PEP
Vishay Sfernice
www.vishay.com
High Precision Wraparound - Power Enhanced
Thin Film Chip Resistors
FEATURES
• Load life stability: 0.1 % typical (0.35 % max.)
at 2000 h / Pn / 70° C
• Very low noise < -35 dB and voltage coefficient
< 0.01 ppm/V
• Wide resistance range:
39 Ω to 900 kΩ depending on size
• Tolerances down to ꢀ0ꢀꢁ ꢂ
LINKS TO ADDITIONAL RESOURCES
• Termination: thin film technology
• Pn: up to 1 W for 1206 size, without cooling under PCB
required
3
D
3D Models
• Sulfur resistant (per ASTM B809-95 humid vapor test)
INTRODUCTION
• Material categorization: for definitions of compliance
please see www.vishay.com/doc?99912
PEP series chip resistors are designed for high power
applications, low noise, superior stability, low temperature
coefficient of resistance, and low voltage coefficient. The
resistive thin film layer can withstand an established
temperature as high as 250 °C: hence, the restrictions are
mainly due to the robustness of terminations and solder
joints.
PEP series is recommended for customers who need to
switch to lower size devices, with the same power limits.
STANDARD ELECTRICAL SPECIFICATIONS
RATED
RATED
RESISTANCE
RANGE
Ω
LIMITING ELEMENT
TEMPERATURE
COEFFICIENT (2)
ppmꢃ/C
POWER W POWER W
TOLERANCE
ꢂ (2)
MODEL
SIZE
VOLTAGE
V
(1)
(1)
Pn
Pd
PEP0402
PEP0603
PEP0805
PEP1206
0402
0603
0805
1206
39 to 50K
39 to 108K
39 to 240K
39 to 900K
0.125
0.320
0.063
0.125
0.200
0.330
50
75
0.05, 0.1, 0.5, 1
0.05, 0.1, 0.5, 1
0.05, 0.1, 0.5, 1
0.05, 0.1, 0.5, 1
5, 10, 25, 50
5, 10, 25, 50
5, 10, 25, 50
5, 10, 25, 50
0.500
0.660 (3)
150
200
Notes
(1)
(2)
(3)
Pn = nominal power: Pd = derated power intended to improve stability
For ohmic range versus tolerance and TCR, see Best Tolerance and TCR vs0 Ohmic Value” table
Pn = 1 W if PEP1206 is mounted on alumina board
CLIMATIC SPECIFICATIONS
MECHANICAL SPECIFICATIONS
Substrate
Alumina
Operating temperature range
-55 °C; +155 °C
Technology
Thin film
Nickel chromium based alloy
Film
with mineral passivation
PERFORMANCE VS. HUMID SULFUR VAPOR
Protection
Terminations
Epoxy + silicone
50 °C 2 °C, 85 % 4 % RH,
Test conditions
exposure time 500 h
N type: tin silver over nickel barrier
G type: gold over nickel barrier
Resistance drift < (0.05 % R + 0.05 Ω),
Test results
no corrosion products observed
Revision: 14-Mar-2023
Document Number: 53083
1
For technical questions, contact: sferthinfilm@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