Rev Date: 05/31/2012 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.
FRN Series
Fusing Resistor
Stackpole Electronics, Inc.
Resistive Product Solutions
Features:
• Coating meets UL 94V-0
• Designed for constant current to provide overload
protection
• Consistent performance and reliability
• Cut and formed product is available on select sizes, contact
factory for details
• RoHS compliant / lead-free
Operating Temperature Range: -40ºC to +155ºC
±5%
±1%
Test ResultsTest
Moisture Resistance
Thermal Shock
Load Life @ 70ºC - 1,000hrs ±5%
±2%
Resistance to Soldering Heat ±1%
Short Time Overload
FRN16 0.166W 150V 200V ±350 ppm/ºC 0.56
- 10K
FRN14 0.25W 200V 300V ±350 ppm/ºC 0.22
- 10K
FRN12 0.5W 250V 400V ±350 ppm/ºC 0.47
- 10K
FRN1 1W 300V 600V ±350 ppm/ºC 0.47
- 10K
FRN2 2W 300V 600V ±350 ppm/ºC 1
-3K
(1) Lesser of √PR or maximum working voltage
Resistance Temperature
Coefficient
Type / Code Power Rating
(Watts) @ 70ºC
Maximum Working
Voltage (1)
Maximum Overload
Voltage
Ohmic Range (Ω) and Tolerance
5%
Electrical Specifications
0.126 + 0.008 / 0 0.073 + 0.006 1.102 + 0.118 0.018 + 0.002 inches
3.20 + 0.20 / 0 1.85 ± 0.15 28.00 ± 3.00 0.45 ± 0.05 mm
0.236 + 0.020 0.091 + 0.008 1.102 + 0.118 0.022 + 0.002 inches
6.00 ± 0.50 2.30 ± 0.20 28.00 ± 3.00 0.55 ±0.05 mm
0.354 + 0.039 0.118 + 0.020 1.102 + 0.118 0.028 + 0.002 inches
9.00 ± 1.00 3.00 ± 0.50 28.00 ± 3.00 0.70 ±0.05 mm
0.433 + 0.039 0.157 + 0.020 1.102 + 0.118 0.031 + 0.002 inches
11.00 ± 1.00 4.00 ± 0.50 28.00 ± 3.00 0.80 ±0.05 mm
0.591 + 0.039 0.217 + 0.039 1.378 + 0.118 0.031 + 0.002 inches
15.00 ± 1.00 5.50 ± 1.00 35.00 ± 3.00 0.80 ±0.05 mm
FRN16
A
Body Length Unit
FRN2
FRN12
FRN1
FRN14
D
Lead Diameter
Type / Code B
Body Diameter
C
Lead Length (Bulk)
Mechanical Specifications
Performance Characteristics
Rev Date: 05/31/2012 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.
FRN Series
Fusing Resistor
Stackpole Electronics, Inc.
Resistive Product Solutions
1234567891011
FRN12JT4R70
Fusing Curves
Power Rating Power Rating Power Rating Power Rating
How to Order
Size
FRN Fusin
g
Metal Film 16 Code Value Code Quantity
14 J E24 5,000
12 2,500
11,000
25,000
2,000
1,000
500
2,000
1,000
Tol Description Size
FRN16
T Tape and Reel
A10 Kohm = 10K0
FRN16, FRN14
0.47 ohm = R470
Four characters
with the multiplier
used as the
decimal holder.
Product Series Power Rating Resistance ValueTolerance
0.25W 5%
Ammo
Packaging
0.166W
FRN1
FRN14, FRN12
FRN2
0.5W
1W
2W
FRN12, FRN1
FRN2
FRN16
FRN1, FRN2
FRN14, FRN12BBulk
Legacy Part Number (before January 3, 2011):
Nominal
Resistance
4.7
Type Description Code Wattage Tolerance
V
alues SEI Types Pkg Qty Description Code
1/6 0.166W 5% E24 FRN16, FRN14 5,000
1/4 0.25W FRN12, FRN1 2,500
1/2 0.5W FRN2 1,000
11W FRN16 5,000
22W FRN14, FRN12 2,000
FRN1 1,000
FRN2 500
FRN16 2,000
FRN14, FRN12
FRN1, FRN2
FRN Fusing Metal
Film
SEI Type Code Tolerance Packaging
FRN 1/2 5%
1,000 bulk A
R
tape and reel R
ammo T
