RXE185

RXE(7) 1/15/99 11:44 AM Page 165 RXE Selection Guide and Product Data This section has two parts: • A Selection Guide that walks you through the process of selecting the correct RXE device for a circuit. • Product Data that outlines electrical characteristics, physical characteristics, agency recognitions, environmental specifications, component layouts, tape and reel specifications, and ordering information for RXE devices. RXE Selection Guide Follow these seven steps to select a PolySwitch RXE device for a circuit: 1. Define the operating parameters for the circuit. These include: • Maximum ambient operating temperature • Normal operating current • Maximum operating voltage (RXE is 60 V maximum) • Maximum interrupt current 2. Select the RXE device that accommodates the circuit’s maximum ambient operating temperature and normal operating current. 3. Compare the RXE device’s maximum operating voltage and maximum interrupt current with the circuit’s to be sure the circuit does not exceed the device ratings. 4. Check the RXE device’s time-to-trip to be sure it will protect the circuit. 5. Verify that the circuit’s ambient operating temperatures are within the RXE device’s operating temperature range. 6. Verify that the RXE device’s dimensions fit the application’s space considerations. 7. Independently evaluate and test the suitability and performance of the RXE device in the application. ® 4 ® TUV Rheinland Raychem Circuit Protection Devices RXE Devices 165 RXE(7) 1/15/99 11:44 AM Page 166 RXE Radial Leaded 1. Define the circuit’s operating parameters. Fill in the following information about the circuit: Maximum ambient operating temperature Normal operating current Maximum operating voltage (RXE is 60 V max.) Maximum interrupt current ________________ ________________ ________________ ________________ 2. Select the PolySwitch RXE device that will accommodate the circuit’s maximum ambient operating temperature and mal operating current. norLook across the top of the table on the next page to find the temperature that most closely matches the circuit’s maximum ambient operating temperature. Look down that column to find the value equal to or greater than the circuit’s normal operating current. Now look to the far left of that row to find the part number for the RXE device that will best accommodate the circuit. The thermal derating curve located on the next page is a normalized representation of the data in the table located on the same page. 4 166 RXE Devices Raychem Circuit Protection Devices RXE(7) 1/15/99 11:44 AM Page 167 RXE IHold vs. temperature Maximum ambient –40° –20° 0.16 0.14 0.26 0.23 0.31 0.27 0.39 0.34 0.47 0.41 0.62 0.54 0.78 0.68 1.01 0.88 1.16 1.02 1.40 1.22 1.71 1.50 2.09 1.84 2.48 2.18 2.87 2.52 3.88 3.40 4.65 4.08 5.81 5.10 operating temperatures (°C) 0° 20° 40° 50° 0.12 0.10 0.08 0.07 0.20 0.17 0.14 0.12 0.24 0.20 0.16 0.14 0.30 0.25 0.20 0.18 0.36 0.30 0.24 0.22 0.48 0.40 0.32 0.29 0.60 0.50 0.41 0.36 0.77 0.65 0.53 0.47 0.89 0.75 0.61 0.54 1.07 0.90 0.73 0.65 1.31 1.10 0.89 0.79 1.61 1.35 1.09 0.97 1.90 1.60 1.30 1.15 2.20 1.85 1.50 1.33 2.98 2.50 2.03 1.80 3.57 3.00 2.43 2.16 4.46 3.75 3.04 2.70 Radial Leaded Part number RXE010 RXE017 RXE020 RXE025 RXE030 RXE040 RXE050 RXE065 RXE075 RXE090 RXE110 RXE135 RXE160 RXE185 RXE250 RXE300 RXE375 60° 0.06 0.11 0.13 0.16 0.19 0.25 0.32 0.41 0.47 0.57 0.69 0.85 1.01 1.17 1.58 1.89 2.36 70° 0.05 0.09 0.11 0.14 0.16 0.22 0.27 0.35 0.41 0.49 0.59 0.73 0.86 1.00 1.35 1.62 2.03 85° 0.04 0.07 0.08 0.10 0.12 0.16 0.20 0.26 0.30 0.36 0.44 0.54 0.64 0.74 1.00 1.20 1.50 4 Thermal derating curve 200 Percent of rated hold and trip current 150 100 50 0 –40 –20 0 20 40 60 80 Device’s ambient temperature (°C) Raychem Circuit Protection Devices RXE Devices 167 RXE(7) 1/15/99 11:44 AM Page 168 RXE Radial Leaded 3. Compare maximum operating voltages and maximum interrupt currents. Look down the first column of the table below to find the part number you selected in Step 1. Look to the right in that row to find the device’s maximum operating voltage (V max.) and maximum interrupt current (I max.). Compare both ratings with the circuit’s to be sure the circuit’s ratings do not exceed those of the RXE device. Maximum device voltages and currents Part number RXE010 RXE017 RXE020 RXE025 RXE030 RXE040 RXE050 RXE065 RXE075 RXE090 RXE110 RXE135 RXE160 RXE185 RXE250 RXE300 RXE375 V max. (volts) 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 I max.* (amps) 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 4 * Devices may withstand higher interrupt current at lower voltages. Each application will need to be individually qualified. 168 RXE Devices Raychem Circuit Protection Devices RXE(7) 1/15/99 11:44 AM Page 169 RXE 4. Determine time-to-trip. Radial Leaded Time-to-trip is the amount of time it takes for a device to switch to a high-resistance state once a fault current has been applied across the device. Identifying the RXE device’s time-to-trip is important in order to provide the desired protection capabilities. If the device you choose trips too fast, undesired or nuisance tripping will occur. If the device trips too slowly, the components being protected may be damaged before the device switches to a high-resistance state. The chart below shows the typical time-to-trip at 20°C for each PolySwitch RXE device. For example, the chart indicates that the typical time-to-trip for RXE050 at 5 A is 0.3 second. On the chart below, find the typical time-to-trip for the RXE device you selected. If the RXE device’s time-to-trip is too fast or too slow for the circuit, go back to Step 2 and choose an alternate device. Typical time-to-trip at 20°C 4 A= B= C= D= E= F= G= H= I= J= K= L= M= N= O= P= Q= RXE010 RXE017 RXE020 RXE025 RXE030 RXE040 RXE050 RXE065 RXE075 RXE090 RXE110 RXE135 RXE160 RXE185 RXE250 RXE300 RXE375 1000 A B CDE F G H I J K L M N OPQ 100 10 Time-to-trip (s) 1 0.1 0.01 0.001 0.1 1 Fault current (A) 10 100 Raychem Circuit Protection Devices RXE Devices 169 RXE(7) 1/15/99 11:44 AM Page 170 RXE Radial Leaded 5. Verify ambient operating conditions. Ensure that your application’s minimum and maximum ambient temperatures are within the operating temperature range of –40°C and 85°C. Maximum device surface temperature in the tripped state is 125°C. 6. Verify the RXE device’s dimensions. Using dimensions from the table below, compare the dimensions of the RXE device you selected with the application’s space considerations. Product dimensions (millimeters/inches) Part A B C D E F number RXE010 RXE017 RXE020 RXE025 RXE030 RXE040 RXE050 RXE065 RXE075 RXE090 RXE110 RXE135 RXE160 RXE185 RXE250 RXE300 RXE375 4 max. 7.4 (0.29) 7.4 (0.29) 7.4 (0.29) 7.4 (0.29) 7.4 (0.29) 7.6 (0.30) 7.9 (0.31) 9.7 (0.38) 10.4 (0.41) 11.7 (0.46) 13.0 (0.51) 14.5 (0.57) 16.3 (0.64) 17.8 (0.70) 21.3 (0.84) 24.9 (0.98) 28.5 (1.12) max. 12.7 (0.50) 12.7 (0.50) 12.2 (0.48) 12.7 (0.50) 13.0 (0.51) 13.5 (0.53) 13.7 (0.54) 14.5 (0.57) 15.2 (0.60) 15.8 (0.62) 18.0 (0.71) 19.6 (0.77) 21.3 (0.84) 22.9 (0.90) 26.4 (1.04) 30.0 (1.18) 33.5 (1.32) typ. 5.1 (0.20) 5.1 (0.20) 5.1 (0.20) 5.1 (0.20) 5.1 (0.20) 5.1 (0.20) 5.1 (0.20) 5.1 (0.20) 5.1 (0.20) 5.1 (0.20) 5.1 (0.20) 5.1 (0.20) 5.1 (0.20) 5.1 (0.20) 10.2 (0.40) 10.2 (0.40) 10.2 (0.40) min. 7.6 (0.30) 7.6 (0.30) 7.6 (0.30) 7.6 (0.30) 7.6 (0.30) 7.6 (0.30) 7.6 (0.30) 7.6 (0.30) 7.6 (0.30) 7.6 (0.30) 7.6 (0.30) 7.6 (0.30) 7.6 (0.30) 7.6 (0.30) 7.6 (0.30) 7.6 (0.30) 7.6 (0.30) max. 3.1 (0.12) 3.1 (0.12) 3.1 (0.12) 3.1 (0.12) 3.1 (0.12) 3.1 (0.12) 3.1 (0.12) 3.1 (0.12) 3.1 (0.12) 3.1 (0.12) 3.1 (0.12) 3.1 (0.12) 3.1 (0.12) 3.1 (0.12) 3.1 (0.12) 3.1 (0.12) 3.1 (0.12) 1.1 1.6 1.1 1.1 1.1 1.1 1.1 1.1 1.1 1.1 1.4 1.4 1.4 1.4 1.4 1.4 1.4 typ. (0.04) (0.06) (0.04) (0.04) (0.04) (0.04) (0.04) (0.04) (0.04) (0.04) (0.06) (0.06) (0.06) (0.06) (0.06) (0.06) (0.06) Lead size RXE010–RXE090 RXE010–RXE090* Ø 0.51 (0.020) 24 AWG Ø 0.81 (0.032) 20 AWG A Marking B E RXE110–RXE375** A Marking B E RXE110–RXE375 D * Straight leads are available. ** Kinked leads are available. C L C L D C CC LL F C L C L C CC LL F 170 RXE Devices Raychem Circuit Protection Devices RXE(7) 1/15/99 11:44 AM Page 171 RXE RXE Product Data Now that you have selected your RXE device, please review the device’s characteristics in this section to verify that the device will perform as required. Radial Leaded Electrical characteristics (20°C) Part Number RXE010 RXE017 RXE020 RXE025 RXE030 RXE040 RXE050 RXE065 RXE075 RXE090 RXE110 RXE135 RXE160 RXE185 RXE250 RXE300 RXE375 IH (A) 0.10 0.17 0.20 0.25 0.30 0.40 0.50 0.65 0.75 0.90 1.10 1.35 1.60 1.85 2.50 3.00 3.75 IT (A) 0.20 0.34 0.40 0.50 0.60 0.80 1.00 1.30 1.50 1.80 2.20 2.70 3.20 3.70 5.00 6.00 7.50 Max. time to trip (s) at 5 x IH 4.0 3.0 2.2 2.5 3.0 3.8 4.0 5.3 6.3 7.2 8.2 9.6 11.4 12.6 15.6 19.8 24.0 Pd (W) 0.38 0.48 0.41 0.45 0.49 0.56 0.77 0.88 0.92 0.99 1.50 1.70 1.90 2.10 2.50 2.80 3.20 Initial resistance R min. R max. (Ω) (Ω) 2.50 4.50 3.30 5.21 1.83 2.75 1.25 1.95 0.88 1.33 0.55 0.86 0.50 0.77 0.31 0.48 0.25 0.40 0.20 0.31 0.15 0.25 0.12 0.19 0.09 0.14 0.08 0.12 0.05 0.08 0.04 0.06 0.03 0.05 Post-trip resistance R1 max . (Ω) 7.50 8.00 4.40 3.00 2.10 1.29 1.17 0.72 0.60 0.47 0.38 0.30 0.22 0.19 0.13 0.10 0.08 4 IH = Hold current—maximum current at which the device will not trip at 20°C. IT = Trip current—minimum current at which the device will always trip at 20°C. Pd = Typical power dissipation—typical amount of power dissipated by the device when in tripped state in 20°C still air. R min. = Minimum device resistance at 20°C prior to tripping. R max. = Maximum device resistance at 20°C prior to tripping. R1 max. = Maximum device resistance at 20°C measured 1 hour post trip. Physical characteristics Lead material Soldering characteristics Insulating material RXE010: Tin coated nickel-copper alloy, 24 AWG, ∅ 0.51 mm/0.020 in RXE017–040: Tin/lead-plated copper-clad steel, 24 AWG, ∅ 0.51 mm/0.020 in RXE050–090: Tin/lead-plated copper, 24 AWG, ∅ 0.51 mm/0.020 in RXE110–375: Tin-plated copper, 20 AWG, ∅ 0.81 mm/0.032 in Solderability per MIL-STD-202, Method 208E Solder heat withstand per MIL-STD-202, Method 210, Condition B Cured, flame-retardant epoxy polymer; meets UL 94V-O requirements Note: Devices are not designed to be placed through a reflow process. Raychem Circuit Protection Devices RXE Devices 171 RXE(7) 1/15/99 11:44 AM Page 172 RXE Radial Leaded Agency recognitions UL CSA ¨ TUV File # E74889 File # CA78165C Certificate # R9477354 Environmental specifications Test Passive aging Humidity aging Thermal shock Solvent resistance Test method Raychem PS300 Raychem PS300 Raychem PS300 Raychem PS300, Method 215 Conditions 70°C, 1000 hours 85°C, 1000 hours 85°C, 85% R.H., 1000 hours 125°C, –55°C (10 times) MIL-STD-202, Method 215F Resistance change ±5% ±5% ±5% ±5% No change Component layouts 4 B The dimensions in the table below provide the component layout for each RXE device. Component layout dimensions (millimeters/inches) A B Device RXE010 RXE017 RXE020 RXE025 RXE030 RXE040 RXE050 RXE065 RXE075 RXE090 RXE110 RXE135 RXE160 RXE185 RXE250 RXE300 RXE375 A nom. 5.1 (0.20) 5.1 (0.20) 5.1 (0.20) 5.1 (0.20) 5.1 (0.20) 5.1 (0.20) 5.1 (0.20) 5.1 (0.20) 5.1 (0.20) 5.1 (0.20) 5.1 (0.20) 5.1 (0.20) 5.1 (0.20) 5.1 (0.20) 10.2 (0.40) 10.2 (0.40) 10.2 (0.40) B max. 1.0 (0.04) 1.7 (0.07) 1.0 (0.04) 1.0 (0.04) 1.0 (0.04) 1.2 (0.05) 1.2 (0.05) 1.5 (0.06) 1.5 (0.06) 1.5 (0.06) 1.2 (0.05) 1.2 (0.05) 1.5 (0.06) 1.5 (0.06) 1.7 (0.07) 2.0 (0.08) 2.0 (0.08) 172 RXE Devices Raychem Circuit Protection Devices RXE(7) 1/15/99 11:44 AM Page 173 RXE Tape and reel specifications (dimensions in millimeters) Radial Leaded Product availability: RXE010–RXE185 Devices taped using EIA468–B/IEC286-2 standards. See table below and Figures 1 and 2 for details. Dimension description Carrier tape width Hold down tape width Top distance between tape edges Sprocket hole position Sprocket hole diameter* Abscissa to plane (straight lead) Abscissa to plane (kinked lead) Abscissa to top: RXE010-RXE090 Abscissa to top: RXE110-RXE185* Overall width w/lead protrusion: RXE10-RXE90 Overall width w/o lead protrusion: RXE135-RXE185* Lead protrusion Protrusion of cutout Protrusion beyond hold-down tape Sprocket hole pitch: RXE010-RXE090 Sprocket hole pitch* Pitch tolerance Device pitch: RXE010-RXE090 Device pitch: RXE110-RXE185 Tape thickness Tape thickness with splice Splice sprocket hole alignment Body lateral deviation Body tape plane deviation Ordinate to adjacent component lead* Lead spacing* Reel width: RXE090-RXE135* Reel width: RXE160-RXE185* Reel diameter Space between flanges less device* Arbor hole diameter Core diameter* Box Consecutive missing places Empty places per reel * Differs from EIA specification. EIA mark W W4 W6 W5 D0 H H0 H1 H1 C1 C2 L1 L l2 P0 P0 IEC mark W W0 W2 W1 D0 H H0 H1 H1 I1 L l2 P0 P0 t t1 ∆h ∆p P1 F w2 w2 a w1 c n t ∆h ∆p P1 F w w d f h Dimensions Dim. (mm) 18 11 3 9 4 18.5 16 32.2 37.6 43.2 46.6 1.0 11 Not specified 12.7 25.5 20 consec. 12.7 25.4 0.9 2.0 0 0 0 3.81 5.08 56 63.5 370 4.75 26 91 56/372/372 None 0.1% max. Tol. (mm) –0.5/+1.0 min. max. –0.5/+0.75 –0.32/+0.2 ± 3.0 ± 0.5 max. max. max. max. max. max. ±0.3 ±0.5 ±1 4 max. max. ±0.3 ±1.0 ±1.3 ±1.0 ±0.8 max. max. max. -3.25/+9.25 ±12.0 max. max. Raychem Circuit Protection Devices RXE Devices 173 RXE(7) 1/15/99 11:44 AM Page 174 RXE ∆h Radial Leaded Figure 1: EIA Referenced Taped Component Dimensions ∆h ∆p ∆p Reference plane H1 L P1 F A B H1 C1 H C2 H0 W4 W5 W I2 L1 P0 D0 Direction of unreeling Cross section A - B t 4 Figure 2: Reel Dimensions Reel n a Direction of unreeling Upper side Tape Lower side c w1 w2 Cross section Optional shape: Circular or polygonal 174 RXE Devices Raychem Circuit Protection Devices RXE(7) 1/15/99 11:44 AM Page 175 RXE Ordering information Product description RXE010 RXE010-2 RXE010-AP RXE017 RXE017-2 RXE017-AP RXE020 RXE020-2 RXE020-AP RXE025 RXE025-2 RXE025-AP RXE030 RXE030-2 RXE030-AP RXE040 RXE040-2 RXE040-AP RXE050 RXE050-2 RXE050-AP RXE065 RXE065-2 RXE065-AP RXE075 RXE075-2 RXE075-AP RXE090 RXE090-2 RXE090-AP RXE0110 RXE110-2 RXE110-AP RXE135 RXE135-2 RXE135-AP RXE160 RXE160-2 RXE160-AP RXE185 RXE185-2 RXE185-AP RXE250 RXE300 RXE375 * Consult factory Radial Leaded Bag quantity 500 Tape and reel quantity 3000 AMMO pack Standard package 10000 15000 10000 10000 12500 7500 10000 15000 10000 10000 15000 10000 10000 15000 10000 10000 15000 10000 10000 15000 10000 10000 15000 10000 10000 15000 10000 10000 15000 10000 10000 7500 5000 10000 7500 5000 10000 7500 5000 10000 7500 5000 10000 10000 10000 RXE Devices 2000 500 2500 1500 500 3000 2000 500 3000 2000 500 3000 2000 500 3000 2000 500 3000 2000 500 3000 2000 500 3000 2000 500 3000 2000 500 1500 1000 500 1500 1000 500 1500 1000 500 1500 500 500 500 * * * 1000 * * * 4 Raychem Circuit Protection Devices 175 RXE(7) 1/15/99 11:44 AM Page 176 RXE Radial Leaded Part numbering system RXE suffix Blank -2 - AP -1 K S = Bulk packaged = Tape and reel = AMMO pack = 25.4-mm (1.0 inch) minimum lead length = Kinked leads = Straight leads Current rating Part marking system V 60 X185 NK8C V X 4 Example 176 RXE Devices V 60 Part description Voltage rating RXE010 RXE017 Raychem symbol RXE020 RXE025 RXE030 Part ID RXE040 RXE050 RXE065 Product family (RXE) RXE075 RXE090 Lot number/Date code RXE110 (may be on the back) RXE135 RXE160 RXE185 RXE250 RXE300 RXE375 Part ID 010 017 020 025 030 040 050 065 075 090 110 135 160 185 250 300 375 V WARNING: • Operation beyond maximum ratings or improper use may result in device damage and possible electrical arcing and flame. • These devices are intended for protection against occasional overcurrent or overtemperature fault conditions, and should not be used when repeated fault conditions are anticipated. 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