DISCRETE CERAMICS DATA SHEET www.phycomp-components.com SRC01 5% Surge chip resistors size 1206 Product specification Supersedes data of 27th April 2001 2001 May 28 Rev.4 Phycomp Product specification Surge chip resistors size 1206 FEATURES SRC01 5% QUICK REFERENCE DATA • Reduced size of final equipment DESCRIPTION VALUE • Low assembly costs Resistance range • Higher component and equipment reliability 1 Ω to 100 kΩ Resistance tolerance ±5% E24 series Temperature coefficient ≤±200 × 10−6/K Absolute maximum dissipation at Tamb = 70°C 0.25 W APPLICATIONS Maximum permissible voltage 200 V (DC or RMS) • Power supply in small sized equipment Climatic category (IEC 60068) 55/155/56 Basic specification IEC 60115-8 • Excellent performance at high frequency. • Telecommunication • Medical and Military ORDERING INFORMATION • Automotive industry. Table 1 Ordering code indicating resistor type and packing ORDERING CODE 2350 550 ..... DESCRIPTION The resistors are constructed on a high grade ceramic body (aluminium oxide). Internal metal electrodes are added at each end and connected by a resistive paste which is applied to the top surface of the substrate. The composition of the paste is adjusted to give the approximate resistance required and the value is trimmed to within tolerance, by laser cutting of this resistive layer. The resistive layer is covered with a protective coating and printed with the resistance value. Finally, the two external end terminations are added. For ease of soldering the outer layer of these end terminations is a lead/tin alloy. 2001 May 28 Rev.4 TYPE RESISTANCE RANGE TOL. (%) PAPER TAPE ON REEL 5000 units SRC01 1 Ω to 100 kΩ 5 Ordering code (12NC) • The resistors have a 12-digit ordering code starting with 2350 550. • The subsequent 2 digits indicate the resistor type and packing; see Table 1. • The remaining 3 digits indicate the resistance value: – The first 2 digits indicate the resistance value. – The last digit indicates the resistance decade in accordance with Table 2. 2 10 ... Table 2 Last digit of 12 NC RESISTANCE LAST DIGIT 1 to 9.76 Ω 8 10 to 97.6 Ω 9 100 to 976 Ω 1 1 to 9.76 kΩ 2 10 to 97.6 kΩ 3 100 kΩ 4 ORDERING EXAMPLE The ordering code of a SRC01 resistor, value 750 Ω with a tolerance of 5%, supplied on paper tape of 5000 units per reel is: 2350 550 10751. www.phycomp-components.com Phycomp Product specification Surge chip resistors size 1206 SRC01 5% FUNCTIONAL DESCRIPTION DERATING Product characterization The power that the resistor can dissipate depends on the operating temperature; see Fig.1. 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 publication 60063”. CCB412 handbook, 4 columns Pmax (%Prated) 100 Limiting values LIMITING LIMITING VOLTAGE(1) POWER (V) (W) TYPE SRC01 200 50 0.25 0 −55 Note 1. This is the maximum voltage that may be continuously applied to the resistor element, see “IEC publication 60115-8”. Fig.1 0 50 70 100 155 Tamb (°C) Maximum dissipation (Pmax) in percentage of rated power as a function of the ambient temperature (Tamb). PULSE LOADING CAPABILITIES CCB547 102 handbook, full pagewidth Pmax (W) SRC01 10 RC01 1 0 0 0.2 0.4 0.6 0.8 1.0 t (s) Fig.2 2001 May 28 Rev.4 ˆ Pulse on a regular basis; maximum permissible peak pulse power ( P max ) as a function of pulse duration for R = 1 Ω, single pulse. 3 www.phycomp-components.com Phycomp Product specification Surge chip resistors size 1206 MECHANICAL DATA SRC01 5% Outlines Mass per 100 units TYPE SRC01 MASS (g) protective coat resistor layer 1.0 inner electrode Marking T end termination All resistors are marked with a 3-digit code on the protective coat to designate the nominal resistance value. ceramic substrate tb protective coat 3-DIGIT MARKING tt For values up to 1 kΩ the R is used as a decimal point. For values of 1 kΩ or greater the first 2 digits apply to the resistance value and the third indicates the number of zeros to follow. marking 101 W CCB545 Example MARKING 10R 102 104 L RESISTANCE 10 Ω 1 kΩ Fig.3 Outlines. 100 kΩ PACKAGE MARKING The packing is also marked and includes resistance value, tolerance, catalogue number, quantity, production period, batch number and source code. 2001 May 28 Rev.4 For dimensions see Table 3. Table 3 Chip resistor type and relevant physical dimensions; see Fig.3 TYPE L (mm) W (mm) T (mm) tt (mm) tb (mm) SRC01 3.20 +0.10/−0.20 1.60 ±0.15 0.55 ±0.10 0.45 ±0.25 0.50 ±0.25 4 www.phycomp-components.com Phycomp Product specification Surge chip resistors size 1206 SRC01 5% Unless otherwise specified the following values apply: TESTS AND REQUIREMENTS Temperature: 15 °C to 35 °C Essentially all tests are carried out in accordance with the schedule of “IEC publication 60115-8”, category 55/155/56 (rated temperature range −55 to +155 °C; damp heat, long term, 56 days). The testing also covers the requirements specified by EIA and EIAJ. Relative humidity: 45% to 75% Air pressure: 86 kPa to 106 kPa. In Table 4 the tests and requirements are listed with reference to the relevant clauses of “IEC publications 60115-8 and 60068”; 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. The tests are carried out in accordance with IEC publication 60068, “Recommended basic climatic and mechanical robustness testing procedure for electronic components” and under standard atmospheric conditions according to “IEC 60068-1”, subclause 5.3. All soldering tests are performed with mildly activated flux. Table 4 Test procedures and requirements IEC 60115-8 CLAUSE IEC 60068-2 TEST METHOD TEST PROCEDURE REQUIREMENTS Tests in accordance with the schedule of IEC publication 60115-8 4.4.1 visual examination 4.5 resistance applied voltage (+0/−10%): 0.1 V R − Rnom: max. ±5% resistance to soldering heat unmounted chips; 10 ±1 s; 260 ±5 °C no visible damage 4.18 20 (Tb) no holes; clean surface; no visible damage ∆R/R max.: ±(1% +0.05 Ω) 4.29 45 (Xa) component solvent isopropyl alcohol; H2O resistance no visible damage 4.17 20 (Ta) solderability unmounted chips completely immersed for 2 ±0.5 s in a solder bath at 235 ±2 °C good tinning (≥95% covered); no damage 4.17 20 (Ta) solderability (after ageing) 8 hours steam or 16 hours at 155 °C; unmounted chips completely immersed for 2 ±0.5 s in a solder bath at 235 ±2 °C good tinning (≥95% covered); no damage 4.7 voltage proof on insulation 200 V (RMS) during 1 minute no breakdown or flashover 4.13 short time overload room temperature; dissipation 6.25 × Pn; 5 s (voltage not more than 2 × Vmax) ∆R/R max.: ±(2% +0.1 Ω) (JIS) C 5200 bending resistors mounted on a 90 mm glass epoxy resin printed-circuit board; bending: 5 mm no visible damage 14 (Na) rapid change of temperature 30 minutes at LCT and 30 minutes at UCT; 5 cycles no visible damage insulation resistance 100 V (DC) after 1 minute Rins min.: 1000 MΩ damp heat (steady state) 56 days; 40 ±2 °C; 93 +2/−3% RH; loaded with 0.01 Pn Rins min.: 1000 MΩ 4.33 4.19 4.6.1.1 4.24.2 3 (Ca) 2001 May 28 Rev.4 5 ∆R/R max.: ±(0.5% +0.05 Ω) ∆R/R max.: ±(1.5% +0.05 Ω) ∆R/R max.: ±(1.5% +0.05 Ω) www.phycomp-components.com Phycomp Product specification Surge chip resistors size 1206 IEC 60115-8 CLAUSE IEC 60068-2 TEST METHOD 4.25.1 4.23.2 27 (Ba) 4.8.4.2 TEST SRC01 5% PROCEDURE REQUIREMENTS endurance 1000 +48/−0 hours; 70 ±2 °C; loaded with Pn or Vmax; 1.5 hours on and 0.5 hours off ∆R/R max.: ±(1% +0.05 Ω) endurance at upper category temperature 1000 +48/−0 hours; 155 °C; no load no visible damage temperature coefficient at 20/LCT/20 °C and 20/UCT/20 °C ≤±200 × 10−6/K leaching unmounted chips 60 ±1 s; 260 ±5 °C good tinning; no leaching resistance to damp heat (steady state) 1000 +48/−0 hours; 40 ±2 °C; 93 +2/−3% RH; loaded with Pn or Vmax; 1.5 hours on and 0.5 hours off ∆R/R max.: ±3% ∆R/R max.: ±(1% +0.05 Ω) Other applicable tests (JIS) C 5202 7.5 2001 May 28 Rev.4 6 www.phycomp-components.com Phycomp Product specification Surge chip resistors size 1206 SRC01 5% REVISION HISTORY Revision Date Change Notification Rev.3 2001 Apr 27 – Rev.4 2001 May 28 2001 May 28 Rev.4 Description - Converted to Phycomp brand - 2% range discontinued 7 www.phycomp-components.com