0ZCG BEL
Document overview
- Manufacturer or author: Provided By digicamel.com
- PDF pages: 4
Technical content
defining a degree of excellence
1812 Chip
& Surface Mount PTC werssconinsncsutec =a 0ZCG Series @B 0ZCGSeries Fuse & Wis ea 6-60V (per table) . 40°C to 85°C x BS oS TUV (Std. EN60738-1-1 , Cert. R50102117& R50102187) UL Component (Std. UL1434, File E305051) UL Conditions of Acceptability: 1, These devices have been investigated for use in safety circuits and are suitable as a limiting device. 2. These devices have been calibrated to limit the ‘PP current to 8 amps within 5 seconds , per ANSI/NFPA All high-density boards 70, “National Electrical Code”
1812 Chip Size , Fast Trip Time, Low DCR Resistance HALOGEN FREE = [HF]
Trip Rated | Typical Current [current [Time | yokage_|| Power foo _fimss | Wn | | [wa | ma [a {see | max A | Vmax vde [paw [ohms [ohms | [A| ozccootorr2c | oto | 030 | eo | 002 | too {60 {| oe | 1600 | ts00 |v | B| ozccootarr2c | ota | 030 | 80 | 0008 | to | 60 | oe | 1200 | esoo |v || | ezccooaorrac | 020 | oa [20 [oo | 10 [a | oe {oso [sooo [vy fv | | ezecoozoar2c | 020 | 040 | eo {oo | 4 | 60 | os {oso | so00 | yt [| ozccoosorr2c | 030 | oso | eo | o1oo | 40 | 30 {| o8 | 0200 | sso |v | | ozecoossarac | 03s | 070 | e0 | oso | 4 | 30 | oe | oso | soo | yf | +, czcemeorrae foe tm tee fom me fe fe ome me fed | ezecoosoar2c | oso | 100 | 20 | oaso | too | a0 | os | otso | so00 | ny | |_ozcaoorsrrac | 07s | 180 | 80 {0200 | too |e [os | ono | o.aso [Tv | ozccoorsarza |" o7s [180 [eo [200 [Tao fe To Posto [ozs fv | ozecoorserze | 07s | 180 | eo { o20 | a [as [40 [ono [aon fy | | ezecororrac | 410 | 220 | eo | os | too |e | os | oo | ozo | vy { v | | ezccoroarac | 110 | 220 | 20 | 0600 | too | 6 | os | oo | oreo | vy {ov | | ozecortopra | 110 | 220 | 80 | 0800 | too | 2a | 40 | o.060 | o.a00 | || | ozccorzsrrac | 126 | 280 [eo [oa [oo fe Toe foo [ono fy | | ezccorzsarze | 126 | 260 | eo { o4o | too | 6 | os | 0080 | oro [vy | ezccorsorrac | 1.80 | 300 | 20 | osoo | too | es | os | oo | ono | vy {iv | 4 [ozceorsoarzc [180 [soo [eo [ osoo [ao [aso foo oto | ozecoisor2c | so | 300 [20 [1.00 [too faa 0 foo [orzo fy | ezccorsorrac | 160 | 320 | eo { osoo | too |e [| os | os0 | oro [oy {ov | | ezecorsoar2c | 60 | 320 | eo {1000 | too | 2 | 40 | oga0 | otoo fy Ty | ozccoreosrac | 160 | 320 | eo | 1000 | too | ie | 40 { 0030 | otoo [|| [uJ] ozecoao0rr2c [200 [aso [eo | 2000 [7 to [ef 40 [oon [oor Tv | ozecoasorrac | 260 | soo | eo {280 | too | 6 | 40 [| oos [oar fT |_ozccoasoarze | 260 | soo | 20 | sooo | too | sz | 13 | oois | ooso [YT | ozccoasopr2e | 260 | 500 | 20 | s000 | too |e | 13 [os | oso [YT Ln] ozccosoorr2s | 3.00 | soo | 80 | 4000 [too fs To | oor oto | IH Hold Current-maximum current at which the device will not trip in still air at 23°C. ir 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. R1max Maximum device resistance at 23°C, 1 hour after initial device trip, or after being soldered to PCB in end application. ‘Spectcatons subject to change without notice Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 ~ Tel: 201-432-0463 - Fax: 201-432-0542 - E-Mail: belfuse@belf.com Website: www.belfuse.com
Surface Mount PTC RoHS8 Compliant & Halogen-Fee OZCG Series HEI@® 02¢6 oct2013¢ 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 and 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... APTC with a Typical Power of 1 watt protecting a circuit using a 60V supply will demonstrate an apparent, tripped resistance "R" of: R = 60°2/1 = 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. (See Elec. Characteristics Table for P/N - Curve Correlation) ABC DE FG HUK LMN
0 SSS SSS SS Se
a Pot VANREAANA AN AAA EEE : 1 COCCAISANS F PS SRSA AAR NN EE es AES ORR SS SR e fF JE ANA AWAEAAAT ANS EE A 01 REL LLUTTINA AAW ANA TT iS a a ee EEE E [RSIS EES PE NIAAA ARREST 0.01 jt dt NER ARNT == see a A A A 8 ooor _L TTI TT Titi TT TTT}
0.1 Fault Current (A) 10 100
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 + Tel: 201-432-0463 + Fax: 201-492-9542 - E-Mail: belfuse@belf.com Website: www.belfuse.com
bel Surface Mount PTC secsaninvansinsie ame 0ZCG Series A® Thermal Derating Curve Cautionary Notes . . 4. Operation beyond the specified maximum ratings Hold & Trip Current and Thermal Derating Curve or improper use may result in damage and possible electrical arcing and/or flame. 300% 2. These Polymer PTC (PPTC) devices are intended 3 for protection against occasional overcurrent/ = overtemperature fault conditions and may not be s 250% a suitable for use in applications where repeated andi 5 LT] Device b d prot or prolonged fault conditions are anticipated. of cS 3. Avoid contact of PTC device with chemical solvent. so 2 200% lI Dandies HT a HI | Prolonged contact may adversely impact the PTC S performance. ZS iso, |Indete e pe dr ance | 4, These PTC devices may not be suitable for use in Sa | iT] [| circuits with a large inductance, as the PTC trip can or nh generate circuit voltage spikes above the PTC rated F 100% voltage. a £z TH rH Tl 5, These devices are intended for use in DC voltage 2§ ———, applications only. Use in AC voltage applications 3 50% Devic tema esiste sta should be first discussed with Bel Fuse engineering § | 6. Not recommended for use on potted or conformal a m% coated PCB's. Restriction of free air flow could affect 40 20 ° 20 40 60 80 electrical performance and/or result in device failure Consult Bel Fuse engineering. Ambient Temperature (‘C) 7.In the “Indeterminate Performance / grey zone”, tripping may occur but cannot be relied upon. For = Hold Current ===" Trip Current special circumstances considering use within this region, consult Bel Fuse Engineering. 8. MSL : 2a (According to IPC J-Std-020). Mechanical Dimensions and Marking Eyozs-ccesinn All dimensions in mm. . ).65mm_ oa_k Dimensions Marking Code T patnumber | || Bc. | 8 (3.07-3.41mm) | wn [mex [wo] wer | Cd | eae | Ce | szcooowrac [00 [090 [a3 [095 [oo J Ll azcoooaorrac | a0 [090 | —a30 [095 [ono J — 4 a 37-4, ; azcooosserac {oo [ozo {aso [ 095 [ons Top and Bottom View a tL wzceaoswrrac [ass [ass [os0 [oss [ose ee |_scomomwrne | os | ome | om | om [| | Side View © eee Se eS Se ware [ow [ws [ew [ew [| Pad Layout [oes | ass es fom = a The dimensions in the table below provide the Ld recommended pad layout. wzccoroarzc | 02s [090 [oa | os [Te owe [ow |» [es [ew [| | ezcoaresrrac [025 [oss [oa [oss [ors fens [oe [ww [oe [ws || ¥ ee wcowwre [oo [ww [ex [ew [| | | votes | tucina | nota | eons [om [us [es [ews [Ta SAMs ezceaworrac | a25 [aso [os fos oe ee ecconeonze [ooo [ss | oas [oss [Te swecaroorxe [oss [ue [os [os [| | —zcaaaoerac [os [ 30 [os [os [oaso in | eine [om [uss [os [ows [| Matte Tin-plated Copper |< ezccosoareoe [aso | 155 | 05 | 005 | —osmm__[ Speciientions subject change waout natie Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 « Tel: 201-432-0463 + Fax: 201-492-9542 + E-Mail: belfuse@belf.com Website: www.belfuse.com
Surface Mount PTC RoHS8 Compliant & Halogen-Free OZCG Series @ 02C6 0ct2013D Solder Reflow and Rework Recommendations ‘Average Ramp-Up Rate (Tsmax to Tp De eee Gridcal Zone] Preheat : <|h to Te ‘Temperature Min (Tsmin) 150 °C ft ee ‘Temperature Max (Tsmax) 200 *C 1 |: ee ‘Time (tsmin to tsmax) 160-180 seconds : [= ‘Time maintained above: = —— ‘Temperature(T,) 217 s Time (u) {60-150 seconds ee y~-- [Ramp-down] Peak/Classification Temperature(Tp):|260 ‘CS || ‘Time within 5°C of actual Peak : Goes | ‘Temperature (tp 20-40 seconds = d {25°C 10 Peak Figg Time 25°C_to Peak Temperature: [8 minutes max | Solder Reflow Due to " lead free / ROHS6 " construction of these PTC devices , the required Temperature and Dwell Time in the " Soldering "zone of the reflow profile are greater than those used for non-RoHS devices. 1.Recommended reflow methods ; IR , vapor phase oven , hot air oven. 2. Not Recommended For Wave Solder / Direct Immersion. 3. Recommended maximum ; paste thickness is 0.25mm. 4. Devices are compatible with standard industry cleaning solvents and methods. Caution If reflow temperature / dwell times exceed the recommended profile, the electrical performance of the PTC may be affected. Rework : MIL-STD-202G Method 210F. Test Condition A. Standard Packaging Part Number | Tape/Reel Q' 2000 or 1500 fuses in 7 0ZCG OXXX X_X_XX 0ZCGO010FF2C inches dia. Reel, 8mm ; Thro wide tape, 4mm pitch, PTC series 0ZCGO075FF2C per EIA-481 (equivalent | 02°: 1812 Size 0ZCG0075AF2B IEC-286 part 3). VHOLD Rating $$ $a a 0ZCG0075BF2B Refer to Part Number and IH Rating in Electrical Characteristics Table on P.1. 0ZCGO110F F2C Eletrical Characteristics 0ZCG0110AF2C F= Standard Design [ozceot10BF28 | 1500] ‘AtoZ (except F) = Special, customer spec, DCR sort, etc. OZCGO125FF2C Mechanical Features Th F= Standard Design wh AtoZ (except F) = Special, customer spec, lead forming, etc. OZCGO2GOFF2C ie bel 6 ape & Reel === [etme | te | Son tandadpatagig ru ‘Specifications subject to change without notice CORPORATE OFFICE FAR EAST OFFICE EUROPE OFFICE EUROPE Bel Fuse Inc. Bel Fuse Ltd. Bel Fuse Europe Ltd. Bel Stewart GmbH 206 Van Vorst Street 8/F Luk Hop Industrial Building Preston Technology Management Centre Industriestrasse 20 Jersey City, NJ 07302 8 Luk Hop Street Marsh Lane, Suite F15 61381 Friedrichsdorf Tel 201-432-0463 San Po Kong Preston, Lancashire, PR1 8UQ Germany Fax 201-432-9542 Kowloon, Hong Kong United Kingdom Tel 49-6172-9552-0 E-Mail: belfuse@belf.com Tel 852-2328-5515 Tel 44-1772-556601 Fax 49-6172-9552-40 Website: www. belfuse.com Fax 852-2352-3706 Fax 44-1772-561008