UMA 0204, UMB 0207
www.vishay.com
Vishay Beyschlag
Ultra Precision Thin Film MELF Resistors
FEATURES
• Most advanced thin film technology
• Long term stability down to 0.02 %
• TCR down to ± 5 ppm/K
• High precision tolerance down to ± 0.02 %
• Operating voltage 350 V for UMB 0207
• Material categorization:
For definitions of compliance please see
www.vishay.com/doc?99912
UMA 0204 and UMB 0207 ultra precision thin film MELF
resistors combine the proven reliability of precision MELF
products with the most advanced level of precision and
stability first achieved with axial thin film precision resistors.
This unique combination makes the product perfectly suited
for all applications with outstanding requirements towards
reliable precision and stability.
APPLICATIONS
• Measuring and calibration equipment
• Industrial process control systems
• Space and aircraft electronics
• Medical equipment
TECHNICAL SPECIFICATIONS
DESCRIPTION
DIN size
Metric CECC size
Resistance range
Resistance tolerance
Temperature coefficient
Rated dissipation,
P
70 (1)
Operating voltage,
U
max.
AC
RMS
or DC
Permissible film temperature,
max. (1)
Operating temperature range
Permissible voltage against ambient (insulation):
1 min;
U
ins
Continuous
Failure rate: FIT
observed
Note
(1)
Please refer to APPLICATION INFORMATION below.
300 V
75 V
0.1
x 10
9
/h
500 V
75 V
0.25 W
200 V
125 °C
-55 °C to 125 °C
UMA 0204
0204
RC 3715M
22
to 332 k
UMB 0207
0207
RC 6123M
100
to 390 k
± 0.25 %; ± 0.1 %; ± 0.05 %; ± 0.02 %
± 15 ppm/K; ± 10 ppm/K; ± 5 ppm/K
0.4 W
350 V
Revision: 27-Mar-14
Document Number: 28715
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
UMA 0204, UMB 0207
www.vishay.com
APPLICATION INFORMATION
The power dissipation on the resistor generates a temperature rise against the local ambient, depending on the heat flow
support of the printed-circuit board (thermal resistance). The rated dissipation applies only if the permitted film temperature is
not exceeded. Furthermore a high level of ambient temperature or of power dissipation may raise the temperature of the solder
joint, hence special solder alloys or board materials may be required to maintain the reliability of the assembly.
These resistors do not feature a lifetime limitation when operated within the limits of rated dissipation, permissible operating
voltage and permissible film temperature. However, the resistance typically increases due to the resistor’s film temperature over
operating time, generally known as drift. The drift may exceed the stability requirements of an individual application circuit and
thereby limits the functional lifetime.
Vishay Beyschlag
MAXIMUM RESISTANCE AT RATED DISSIPATION
Operation mode
Rated dissipation,
P
70
UMA 0204
UMB 0207
Precision
0.07 W
0.11 W
85 °C
Standard
0.25 W
0.4 W
125 °C
Applied maximum film temperature,
F max.
Max. resistance change at rated dissipation
|R/R max.|, after:
1000 h
8000 h
225 000 h
0.02 %
0.05 %
0.15 %
0.05 %
0.1 %
0.3 %
TEMPERATURE COEFFICIENT AND RESISTANCE RANGE
TYPE
TCR
± 15 ppm/K
TOLERANCE
±0.05 %
±0.25 %
± 10 ppm/K
UMA 0204
±0.1 %
± 0.05 %
±0.25 %
± 5 ppm/K
±0.1 %
± 0.05 %
± 0.02 %
± 15 ppm/K
±0.05 %
±0.25 %
± 10 ppm/K
UMB 0207
±0.1 %
± 0.05 %
±0.25 %
± 5 ppm/K
±0.1 %
± 0.05 %
± 0.02 %
RESISTANCE RANGE
47
to 332 k
22
to 332 k
43
to 332 k
75
to 221 k
33
to 221 k
56
to 221 k
75
to 150 k
75
to 100 k
100
to 390 k
100
to 390 k
100
to 390 k
100
to 390 k
270
to 390 k
270
to 390 k
270
to 390 k
270
to 390 k
E192
E-SERIES
Notes
• TCR 10 ppm/K and TCR 05 ppm/K is specified over the temperature range from -10 °C to +85 °C.
• UMA 0204: Approval to EN 140401-803, “Version A” is achieved for TCR 10 ppm/K with 0.25 % and 0.1 %.
Revision: 27-Mar-14
Document Number: 28715
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
UMA 0204, UMB 0207
www.vishay.com
Vishay Beyschlag
PACKAGING
TYPE
CODE
AU
A1
UMA 0204
A3 = AL
A0
BU
B1
UMB 0207
B2
B7
2000
7000
3000
10 000
100
1000
Antistatic blister tape acc.
IEC 60286-3 type 2a
12 mm
4 mm
QUANTITY
100
1000
Antistatic blister tape acc.
IEC 60286-3 type 2a
8 mm
4 mm
CARRIER TAPE
WIDTH
PITCH
REEL DIAMETER
Box
180 mm/7"
330 mm/13"
Box
180 mm/7"
330 mm/13"
PART NUMBER AND PRODUCT DESCRIPTION
Part Number: UMB02070F5620AB200
U
M
B
0
2
VERSION
0
= Standard
0
7
0
TCR
F
5
6
2
0
A
B
2
0
0
MODEL/SIZE
UMA 0204
UMB 0207
RESISTANCE
3 digit value
1 digit multiplier
MULTIPLIER
9
= *10
-1
0
= *10
0
1
= *10
1
2
= *10
2
3
= *10
3
TOLERANCE
H
= ± 0.02 %
A
= ± 0.05 %
B
= ± 0.1 %
C
= ± 0.25 %
PACKAGING
AU
A1
A3
A0
BU
B1
B2
B7
G
= ± 5 ppm/K
F
= ± 10 ppm/K
E
= ± 15 ppm/K
Product Description: UMB 0207-10 0.05 % B2 562R
UMB
TYPE
UMA
UMB
0207
SIZE
0204
0207
10
TCR
±
5
ppm/K
±
10
ppm/K
±
15
ppm/K
0.05 %
TOLERANCE
±
0.02
%
±
0.05
%
±
0.1
%
±
0.25
%
B2
PACKAGING
AU
A1
AL
A0
BU
B1
B2
B7
562R
RESISTANCE
562R
= 562
Note
• Products can be ordered using either the PART NUMBER or the PRODUCT DESCRIPTION.
Revision: 27-Mar-14
Document Number: 28715
3
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
UMA 0204, UMB 0207
www.vishay.com
DESCRIPTION
Production is strictly controlled and follows an extensive set
of instructions established for reproducibility. A
homogeneous film of special 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 metallized 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 unique protective coating designed for
electrical, mechanical, and climatic protection. The
terminations receive a final pure tin on nickel plating. Five
color code rings designate the resistance value and
tolerance in accordance with
IEC 60062
(3)
.
The result of the determined production is verified by an
extensive testing procedure and optical inspection
performed on 100 % of the individual resistors. This includes
full screening for the elimination of products with a potential
risk of early field failures. Only accepted products are laid
directly into the blister tape in accordance with
IEC 60286-3, Type 2a
(3)
.
Vishay Beyschlag
All products comply with the
GADSL
(1)
and the
CEFIC-EECA-EICTA
(2)
list of legal restrictions on
hazardous substances. This includes full compliance 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)
• 2002/96/EC Waste Electrical and Electronic Equipment
Directive (WEEE)
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 140400
and the variety of
environmental test procedures of the
IEC 60068
(3)
series.
Vishay
Beyschlag
has
achieved
“Approval
of
Manufacturer”
in accordance with
IECQ 03-1.
The release
certificate for “Technology
Approval Schedule”
in
accordance with
CECC 240001
based on
IECQ 03-3
is
granted for the Vishay Beyschlag manufacturing process.
ASSEMBLY
The resistors are suitable for processing on automatic SMD
assembly systems. They are suitable for automatic
soldering using reflow or vapour phase as shown in
IEC 61760-1
(3)
.
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 resistors are completely lead (Pb)-free, the pure tin
plating provides compatibility with lead (Pb)-free soldering
processes. The immunity of the plating against tin whisker
growth has been proven under extensive testing.
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, if applied, shall be qualified by
appropriate means to ensure the long-term stability of the
whole system.
RELATED PRODUCTS
For products with a wider range of TCR, tolerance and
resistance, see the datasheets:
• “Professional Thin Film MELF Resistors”
(www.vishay.com/doc?28713)
• “Precision Thin Film MELF Resistors”
(www.vishay.com/doc?28714)
Notes
(1)
Global Automotive Declarable Substance List, see
www.gadsl.org.
(2)
CEFIC (European Chemical Industry Council), EECA (European Electronic Component Manufacturers Association).
(3)
The quoted IEC standards are also released as EN standards with the same number and identical contents.
Revision: 27-Mar-14
Document Number: 28715
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
UMA 0204, UMB 0207
www.vishay.com
FUNCTIONAL PERFORMANCE
Power Dissipation
P
Vishay Beyschlag
0.15
W
UMB 0207
UMA 0204
0.10
0.05
0
-50
0
50
70
100
°C
150
Ambient Temperature
ϑ
amb
Derating - Precision Operation Mode
Power Dissipation
P
0.4
W
0.3
UMB 0207
UMA 0204
0.2
0.1
0
-50
0
50
70
100
°C
150
Ambient Temperature
ϑ
amb
Derating - Standard Operation Mode
Current Noise
A
1
1
µV/ V
0.1
UMA 0204
UMB 0207
0.01
100
Ω
1 kΩ
10 kΩ
100 kΩ
1 MΩ
10 MΩ
Resistance Value
R
Current Noise -
A
1
In accordance with IEC 60195
Revision: 27-Mar-14
Document Number: 28715
5
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
