# Part reliability Source: [https://docs.qualcomm.com/doc/80-78830-1/topic/part-reliability.html](https://docs.qualcomm.com/doc/80-78830-1/topic/part-reliability.html) The QCC743M -P configuration leverages the reliability validation results of the -B and -U SKUs, as all three share the same main chip, flash memory, and hardware design principles. Additionally, the -B and -U configurations are more complex than -P. Table : Environment stress test results | Tests, standards, and conditions | Sample size | Result | | --- | :---: | :---: | | **Moisture Sensitivity Level 3 (MSL3) + 2x Reflow (J-STD-020)**

30°C, 60% RH, 192 hours, reflow peak temp 230~250°C | 66

(33u x -B & -U SKU) | Pass | | **Thermal Shock Test (IEC60068-2-14)**

Precondition (MSL3 + 2x reflow), -40°C ~ 125°C, ramp rate 30°C/min,
dwell time 30 min, 550 cycles | 66

(33u x -B & -U SKU) | Pass | | **High Temperature Storage Test (IEC60068-2-2)**

125°C (Ambient Temp.), 168 hours | 66

(33u x -B & -U SKU) | Pass | | **Low Temperature Storage Test (IEC60068-2-1)**

-40°C (Ambient Temp.), 96 hours | 66

( 33u x -B & -U SKU) | Pass | | **Cold Start Test (IEC60068-2-1)**

Operation at -40°C and nominal voltage 3.3 V, power on/off 500
times | 66

( 33u x -B & -U SKU) | Pass | | **Low Temperature Operation Test (IEC60068-2-1)**

Operation at -40°C and
nominal voltage 3.3 V, 72 hours, power on/off 3 times. | 66

( 33u x -B & -U SKU) | Pass | | **Temperature and Humidity Cycle Test (IEC60068-2-38)**

Operation and nominal voltage 3.3 V, 25°C, 50% RH for 2 hrs, 70°C,
95% RH for 10 hours, 25°C, 50% RH for 2 hours, 0°C for 10 hours,
Test Cycles: 10 cycles | 66

(33u x -B & -U SKU) | Pass | | **Thermal Profile Test**

Operation 6 hours at 65°C and nominal voltage 3.3 V, record thermal
measurement | 4

(2u x -B & -U SKU) | Pass | | **High Temperature and High Humidity Accelerated Life Test**

Operation at 85°C, 85% RH and nominal voltage 3.3V, 600 hours; MTBF =
1.44M hrs

Assume Ta=23°C, 50% RH; Ea=0.7, n=2.6, CL=90% | 12

(6u x -B & -U SKU) | Pass | | **Salt Mist Test (ASTM-B117)**

35±2°C, 5±1% saline solution with PH value ranges from 6.5 to 7.2.
Spray volume

1.5~2 ml/hour/80 cm^2^ for 24 hours. | 4

(2u x -B & -U SKU) | Pass | Table : Mechanical integrity test results | Tests, standards, and conditions | Sample size | Result | | --- | :---: | :---: | | **Random Vibration Non-operation (EIA-364-28)**

10~500 Hz, 3.13 Grms, 45 min/axis, x/y/z | 66

(33u x -B & -U SKU) | Pass | | **Mechanical Shock Non-operation (IEC60068-2-27)**

½ sine wave, 230G, 3 ms, 3 drops/axis, +/- x, y, z axis | 66

(33u x -B & -U SKU) | Pass | Table : ESD test results | Tests, standards, and conditions | Sample size | Result | | --- | :---: | :---: | | **ESD Contact Discharge (IEC 61000-4-2)**

Minimum1 kV, Target 2 kV | 4

(2u x -B & -U SKU) | 2 KV Pass | | **ESD CDM (JS-0002)**

**250 V/ 500 V/ 750 V/ 1 KV** | 3 pcs each voltage

(-B SKU) | 1 KV Pass | | Tests, standards, and conditions | Sample size | Result | | --- | --- | --- | | **Packaging Temperature and Humidity (ISTA-2A)**

38°C/85% RH for 72 hours | 1 Carton | Pass | | **Packaging Static Compression (ISTA-2A)**

Staticload Wt x (S - 1) x F for 1 hour.

Wt: Total weight of the packaged-product.

S: Total number of packaged-products in a stack. F: Compensating
factor=5 | 1 Carton | Pass | | **Packaging Random Vibration (ISTA-2A)**

1.15 Grms, 1~200 Hz, 30 minutes for face 3 and 10 minutes for face 1,
2, and 5 each | 1 Carton | Pass | | **Packaging Drop (ISTA-2A)**

10-19 kg: 81 cm, 10 drops (1 corner/3 edges/6 faces) | 1 Carton | Pass | | **Packaging Fixed Displacement Test (ISTA-2A)**

1 inch (25 mm) fixed displacement, total 14200 times | 1 Carton | Pass | | | | | | | | | | | | | | | | | The table below shows the total sample size for comparable QCC modules. | QCC module products REL test | Total sample size | | --- | :---: | | MSL3 | 198 | | Thermal Shock (-40~125°C/30 min, 550 cycles) | 228 | | High Temperature Storage (125°C, 168 hrs) | 216 | | Low Temperature Storage (-40°C, 96 hrs) | 216 | | Cold start (-40°C, 500 cycles) | 216 | | Low Temperature Operation (-40°C, 72 hrs) | 216 | | High Temperature Operation (85°C, 72 hrs) | 18 | | Temperature Humidity Cycling (0~70°C/95% RH, 10 cycles) | 216 | | Reliability Demonstration Test (85°C, 85% RH, 600 hrs) | 72 | | Vibration (10~500 Hz, 3.13 Grms) | 228 | | Shock (230 G, 3 ms) | 198 | | Tumbling (50 cm, 200 times) | 30 | | Salt spray (NaCl 5%, 24 hrs) | 32 | | ESD (150 pF, 330 R, 2 KV) | 26 | | ESD-CDM (1 KV) | 3 | Last Published: Apr 08, 2026 [Previous Topic Manufacturing guidelines](https://docs.qualcomm.com/bundle/publicresource/80-78830-1/topics/manufacturing-recommendation.md)