2N7052_D74Z Equivalent & Substitute Parts

Part Overview

The 2N7052_D74Z is an NPN Darlington bipolar junction transistor manufactured by onsemi, designed for general-purpose switching and amplification applications. This device features a 100 V collector-emitter breakdown voltage rating and supports collector currents up to 1.5 A, with a maximum power dissipation of 625 mW in a Through Hole TO-92-3 package.

The 2N7052_D74Z is classified as an obsolete product. Equivalent substitute parts are available in active production status with identical or superior electrical characteristics, making substitution necessary for new designs and ongoing procurement requirements.

Substiute Parts

2N7052_D74Z

onsemiIn Stock: 12102N7052_D74Z Datasheet

Current PartRFQ

NZT7053

onsemiIn Stock: 18546NZT7053 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 2N7052_D74Z is determined by electrical parameter equivalence across the following critical specifications:

Electrical Equivalence Criteria:

• Transistor topology: NPN Darlington configuration
• Maximum collector current: 1.5 A
• Collector-emitter breakdown voltage: 100 V
• DC current gain (hFE): minimum 1000 @ 1 A, 5 V
• Saturation voltage: 1.5 V @ 100 µA, 100 mA
• Collector cutoff current: 200 nA maximum
• Transition frequency: 200 MHz
• Operating temperature range: -55°C to 150°C

Packaging Considerations: Substitute parts may employ different mounting technologies (Through Hole versus Surface Mount) provided all electrical parameters remain within specification. Package form factor changes require circuit board redesign but do not affect functional compatibility when electrical ratings are maintained.

The NZT7053 qualifies as a direct electrical equivalent with enhanced power dissipation capability (1 W versus 625 mW) and active product status, suitable for replacement in new designs and legacy system updates.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The 2N7052_D74Z is classified as obsolete. The NZT7053 is an active production part from the same manufacturer (onsemi) with identical electrical specifications and superior power handling capability. Selection of the NZT7053 ensures long-term availability and supply chain continuity.

Compliance and Certification: Both the 2N7052_D74Z and NZT7053 maintain REACH Unaffected status and carry identical Moisture Sensitivity Level (MSL) ratings of 1 (Unlimited). The NZT7053 additionally carries RoHS3 compliance certification, meeting current regulatory requirements for new product designs.

Packaging and Integration: The primary distinction between these parts is mounting technology. The 2N7052_D74Z uses Through Hole TO-92-3 packaging, while the NZT7053 employs Surface Mount SOT-223-4 packaging. Circuit board redesign is required when transitioning between these package types. Both devices maintain identical electrical performance within their respective thermal and mechanical constraints.

Thermal Performance: The NZT7053 provides enhanced power dissipation (1 W versus 625 mW), offering improved thermal margin in applications approaching the original device's power limits.

Frequently Asked Questions (FAQ)

Q: Can the NZT7053 directly replace the 2N7052_D74Z in existing circuit boards?

A: Electrical substitution is complete; all electrical parameters are identical. However, physical replacement requires circuit board modification due to package differences. The 2N7052_D74Z uses Through Hole TO-92-3 leads, while the NZT7053 uses Surface Mount SOT-223-4 pads. Adapter solutions or board redesign are necessary for physical installation.

Q: What are the key electrical parameters that define substitution compatibility?

A: Substitution compatibility is determined by: NPN Darlington topology, 1.5 A maximum collector current, 100 V collector-emitter breakdown voltage, 1000 minimum DC current gain at 1 A and 5 V, 1.5 V saturation voltage at specified bias conditions, 200 nA maximum collector cutoff current, 200 MHz transition frequency, and -55°C to 150°C operating temperature range.

Q: Why is the NZT7053 rated for higher power dissipation (1 W versus 625 mW)?

A: The NZT7053 employs Surface Mount SOT-223-4 packaging, which provides superior thermal coupling to the printed circuit board compared to Through Hole TO-92-3 packaging. This enhanced thermal path enables higher power dissipation ratings while maintaining identical electrical performance.

Q: Are there compliance differences between the 2N7052_D74Z and NZT7053?

A: Both devices maintain REACH Unaffected status and identical Moisture Sensitivity Level (MSL) ratings. The NZT7053 carries additional RoHS3 compliance certification, making it suitable for applications requiring current regulatory compliance. The 2N7052_D74Z, as an obsolete part, does not carry RoHS3 certification.

Q: What is the impact of product status on component selection?

A: The 2N7052_D74Z is obsolete and subject to supply discontinuation. The NZT7053 is in active production, ensuring availability for new designs and ongoing procurement. Selection of active production parts eliminates supply risk and supports long-term system maintainability.

Q: Are there electrical performance differences between these devices?

A: No. All specified electrical parameters are identical: collector current, breakdown voltage, saturation voltage, cutoff current, DC current gain, transition frequency, and operating temperature range. The NZT7053 provides identical electrical performance with enhanced thermal capability through superior package design.