M25SI
Vishay Draloric
www.vishay.com
Fusible Thin Film Chip Resistors
FEATURES
• Metal film on high quality ceramic
• Special protective top coat
• Flame retardant
• Sn solder contacts on Ni barrier layer
• Fusible resistor for constant voltage
• Material categorization: for definitions of compliance
please see www.vishay.com/doc?99912
M25SI fusible thin film chip resistors are designed for
overload protection in modern professional electronics.
Typical applications include automotive, telecommunication
and industrial equipment.
TECHNICAL SPECIFICATIONS
DESCRIPTION
M25SI
1206
Imperial size
Metric size code
RR3216M
5 Ω to 3.9 kΩ
5 % (2)
Resistance range
Resistance tolerance
Temperature coefficient
100 ppm/ꢀ
0.250 W
(1)
Rated dissipation, P70
Operating voltage, Umax. ACRMS/DC
P x R
(1)
Permissible film temperature, ϑF max.
125 °C
Operating temperature range (1)
Permissible voltage against ambient (insulation):
1 min; Uins
-55 °C to 125 °C
> 300 V
Failure rate: FITobserved
≤ 1 x 10-9/h
Notes
(1)
Please refer to APPLICATION INFORMATION below.
Tolerance 1 % on request.
(2)
APPLICATION INFORMATION
When the resistor dissipates power, a temperature rise above the ambient temperature occurs, dependent on the thermal
resistance of the assembled resistor together with the printed circuit board. The rated dissipation applies only if the permitted
film temperature is not exceeded.
These resistors do not feature a limited lifetime when operated within the permissible limits. However, resistance value drift
increasing over operating time may result in exceeding a limit acceptable to the specific application, thereby establishing a
functional lifetime.
PULSE TEST DATA
Pulse power (square pulse)
0.9 W
100 μs
100 ms
105
0.3 W
100 ms
1 s
Pulse duration ti
Pulse pause tp
Number of pulses
Drift after pulse test
105
< 0.1 %
< 0.1 %
Revision: 11-Nov-15
Document Number: 20031
1
For technical questions, contact: thinfilmchip@vishay,com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000