Texas Instruments TI-30X IIS (Office Depot)

Date of introduction:  July 2020 Display technology:  LCD
New price:  Office Depot: $12.99
 meijer: $12.99 
Display size:  11 characters and 10 +2
Size:  6.1" x 3.2" x 0.6"
 154 x 83 x 15 mm
Weight:  3.3 ounces, 94 grams Serial No:  
Batteries:  Solar cells + CR2025 (60A) Date of manufacture:  mth 04 year 2020 (Q)
AC-Adapter:   Origin of manufacture:  Philippines (L)
Precision:  13 Integrated circuits:  
Memories:  5    
Program steps:   Courtesy of:  Joerg Woerner

This "Radical Red" colored TI-30X IIS was manufactured by Kinpo Electronics, Inc. for the office product retailer Office Depot / Office Max. It was released for the Back-to-School 2020 campaign together with its pink and blue siblings and the TI-84 Plus CE in the colors Galaxy Gray and Rose Curve Gold.

Disassembling this model of the TI-30X IIS manufactured April 2020 by Kinpo Electronics, Inc. in the Philippines reveals a well known internal construction centered around an unknown single-chip calculator circuit and powered by four small solar cells and a CR2025 backup battery. We discovered already in 2004 with Inventec Shanghai, Kinpo Electronics, Inc. and Nam Tai Electronics, Inc. three different contract manufacturers for the TI-30X IIS. Comparing two calculators with Date codes K-0304 and K-0409 yields no significant differences.

Inspecting the PCB of this TI-30X IIS calculator brought our attention to two small marks reading SR16N/N1-11 and SR16/SR16B-23, we noticed similar marks already with other Slide Rule calculators manufactured by Kinpo Electronics and started compiling a list of the PCB-Marks on calculators manufactured by OEMs for Texas Instruments.

In Summer 2020 four retailers used the design: Amazon, meijer and Office Depot / Office Max (in alphabetical order).

Don't miss the TI-30X IIS OGT introduced in Summer 2008.

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IIf you have additions to the above article please email:

Joerg Woerner, August 15, 2020. No reprints without written permission.