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Product Detailed Parameters
- Description：2SA1702S - SMALL SIGNAL BIPOLAR
- Series：*
- Mfr：onsemi
- Package：Bulk
- Transistor Type：-
- Voltage - Collector Emitter Breakdown (Max)：-
- Frequency - Transition：-
- Noise Figure (dB Typ @ f)：-
- Gain：-
- Power - Max：-
- DC Current Gain (hFE) (Min) @ Ic, Vce：-
- Current - Collector (Ic) (Max)：-
- Operating Temperature：-
- Mounting Type：-
- Package / Case：-
- Supplier Device Package：-
- Grade：-
- Qualification：-
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Overview
The 2SA1702S-AN is a PNP epitaxial planar silicon transistor manufactured by onsemi. It is housed in the SOT-323 surface-mount package, designated as CASE-99. The device is designed for high-speed switching applications and general-purpose amplification. Key electrical characteristics include a collector-emitter voltage rating of -50 V and a collector current capacity of -0.5 A. The component features a low collector-to-emitter saturation voltage to minimize power loss during conduction. It operates within a junction temperature range up to 150 °C and is available in tape-and-reel packaging for automated assembly processes.
Feature Summary
- High-speed switching capability optimized for digital logic interfaces
- Low collector-to-emitter saturation voltage for efficient power management
- Compact SOT-323 surface-mount footprint for space-constrained designs
Applications
- General-purpose amplifier circuits
- Switching regulators and DC-DC converter stages
- Logic level translation buffers
Procurement Notes
Verify the specific suffix 'AN' against the official datasheet to confirm the exact reel quantity and tape specifications. Ensure the ordering part number matches the required RoHS compliance status and packaging format. Cross-reference the manufacturer's latest documentation to confirm availability and any potential lifecycle changes before finalizing procurement plans.
Selection Notes
Select this component when a compact PNP transistor with moderate current handling is required for high-frequency switching. The SOT-323 package offers a smaller profile compared to traditional through-hole options. Evaluate the thermal requirements to ensure the junction temperature remains within safe operating limits under maximum load conditions.
Part Context
This transistor belongs to onsemi's lineup of small-signal bipolar junction transistors. It serves as a standard solution for replacing older discrete components in modern consumer electronics and industrial control boards. The device complements NPN counterparts in push-pull configurations and differential amplifier stages.
Replacement Considerations
Direct substitutes may include other PNP transistors in the SOT-323 package with matching -50V and -0.5A ratings. Verify pinout compatibility and hFE binning requirements before substitution.
