MMA 0204 HT Professional
www.vishay.com
Vishay Beyschlag
Professional High Temperature Thin Film MELF Resistors
FEATURES
• 175 °C specified operating temperature
• IECQ-CECC approved
EN 140401-803
• AEC-Q200 qualified
• Advanced metal film technology
• Excellent stability < 0.1 %
• Intrinsic sulfur resistance
MMA 0204 professional high temperature MELF resistors
are the perfect choice for most fields of modern professional
electronics where high operating temperatures, power
rating, reliability and stability is of major concern. These
improved properties are enabled by a modified resistive film
material. The typical applications in the fields of automotive
and industrial equipment reflect the outstanding level of
proven reliability.
• Material categorization: for definitions of
compliance please see
www.vishay.com/doc?99912
according
to
APPLICATIONS
• Automotive
• Industrial
TECHNICAL SPECIFICATIONS
DESCRIPTION
DIN size
Metric size code
Resistance range
Resistance tolerance
Temperature coefficient
Rated dissipation,
P
70 (1)
Operating voltage,
U
max.
AC
RMS
/DC
Permissible film temperature,
ϑ
F max. (1)
Operating temperature range
(1)
Permissible voltage against ambient (insulation):
1 min,
U
ins
Failure rate: FIT
observed
Note
(1)
Please refer to APPLICATION INFORMATION below
300 V
≤
0.05 x 10
-9
/h
MMA 0204 HT
0204
RC3715M
47
Ω
to 100 kΩ; 0
Ω
± 1 %; ± 0.5 %
± 50 ppm/K; ± 25 ppm/K
0.5 W
200 V
175 °C
-55 °C to 175 °C
APPLICATION INFORMATION
When the resistor dissipates power, a temperature rise above the ambient temperature occurs, dependent on the thermal
resistance of the assembled resistor together with the printed circuit board. The rated dissipation applies only if the permitted
film temperature is not exceeded.
These resistors do not feature a limited lifetime when operated within the permissible limits. However, resistance value drift
increasing over operating time may result in exceeding a limit acceptable to the specific application, thereby establishing a
functional lifetime.
Revision: 11-Nov-2021
Document Number: 28780
1
For technical questions, contact:
melf@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
MMA 0204 HT Professional
www.vishay.com
MAXIMUM RESISTANCE CHANGE AT RATED DISSIPATION
OPERATION MODE
Rated dissipation,
P
70
Operating temperature range
Permissible film temperature,
ϑ
F
max.
MMA 0204 HT
Max. resistance change at
P
70
for resistance range, |ΔR/R| after:
1000 h
8000 h
225 000 h
≤
0.10 %
≤
0.15 %
≤
1.0 %
MMA 0204 HT
STANDARD
0.25 W
-55 °C to 125 °C
125 °C
POWER
0.4 W
-55 °C to 155 °C
155 °C
47
Ω
to 100 kΩ
≤
0.15 %
≤
0.35 %
-
≤
0.25 %
-
-
HIGH TEMPERATURE
0.5 W
-55 °C to 175 °C
175 °C
Vishay Beyschlag
Note
• The presented operation modes do not refer to different types of resistors, but actually show examples of different loads, that lead to
different film temperatures and different achievable load-life stability (drift) of the resistance value. A suitable low thermal resistance of the
circuit board assembly must be safeguarded in order to maintain the film temperature of the resistors within the specified limits. Please
consider the application note “Thermal Management in Surface-Mounted Resistor Applications” (www.vishay.com/doc?28844) for
information on the general nature of thermal resistance
TEMPERATURE COEFFICIENT AND RESISTANCE RANGE
TYPE / SIZE
TCR
TOLERANCE
±1%
± 50 ppm/K
± 0.5 %
MMA 0204 HT
± 25 ppm/K
± 0.5 %
Jumper
(2)
;
I
max.
= 3 A
≤
10 mΩ
±1%
(1)
RESISTANCE
47
Ω
to 100 kΩ
47
Ω
to 100 kΩ
47
Ω
to 100 kΩ
47
Ω
to 100 kΩ
0
Ω
E-SERIES
E24; E96
E24; E192
E24; E96
E24; E192
-
Notes
• Resistance ranges printed in bold are preferred TCR / tolerance combinations
(1)
For the approved IECQ-CECC resistance range, please refer to
www.vishay.com/doc?28945
(2)
The temperature coefficient of resistance (TCR) is not specified for 0
Ω
jumpers
PACKAGING
TYPE / SIZE
CODE
B3 = BL
MMA 0204 HT
B0
10 000
QUANTITY
3000
PACKAGING STYLE
Antistatic blister tape acc.
IEC 60286-3, Type 2a
WIDTH
PITCH
PACKAGING
DIMENSIONS
Ø 180 mm / 7"
8 mm
4 mm
Ø 330 mm / 13"
Revision: 11-Nov-2021
Document Number: 28780
2
For technical questions, contact:
melf@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
MMA 0204 HT Professional
www.vishay.com
DESCRIPTION
Production is strictly controlled and follows an extensive
set of instructions established for reproducibility. A
homogeneous film of metal alloy is deposited on a high
grade ceramic body (Al
2
O
3
) and conditioned to achieve the
desired temperature coefficient. Nickel plated steel
termination caps are firmly pressed on the metallised rods.
A special laser is used to achieve the target value by
smoothly cutting a helical groove in the resistive layer
without damaging the ceramics. The resistor elements are
covered by a protective coating designed for electrical,
mechanical and climatic protection. The terminations
receive a final pure matte tin on nickel plating. Four or five
color code rings designate the resistance value and
tolerance in accordance with
IEC 60062
(1)
.
The result of the determined production is verified by an
extensive testing procedure performed on 100 % of the
individual resistors. This includes pulse load screening and
additional non-linearity screening for the elimination of
products with a potential risk of early life failures according
to EN 140401-803, 2.1.2.2. Only accepted products are laid
directly into the blister tape in accordance with
IEC 60286-3, Type 2a
(1)
or bulk case in accordance with
IEC 60286-6
(2)
.
Vishay Beyschlag
The products do not contain any of the banned substances
as per IEC 62474, GADSL, or the SVHC list, see
www.vishay.com/how/leadfree.
Hence the products fully comply with the following
directives:
• 2000/53/EC End-of-Life Vehicle Directive (ELV) and
Annex II (ELV II)
• 2011/65/EU Restriction of the Use of Hazardous
Substances
Directive
(RoHS)
with
amendment
2015/863/EU
• 2012/19/EU Waste Electrical and Electronic Equipment
Directive (WEEE)
Vishay pursues the elimination of conflict minerals from its
supply chain, see the Conflict Minerals Policy at
www.vishay.com/doc?49037.
APPROVALS
Where applicable, the resistors are approved within the
IECQ-CECC Quality Assessment System for Electronic
Components to the detail specification
EN 140401-803
which refers to
EN 60115-1, EN 60115-8
and the variety of
environmental test procedures of the
IEC 60068
(1)
series.
Conformity is attested by the use of the
CECC
logo (
) as
the mark of conformity on the package label.
Vishay
Beyschlag
has
achieved
“Approval
of
Manufacture”
in accordance with
IECQ 03-1.
The release
certificate for
“Technology Approval Schedule”
in
accordance with
CECC 240001
based on
IECQ 03-3-1
is
granted for the Vishay Beyschlag manufacturing process.
The resistors are qualified according to AEC-Q200.
ASSEMBLY
The resistors are suitable for processing on automatic SMD
assembly systems. They are suitable for automatic
soldering using wave, reflow or vapor phase as shown in
IEC 61760-1
(1)
. The encapsulation is resistant to all
cleaning solvents commonly used in the electronics
industry, including alcohols, esters and aqueous solutions.
The suitability of conformal coatings, potting compounds
and their processes, if applied, shall be qualified by
appropriate means to ensure the long term stability of the
whole system.
The resistors are completely lead (Pb)-free, the pure matte
tin plating provides compatibility with lead (Pb)-free and
lead containing soldering processes. Solderability is
specified for 2 years after production or requalification,
however, excellent solderability is proven after extended
storage in excess of 10 years. The permitted storage time is
20 years. The immunity of the plating against tin whisker
growth has been proven under extensive testing.
RELATED PRODUCTS
A wider range of TCR, tolerance and resistance values, plus
the option of values from a different E series is available with
products approved to
EN 140401-803,
Version A, without
established reliability, nominal failure rate level E0 (Quality
factor
π
Q
= 3). See the datasheets:
• “Professional MELF Resistors”
(www.vishay.com/doc?28713)
• “Precision MELF Resistors”
(www.vishay.com/doc?28714)
• “High Precision MELF Resistor”
(www.vishay.com/doc?28715)
For products with superior pulse load capability, see the
datasheets:
• “High Pulse Load Carbon Film MINI-MELF Resistor”
(www.vishay.com/doc?28717)
• “High Pulse Load Carbon
(www.vishay.com/doc?28755)
Film
MELF
Resistor”
MATERIALS
Vishay acknowledges the following systems for the
regulation of hazardous substances:
• IEC 62474, Material Declaration for Products of and for the
Electrotechnical Industry, with the list of declarable
substances given therein
(2)
• The Global Automotive Declarable Substance List
(GADSL)
(3)
• The REACH regulation (1907/2006/EC) and the related list
of substances with very high concern (SVHC)
(4)
for its
supply chain
Notes
(1)
The quoted IEC standards are also released as EN standards with the same number and identical contents
(2)
The IEC 62474 list of declarable substances is maintained in a dedicated database, which is available at
http://std.iec.ch/iec62474
(3)
The Global Automotive Declarable Substance List (GADSL) is maintained by the American Chemistry Council and available at
www.gadsl.org
(4)
The SVHC list is maintained by the European Chemical Agency (ECHA) and available at
http://echa.europa.eu/candidate-list-table
Revision: 11-Nov-2021
Document Number: 28780
4
For technical questions, contact:
melf@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
微控制器 MCU
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
