The **PUMZ1L-AL6-R** is a specialized surface-mount semiconductor device, specifically a **Dual Complementary Transistor**. It combines one NPN transistor and one PNP transistor into a single, compact SOT-363 (SC-88) package. --- ### 1. General Specifications This part is designed for general-purpose switching and amplification applications where space-saving is a priority. | Parameter | NPN Section | PNP Section | | :--- | :--- | :--- | | **Transistor Type** | NPN Silicon | PNP Silicon | | **Collector-Base Voltage ($V_{CBO}$)** | 50V | -50V | | **Collector-Emitter Voltage ($V_{CEO}$)** | 40V | -40V | | **Collector Current ($I_C$)** | 100mA | -100mA | | **Total Power Dissipation ($P_{tot}$)** | 150mW (Combined) | 150mW (Combined) | | **Package Type** | SOT-363 / SC-88 | SOT-363 / SC-88 | --- ### 2. Internal Configuration The "Z1" in the part number often indicates a specific internal pairing (Equivalent to a BC847 combined with a BC857). * **Pin 1:** Emitter (PNP) * **Pin 2:** Base (PNP) * **Pin 3:** Collector (NPN) * **Pin 4:** Emitter (NPN) * **Pin 5:** Base (NPN) * **Pin 6:** Collector (PNP) --- ### 3. Key Features and Benefits * **Complementary Pair:** Having both NPN and PNP in one housing allows for the design of push-pull output stages or complementary switching logic with a smaller footprint. * **Low Saturation Voltage:** Ideal for low-power battery-operated devices. * **AEC-Q101 Qualified:** Often used in automotive environments (depending on the specific manufacturer suffix like "-AL"). * **Reduced Component Count:** Replaces two discrete transistors, simplifying PCB assembly and reducing the Bill of Materials (BOM). --- ### 4. Common Applications * **Signal Logic:** Level shifting between different voltage domains. * **Small Load Switching:** Driving LEDs, buzzers, or small relays. * **Push-Pull Amplifiers:** Used in low-power audio or signal driver circuits. * **Automotive Electronics:** Interior lighting control or sensor signal conditioning. --- ### 5. Equivalent/Cross-Reference If the UTC (Unisonic Technologies) part is unavailable, similar functional equivalents include: * **NXP/Nexperia:** PUMZ1 * **ON Semi:** MUN5311DW1 * **Rohm:** UMG1N