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SLDN-20D1A

tech.support@psbel.com

The ruggedized (-D version) of the modules are designed to withstand elevated levels of shock and vibration to be able to operate in

harsh environments. The ruggedized modules have been successfully tested to the following conditions:

Non-operating random vibration:

Random vibration tests conducted at 25C, 10 to 2000Hz, for 30 minutes each level, starting from 30Grms (Z axis) and up to 50Grms

(Z axis). The units were then subjected to two more tests of 50Grms at 30 minutes each for a total of 90 minutes.

Operating shock to 40G per Mil Std. 810F, Method 516.4 Procedure I:

The modules were tested in opposing directions along each of three orthogonal axes, with waveform and amplitude of the shock

impulse characteristics as follows:

All shocks were half sine pulses, 11 milliseconds (ms) in duration in all 3 axes.

UnIts were tested to the Functional Shock Test of MIL-STD-810, Method 516.4, Procedure I - Figure 516.4-4. A shock magnitude of

40G was utilized. The operational units were subjected to three shocks in each direction along three axes for a total of eighteen

shocks.

Operating vibration per Mil Std 810F, Method 514.5 Procedure I:

The ruggedized (-D version) modules are designed and tested to vibration levels as outlined in MIL-STD-810F, Method 514.5, and

Procedure 1, using the Power Spectral Density (PSD) profiles as shown in Table 1 and Table 2 for all axes. Full compliance with

performance specifications was required during the performance test. No damage was allowed to the module and full compliance to

performance specifications was required when the endurance environment was removed. The module was tested per MIL-STD-810,

Method 514.5, Procedure I, for functional (performance) and endurance random vibration using the performance and endurance levels

shown in Table 4 and Table 5 for all axes. The performance test has been split, with one half accomplished before the endurance test

and one half after the endurance test (in each axis). The duration of the performance test was at least 16 minutes total per axis and

at least 120 minutes total per axis for the endurance test. The endurance test period was 2 hours minimum per axis.

FREQUENCY

(Hz)

PSD LEVEL

(G2/Hz)

FREQUENCY

(Hz)

PSD LEVEL

(G2/Hz)

FREQUENCY

(Hz)

PSD LEVEL

(G2/Hz)

10

1.14E-03

170

2.54E-03

690

1.03E-03

30

5.96E-03

230

3.70E-03

800

7.29E-03

40

9.53E-04

290

7.99E-04

890

1.00E-03

50

2.08E-03

340

1.12E-02

1070

2.67E-03

90

2.08E-03

370

1.12E-02

1240

1.08E-03

110

7.05E-04

430

8.84E-04

1550

2.54E-03

130

5.00E-03

490

1.54E-03

1780

2.88E-03

140

8.20E-04

560

5.62E-04

2000

5.62E-04

Table 15. Performance Vibration Qualification - All Axes

FREQUENCY

(Hz)

PSD LEVEL

(G2/Hz)

FREQUENCY

(Hz)

PSD LEVEL

(G2/Hz)

FREQUENCY

(Hz)

PSD LEVEL

(G2/Hz)

10

0.00803

170

0.01795

690

0.00727

30

0.04216

230

0.02616

800

0.05155

40

0.00674

290

0.00565

890

0.00709

50

0.01468

340

0.07901

1070

0.01887

90

0.01468

370

0.07901

1240

0.00764

110

0.00498

430

0.00625

1550

0.01795

130

0.03536

490

0.01086

1780

0.02035

140

0.0058

560

0.00398

2000

0.00398

Table 16. Endurance Vibration Qualification - All Axes