MC1413D

Overview

The MC1413D is a high voltage, high current Darlington transistor array manufactured by onsemi. It integrates seven NPN Darlington-connected transistors within a single SOIC-16 package (Case 751B). Each channel includes an internal 2.7 kΩ series input resistor, facilitating direct interfacing with 5.0 V TTL or CMOS logic circuits. The device supports a maximum continuous collector current of 500 mA and features a 50 V output breakdown voltage. Internal suppression diodes are incorporated to manage inductive load switching. The component operates within an ambient temperature range of -20°C to +85°C.

Feature Summary

• Integrates seven NPN Darlington pairs with built-in 2.7 kΩ base resistors for simplified logic interface
• Includes internal suppression diodes to protect against voltage spikes from inductive loads
• Supports peak inrush currents up to 500 mA suitable for driving incandescent lamps

Applications

• Driving relays in industrial control systems
• Actuating printer hammers in office equipment
• Switching incandescent lamps in consumer electronics

Procurement Notes

Verify the specific ordering suffix 'D' corresponds to the SOIC-16 tube packaging configuration containing 48 units per rail. Confirm that the procurement source provides the original manufacturer datasheet to validate electrical characteristics against the February 2026 revision. Ensure the component meets the required thermal resistance specifications for the intended application environment.

Selection Notes

Select this component when a multi-channel driver is required for moderate current loads without external base resistors. The integrated 2.7 kΩ resistors simplify circuit design for 5V logic systems. Consider the thermal resistance values if multiple channels operate simultaneously at high duty cycles to ensure junction temperatures remain within safe operating limits.

Part Context

This part belongs to the MC1413 family, which also includes variants like the MC1413B and NCV1413B. These devices share the same core architecture but differ in operating temperature ranges and automotive qualification requirements. The MC1413D specifically denotes the standard commercial grade version packaged in a surface-mount SOIC-16 format.

Replacement Considerations

Direct functional substitutes include the ULN2003A series, though pinout configurations may differ. Verify compatibility regarding input voltage thresholds and saturation voltages before substitution. Check for availability of equivalent packages such as PDIP-16 if through-hole mounting is required.