NFR25/25H Vishay BCcomponents Fusible, Non-Flammable Metal Film Leaded Resistors FEATURES * Overload protection without risk of fire * Wide range of overload currents (refer Fusing Characteristics graphs) * Lead (Pb)-free solder contacts A homogenous film of metal alloy is deposited on a high grade ceramic body. After a helical groove has been cut in the resistive layer, tinned connecting wires of electrolytic copper are welded to the end-caps. The resistors are coated with a grey, flame retardant lacquer which provides electrical, mechanical, and climatic protection. The encapsulation is resistant to all cleaning solvents in accordance with IEC 60068-2-45. * Pure tin plating provides compatibility with lead (Pb)-free and lead containing soldering processes * Compliant to RoHS directive 2002/95/EC APPLICATIONS * Audio * Video TECHNICAL SPECIFICATIONS VALUE DESCRIPTION NFR25 NFR25H 0.22 to 15 k Resistance Range (1) Resistance Tolerance and Series 5 %; E24 series Rated Dissipation, P70 0.33 W 0.5 W 240 K/W 150 K/W 0.22 R 4.7 200 ppm/K 200 ppm/K 4.7 < R 15 200 ppm/K 100 ppm/K 15 < R 15 k 100 ppm/K 100 ppm/K 250 V 350 V Thermal Resistance Rth Temperature Coefficient: Maximum Permissible Voltage, Umax. (DC or RMS) Basic Specifications IEC 60115-1 Climatic Category (IEC 60068-1) 55/155/56 Stability After: Load (1000 h, P70): R max.: (1 % R + 0.05 ) Long Term Damp Heat Test (56 Days) R max.: (1 % R + 0.05 ) Soldering (10 s, 260 C) R max.: (0.25 % R + 0.05 ) Notes (1) Ohmic values (other than resistance range) are available on request * R value is measured with probe distance of 24 mm 1 mm using 4-terminal method www.vishay.com 126 For technical questions, contact: filmresistorsleaded@vishay.com Document Number: 28737 Revision: 05-Oct-09 NFR25/25H Fusible, Non-Flammable Metal Film Leaded Resistors Vishay BCcomponents PART NUMBER AND PRODUCT DESCRIPTION PART NUMBER: NFR2500002207JA100 N F R 2 5 0 0 0 0 2 2 0 7 J A 1 0 0 MODEL/SIZE VARIANT TCR/MATERIAL VALUE TOLERANCE PACKAGING (1) SPECIAL NFR2500 NFR25H0 0 = Neutral Z = Value overflow (Special) 0 = Standard 3 digit value 1 digit multiplier MULTIPLIER 7 = *10-3 8 = *10-2 9 = *10-1 0 = *100 1 = *101 2 = *102 J=5% N4 A5 A1 R5 The 2 digits are used for all special parts. 00 = Standard PRODUCT DESCRIPTION: NFR25 5 % A1 R22 NFR25 5% A1 R22 MODEL/SIZE NFR25 NFR25H TOLERANCE 5% PACKAGING (1) N4 A5 A1 R5 RESISTANCE VALUE 1K0 = 1 k 4R7 = 4.7 Notes (1) Please refer to table PACKAGING for details * The PART NUMBER is shown to facilitate the introduction of a unified part numbering system for ordering products PACKAGING AMMO PACK MODEL NFR25, NFR25H NFR25, NFR25H REEL TAPING PIECES CODE 5000 A5 1000 A1 4000 N4 Axial, 52 mm Radial PIECES CODE 5000 R5 - - DIMENSIONS L1 O d O D L2 Outline DIMENSIONS - Resistor types and relevant physical dimensions TYPE O Dmax. L1 max. L2 max. Od 2.5 6.5 7.5 0.58 0.05 NFR25 NFR25H Document Number: 28737 Revision: 05-Oct-09 For technical questions, contact: filmresistorsleaded@vishay.com www.vishay.com 127 NFR25/25H Fusible, Non-Flammable Metal Film Leaded Resistors Vishay BCcomponents PRODUCTS WITH RADIAL LEADS (NFR25, NFR25H) P2 P H1 H H0 L L1 W0 W P0 F P1 D0 DIMENSIONS - RADIAL TAPING SYMBOL PARAMETER VALUE TOLERANCE P Pitch of components 12.7 1.0 UNIT mm P0 Feed-hole pitch 12.7 0.2 mm P1 Feed-hole centre to lead at topside at the tape 3.85 0.5 mm P2 Feed-hole center to body center 6.35 1.0 mm F Lead-to-lead distance 4.8 + 0.7/- 0 mm W Tape width 18.0 0.5 mm W0 Minimum hold down tape width 5.5 - mm H1 Component height 29 Max. mm H0 Lead wire clinch height 16.5 0.5 mm H Height of component from tape center 19.5 1 mm mm D0 Feed-hole diameter 4.0 0.2 L Maximum length of snipped lead 11.0 - mm L1 Minimum lead wire (tape portion) shortest lead 2.5 - mm Note * Please refer document number 28721 "Packaging" for more detail OUTLINES MASS PER UNIT TYPE The length of the body (L1) is measured by inserting the leads into holes of two identical gauge plates and moving these plates parallel to each other until the resistor body is clamped without deformation (IEC 60294). MASS (mg) NFR25 201 NFR25H 201 MARKING The nominal resistance and tolerance are marked on the resistor using four colored bands in accordance with IEC 60062, marking codes for resistors and capacitors. For ease of recognition a fifth ring is added, which is violet for type NFR25 and white for type NFR25H. FUNCTIONAL PERFORMANCE PRODUCT CHARACTERIZATION Standard values of nominal resistance are taken from the E24 series for resistors with a tolerance of 5 %. The values of the E24 series are in accordance with IEC 60063. LIMITING VALUES LIMITING VOLTAGE U (1) (V) LIMITING POWER P70 (W) NFR25 250 0.33 NFR25H 350 0.5 TYPE Note (1) The maximum voltage that may be continuously applied to the resistor element, see IEC 60115-1. The maximum permissible hot-spot temperature is 155 C. www.vishay.com 128 For technical questions, contact: filmresistorsleaded@vishay.com Document Number: 28737 Revision: 05-Oct-09 NFR25/25H Fusible, Non-Flammable Metal Film Leaded Resistors The power that the resistor can dissipate depends on the operating temperature. Vishay BCcomponents The resistors will fuse without the risk of fire and within an indicated range of overload. Fusing means that the resistive value of the resistor increases at least 100 times. The fusing characteristic is measured under constant voltage. Pmax. (%Prated) 10 3 t (s) 100 10 2 50 10 1 0 - 55 0 50 70 100 155 Tamb (C) Maximum dissipation (Pmax.) in percentage of rated power as a function of the ambient temperature (Tamb) Derating 10 3 10 -1 8 12 16 20 24 Poverload (W) NFR25 This graph is based on measured data which may deviate according to the application. Fusing Characteristics: 1 t (s) 10 2 10 2 10 10 1 1 0 4 8 Poverload (W) 12 NFR25 This graph is based on measured data which may deviate according to the application. Fusing Characteristics: 1 R 15 10 3 10 -1 0 4 8 Poverload (W) 12 NFR25 This graph is based on measured data which may deviate according to the application. Fusing Characteristics: 15 R 15 k 10 3 t (s) t (s) 10 2 10 2 10 10 1 1 10 -1 4 10 3 t (s) 10 -1 0 0 4 8 12 16 20 24 10 -1 0 4 8 NFR25H This graph is based on measured data which may deviate according to the application. Fusing Characteristics: 1 12 16 20 24 Poverload (W) Poverload (W) NFR25H This graph is based on measured data which may deviate according to the application. Fusing Characteristic: 1 R 15 k Fusing Characteristics Document Number: 28737 Revision: 05-Oct-09 For technical questions, contact: filmresistorsleaded@vishay.com www.vishay.com 129 NFR25/25H Fusible, Non-Flammable Metal Film Leaded Resistors Vishay BCcomponents 103 Pmax. (W) 103 t p /t i = 1000 500 200 100 10 50 20 10 5 1 2 10-1 10-6 10-5 10-4 10-3 10-2 10-1 t i (s) 1 NFR25 Pulse on a regular basis; maximum permissible peak pulse power (Pmax.) as a function of pulse duration (ti), 0.22 R < 15 103 Pmax. (W) 102 10 t p / t i = 1000 100 1 20 2 10-1 10-6 10-5 10-4 10-3 10-2 10-1 t i (s) 1 NFR25 Pulse on a regular basis; maximum permissible peak pulse power (Pmax.) as a function of pulse duration (ti), 15 < R 15 k 600 Umax. (V) 500 400 300 200 100 0 10-6 10-5 10-4 10-3 10-2 10-1 t i (s) 1 NFR25 Pulse on a regular basis; maximum permissible peak pulse voltage Umax. as a function of pulse duration (ti) Pulse Loading Capabilities www.vishay.com 130 For technical questions, contact: filmresistorsleaded@vishay.com Document Number: 28737 Revision: 05-Oct-09 NFR25/25H Fusible, Non-Flammable Metal Film Leaded Resistors Vishay BCcomponents 103 Pmax. (W) t p /t i = 1000 500 200 100 50 102 20 10 10 5 2 1 10-1 10-6 10-5 10-4 10-3 10-2 10-1 t i (s) 1 NFR25H Pulse on a regular basis; maximum permissible peak pulse power (Pmax.) as a function of pulse duration (ti) 1200 Umax. (V) 800 400 0 10-6 10-5 10-4 10-3 10-2 10-1 t i (s) 1 NFR25H Pulse on a regular basis; maximum permissible peak pulse voltage (Umax.) as a function of pulse duration (ti) Pulse Loading Capabilities 100 T (K) 80 60 40 20 0 0 0.2 0.4 P (W) 0.6 NFR25 Hot-spot temperature rise (T) as a function of dissipated power Application Information Document Number: 28737 Revision: 05-Oct-09 For technical questions, contact: filmresistorsleaded@vishay.com www.vishay.com 131 NFR25/25H Fusible, Non-Flammable Metal Film Leaded Resistors Vishay BCcomponents 100 50 T (K) T (K) 80 40 5 mm 30 60 10 mm 15 mm 20 40 10 20 0 0 0.2 0.4 P (W) 0 0.6 0 0.2 0.4 P (W) 0.6 Minimum distance from resistor body to PCB = 1 mm NFR25 Temperature rise (T) at the lead end (soldering point) as a function of dissipated power at various lead lengths after mounting NFR25H Hot-spot temperature rise (T) as a function of dissipated power. 50 T (K) 5 mm 40 10 mm 30 15 mm 20 10 0 0 0.2 0.4 P (W) 0.6 Minimum distance from resistor body to PCB = 1 mm NFR25H Temperature rise (T) at the lead end (soldering point) as a function of dissipated power at various lead lengths after mounting Application Information TESTS AND REQUIREMENTS Essentially all tests are carried out in accordance with IEC 60115-1 specification, category LCT/UCT/56 (rated temperature range: Lower category temperature, upper category temperature; damp heat, long term, 56 days). The tests are carried out in accordance with IEC 60068-2-xx test method, "Recommended basic climatic and mechanical robustness testing procedure for electronic components" and under standard atmospheric conditions according to IEC 60068-1, 5.3. www.vishay.com 132 In the Test Procedures and Requirements table the tests and requirements are listed with reference to the relevant clauses of IEC 60115-1 and IEC 60068-2-xx test methods. A short description of the test procedure is also given. In some instances deviations from the IEC recommendations were necessary for our method of specifying. For inflammability requirements reference is made to IEC 60115-1. All soldering tests are performed with mildly activated flux. For technical questions, contact: filmresistorsleaded@vishay.com Document Number: 28737 Revision: 05-Oct-09 NFR25/25H Fusible, Non-Flammable Metal Film Leaded Resistors Vishay BCcomponents TEST PROCEDURES AND REQUIREMENTS IEC 60115-1 CLAUSE IEC 60068-2TEST METHOD 4.4.1 4.4.2 REQUIREMENTS TEST Visual examination Dimensions (outline) Resistance (refer note on first page for measuring distance) 4.5 4.18 20 (Tb) 4.29 45 (Xa) Resistance to soldering heat Component solvent resistance 4.17 20 (Ta) Solderability Solderability (after aging) 4.16.2 21 (Ua1) 4.16.3 21 (Ub) 4.16.4 21 (Uc) Voltage proof on insulation Robustness of terminations: Tensile all samples Bending half number of samples Torsion other half of samples 4.20 29 (Eb) Bump 4.22 6 (Fc) Vibration 4.19 14 (Na) 4.7 4.16 4.23 4.23.2 2 (Ba) 4.23.3 30 (Db) 4.23.4 4.23.5 1 (Aa) 13 (M) Rapid change of temperature Climatic sequence: Dry heat Damp heat (accelerated) 1st cycle Cold Low air pressure 4.23.6 30 (Db) Damp heat (accelerated) remaining cycles 4.24 78 (Cab) Damp heat (steady state) 4.25.1 Endurance (at 70 C) 4.25.3 Endurance at upper category temperature 4.8 Temperature coefficient 4.12 4.26 Noise Accidental overload 4.6.1.1 Insulation resistance Document Number: 28737 Revision: 05-Oct-09 PROCEDURE Gauge (mm) Applied voltage (+ 0/- 10 %): R < 10 : 0.1 V 10 R < 100 : 0.3 V 100 R < 1 k: 1 V 1 k R < 10 k: 3 V 10 k R 15 k: 10 V Thermal shock: 10 s; 260 C; 3 mm from body Isopropyl alcohol or H2O followed by brushing 2 s; 235 C: Solder bath method; SnPb40 3 s; 245 C: Solder bath method; SnAg3Cu0.5 8 h steam or 16 h 155 C; leads immersed 6 mm; for 2 s at 235 C: Solder bath (SnPb40) for 3 s at 245 C: Solder bath (SnAg3Cu0.5) method URMS = 500 V during 1 min; metal block method NFR25 NFR25H No holes; clean surface; no damage See Dimensions Table R - Rnom: max. 5 % R max.: (0.25 % R + 0.05 ) No visual damage Good tinning ( 95 % covered); no damage Good tinning ( 95 % covered); no damage No breakdown or flashover Load 10 N; 10 s Number of failures < 10 x 10-6 Load 5 N; 4 x 90 Number of failures < 10 x 10-6 3 x 360 in opposite directions No damage R max.: (0.25 % R + 0.05 ) No damage R max.: (0.25 % R + 0.05 ) 3 x 1500 bumps in 3 directions; 40 g Frequency 10 Hz to 500 Hz; displacement 1.5 mm or acceleration 10 g; 3 directions; total 6 h (3 x 2 h) 30 min at LCT and 30 min at UCT; 5 cycles No damage R max.: (0.25 % R + 0.05 ) No visual damage R max.: (0.25 % + 0.05 ) 16 h; 155 C 24 h; 55 C; 90 % to 100 % RH 2 h; - 55 C 2 h; 8.5 kPa; 15 C to 35 C Rins min.: 103 M R max.: (1.5 % R + 0.1 ) 5 days; 55 C; 95 % to 100 % RH 56 days; 40 C; 90 % to 95 % RH; loaded with 0.01 P70 (IEC steps: 0 V to 100 V) 1000 h; loaded with P70 or Umax.; 1.5 h ON and 0.5 h OFF 1000 h; no load Between - 55 C and + 155 C 0.22 R 4.7 4.7 < R 15 15 < R 15 k IEC 60195 Cheese-cloth Maximum voltage Umax. DC = 500 V after 1 min; metal block method Rins max.: 1000 M R max.: (1 % R + 0.05 ) R max.: (1 % R + 0.05 ) R max.: (1 % R + 0.05 ) 200 ppm/K 200 ppm/K 200 ppm/K 100 ppm/K 100 ppm/K 100 ppm/K < 0.1 V/V Non flammable For technical questions, contact: filmresistorsleaded@vishay.com Rins min.: 104 M www.vishay.com 133 NFR25/25H Vishay BCcomponents Fusible, Non-Flammable Metal Film Leaded Resistors 12NC INFORMATION FOR HISTORICAL CODING REFERENCES * The resistors have a 12-digit numeric code starting with 23 Last Digit of 12NC Indicating Resistance Decade * The subsequent 7 digits indicate the resistor type and packaging RESISTANCE DECADE LAST DIGIT 0.22 to 0.91 7 - The first 2 digits indicate the resistance value 1 to 9.1 8 - The last digit indicates the resistance decade 10 to 91 9 100 to 910 1 1 k to 9.1 k 2 10 k to 15 k 3 * The remaining 3 digits indicate the resistance values: 12NC Example The 12NC for a NFR25 resistor with value 750 , supplied on a bandolier of 1000 units in ammopack is: 2322 205 13751. 12NC - Resistor type and packaging 23.. ... ..... BANDOLIER ON REEL BANDOLIER IN AMMOPACK TYPE RADIAL TAPED STRAIGHT LEADS STRAIGHT LEADS 4000 UNITS 1000 UNITS 5000 UNITS 5000 UNITS NFR25 06 204 03... 22 205 13... 22 205 33... 22 205 23... NFR25H 06 207 03... 22 207 13... 22 207 33... 22 207 23... www.vishay.com 134 For technical questions, contact: filmresistorsleaded@vishay.com Document Number: 28737 Revision: 05-Oct-09 Legal Disclaimer Notice Vishay Disclaimer All product specifications and data are subject to change without notice. Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively, "Vishay"), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein or in any other disclosure relating to any product. Vishay disclaims any and all liability arising out of the use or application of any product described herein or of any information provided herein to the maximum extent permitted by law. The product specifications do not expand or otherwise modify Vishay's terms and conditions of purchase, including but not limited to the warranty expressed therein, which apply to these products. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document or by any conduct of Vishay. The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications unless otherwise expressly indicated. Customers using or selling Vishay products not expressly indicated for use in such applications do so entirely at their own risk and agree to fully indemnify Vishay for any damages arising or resulting from such use or sale. Please contact authorized Vishay personnel to obtain written terms and conditions regarding products designed for such applications. Product names and markings noted herein may be trademarks of their respective owners. Document Number: 91000 Revision: 18-Jul-08 www.vishay.com 1