BC846BQB-QZ Equivalent & Substitute Parts

Part Overview

The BC846BQB-QZ is an NPN small-signal bipolar junction transistor manufactured by Nexperia USA Inc. in a surface-mount DFN1110D-3 package with wettable flank configuration. This device is designed for general-purpose switching and amplification applications requiring low-power operation at frequencies up to 100 MHz. The part is actively produced and carries automotive-grade qualification under AEC-Q101, making it suitable for both commercial and automotive applications. Substitute parts are identified based on matching electrical characteristics, mechanical compatibility, and manufacturing specifications to ensure direct functional replacement in existing designs.

Substiute Parts

BC846BQB-QZ

Nexperia USA Inc.In Stock: 5806BC846BQB-QZ Datasheet

Current PartRFQ

BC846BQBZ

Nexperia USA Inc.In Stock: 5608BC846BQBZ Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BC846BQB-QZ is determined by equivalence across the following critical parameters:

Electrical Characteristics:

• Transistor type (NPN)
• Maximum collector current (100 mA)
• Collector-emitter breakdown voltage (65 V)
• Saturation voltage (400 mV @ 5 mA, 100 mA)
• Collector cutoff current (15 nA)
• Minimum DC current gain (200 @ 2 mA, 5 V)
• Maximum power dissipation (340 mW)
• Transition frequency (100 MHz)
• Operating temperature range (150°C TJ)

Mechanical & Manufacturing Specifications:

• Package type (3-XDFN Exposed Pad)
• Supplier device package (DFN1110D-3)
• Mounting configuration (Surface Mount, Wettable Flank)
• Moisture sensitivity level (MSL 1)

Compliance & Certification:

• RoHS3 compliance
• Automotive grade qualification (AEC-Q101)
• Product status (Active)

Parts meeting all these criteria are classified as parametric equivalents and direct substitutes.

Parameter Comparison

Engineering Selection Recommendations

Both the BC846BQB-QZ and BC846BQBZ are active production parts manufactured by Nexperia USA Inc. with identical electrical specifications and mechanical packaging. Selection between these parts is based on availability and supply chain considerations rather than technical differentiation.

BC846BQB-QZ is suitable for applications requiring automotive-grade qualification under AEC-Q101 with confirmed active production status and established supply inventory.

BC846BQBZ provides an equivalent alternative with matching electrical performance, identical package configuration (DFN1110D-3), and equivalent compliance certifications (ROHS3, AEC-Q101). This part is appropriate for direct substitution in designs currently specified for BC846BQB-QZ.

Both parts are classified as small-signal NPN transistors for switching and amplification in low-power circuits operating at frequencies up to 100 MHz. The wettable flank surface-mount configuration ensures reliable solder joint formation in automated assembly processes. MSL 1 rating indicates unlimited shelf life under standard storage conditions.

Frequently Asked Questions (FAQ)

Q: Can BC846BQBZ be used as a direct replacement for BC846BQB-QZ in production?

A: Yes. BC846BQBZ is a parametric equivalent with identical electrical characteristics, package type (DFN1110D-3), mounting configuration (Surface Mount, Wettable Flank), and compliance certifications. Direct substitution is supported without circuit redesign.

Q: Are there differences in the package or pin configuration between these parts?

A: No. Both parts use the 3-XDFN Exposed Pad package with DFN1110D-3 supplier device package designation. Pin configuration, pad layout, and wettable flank specifications are identical.

Q: What is the significance of the wettable flank feature?

A: The wettable flank configuration on the DFN1110D-3 package improves solder wetting during reflow assembly, enhancing joint reliability and enabling automated optical inspection of solder connections on the package flanks.

Q: Do both parts meet automotive qualification requirements?

A: Yes. Both BC846BQB-QZ and BC846BQBZ carry AEC-Q101 automotive-grade qualification and are suitable for automotive applications.

Q: What is the moisture sensitivity level, and how does it affect handling?

A: Both parts are rated MSL 1 (Unlimited), indicating no moisture sensitivity. These components can be stored and handled under standard conditions without special desiccant packaging or bake-out procedures prior to assembly.

Q: Are these parts RoHS compliant?

A: Yes. Both parts are ROHS3 compliant, confirming the absence of restricted substances including lead, cadmium, and hexavalent chromium.

Q: What applications are suitable for these NPN transistors?

A: These small-signal NPN transistors are designed for general-purpose switching and amplification in low-power circuits. The 100 MHz transition frequency supports high-frequency signal processing. Maximum ratings of 100 mA collector current and 340 mW power dissipation define the operating envelope for circuit design.