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Specifications
Power(Watts):
125mW
Resistance:
200mΩ
Mounting Type:
SMD
Current Rating:
-
Voltage Rating:
-
Type:
Current Sense Resistor
Temperature Coefficient:
±200ppm/℃
Tolerance:
±1%
Mfr. Part #:
73L3R20F
Package:
0805
Key Attributes
Model Number:
73L3R20F
Product Description
CTS 73Lx & 73Ex Series Current Sensing Resistor Flat Terminal Chip
The CTS 73Lx & 73Ex Series Current Sensing Resistors are ceramic packaged devices designed for excellent accuracy in current detection applications. These resistors offer good electrical and thermal characteristics, making them suitable for current detection, current limiting, regulated battery circuits, motor control, power supplies, hard disk drives, inverters/converters, industrial equipment, and infotainment systems.
Product Attributes
- Brand: CTS
- Construction: Thick Film
- Terminal Finish: Matte Tin (e3)
- Packaging: Tape and Reel
- Certifications: RoHS Compliant in Accordance with EU Directive 2011/65/EU - Lead-Free Termination Finish - Exemption 7(c)-I, Electrical and electronic components containing lead [Pb] in glass
Technical Specifications
| Model Type | Rated Wattage (W) @ +70C | Resistance Range (m) | Resistance Tolerance (%) | Temperature Coefficient (ppm/C) | Operating Temperature Range (C) | Working Voltage (max V) | Overload Voltage (max) |
|---|---|---|---|---|---|---|---|
| 73L1 | 0.100 | 200 - 910 | F=1, G=2, J=5 | 100 (F), 200 (G, J) | -55 to +155 | 100 | V=(P*R) |
| 73L2 | 0.100 | 200 - 910 | F=1, G=2, J=5 | 100 (F), 200 (G, J) | -55 to +155 | 100 | V=(P*R) |
| 73L3 | 0.125 | 100 - 910 | F=1, G=2, J=5 | 100 (F), 200 (G, J) | -55 to +155 | 100 | V=(P*R) |
| 73L4 | 0.250 | 100 - 910 | F=1, G=2, J=5 | 100 (F), 200 (G, J) | -55 to +155 | 100 | V=(P*R) |
| 73L5 | 0.500 | 100 - 910 | F=1, G=2, J=5 | 100 (F), 200 (G, J) | -55 to +155 | 100 | V=(P*R) |
| 73L6 | 0.750 | 100 - 910 | F=1, G=2, J=5 | 100 (F), 200 (G, J) | -55 to +155 | 100 | V=(P*R) |
| 73L7 | 1.000 | 100 - 910 | F=1, G=2, J=5 | 100 (F), 200 (G, J) | -55 to +155 | 100 | V=(P*R) |
| 73E3 | 0.250 | 50 - 91 | F=1, J=5 | 100 | -55 to +155 | --- | --- |
| 73E4 | 0.500 | 50 - 91 | F=1, J=5 | 100 | -55 to +155 | --- | --- |
| 73E6 | 1.000 | 50 - 91 | F=1, J=5 | 100 | -55 to +155 | --- | --- |
Environmental Parameters
| Test Description | Maximum Delta R (%) | Conditions |
|---|---|---|
| Thermal Cycle | 5.00 | 5 cycles -55C to +125C |
| Short Time Overload | 2.50 | 2 times rated working voltage for 5 seconds |
| Moisture Resistance | 3.00 | 240 hours; +40C, 90% RH |
| High Temperature Exposure | 3.00 | 1,000 hours @ +155C, no load |
| Load Life | 5.00 | 1,000 hours @ +70C, rated load |
| Resistance to Solder Heat | 3.00 | 10 seconds @ +260C solder |
| Resistance to Solvents | - | Isopropyl alcohol, Freon TMC |
| Solderability | - | RMA Flux, +230C, 5 seconds dip, 95% coverage |
Mechanical Specifications
Package Dimensions [mm]
| Model Type | Package Code Inch [mm] | L | W | t |
|---|---|---|---|---|
| 73L1 | 0402 [1005] | 2.00 0.10 | 0.70 0.10 | 0.35 0.05 |
| 73L2 | 0603 [1608] | 3.00 +0.20 -0.10 | 1.20 +0.15 -0.05 | 0.50 0.05 |
| 73L3 / 73E3 | 0805 [2012] | 4.00 +0.20 -0.10 | 1.65 +0.20 -0.10 | 0.56 0.15 |
| 73L4 / 73E4 | 1206 [3216] | 5.00 +0.10 -0.15 | 2.00 +0.15 -0.05 | 0.56 0.15 |
| 73L5 | 1210 [3225] | 5.00 +0.10 -0.15 | 2.90 +0.15 -0.05 | 0.56 0.15 |
| 73L6 / 73E6 | 2010 [5025] | 6.60 0.10 | 3.00 0.20 | 1.20 0.08 |
| 73L7 | 2512 [6432] | 8.20 0.15 | 3.70 0.15 | 1.90 0.20 |
Recommended Pad Layout [mm]
| Model Type | A | B | C |
|---|---|---|---|
| 73L1 | 0.20 0.10 | 0.25 0.10 | 0.25 0.20 |
| 73L2 | 0.80 +0.20 -0.10 | 0.50 +0.15 -0.05 | 0.25 0.20 |
| 73L3 / 73E3 | 2.00 +0.20 -0.10 | 1.25 +0.20 -0.10 | 0.40 0.20 |
| 73L4 / 73E4 | 3.20 +0.10 -0.15 | 1.60 +0.10 -0.15 | 0.50 0.20 |
| 73L5 | 3.20 +0.10 -0.15 | 2.60 +0.10 -0.15 | 0.50 0.20 |
| 73L6 / 73E6 | 6.30 0.15 | 5.00 0.15 | 0.60 0.25 |
| 73L7 | 6.30 0.15 | 5.00 0.15 | 0.60 0.25 |
Terminal Details
Base Metal: Silver [Ag] or Copper [Cu]
Barrier Plating: Nickel [Ni]
Finish Plating: Matte Tin [Sn]
Packaging Tape and Reel Information
Paper Tape [mm]
| Model Type | t | A | B |
|---|---|---|---|
| 73L1 | 0.50 0.10 | 2.90 0.10 | 1.65 0.20 |
| 73L2 | 0.70 0.10 | 3.60 0.10 | 2.40 0.20 |
| 73L3 / 73E3 | 0.80 0.20 | 4.00 0.10 | 2.40 0.20 |
| 73L4 / 73E4 | 2.00 +0.10 -0.15 | 5.00 0.10 | 4.00 0.20 |
| 73L5 | 0.80 0.20 | 5.00 0.10 | 4.00 0.20 |
| 73L6 / 73E6 | 1.00 0.10 | 6.60 0.10 | 5.40 0.20 |
| 73L7 | 1.00 0.10 | 8.00 0.10 | 6.50 0.20 |
Embossed Tape [mm]
| Model Type | t | A | B |
|---|---|---|---|
| 73L1 | 0.50 0.10 | 2.90 0.10 | 1.65 0.20 |
| 73L2 | 0.70 0.10 | 3.60 0.10 | 2.40 0.20 |
| 73L3 / 73E3 | 0.80 0.20 | 4.00 0.10 | 2.40 0.20 |
| 73L4 / 73E4 | 2.00 +0.10 -0.15 | 5.00 0.10 | 4.00 0.20 |
| 73L5 | 0.80 0.20 | 5.00 0.10 | 4.00 0.20 |
| 73L6 / 73E6 | 1.00 0.10 | 6.60 0.10 | 5.40 0.20 |
| 73L7 | 1.00 0.10 | 8.00 0.10 | 6.50 0.20 |
Reel [mm]
| Model Type | M | W | A | B | C | Quantity Per Reel | |
|---|---|---|---|---|---|---|---|
| 73L1 | 13.0 1.4 | 13.0 1.4 | 60 | 21.9 0.6 | 13.5 0.6 | 2.5 0.6 | 4,000 |
| 73L2 | 13.0 1.4 | 13.0 1.4 | 60 | 21.9 0.6 | 13.5 0.6 | 2.5 0.6 | 4,000 |
| 73L3 / 73E3 | 13.0 1.4 | 17.0 1.4 | 60 | 21.9 0.6 | 13.5 0.6 | 2.5 0.6 | 5,000 |
| 73L4 / 73E4 | 13.0 1.4 | 17.0 1.4 | 60 | 21.9 0.6 | 13.5 0.6 | 2.5 0.6 | 5,000 |
| 73L5 | 13.0 1.4 | 13.0 1.4 | 60 | 21.9 0.6 | 13.5 0.6 | 2.5 0.6 | 5,000 |
| 73L6 / 73E6 | 13.0 1.4 | 13.0 1.4 | 60 | 21.9 0.6 | 13.5 0.6 | 2.5 0.6 | 5,000 |
| 73L7 | 13.0 1.4 | 13.0 1.4 | 60 | 21.9 0.6 | 13.5 0.6 | 2.5 0.6 | 10,000 |
2411041627_CTS-73L3R20F_C2110795.pdf
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