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Product Detailed Parameters
- Description：TRANS 8NPN DARL 90V 400MA
- Series：-
- Mfr：STMicroelectronics
- Package：Tube
- Transistor Type：8 NPN Darlington
- Current - Collector (Ic) (Max)：400mA
- Voltage - Collector Emitter Breakdown (Max)：90V
- Vce Saturation (Max) @ Ib, Ic：2V @ 500µA, 300mA
- Current - Collector Cutoff (Max)：-
- DC Current Gain (hFE) (Min) @ Ic, Vce：-
- Power - Max：1.8W
- Frequency - Transition：-
- Operating Temperature：-25°C ~ 150°C (TJ)
- Mounting Type：-
- Package / Case：-
- Supplier Device Package：-
- Grade：-
- Qualification：-
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Overview
The L604C is an NPN Darlington transistor array manufactured by STMicroelectronics. It integrates eight independent channels within a single package, designed for driving inductive loads such as relays and solenoids. The device supports a maximum continuous collector current of 400 mA per channel and withstands a collector-emitter voltage up to 90 V. It features a low saturation voltage of 2 V and operates across a wide temperature range from -25 °C to +150 °C. The component is housed in an 18-pin PDIP package with dimensions of 24.8 x 7.1 x 5.1 mm.
Feature Summary
- Integrates eight independent NPN Darlington pairs for multi-channel load control
- Capable of driving high-current inductive loads with low saturation voltage
- Robust thermal performance supporting operation up to 150 °C junction temperature
Applications
- Driving electromagnetic relays
- Controlling DC solenoids
- Inductive load switching in industrial control systems
Procurement Notes
Verify the specific manufacturer part number against official STMicroelectronics documentation to ensure authenticity. Confirm that the package type matches the required 18-pin DIP configuration. Check datasheets for absolute maximum ratings to ensure compatibility with the target circuit's voltage and current requirements before procurement.
Selection Notes
Select this component when multiple independent high-current switching channels are required in a compact form factor. Ensure the application voltage does not exceed 90 V and the load current remains within the 400 mA limit per channel. Consider the thermal dissipation capabilities if operating near the upper temperature limits or with multiple active channels simultaneously.
Part Context
This component belongs to the family of Darlington transistor arrays produced by STMicroelectronics. These devices are specifically engineered to simplify the interface between low-power logic circuits and high-power inductive loads. The integration of multiple drivers reduces board space and simplifies design compared to using discrete transistors.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided source material. Verify pinout compatibility and electrical ratings with any alternative components before substitution.
