CH Vishay Sfernice Thin Film Microwave Resistors FEATURES * Small size, down to 20 by 16 mils 0402 (P) * Edged trimmed block resistors * Pure alumina substrate (99.5%) * Various terminations: 02016 (P) * Pre-tinned over Nickel Barrier (wraparound or flip chip) for solder reflow * Gold pad for wire (or ribbon) bonding * Ohmic range: 10R to 500R * Small internal reactance (LC down to 1 x 10- 24) * Tolerance 1%, 5%, 10%, 0402 (B) * TCR: 100ppm/C Those miniaturized components are designed in such a way that their internal reactance is very small. When correctly mounted and utilized, they function as almost pure resistors on a very large range of frequency, up to 20GHz. DIMENSIONS in millimeters [inches] DIMENSIONS CASE SIZE MAX. TOL. + 0.1 (0.004) MIN. TOL. - 0.1 (0.004) 02016 0402 0505 0603 0705/0805 1005 1206 A MAX. TOL. + 0.1 (0.004) MIN. TOL. - 0.1 (0.004) 0.5 (0.02) 1.00 (0.040) 1.27 (0.050) 1.52 (0.060) 1.91 (0.075) 2.54 (0.100) 3.00 (0.126) B MAX. TOL. + 0.1 (0.004) MIN. TOL. - 0.1 (0.004) 0.4 (0.016) 0.6 (0.023) 1.27 (0.050) 0.75 (0.030) 1.27 (0.050) 1.27 (0.050) 1.60 (0.063) C POWER ELEMENT VOLTAGE V LIMITING ADJUSTABLE D/E RATING Pn mW 0.38 (0.015) 0.38 (0.015) 0.38 (0.015) 0.38 (0.015) 0.38 (0.015) 0.38 (0.015) 0.38 (0.015) 0.15 (0.006) 0.38 (0.015) 0.38 (0.015) 0.38 (0.015) 0.38 (0.015) 0.38 (0.015) 0.38 (0.015) 30 50 125 125 200 250 330 30 37 50 50 50 75 75 ORDERING INFORMATION CH... 0402 50R 1% N SIZE 02016 0402 0505 0603 0805 1005 1206 OHMIC VALUE 10R to 500R TOLERANCE 1% 5% TERMINATION F (Flip Chip): SnAg over nickel barrier N: (W/A): SnAg over nickel barrier P: Gold Bonding Pads 10% As these products are application dedicated, a Special CH number will be issued for each product after evaluation. www.vishay.com 2 For technical questions, contact sfer@vishay.com Document Number: 53014 Revision 08-Mar-05 CH Thin Film Microwave Resistors Vishay Sfernice TYPICAL HIGH FREQUENCY PERFORMANCE ELECTRICAL MODEL C Lc R L Lc Cg Cg The complex impedance of the chip resistor is given by the following equations: Z =R 1 + j XL/R 1 + j R/XC = Arc tg [Z]= R with XL = 2fL: Reactance of the internal inductance XL (XC + XL) + R2 with Xc= I/2fC: Reactance of the R XC internal capacitance 1 + (XL/R)2 1 + (R/XC)2 1/2 f = frequency C: Internal shunt capacitance L: Internal inductance R: Resistance Lc: External connection inductance Cg: External capacitance to ground The resistor is purely resistive when R = (L/C)1/2 = ZO. The smaller the LC product the greater the frequency range over which the resistor looks approximately resistive. This can be seen on the graphs relevant to 02016 (R =100, LC = 1 x 10- 24), 0402 (R = 129, LC = 15 x 10- 24) and 1206 (R = 200, LC = 100 x 10- 24). Note: The external reactance (Lc and Cg) depends on the PCB material, the layout and assembly technology. It does affect the HF performance and needs to be estimated. The external reactance can be utilized to compensate the internal one. INTERNAL IMPEDANCE CURVE FOR 02016 SIZE (R017 BARE CHIPS) 2 1.8 10 C = 0.01pF L = 0.1nH 1.6 25 IZI/R 1.4 1.2 50 75 100 150 200 250 1 0.8 0.6 500 0.4 1000 0.2 0 0.1 1 10 100 f (GHz) Document Number: 53014 Revision 08-Mar-05 For technical questions, contact sfer@vishay.com www.vishay.com 3 CH Vishay Sfernice Thin Film Microwave Resistors INTERNAL IMPEDANCE CURVE FOR 0402 SIZE (R017 W/A) 2 10 1.8 50 25 C = 0.03pF L = 0.5nH 1.6 1.4 75 100 1.2 129 IZI/R 1 150 0.8 200 0.6 250 0.4 500 0.2 1000 0 0.1 1 f (GHz) 100 10 INTERNAL IMPEDANCE CURVE FOR 1206 SIZE (R017 W/A) 2 10 1.8 1.6 75 25 C = 0.05pF L = 2nH 100 150 1.4 IZI/R 1.2 1 200 0.8 250 0.6 0.4 0.2 0 0.1 500 1000 1 10 100 f (GHz) www.vishay.com 4 For technical questions, contact sfer@vishay.com Document Number: 53014 Revision 08-Mar-05