(if you have any problems or need something not listed, .)
| Software Nomenclature | Radios Associated With | Radio Use Manual | Radio Service Manual | Other Radio Information |
| KPG-1d | None | |||
| KPG-2d | None | |||
| KPG-3d v 2.60 | TK-805 (5 Tone) | |||
| KPG-4d | None | |||
| KPG-5d v 2.14 | TK-930, 931 | TK-930 TK-931 | ||
| KPG-6d v 1.30 | TK-705d, 805d, 706d, 806d | TK-705 TK-805 | ||
| KPG-7d v 2.01 | TK-630, 730, 830 | TK-630 TK-730 TK-830 | ||
| KPG-8d | None | |||
| KPG-9d v 1.40 | TK-240d, 340d | |||
| KPG-10d | None | |||
| KPG-11d v 1.25 | TK-230, 330 | |||
| KPG-12d v 2.23 | TK-930a, 931a | |||
| KPG-13d v 1.04 | TK-715, 815 (UK) & (MPT 1327 Trunked) | TK-715 | ||
| KPG-14d | None | |||
| KPG-15d v 1.01 | KDS-10 (Two Tone Decoder) | |||
| KPG-16d v 1.10 | TK-430, 431 (LTR) | |||
| KPG-17d | None | |||
| KPG-18d | None | |||
| KPG-19d | None | |||
| KPG-20d v 1.04 | TK-249t & e, 349t, 709t & e, 809t & e | |||
| KPG-21d v 2.00 | TKR-720, 820 & TKB-720, 820 | TKR-720 TKR-820 | Must use KTB-20 or 50 programmer | |
| KPG-22d | None | |||
| KPG-23d v 2.02 | TK-250, 350 | TK-250 TK-350 | Also Special Ham Version Available | |
| KPG-24d | None |
| Software Nomenclature | Radios Associated With | Radio Use Manual | Radio Service Manual | Other Radio Information |
| KPG-25d v 3.02 | TK-840, 940, 841, 941 | TK-940/941 | ||
| KPG-26d v 1.00 | TK-353 (LTR) | |||
| KPG-27d v 5.00 | TK-260, 360, 278, 378, 270, 370, 272, 372, 388 | TK-260, 270, 272, | ||
| KPG-28d v 2.00 | TK-759, 859, 752, 852 | TK-752/759 | ||
| KPG-29d v 4.00 | TK-760, 860, 762, 862, 768, 868 | TK-760, 762, 768, 860, 862, 868 | ||
| KPG-30d | None | |||
| KPG-31d v 2.00 | TK-255,355 (UK) (MPT 1327 Trunked) | |||
| KPG-32d v 1.21 | TK-259, 359 | |||
| KPG-33d | None | |||
| KPG-34d v 2.00 (LAB) | TK-261, 361 | |||
| KPG-35d v 2.00 | TK-480, 481 (V1 Only) | |||
| KPG-36d | None | |||
| KPG-37d | None | |||
| KPG-38d v 2.01 | TK-290, 390 Also KPG-38DN for Narrowband | TK-290 | ||
| KPG-39d | None | |||
| KPG-40d | None | |||
| KPG-41d v 1.12 | TK-715, 815, 255 | TK-715 | ||
| KPG-42d | None | |||
| KPG-43d | None | |||
| KPG-44d v 1.40, DN, FS | TK-690, 790, 890 (DN for Narrowband FS for CA Fire Service) | TK-690, TK-790, TK-890 | ||
| KPG-45d | None | |||
| KPG-46d | None | |||
| KPG-47d v 3.02 | TKR-830, 740, 840 | TK-740 TK-840 | ||
| KPG-48d v 1.01 (LAB) | TK-2100, 3100, 3101 | TK-2100 TK-3100 TK-3101 |
| Software Nomenclature | Radios Associated With | Radio Use Manual | Radio Service Manual | Other Radio Information |
| KPG-49d v 6.30 | TK-280, 380, 480, 980, 780, 880, 481, 981 | Guide to Fleetsync | ||
| KPG-50d | None | |||
| KPG-51d | None | |||
| KPG-52d v 1.00 | UBZ LH-14 | |||
| KPG-53d | None | |||
| KPG-54d v 1.00 (LAB) | TK-3101 | TK-3101 | ||
| KPG-55d v 4.20 | TK-2102AG, 3102AG, 2106Z, 3106Z, 2107, 3107 | TK-2102, 2106, 2107, 3102, 3106, 3107 | ||
| KPG-56d v 4.22, SCN | TK-260, 360, 278, 378, 388, 270, 370, 768, 868, 762, 862, 760, 860, 272, 372 (All G Models) | TK-378, 768, 868 | ||
| KPG-57d | None | |||
| KPG-58d v 1.00 | TK-290-11B German | TK-290-11B | ||
| KPG-59d v 3.02 | TK-190, 6110 | TK-190, TK-6110 | ||
| KPG-60d v 2.10 | TK-280, 380, 780, 880 | TK-280, 380, 780, 880 | ||
| KPG-61d | None | |||
| KPG-62d v 2.11 | TK-285, 385, 785, 885, 380MT, 880MT | TK-285, 385, 785, 885 | ||
| KPG-63d v 2.00 | TK-380, 880, 480, 980, 481, 981 (Passport) | TK-480, 980, 481, 981 | ||
| KPG-64d v 1.12 | TK-280, 380, 780, 880 (Passport ESN) | |||
| KPG-65ed v 1.00 | TK-280, 380, 780, 880 Fleetsync | |||
| KPG-66d v 2.01 | TKR-750, 850 (vs 1 Only) | TKR-750, 850 | ||
| KPG-67d v 2.11 | TK-260, 360, 270, 370, 760, 860, 762, 862 (All G Models) | |||
| KPG-68d | None | |||
| KPG-69d v 1.10 | TK-2118, 3118 | TK-2118, 3118 | ||
| KPG-70d v 3.11 | TK-7102, 8102, 7108, 8108 | TK-7102, 7108, 8102, 8108 | ||
| KPG-71dv 1.30 | KDS-100 MDT | KDS-100 | ||
| KPG-72d | None |
Using the datasheet for reference, you can filter through thousands of modern components to find the perfect match that will not only work but may even provide superior performance and reliability.
Modern replacement transistors often use the standard E-C-B or B-C-E configurations. Always compare the replacement's datasheet layout with the original board markings before soldering. Match the Gain ( hFEh sub cap F cap E end-sub
80 MHz (Fast enough for video output and high-fidelity audio) 🔍 What Makes a Datasheet "Better"?
To get the best performance out of the C1124, engineers look closely at its absolute maximum ratings and electrical characteristics. If you push any component beyond these limits, it will experience thermal runaway and fail prematurely.
Warning : Many sources list incorrect or incomplete pinouts. Always verify with the original manufacturer (e.g., NEC, Hitachi, Sanyo – original 2SC1124 makers). c1124 transistor datasheet better
If you are working on vintage audio equipment, old CRT monitors, or industrial control boards, you have likely come across the . While this component was a workhorse in its prime, obtaining a clear datasheet or finding a reliable replacement can be challenging today.
The 2SC1124 excels in push-pull Class AB audio configurations, working alongside the PNP counterpart to minimize crossover distortion, thanks to their matched hFEh sub cap F cap E end-sub and thermal characteristics. 2. Typical Applications of the 2SC1124
Understanding the 2SC1124 Transistor Datasheet: Key Features, Applications, and Better Alternatives
Different manufacturers (e.g., Sony, Sanyo, Toshiba) may list slightly different ratings for power dissipation and breakdown voltage. Always verify the specific brand's datasheet to avoid circuit failure. Counterfeit Risks: Using the datasheet for reference, you can filter
If you cannot find the original 2SC1124, technical resources like AllDatasheet and AllTransistors suggest considering these alternatives, though you should always verify pinouts and power ratings:
Because original stock is increasingly rare and subject to counterfeit or degraded parts, reading and understanding the is vital to securing a better, safer, and more reliable alternative for your circuit. 1. Key Technical Specifications
The 2SC1124 (often abbreviated as C1124) is a classic NPN epitaxial planar silicon transistor designed primarily for high-voltage applications, such as video output stages in televisions, audio amplifiers, and high-frequency switching circuits. Finding a "better" datasheet for this legacy component means locating documentation that provides high-clarity characteristic curves, precise thermal parameters, and explicit safe operating area (SOA) graphs.
The 2SC1124 is a, NPN epitaxial planar silicon transistor, often used in high-voltage, high-current applications such as color TV chroma output, video output, and audio power amplifiers. Match the Gain ( hFEh sub cap F
It handles significantly more current and handles heat much better, making the circuit run cooler and last longer.
2SC1124 - The Datasheet Archive
The search for a "c1124 transistor datasheet" will lead you to the full part number: . The "2S" prefix is a Japanese standard, where "2S" indicates a bipolar transistor, and "C" denotes an NPN-type material for high-frequency applications.
Based on the C1124 transistor datasheet, it appears to be a reliable and versatile option for general-purpose applications. Its high current gain, low power consumption, and wide range of applications make it a popular choice among electronics enthusiasts.
While the original 2SC1124 was excellent for CRT television video outputs, sourcing original, high-quality components today is difficult. The market is flooded with counterfeit legacy transistors that fail well below the stated 150V limit.
| Software Nomenclature | Radios Associated With | Radio Use Manual | Radio Service Manual | Other Radio Information |
| KPG-97d | None | |||
| KPG-98d v 2.08 | TK-2140, 3140 (Passport) | |||
| KPG-99d v 1.55 | TK-7160, 8160 | |||
| KPG-100d v 1.52 | TK-2212, 3212, 2217, 3217 | |||
| KPG-101d v 2.40, DC, DN, HNT | TK-2170, 3170, 3173 (DN for Narrowband) (HNT for 2170HNT) | |||
| KPG-102d v 2.01 | TK-90 (HF Transceiver) | |||
| KPG-103d | None | |||
| KPG-104d | None | |||
| KPG-105d | None | |||
| KPG-106d | None | |||
| KPG-107d v 1.01 | TK-3178 | |||
| KPG-108d v 2.00C1, DC | TK-3230 Portable XLS, DC for TK-3230, 3238 | |||
| KPG-109d v 3.00, DN | NXR-700, 800, 900, 901 Repeaters | |||
| KPG-110SM v 3.00 | NXR-700, 800, 900, 901 Repeaters | |||
| KPG-111d v 3.00, DN, DC | NX-200, 300, 210, 410, 411, 700H, 800H, 900, 901 | |||
| KPG-112d v 2.01, DN | TK-5220, 5320, 5720, 5820 | |||
| KPG-113AE v ?.?? | AES Encryption Key Loader | |||
| KPG-114DE v ?.?? | DES Encryption Key Loader | |||
| KPG-115d | None | |||
| KPG-116d | None | |||
| KPG-117d | None | |||
| KPG-118d v 1.22, DC | TK-2302, 3302, 2306, 3306, 2307, 3307 | |||
| KPG-119d v 2.00, DN, SW | TK-2302, 3302, 2302 & 3302 Protalk, (DN for Narrowband), SW for TK-2302, 3302 LMR | |||
| KPG-120d v 1.20 | TK-2300, 3300 LMR and Protalk |
| Software Nomenclature | Radios Associated With | Radio Use Manual | Radio Service Manual | Other Radio Information |
| KPG-121d v 1.01 | TK-3301e, 3301t | |||
| KPG-122d | None | |||
| KPG-123d v 1.01 | TK-2260EX, 3360EX | |||
| KPG-124d v 1.30, DN, DC | TK-7302, 8302 (DN for Narrowband) | |||
| KPG-125d | None | |||
| KPG-126d | None | |||
| KPG-127d v 1.10 | TK-3178L (MPT) | |||
| KPG-128d v 1.31, DN, DC | TK-2360, 3360 (DN for Narrowband) | |||
| KPG-129d v 1.50 | NXR-710, 810 | |||
| KPG-130d v ?.?? | TK-T300E TETRA | |||
| KPG-131d | None | |||
| KPG-132T v ?.?? | ?????? | |||
| KPG-133d | None | |||
| KPG-134d v 2.32, DN, DC | TK-2312, 3312, 2317, 3317 (DN for Narrowband) | |||
| KPG-135d v 2.11, DN | TK-7360, 8360 (DN for Narrowband) | |||
| KPG-136d | None | |||
| KPG-137d v 2.20 | TK-2000, 3000, TKU-300 | |||
| KPG-138d v 1.00 | TK-2310R | |||
| KPG-139d | None | |||
| KPG-140d | None | |||
| KPG-141d v 1.21, DN, DC | NX-220, 320, 720HG, 820HG | |||
| KPG-142d | None | |||
| KPG-143d v 1.10, DN | NX-200S, 300S, 210,410,411, 700H, 800H, 900, 901 (MPT) (DN for Narrowband) | |||
| KPG-144d | None |
| Software Nomenclature | Radios Associated With | Radio Use Manual | Radio Service Manual | Other Radio Information |
| KPG-145d | None | |||
| KPG-146d | None | |||
| KPG-147NC v 1.00 | KMC-51, 52 Mic Programmer | |||
| KPG-148d | None | |||
| KPG-149RM v 1.10 | NXR-700, 800, 710, 810 | |||
| KPG-150AP v 1.20 | Nexedge OTAP Software | |||
| KPG-151AE v ?.?? | KWD-AE21, KWD-DE21 Encryption | |||
| KPG-152d v ?.?? | TK-3310 | |||
| KPG-153d v ?.?? | TK-P721 | |||
| KPG-154d v ?.?? | TK-M721 | |||
| KPG-155d v ?.?? | TK-P701 | |||
| KPG-156d | None | |||
| KPG-157d | None | |||
| KPG-158d v 2.20 | TK-2402V, 2406, 2407, 3402U, 3407 | |||
| KPG-159DN v 1.05 | TK-2402V, 3402U LMR | |||
| KPG-160d v 1.00 | TK-2400, 3400 LMR & Protalk | |||
| KPG-161d | Not Yet Assigned | |||
| KPG-162d | Not Yet Assigned | |||
| KPG-163d | Not Yet Assigned | |||
| KPG-164d | Not Yet Assigned | |||
| KPG-165d | Not Yet Assigned | |||
| KPG-166d | Not Yet Assigned | |||
| KPG-167d | Not Yet Assigned | |||
| KPG-168d | Not Yet Assigned |
| Special Software | Version | Description | Remarks | |
| KAS-10 | 3.05 | AVL Dispatch Software | ||
| KGS-3 | ? | AVL Dispatch Software | ||