Rev Date: 04/11/2018 1 www.seielect.com
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MLFA Series
Metal Film Melf Resis tor – AEC-Q200 Qualified
Stackpole Electronics, I nc.
Resistive Product Solutions
Maximum Maximum Resistance
Working Overload Temperature
Voltage
(1)
Voltage
(2)
Coefficient
±50 ppm/ºC
±100 ppm/ºC
Jumper: 2A -
±15 ppm/ºC
±25 ppm/ºC
±50 ppm/ºC
±100 ppm/ºC
Jumper: 2A -
±15 ppm/ºC
±25 ppm/ºC
±50 ppm/ºC
±100 ppm/ºC
Jumper: 4A -
(1)
Working Voltage = √(P*R) or Max. Operating Voltage listed above, whichever is lower.
(2)
Overload Voltage = 2.5*√(P*R) or Max. Overload Voltage listed above, whichever is lower.
RCWV (Rated Continuous Working Voltage) = √(P*R) or Max Operating Voltage, whichever is lower.
MLFA25
0204
200V
400V
MLFA1
350V
0207
10 - 300K
10 - 1M
10 - 1M
10 - 300K
10 - 1M
Type/Code
Package
Size
Ohmic Range (Ω) and Tolerance
0.1%
0.5%
1%
5%
10 - 1M
1 - 1M
0.2 - 1M
8.2 - 1M
700V
1 - 1M
0.2 - 1M
0Ω (<15mΩ)
(3)
Lower TCR with lower Power Ratings may be available - contact factory
MLFA13
(3)
0102
200V
400V
-
8.2 - 1M
0Ω (<15mΩ)
-
0.1 - 1M
0Ω (<15mΩ)
-
0.1 - 1M
-
Features:
Operating Temperature Range: -55 ~ +155°C
• Thin film technology for precision and stability
• Excellent power to size ratio
• Outstanding pulse handling
• Excellent overall stability
• Sn termination on Ni barrier layer
• Tight tolerance down to ±0.1%
• Extremely low TCR down to ±15ppm/ºC
• High power rating up to 1 Watt
• SMD enabled structure
• AEC-Q200 qualified
• RoHS compliant, lead-free and haloge n-free
Electrical Specifica tions
Mechanic al Spec ificati ons
0.087 ±0.004 0.043 ±0.004 0.018 ±0.002 inches
2.20 ±0.10 1.10 ±0.10 0.45 ±0.05 mm
0.138 ±0.008 0.055 ±0.006 0.031 ±0.004 inches
3.50 ±0.20 1.40 ±0.15 0.80 ±0.10 mm
0.232 ±0.008 0.087 ±0.008 0.051 ±0.004 inches
5.90 ±0.20 2.20 ±0.20 1.30 ±0.10 mm
80.9
MLFA1
Termination
MLFA13
7.7
MLFA25
18.7
Unit
Type / Code
L
Body Length
D
Body Diameter
K
Weight ( 1000 pc) ( g)
Rev Date: 04/11/2018 2 www.seielect.com
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MLFA Series
Metal Film Melf Resis tor – AEC-Q200 Qualified
Stackpole Electronics, I nc.
Resistive Product Solutions
Test Test M ethod Test Specificat ion
JI S-C- 5201- 1 4. 8
I EC-60115-1 4.8
-55ºC ~ + 125ºC, 25ºC is the r ef er ence t emperat ure
JI S-C- 5201- 1 4. 13
10Ω-270KΩ:±(0.1%+0.05Ω)
I EC-60115-1 4.13
<10Ω&>270KΩ:±(0.15%+0.05Ω)
MLFA13: ±(0.15%+0.05Ω)
JI S-C- 5201- 1 4. 6
I EC-60115-1 4.6
Max. over load volt age f or 1 minut e
JI S-C- 5201- 1 4. 25
10Ω-270KΩ:±(0.25%+0.05Ω)
I EC-60115-1 4.25.1
<10Ω&>270KΩ:±(0.5%+0.05Ω)
MLFA13: ±(0.5%+0.05Ω)
MIL- STD-202 M et hod 103 10Ω-270KΩ:±(0.5%+0.05Ω)
1000 hours 85°C/85% RH 10% of oper at ing pow er <10Ω&>270KΩ:±(1%+0.05Ω)
MLFA13: ±(2%+0.05Ω)
MIL- STD-202 M et hod 108 10Ω-270KΩ:±(0.25%+0.05Ω)
at + 155°C for 1000 hours
<10Ω&>270KΩ:±(0.5%+0.05Ω)
MLFA13: ±(1%+0.05Ω)
AEC-Q200-005 10Ω-270KΩ:±(0.1%+0.05Ω)
Bending once for 60 seconds with 2mm
<10Ω&>270KΩ:±(0.5%+0.05Ω)
MLFA13: ±(0.5%+0.05Ω)
JI S-C- 5201- 1 4. 17
I EC-60115-1 4.17
J-STD-002
245±5ºC for 3 seconds
MIL- STD-202 M et hod 210
10Ω-270KΩ:±(0.1%+0.05Ω)
260±5ºC for 10 seconds
<10Ω&>270KΩ:±(0.25%+0.05Ω)
MLFA13: ±(0.25%+0.05Ω)
JI S-C- 5201- 1 4. 7
I EC-60115-1 4.7
1. 42 t imes max. oper ating voltage f or 1 minute
Insul ati on Resi stance
≥10G
Temper at ur e Coefficient of
Res is tance (T .C.R. )
As specified
Shor t Time Overload
Voltage Proof
No br eakdown or f lashover
RCWV* 2. 5 or max. overload volt age w hichever is
lower f or 5 s econds
70±2ºC, RCWV for 1000 hours
w ith 1.5 hour "ON" and 0.5 hour "OFF"
Solderability
Biased Humidity
95% min. cover age
Endurance
High Temperat ur e Exposure
Board Flex
Resistance t o Soldering Heat
Power Derating Curve:
Performance Characteristics
0
Ambien t T emperature (ºC)
120
140
160
180
155ºC
-60
0
20
40
60
80
100
100
-55ºC
70ºC
80
60
40
20
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MLFA Series
Metal Film Melf Resis tor – AEC-Q200 Qualified
Stackpole Electronics, I nc.
Resistive Product Solutions
Performance Characteristics
(cont.)
Test Test M ethod Test Specif ication
JI S-C- 5201- 1 4. 18
I EC-60068-2- 58 8.2.1
I ndividual leaching ar ea ≤5%
260±5ºC for 30 seconds
Total leaching area ≤10%
JESD22 M et hod JA- 104
10Ω-270KΩ:±(0.25%+0.05Ω)
-55° C to + 125°C, 1000 cyc les
<10Ω&>270KΩ:±(0.5%+0.05Ω)
MLFA13: ±(1%+0.05Ω)
MIL- STD-202 M et hod 213
Wave For m: Tolerance f or half s ine shock pulse.
Peak value is 100g's. Normal dur at ion ( D) is 6.
MIL- STD-202 M et hod 204
5 g's f or 20 minutes . , 12 c ycles each of 3 or ientations,
10-2000 Hz
AEC-Q200-002
Human body, 2KV
MIL- STD-202 M et hod 215
AEC-Q200-006
Force of 1.8 Kg f or 60 sec onds
UL-94
V-0 or V-1 ar e ac cept able. Electr ical tes t not r equired.
RCWV ( r at ed continuous w or k ing volt age) = √( P*R) or max. oper ating voltage whichever is low er .
Vibration
Temper at ur e Cycling
Stor age t emperat ure: 15~ 28 ºC. Humidity < 80% R. H.
No ignit ion of t he tissue paper or
scor ching of the pinewood board
Flammability
Resistance t o Solvent s
No visible damage on appear ance
and mark ing.
Terminal Strength
No br eakage
Add aqueous wash chemical - OKEM c lean or
equivalent. Do not use banned solvent s .
Leaching
±(0.5%+0.05Ω)
ESD
Mec hanical Shock
±(0.25%+0.05Ω)
±(0.5%+0.05Ω)
Reel Specifications
Type / Code Reel Diamet er Unit
0.276 7.028 ±0.059 2.362 ±0.039 0.512 ±0.008 0.354 ±0.020 0.492 ±0.020 inches
7.00 178.50 ±1.50 60.00 ±1.00 13.00 ±0.20 9.00 ±0.50 12.50 ±0.50 mm
0.276 7.028 ±0.059 2.362 ±0.039 0.512 ±0.008 0.354 ±0.020 0.492 ±0.020 inches
7.00 178.50 ±1.50 60.00 ±1.00 13.00 ±0.20 9.00 ±0.50 12.50 ±0.50 mm
0.276 7.028 ±0.059 2.362 ±0.039 0.512 ±0.020 0.512 ±0.020 0.610 ±0.020 inches
7.00 178.50 ±1.50 60.00 ±1.00 13.00 ±0.50 13.00 ±0.50 15.50 ±0.50 mm
øB
øC
W
T
MLFA1
øA
MLFA13
MLFA25
Rev Date: 04/11/2018 4 www.seielect.com
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MLFA Series
Metal Film Melf Resis tor – AEC-Q200 Qualified
Stackpole Electronics, I nc.
Resistive Product Solutions
Type / Code ABCUnit
0.039 0.031 0.059 inches
1.00 0.80 1.50 mm
0.063 0.047 0.063 inches
1.60 1.20 1.60 mm
0.118 0.067 0.094 inches
3.00 1.70 2.40 mm
MLFA1
MLFA13
MLFA25
Packaging Specifications - Embossed Plastic Tape
Recommended Pad Layout
Type / Code Unit
0.051 ±0.004 0.094 ±0.004 0.315 ±0.004 0.069 ±0.004 0.138 ±0.002 0.157 ±0.004 inches
1.30 ±0.10 2.40 ±0.10 8.00 ±0.10 1.75 ±0.10 3.50 ±0.05 4.00 ±0.10 mm
0.061 ±0.004 0.144 ±0.004 0.315 ±0.004 0.069 ±0.004 0.138 ±0.002 0.157 ±0.004 inches
1.55 ±0.10 3.65 ±0.10 8.00 ±0.10 1.75 ±0.10 3.50 ±0.05 4.00 ±0.10 mm
0.094 ±0.004 0.242 ±0.004 0.472 ±0.004 0.069 ±0.004 0.217 ±0.002 0.157 ±0.004 inches
2.40 ±0.10 6.15 ±0.10 12.00 ±0.10 1.75 ±0.10 5.50 ±0.05 4.00 ±0.10 mm
MLFA1
MLFA13
P0
A
B
W
E
F
MLFA25
Type / Code Unit
0.157 ±0.004 0.079 ±0.002 0.059 ±0.004 min. 0.059 ±0.004 inches
4.00 ±0.10 2.00 ±0.05 1.50 ±0.10 min. 1.50 ±0.10 mm
0.157 ±0.004 0.079 ±0.002 0.059 ±0.004 min. 0.071 ±0.004 inches
4.00 ±0.10 2.00 ±0.05 1.50 ±0.10 min. 1.80 ±0.10 mm
0.157 ±0.004 0.079 ±0.002 0.059 ±0.004 min. 0.106 ±0.004 inches
4.00 ±0.10 2.00 ±0.05 1.50 ±0.10 min. 2.70 ±0.10 mm
T
D0
D1
MLFA1
P1
P2
MLFA13
0.055
1.40
0.035
0.90
MLFA25
0.035
0.90
Rev Date: 04/11/2018 5 www.seielect.com
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MLFA Series
Metal Film Melf Resis tor – AEC-Q200 Qualified
Stackpole Electronics, I nc.
Resistive Product Solutions
Soldering Condition:
(1) Time of IR reflow soldering at maximum temperature point 260°C : 10s
(2) Time of wave soldering at maximum temperature point 260°C : 10s
(3) Time of soldering iron at maximum tem perature point 410°C : 5s
Pulse Withstanding Capacity
The single impulse graph is the result of 50 impulses of rectangular shape applied at one-minute intervals. The limit of
acceptance was a shift in resistance of less than 1% from the initial value. The power applied was subject to the
restrictions of the maximum permissible impulse voltage graph shown.
MLFA13 Single Pulse
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MLFA Series
Metal Film Melf Resis tor – AEC-Q200 Qualified
Stackpole Electronics, I nc.
Resistive Product Solutions
MLFA25/MLFA1 Single Pulse (100 Ohm)
Continu ous P uls e
The continuous load graph was obtained by applying repetitive rectangular pulses where the pulse period was adjusted
so that the average pow er dis sipa ted in the resistor was equal to its rated power at 70ºC. Again the limit of acceptance
was a shift in resistance of less than 1% from the initial value.
MLFA13 Continuous Pulse
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MLFA Series
Metal Film Melf Resis tor – AEC-Q200 Qualified
Stackpole Electronics, I nc.
Resistive Product Solutions
MLFA13 Puls e Vol tag e (100 Ohm)
MLFA25/MLFA1 Continuous Pulse (100 Ohm)
Rev Date: 04/11/2018 8 www.seielect.com
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MLFA Series
Metal Film Melf Resis tor – AEC-Q200 Qualified
Stackpole Electronics, I nc.
Resistive Product Solutions
MLFA25/MLFA1 Pulse Voltage (100 Ohm)
Frequency Behavior
Resistors are d esigned t o func tion ac cordi ng to Ohmic la ws. This is bas icall y true of res istors f or fr equencies up to 100
kHz. At higher frequencies, there is an additional cont ribution to the impedance b y an ideal resistor switched in series
with a coil and both switched parallel to a capacitor. The values of the capacitance and inductance are mainly
determined by the dimensions of the terminations and the conductive path length.
The environment surrounding components has a large influence on the behavior of the component on the printed-circuit
board.
MLFA25 Frequency versus Impedance
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MLFA Series
Metal Film Melf Resis tor – AEC-Q200 Qualified
Stackpole Electronics, I nc.
Resistive Product Solutions
MLFA25 Frequency versus Phase Angle
MLFA1 Frequency versus Impedance
Rev Date: 04/11/2018 10 www.seielect.com
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MLFA Series
Metal Film Melf Resis tor – AEC-Q200 Qualified
Stackpole Electronics, I nc.
Resistive Product Solutions
MLFA1 Frequency versus Phase Angle
Lightning Surge
Resistors are tested in accordance with IEC 60 115-1 using both 1.2/50µs and 10/700µs pulse shapes. The limit of
acceptance is a shift in resistance of less than 0.5% from the initial value.
MLFA13 1.2/ 50µs Light nin g Surge
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MLFA Series
Metal Film Melf Resis tor – AEC-Q200 Qualified
Stackpole Electronics, I nc.
Resistive Product Solutions
MLFA13 10/ 700 µs Lightning Surge
MLFA25/MLFA1 1.2/50μs Lightning Surge
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MLFA Series
Metal Film Melf Resis tor – AEC-Q200 Qualified
Stackpole Electronics, I nc.
Resistive Product Solutions
10/700μs Lightning Surge
RoHS Complian c e
Stackpole Electronics has joined the worldwide effort to reduce the amount of lead in electronic components and to meet the various
regulatory requirements now prevalent, such as the European Union’s directive regarding “Restrictions on Hazardous Substances”
(RoHS 2). As part of this ongoing program, we periodically update this document with the status regarding the availability of our
compliant components. All our standard part numbers are compliant to EU Directive 2011/65/EU of the European Parliament.
Conflict Metals” Commitment
We at Stackpole Electronics, Inc. are joined with our industry in opposing the use of metals mined in the “conflict region” of the
Eastern Democratic Republic of the Congo (DRC) in our products. Recognizing that the supply chain for metals used in the
electronics industry is very complex, we work closely with our own suppliers to verify to the extent possible that the materials and
products we supply do not contain metals sourced from this conflict region. As such, we are in compliance with the requirements of
Dodd-Frank Act regarding Conflict Minerals.
RoHS Compliance Status
MLFA
M e ta l Film M e lf Resis tor
(AEC-Q 200 Q ualified)
SMD YES 100% M at t e Sn Always Always
Lead-Fr ee
Mfg. Effective Date
(St d Product Series)
Lead-Fr ee
Eff ective Date
Code
(YY/WW)
Standar d
Product
Series
Description
Package /
Termination
Type
Standard
Series
RoHS
Compliant
Lead-Fr ee Ter minat ion
Composition
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MLFA Series
Metal Film Melf Resis tor – AEC-Q200 Qualified
Stackpole Electronics, I nc.
Resistive Product Solutions
Code Size Code Tol Value Code Code
ppm
13 0102 B0.1% Z
jumper
25 0204 D0.5% S
15
10207 F1% E25
J5% E24 C50
ZJumper D100
Description
1 Mohm = 1M 00
100 Kohm = 100K
1 ohm = 1R00
3,000
1W
MLFA1
MLFA25
E96, E24
0.3W
T
7" Reel
Plastic Tape
MLFA13
zer o ohm jumper = 0R00
MLFA
Product Ser ies
TCR
Resistance Value
Packaging
Tolerance
Power Rat ing
Power
0.4W
Four charact er s w it h the
multiplier used as t he
decimal holder.
2,000
Quantity
Product Code
Complianc e to “REACH”
We certify that all passive components supplied by Stackpole Electronics, Inc. are SVHC (Substances of Very High Concern) free
and compliant with the requirements of EU Directive 1907/2006/EC, “The Registration, Evaluation, Authorization and Restriction of
Chemicals”, otherwise referred to as REACH. Contact us for complete list of REACH Substance Candidate List.
Environmental Policy
It is the policy of Stackpole Electronics, Inc. (SEI) to protect the environment in all localities in which we operate. We continually
strive to improve our effect on the environment. We observe all applicable laws and regulations regarding the protection of our
environment and all requests related to the environment to which we have agreed. We are committed to the prevention of all forms
of pollution.
How to Order
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