Susumu International U.S.A. -Specialist in Thin Film Technology-

Susumu International U.S.A.-Specialist in Thin Film Technology-

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      • 1.Basic knowledge of resistors
      • 2.Manufacturing methods and characteristics of thin film resistors
      • 3.Performance characteristics of thin film resistors
      • 4.High precision and high reliability
      • 5.Trimmable chip resistors and altering resistive values
      • 6.Application and recommended usage of thin film chip resistors
      • 7.Application and recommended usage of small high power thin film ship resistors
      • 8.Various methods of current sensing and advantage of current sensing resistors
      • 9.Application and recommended usage of current sensing resistors
    • Application Information
      • 1.Automotive
      • 2.FA/Robot
      • 3.Measuring Instrument/Medical Instrument
      • 4.Consumer equipment
    • Product Technical Report
      • Standard Specification for surface mount chip resistors

      • Recommended land patterns
      • Recommended reflow soldering profile
      • Dimensions of the packaging reel
      • Dimensions of the packaging tape
      • Standard Specification for High frequency surface mount components

      • Recommended reflow soldering profile
      • Dimensions of the packaging tape
      • Dimensions of the packaging reel
    • Technical FAQ
      • High Precision Thin Film Chip Resistors

      • ・Part numbering
      • ・Performance characteristics
      • ・Quality, reliability
      • ・Mounting, packaging
      • Current sensing chip resistors

      • ・Part numbering
      • ・Performance characteristics
      • ・Quality, reliability
      • ・Mounting, packaging
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  • Thin film surface mount resistors
  • RMA series

	

Thin film surface mount resistors
High-temperature operation Network resistors. (Up to 230 degree Celsius)
High temperature metal thin film resistor networks RMA series AEC-Q200 Compliant

  • Lead free
  • Halogen free
  • RoHS Compliance
  • High Reliability
  • High Precision
  • AEC-Q200 Compliant
  • High-temperature operation
  • High power
  • Anti-surge
  • Non-magnetic
  • High-Resolution Audio
  • Anti-sulfur
  • trimmable
  • leads

RMA series - Contents

PDF Catalogue
2 pages/

Recommended
land patterns

Recommended reflow soldering profile

Dimensions of
the packaging reel

Dimensions of
the packaging tape

RMA series - Features & Applications

Features

  • Conductive epoxy compatible chip resistor network
  • Relative resistance tolerance: ±0.01%, relative TCR: ±1ppm/℃
  • Operating temperature up to 230℃
  • RoHS compliant, 100% lead free (gold terminal)
  • Thin film structure enabling low noise and anti-sulfur

Applications

  • Automotive electronics
  • High temperature electronic devices
  • Downhole drilling
高温動作金属皮膜ネットワーク抵抗器

RMA series - Specifications

◆Part numbering system

◆Electrical Specification

Type Power
ratings
(85℃)
Resistance
range
(Ω)
Resistance tolerance (Code) Temperature coefficient of resistance (Code) Pakaging
quantity
(designation)
Absolute
tolerance
Relative tolerance Absolute
tolerance
Relative tolerance
Resistance
ratio
=1
1<
Resistance
ratio
≦100
100<
Resistance
ratio
≦500
Resistance
ratio
=1
1<
Resistance
ratio
≦100
100<
Resistance
ratio
≦500
RMA2012 0.05W/
Element
0.1W/
Package
100 ~<300 ±0.1%(B)
±0.5%(D)
±0.02%(P)
±0.05%(W)
±0.1%(B)
±0.5%(D)
±0.05%(W)
±0.1%(B)
±0.5%(D)
- ±10ppm/℃(N)
±25ppm/℃(P)
±1ppm/℃(X)
±2ppm/℃(W)
±5ppm/℃(V)
±2ppm/℃(W)
±5ppm/℃(V)
- tape & reel
(T&R)
10=1,000pcs
50=5,000pcs
300 ~ 100k ±0.05%(W)
±0.1%(B)
±0.5%(D)
±0.01%(L) ±0.02%(P)
±0.05%(W) ±0.1%(B)
±0.5%(D)
±0.05%(W)
±0.1%(B)
±0.5%(D)
±5ppm/℃(V)
±10ppm/℃(N)
±25ppm/℃(P)
±1ppm/℃(X)
±2ppm/℃(W)
±5ppm/℃(V)
±1ppm/℃(X)
±2ppm/℃(W)
±5ppm/℃(V)
±2ppm/℃(W)
±5ppm/℃(V)
RMA3216 0.063W/
Element
0.125W/
Package
100 ~<300 ±0.1%(B)
±0.5%(D)
±0.02%(P)
±0.05%(W)
±0.1%(B)
±0.5%(D)
±0.05%(W)
±0.1%(B)
±0.5%(D)
- ±10ppm/℃(N)
±25ppm/℃(P)
±1ppm/℃(X)
±2ppm/℃(W)
±5ppm/℃(V)
±2ppm/℃(W)
±5ppm/℃(V)
-
300 ~ 500k ±0.05%(W)
±0.1%(B)
±0.5%(D)
±0.01%(L) ±0.02%(P)
±0.05%(W) ±0.1%(B)
±0.5%(D)
±0.05%(W)
±0.1%(B)
±0.5%(D)
±5ppm/℃(V)
±10ppm/℃(N)
±25ppm/℃(P)
±1ppm/℃(X)
±2ppm/℃(W)
±5ppm/℃(V)
±1ppm/℃(X)
±2ppm/℃(W)
±5ppm/℃(V)
±2ppm/℃(W)
±5ppm/℃(V)
RMA3225 0.1W/
Element
0.2W/
Package
100 ~<300 ±0.1%(B)
±0.5%(D)
±0.02%(P)
±0.05%(W)
±0.1%(B)
±0.5%(D)
±0.05%(W)
±0.1%(B)
±0.5%(D)
- ±10ppm/℃(N)
±25ppm/℃(P)
±1ppm/℃(X)
±2ppm/℃(W)
±5ppm/℃(V)
±2ppm/℃(W)
±5ppm/℃(V)
-
300 ~ 500k ±0.05%(W)
±0.1%(B)
±0.5%(D)
±0.01%(L) ±0.02%(P)
±0.05%(W) ±0.1%(B)
±0.5%(D)
±0.05%(W)
±0.1%(B)
±0.5%(D)
±5ppm/℃(V)
±10ppm/℃(N)
±25ppm/℃(P)
±1ppm/℃(X)
±2ppm/℃(W)
±5ppm/℃(V)
±1ppm/℃(X)
±2ppm/℃(W)
±5ppm/℃(V)
±2ppm/℃(W)
±5ppm/℃(V)

◆Dimensions

Type Size
(inch)
L W t a b W1 W2
RMA2012 0805 2.0±0.2 1.25±0.2 0.45±0.1 0.5±0.2 0.6±0.2 0.4±0.2 0.35±0.2
RMA3216 1206 3.2±0.2 1.6±0.2 0.45±0.1 1.0±0.25 1.0±0.2 0.4±0.25 0.4±0.2
RMA3225 1209 3.2±0.2 2.5±0.2 0.45±0.1 1.0±0.25 1.0±0.2 0.4±0.25 0.6±0.2

(unit:mm)

◆Reliability specification

Standard
Test items Condition (test methods (MIL-PRF-55342/JIS C5201-1) absolute relative
Short time overload 2.5 x rated voltage*1, 5seconds ±(0.1%+0.01Ω) ±0.05%
Life (biased) 70℃, rated voltage, 90min on 30min off, 1000hours ±(0.1%+0.01Ω) ±0.05%
Temperature shock 85℃, 85%RH, 1/10 of rated power, 90min on 30min off, 1000hours ±(0.1%+0.01Ω) ±0.05%
High temperature exposure*2 -55℃(30min) ~ 125℃(30min) ±(0.1%+0.01Ω) ±0.05%
Resistance to soldering heat 155℃, no bias, 1000hours ±(0.1%+0.01Ω) ±0.05%

*1 Rated voltage is given by E=√ R x P E= rated voltage(V), R=nominal resistance value(Ω), P=rated power(W)
  If rated voltage exceeds maximum voltage /element, maximum voltage/element is the rated voltage.
*2 Please contact our sales office for details.

◆Reliability test data

○Biased life test

○High temperature high humidity (biased)

○Temperature shock

◆Derating Curve

Please feel free to contact us about products,
requesting documents and samples.

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New Product Information

Selection Guide

Product Catalogue

Product Videos

Products Category
  • Thin film surface mount resistors
    • Thin film surface mount resistors TOP
    • RG series (LL)
    • HRG series
    • MRG series
    • NRG series
    • PRG series
    • RG series
    • RGA series
    • RGT series
    • RM series
    • RMA series
    • RR series
    • RS series
    • RT series
    • URG series
    Resistors with radial leads
    • Resistors with radial leads TOP
    • LRG series
    Current sensing surface mount resistors
    • Current sensing surface mount resistors TOP
    • KRL series (long-side terminal)
    • KRL series (short-side terminal)
    • RL series (four terminal)
    • KRL(D/E)(long-side terminal)
    • KRL series (4 terminal type)
    • KRL(D/E)(short-side terminal)
    • PRL/RL series (long-side terminal)
    • RL series (short-side terminal)
    • SHR series
    • YJP series
    Power choke coils
    • Power choke coils TOP
    • PCMB series
    High freguency surface mount components
    • High freguency surface mount components TOP
    • ATS series
    • P*V series
    • PAT series
    • PAT series, W type
    • PCS series, HPT series
    • PS series
    Sample kits
    • Sample kits TOP
    • Sample kits

Contact

Thin film surface mount resistors Thin film surface mount resistors
High-precision and stable electrical characteristics, less the over-time drift.

Resistors with radial leads Resistors with radial leads
Radial lead type of thin film resistors has the tightest resistance tolerance and the smallest TCR.

Current sensing surface mount resistors Current sensing surface mount resistors
The current sensing resistors which cover a wide range of high-power and miniaturization needs.

Power choke coils Power choke coils
Power choke inductors are optimized for removing high-frequency noise in power supply.

High frequency surface mount components High frequency surface mount components
Excellent high-frequency characteristics, cover a wide frequency band with low noise.

Sample kits Sample kits
Sample kit with the same size and accuracy and different resistance.

  • New product information
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Global Network

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Technical Information

How to use chip resistors smartly

  • 1.Basic knowledge of resistors
  • 2.Manufacturing methods and characteristics of thin film resistors
  • 3.Performance characteristics of thin film resistors
  • 4.High precision and high reliability
  • 5.Trimmable chip resistors and altering resistive values
  • 6.Application and recommended usage of thin film chip resistors
  • 7.Application and recommended usage of small high power thin film ship resistors
  • 8.Various methods of current sensing and advantage of current sensing resistors
  • 9.Application and recommended usage of current sensing resistors

Application Information

  • 1.Automotive
  • 2.FA/Robot
  • 3.Measuring Instrument/Medical Instrument
  • 4.Consumer equipment

Standard Specification for surface mount chip resistors

  • Recommended land patterns
  • Recommended reflow soldering profile
  • Dimensions of the packaging reel
  • Dimensions of the packaging tape

Standard Specification for High frequency surface mount components

  • Recommended reflow soldering profile
  • Dimensions of the packaging tape
  • Dimensions of the packaging reel

Technical FAQ

  • High Precision Thin Film Chip Resistors
  • Current sensing chip resistors

Company Profile

About Susumu

  • Principle
  • Susumu Way
  • Profile
  • Locations
  • Organization
  • Company history

Activity Contents

  • Exhibition Activities

QC and Environmental Activities

  • Susumu's 「ISO Certified」
  • Susumu’s Policy on Conflict Minerals
  • Environmental Policy
  • The materials used in our chip resistors
  • Our commitment to RoHS compliance
  • Designation of lead free products

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Susumu International U.S.A. -Specialist in Thin Film Technology-
Susumu Thin Film Specialist and Innovator