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Epcos B59601 Manual

Ptc thermistors as limit temperature sensors
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PTC thermistors as
limit temperature sensors
SMD, EIA case sizes 0603 and 0805,
standard series
Series/Type:
B59601, B59602, B59603,
B59604, B59701
Date:
November 2011
© EPCOS AG 2011. Reproduction, publication and dissemination of this publication, enclosures hereto and the
information contained therein without EPCOS' prior express consent is prohibited.

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Summary of Contents for Epcos B59601

  • Page 1 SMD, EIA case sizes 0603 and 0805, standard series Series/Type: B59601, B59602, B59603, B59604, B59701 Date: November 2011 © EPCOS AG 2011. Reproduction, publication and dissemination of this publication, enclosures hereto and the information contained therein without EPCOS' prior express consent is prohibited.
  • Page 2 Sensors Limit temperature sensors, EIA sizes 0603 and 0805 Standard series Applications DC/DC converters Home appliances Dimmers Electronic ballasts Over-temperature protection of power components Secondary protection of battery packs SMPS Notebooks Features Fast and reliable response Suitable for reflow soldering only Compliant to RoHS directive 2002/95/EC UL approval to UL1434 for B59601A* (file number E69802) Lead-free tinned terminations...
  • Page 3 Sensors Limit temperature sensors, EIA sizes 0603 and 0805 Standard series Electrical specifications and ordering codes Case size 0603 ∆R Ordering code sense,1 (V ≤ V +10 °C) (@ 4.7 kΩ) sense,1 Ω °C kΩ EIA case size 0603, standard types ±50 75 ±5 B59601A0075A062...
  • Page 4 Sensors Limit temperature sensors, EIA sizes 0603 and 0805 Standard series Electrical specifications and ordering codes Case size 0603 and 0805 ∆R Ordering code sense (V ≤ V 5°C) +5°C) +15°C) sense,1 sense,1 sense,1 Ω °C kΩ kΩ kΩ EIA case size 0603, tight resistance tolerance types ±15 ≤...
  • Page 5 Sensors Limit temperature sensors, EIA sizes 0603 and 0805 Standard series Dimensional drawings in mm EIA case size 0603 Solder pad EIA case size 0805 Solder pad Recommended maximum dimensions (mm) Please read Cautions and warnings and Page 5 of 30 Important notes at the end of this document.
  • Page 6 Sensors Limit temperature sensors, EIA sizes 0603 and 0805 Standard series Characteristics (typical) for type A601 PTC resistance R versus PTC temperature T (measured at low signal voltage) Please read Cautions and warnings and Page 6 of 30 Important notes at the end of this document.
  • Page 7 Sensors Limit temperature sensors, EIA sizes 0603 and 0805 Standard series Characteristics (typical) for type A601 PTC resistance R versus PTC temperature T (measured at low signal voltage) Please read Cautions and warnings and Page 7 of 30 Important notes at the end of this document.
  • Page 8 Sensors Limit temperature sensors, EIA sizes 0603 and 0805 Standard series Characteristics (typical) for type A602 and A603 PTC resistance R versus PTC temperature T (measured at low signal voltage) Please read Cautions and warnings and Page 8 of 30 Important notes at the end of this document.
  • Page 9 Sensors Limit temperature sensors, EIA sizes 0603 and 0805 Standard series Characteristics (typical) for type A603 PTC resistance R versus PTC temperature T (measured at low signal voltage) Please read Cautions and warnings and Page 9 of 30 Important notes at the end of this document.
  • Page 10 Sensors Limit temperature sensors, EIA sizes 0603 and 0805 Standard series Characteristics (typical) for type A701 PTC resistance R versus PTC temperature T (measured at low signal voltage) Please read Cautions and warnings and Page 10 of 30 Important notes at the end of this document.
  • Page 11 Sensors Limit temperature sensors, EIA sizes 0603 and 0805 Standard series Characteristics (typical) for type A701 PTC resistance R versus PTC temperature T (measured at low signal voltage) Please read Cautions and warnings and Page 11 of 30 Important notes at the end of this document.
  • Page 12 Sensors Limit temperature sensors, EIA sizes 0603 and 0805 Standard series Reliability data ∆R Test Standard Test conditions Electrical endurance, IEC 60738-1 Room temperature: I < 20% smax cycling Number of cycles: 100 Electrical endurance, IEC 60738-1 Storage at V <...
  • Page 13 Sensors Limit temperature sensors, EIA sizes 0603 and 0805 Standard series Taping of SMD thermistors Blister tape (to IEC 60286-3) Figure 1 Dimension 8-mm tape 16-mm tape Tolerance 24-mm tape Tolerance (mm) (mm) (mm) 1.50 1.50 + 0.10/ 0 1.50 + 0.10 1.00 1.50...
  • Page 14 Sensors Limit temperature sensors, EIA sizes 0603 and 0805 Standard series Part orientation in tape pocket for blister tape For chip thermistors case sizes 0805 and 1210 Figure 2 Additional taping information For chip thermistors case sizes 0805 and 1210 Reel material Polystyrol (PS) Tape material...
  • Page 15 Sensors Limit temperature sensors, EIA sizes 0603 and 0805 Standard series Cardboard tape (to IEC 60286-3) Figure 3 Dimensions Tolerance 8-mm tape (mm) (mm) Case size 0402 0603 ±0.2 0.95 ±0.2 1.15 ±0.05 0.95 0.75 max. +0.1/ 0 ±0.1 ±0.05 ±0.1 ±0.3 ±0.1...
  • Page 16 Sensors Limit temperature sensors, EIA sizes 0603 and 0805 Standard series Part orientation in tape pocket for cardboard tape For chip thermistors case sizes 0402 and 0603 Figure 4 Additional taping information Reel material Polystyrol (PS) Tape material Cardboard Tape break force min.
  • Page 17 Sensors Limit temperature sensors, EIA sizes 0603 and 0805 Standard series Reel dimensions 180-mm reel with 8-mm tape Figure 5 Dimension 180-mm reel 2/+0 8.4 +1.5/ 0 14.4 max. 330-mm reel with 16-mm tape Figure 6 Dimension 330-mm reel 2/+0 16.4 +2.0/ 0 22.4 max.
  • Page 18 Sensors Limit temperature sensors, EIA sizes 0603 and 0805 Standard series Mounting instructions Soldering Leaded PTC thermistors Leaded PTC thermistors follow the solderability requirements of IEC 60068-2-20. During soldering, care must be taken that the thermistors are not damaged by excessive heat. The following maximum temperatures, maximum time spans and minimum distances have to be observed: Solder containing lead...
  • Page 19 Sensors Limit temperature sensors, EIA sizes 0603 and 0805 Standard series 1.3.2 Test methods for wetting and resistance to soldering heat a) Solder bath method according to IEC 60068-2-58 Applicable for SMD components with wire or tag terminations. In case the SMD-component does not have a completely closed housing, only the wires or tags may be immersed into the solder bath.
  • Page 20 Sensors Limit temperature sensors, EIA sizes 0603 and 0805 Standard series 1.3.3 Placement and orientation of SMDs on PCB a) Component placement It is recommended that the PC board should be held by means of some adequate supporting pins such as shown left to prevent the SMDs from being damaged or cracked.
  • Page 21 Sensors Limit temperature sensors, EIA sizes 0603 and 0805 Standard series Soldering profiles 1.4.1 Wave soldering Recommended temperature profile for wave soldering following IEC 61760-1. Applicable for lead- ed PTCs and selected SMD PTCs (case sizes 3225 and 4032 as well as superior series for case sizes 0402, 0603 and 0805 limit temperature sensors).
  • Page 22 Sensors Limit temperature sensors, EIA sizes 0603 and 0805 Standard series 1.4.2 Reflow soldering Recommended temperature characteristic for reflow soldering following JEDEC J-STD-020D Profile feature Sn-Pb eutectic assembly Pb-free assembly Preheat and soak 100 °C 150 °C - Temperature min smin 150 °C 200 °C...
  • Page 23 Solder joint profiles for PTC theristors with chrome/nickel/tin terminations Storage of PTC thermistors PTC thermistors should be soldered after shipment from EPCOS within the time specified: Use thermistor within the following period after delivery: Through-hole devices (housed and leaded PTCs)
  • Page 24 Sensors Limit temperature sensors, EIA sizes 0603 and 0805 Standard series Do not store SMDs where they are exposed to heat or direct sunlight. Otherwise, the packing ma- terial may be deformed or SMDs may stick together, causing problems during mounting. After opening the factory seals, such as polyvinyl-sealed packages, it is recommended to use the components as soon as possible.
  • Page 25 Sensors Limit temperature sensors, EIA sizes 0603 and 0805 Standard series When subjecting leads to mechanical stress, the following should be observed: Tensile stress on leads During mounting and operation tensile forces on the leads are to be avoided. Bending of leads Bending of the leads directly on the thermistor body is not permissible.
  • Page 26 Standard series Cautions and warnings General EPCOS thermistors are designed for specific applications and should not be used for purposes not identified in our specifications, application notes and data books unless otherwise agreed with EPCOS during the design-in-phase. Ensure suitability of thermistor through reliability testing during the design-in phase. The ther- mistors should be evaluated taking into consideration worst-case conditions.
  • Page 27 Sensors Limit temperature sensors, EIA sizes 0603 and 0805 Standard series Mounting Electrode must not be scratched before/during/after the mounting process. Contacts and housing used for assembly with thermistor have to be clean before mounting. Es- pecially grease or oil must be removed. When PTC thermistors are encapsulated with sealing material, the precautions given in chapter "Mounting instructions", "Sealing and potting"...
  • Page 28 Sensors Limit temperature sensors, EIA sizes 0603 and 0805 Standard series Symbols and terms Area Heat capacity Frequency Current Maximum current Rated current PTC current Residual currrent Residual currrent in oil (for level sensors) r,oil Residual currrent in air (for level sensors) r,air Root-mean-square value of current Switching current...
  • Page 29 Sensors Limit temperature sensors, EIA sizes 0603 and 0805 Standard series Settling time (for level sensors) Rated temperature Sensing temperature sense Operating temperature PTC temperature Response time Reference temperature Temperature at minimum resistance Rmin Switching time Surface temperature surf Upper category temperature V or V Voltage (with subscript only for distinction from volume) Root-mean-square value of voltage...
  • Page 30 For these reasons, it is always ultimately incum- bent on the customer to check and decide whether an EPCOS product with the properties de- scribed in the product specification is suitable for use in a particular customer application.

This manual is also suitable for:

B59602B59603B59604B59701