BC327-16-AP Equivalent & Substitute Parts

Part Overview

The BC327-16-AP is a PNP bipolar junction transistor manufactured by Micro Commercial Co, designed for general-purpose switching and amplification applications. This device features a 45 V collector-emitter breakdown voltage, 800 mA maximum collector current, and 625 mW power dissipation capability in a Through Hole TO-92 package.

The BC327-16-AP is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this transistor.

Substiute Parts

BC327-16-AP

Micro Commercial CoIn Stock: 1036BC327-16-AP Datasheet

Current PartRFQ

KSP2907ATA

Fairchild SemiconductorIn Stock: 17508KSP2907ATA Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BC327-16-AP is determined by electrical and mechanical compatibility within the following parameters:

Electrical Compatibility Criteria:

• Transistor type must be PNP
• Collector-emitter breakdown voltage must equal or exceed 45 V
• Maximum collector current must equal or exceed 800 mA
• Maximum power dissipation must equal or exceed 625 mW
• Transition frequency must support the intended application frequency range
• DC current gain (hFE) must meet or exceed 100 at specified operating conditions

Mechanical Compatibility Criteria:

• Mounting type must be Through Hole
• Package must be TO-92-3 or equivalent TO-226-3 form factor
• Lead configuration must be compatible with existing PCB layouts

The KSP2907ATA meets the mechanical requirements and shares the same package form factor. However, electrical parameter deviations exist and must be evaluated against specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

BC327-16-AP (Primary Part - Obsolete): The BC327-16-AP is obsolete and no longer in active production. Existing inventory of 1013 pieces is available. This part is ROHS3 compliant and REACH unaffected. Selection of this part is limited to applications where existing stock is available and no alternative is required.

KSP2907ATA (Active Substitute): The KSP2907ATA is an active product manufactured by Fairchild Semiconductor with 17,400 pieces in stock. This part is suitable for new designs and ongoing production where the BC327-16-AP is unavailable.

Key Differences Affecting Selection:

The KSP2907ATA exhibits the following deviations from the BC327-16-AP:

• Maximum collector current is 600 mA versus 800 mA (25% reduction)
• Collector-emitter breakdown voltage is 60 V versus 45 V (33% increase)
• Vce saturation is 1.6 V versus 700 mV at specified conditions (higher saturation voltage)
• Transition frequency is 200 MHz versus 260 MHz (23% reduction)

Applications requiring the full 800 mA collector current or 260 MHz transition frequency of the BC327-16-AP cannot use the KSP2907ATA as a direct substitute. Applications operating below 600 mA and 200 MHz can accommodate the KSP2907ATA within the higher voltage rating and saturation characteristics.

Frequently Asked Questions (FAQ)

Q: Can the KSP2907ATA directly replace the BC327-16-AP in all applications?

A: No. The KSP2907ATA has a maximum collector current of 600 mA compared to the BC327-16-AP's 800 mA. Applications requiring collector currents between 600 mA and 800 mA cannot use the KSP2907ATA. Additionally, the KSP2907ATA has a higher Vce saturation voltage (1.6 V versus 700 mV), which affects switching performance in saturation-mode applications.

Q: Are the packages physically compatible?

A: Yes. Both the BC327-16-AP and KSP2907ATA use the TO-92-3 package with formed leads. The physical footprint and pin configuration are compatible with existing PCB layouts designed for the BC327-16-AP.

Q: What is the significance of the higher breakdown voltage in the KSP2907ATA?

A: The KSP2907ATA has a 60 V collector-emitter breakdown voltage compared to the BC327-16-AP's 45 V. This provides additional voltage margin in applications operating near the maximum voltage rating. However, this difference does not affect substitution suitability for applications designed within the 45 V specification.

Q: How do the transition frequencies compare?

A: The BC327-16-AP has a transition frequency of 260 MHz, while the KSP2907ATA operates at 200 MHz. For applications requiring high-frequency switching or amplification above 200 MHz, the KSP2907ATA may not meet performance requirements.

Q: What is the impact of the Vce saturation difference?

A: The BC327-16-AP saturates at 700 mV (at 50 mA base current, 500 mA collector current), while the KSP2907ATA saturates at 1.6 V under the same conditions. In switching applications where low saturation voltage is critical for minimizing power loss or maintaining signal integrity, this 900 mV difference is significant and must be evaluated against circuit requirements.

Q: Is the KSP2907ATA suitable for new designs?

A: Yes. The KSP2907ATA is an active product with substantial inventory availability. It is suitable for new designs where the electrical parameters (600 mA maximum collector current, 200 MHz transition frequency, and 1.6 V saturation voltage) meet application requirements.

Q: What compliance certifications apply to both parts?

A: The BC327-16-AP is ROHS3 compliant and REACH unaffected. Compliance information for the KSP2907ATA is not provided in the available data.