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Pulse Withstanding Chip Resistors (PWR)

DeMint (PWR) pulse withstanding chip resistors provide 50 percent increase in power dissipation.

As electronic design engineers have increased the power density of their equipment, the demand for smaller surface mount single-chip circuit protection resistors has also increased. DeMint developed the PWR Series resistors to provide an economical alternative to bulky molded wirewound components or multi-chip solutions while saving both PC board space and manufacturing costs.

To meet the increased demand for the PWR Series resistors, DeMint has developed a series of pulse withstanding chip resistors with improved power ratings in reduced surface mounted sizes. Designated the PWR Series, the SMD resistors deliver up to 50 percent higher power ratings than conventional surface mount resistors - up to 1.5W in a standard 2512 size chip.

DeMint is able to boost this power rating up to 50 percent through a combination of proprietary power film materials and advanced manufacturing processes. The PWR Series Resistors are available in four standard sizes (0603, 0805, 1206, 1210, 2010 and 2512) with power ratings from 0.125W to 1.5W, and maximum operating voltage ratings for 100V to 500V. Resistance range is from 10 Ω to 20 MΩ, with tolerance tight to 0.5 percent. The PWR meets restriction of hazardous substances RoHS directive and RoHS compliance.

Along with the increased power ratings, the PWR Series resistors also feature high surge and high voltage ratings, making them extremely stable in demanding surge and pulse environments. The PWR Series chip resistors are specified for use in power supplies, circuit protection devices, portable battery chargers, motor controls and line-powered equipment.

DeMint will also produce devices outside these specifications to meet specific customer requirements, please contact our sales for more information.
Download complete pdf specification (430KB) Pulse Withstanding Chip Resistors.

Features :
  1. High Power Rating
  2. Tolerance from ±0.5% ~ ±5%
  3. Improved Working Voltage Ratings
  4. Standard Package sizes 0603 ~ 2512
  5. Excellent Pulse Withstanding Performance
Applications :
  1. Power Supplies, Diagnostic Equipment
  2. Industrial Controls, LCD Video Monitors
  3. Portable Battery Chargers, Medical Devices
  4. Motor Controls and Line-Powered Equipment
  5. Metering (Testing/Measurement), Circuit Protection Devices
Dimensions (Unit: mm) (PWR)
Pulse Withstanding Chips (PWR) Construction
Dimensions (Unit: mm) (PWR)
Codes L (Unit: mm) W (Unit: mm) T (Unit: mm) D1 (Unit: mm) D2 (Unit: mm) Weight(g)/1000pcs
PWR03 (0603) 1.60±0.10 0.80±0.10 0.45±0.10 0.30±0.20 0.30±0.20 2,042
PWR05 (0805) 2.00±0.10 1.25±0.10 0.50±0.10 0.35±0.20 0.40±0.25 4,368
PWR06 (1206) 3.10±0.10 1.55±0.10 0.55±0.10 0.50±0.25 0.50±0.20 8,947
PWR13 (1210) 3.10±0.10 2.60±0.15 0.55±0.10 0.50±0.25 0.50±0.20 15,959
PWR10 (2010) 5.00±0.10 2.50±0.15 0.55±0.10 0.60±0.25 0.50±0.20 24,241
PWR12 (2512) 6.35±0.10 3.10±0.15 0.55±0.10 0.60±0.25 0.50±0.20 39,448

Recommend Land Pattern (Unit: mm) (PWR)
Recommend Land Pattern (PWR)
Codes A (mm) B (mm) C (mm)
PWR03 (0603) 0.90 0.60 0.90
PWR05 (0805) 1.20 0.70 1.30
PWR06 (1206) 2.00 0.90 1.60
PWR13 (1210) 2.00 0.90 2.80
PWR10 (2010) 3.80 0.90 2.80
PWR12 (2512) 3.80 1.60 3.50
Standard Electrical Specifications (PWR)
Type Power Rating at 70°C Operating Temp. Range Max Operating Voltage Max Overloading Voltage Resistance Tolerance (%) Resistance Range (Ω) TCR PPM/°C
PWR03 (0603) 1/10W -55 ~ +155°C 50V 100V ±0.5% 10Ω~294Ω ±200
±1%, ±5% 1Ω~294Ω ±200
±0.5%, ±1%, ±5% 300Ω~1MΩ ±100
PWR05 (0805) 1/8W -55 ~ +155°C 150V 300V ±0.5% 10Ω~294Ω ±200
±1%, ±5% 1Ω~294Ω ±200
±0.5%, ±1%, ±5% 300Ω~20MΩ ±100
PWR06 (1206) 1/3W -55 ~ +155°C 200V 400V ±0.5% 10Ω~20Ω ±200
±1%, ±5% 1Ω~20Ω ±200
±0.5%, ±1%, ±5% 20.5Ω~20MΩ ±100
PWR13 (1210) 1/2W -55 ~ +155°C 200V 400V ±0.5% 10Ω~20Ω ±200
±1%, ±5% 1Ω~20Ω ±200
±0.5%, ±1%, ±5% 20.5Ω~20MΩ ±100
PWR10 (2010) 3/4W -55 ~ +155°C 400V 800V ±0.5% 10Ω~20Ω ±200
±1%, ±5% 1Ω~20Ω ±200
±0.5%, ±1%, ±5% 20.5Ω~20MΩ ±100
PWR12 (2512) 1.5W -55 ~ +155°C 500V 1000V ±0.5% 10Ω~20Ω ±200
±1%, ±5% 1Ω~20Ω ±200
±0.5%, ±1%, ±5% 20.5Ω~20MΩ ±100
  • Lower Resistance:(1~10)Ω.
  • Operating Voltage = √ ( P * R ) , or Max. Operating Voltage listed in above table whichever is lower.
  • Overloading Voltage = 2.5*√ ( P * R ) , or Max. Overloading Voltage listed in above table whichever is lower.
  • Optional specifications can be required.

High Power Rating Electrical Specifications (PWR)
Type Power Rating at 70°C Operating Temp. Range Max Operating Voltage Max Overloading Voltage Resistance Tolerance (%) Resistance Range (Ω) TCR PPM/°C
PWR03 (0603) 1/8W, 1/5W -55 ~ +155°C 50V 100V ±0.5% 10Ω~294Ω ±200
±1%, ±5% 1Ω~294Ω ±200
±0.5%, ±1%, ±5% 300Ω~1MΩ ±100
PWR05 (0805) 1/4W -55 ~ +155°C 150V 300V ±0.5% 10Ω~294Ω ±200
±1%, ±5% 1Ω~294Ω ±200
±0.5%, ±1%, ±5% 300Ω~20MΩ ±100
PWR06 (1206) 1/2W -55 ~ +155°C 200V 400V ±0.5% 10Ω~20Ω ±200
±1%, ±5% 1Ω~20Ω ±200
±0.5%, ±1%, ±5% 20.5Ω~20MΩ ±100
PWR10 (2010) 1W -55 ~ +155°C 400V 800V ±0.5% 10Ω~20Ω ±200
±1%, ±5% 1Ω~20Ω ±200
±0.5%, ±1%, ±5% 20.5Ω~20MΩ ±100
  • Lower Resistance:(1~10)Ω.
  • Operating Voltage = √ ( P * R ) , or Max. Operating Voltage listed in above table whichever is lower.
  • Overloading Voltage = 2.5*√ ( P * R ) , or Max. Overloading Voltage listed in above table whichever is lower.
  • Optional specifications can be required.
Environmental Characteristics (PWR)
Power Derating Curve (PWR)
Test Item Specification Test Method
Short Time Overload ±0.5% JIS-C-5201-1 4.13
IEC-60115-1 4.13
RCWV*2.5 or Max Overloading Voltage whichever is lower for 5 seconds
Leaching Individual leaching area ≥5%
Total leaching area ≥10%		 JIS-C-5201-1 4.18
IEC-60068-2-58 8.2.1
-55°C~155°C, 5 cycles
Temperature Coefficient of Resistance As Spec. JIS-C-5201-1 4.8
IEC-60115-1 4.8
+25/-55/+25/+125/+25°C
Load Life
(Endurance)		 ±(1%+0.05Ω) JIS-C-5201-1 4.25
IEC-60115-1 4.25.1
RCWV, 70°C, 1.5 hours ON, 0.5 hours OFF,
total 1000 hours
Humidity (Steady State)
(Damp Heat with Load)		 ±(0.5%+0.05Ω) JIS-C-5201-1 4.24
IEC-60115-1 4.24
40±2°C, 90~95%RH, RCWV 1.5 hours ON,
0.5 hours OFF, total 1000 hours
Resistance to Dry Heat ±0.5% JIS-C-5202-7.2
96 hours @ +155°C without load
Low Temperature Operation ±0.5% JIS-C-5202-7.1
1hour,-65°C followed by 45 minutes of RCWV
Dry Heat ±(0.5%+0.05Ω) JIS-C-5201-1 4.23
IEC-60115-1 4.23.2
at +155°C for 1000 hrs. 2010, 2512 sizes: 2mm; Other sizes: 3mm
Bending Strength ±(1%+0.05Ω) JIS-C-5201-1 4.33
IEC-60115-1 4.33
Bending once for 5 seconds. 2010, 2512 sizes: 2mm; Other sizes: 3mm
Resistance to Soldering Heat ±(0.5%+0.05Ω) JIS-C-5201-1 4.18
IEC-60115-1 4.18
260±5°C, 10±1seconds
Solderability 95% min coverage JIS-C-5201-1 4.17
IEC-60115-1 4.17
245°C±5°C for 3 seconds
Dielectric Withstand Voltage
(Voltage Proof)		 No breakdown or flashover JIS-C-5201-1 4.7
IEC-60115-1 4.7
1.42 times Max. Operating Voltage for 1 minute
Insulation Resistance >10GΩ JIS-C-5201-1 4.6
IEC-60115-1 4.6
Max. Overload Voltage for 1 minute
  • Rated continuous Working Voltage (RCWV) = √ Power Rating × Resistance Value (Ω) or Max. Operating voltage whichever is lower.
  • Storage Temperature: 15°C~28°C; Humidity < 80%RH;
Lightning Surge of Pulse Withstanding Chip Resistor (PWR)
1.2/50µs Lightning Surge Chip Resistor (PWR)
1.2/50µs Lightning Surge Chip Resistor (PWR)
10/700µs Lightning Surge Chip Resistor (PWR)
10/700µs Lightning Surge Chip Resistor (PWR)
Note: Lightning Surge of Pulse Withstanding Chip Resistors are tested in accordance with IEC 60 115-1 using both 10/700μs and 1.2/50μs pulse shapes.
The limit of acceptance is a shift in resistance of less than 1% from the initial value.

Pulse withstanding capacity of Pulse Withstanding Chip Resistor (PWR)
Pulse withstanding capacity of Chip Resistor (PWR)
Pulse withstanding capacity of Chip Resistor (PWR)
Note: The single impulse graph is the result of 50 impulses of rectangular shape applied at one-minute intervals.
The power applied was subject to the restrictions of the maximum permissible impulse voltage graph shown.
The limit of acceptance was a shift in resistance of less than 1% from the initial value.

Continuous Pulse of Pulse Withstanding Chip Resistor (PWR)
Continuous Pulse of Pulse Withstanding Chip Resistor (PWR)
Continuous Pulse of Pulse Withstanding Chip Resistor (PWR)
Pulse Voltage of Chip Resistor (PWR)
Pulse Voltage of Chip Resistor (PWR)
Note: The continuous load graph was obtained by applying repetitive rectangular pulses where the pulse period was adjusted so that the average power dissipated in the resistor was equal to its rated power at 70°C. Again the limit of acceptance was a shift in resistance of less than 1% from the initial value.
Packaging Quantity & Reel Specifications (Unit: mm) (PWR)
Packaging Quantity & Reel Specifications (PWR)
Packaging Quantity & Reel Specifications (PWR)
Codes Packaging Quantity (KPcs) Tape Width Reel Diameter ΦA (mm) ΦB (mm) ΦC (mm) W (mm) T (mm)
PWR03
PWR05
PWR06
PWR13
Paper
 5K 8mm 7 inch 178.5±1.5 60+1/-0 13.0±0.2 9.0±0.5 12.5±0.5
10K 8mm 10 inch 254±1 100±0.5 13.0±0.2 9.0±0.5 13.5±0.5
20K 8mm 13 inch 330±1 100±0.5 13.0±0.2 9.0±0.5 13.5±0.5
PWR10
PWR12
Embossed
 4K 12mm 7 inch 178.5±1.5 60+1/-0 13.0±0.5 13.0±0.5 15.5±0.5
8K 12mm 10 inch 250±1 62±0.5 13.0±0.2 12.5±0.5 16.5±0.5

Paper Tape Specifications (Unit: mm) (PWR)
Paper Tape Specifications (PWR)
Paper Tape Specifications (PWR)
Codes A (mm) B (mm) W (mm) E (mm) F (mm) P0 (mm) P1 (mm) P2 (mm) ΦD0 (mm) T (mm)
PWR03 1.10±0.10 1.90±0.1 8.0±0.2 1.75±0.1 3.50±0.05 4.00±0.10 4.00±0.05 2.00±0.05 1.50+0.1,-0 0.70±0.1
PWR05 1.60±0.10 2.40±0.2 8.0±0.2 1.75±0.1 3.50±0.05 4.00±0.10 4.00±0.05 2.00±0.05 1.50+0.1,-0 0.85±0.1
PWR06 1.90±0.10 3.50±0.2 8.0±0.2 1.75±0.1 3.50±0.05 4.00±0.10 4.00±0.05 2.00±0.05 1.50+0.1,-0 0.85±0.1
PWR13 2.90±0.10 3.50±0.2 8.0±0.2 1.75±0.1 3.50±0.05 4.00±0.10 4.00±0.05 2.00±0.05 1.50+0.1,-0 0.85±0.1

Emboss Plastic Tape Specifications (Unit: mm) (PWR)
Emboss Plastic Tape Specifications (Unit: mm) (PWR)
Emboss Plastic Tape Specifications (Unit: mm) (PWR)
Codes A (mm) B (mm) W (mm) E (mm) F (mm) P0 (mm) P1 (mm) P2 (mm) ΦD0 (mm) T (mm)
PWR10 2.8±0.10 5.5±0.10 12.0±0.3 1.75±0.1 5.5±0.05 4.00±0.10 4.00±0.1 2.00±0.05 1.50+0.1, -0 1.2+0
PWR12 3.5±0.10 6.7±0.10 12.0±0.3 1.75±0.1 5.5±0.05 4.00±0.10 4.00±0.1 2.00±0.05 1.50+0.1, -0 1.2+0

Pulse Withstanding Chip Resistors (PWR) Application & Soldering Notes

Today's electronic devices are becoming smaller and smaller. The requirement, in particular, for pulse withstand capability is growing due to the need to protect sensitive modern electronic systems.

To meet this demand DeMint Electronics have designed a Pulse Withstanding Chip Resistor (PWR Series). The enhanced performance of the chips is made possible by the precise use of the best resistance inks and a closely controlled production process.

Application Notes:

  1. Applications vary from line protection for telecommunications to surge withstanding resistors for use in circuit breakers. Details of a typical telecomm and power supply application are given below.
  2. Telephone lines can be subjected to a large range of voltage disturbances, many of which can damage switching equipment. This has led to the need for circuit protection against both high voltage transients, usually of short duration caused by lighting strikes and overloads of longer duration, due to direct connection to mains power lines.
  3. These two faults are separated into primary and secondary protection.
    1. Primary protection handles the high voltage transients, and is usually located within the exchange.
    2. Secondary protection is usually built into the equipment to be protected, and deals with both current and voltage limiting.
  4. Voltage limiting prevents damage to the equipment and shock hazards, and current limiting prevents damage to wiring.
  5. To determine the suitability of a (PWR) series chip resistors for your application refer to the pulse withstanding data as given lighting surge performance using both 1.2/50μs and 10/700μs pulse shapes.

Soldering Notes:

  1. Electrical connection to a ceramic substrate or to a printed circuit board can be made by
    reflow or wave soldering of wrap-around terminations.
  2. Wrap-around terminations provide good leach properties and ensure reliable contact.
  3. Due to the robust construction, the (PWR) can be immersed in the solder bath for 30 seconds at 260°C.
  4. This enables the resistor to be mounted on one side of a printed circuit board and wire-leaded components applied on the other side.
  5. (PWR) resistors themselves can operate at a maximum temperature of 155°C.
  6. For soldered resistors, the joint temperature should not exceed 110°C.
  7. This condition is met when the stated power levels at 70°C and recommended pad and trace areas are used.
  8. Allowance should be made if smaller areas of copper are used.

Recommend Soldering Condition (PWR)
Recommend Soldering Condition (PWR)
Time of IR reflow soldering at maximum temperature point 260°C：10s
Order Codes (PWR)
PWR 05 D TR C1 W 10R0  
Part Number
Dimensions
03 EIA0603
05 EIA0805
06 EIA1206
13 EIA1210
10 EIA2010
12 EIA2512
Resistance
Tolerance(%)
D ±0.5%
F ±1%
J ±5%
Package
P Bulk
TR Taping Reel
TCR
(ppm/°C)
C1 ±100ppm/°C
C ±200ppm/°C
Power Rating (W)
A 1.5W
O 1/3W
Q 3/4W
T 1W
U 1/2W
V 1/4W
P 1/5W
W 1/8W
X 1/10W
Resistance (Ω)
10R0 10Ω
1000 100Ω
2201 2K2Ω
1002 10KΩ
1003 100KΩ
1004 1MΩ
1005 10MΩ
Marking
  Standard Marking
for E96/E24
N No Marking

0805~2512 4 digits marking for Example Marking
Resistance 100Ω 2.2KΩ 10KΩ 49.9KΩ 100KΩ 1MΩ
Marking 1000 2201 1002 4992 1003 1004

0603: 3 digits nominal Table E24 Marking
E24 code 10 11 12 13 15 16 18 20 22 24 27 30 33 36 39 43 47 51 56 62 68 75 82 91
  • Example: 101=100Ω 102=1KΩ (1st and 2nd are E24 code and 3rd code is multiplier)
  • Resistance tolerance 1% for 0603: 3 digits marking in E96 (E96 series except E24 series)
  • Digits marking for Example: 13C=13K3Ω; 68B=4K99Ω; 68X=49.9Ω

Marking Table E96 Marking
code 02 03 04 06 07 08 09 10 11 13 14 15 16 17 19 20 21 22 23 24 25 26 27
E96 102 103 107 113 115 118 121 124 127 133 137 140 143 147 154 158 162 165 169 174 178 182 187
code 28 29 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51
E96 191 196 205 210 215 221 226 232 237 243 249 255 261 267 274 280 287 294 301 309 316 324 332
code 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74
E96 340 348 357 365 374 383 392 402 412 422 432 442 453 464 475 487 499 511 523 536 549 562 576
code 75 76 77 78 79 80 81 82 83 84 86 87 88 89 90 91 92 93 94 95 96
E96 590 604 619 634 649 665 681 698 715 732 768 787 806 825 845 866 887 909 931 953 976

Multiplier E96 Marking
Code A B C D E F X Y
Multiplier 100 101 102 103 104 105 10-1 10-2