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| VHD200, VHD144 Vishay Foil Resistors Bulk Metal(R) Foil Hermetically sealed, Small Package, Voltage Dividers with TCR Tracking of 0.1 ppm/C and Tolerance Match down to 0.001 % FEATURES * Temperature coefficient of resistance (TCR): * * Any value at any ratio available within resistance range Vishay Models VHD200 and VHD144 are hermetic versions of the molded divider 300144. The difference between them is that the VHD144 has the full power rating of the 300144 while the VHD200 has a reduced power rating in exchange for a full spectrum of values without the time delay for new artwork (for values not yet tooled) and without NRE charges. Further, the VHD200 is oil filled, providing additional moisture protection and allowing considerable improvement in ratio match and TCR tracking. The value of the hermetic enclosure over the molded part is in the long term performance. Moisture and oxygen both pass through plastic and both contribute to long term degradation of resistive elements. Divider ratios of 1:1 are not as likely to lose ratio with time but as the ratios become greater, the imbalance of power has more effect on the ratio stability and the hermetic enclosure becomes of paramount importance. Our Application Engineering Department is available to advise and make recommendations. For non-standard technical requirements and special applications. Please contact us. * * * * * * * * * * * * * Absolute: 2 ppm/C typical Pb-free (- 55 C to + 125 C, 25 C ref.) Available Tracking: 0.1 ppm/C typical RoHS* COMPLIANT Tolerance: absolute to 0.005 % match to 0.001 % Power rating: VHD144 0.2 W at 70 C (see table 1) VHD200 0.1 W at 70 C (see table 1) Ratio stability: < 0.001 % (10 ppm) 0.2 W at 70 C for 2000 h Electrostatic discharge (ESD) above 25 000 V Non inductive, non capacitive design Rise time: 1 ns without ringing Current noise: < - 40 dB Thermal EMF: 0.05 V/C typical Voltage coefficient: < 0.1 ppm/V Non inductive: 0.08 H Non hot spot design Terminal finishes available: lead (Pb)-free tin/lead alloy Any value available within resistance range (e.g. 1K234) Prototype samples available from 48 h. For more information, please contact foil@vishay.com For better performances, please contact us R2 R1 + Vin Vout VHD200, VHD144 TABLE 1 - VHD200 AND VHD144 SPECIFICATIONS VISHAY MODEL RESISTANCE RATIO AVAILABLE1) () POWER RATING3), 6) STANDARD RESISTANCE TOLERANCE ABSOLUTE AVAILABLE TO 0.005 % SHELF TCR LIFE TRACKING STABILITY MATCH AVAILABLE TO (ppm/yr) AVAILABLE TO 0.001 % 0.1 ppm/C < 0.5 ppm/C for like values < 1 ppm/C standard R2 P2 = ------------------ P R1 + R2 5 VHD2002) Any value from 100 to 20K per side 0.1 W at + 25 C (for the entire resistive element R1 + R2) divided proportionally between the two elements (over 10K).4) 0.2 W at + 70 C (for the entire resistive element R1 + R2) divided proportionally between the two elements. VHD1445) 0.005 % 0.005 % 5 Notes 1. For resistance ratios outside the range, contact Vishay's Applications Engineering Department. 2. The VHD200 is available in any required ratio between the resistance values of 100 and 20 k, such that R1 can be any value between 100 and 20 k and R2 can also be any value between 100 and 20 k. 3. Power is proportional to the divider ratio. Example: In a VHD144 (1K/10K dual), the power rating would be 18 mW on the 1K and 182 mW on the 10K, for a total of 200 mW on R1 + R2. R1 P1 = ------------------ P R1 + R2 4. For power rating of values below 10K, contact the applications engineering department. 5. Any value from 100 to 20 k inclusive is available with some derating of power. 6. Maximum voltage is 200 V. * Pb containing terminations are not RoHS compliant, exemptions may apply Document Number: 63036 Revision: 13-Nov-07 For any questions, contact: foil@vishay.com www.vishay.com 1 VHD200, VHD144 Vishay Foil Resistors Bulk Metal(R) Foil Hermetically sealed, Small Package, Voltage Dividers with TCR Tracking of 0.1 ppm/C and Tolerance Match down to 0.001 % FIGURE 1 - TYPICAL TCR CURVE + 150 + 100 FIGURE 2 - TRIMMING TO VALUES R + 50 0 - 50 R (ppm) Interloop Capacitance Reduction in Series Current Path Before Trimming Current Path After Trimming Trimming Process Removes this Material from Shorting Strip Area Changing Current Path and Increasing Resistance - 100 - 150 - 200 - 50 - 55 - 25 0 + 20 + 50 + 75 + 100 + 125 2 ppm/C (+ 25 C Reference) Mutual Inductance Reduction due to Change in Current Direction Ambient Temperature (C) Note: Foil shown in black, etched spaces in white (For more details, see table 1) FIGURE 3 - VHD200 AND VHD144 STANDARD PRINTING AND DIMENSIONS in inches (millimeters) Standard Printing and Dimensions 0.398 (10.11) Date Code Model No . 0.095 (2.41) Match Tolerance 5K0000 0.01 % 10K000 VISHAY 0746 VHD200 0.430 (10.92) Schematic2) R1 R2 1 0.047 (1.19) 0.75 (19.05) 1) Low Resistance Value Indicator 1 2 3 0.435 (11.05) 0.370 (9.40) 0.185 (4.70) 0.146 (3.71) 1 2 3 0.1 (2.54) Notes 1. Lead wires: #22 AWG solder coated copper, 0.75" minimum length. 2. Each resistor contains 1 chip consisting of two resistive elements. Tol: 0.020". FIGURE 2 - POWER DERATING CURVE VHD144 - 55 C 100 Percent of Rated Power (%) + 70 Percent of Rated Power (%) - 55 C 100 VHD200 + 25 + 125 75 75 50 50 25 25 0 - 50 0 + 50 + 100 + 150 0 - 50 0 + 50 + 100 + 130 Ambient Temperature (C) Ambient Temperature (C) www.vishay.com 2 For any questions, contact: foil@vishay.com Document Number: 63036 Revision: 13-Nov-07 VHD200, VHD144 Bulk Metal(R) Foil Hermetically sealed, Small Package, Vishay Foil Resistors Voltage Dividers with TCR Tracking of 0.1 ppm/C and Tolerance Match down to 0.001 % TABLE 2 - GLOBAL PART NUMBER INFORMATION NEW GLOBAL PART NUMBER: Y0076V0058QT9L (preferred part number format) DENOTES PRECISION Y RESISTANCE VALUE CODE VCODE TOLERANCE MATCH S = 0.001 % V = 0.005 % T = 0.01 % Q = 0.02 % A = 0.05 % B = 0.1 % D = 0.5 % F = 1.0 % AER* 0 = standard 9 = lead (Pb)-free 1 - 999 = custom Y 0 0 7 6 V 0 0 5 8 Q T 9 L PRODUCT CODE 0076 = VHD144 5076 = VHD200 ABSOLUTE TOLERANCE S= V= T= Q= A= B= D= F= 0.001 % 0.005 % 0.01 % 0.02 % 0.05 % 0.1 % 0.5 % 1.0 % PACKAGING L = bulk pack FOR EXAMPLE: ABOVE GLOBAL ORDER Y0076 V0058 Q T 9 L: TYPE: VHD144 VALUE: 2K/20K ABSOLUTE TOLERANCE: 0.02 % TOLERANCE MATCH: 0.01 % TERMINATION: lead (Pb)-free PACKAGING: bulk pack HISTORICAL PART NUMBER: VHD144T 2K/20K TCR2 Q T B (will continue to be used) VHD144 MODEL VHD144 VHD200 T TERMINATION T = lead (Pb)-free None = tin/lead alloy 2K/20K OHMIC VALUE R1 = 2.0 k R2 = 20.0 k TCR2 TCR Characteristic Q ABSOLUTE TOLERANCE V= T= Q= A= B= D= F= 0.005 % 0.01 % 0.02 % 0.05 % 0.1 % 0.5 % 1.0 % T TOLERANCE MATCH S = 0.001 % V = 0.005 % T = 0.01 % Q = 0.02 % A = 0.05 % B = 0.1 % D = 0.5 % F = 1.0 % B PACKAGING B = bulk pack Note * For non-standard requests, please contact application engineering. Document Number: 63036 Revision: 13-Nov-07 For any questions, contact: foil@vishay.com www.vishay.com 3 VHD200, VHD144 Vishay Foil Resistors Bulk Metal(R) Foil Hermetically sealed, Small Package, Voltage Dividers with TCR Tracking of 0.1 ppm/C and Tolerance Match down to 0.001 % R2 20K 10K 2K 9K7 20K 15K 20K 10K 8K323 2K 10K 1K 16K 20K 7K 7K7 10K VCODE V0002 V0026 V0156 V0158 V0058 V0030 V0029 V0103 V0059 V0103 V0032 V0121 V0004 V0022 V0162 V0091 V0061 R1 5K 3K 3K 2K7 2K 2K 2K 2K 2K 1K5 1K 1K 1K 511R 500R 500R 300R TABLE 3 - VHD144 AND VHD200 POPULAR RATIOS (other values available upon request) VCODE V0009 V0010 V0100 V0055 V0223 V0097 V0094 V0001 V0042 V0006 V0226 V0003 V0013 V0107 V0014 V0159 V0005 R1 20K 20K 20K 19K4 17K5 15K 10K 10K 10K 10K 9K 9K 8K 6K 6K 5K5 5K R2 5K 19K2 6K 10K 20K 18K 4K 3K 2K 3K 16K 2K 1K 16K2 15K 500R 300R www.vishay.com 4 For any questions, contact: foil@vishay.com Document Number: 63036 Revision: 13-Nov-07 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 |
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