BCV26_L99Z Equivalent & Substitute Parts

Part Overview

The BCV26_L99Z is a PNP Darlington bipolar junction transistor manufactured by onsemi, housed in a SOT-23-3 surface mount package. This component is designed for applications requiring moderate current switching with integrated Darlington configuration, delivering 1.2 A maximum collector current at 30 V breakdown voltage with 350 mW power dissipation capability.

The BCV26_L99Z carries an obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support ongoing production requirements for legacy systems or redesign initiatives.

Substiute Parts

BCV26_L99Z

onsemiIn Stock: 1121BCV26_L99Z Datasheet

Current PartRFQ

BCV26

onsemiIn Stock: 185204BCV26 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BCV26_L99Z is determined by strict equivalence across the following critical parameters:

Electrical Specifications:

• Transistor configuration: PNP - Darlington topology
• Maximum collector current: 1.2 A
• Collector-emitter breakdown voltage: 30 V
• Saturation voltage: 1 V @ 100 µA, 100 mA
• DC current gain (hFE): 20000 minimum @ 100 mA, 5 V
• Power dissipation: 350 mW
• Transition frequency: 220 MHz
• Collector cutoff current: 100 nA maximum

Mechanical & Environmental Specifications:

• Package type: SOT-23-3 (TO-236-3, SC-59)
• Mounting: Surface mount
• Operating temperature: -55°C to 150°C
• Moisture sensitivity: MSL 1

Parts meeting all these parameters are classified as parametric equivalents and direct substitutes. Deviations in any electrical or mechanical specification disqualify a part from substitution without circuit redesign.

Parameter Comparison

Engineering Selection Recommendations

BCV26 (onsemi) is the direct parametric equivalent and recommended substitute for BCV26_L99Z.

Justification:

The BCV26 maintains identical electrical and mechanical specifications across all critical parameters: PNP Darlington configuration, 1.2 A collector current, 30 V breakdown voltage, 350 mW power rating, 220 MHz transition frequency, and SOT-23-3 package. Both parts share the same base product number (BCV26) and are manufactured by onsemi.

Key Advantage: The BCV26 carries an active product status, ensuring ongoing availability and supply chain support. This contrasts with the obsolete BCV26_L99Z, which presents long-term sourcing risk.

Compliance Consideration: The BCV26 is certified ROHS3 compliant, meeting current environmental and regulatory requirements for new designs and production runs.

Packaging Availability: The BCV26 is available in Cut Tape (CT) and Digi-Reel® packaging formats, providing flexibility for both prototype and high-volume manufacturing environments.

No circuit modifications, thermal management adjustments, or layout changes are required when substituting BCV26 for BCV26_L99Z.

Frequently Asked Questions (FAQ)

Q: Can BCV26 be used as a direct replacement for BCV26_L99Z in existing designs?

A: Yes. The BCV26 is a direct parametric equivalent with identical electrical specifications, saturation characteristics, current gain, power dissipation, and SOT-23-3 package dimensions. No circuit redesign is necessary.

Q: What is the difference between BCV26_L99Z and BCV26?

A: The primary difference is product status. BCV26_L99Z is obsolete, while BCV26 is active. Both parts are manufactured by onsemi and share identical electrical and mechanical specifications. The BCV26 is available in standard packaging formats (Cut Tape and Digi-Reel®) with ROHS3 compliance certification.

Q: Are there any thermal or performance differences between these parts?

A: No. Both parts operate within the same temperature range (-55°C to 150°C), dissipate 350 mW maximum power, and deliver identical DC current gain (20000 minimum @ 100 mA, 5 V) and transition frequency (220 MHz).

Q: Can I use BCV26 in high-volume production?

A: Yes. The BCV26 is actively manufactured and available in production-grade packaging (Cut Tape and Digi-Reel®). Active product status ensures consistent supply and manufacturing support for high-volume applications.

Q: Does the SOT-23-3 package remain the same?

A: Yes. Both BCV26_L99Z and BCV26 use the SOT-23-3 package (also designated TO-236-3 or SC-59). PCB footprints, land patterns, and assembly processes are identical.

Q: Is RoHS compliance a concern when switching from BCV26_L99Z to BCV26?

A: The BCV26 is ROHS3 compliant, meeting current environmental regulations. If your application requires RoHS certification, the BCV26 satisfies this requirement. The BCV26_L99Z RoHS status was not specified in available documentation.

Q: What is the moisture sensitivity level for both parts?

A: Both BCV26_L99Z and BCV26 carry MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. Standard handling and storage procedures apply without special desiccant or humidity control requirements.