Untitled Document
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).
Wire wound resistor, Wirewound resistor, Axial resistors, Low temperature coefficient of resistance, Low tcr resistor, Ultra high precision resistor

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.

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%
  • >100 Ω : ± 10ppm/°C
  • 10 Ω to 100 Ω : ± 20ppm/°C
  • <10 Ω : ± 30ppm/°C
- 55°C to + 145°C
Axial Up to 6M 0.06 to 2.00

1 See Power Derating Curve

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

Radial Dimensions diagram 1 Lead Length 1.00” [25.40mm] Min

Axial Dimensions

Axial Dimensions diagram 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

RWP Series Part Number Breakdown
JDI's Mini-Switch Mode® ceramic capacitors combine the advantages of high capacitance found in tantalum capacitors with very low ESR performance of ceramic capacitors. The "J" and "L" lead configurations replace 1825 and 2225 SMT chips to provide stress relief and prevent cracking due to thermal cycling or mechanical board flexing. Another plus of the J-lead style is that this configuration allows use of the same solder lands as the SMT chips. See the Switch-Mode section for larger values. See also the Technical Notes on soldering and handling and suggested solder lands.
Mini-Switchmode Capacitors

Key Features:

  • Stress Relief from Cracking due to Thermal Cycling, TCE Mismatches or Board Flexing
  • 25 to 500 VDC Ratings
  • Custom Sizes, Voltages, and Values Available
  • Ideal for DC-DC Power Supply Applications

General Specifications:

  • Stress Relief from Cracking due to Thermal Cycling, TCE Mismatches or Board Flexing
  • 25 to 500 VDC Ratings
  • Custom Sizes, Voltages, and Values Available
  • Ideal for DC-DC Power Supply Applications

Capacitance Values

Size CodeEIA Chip SizeNP0 Max Capacitance (μF)X7R Max Capacitance (μF)
25V50V100V200V500V25V50V100V200V500V
P0918250.0560.0470.0390.0270.0181.51.20.750.560.27
P2918250.110.0940.0780.0540.0363.02.41.51.10.54
P3918250.160.140.110.0810.0544.53.62.21.60.81
P4918250.220.180.150.100.0076.04.83.02.21.0
P0822250.0680.0560.0470.0330.0272.72.21.51.20.39
P2822250.130.110.0940.0660.0545.44.43.02.40.78
P3822250.200.160.140.0100.0818.16.64.53.61.1
P4822250.270.220.180.130.10108.86.04.81.5

Mechanical Specifications

Dimensions Applicable to specific sizes:P08 and P09 Mini-SwitchmodeP28 and P29 Mini-SwitchmodeP38 and P39 Mini-SwitchmodeP48 and P49  Mini-Switchmode
 in.mm
h ± .010.0701.78
c Typ..1002.54
p ± .015.0651.65
Dimensions Applicable to specific sizes:P08P09P28P29P38P39P48P49
in.mmin.mmin.mmin.mmin.mmin.mmin.mmin.mm
L max.2807.110.246.10.287.110.246.10.287.110.246.10.287.110.246.1
W max.2706.860.276.860.276.860.276.860.276.860.276.860.276.860.276.86
T max0.952.410.0952.410.194.830.194.830.2857.240.2857.240.389.650.389.65
Note: J-Lead and L-Lead options are available on all sizes above

Electrical Specifications

 X7RNP0
TEMPERATURE COEFFICIENT:-55 to 125°0 ± 15%0 ± 30ppm/°C
DISSIPATION FACTOR:1kHz, 25°C2.5% max0.1% max
AGING RATE:% per decade hour2.5%none
INSULATION RESISTANCE: 1000⟨F or 100G⟨, whichever is less at rated WVDC, 25°C
DIELECTRIC STRENGTH:For 500V Ratings          750VDC, 25°C, 50mA max
For 200V Ratings          2xWVDC, 25°C, 50mA max
For 25-100V Ratings     2.5xWVDC, 25°C, 50mA max
CAP & D.F. MEASUREMENTS:1kHz ±50Hz; 1.0±0.2 VRMS, 25°C
NP0 graph for Mini switchmode capacitor
X7R graph for Mini switchmode capacitor
How to Order

Valid options are shown except for Capacitance
A typical PN is M2EH500W395K1J1001U. This part number breaks down as follows:

Capacitors SMPS P-Series PME - 2 chips, 2225, X7R, 50.0V, 3.90µF±10%, "J" Leads, 13" Reel Embossed Tape


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High Temperature Stacked Capacitors for temperatures up to 200°C and feature a Rugged Stack with Hi-Temp Lead-Attachment. These Hi Temp Capacitors have MLC designs for utilizing military grade ceramics.
High Temperature Stacked Capacitors

MLC General Specifications:

  • Rated Voltage: 50VDC to 200VDC
  • Dielectrics Type: NP0, X7R
  • Capacitance Range: .01 μF - 47 μF

High Temperature Capacitor Key Features:

  • For Use at Temperatures Up to 200°C
  • Rated Working Voltages from 50V to 2KV
  • Rugged Stack with Hi-Temp Lead-Attachment
  • MLC Designs Utilizing Military Grade Ceramics
  • Custom Sizes, Values, and Voltages Available

For use in High Temp Applications, such as:

  • Oil Well Logging (Downhole)
  • Geophysical Probes
  • Jet Engine Controls

Capacitance and Voltage Selection

Size Code NP0 Max Capacitance (μF) X7R Max Capacitance (μF)
  50V 100V 200V 50V 100V 200V
T05 0.56 .0.47 0.22 1.20 0.68 0.33
T25 0.10 0.82 0.39 2.20 1.20 0.68
T35 0.15 0.12 0.68 3.30 1.80 1.00
T45 0.22 0.18 0.82 4.70 2.70 1.20
T55 0.27 0.22 0.10 5.60 3.30 1.50
T04 0.12 0.10 0.10 2.70 1.50 0.82
T24 0.22 0.18 0.18 4.70 2.70 1.50
T34 0.33 0.27 0.27 8.20 3.90 2.20
T44 0.47 0.39 0.39 12.0 5.60 3.30
T54 0.56 0.56 0.56 15.0 8.20 3.90
T03 0.47 0.39 0.22 10.0 5.60 2.70
T23 0.82 0.68 0.39 18.0 10.0 4.70
T33 1.20 1.00 0.68 27.0 15.0 8.20
T43 1.80 1.50 0.82 39.0 22.0 10.0
T53 2.20 1.80 1.00 47.0 27.0 12.0

Mechanical

High Temperature Stacked Capacitors Mechanical Schematic
Case Size A B C D D E F Leads per side
(max") (max") ±0.25 (min") (max") (max") (min")
T05 .120 .185 .250 .224 .275 .300 .080 3
T25 .240 .305
T35 .360 .425
T45 .480 .545
T55 .650 .715
T04 .120 .185 .400 .350 .425 .440 .180 4
T24 .240 .305
T34 .360 .425
T44 .480 .545
T54 .650 .715
T03 .120 .185 .450 .950 1.075 .500 .180 10
T23 .240 .305
T33 .360 .425
T43 .480 .545
T53 .650 .715

Dielectric

 NP0 DielectricX7R Dielectric
Temperature Coefficient:0 ± 30ppm/°C, -55 to 125°C0 ±15% (-55 to 125°C)
Cap Drop at 200°C:minus 0.5% maxminus 45% max
Dissipation Factor:.001 (0.1%)max, 1Khz, 25°C.025 (2.5%)max, 1Khz, 25°C
Insulation Resistance: @ 25°C 1000 Ohm-Farads or 100 Gigohms whichever is less @ 25°C, WVDC 1000 Ohm-Farads or 100 Gigohms whichever is less @ 25°C, WVDC
Insulation Resistance: @ 200°C 1 Ohm-Farads or 100 Megaohms whichever is less @ 200°C, WVDC1 Ohm-Farads or 100 Megaohms whichever is less @ 200°C, WVDC
Dielectric Strength: 2.5 X WVDC, 25°C, 50 mA max.2.5 X WVDC, 25°C, 50 mA max.
Test Parameters: 1Khz ± 50Hz, 1.0±0.2 VRMS, 25°C 1Khz ± 50Hz, 1.0±0.2 VRMS, 25°C
How to Order

Valid options are shown except for Capacitance
A typical PN is R2NF101W106K2J1001W. This part number breaks down as follows:

Capacitors SMPS T-Series BME - 2 chips, 43102, X7R, 100V, 10μF±10%, "J" Leads, Waffle Pack


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MLC General Specifications:

  • Rated Voltage: 50V - 4KV
  • Dielectrics Type: NP0, X7R
  • Capacitance Range: 220 pF - 3.9 μF

Key Features of the High Temperature Capacitor:

  • For Use at Temperatures Up to 200°C
  • Rated Working Voltages from 50V to 4KV
  • Rugged Premolded Case with Hi-Temp Epoxy Fill
  • Compact MLC Designs Utilizing Military Grade Ceramics
  • Custom Sizes, Values, and Voltages Available

Key Features of the High Temperature Capacitor:

  • Oil Well Logging (Downhole)
  • Geophysical Probes
  • Jet Engine Controls

Capacitance and Voltage Selection

Size Code T W H S d Dia. Maximum Capacitance
(±.005") (+/-.030") (+/-.002") 25V 50V 100V 200V 500V 1KV 2KV 3KV 4KV
T2A in 0.100 0.200 0.200 0.100 0.020 NPO 223 153 902 502 302 152 561 221 560
mm (2.54) (5.08) (5.08) (2.54) (0.51) X7R 334 224 124 563 303 103 262 391 121
T2B in 0.100 0.200 0.200 0.170 0.020 NPO 223 153 902 502 302 152 561 221 560
mm (2.54) (5.08) (5.08) (4.32) (0.51) X7R 334 224 124 563 303 103 262 391 121
T2C in 0.100 0.200 0.200 0.200 0.020 NPO 223 153 902 502 302 152 561 221 560
mm (2.54) (5.08) (5.08) (5.08) (0.51) X7R 334 224 124 563 303 103 262 391 121
T3A in 0.100 0.300 0.300 0.200 0.020 NPO 603 503 283 163 103 682 222 102 301
mm (2.54) (7.62) (7.62) (5.08) (0.51) X7R 105 105 394 224 104 123 472 102 221
T3B in 0.150 0.300 0.300 0.200 0.020 NPO 823 623 423 343 203 133 432 222 561
mm (3.81) (7.62) (7.62) (5.08) (0.51) X7R 563 125 824 464 214 563 203 332 102
T3C in 0.250 0.320 0.300 0.200 0.020 NPO 823 683 483 373 273 183 822 362 102
mm (6.35) (8.13) (7.62) (5.08) (0.51) X7R 155 155 904 624 404 124 393 822 222
T3D in 0.275 0.350 0.400 0.300 0.020 NPO 124 104 803 623 503 333 153 562 152
mm (6.99) (8.89) (10.16) (7.62) (0.51) X7R 225 225 165 105 724 274 732 153 472
T4A in 0.250 0.420 0.400 0.300 0.025 NPO 154 124 104 683 563 393 163 103 272
mm (6.35) (10.67) (10.16) (7.62) (0.64) X7R 335 305 205 125 724 334 753 223 562
T4B in 0.300 0.450 0.500 0.300 0.025 NPO 244 224 164 124 783 563 293 103 392
mm (7.62) (11.43) (12.7) (7.62) (0.64) X7R 445 405 305 205 125 564 144 333 103
T5A in 0.100 0.500 0.500 0.400 0.025 NPO 334 184 104 683 413 273 682 392 152
mm (2.54) (12.7) (12.7) (10.16) (0.64) X7R 475 405 125 724 404 104 333 822 222
T5B in 0.150 0.500 0.500 0.400 0.025 NPO 304 254 184 124 803 473 103 822 222
mm (3.81) (12.7) (12.7) (10.16) (0.64) X7R 555 505 335 155 724 224 683 203 562
T5C in 0.200 0.500 0.500 0.400 0.025 NPO 304 254 184 144 104 683 223 123 332
mm (5.08) (12.7) (12.7) (10.16) (0.64) X7R 555 505 275 225 105 394 104 303 103
T5D in 0.250 0.500 0.500 0.400 0.025 NPO 304 254 184 144 104 823 273 153 392
mm (6.35) (12.7) (12.7) (10.16) (0.64) X7R 555 505 275 225 105 474 104 223 103
T5E in 0.300 0.520 0.500 0.400 0.025 NPO 304 254 224 154 104 823 333 153 492
mm (7.62) (13.21) (12.7) (10.16) (0.64) X7R 555 505 275 225 105 564 154 473 153
T5F in 0.400 0.600 0.700 0.500 0.025 NPO 424 324 224 184 124 104 563 203 822
mm (10.16) (15.24) (17.78) (12.7) (0.64) X7R 625 445 405 305 225 105 274 683 222
T6A in 0.375 0.650 0.700 0.600 0.025 NPO 564 484 334 224 204 154 823 333 153
mm (9.53) (16.51) (17.78) (15.24) (0.64) X7R 106 805 525 485 305 125 474 124 333
T6B in 0.300 0.620 0.500 0.500 0.025 NPO 394 304 224 184 124 104 563 223 103
mm (7.62) (15.75) (12.7) (12.7) (0.64) X7R 705 605 405 305 205 684 274 683 183
T7A in 0.200 0.700 0.400 0.500 0.025 NPO 334 274 184 154 114 823 333 153 472
mm (5.08) (17.78) (10.16) (12.7) (0.64) X7R 625 505 335 255 125 474 154 393 103
T7B in 0.300 0.720 0.700 0.600 0.025 NPO 684 504 404 304 224 184 823 393 183
mm (7.62) (18.29) (17.78) (15.24) (0.64) X7R 126 106 725 565 335 125 474 124 333
T7C in 0.375 0.750 0.800 0.700 0.025 NPO 684 564 474 394 294 274 124 473 273
mm (9.53) (19.05) (20.32) (17.78) (0.64) X7R 156 126 985 625 425 225 684 224 473
T8A in 0.350 0.820 0.700 0.700 0.025 NPO 624 564 474 374 284 224 124 473 273
mm (8.89) (20.83) (17.78) (17.78) (0.64) X7R 126 106 825 565 405 225 684 224 473

(Minimum Nominal cap value = 10 pF NPO, 100 pF X7R)
Consult Factory for Sizes & Voltages Not Shown (Standard lead material is nickel)
Leads to be on center ±.010"

Dielectric

 NP0 DielectricX7R Dielectric
Temperature Coefficient:0 ± 30ppm/°C, -55 to 125°C0 ± 30ppm/°C, -55 to 125°C
Cap Drop at 200°C:minus 0.5% maxminus 45% max
Dissipation Factor:.001 (0.1%)max, 1Khz, 25°C.025 (2.5%)max, 1Khz, 25°C
Insulation Resistance: @ 25°C1000 ΩF or 100 GΩ, whichever is less @ 25°C, WVDC1000 ΩF or 100 GΩ, whichever is less @ 25°C, WVDC
Insulation Resistance: @ 200°C1 ΩF or 100 GΩ, whichever is less @ 200°C, WVDC1 ΩF or 100 GΩ, whichever is less @ 200°C, WVDC
Dielectric Strength:  
For 25 - 200 V Ratings:2.5 X WVDC, 25°C, 500 mA max.2.5 X WVDC, 25°C, 500 mA max.
For 500 V Ratings:1.5 X WVDC, 25°C, 500 mA max.1.5 X WVDC, 25°C, 500 mA max.
For 1 - 4 KV Ratings:1.2 X WVDC, 25°C, 500 mA max.1.2 X WVDC, 25°C, 500 mA max.
How to Order

Valid options are shown except for Capacitance
A typical PN is HPEY101G473F3QA001B. This part number breaks down as follows:


New Johanson Global Part Number Breakdown

* Not all combinations create valid part numbers, ask our Apps Engineering Team for assistance creating a valid part number Request for assistance


Click below to see the new Global Part Number Reference Chart for this product

Legacy How to Order Information