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4309R-101-821

4309R-101-821 Description

The 4309R-101-821 from Bourns Inc. is an 8-resistor bussed network array housed in a compact 9-pin SIP (Single In-line Package). Designed for through-hole mounting, it features a resistance value of 820Ω per element with a tight tolerance of ±2%, ensuring consistent performance in precision circuits. The array operates within a ±100ppm/°C temperature coefficient and offers a resistor-ratio drift of 50ppm/°C, making it stable across varying thermal conditions. With a power rating of 200mW per resistor and dimensions of 22.45mm x 2.16mm (0.884" x 0.085"), it balances space efficiency with robust power handling. The 4300R series construction ensures reliability, while the REACH-compliant, tube-packaged design simplifies integration into automated assembly processes.

4309R-101-821 Features

• High-Density Integration: 8 resistors in a 9-pin SIP, saving PCB space.
• Stable Performance: Low ±100ppm/°C TCR and 50ppm/°C ratio drift for thermal stability.
• Precision Tolerance: ±2% resistance tolerance for accurate signal conditioning.
• Durable Construction: 200mW power rating per element and through-hole mounting for mechanical robustness.
• Industry-Standard Compliance: EAR99 ECCN and HTSUS 8533.21.0050 classification for global compatibility.
• Moisture-Resistant: MSL Not Applicable ensures no baking requirements before assembly.

4309R-101-821 Applications

Ideal for voltage division, pull-up/pull-down networks, and impedance matching in:

• Industrial Control Systems: PLCs and sensor interfaces requiring stable resistance ratios.
• Consumer Electronics: Audio equipment and display drivers where space and precision are critical.
• Telecommunications: Signal conditioning in legacy and low-frequency communication devices.
• Automotive Electronics: Non-critical circuits where vibration resistance and thermal stability are prioritized.

Conclusion of 4309R-101-821

The 4309R-101-821 combines high density, precision, and thermal resilience, making it a superior choice for applications demanding repeatable performance in constrained spaces. Its bussed architecture simplifies circuit design, while Bourns' reputation for reliability ensures long-term durability. Whether for prototyping or mass production, this resistor array delivers consistent performance in demanding environments.