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RK73H1JTTD6343F

AEC-Q200 634kΩ 1% 0.1W precision thick film resistor, 0603, ±100ppm/°C, E96, RK73H

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Manufacturer Part：

RK73H1JTTD6343F

Package：

0603 (1608 Metric, 1.60 x 0.85 x 0.45 mm)

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Description

Product Overview

The RK73H1JTTD6343F is a KOA Speer AEC-Q200 qualified precision thick film chip resistor in a 0603 (1608 metric) package. Featuring 432kΩ resistance (6343 code: 634 × 10³ = 634kΩ, or E96-series 634 with 3 zeros = 634kΩ) with ±1% tolerance, 0.1W power rating, and ±100ppm/°C temperature coefficient, it is designed for automotive and industrial precision applications requiring E96-series resistance values.

Key Specifications

Resistance 634kΩ (E96 series)
Tolerance ±1%
Power Rating 0.1W (1/10W) @ 70°C ambient
Temperature Coefficient (TCR) ±100ppm/°C
Maximum Working Voltage 75V
Operating Temperature -55°C to +155°C
Rated Ambient Temperature 70°C (derating to 0W at 155°C)
Qualification AEC-Q200
Package 0603 (1608 Metric)

Features

  • AEC-Q200 qualified for automotive applications
  • Precision tolerance: ±1%
  • Low TCR: ±100ppm/°C
  • E96 series resistance value (634kΩ)
  • High reliability and stability
  • 4-digit marking on blue protective coat
  • Metal glaze thick film on ceramic substrate
  • EU RoHS compliant (Pb-free termination)

Applications

  • Automotive precision feedback networks
  • High-impedance voltage dividers
  • Sensor bias and conditioning circuits
  • Precision timer RC networks
  • Industrial measurement circuits

The RK73H1JTTD6343F is a KOA Speer AEC-Q200 qualified precision thick film chip resistor in a 0603 (1608 metric) package. Featuring 634kΩ resistance (E96 series) with ±1% tolerance, 0.1W power rating at 70°C, and ±100ppm/°C temperature coefficient, it provides a precise E96-series value for automotive and industrial applications requiring non-standard resistance values. The RK73H series offers tighter tolerance and lower TCR than the general-purpose RK73B series, making it suitable for precision feedback networks, high-impedance voltage dividers, and sensor conditioning circuits.

The RK73H1JTTD6343F operates as a precision fixed thick film resistor using metal glaze thick film deposited on an alumina ceramic substrate. The 4-digit resistance code ‘6343’ indicates 634 × 10³ = 634kΩ, an E96-series value not available in the coarser E24 series. Laser trimming adjusts the resistance to the precise 634kΩ value within ±1% tolerance. The ±100ppm/°C TCR ensures resistance stability within ±1% over the full -55°C to +155°C operating range. The blue protective coating with 4-digit marking distinguishes the precision RK73H series. The E96 series provides 96 values per decade (vs. 24 for E24), enabling closer-to-ideal resistance selection in precision circuit design.

Pin Mnemonic Description
1 Terminal 1 Resistive element connection (3-layer: inner/Ni barrier/Sn)
2 Terminal 2 Resistive element connection (3-layer: inner/Ni barrier/Sn)
  • Automotive high-impedance voltage divider with 634kΩ precision element for low-current sensor biasing
  • Op-amp feedback network with E96-series 634kΩ for non-standard gain values
  • Precision RC timer network with 634kΩ and ±1% tolerance for accurate timing
  • Sensor conditioning bridge requiring E96 resistance values with ±100ppm/°C stability
  • Industrial measurement circuit with 634kΩ and 75V maximum working voltage
Model Manufacturer Key Difference
RK73H1JTTD6193F KOA 619kΩ, adjacent E96 value
RK73H1JTTD6493F KOA 649kΩ, next E96 value
RC0603FR-07634KL Yageo 634kΩ 1% 0603, standard grade
CRCW0603634KFKEA Vishay 634kΩ 1% 0603, automotive grade
ERJ-3EKF6343V Panasonic 634kΩ 1% 0603, thick film
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