MC1413P

Overview

The MC1413P is a high-voltage, high-current Darlington transistor array manufactured by onsemi. It integrates seven NPN Darlington-connected transistors within a single package. The device features an internal suppression diode connected to the common emitter pin (Pin 9) to manage inductive load flyback currents. Each input channel includes a 2.7 kΩ series resistor, facilitating direct interfacing with 5.0 V TTL or CMOS logic families. The maximum continuous collector current per output is 500 mA, and the collector-emitter breakdown voltage is rated at 50 V. The component is housed in a 16-pin PDIP package.

Feature Summary

• Integrates seven NPN Darlington pairs for high-gain switching applications
• Includes built-in clamp diodes to protect against inductive load voltage spikes
• Features integrated 2.7 kΩ input resistors for simplified logic interface

Applications

• Driving incandescent lamps
• Controlling electromagnetic relays
• Actuating printer hammers

Procurement Notes

Verify the specific ordering suffix to confirm the package type and shipping configuration. The 'P' suffix indicates a 16-lead Plastic Dual In-Line Package (PDIP). Confirm availability status as some variants in this family may be discontinued. Ensure the selected part meets the required ambient temperature range specifications for the target application environment.

Selection Notes

Select the MC1413P when a through-hole mounting solution is required for driving moderate-power inductive or resistive loads. This variant is appropriate for systems operating with 5.0 V logic levels due to the integrated input resistors. Consider thermal management requirements if multiple channels are driven simultaneously, as junction-to-ambient thermal resistance impacts power dissipation capabilities.

Part Context

The MC1413P belongs to the MC1413 family of high-voltage Darlington arrays produced by onsemi. This family also includes surface-mount variants such as the MC1413D and MC1413DG, which utilize SOIC-16 packaging. The MC1413B variant offers an extended operating temperature range compared to the standard MC1413. All variants share identical electrical characteristics and pin configurations.

Replacement Considerations

Direct functional substitutes include the ULN2003A and ULQ2003A arrays, though pinouts and internal resistor values may differ. Verify compatibility with existing PCB footprints and logic voltage levels before substitution.