Rev Date: 02/10/2012 1 www.seielect.com
This specification may be changed at any time without prior notice marketing@seielect.com
Please confirm technical specifications before you order and/or use.
RC Series
Carbon Composition Resistor
Stackpole Electronics, Inc.
Resistive Product Solutions
Features:
• Non-inductive design
• Molded body for package uniformity
• Ideal for pulse-load handling characteristics
• 1W now available
• RoHS compliant / lead-free
Maximum
Continuous
Working Voltage (1) 5% 10%
RC14 0.25W 250V 400V 500V 2.2 - 5.6M 1 - 5.6M
RC12 0.5W 350V 700V 700V 1 - 22M 1 - 22M
RC1 1W 500V 1,000V 1,000V - 2.2 - 1M
(1) Lesser of √PR or maximum working voltage.
Ohmic Range (Ω) and Tolerance
Type / Code Power Rating
(Watts) @ 70ºC
Maximum
Pulse Voltage
Dielectric Withstanding
Voltage
Electrical Specifications
0
Ambient Temperature (ºC)
-55 70 125
20
80
60
40
100
Percentage of the Rated Dissipation (%)
Area of Recommended Operation
0.248 ± 0.028 0.094 ± 0.004 1.181 ± 0.118 0.024 ± 0.002 inches
6.30 ± 0.70 2.40 ± 0.10 30.00 ± 3.00 0.60 ± 0.050 mm
0.374 + 0.031 / -0.028 0.142 ± 0.008 1.102 ± 0.118 0.028 + 0.003 / -0.002 inches
9.50 + 0.80 / -0.70 3.60 ± 0.20 28.00 ± 3.00 0.70 + 0.070 / -0.05 mm
0.563 ± 0.028 0.224 ± 0.012 1.024 ± 0.118 0.035 ± 0.002 inches
14.30 ± 0.70 5.70 ± 0.30 26.00 ± 3.00 0.90 ± 0.050 mm
RC1
Type / Code Unit
RC14
RC12
A
Body Length
B
Body Diameter
C
Lead Length (Bulk)
D
Lead Diameter
Mechanical Specifications
Power Derating Curve:
Rev Date: 02/10/2012 2 www.seielect.com
This specification may be changed at any time without prior notice marketing@seielect.com
Please confirm technical specifications before you order and/or use.
RC Series
Carbon Composition Resistor
Stackpole Electronics, Inc.
Resistive Product Solutions
Under 1K +2 to + 5 -4 to -2
1K to 9.1K +5 to +9 -5 to -3
10K to 91K +8 to +11 -7 to -5
100K to 910K +10 to +14 -9 to -7
1M to 10M +13 to +20 -14 to -9
Maximum % resistance change from
room temperature (+25ºC) value
Resistance Range -55ºC +105ºC
Resistance Temperature Characteristics
Test Test Results Test Method
V-block method RC 1/4 100 VAC, 60 seconds
RC 1/2 500 VAC, 60 seconds
±2% +0.05Ω
No visible damage, legible markings
Tensile: ±2% +0.05Ω. No visible damage 10N for 5 - 10 seconds
Bending: ±2% +0.05Ω. No visible damage 5N, twice
Torsion: ±2% +0.05Ω. No visible damage 180ºC, two rotations
Solderability In accordance with Clause 4.17.4.5 235ºC, 5 seconds
±3% +0.05Ω
No visible damage, legible markings
±2% +0.05Ω
No visible damage.
±10% +0.5Ω
Insulation resistance: R ≥100M ohm.
No visible damage, legible markings
±10% +0.5Ω
Insulation resistance: R ≥1G ohm.
No visible damage.
±10% +0.5Ω
Insulation resistance: R ≥1G ohm.
No visible damage.
Operating Temperature Range: -55ºC to +125ºC
Endurance @ 70ºC Rated voltage, 1.5 hours ON, 0.5 hours OFF at 70ºC, 1,000 hours
Endurance @ 125ºC 125ºC, no load, 1,000 hours
Climatic Sequence ±10% +0.5ΩDry/Damp heat: 12 +12 hour cycle, first cycle
Cold/Damp heat: 12 + 12 hour cycle, remaining cycle D.C. load
40ºC 95% relative humidity for 56 days,
test a, b and c of Clause 4.24.2.1
Damp Test, Steady State
Termination Strength
After immersion into flux, the immersion into solder shall be carried
out 4mm from the body at 350ºC for 3.5 seconds
Resistance to Soldering
Heat
Temperature Shock 5 cycles between -55ºC to 125ºC
Voltage Proof No breakdown or flashover
2.5 times the rated voltage or twice the limiting element voltage,
whichever is less. Severe, 5 seconds.
Overload
Performance Characteristics (JISC 5201 - 1:1998)
Load Ratio Total Testing Number of Average Lifetime
P/Pn (%) Time (Hrs) Fractures (pcs) ƛƛ
CL (60%) (60% reliability level) (Hrs)
02.984 x 10
6
6 0.201 0.244 4.098 x 10
5
20 2.990 x 10
6
4 0.134 0.176 5.682 x 10
5
60 2.997 x 10
6
2 0.067 0.104 9.615 x 10
5
100 2.992 x 10
6
3 0.1 0.139 7.194 x 10
5
Total 1.196 x 10
7
15 0.125 0.138 7.209 x 10
5
±10 Total 1.2 x 10
7
0 0.0055 0.0077 1.299 x 10
7
∆ R/R
Criteria (%) Failure Ratio
±5
Reliability Test – Load Life in Moisture
Rev Date: 02/10/2012 3 www.seielect.com
This specification may be changed at any time without prior notice marketing@seielect.com
Please confirm technical specifications before you order and/or use.
RC Series
Carbon Composition Resistor
Stackpole Electronics, Inc.
Resistive Product Solutions
Technical Guide:
1. Storage Conditions:
Temperature: 5 to 35ºC (40 to 95ºF)
Humidity: 25 – 60% relative humidity
Term: Two years in factory poly-bag with desiccant. If parts are removed from the poly-bag,
they should be used immediately or resealed in the bag.
Environment: Clean, dry environment, free of corrosive gases
2. Application precautions:
Lead forming: Forming is recommended at least 2mm of farther from the base of the lead
Soldering: Soldering is recommended at least 4mm or farther from the base of the lead
3. Washing:
Carbon composition resistors are highly hygroscopic and changes in resistance value can occur if too much
moisture is absorbed. For this reason it is recommended not to use water or water-soluble solvents to clean these
components. Alcohol or hydrocarbon solvents are recommended for rinsing.
4. Soldering Recommendations:
Note: The conditions shown below are for reference. Please perform a mounting evaluation to assure compatibility.
a. Flow soldering (recommended profile for Sn and Sn/Pb solders)
b. Soldering iron (recommended for Sn and Sn/Pb solders)
Temperature of soldering tip: 300ºC, duration: 10 sec. max.
Temperature of soldering tip: 350ºC, duration: 3 sec. max.
Other:
1. Evaluate and confirm the compatibility of your assembly process with this product.
2. Refer to the catalog, the product news, and the specifications for details on the RC series resistors.
3. If you have any questions, please contact our sales staff.
Rev Date: 02/10/2012 4 www.seielect.com
This specification may be changed at any time without prior notice marketing@seielect.com
Please confirm technical specifications before you order and/or use.
RC Series
Carbon Composition Resistor
Stackpole Electronics, Inc.
Resistive Product Solutions
How to Order
12345678910
RC12JT5M60
Size
RC 14 Code Quantity
12 J 5,000
1K 1,000
Tol
5%
10%
Value
E24
0.25W
All Sizes1W
Carbon Comp
Tape and Reel 14, 120.5W
Code
T
B
10 Kohm = 10K0
1 Mohm = 1M00
Product Series Power Rating Resistance ValuePackagingTolerance
1 ohm = 1R00
Description Size Four characters with
the multiplier used as
the decimal holder.
Bulk
Legacy Part Number (before January 3, 2011):
Tolerance
5%
T
y
pe Description Code Watta
g
e Tolerance
V
alues T
y
pe Qt
y
Description Code
RC Carbon Comp 1/4 0.25W 5% 14, 12 5,000 tape and reel R
1/2 0.5W 10% all 1,000 bulk A
11W
E24
Packaging
R
Nominal Resistance
5.6MRC
SEI Type Code
1/2
