Pulse proof high power thick film chip resistors

6th February 2018
Posted By : Alice Matthews
Pulse proof high power thick film chip resistors

Surge protection is becoming essential for all circuit designs. With the SG73 series, KOA offers a resistor series which has approximately ten times higher pulse handling capability compared to standard flat chip resistors. Due to this pulse load capability these are suitable for protection of electronic circuits against extreme pulses and surges. These resistors are available with ±10% or ±20% resistance tolerance.

KOA has recently optimised the resistive material and the production process, and is now able to offer the SG73S, SG73P and SG73Gseries also with tighter tolerances of ±1%, ±0.5% and ±0.25%.

The KOA SG73S series is a special anti-surge resistor which is suitable for high peak voltages with short duration (e.g. ESD/CR discharge/rush current).

The SG73P series is a pulse-proof resistor which is suitable in case of higher power than rated power and pulse voltage is applied comparatively long (e.g. gate resistor of FET).

The SG73G series is a high precision pulse-proof resistor with T.C.R. ±50 ppm/K and the same one-pulse characteristics than the SG73P series.

Key features:

  • Pulse proof property
  • Higher power ratings than std. FC’s
  • Supposedly excellent in ESD characteristic (SG73, SG73S) 
  • High component and equipment reliability 
  • Resistance range 1Ω to 10MΩ
  • Resistance tolerances down to ±0.25%
  • Operating temperatures up to 155°C
  • Tested acc. to AEC-Q200 requirements
  • Anti-sulfuration type also available (SG73S/P_RT).

Downloads


You must be logged in to comment

Write a comment

No comments




Sign up to view our publications

Sign up

Sign up to view our downloads

Sign up

European Microwave Week 2018
23rd September 2018
Spain Ifema Feria De Madrid
Connected World Summit 2018
25th September 2018
United Kingdom Printworks, London
IoT Solutions World Congress 2018
16th October 2018
Spain Barcelona
Engineering Design Show 2018
17th October 2018
United Kingdom Ricoh Arena, Coventry
Maintec 2018
6th November 2018
United Kingdom NEC, Birmingham