August 15, 2025
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In today's electronics market, demand for high-precision, moisture-resistant SMD resistors is surging, driven by compact IoT devices and automotive electronics. The YAGEO RC1206FR-133K48L stands out with its ±1% tolerance, 100ppm/°C stability, and robust 1206 package. This article dives into its specifications, selection criteria, and industrial applications to help engineers make informed decisions. Read on to discover why this component is a top choice for stable performance in harsh environments.
The RC1206FR-133K48L from YAGEO is a thick film chip resistor designed for surface-mount technology (SMT). Key features include:
Resistance: 3.48 kΩ ±1% tolerance
Power Rating: 0.25W (1/4W) at 70°C
Temperature Coefficient: ±100ppm/°C
Operating Range: -55°C to +155°C (per YAGEO datasheet)
Package: 1206 (3216 Metric), 3.10mm x 1.60mm
| Parameter | RC1206FR-133K48L | Similar Model (RC1206FR-073K3L) | Advantage |
|---|---|---|---|
| Resistance | 3.48 kΩ | 3.3 kΩ | Precision value for voltage divider circuits |
| Tolerance | ±1% | ±1% | Equal |
| Power Rating | 0.25W | 0.25W | Equal |
| Temp Coefficient | ±100ppm/°C | ±200ppm/°C | Better stability |
Follow this flowchart to determine if the RC1206FR-133K48L fits your design:
Power Requirement: Ensure load ≤ 0.25W (derate above 70°C)
Precision Needs: ±1% tolerance suits most analog circuits
Environment: Moisture-resistant thick film ideal for humid conditions
Space Constraints: 1206 package balances size and hand-solderability
Industrial Use: Used in PLCs for signal conditioning due to low TCR (±100ppm/°C).
Automotive: ECU modules leverage its moisture resistance (per AEC-Q200 unofficial testing).
Consumer Electronics: Smart home sensors benefit from stable 3.48kΩ pull-up/down.
According to Electronics360 (2023), the 1206 resistor segment holds 22% of the SMD market, with YAGEO commanding 18% share. Demand is growing at 6.2% CAGR, driven by:
Automotive electrification
5G infrastructure requiring stable passives
YAGEO's roadmap indicates migration to advanced thin film for sub-50ppm TCR, though thick film remains cost-effective for ±100ppm applications like the RC1206FR-133K48L.
Q1: Can this resistor handle 0.5W briefly?
A: No, exceeding 0.25W may cause permanent damage (refer to YAGEO's derating curve).
Q2: Is it RoHS compliant?
A: Yes, compliant with Directive 2011/65/EU.
Q3: What's the shelf life?
A: 2 years when stored at <40°C/<90% RH (per IPC/JEDEC J-STD-033).
Q4: Recommended soldering profile?
A: IR reflow peak at 260°C for ≤10s (IPC-7351).
Q5: Alternatives for higher power?
A: Consider YAGEO's RC2010 series (0.5W rating).
For pricing and datasheets, contact: [email protected]
The RC1206FR-133K48L delivers reliable performance for precision circuits needing 3.48kΩ resistance with ±1% accuracy. Its moisture-resistant thick film construction and 1206 package make it versatile for industrial, automotive, and consumer applications. Engineers can leverage its stable TCR and power handling for robust designs.
