3SM Series :: ATE Electronics s.r.l.

3SM Series

Surface mount power wirewound resistors

Features

Sostituzione diretta dei resistori a filo assiali con caratteristiche
di impiego inalterate.
Possibilità di realizzare tolleranze molto ristrette.
Bassi coefficienti di temperatura e buona stabilità anche in condizioni
di impiego molto gravose.
Alto livello di affidabilità ottenuto con l’impiego di barrette in
ceramica rettificate e filo resistivo con alta stabilità.
Connessioni realizzate esclusivamente mediante puntatura elettrica.
Protezione realizzata con resina siliconica e termoplastica V0 stampata
attorno al resistore per impieghi con  temperature da -55°C a +220°C.

 

Easy replacement of axial power wirewound resistors without performance loss.

Performance improvement is obtained by close tolerance, very low temperature coefficient and stability in operation under severe environmental conditions.

High level reliability due to ceramic core chemically inert and centerless ground, selected wire element and completely welded construction terminal to terminal.

The whole assembly is silicon coated and thermoplastic UL94-V0 moulded to give maximum wire protection from -55°C to +220°C.

 

Technical Specifications3sm1-01

- Power rating

3 W at 70°C, mounted on FR4 board 1.6 mm

- Resistance range

from R10 to 10K. E12 series, other on request

- Tolerance

standard 5%, up to 1% on request

- TCR

Typical values ±100 to ±30 ppm from R10 to 10K3sm2-01

- Maximum continuous working voltage

200 Vac

- Thermal resistance

50 °C/W 

- Derating

Linear from 70°C to 220°C

- Dielectric Strength

1000 Vac

- Insulation resistance

1000 MOhm minimum

- Overload

5s at 5 times power rating

- Non inductive

Ayrton-Perry winding, max. 4K7

- Weight

2.5 g

- Climatic category

55/220/56

- Packaging

Reel 330 mm, blister 32 mm, pitch 12 mm,700 pcs

 

3sm3-01

disegno3sm-01