Resistor Wirewound Precision
RWP Series
Ultra-tight tolerance to 0.005%, low TCR to ±2ppm/°C
This specific product line is not for new designs.
A precision wirewound resistor is designed to absorb high energy impulses. Stable materials used in the wiring of a wirewound resistor leads to high accuracy, superior stability, and low temperature coefficient of resistance (TCR).
KEY FEATURES:
- Low TCR ±2ppm/°C
- Temperature Coefficients of ± 2ppm/°C
- Temperature Range -55°C to +145°C
- Resistance to 6 Mega-Ohms
- Resistance Tolerance starting at ± 0.005%
- Long Term Stability / 100ppm/year
- High TCR Available - Platinum & Balco Wire
- Matched Resistance Sets to ± 0.001 and
± 0.5 ppm/°C - 100% Acceptance Tested
- RoHS Compliant
- Options available: Wide TCR Range,
High Stability and Fast Rise Time
APPLICATIONS:
- Smart Grid Metering
- Power Inverters
- Engine Sensors
- Temperature Sensors
Johanson Dielectrics precision wirewound resistors (RWP series) are designed to meet the demanding requirements for high energy impulses. Our wirewound resistors achieve tight tolerances starting at ±0.005%, and are available as radial and axial resistors for thru-hole mounting or soldering of wires on the leads.
We design your radial and axial resistors to address the majority of industry standard impulse requirements through mass and wire geometry (length and diameter) design.
Contact us for your unique impulse requirements. Our applications engineers will assist in finding the right wirewound resistor for your application.
We design your radial and axial resistors to address the majority of industry standard impulse requirements through mass and wire geometry (length and diameter) design.
Contact us for your unique impulse requirements. Our applications engineers will assist in finding the right wirewound resistor for your application.
| PRODUCT SERIES (RWP) | RESISTANCE(Ω) | POWER RATING(W) | TOLERANCE 1 | TEMPERATURE COEFFICIENT | TEMPERATURE RANGE 1 |
|---|---|---|---|---|---|
| Radial | Up to 1M | 0.125 to 0.300 | ± 0.005% to 1% |
|
- 55°C to + 145°C |
| Axial | Up to 6M | 0.06 to 2.00 |
1 See Power Derating Curve
Radial
| Package Code | B01 | B03 | |
|---|---|---|---|
| Max Resistance (Ω) | 500k | 500k | |
| Max Working Voltage (V) | 150 | 150 | |
| Power Rating (W) | 0.125 | 0.300 | |
Dimensions Inches [mm] |
Width ±0.010” [±0.25mm] |
0.140 [3.56] |
0.102 [2.59] |
| Height ±0.025” [±0.64mm] |
0.250 [6.35] |
0.320 [8.13] |
|
| Length ±0.010” [±0.25mm] |
0.270 [6.86] |
0.300 [7.62] |
|
| Lead Diameter 1 ±0.002” [±0.05mm] |
0.032 [0.81] |
0.025 [0.64] |
|
| Lead Spacing ±0.015” [±0.4mm] |
0.125 [3.18] |
0.150 [3.81] |
|
* Moisture Sensitivity Level: MSL - 1
Radial Dimensions
1 Lead Length 1.00” [25.40mm] Min
Axial Dimensions
2 Lead Length 1.50” [38.10mm] Min
| Package Code | A01 | A02 | A03 | A04 | A05 | A06 | A07 | A08 | A09 | A10 | A11 | A12 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Max Resistance (Ω) | 75k | 150k | 150k | 250k | 250k | 400k | 500k | 500k | 750k | 750k | 1M | 1M | |
| Max Working Voltage (V) | 75 | 100 | 100 | 100 | 100 | 150 | 150 | 100 | 200 | 200 | 200 | 200 | |
| Power Rating (W) | 0.06 | 0.08 | 0.08 | 0.10 | 0.10 | 0.12 | 0.15 | 0.15 | 0.175 | 0.20 | 0.20 | 0.20 | |
Dimensions Inches [mm] |
|||||||||||||
| Length ±0.010” [±0.25mm] |
0.210 [5.33] |
0.260 [6.60] |
0.260 [6.60] |
0.375 [9.53] |
0.312 [7.92] |
0.250 [6.35] |
0.295 [7.49] |
0.250 [6.35] |
0.375 [9.53] |
0.450 [11.43] |
0.375 [9.53] |
0.375 [9.53] |
|
| Diameter ±0.002” [±0.05mm] |
0.100 [2.54] |
0.125 [3.18] |
0.125 [3.18] |
0.125 [3.18] |
0.156 [3.96] |
0.187 [4.75] |
0.187 [4.75] |
0.250 [6.35] |
0.187 [4.75] |
0.187 [4.75] |
0.250 [6.35] |
0.250 [6.35] |
|
| Lead Spacing ±0.015” [±0.4mm] |
0.020 [0.51] |
0.020 [0.51] |
0.025 [0.64] |
0.020 [0.51] |
0.020 [0.51] |
0.025 [0.64] |
0.025 [0.64] |
0.025 [0.64] |
0.025 [0.64] |
0.025 [0.64] |
0.032 [0.81] |
0.025 [0.64] |
|
| Package Code | A13 | A14 | A15 | A16 | A17 | A18 | A19 | A20 | A21 | A22 | A23 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Max Resistance (Ω) | 1M | 1.2M | 1.2M | 2.5M | 2.5M | 3.8M | 3.8M | 6M | 6M | 6M | 6M | |
| Max Working Voltage (V) | 250 | 300 | 300 | 400 | 400 | 300 | 400 | 600 | 800 | 900 | 1000 | |
| Power Rating (W) | 0.25 | 0.25 | 0.25 | 0.33 | 0.33 | 0.40 | 0.50 | 0.75 | 1.00 | 1.50 | 2.00 | |
Dimensions Inches [mm] |
||||||||||||
| Length ±0.010” [±0.25mm] |
0.465 [11.81] |
0.500 [12.70] |
0.500 [12.70] |
0.750 [19.05] |
0.750 [19.05] |
0.500 [12.70] |
0.750 [19.05] |
1.000 [25.40] |
1.000 [25.40] |
1.500 [38.10] |
2.000 [50.80] |
|
| Diameter ±0.002” [±0.05mm] |
0.210 [5.33] |
0.250 [6.35] |
0.250 [6.35] |
0.250 [6.35] |
0.250 [6.35] |
0.375 [9.53] |
0.375 [9.53] |
0.375 [9.53] |
0.500 [12.70] |
0.500 [12.70] |
0.500 [12.70] |
|
| Lead Spacing ±0.015” [±0.4mm] |
0.025 [0.64] |
0.032 [0.81] |
0.025 [0.64] |
0.032 [0.81] |
0.025 [0.64] |
0.032 [0.81] |
0.032 [0.81] |
0.032 [0.81] |
0.032 [0.81] |
0.032 [0.81] |
0.032 [0.81] |
|
* Moisture Sensitivity Level: MSL - 1
Available Options (Consult Factory)
- Wide TCR Range: Low and High TC configurations from -20ppm/ºC to +6000ppm/ºC. Down to 1ppm/ºC available.
- High Stability: High stability version with maximum resistance change of ± 20ppm/year under normal conditions.
- Fast Rise Time: Low reactance design for fast rise time and extended frequency response.
- Special Testing Requirements
- Special Pulse Requirements
How to Order
