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Scientific Instrumentation

A wide range of precision and ultra-precision resistors from Alpha Electronics, General Resistance and Susumu, power resistors from Caddock and current sensing resistors and shunts from Isabellenhütte in a variety surface-mount and through-hole packages and virtually any resistance value.

Variety of NTC and PTC thermistors, thermal probes and inrush current limiters from Ametherm.

A range of digital isolators from NVE Corporation, based on their patented spintronic GMR technology.

Scientific Instrumentation

P1086

InterFET P1086 P-Channel JFET with P0099F Geometry. Typical leakage of 5pA and a low input capacitance of 45pF (max). All of this in a TO-92 package.

P1086

PAD1

InterFET PAD1 N-Channel PicoAmp Diode with N0001H Geometry. Typical leakage of -0.5pA. All of this in a TO-18 package.

PAD1

PN4117

InterFET PN4117 N-Channel JFET with N0001H Geometry. Typical leakage of -1pA and a low input capacitance of 3pF (max). All of this in a TO-92 package.

PN4117

PN4117A

InterFET PN4117A N-Channel JFET with N0001H Geometry. Maximum leakage of -1pA and a low input capacitance of 3pF (max). All of this in a TO-92 package.

PN4117A

RARA HPS

High Power Precision Shunt Resistor
Resistance range from 0.001Ω to 0.01Ω *
Tolerances of ±0.05% to ±1%
TCR of ±5ppm/℃, ±10ppm/℃ *
Power rating of 250W (on a suitable heat sink)
Temperature range from -55°C to +100°C

RARA HPS Series

RARA IRV60

Metal clad wire wound resistor
Option of flying leads (tab terminals are standard)
Inductive or non-inductive design
Insulation resistance of 20MΩ minimum
Temperature range of -55°C up to +200°C
Extruded aluminium vertical housing
Short time overload of 5 x power rating is 5 seconds

RARA IRV60

RARA UHPS

4-terminal shunt resistor
Resistance options of 0.2mΩ and 1mΩ
Tolerances of ±0.05% to ±1%
TCR of ±10 ppm/°C
Power rating of 100W (on a suitable heat sink)
Temperature range from -55°C to +100°C

RARA UHPS Series-1

Resi HVLR Series

High voltage thick film resistor with up to 48kV operating voltage, 1kΩ to 1GΩ resistance range and axial mounting for reliable HV circuit design.

HVLRXXXXXXXXXKX

Resi MMFR Series

A high‑stability precision metal film resistor with 10Ω to 1MΩ range, 0.25W–1W rating, ultra-tight ±0.05% tolerance, low ±5 ppm/°C TCR, and durable through-hole, moisture-resistant construction.

MMFRXXXXXXXXXVX

Resi PTFR Series

Precision thin film chip resistor with 10Ω to 5.1MΩ range, tolerance down to ±0.01% and TCR as low as ±5ppm/℃ for high-stability SMD circuits.

PTFRXXXXXXXXXXX

Resi PZFR Series

Precision foil chip resistor with 5Ω to 125kΩ range, ±0.01% tolerance and ±2 ppm TCR for ultra-stable SMD circuit designs.

PZFRXXXXXXXXXXX

SMP152

InterFET SMP152 N-Channel JFET with N0132L Geometry. Typical leakage of -4pA and a low input capacitance of 15pF (max). All of this in a SOT-23 package.

SMP152

SMP3971

InterFET SMP3971 N-Channel JFET with N0132S Geometry. Typical leakage of -4pA and a low input capacitance of 25pF (max). All of this in a SOT-23 package.

SMP3971

SMP4092

InterFET SMP4092 N-Channel JFET with N0132S Geometry. Typical leakage of -4pA and a low input capacitance of 16pF (max). All of this in a SOT-23 package.

SMP4092

SMP4117

InterFET SMP4117 N-Channel JFET with N0001H Geometry. Typical leakage of -1pA and a low input capacitance of 3pF (max). All of this in a SOT-23 package.

SMP4117

SMP4117A

InterFET SMP4117A N-Channel JFET with N0001H Geometry. Maximum leakage of -1pA and a low input capacitance of 3pF (max). All of this in a SOT-23 package.

SMP4117A

P1086

P-Channel JFET

InterFET P1086 P-Channel JFET with P0099F Geometry. Typical leakage of 5pA and a low input capacitance of 45pF (max). All of this in a TO-92 package.

PAD1

PicoAmp Diode

InterFET PAD1 N-Channel PicoAmp Diode with N0001H Geometry. Typical leakage of -0.5pA. All of this in a TO-18 package.

PN4117

N-Channel JFET

InterFET PN4117 N-Channel JFET with N0001H Geometry. Typical leakage of -1pA and a low input capacitance of 3pF (max). All of this in a TO-92 package.

PN4117A

N-Channel JFET

InterFET PN4117A N-Channel JFET with N0001H Geometry. Maximum leakage of -1pA and a low input capacitance of 3pF (max). All of this in a TO-92 package.

RARA HPS

High Power Precision Shunt Resistor

High Power Precision Shunt Resistor
Resistance range from 0.001Ω to 0.01Ω *
Tolerances of ±0.05% to ±1%
TCR of ±5ppm/℃, ±10ppm/℃ *
Power rating of 250W (on a suitable heat sink)
Temperature range from -55°C to +100°C

RARA IRV60

Metal Clad Wire Wound Resistors

Metal clad wire wound resistor
Option of flying leads (tab terminals are standard)
Inductive or non-inductive design
Insulation resistance of 20MΩ minimum
Temperature range of -55°C up to +200°C
Extruded aluminium vertical housing
Short time overload of 5 x power rating is 5 seconds

RARA UHPS

Ultra High Power Precision Shunt Resistor

4-terminal shunt resistor
Resistance options of 0.2mΩ and 1mΩ
Tolerances of ±0.05% to ±1%
TCR of ±10 ppm/°C
Power rating of 100W (on a suitable heat sink)
Temperature range from -55°C to +100°C

Resi HVLR Series

Planar Non-inductive Power Resistor

High voltage thick film resistor with up to 48kV operating voltage, 1kΩ to 1GΩ resistance range and axial mounting for reliable HV circuit design.

Resi MMFR Series

Precision Metal Film Molded Resistor

A high‑stability precision metal film resistor with 10Ω to 1MΩ range, 0.25W–1W rating, ultra-tight ±0.05% tolerance, low ±5 ppm/°C TCR, and durable through-hole, moisture-resistant construction.

Resi PTFR Series

High-Stability Precision Thin Film Chip Resistor

Precision thin film chip resistor with 10Ω to 5.1MΩ range, tolerance down to ±0.01% and TCR as low as ±5ppm/℃ for high-stability SMD circuits.

Resi PZFR Series

Precision Foil Chip Resistor

Precision foil chip resistor with 5Ω to 125kΩ range, ±0.01% tolerance and ±2 ppm TCR for ultra-stable SMD circuit designs.

SMP152

N-Channel JFET

InterFET SMP152 N-Channel JFET with N0132L Geometry. Typical leakage of -4pA and a low input capacitance of 15pF (max). All of this in a SOT-23 package.

SMP3971

N-Channel JFET

InterFET SMP3971 N-Channel JFET with N0132S Geometry. Typical leakage of -4pA and a low input capacitance of 25pF (max). All of this in a SOT-23 package.

SMP4092

N-Channel JFET

InterFET SMP4092 N-Channel JFET with N0132S Geometry. Typical leakage of -4pA and a low input capacitance of 16pF (max). All of this in a SOT-23 package.

SMP4117

N-Channel JFET

InterFET SMP4117 N-Channel JFET with N0001H Geometry. Typical leakage of -1pA and a low input capacitance of 3pF (max). All of this in a SOT-23 package.

SMP4117A

N-Channel JFET

InterFET SMP4117A N-Channel JFET with N0001H Geometry. Maximum leakage of -1pA and a low input capacitance of 3pF (max). All of this in a SOT-23 package.

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