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Product Detailed Parameters
- Description：TRANS 3PNP 50V 3A 8-SIP
- Series：-
- Mfr：Sanken Electric USA Inc.
- Package：Bulk
- Transistor Type：3 PNP
- Current - Collector (Ic) (Max)：3A
- Voltage - Collector Emitter Breakdown (Max)：50V
- Vce Saturation (Max) @ Ib, Ic：1V @ 40mA, 2A
- Current - Collector Cutoff (Max)：100µA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce：100 @ 1A, 4V
- Power - Max：3W, 15W
- Frequency - Transition：-
- Operating Temperature：150°C (TJ)
- Mounting Type：Through Hole
- Package / Case：8-SIP
- Supplier Device Package：8-SIP
- Grade：-
- Qualification：-
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Overview
The STA322A is a PNP general-purpose transistor designed for switching applications. It features an absolute maximum collector-emitter voltage (VCEO) of -50 V and a continuous collector current (IC) rating of -3 A at 25°C ambient temperature. The device supports a peak collector current (ICP) of -5 A with a pulse width up to 1 ms and a duty cycle not exceeding 50%. Electrical characteristics include a DC current gain (hFE) ranging from 100 to 350 at VCE = -4 V and IC = -1 A, with a typical saturation voltage (VCE(sat)) of -1.0 V. The junction temperature (Tj) can reach 150 °C, and the storage temperature range spans from -40 °C to +150 °C.
Feature Summary
- High current handling capability suitable for general-purpose switching tasks
- Wide operating temperature range supporting industrial environments
- Defined saturation characteristics for efficient digital control
Applications
- General-purpose switching circuits
- Driver stages for relays or solenoids
- Logic interface buffers
Procurement Notes
Verify component authenticity through authorized Sanken Electric distributors. Confirm package integrity upon receipt. Check datasheet revisions for updates. Ensure proper thermal management during installation. Validate specifications against application requirements before integration.
Selection Notes
Evaluate thermal dissipation needs based on load current. Consider hFE variations across temperature ranges. Verify voltage margins for inductive loads. Assess switching speed requirements against available drive currents. Review safe operating area curves for pulsed operation scenarios.
Part Context
This component belongs to Sanken's general-purpose transistor lineup. It serves as a standard NPN/PNP alternative for discrete switching designs. The device complements other small-signal and power transistors in the manufacturer's portfolio for basic electronic circuit construction.
Replacement Considerations
Consult official substitution lists for equivalent PNP transistors with matching voltage and current ratings. Verify pinout compatibility before replacement. Ensure thermal performance meets original design constraints.
