | 100 | 60 | 10 | 16 | 35 | ooo | 00370 | y | y | _1| OZRNO6OOFFIA | 60 | 108 | 50 | too | 16 | 41 | oo130 | 00920 | y | yy | _J | OZRNOGSOFFIA | 65 | 120 | 55 | 100 | 16 | 43 | oo10 | ooo | vy | yy _K| OZRNO7OOFFIA | 7.0 | 130 | 70 | too | 1% | 40 | oot00 | oo2c | vy | yy | |u| OZRNO7SOFFIA | 75 | 131 | 70 | 100 | 16 | 45 | 00004 | 00220 | vy | vy | _M| OZRNOBOOFFIA | 8.0 | 150 | 80 | 100 | 16 | 42 | ooos | 0020 | vY | y LN| OZRNOQOOFFIA | 90 | 165 | 100 | too | 16 | 50 | ooo7 | oo170 | y | yy | _O| OZRNIO0OFFIA | 100 | 185 | 90 | 100 | 16 | 53 | ooo2 | 00150 | Y | yi [P| OZRNI100FFIA | 110 | 200 | 110 | 10 | 16 | 55 | coos | oo10 | vy | yy | _Q| OZRNISOOFFIA | 13.0 | 240 | 130 | 100 | 16 | 69 | 0041 | oo100 | Y | iy |R| OZRNI400FFIA_ | 140 | 270 | 130 | 100 | 16 | 69 | 00030 | 0000 | Y | vy | S| OZRNISOOFFIA | 15.0 | 280 | 200 | 100 | 16 | 7.0 | 00032 | ooo2 | YY | y 

IH Hold Current-maximum current at which the device will not trip in still air at 23°C. IT Trip current-minimum current at which the device will always trip in still air at 23°C. Imax Maximum fault current device can withstand without damage at rated voltage (Vmax). Vmax Maximum voltage device can withstand without damage at its rated current. Pd Typical power dissipated by device when in tripped state in 23 °C still air environment. Rmin Minimum device resistance at 23°C. Rimax Maximum device resistance at 23°C, 1 hour after initial device trip, or after being soldered to PCB in end application. 

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Specifications subject to change without notice Bel Fuse Inc. +1 201.432.0463 206 Van Vorst Street Bel.US.CS@belf.com Jersey City, NJ07302 USA _ belfuse.com/circuit-protection 

© 2018 Bel Fuse, Inc. OZRN Feb2018 1/4 

## Radial Leaded PTC 

## OZRN Series 

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[HF]@8 OZRN Series Fuse<br>**----- End of picture text -----**<br>


## RoHS 2 Compliant & Halogen-Free 

PTC's - Basic Theory of Operation / “Tripped” Resistance Explanation Fundamentally, a Bel PTC consists of a block of polymeric material containing conductive filler and bonded between two conductive, planar terminations. 

At currents below the device IHOLD rating, AND at temperatures below 100C, the PTC maintains a resistance value below its R1 MAX rating. 

As the device's temperature approaches 130C, either due to an increase in ambient temperature or a current exceeding its | TRIP rating, volumetric expansion of the filled polymer breaks apart the majority of conductive pathways across the terminals created by chain contact of adjacent filler particles or device resistance increases sharply by several orders of magnitude. 

At the much higher “Tripped” resistance, there is just enough leakage current to allow internal heating to “hold” the device in its tripped state (around 125C) until power is interrupted. Once power is removed, the PTC's core cools and contracts allowing conductive chains to reform and return the device to its low resistance state. 

The catalog data for each device specifies a "Typical Power" value. This is the power required to exactly match the heat lost by the tripped device to its ambient surroundings at 23C. By Ohm's Law, power can be stated as: W = E“2/R. Thus the approximate resistance of a “Tripped” PTC can be determined by: R = E*2/W, where "E" is the voltage appearing across the PTC (usually the supply's open circuit voltage), and "W" is the Typical Power value for the particular PTC. Since the PPTC acts to maintain a constant internal temperature, its apparent resistance will change based upon applied voltage and, to a lesser degree, ambient conditions. Consider the following example... 

A PTC with a Typical Power of 1 watt protecting a circuit using a 60V supply will demonstrate an apparent, tripped resistance "R" of: 

R = 6042/1 = 3,600 ohms 

This same tripped device when used to protect a 12V circuit would now present an apparent resistance of: R = 1242/1 = 144 ohms 

The value for Typical Power is "typical" because any physical factors that affect heat loss (such as ambient temperature or air convection) will somewhat alter the level of power that the PTC needs to maintain its internal temperature. In short, PTCs do not exhibit a constant, quantifiable tripped resistance value. 

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Type Time - To - Trip at 237<br>**----- End of picture text -----**<br>


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(See Elec. Characteristics Table for P/N - Curve correlation)<br>D E FG HUKLMNOPQRS<br>2 p—__ Nv NRT TAN EN SSAC NSS SSS<br>oy pTEE NENNNONE TAANAS NNN ONSSS<br>po NNN NTN OS<br>or LT EE TIN NDOND TD NINA<br>1 10 100<br>Fault Current (A)<br>Specifications subject to change without notice<br>POWER<br>SOLUTIONS &PROTECTIONPROTECTION Bel Fuse Inc. +1 201.432.0463<br>206 Van Vorst Street Bel.US.CS@belf.com<br>Jersey City, NJ 07302 USA __ belfuse.com/circuit-protection<br>**----- End of picture text -----**<br>


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© 2018 Bel Fuse, Inc. OZRN Feb2018 2 / 4 

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[HF]@B OZRN Series Fuse<br>**----- End of picture text -----**<br>


## RoHS 2 Compliant & Halogen-Free 

## Physical Specifications 

Lead material: Matte tin plated copper, size / diameter as shown in Drawings and Table under Product Dimensions. Soldering charactcristics MIL-STD-202, Method 208E. Insulating coating Flame retardant epoxy, meets UL-94-V-0 requirements. 

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PTC Marking<br>“bel” or “b”, , lH code and “RN” . , oo<br>All dimensions in mm.<br>Product Dimensions BordaOZRNOOSOFF |g. | [Max] AS He| Max Typti|Typiooal NMin i et|cal)MaxReet | Tica Typicali  |<br>A | 1 | 7.4 | 12.7 | 51 | 76 | 30 | 1.2 |<br>t E-) |+- js A— rt —| |«E -A_~rT Ele pArT Ee OZRNO 100O7O FF | 12 | 96 . 79 | 1 0.836 | 5 .11 | 7 .66 | 3 .00 | 1.2 |<br>I OZRNO2OOFF | 1 | 9.4 | 144 | 51 | 7.6 | 30 | 1.2 |<br>| J) I OZINOAOOFE Pee ee Ce r | 3.0 | 12 |<br>6 43 D 4 OZRNO400FFazeNossoE [3 [ie Lies er] re sot 1a<br>We OZRNO5S50FF<br>ee rs- Ft ee ee |OZRNOGS5OFF<br>qe ibe bed er belt tbe bolt the eae ee<br>*e OZRNO7OOFF | 3 | 14.0 | 21.9 | 51 | 76 | 30 | 12 |<br>Fig.4 OZRNO750FF | 3 | 14.0 | 235 | 5.1 | 7.6 | 30 | 1.2 |<br>Lead Size :24AWG Lead SizeFig.2:24AWG Lead SizeFigs: 20AWG Lead SizeFig. : 18AWG OZRNOSOOFFOZRNOBOOFF | 3 | 16.516.5 |  22.5|25.7 [ 51 |  7.67.6 |  303.0 | 121.2 ||<br>0.51 mm Diameter 0.51 mm Diameter ® 0.81 mm Diameter ® 1.00 mm Diameter DZENTOOOFE 8 ITB 265 102 76 30 1.2 |<br>. OZRNTA00FF a8 87 [ 10.2 | zs | 36 | 1.4 |<br>Thermal 0ZRN1400FF<br>Derating Curve OZRNI500FF | 4 | 23.5 | 28.7 | 10.2 | 76 | 36 | 14 |<br>Cautionary Notes<br>200% 1. Operation beyond the specified maximum ratings or<br>os P TittyTTTtT t T ytT e eet yeett eeett ET TTeeEE ET ET electricalimproper use arcing may and/or result flame.in damage and possible<br>c Pt yyy eee ee ee ee 2. These Polymer PTC (PPTC) devices are intended for<br>£ SERRE R EERE protection against occasional overcurrent/<br>eee eee overtemperature fault conditions and may not be<br>3 SRR REE eee suitable for use in applications where repeated and/or<br>Se Bn SERRE eee prolonged fault conditions are anticipated.<br>3 5 | | | Bn~SE eee eee [| | | | ri tt tl rt tty 3. Avoid contact of PTC device with chemical solvent.<br>Or COC Prolonged contact may adversely impact the PTC<br>~ Bion LLL TT TTT IAAT TT TTT TT TT TT TTT Performance. ; ;<br>SEZo PT TTT yy ry SATTTTTT TTT Ys} 4 These PTC devices may not be suitable for use in<br>ES<br>° ES EEL] | teetaser ia<br>r= ™ <—_ voltage.<br>Bs ee ee 5. These devices are intended for use in DC voltage<br>a= E EE EEEE EEE EE E eee EDS SCLETT]SSL | apelctonsshould be first ony. discussed Use in AC with vattageeppicationsBel Fuse engineering.<br>PT >= 6. Not recommended for use on potted or conformal<br>pt yyett TTyyy ee e ee eeeeeet coaelec t edrical PCB's.performance Restriction and/orof freeresult air flowin device could failure. affect<br>oy LLLLL ITT t tteeee Consult Bel Fuse engineering.<br>-40 -20 0 20 40 60 80 100 120 7. In the “Indeterminate Performance / grey zone”,<br>tripping may occur but cannot be relied upon. For<br>Device's ambient temperature (C) special circumstances considering use within this<br>region, consult Bel Fuse Engineering.<br>Specifications subject to change without notice<br>8 985%<br>eet POWER<br>E@ aft, bel See yee Bel Fuse Inc. +1 201.432.0463<br>ESer : saeee 206 Van Vorst Street Bel.US.CS@belf.com. « .<br>“SEaTe" abel group Jersey City, NJ 07302 USA __ belfuse.com/circuit-protection<br>© 2018 Bel Fuse, Inc. OZRN Feb2018 3/4<br>**----- End of picture text -----**<br>


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OZRN Series<br>**----- End of picture text -----**<br>


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[HF]@B OZRN Series Fuse<br>**----- End of picture text -----**<br>


## RoHS 2 Compliant & Halogen-Free 

## Soldering Parameters 

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Lead-free Wave Soldering Profile<br>WawSokierPaane<br>i : typical 1 - 2°C / second<br>within 125°C of soldering temperature<br>Time witn 0°C/-Cof ecualpek tonportve<br>'tt<br>QaoO yee ee a——tenetee2 2ND WAVE<br>i<br>Ww 1 ST WAVE \<br>4 rer. 5°C/SEC<br>> . e<br>' '<br>< 200°C/SEC r 4 ,<br>Ss 100 + ------+ : ‘ : ' 2°C/SEC<br>WwW 4 ' '<br>= wosec | ' ! :<br>25 thot<br>15 100<br>sec<br>TIME (SEC)<br>**----- End of picture text -----**<br>


## Standard Packaging 

P/N Explanation and Ordering Information 

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| Buk | [ReeVTape] OZRN KOK =X XXX<br>— P/N Code |Pcs/Reel |P/N Code a<br>ny wo |e | mm | ms<br>neers [3000 | ie | 1500 | 2B | | HOLDRefer to Part Rating Number and IH Rating in Electrical Characteristics Table on P.1.<br>OZRNOSSOFF | 3000 | 1E | 1500 | 2B | Electrical Characteristics<br>EROZRNO650FFaEES | tooo | 1A | 1500 {| 2B | A to Z (except F) = Special, customer spec, DCR sort, etc.<br>- N/A N/A Mechanical Features<br>OZRN1S00FF AF =to StandardZ (exceptDesignF) = Special, customer spec, lead forming, etc.<br>Tape & Reel Qty —————————————— "or<br>See standard packaging<br>dee Specifications subject to change without notice<br>**----- End of picture text -----**<br>


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dee<br>AGERE » POWER<br>See<br>*S8EE8" a bel group<br>**----- End of picture text -----**<br>


206 Van Vorst Street Bel.US.CS@belf.com Jersey City, NJ07302 USA _ belfuse.com/circuit-protection 

© 2018 Bel Fuse, Inc. OZRN Feb2018 4/4