| Image | Part Number | Description / PDF | Quantity | Rfq |
|---|---|---|---|---|
 |
Vishay / Beyschlag |
LCS 96 4 MCS 0402-25 0.1% AT |
2 |
|
 |
Vishay / Beyschlag |
LMA 12 1 MMA 0204-50 1% |
3 |
|
 |
Vishay / Beyschlag |
RESISTR KIT 43-511K 1/4W 1980PCS |
2 |
|
 |
Vishay / Beyschlag |
RESISTOR KIT 33-1M 0.4W 2180PCS |
1 |
|
 |
Vishay / Beyschlag |
LMC 12 1 CMB 0207 2% 5% |
5 |
|
|
Vishay / Beyschlag |
LAB KIT MELF LOW OHMIC RESISTORS |
4 |
|
KitsResistor Kits are comprehensive sets containing multiple resistor types, values, and packages. They serve as essential tools for electronics engineers, hobbyists, and educators to test, prototype, and optimize circuits. Resistors regulate current flow, divide voltages, and terminate signals in electronic systems. Their importance spans modern industries, including telecommunications, automotive electronics, medical devices, and IoT systems.
| Type | Functional Features | Application Examples |
|---|---|---|
| Carbon Film Resistors | Low noise, high stability, cost-effective | Consumer electronics, audio amplifiers |
| Metal Film Resistors | High precision (< 0.5%), low temperature coefficient | Industrial measurement equipment |
| Wirewound Resistors | High power handling (>1W), accurate tolerances | Power supplies, motor controllers |
| Variable Resistors (Potentiometers) | Adjustable resistance, analog signal control | Volume controls, sensor calibration |
| SMD Resistor Arrays | Miniaturized, low inductance, high-density packaging | Smartphones, wearable devices |
A typical resistor kit includes:
- Resistive Elements: Carbon composition, metal oxide, or ceramic materials
- Terminals: Tin-plated copper or silver alloy for soldering
- Insulation Coating: Epoxy or silicone for environmental protection
- Marking: Color bands or laser-printed numerical codes (e.g., "473" = 47k )
Advanced kits may integrate zero-ohm jumpers and precision resistor networks for surface-mount prototyping.
| Parameter | Importance |
|---|---|
| Resistance Range | Determines current/voltage regulation capability (e.g., 1 10M ) |
| Power Rating | Defines maximum power dissipation (e.g., 0.25W 5W) |
| Tolerance | 0.1% (precision) to 5% (general-purpose) |
| Temperature Coefficient | Impacts stability (e.g., 25ppm/ C for metal film) |
| Voltage Rating | Prevents dielectric breakdown (e.g., 200V 1kV) |
| Manufacturer | Representative Product | Unique Features |
|---|---|---|
| Yageo | CRCW Series | 0.1% tolerance, AEC-Q200 automotive qualification |
| Vishay | MRS25 | Non-inductive wirewound resistors (10kV withstand voltage) |
| Ohmite | 500 Series | High-power aluminum-housed resistors (50W rating) |
| Bourns | 3296 Trimmer | Multi-turn precision adjustment ( 0.25%) |
Key considerations:
- Application Type: Use SMD resistors for space-constrained PCBs, wirewound for high power
- Environmental Factors: Select flame-retardant (FR) resistors for industrial environments
- Budget Constraints: Carbon film resistors cost ~$0.02/unit vs. $0.50/unit for precision metal film
Case Study: Designing a 100W LED driver requires selecting resistors with at least 5W power rating and 1% tolerance to ensure consistent current regulation.
Emerging trends include:
- Miniaturization: 0201 package size (0.6mm 0.3mm) for high-density PCBs
- Integration: Resistor networks combining 10+ elements in single IC packages
- Material Innovation: Graphene-enhanced resistors with 5ppm/ C stability
- Environmental Compliance: RoHS-compliant lead-free terminations
- Digital Resistor Kits: Smart resistor arrays with programmable resistance values via I2C interfaces