www.vishayfoilresistors.com
1
For any questions, contact
foil@vpgsensors.com
4128-EN
Rev 04-Mar-2020
VSMP Series (0603, 0805, 1206, 1506, 2010, 2512) (Z Foil)
Ultra High Precision Foil Wraparound Surface Mount Chip Resistor
Ultra High Precision Foil Wraparound Surface Mount Chip Resistor
with TCR of ±0.05 ppm/°C and Power Coefficient of 5 ppm at
Rated Power and Load Life Stability of ±0.005% (50 ppm)
FEATURES
• Temperature coefficient of resistance (TCR):
0.2 ppm/°C typical (–55°C to +125°C, +25°C ref.)
• Resistance tolerance: to ±0.01%
• Power coefficient “∆R due to self heating”:
5 ppm at rated power
• Power rating: to 750 mW at +70°C (see table 3)
• Load life stability: to ±0.005% at 70°C, 2000 h
at rated power
• Resistance range: 5 Ω to 125 kΩ (for lower or higher
values, please contact us)
• Bulk Metal Foil resistors are not restricted to standard
values, we can supply specific “as required” values at
no extra cost or delivery (e.g. 1K2345 vs. 1K)
• Thermal stabilization time <1 s (nominal value achieved
within 10 ppm of steady state value)
• Electrostatic discharge (ESD) at least to 25 kV
• Short time overload: ≤0.005%
• Non inductive, non capacitive design
• Rise time: 1 ns effectively no ringing
• Current noise: 0.010 μV
RMS
/V of applied voltage
(<–40 dB)
• Voltage coefficient <0.1 ppm/V
(resistance values above 10 kΩ)
• Non inductive: <0.08 μH
• Non hot spot design
• Terminal finishes available: lead (Pb)-free, tin/lead alloy
• Matched sets are available on request
• Screening in accordance with EEE-INST-002 and
MIL-PRF-55342 available (see datasheet resistor
models 303133 to 303138)
• Quick prototype quantities available, please contact
foil@vpgsensors.com
4128-EN
Rev 04-Mar-2020
Figure 1—Power Derating Curve
100
75
50
25
0
- 75 - 50 - 25 0+ 25 + 50 + 75 + 100 + 125 + 150 + 175
Ambient Temperature (°C)
Percent of Rated Power
+ 70 °C
- 55 °C
VSMP Series (0603, 0805, 1206, 1506, 2010, 2512)
(Z Foil)
INTRODUCTION
VSMP Series is the industry’s first device to provide high
rated power and excellent load life stability along with
extremely low TCR – all in one resistor.
One of the most important parameters influencing stability
is the Temperature Coefficient of Resistance (TCR).
Although the TCR of Bulk Metal
®
Foil is considered
extremely low, this characteristic has been further
refined over the years. The VSMP Series utilizes ultra
high precision Z Foil. The Z Foil technology provides a
significant reduction of the resistive element’s sensitivity
to ambient temperature variations (TCR) and to self
heating when power is applied (Power Coefficient of
Resistance, or PCR). Along with the inherently low PCR
and TCR, Z Foil technology also provides remarkably
improved load life stability, low noise and tight tolerances.
Vishay Foil Resistors’ (VFR) application engineering
department is available to advise and make
recommendations. For non-standard technical
requirements and special applications, please contact
us using the e-mail address in the footer below.
* This datasheet provides information about parts that are RoHS-compliant and/or parts that are non-RoHS-compliant.
For example, parts with lead (Pb) terminations are not RoHS compliant. Please see the information/tables in this datasheet for details.
Table 1—Tolerance and TCR vs. Resistance
Value
(1)
(–55°C to +125°C, +25°C Ref.)
Resistance value Tolerance
Typical TCR and
max. Spread
250 Ω to 125 kΩ ±0.01% ±0.2 ±1.8 ppm/°C
100 Ω to <250 Ω ±0.02% ±0.2 ±1.8 ppm/°C
50 Ω to <100 Ω ±0.05% ±0.2 ±2.8 ppm/°C
25 Ω to <50 Ω ±0.1% ±0.2 ±3.8 ppm/°C
10 Ω to <25 Ω ±0.25% ±0.2 ±3.8 ppm/°C
5 Ω to <10 Ω ±0.5% ±0.2 ±7.8 ppm/°C
Top View
(for date code print specification please refer to table 2)
(1)
For tighter performances and non-standard values lower than
5 Ω and above 125 kΩ, please contact application engineering
using the e-mail addresses in the footer below
