Rev Date: 10/13/2010 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.
MLF/MLFM Series
Metal Film Melf Resistor
Stackpole Electronics, Inc.
Resistive Product Solutions
Features:
• Thin Film Technology for precision and stability
• Excellent power to size ratio
• Exhibits good pulse power characteristics
• RoHS compliant / lead-free
Maximum Maximum Resistance
Working Overload Temperature
Voltage(1) Voltage Coefficient 0.1% 0.5% 1% 5%
±10 ppm/ºC 100 - 20K 10 - 20K --
±15 ppm/ºC 100 - 100K 10 - 100K --
±25 ppm/ºC 100 - 270K 4.7 - 560K 4.7 - 1M -
±50 ppm/ºC 100 - 270K 1 - 1M 1 - 10M -
±10 ppm/ºC 100 - 20K 100 - 20K 10 - 20K -
±15 ppm/ºC 100 - 100K 10 - 100K 10 - 100K -
±25 ppm/ºC 100 - 400K 10 - 560K 10 - 560K -
±50 ppm/ºC 100 - 400K 1 - 1M 1 - 5.1M 1 - 5.1M
±15 ppm/ºC 100 - 100K 10 - 100K 10 - 100K -
±25 ppm/ºC 100 - 100K 4.7 - 1M 4.7 - 560K -
±50 ppm/ºC 100 - 100K 1 - 10M 1 - 2.2M 1 - 2.2M
(
1
)
Lesser of
√
PR or maximum workin
g
volta
g
e.
MLFM 1 0207 350V
500V
1W 700V
0.5WMLF 1/2 0207 300V
MLF 1/4 0.25W 400V200V0204
Ohmic Range (Ω) and Tolerance
Type / Code Package
Size
Power Rating
(Watts) @ 70ºC
Electrical Specifications
LDL1K
Body Length Body Diameter Inner Body Termination
0.138 ± 0.008 0.055 ± 0.006 0.09 0.020 ± 0.004 inches
3.50 ± 0.20 1.40 ± 0.15 2.3 0.50 ± 0.10 mm
0.232 ± 0.008 0.087 ± 0.008 0.185 0.020 ± 0.004 inches
5.90 ± 0.20 2.20 ± 0.20 4.7 0.50 ± 0.10 mm
Units
MLF 1/4
MLF 1/2 / MLFM 1
Type / Code
Mechanical Specifications
Rev Date: 10/13/2010 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.
MLF/MLFM Series
Metal Film Melf Resistor
Stackpole Electronics, Inc.
Resistive Product Solutions
Load Life ±2.0%
Load Life in Moisture ±2.0%
Resistance to Soldering Heat ±0.5%
Solderability Min 95% coverage
Short Time Overload ±0.5%
Insulation Resistance 1GΩ minimum
Operating Temperature Range: -55ºC to +155ºC
SpecificationTest
Performance Characteristics
Power Derating Curve:
100
75
50
25
030 60
Ambient Temperature (ºC)
90 120 150 180
Percent Rated Power (%)
Rev Date: 10/13/2010 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.
MLF/MLFM Series
Metal Film Melf Resistor
Stackpole Electronics, Inc.
Resistive Product Solutions
Nominal
Resistance
4.75K
Type Description Code Wattage Tolerance
V
alues SEI Types Pkg Qty Code Description
MLF Standard 1/4 0.25W T1 100 0.1% E96, E24 MLF 1/4 3,000
MLFM Mini 1/2 0.5W T2 50 0.5% E96, E24 MLF 1/2, MLFM 1 2,000
1 1W T9 25 1% E96, E24
TB 10 5% E24
MLF 1/2 T9
SEI Type Code Tolerance Packa gingTCR
TCR (ppm)
0.5% R
7" reel
paper tape
R
How to Order
New part number format starting January 3rd, 2011:
Size
MLF Standard 14 Code Tol Code Code ppm
MLFM Mini 12 B 0.1% T10
1D
0.5% E25
F1% C50
J5% D100
7" reel
paper tape
0.25W
T
560 Kohm = 560K
0.5W
02071W
1 Kohm = 1K00
0204
Four characters with the
multiplier used as the
decimal holder.
3,000
2,000
10 ohm = 10R0
100 ohm = 100R
Size
TCR Resistance ValuePackaging
QuantityDescription
Product Series Power Tolerance
123456789101112
MLF12DTE4K75
How to Order
