Bipolar Transistors Offline

Search 50,000+ BJT transistors by specifications—even without internet.

Ilja Lebedevs · iljal.com.transistors

Not rated yet 100K+ downloads v6.1 7.2 MB Android 6.0+ PEGI 3 · Everyone

Download APK 7.2 MB All versions

Signature matches the Google Play version Details

Watch the Bipolar Transistors Offline trailer on YouTube

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At a glance

Latest version: v6.1 (102)
Updated: Oct 1, 2026 (8 days ago)
APK size: 7.2 MB
Requires: Android 6.0+ (API 23)
CPU support: Any (no native code)
Category: Education (app)
Listed since: Jan 14, 2023 (at least)
Permissions: 10
Developer contact: [email protected]
Privacy: Developer's privacy policy

About this APK

Bipolar Transistors Offline is an app by Ilja Lebedevs in the Education category, listed since at least January 2023. It has no native code, so it runs on any Android processor.

Since version 4.4, the APK grew from 5 MB to 7.2 MB and the minimum Android version rose from 4.1 to 6.0. It asks for 10 permissions, none of them sensitive. Compared with version 4.4, it adds 5 new permissions (“Access adservices ad id”, “Access adservices attribution”, “Access adservices topics” and 2 more) and drops 1 (“Receive push notifications”). The app can read the advertising ID that ad and analytics services use.

Description

From the listing uploaded by “appupdater”.

Find the right bipolar transistor without searching through dozens of websites. Bipolar Transistor Database contains more than 50,000 transistor records and works offline. Search by part number or filter components using the electrical parameters you already know. Features: • Search by full or partial part number • Filter by collector voltage, current, power and gain • Find devices by transition frequency (fT) • View important specifications in one place • Open external datasheets when more information is needed Useful for electronics repair, component identification, circuit design, students and radio amateurs. Component search works without an internet connection. Internet access is required only when opening an external datasheet.

Version history

2 versions are listed, going back to v4.4. Since v6.1 it requires Android 6.0+.

v6.1 LATEST Oct 1, 2026 7.2 MB TRUSTED v4.4 Jul 28, 2026 5 MB TRUSTED

All 2 versions

Security & authenticity

Security rating: Trusted

Signing certificate

Signature matches the Google Play version Checked by the source store on Oct 1, 2026.
Certificate issued to “Ilja Lebedevs” This is the certificate of the Google Play version.
Same certificate as the other version checked

Store checks and file details

Developer signature verified Oct 1, 2026
Validated against Google Play Oct 1, 2026
Signed byCN=Ilja Lebedevs
Signing certificate (SHA-1)EA:AA:D2:36:BB:74:91:65:E8:2B:B2:92:75:ED:10:DD:DA:9E:6A:30
File MD50452b351fd5a6d01f86d365c399a20ae
Uploaded by “appupdater” Gold tier · 117,810 followers · uploading since 2020

Scans and ratings come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures (1 other version compared). AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.

Permissions (10)

Bipolar Transistors Offline requests 10 permissions, none of them sensitive.

Access adservices ad id android.permission.ACCESS_ADSERVICES_AD_ID
Access adservices attribution android.permission.ACCESS_ADSERVICES_ATTRIBUTION
Access adservices topics android.permission.ACCESS_ADSERVICES_TOPICS
Advertising ID com.google.android.gms.permission.AD_ID
Full network access android.permission.INTERNET
Google Play install referrer com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE
Internal broadcast protection (app-defined) iljal.com.transistors.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Prevent the device from sleeping android.permission.WAKE_LOCK
Run foreground services android.permission.FOREGROUND_SERVICE
View network connections android.permission.ACCESS_NETWORK_STATE

Required hardware & features

Basic touch input android.hardware.faketouch

Bipolar Transistors Offline APK: questions and answers

Is there a version of Bipolar Transistors Offline for older Android phones?

The current version needs Android 6.0 or later. Version 4.4 is the newest listed build that installs on Android 4.1 and later. Get version 4.4 · All versions

Can I install this APK over the version I already have?

Yes, if your installed copy is older. It is signed like the Google Play version, so Android installs it as an update and keeps your data.

Is the Bipolar Transistors Offline APK safe?

No one can promise that a file is safe, but some things can be checked. The source store rates this file Trusted. Its signature matches the Google Play version. It is signed with the same certificate as the other version checked. After downloading, check that the file's MD5 is 0452b351fd5a6d01f86d365c399a20ae.