MODELS SMA and OMA Metal Film Resistors Semi-Precision, Zero Ohm Jumpers (OMA) FEATURES * Leads are electroplated, high purity copper * Dual rated parts provide high density board mounting * Temperature coefficient for SMA 0207S, 1% is 50PPM/C * Green, multilayer liquid epoxy system provides excellent moisture and mechanical protection STANDARD ELECTRICAL SPECIFICATIONS WATTAGE RATING DUAL STANDARD RESISTANCE RANGE TEMPERATURE COEFFICIENT PPM/C 100 @ + 70C @ + 125C @ + 70 C VOLTAGE RATING (Ohms) STANDARD TOLERANCE SMA 0204 1/8 1/10 1/2 200 1 - 1M 1%, 5% SMA 0207S 1/4 1/8 1/2 300 1 - 5.1M 1% 50 SMA 0207S 1/4 1/8 1/2 300 1 - 5.1M 2%, 5% 100 SMA 0309S 1/2 1/4 1 350 1 - 2.21M 1% 100 SMA 0309S 1/2 1/4 1 350 1 - 5.1M 2%, 5% 100 MODEL OMA 0207 (Zero Ohm Jumper) OMA 0204 (Zero Ohm Jumper) DIMENSIONAL CONFIGURATIONS [Numbers in brackets indicate millimeters] B 1.10 [27.94] Min. A C MODEL D A B C D SMA 0204/ OMA 0204 .142 .010 [3.61 .254] .071 [1.80] .160 [4.06] (Max.) (Max.) .020 [.508] SMA 0207S/ OMA 0207 .235 .020 [5.97 .508] .090 .008 [2.29 .203] .281 [7.14] .024 [.610] SMA 0309S .303 .020 [7.70 .508] .110 .008 [2.79 .203] .375 [9.53] .026 [.660] ENVIRONMENTAL PERFORMANCE MAXIMUM R TEST SMA 0204 SMA 0207S SMA 0207S SMA 0309S SMA 0309S OMA 0207 OMA 0204 Thermal Shock 0.25% 0.25% 0.25% 0.25% 0.25% Short Time Overload 0.25% 0.25% 0.25% 0.25% 0.25% Zero Ohm Jumper Zero Ohm Jumper Low Temperature Operation 0.25% 0.25% 0.25% 0.25% 0.25% Moisture Resistance 1.0% 0.5%** 0.5%** 0.5%** 0.5%** Shock 0.1% 0.1% 0.1% 0.1% 0.1% Vibration 0.1% 0.1% 0.1% 0.1% 0.1% Load Life (1000 hours standard rating) 0.5%* 0.5%* 0.5%* 0.5%* 0.5%* Terminal Strength 0.1% 0.1% 0.1% 0.1% 0.1% Dielectric Withholding Voltage 0.1% 0.1% 0.1% 0.1% 0.1% Effect Solder Heat 0.1% 0.1% 0.1% 0.1% 0.1% * 1000 hours R for Dual Rating is 1%. ** Resistance Values: 1 ohm to 10 ohm R (2.5% + 0.05 ohm). 1 Megohm to 5.1 Megohm R (1% + 0.05 ohm). Vishay Dale 2300 Riverside Blvd., Norfolk, NE 68701-2242 * Phone (402) 371-0080 * Fax 402-644-4206 * Internet www.vishay.com Major Vishay Brands Dale * Draloric * Foil Resistors * Measurements Group * Roederstein * Sfernice * Sprague * Thin Film * Vitramon MODELS SMA and OMA PART MARKING 2.5% Tolerance Commercial 1, 2, 4, 5 1.0% Tolerance Commercial 1, 2, 3, 4, 5 1. 1st Significant Figure 2. 2nd Significant Figure 3. 3rd Significant Figure 4. Multiplier 5. Tolerance Note: OMA 0204 and OMA 0207 zero ohm type resistors are marked with a single black color band. All band widths and spacing shown are for reference only. % OF RATED POWER DERATING 100 80 + 70C 60 + 165C 40 20 0 50 70 90 110 130 150 170 AMBIENT TEMP. DEG. CENTIGRADE HOW TO ORDER SMA 0207S 100k 1% MODEL SIZE RESISTANCE TOLERANCE 100k = 100,000 1% 2% 5% For Zero Ohm Resistors, OMA 0204 or OMA 0207 is sufficient callout. Manufactured in Germany Vishay Dale 2300 Riverside Blvd., Norfolk, NE 68701-2242 * Phone (402) 371-0080 * Fax 402-644-4206 * Internet www.vishay.com Major Vishay Brands Dale * Draloric * Foil Resistors * Measurements Group * Roederstein * Sfernice * Sprague * Thin Film * Vitramon