Stackpole Electonics Supplier Page

CSS/CSSH Series


Stackpole Electronics’ Ultra Precision Current Sensing Chip Resistors


CSS/CSSH SeriesStackpole Electronics' CSS/CSSH series of ultra-stable metal element current sense resistors are available in chip sizes from 1206 to 2728 and power ratings from 0.5W to 4W. The all-metal construction eliminates problems with part or solder-joint cracking, which are often a concern for larger chip sizes. This series is capable of resistance tolerances down to 0.5% and TCRs down to 15 PPM. This ensures precise power management over a wide range of ambient temperatures.
  • Overview
  • Features
  • Specifications
  • Buy Now

Overview

The CSS/CSSH series is designed for high current, high power, high temperature, and high precision current sensing requirements. The metal plate element and unique trimming process yields a highly stable device at high currents and is capable of operation at full rated power up to 100°C. The CSS/CSSH series allows operation up to temperatures of 275°C. In addition, market drivers for 1W and higher current sense resistors continue to push for lower resistance values. The CSS/CSSH series is available in resistance values down to 0.25mΩ.

Features

  • High power metal alloy current sense resistor
  • Very low inductance (0.5nH to 5nH)
  • High temperature performance: up to 275°C
  • Excellent frequency response
  • Low thermal EMF (<1μV/C)
  • Proprietary processing technique produces extremely low resistance values
  • Lead-free
RoHS Compliant

Specifications

Electrical
Type/Code Package Type Power Rating (Watts) @100°C Resistance Temperature Coefficient Ohmic Range and Tolerance
0.5% 1%, 5%
CSS 1206 1206 1W 50± ppm°C
25± ppm°C
15± ppm°C
-
0.007Ω - 0.015Ω
0.0151Ω - 0.050Ω
0.001Ω - 0.004Ω
0.0041Ω - 0.0150Ω
0.0151Ω - 0.050Ω
 
CSS 2010 2010 1W 50± ppm°C
25± ppm°C
15± ppm°C
-
0.003Ω - 0.0069Ω
0.0151Ω - 0.050Ω
0.007Ω - 0.1Ω
0.0031Ω - 0.0069Ω
0.007Ω - 0.1Ω
CSS 2512 2512 2W 50± ppm°C
25± ppm°C
15± ppm°C
-
-
0.007Ω - 0.075Ω
0.0005Ω - 0.003Ω
0.0031Ω - 0.0069Ω
0.007Ω - 0.075Ω
 
CSSH 2512 2512 3W 50± ppm°C
25± ppm°C
0.007Ω - 0.01Ω 0.0005Ω - 0.002Ω
0.0021Ω - 0.01Ω
 
CSS 2725 2725 4W 50± ppm°C
25± ppm°C
-
-
0.00025Ω - 0.0009Ω
0.001Ω - 0.003
 
CSS 2728 2728 3W 25± ppm°C
15± ppm°C
0.004Ω - 0.007Ω
0.0071Ω - 0.1Ω
0.004Ω - 0.007Ω
0.0071Ω - 0.1Ω
 
CSSH 2728 2728 4W 25± ppm°C
15± ppm°C
0.004Ω - 0.007Ω
0.008Ω - 0.05Ω
0.004Ω - 0.007Ω
0.008Ω - 0.05Ω

Mechanical
Type/Code L
Body Length
W
Body Width
H
Body Height
a
Top Termination
b
Bottom Termination
Units
CSS 1206 3.048±0.254 1.575±0.254 0.645±0.254 0.508±0.254 0.508±0.254 mm
CSS 2010 (≤3mΩ) 5.080±0.254 2.540±0.254 0.787±0.254 1.295±0.254 1.295±0.254 mm
CSS 2010 (>3mΩ) 5.080±0.254 2.540±0.254 0.645±0.254 0.787±0.254 0.787±0.254 mm
 
CSS2512 (≤4mΩ) 6.250±0.254 3.300±0.254 0.787±0.254 1.880±0.254 1.880±0.254 mm
 
CSS 2512 (≥5mΩ) 6.250±0.254 3.300±0.254 0.645±0.254 1.120±0.254 1.120±0.254 mm
 
CSSH 2512 (0.5mΩ) 6.250±0.254 3.300±0.254 0.787±0.254 1.880±0.254 1.880±0.254 mm
 
CSSH 2512 (0.6-2.9mΩ) 6.250±0.254 3.300±0.254 0.787±0.254 1.180±0.254 1.180±0.254 mm
 
CSSH 2512 (3-4mΩ) 6.250±0.254 3.300±0.254 0.787±0.254 1.676±0.254 1.676±0.254 mm
 
CSSH 2512 (4.1-10mΩ) 6.250±0.254 3.300±0.254 0.787±0.254 1.180±0.254 1.180±0.254 mm
 
CSS 2725 (0.25-0.50mΩ) 6.800±0.254 6.700±0.254 0.991±0.254 2.160±0.254 2.160±0.254 mm
 
CSS 2725 (1mΩ) 6.800±0.254 6.700±0.254 1.092±0.254 2.160±0.254 2.160±0.254 mm
CSS 2725 (1.5mΩ) 6.800±0.254 6.700±0.254 0.991±0.254 2.160±0.254 2.160±0.254 mm
CSS 2725 (2mΩ) 6.800±0.254 6.700±0.254 0.889±0.254 1.800±0.254 1.800±0.254 mm
CSS 2725 (2.5mΩ) 6.800±0.254 6.700±0.254 0.889±0.254 1.650±0.254 1.650±0.254 mm
 
CSS 2725 (3mΩ) 6.800±0.254 6.700±0.254 0.889±0.254 1.300±0.254 1.300±0.254 mm
 
CSS 2728 6.706±0.254 7.188±0.254 0.991±0.254 1.143±0.254 1.143±0.254 mm
 
CSSH 2728 6.706±0.254 7.188±0.254 0.991±0.254 1.143±0.254 1.143±0.254 mm
 

HPC Series Mechanical Specifications

Buy Now

Digi-Key Part Number SEI Part Number Description Resistance
in Ohms
Power
Watts
CSS2725FTL250CT-ND CSS2725FTL250 RES 0.00025 OHM 4W 1% 2725 SMD 0.00025 4W
CSS2725FTL500CT-ND CSS2725FTL500 RES 0.0005 OHM 4W 1% 2725 SMD 0.0005 4W
CSS2725FT1L00CT-ND CSS2725FT1L00 RES 0.001 OHM 4W 1% 2725 SMD 0.001 4W
CSS2725FT2L00CT-ND CSS2725FT2L00 RES 0.002 OHM 4W 1% 2725 SMD 0.002 4W
CSS2725FT3L00CT-ND CSS2725FT3L00 RES 0.003 OHM 4W 1% 2725 SMD 0.003 4W
CSSH2728FT4L00CT-ND CSSH2728FT4L00 RES 0.004 OHM 4W 1% 2728 SMD 0.004 4W
CSSH2728FT5L00CT-ND CSSH2728FT5L00 RES 0.005 OHM 4W 1% 2728 SMD 0.005 4W
CSSH2728FT10L0CT-ND CSSH2728FT10L0 RES 0.01 OHM 4W 1% 2728 SMD 0.01 4W
CSSH2728FT20L0CT-ND CSSH2728FT20L0 RES 0.02 OHM 4W 1% 2728 SMD 0.02 4W
CSSH2728FT25L0CT-ND CSSH2728FT25L0 RES 0.025 OHM 4W 1% 2728 SMD 0.025 4W
CSSH2728FT30L0CT-ND CSSH2728FT30L0 RES 0.03 OHM 4W 1% 2728 SMD 0.03 4W
CSSH2728FT50L0CT-ND CSSH2728FT50L0 RES 0.05 OHM 4W 1% 2728 SMD 0.05 4W
CSS/CSSH Datasheet