UMA02040G1672CA300 - Vishay Presicion Group

High Precision MINI-MELF Resistor

www.vishay.com For technical questions, contact: melf@vishay.com Document Number: 28715

50 Revision: 20-Feb-12

UMA 0204

Vishay Beyschlag

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 high precision thin film MINI-MELF resistors

combine the proven reliability of professional MELF products

with a most advanced level of precision and stability first

achieved with axial thin film high precision resistors. This

unique combination makes the product perfectly suited for all

applications with outstanding requirements towards reliable

precision and stability.

FEATURES

Approved to EN 140401-803

Most advanced thin film technology

Superior overall stability

TCR down to ± 5 ppm/K

High precision tolerance down to 0.02 %

Matte Sn termination on Ni barrier layer

Compliant to RoHS Directive 2011/65/EU

APPLICATIONS

Measuring and calibration equipment

Industrial process control systems

Space and aircraft electronics

Notes

• 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.

(1) The power dissipation on the resistor generates a temperature rise against the local ambient, depending on the heatflow support of the

printed-circuit board (thermal resistance). The rated dissipation applies only if the permitted film temperature is not exceeded.

METRIC SIZE

DIN 0204

CECC RC 3715M

TECHNICAL SPECIFICATIONS

DESCRIPTION UMA 0204

Metric CECC size RC 3715M

Resistance range 22  to 332 k

Resistance tolerance ± 0.25 %; ± 0.1 %; ± 0.05 %; ± 0.02 %

Temperature coefficient ± 15 ppm/K; ± 10 ppm/K; ± 5 ppm/K

Operation mode Precision Standard

Rated dissipation, P70 (1) 0.07 W 0.25 W

Operating voltage, Umax. AC/DC 200 V

Permissible film temperature,



F max. 85 °C 125 °C

Operating temperature range - 10 °C to 85 °C - 55 °C to 125 °C

Max. resistance change at P70 for resistance range,

R/R max., after: 22 to 332 k

1000 h  0.02 %  0.05 %

8000 h  0.05 %  0.1 %

225 000 h  0.15 %  0.3 %

Permissible voltage against ambient (insulation):

1 min; Uins 300 V

Continuous 75 V

Failure rate: FITobserved  0.1 x 10-9/h

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High Precision MINI-MELF Resistor Vishay Beyschlag

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DIMENSIONS

Note

• Color code marking is applied according to IEC 60062 (3) in five bands. Each color band appears as a single solid line, voids are permissible

if at least 2/3 of the band is visible from each radial angle of view. The last color band for tolerance is approximately 50 % wider than the other

bands. An interrupted band between the 4th and 5th full band indicates the temperature coefficient (orange = TC15, blue = TC10, violett = TC05).

PATTERN STYLES FOR MELF RESISTORS

Note

• The given solder pad dimensions reflect the considerations for board design and assembly as outlined e.g. in standards IEC 61188-5-x, or in

publication IPC-7351. They do not guarantee any supposed thermal properties, however, they will be found adequate for most general

applications.

DIMENSIONS AND MASS

TYPE L

(mm)

L1 min.

(mm)

MASS

(mg)

UMA 0204 3.6 + 0/- 0.2 1.4 + 0/- 0.1 1.8 D + 0/- 0.15 0.8 ± 0.1 22

RECOMMENDED SOLDER PAD DIMENSIONS

TYPE

WAVE SOLDERING REFLOW SOLDERING

(mm)

UMA 0204 1.5 1.5 1.8 4.5 1.7 1.2 1.6 4.1

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52 Revision: 20-Feb-12

UMA 0204

Vishay Beyschlag High Precision MINI-MELF Resistor

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Notes

• Products can be ordered using either the PART NUMBER or the PRODUCT DESCRIPTION.

• The standard version includes approval to EN 140401-803, “Version A”, for selected ranges.

Notes

• Resistance values to be selected from E192 series, for other values please contact the factory.

• TCR 10 and TCR 05 is specified over the temperature range from - 10 °C to + 85 °C.

• Approval to EN 140401-803, “Version A” is achieved for TCR 10 with 0.25 % and 0.1 %

PART NUMBER AND PRODUCT DESCRIPTION

Part Number: UMA02040G4641AA300

UMA02040G4641AA300

TYPE/SIZE VERSION TCR RESISTANCE TOLERANCE

PACK AGI NG

UMA0204 0 = Standard G = ± 5 ppm/K

F = ± 10 ppm/K

E = ± 15 ppm/K

3 digit value

1 digit multiplier

Multiplier

9 = *10-1

0 = *100

1 = *101

2 = *102

3 = *103

H = ± 0.02 %

A = ± 0.05 %

B = ± 0.1 %

C = ± 0.25 %

Product Description: UMA 0204 - 05 0.05 % AL 4K64

UMA 0204 - 05 0.05 % AL 4K64

TYPE SIZE TCR TOLERANCE PACKAGING RESISTANCE

UMA 0204 ± 05 ppm/K

± 10 ppm/K

± 15 ppm/K

± 0.02 %

± 0.05 %

± 0.1 %

± 0.25 %

4K64 = 4.64 k

PACKAGING

TYPE CODE QUANTITY CARRIER TAPE WIDTH PITCH REEL DIAMETER

UMA 0204

AU 100

Antistatic blister tape

acc. IEC 60286-3

type II

8 mm 4 mm

Box

A1 1000 180 mm/7"

A3 = AL 3000

A0 10 000 330 mm/13"

TEMPERATURE COEFFICIENT AND RESISTANCE RANGE

DESCRIPTION RESISTANCE

TCR TOLERANCE UMA 0204

15 ppm/K 0.05 % 47  to 332 k

10 ppm/K

0.25 % 22  to 332 k

0.1 % 43  to 332 k

0.05 % 75  to 221 k

05 ppm/K

0.25 % 33  to 221 k

0.1 % 56  to 221 k

0.05 % 75  to 150 k

0.02 % 75  to 100 k

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High Precision MINI-MELF Resistor Vishay Beyschlag

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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 (Al2O3) and conditioned to achieve the desired

temperature stability. Nickel plated steel terminations are

firmly pressed on the metallised rods. A special laser is used

to achieve the target value by smoothly cutting in the

resistive layer without damaging the ceramics. A further

conditioning is applied in order to stabilise the trimming

result. The resistor elements are covered by a protective

coating designed for electrical, mechanical and climatic

protection. The terminations receive a final pure tin on nickel

plating. Five colour rings designate the resistance value and

tolerance in accordance with IEC 60062 (3). Additional colour

dots near the fourth ring are used to identify the temperature

coefficient.

The result of the determined production is verified by

an extensive testing procedure under strict temperature

control, performed on 100 % of the individual resistors. This

includes pulse load screening (for R  10 ) and additional

non-linearity screening (for R  30 ) 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 antistatic blister tape in accordance with

IEC 60286-3, Type II (3).

ASSEMBLY

The resistors are suitable for processing on automatic SMD

assembly systems. They are suitable for automatic soldering

using wave, 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.

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 Vehicle life 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.

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

Manufacturer” in accordance with IEC QC 001002-3,

clause 2. The release certificate for “Technology Approval

Schedule” in accordance with CECC 240001 based on

IEC QC 001002-3, clause 6 is granted for the

Vishay BEYSCHLAG manufacturing process.

category

temperature

85 C; 1000 h

± (0.01 %

+1 m



) ± (0.05 %

+1 m



)± (0.1 %

+1 m



)

125 C; 1000 h

± (0.05 %

+1 m



) ± (0.1 %

+1 m



)

± (0.15 %

+1 m



)

4.24 78 (Cab) Damp heat,

steady state

(40 ± 2) C; 56 days;

(93 ± 3) % RH

± (0.03 %

+1 m



) ± (0.05 %

+1 m



)± (0.1 %

+1 m



)

4.39 67 (Cy)

Damp heat,

steady state,

accelerated

(85 ±2) C;

(85 ± 5) % RH;

U= 0.3 x 100 V;

1000 h

± (0.1 %

+1 m) ± (0.25 %

+1 m)

P70 x R

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UMA 0204

Vishay Beyschlag High Precision MINI-MELF Resistor

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4.23 Climatic sequence:

4.23.2 2 (Bb) dry heat UCT; 16 h

4.23.3 30 (Db) damp heat, cyclic 55 C; 24 h; 90 % RH;

1 cycle

4.23.4 1 (Ab) cold LCT C; 2 h

4.23.5 13 (M) low air pressure 8.5 kPa; 2 h; (25 ± 10) C

4.23.6 30 (Db) damp heat, cyclic 55 C; 24 h; 90 % RH;

5 cycles

4.23.7 - DC load U= Umax.; 1 min.

LCT = - 10 C; UCT = 85 C



(0.03 %

+1 m



) ± (0.05 %

+1 m



)

LCT = - 55 C; UCT = 125 C- -

± (0.1 %

+1 m



)

- 1 (Ab) Cold - 55 C; 2 h ± (0.02 %

+1 m)

4.19 14 (Na) Rapid change of

temperature

30 min at LCT;

30 min at UCT;

LCT = - 10 C;

UCT = 85 C

5cycles

± (0.01 %

+1m



) ± (0.02 %

+1m



)

1000 cycles

± (0.05 %

+1m



) ± (0.05 %

+1m



)

LCT = - 55 C; UCT = 125 C

5cycles - -

± (0.025 %

+1m



)

1000 cycles - -

± (0.1 %

+1m



)

4.13 -

Short time overload;

precision operation

mode

U= 2.5 x

2 x Umax.;

5 s

± (0.005 %

+1 m



)

± (0.01 %

+1 m)

Short time overload;

standard operation

mode

U= 2.5 x 

2 x Umax.;

5 s

± (0.01 %

+1 m)

4.27 -

Single pulse high

voltage overload;

standard mode

severity no. 4:

U= 10 x 

2xUmax.;

10 pulses 10 s/700 s

± (0.25 %

+5 m) (1)

4.37 -

Periodic electric

overload;

standard mode

2 x Umax.;

0.1 s on; 2.5 s off; 1000 cycles

± (0.5 %

+5 m) (1)

4.22 6 (Fc) Vibration

Endurance by sweeping;

10 Hz to 2000 Hz;

no resonance; amplitude

 1.5 mm or

 200 m/s2; 7.5 h

± (0.01 %

+1 m)

4.40 -

Electrostatic

discharge

(Human Body

Model)

IEC 61340-3-1 (3);

3 pos. + 3 neg. discharges

UMA 0204: 2 kV

± (0.5 %

+ 50 m) (1)

TEST PROCEDURES AND REQUIREMENTS

60115-1

CLAUSE

IEC

60068-2 (3)

TEST

METHOD

TEST PROCEDURE

REQUIREMENTS

PERMISSIBLE CHANGE (R)

STABILITY

CLASS 0.05

OR BETTER

STABILITY

CLASS 0.1

OR BETTER

STABILITY

CLASS 0.25

OR BETTER

Stability for product types:

UMA 0204 100  to 100 k43  to 221 k22  to 332 k

P70 x R

15 x P70 x R

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High Precision MINI-MELF Resistor Vishay Beyschlag

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Notes

(1) The pulse load stability of professional MELF resistors applies also to high precision resistors. However, severe pulse loads are likely to

jeopardize high precision stability requirements.

(2) Wave soldering is not recommended.

(3) The quoted IEC standards are also released as EN standards with the same number and identical contents.

4.17.2 58 (Td) Solderability

Solder bath method;

SnPb40;

non-activated flux;

(215 ±3) C; (3 ± 0.3) s

Good tinning ( 95 % covered); no visible damage

Solder bath method;

SnAg3Cu0.5 or SnAg3.5;

non-activated flux;

(235 ± 3) C; (2 ± 0.2) s

Good tinning ( 95 % covered); no visible damage

4.18.2 58 (Td) Resistance to

soldering heat

Solder bath method;

(260 ± 5) C; (10 ± 1) s Note (2)

± (0.05 %

+10m



)

Reflow method 2

(IR/forced gas convention)

(260 ± 5) C; (10 ± 1) s

± (0.01 %

+1m



)

± (0.02 %

+1m)

4.29 45 (XA) Component solvent

resistance

Isopropyl alcohol; 50 C;

method 2 No visible damage

4.30 45 (XA) Solvent resistance

of marking

Isopropyl alcohol; 50 C;

method 1, toothbrush Marking legible; no visible damage

4.32 21 (Ue3) Shear (adhesion) 45 N No visible damage

4.33 21 (Ue1) Substrate bending Depth 2 mm, 3 times No visible damage, no open circuit in bent position

± (0.02 %

+ 10 m)

± (0.05 %

+10m



)

4.7 - Voltage proof URMS = Uins; 60 s No flashover or breakdown

4.35 - Flammability

IEC 60 695-11-5 (3),

needle flame test;

10 s

No burning after 30 s

TEST PROCEDURES AND REQUIREMENTS

60115-1

CLAUSE

IEC

60068-2 (3)

TEST

METHOD

TEST PROCEDURE

REQUIREMENTS

PERMISSIBLE CHANGE (R)

STABILITY

CLASS 0.05

OR BETTER

STABILITY

CLASS 0.1

OR BETTER

STABILITY

CLASS 0.25

OR BETTER

Stability for product types:

UMA 0204 100  to 100 k43  to 221 k22  to 332 k

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UMA 0204

Vishay Beyschlag High Precision MINI-MELF Resistor

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HISTORICAL 12NC INFORMATION

The resistors had a 12-digit numeric code starting with

2312.

The subsequent 4 digits indicated the resistor type,

specification and packaging; see the 12NC table.

The remaining 4 digits indicated the resistance value:

- The first 3 digits indicated the resistance value.

- The last digit indicated the resistance decade in

accordance with the 12NC Indicating Resistance Decade

table.

Last Digit of 12NC Indicating Resistance Decade

Historical 12NC Example

The 12NC of an UMA 0204 resistor, value 4.75 k and

TCR 05 with ± 0.05 % tolerance, supplied in antistatic blister

tape of 3000 units per reel was: 2312 113 44752.

RESISTANCE DECADE LAST DIGIT

10 to 99.9 9

100 to 999 1

1to9.99k2

10 to 99.9 k3

100 to 999 k4

HISTORICAL 12NC - Resistor type and packaging

DESCRIPTION

2312 ... .....

ANTISTATIC BLISTER TAPE ANTISTATIC BLISTER TAPE ON REEL

TYPE TCR TOL. AU

100 units

1000 units

3000 units

10 000 units

UMA 0204

± 15 ppm/K

± 0.05 % 101 4.... 106 4.... 111 4.... 116 4....

Note (1) 101 91... 106 91... 111 91... 116 91...

± 10 ppm/K

± 0.25 % 102 2.... 107 2.... 112 2.... 117 2....

± 0.1 % 102 3.... 107 3.... 112 3.... 117 3....

± 0.05 % 102 4.... 107 4.... 112 4.... 117 4....

Note (1) 102 91... 107 91... 112 91... 117 91...

± 5 ppm/K

± 0.25 % 103 2.... 108 2.... 113 2.... 118 2....

± 0.1 % 103 3.... 108 3.... 113 3.... 118 3....

± 0.05 % 103 4.... 108 4.... 113 4.... 118 4....

± 0.02 % 103 6.... 108 6.... 113 6.... 118 6....

Note (1) 103 91... 108 91... 113 91... 118 91...

Legal Disclaimer Notice

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Revision: 12-Mar-12 1Document Number: 91000

Disclaimer

ALL PRODUCT, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE TO IMPROVE

RELIABILITY, FUNCTION OR DESIGN OR OTHERWISE.

Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively,

“Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained in any datasheet or in any other

disclosure relating to any product.

Vishay makes no warranty, representation or guarantee regarding the suitability of the products for any particular purpose or

the continuing production of any product. To the maximum extent permitted by applicable law, Vishay disclaims (i) any and all

liability arising out of the application or use of any product, (ii) any and all liability, including without limitation special,

consequential or incidental damages, and (iii) any and all implied warranties, including warranties of fitness for particular

purpose, non-infringement and merchantability.

Statements regarding the suitability of products for certain types of applications are based on Vishay’s knowledge of typical

requirements that are often placed on Vishay products in generic applications. Such statements are not binding statements

about the suitability of products for a particular application. It is the customer’s responsibility to validate that a particular

product with the properties described in the product specification is suitable for use in a particular application. Parameters

provided in datasheets and/or specifications may vary in different applications and performance may vary over time. All

operating parameters, including typical parameters, must be validated for each customer application by the customer’s

technical experts. Product specifications do not expand or otherwise modify Vishay’s terms and conditions of purchase,

including but not limited to the warranty expressed therein.

Except as expressly indicated in writing, Vishay products are not designed for use in medical, life-saving, or life-sustaining

applications or for any other application in which the failure of the Vishay product could result in personal injury or death.

Customers using or selling Vishay products not expressly indicated for use in such applications do so at their own risk and agree

to fully indemnify and hold Vishay and its distributors harmless from and against any and all claims, liabilities, expenses and

damages arising or resulting in connection with such use or sale, including attorneys fees, even if such claim alleges that Vishay

or its distributor was negligent regarding the design or manufacture of the part. Please contact authorized Vishay personnel to

obtain written terms and conditions regarding products designed for such applications.

No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document or by

any conduct of Vishay. Product names and markings noted herein may be trademarks of their respective owners.

Material Category Policy

Vishay Intertechnology, Inc. hereby certifies that all its products that are identified as RoHS-Compliant fulfill the

definitions and restrictions defined under Directive 2011/65/EU of The European Parliament and of the Council

of June 8, 2011 on the restriction of the use of certain hazardous substances in electrical and electronic equipment

(EEE) - recast, unless otherwise specified as non-compliant.

Please note that some Vishay documentation may still make reference to RoHS Directive 2002/95/EC. We confirm that

all the products identified as being compliant to Directive 2002/95/EC conform to Directive 2011/65/EU.