PTC Thermistor
Lighting Applications
Series/Type: C1028-B0080-A053
Ordering code: B59028C1080B053
Date: 2012-06-20
Version: a
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Identification/Classification 1
(header 1 + top left bar):
PTC Thermistor
Identification/Classification 2
(header 2 + bottom left header bar):
Lighting Applications
Ordering code: (top right header bar) B59028C1080B053
Series/Type: (bottom right header bar) C1028-B0080-A053
Preliminary data (optional):
(if necessary)
Department: PPD PTC PD
Date: 2012-06-20
Version: a
PTC Thermistor B59028C1080B053
Lighting Applications C1028-B0080-A053
PPD PTC PD 2012-06-20
Please read Cautions and warnings and Page 2 of 6
Important notes at the end of this document.
Applications
Switching PTC Thermistor
Features
Long product life: stable performance throughout at least 30000 switching cycles
Mark with manufacturer’s logo and the type designation
RoHS compatible
Dimensional drawing in mm
General Technical Data
D
max
4
w
max
5.0
d 0.5 ±0.05
Max. operating voltage Vmax 550 V
rms
Rated voltage VR 500 V
rms
Rated resistance R25 3500 Ω
Resistance tolerance ∆R ±16 %
Rated current I
N
5 mA
Switching current I
S
10 mA
Maximal permissible switching current at Vmax ISmax 0.2 A
Residual current at 550V
rms
(typ.) for information only I
res
1 mA
Switching time at I
smax
and V
max
ts <1 s
Reference temperature (typ.) for information only Tref 80 °C
Operating temperature range (V= 0) Top(0) -25/+125
°C
Operating temperature range (V= Vmax) Top(Vmax) 0/60
°C
PTC Thermistor B59028C1080B053
Lighting Applications C1028-B0080-A053
PPD PTC PD 2012-06-20
Please read Cautions and warnings and Page 3 of 6
Important notes at the end of this document.
Taping:
acc to IEC 60286-2
Designation
Symbol
Nominal
size
[mm]
Tolerance
[mm]
Remarks
Lead Spacing
F 5,0 +0,6/-0,1
Pitch of holes
P0 12,7 ±0,3 ±1 mm/20 sprocket holes
Spacing hole center
P1 3,85 ±0,7
Slope of component
∆ h 0 ±2,0 measured at top of component
body
Slope of component
∆ p 0 ±1,3
Spacing hole center / bottom
edge of component
H 18. +2,0/-0 non- kinked lead version only
Spacing hole center / kink level
H0 16,0 ±0,5 kinked lead version only
Spacing hole center / upper edge
of component
H1 32,2 max.
carrier type width
W 18,0 ±0,5
hot adhesive tape width
W0 5,5 min. peel-off force ≥ 5 N
position of holes
W1 9,0 +0,75/-0,5
position of adhesive tape
W2 3,0 max.
hole diameter
D0 4,0 ±0,2
tape thickness
t 0,9 max. without wires
length of remaining wire after
removal of component
L 11,0 max.
unreeling direction
PTC Thermistor B59028C1080B053
Lighting Applications C1028-B0080-A053
PPD PTC PD 2012-06-20
Please read Cautions and warnings and Page 4 of 6
Important notes at the end of this document.
Cautions and warnings
General
• EPCOS thermistors are designed for specific applications and should not be used 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
thermistors should be evaluated taking into consideration worst-case conditions.
Storage
• Store thermistors only in original packaging. Do not open the package before storage.
• Storage conditions in original packaging: storage temperature -25°C… +45°C, relative humidity
<75% annual mean, maximum 95%, dew precipitation is inadmissible.
• Avoid contamination of thermistors surface during storage, handling and processing.
• Avoid storage of thermistor in harmful environment with effect on function on long-term operation
(examples given under operation precautions).
• Use thermistor within 6 months after delivery.
Handling
• PTCs must not be dropped. Chip-offs must not be caused during handling of PTCs.
• Components must not be touched with bare hands. Gloves are recommended.
• Avoid contamination of thermistor surface during handling.
Soldering
• Use rosin-type flux or non-activated flux.
• Insufficient preheating may cause ceramic cracks.
• Rapid cooling by dipping in solvent is not recommended.
• Compete removal of flux is recommended.
Mounting
• Electrode must not be scratched before/during/after in the mounting process.
• Contacts and housing used for assembly with thermistor have to be clean before mounting.
Especially grease or oil must be removed.
• When PTC thermistors are encapsulated with sealing material, the precautions given in chapter
“Mounting instructions”, “Sealing and potting” must be observed.
• When the thermistor is mounted, there must not be any foreign body between the electrode of the
thermistor and the clamping contact.
• The minimum force of the clamping contacts pressing against the PTC must be 10 N.
• During operation, the thermistor’s surface temperature can be very high. Ensure that adjacent
components are placed at a sufficient distance from the thermistor to allow for proper cooling at the
thermistors.
PTC Thermistor B59028C1080B053
Lighting Applications C1028-B0080-A053
PPD PTC PD 2012-06-20
Please read Cautions and warnings and Page 5 of 6
Important notes at the end of this document.
• Ensure that adjacent materials are designed for operation at temperature comparable to the
surface temperature of thermistor. Be sure that surrounding parts and materials can withstand this
temperature.
• Avoid contamination of thermistor surface during processing.
Operation
• Use thermistors only within the specified temperature operating range.
• Use thermistors only within the specified voltage and current ranges.
• Environmental conditions must not harm the thermistors. Use thermistors only in normal
atmospheric conditions. Avoid use in deoxidizing gases (chlorine gas, hydrogen sulfide gas,
ammonia gas, sulfuric acid gas etc), corrosive agents, humid or salty conditions. Contact with any
liquids and solvents should be prevented.
• Be sure to provide and appropriate fail-safe function to prevent secondary product damage caused
by abnormal function (e.g. use VDR for limitation of overvoltage condition).
Important notes
Page 6 of 6
The following applies to all products named in this publication:
1. Some parts of this publication contain statements about the suitability of our products for
certain areas of application. These statements are based on our knowledge of typical
requirements that are often placed on our products in the areas of application concerned. We
nevertheless expressly point out that such statements cannot be regarded as binding
statements about the suitability of our products for a particular customer application. As a
rule, EPCOS is either unfamiliar with individual customer applications or less familiar with them
than the customers themselves. For these reasons, it is always ultimately incumbent on the
customer to check and decide whether an EPCOS product with the properties described in the
product specification is suitable for use in a particular customer application.
2. We also point out that in individual cases, a malfunction of electronic components or failure
before the end of their usual service life cannot be completely ruled out in the current state
of the art, even if they are operated as specified. In customer applications requiring a very high
level of operational safety and especially in customer applications in which the malfunction or
failure of an electronic component could endanger human life or health (e.g. in accident
prevention or life-saving systems), it must therefore be ensured by means of suitable design of the
customer application or other action taken by the customer (e.g. installation of protective circuitry
or redundancy) that no injury or damage is sustained by third parties in the event of malfunction or
failure of an electronic component.
3. The warnings, cautions and product-specific notes must be observed.
4. In order to satisfy certain technical requirements, some of the products described in this
publication may contain substances subject to restrictions in certain jurisdictions (e.g.
because they are classed as hazardous). Useful information on this will be found in our Material
Data Sheets on the Internet (www.epcos.com/material). Should you have any more detailed
questions, please contact our sales offices.
5. We constantly strive to improve our products. Consequently, the products described in this
publication may change from time to time. The same is true of the corresponding product
specifications. Please check therefore to what extent product descriptions and specifications
contained in this publication are still applicable before or when you place an order.
We also reserve the right to discontinue production and delivery of products. Consequently,
we cannot guarantee that all products named in this publication will always be available.
The aforementioned does not apply in the case of individual agreements deviating from the
foregoing for customer-specific products.
6. Unless otherwise agreed in individual contracts, all orders are subject to the current version of
the “General Terms of Delivery for Products and Services in the Electrical Industry”
published by the German Electrical and Electronics Industry Association (ZVEI).
7. The trade names EPCOS, BAOKE, Alu-X, CeraDiode, CSMP, CSSP, CTVS, DeltaCap, DigiSiMic,
DSSP, FormFit, MiniBlue, MiniCell, MKD, MKK, MLSC, MotorCap, PCC, PhaseCap, PhaseCube,
PhaseMod, PhiCap, SIFERRIT, SIFI, SIKOREL, SilverCap, SIMDAD, SiMic, SIMID, SineFormer,
SIOV, SIP5D, SIP5K, ThermoFuse, WindCap are trademarks registered or pending in Europe
and in other countries. Further information will be found on the Internet at
www.epcos.com/trademarks.
