PBX50R000B ALPHAELECTRONICS | Alldatasheet
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www.alpha-elec.co.jp PB, PC Series For any questions, contact sales-alpha@alpha-elec.co.jp Document No.: 67013 Revision: 25-Apr-2016 Ultra Precision Power Resistor (10 Watts) COMPOSITION OF TYPE NUMBER PB X 50R000 B Resistance value, in ohm, is expressed by a series of six characters, five of which represent significant digits. R or K is a dual-purpose letter that designates both the value range (R for ohmic; K for kilo-ohm) and the location of decimal point. CONFIGURATION (DIMENSIONS IN mm) F W D T d L PB F W I I V IV IV V D T d L PC Schematic of PC 4-Terminal Connection Type PB PC L 40.0±0.2 L1 20.0±0.2 L2 30.0±0.5 W 20.0±0.2 T 5.0±0.2 T1 1.0±0.1 F 15.0±0.5 ℓ 30±10 D Dia. 4.0 TCR, RESISTANCE RANGE, TOLERANCE, RATED POWER Type TCR (ppm/°C) –25°C to 125°C* Resistance Range (Ω) Resistance Tolerance (%)*† Rated Power (W) at 25°C PB 0±15 (W) 0.4 to 1 1 to ±5 (F , G, J) in free air and On heat sink ** 0±15 (W) 0±5 (X) 0±2.5 (Y) 1 to 5 ±0.5 to ±5 (D, F , G, J) 5 to 10 ±0.1 to ±5 (B, D, F , G, J) 10 to 25 ±0.05 to ±5 (A, B, D, F , G, J) 25 to 50 ±0.02 to ±5 (Q, A, B, D, F , G, J) 50 to 50k ±0.01 to ±5 (T, Q, A, B, D, F , G, J) PC 0±15 (W) 0.002 to 0.05 ±0.5 to ±5 (D, F , G, J) 0±15 (W) (D, F , G, J) 0±15 (W) 0±5 (X) 0±2.5 (Y) 0.1 to 5 ±0.1 to ±5 (B, D, F , G, J) 5 to 10 ±0.05 to ±5 (A, B, D, F , G, J) 10 to 25 ±0.02 to ±5 (Q, A, B, D, F , G, J) 25 to 100 ±0.01 to ±5 (T, Q, A, B, D, F , G, J) * Symbols in parentheses are for type number composition. † Resistance figures for type PB are the values obtained by measuring the leads at point 12.7±3.2 mm away from the root, but in case of resistance below 10 ohm, the values at 5.08±0.6 mm away. ** For heat sinking, an aluminum chassis in 152.4 (L) x 101.6 (W) x 50.8 (H) x 1.0 mm (T) shall be used. POWER DERATING CURVE Ultra Precision Power Resistor (10 Watts) PB PC
www.alpha-elec.co.jp PB, PC Series For any questions, contact sales-alpha@alpha-elec.co.jp Document No.: 67013 Revision: 25-Apr-2016 PERFORMANCE Parameters Test Condition MIL-R-39009 Specification ALPHA Typical Test Data Maximum Rated Operating Temperature Working Temperature Range Maximum Working Voltage Maximum Working Current 25°C –55°C to +155°C 750V PB=5A, PC=32A Power Conditioning 25°C, Rated Voltage, 96 hrs. ±0.2% ±0.2% Low Temperature Storage Dielectric Withstanding Voltage Insulation Resistance Low Temperature Operation Overload Moisture Resistance Terminal Strength –55°C, No Load, 24 hrs. DC 500V, 2 min. –55°C, Rated Voltage Rated Voltage x 2.5, 5 sec. +65°C to –10°C, 90% RH to 98% RH, Rated Voltage, 10 cycles (240 hrs.) 2.27 kg (5 pounds),10 sec. ±0.3% ±0.2% over 10,000 MΩ ±0.3% ±0.3% ±0.5% ±0.2% ±0.005% ±0.005% over 10,000 MΩ ±0.005% ±0.01% ±0.05% ±0.005% Shock Vibration, High Frequency 100G, 6 ms., Sawtooth Wave, X, Y , Z, each 3 shocks 20G, 10 Hz to 2,000 Hz to 10 Hz, 20 min., X, Y , Z, each 4 hrs. ±0.2% ±0.2% ±0.005% ±0.005% High Temperature Exposure 155°C, No Load, 2,000 hrs. ±1.0% ±0.01% Solderability 245°C, 5 sec. over 95% coverage FREQUENCY CHARACTERISTICS 15 10 50 100 (MHz) Frequency R(AC)/R(DC) 150 100 (%) PB 0.4Ω 100Ω 2 kΩ 10Ω FOUR-TERMINAL RESISTOR For low ohmic resistor (less than 10 ohm), the resistance value and TCR of the copper lead increases overall resistance value. Four-terminal (Kelvin) connection is recommended per the following figure. Loading current at terminals (V) causes measurement error. TEMPERATURE OF RESISTOR SURFACE 12 34 56 78 91 0 On Aluminum Chassis Temperature Rise (W) Applied Power /H9004T (°C) B (19.2°C/W) B (4.9°C/W) A (3.4°C/W) A (15.5°C/W) In Free Air Spots for Temperature Measurement (in still air) Aluminum Chassis Screwed Down A: Mold Surface B: Element Surface 152.4 mm (L) x 101.6 mm (W) x 50.8 mm (H) x 1.0 mm (T) AFFECT OF PB TYPE LEAD FOR RESISTANCE VALUE AND TCR Resistance Value of Lead: 0.36V/cm TCR of Lead: 3,900 ppm/°C 0.1 0.01 0.001 0.0001 0.00001 (%) 1k1001010.1 Nominal Resistance Value (V) f 0.8 Solder-Plated Copper/L=1cm 100 0.1 0.01 0.001 (ppm/°C) Resistance Value TCR Additional Resistance Value Additional TCR