MRS16 ETC1 | Alldatasheet

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Technical content

Maintenance types (not for new designs) File under BCcomponents, BC08

2000 Sep 06

MRS16; MRS25 Professional leaded resistors

2000 Sep 06 2

BCcomponents Maintenance types (not for new designs) Professional leaded resistors MRS16; MRS25

FEATURES

  • Professional resistors in small outlines
  • Low noise.

APPLICATIONS

  • All general purpose applications.

DESCRIPTION

A homogeneous film of metal alloy is deposited on a high grade ceramic body. After a helical groove has been cut in the resistive layer, tinned connecting wires of electrolytic copper are welded to the end-caps. The resistors are coated with lacquer which provides electrical, mechanical, and climatic protection. Four or five colour code rings designate the resistance value and tolerance according to IEC 60 062. Suitable replacements for MRS16 and MRS25 are the MBA 0204 and MBB 0207 professional. QUICK REFERENCE DATA Resistance range 4,99 Ω to 1 MΩ 1 Ω to 10 MΩ Resistance tolerance and series ±1%; E24/E96 series Maximum dissipation at Tamb =7 0 °C 0,4 W 0,6 W Thermal resistance (Rth) 170 K/W 150 K/W Temperature coefficient ±50 ppm/K Maximum permissible voltage (DC or RMS) 200 V 350 V Basic specifications IEC 60115-1 and 60115-2 Climatic category (IEC 60068) 55/155/56 Max. resistance change for resistance range, ∆R/R max., after: load: climatic tests: soldering: short time overload ±(0,25% + 0,05 Ω) ±( 0,25% + 0,05 Ω)

2000 Sep 06 3

BCcomponents Maintenance types (not for new designs) Professional leaded resistors MRS16; MRS25

ORDERING INFORMATION

Numeric Ordering code (12NC)

  • The resistors have a 12-digit ordering code starting with 2322 15.
  • The subsequent 2 digits indicate the resistor type and packaging; see Table 1.
  • The remaining 4 digits indicate the resistance value: – The first 3 digits indicate the resistance value. – The last digit indicates the resistance decade in accordance with Table 2. Table 1 Ordering code indicating resistor type and packaging TY P E BANDOLIER IN AMMOPACK BANDOLIER ON REEL 1000 units 5000 units 5000 units Table 2 Last digit of 12NC indicating resistance decade RESISTANCE DECADE LAST DIGIT 1t o9 , 7 6Ω 8 10 to 97,6 Ω 9 100 to 976 Ω 1 1t o9 , 7 6kΩ 2 10 to 97,6 kΩ 3 100 to 976 kΩ 4 1t o9 , 7 6MΩ 5

10 MΩ 6

The ordering code of a MRS16 resistor, value 750 Ω, on a bandolier of 1000 units in ammopack is: 2322 157 17501.

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BCcomponents Maintenance types (not for new designs) Professional leaded resistors MRS16; MRS25 MECHANICAL DATA Outlines Table 3 Leaded resistor types, mass and relevant physical dimensions; see Fig.2 Note 1. Due to the various sources of production, delivery of specific versions (A or B) of MRS 16 cannot be guaranteed. TY P E VER SI O N Dmax (mm) Lmax (mm) dnom (mm) Mmin (mm) MASS (mg) MRS 16 A 1.6 3.6 0.5 5.0 125 B 1.9 3.4 0.5 5.0 125 MRS 25 − 2.5 6.5 0.6 10.0 700 For dimensions see Table 3. Fig.2 Outline. L D d M