Magnetic Fields - IBM DTCA-23240 - Travelstar 3.2 GB Hard Drive Specifications

5.1.2 Magnetic Fields

The disk drive will withstand radiation & conductive noise within the limits shown below.
5.1.2.1 Radiation Noise
The disk drive shall work without degradation of the soft error rate under the following Magnetic Flux
Density Limits at the enclosure surface.
Frequency ( KHz )
0 - 60
61 - 100
101 - 200
201 - 400
Figure 14. Magnetic Flux Density Limits
5.1.2.2 Conductive Noise
The disk drive shall work without degradation of the soft error rate, with an AC current of up to 45
mA(p-p), in the frequency range from DC to 20 MHz, injected through any two of the mounting screw
holes of the drive via 50ohm resistor.
20
O E M Specifications of DTCA-2xxxx 2.5 inch H D D
Limits ( Gauss rms )
5.0
2.5
1.0
0.5