It appears you are referring to the **1034** series of electronic components. In the electronics industry, "1034" most commonly refers to specific transistors, battery cells, or integrated circuit packages. Below is a breakdown of the most common electronic parts associated with the number 1034. --- ### 1. The 2SD1034 Transistor The most frequent application of "1034" in component sourcing is the **2SD1034**, an NPN Power Transistor. | Feature | Specification | | :--- | :--- | | **Type** | NPN Silicon Transistor | | **Package** | TO-220 or TO-126 | | **Collector-Emitter Voltage ($V_{ceo}$)** | 20V - 30V (Typical) | | **Collector Current ($I_c$)** | 5A - 7A | | **Primary Use** | High-current switching and power amplification | ### 2. The 10340 Lithium-Ion Battery In the world of portable power, "1034" refers to the **10340** battery cell. The name is derived from its dimensions. * **Diameter:** 10mm * **Length:** 34mm * **Chemistry:** Lithium-Ion (3.7V nominal) * **Application:** Used in small LED flashlights, electronic cigarettes, and compact handheld devices where a standard AAA size is too large. ### 3. Surface Mount Device (SMD) Codes Sometimes "1034" is printed as a marking code on small SMD resistors or diodes: * **Resistors:** A resistor marked "1034" using the 4-digit coding system represents **103 x 10^4 Ω**, which equals **1.03 MΩ** (1.03 Megohms). * **Date Codes:** On many ICs, "1034" indicates the part was manufactured in the **34th week of 2010**. --- ### Summary Comparison Table | Part Category | Specific Name | Key Function | | :--- | :--- | :--- | | **Semiconductor** | 2SD1034 | High-speed power switching | | **Power Cell** | 10340 Battery | Rechargeable energy storage | | **Passive Component** | 1034 Resistor | 1.03 MΩ Resistance value | ---