BC846BQBZ Equivalent & Substitute Parts

Part Overview

The BC846BQBZ is a small signal NPN bipolar junction transistor manufactured by Nexperia USA Inc. in a surface mount DFN1110D-3 package with wettable flank configuration. This device is classified as an active product and is widely used in signal amplification and switching applications requiring compact form factors and low power consumption. Equivalent and substitute parts are identified to support design flexibility, supply chain continuity, and application-specific requirements such as automotive qualification.

Substiute Parts

BC846BQBZ

Nexperia USA Inc.In Stock: 5608BC846BQBZ Datasheet

Current PartRFQ

BC846BQB-QZ

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

Parametric EquivalentRFQ

BC846BQBZ

Nexperia USA Inc.In Stock: 5608BC846BQBZ Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the BC846BQBZ are identified based on electrical and mechanical parameter equivalence within the BC846 series. All substitute parts maintain identical electrical specifications including collector current rating (100 mA maximum), collector-emitter breakdown voltage (65 V maximum), saturation voltage characteristics, DC current gain, power dissipation (340 mW), and transition frequency (100 MHz). All parts share the same package configuration (3-XDFN Exposed Pad, DFN1110D-3) and mounting type (Surface Mount, Wettable Flank).

The substitution logic is based on the following key parameters:

• Transistor Type: NPN
• Current - Collector (Ic) (Max): 100 mA
• Voltage - Collector Emitter Breakdown (Max): 65 V
• Power - Max: 340 mW
• Frequency - Transition: 100 MHz
• Package / Case: 3-XDFN Exposed Pad
• Supplier Device Package: DFN1110D-3
• Mounting Type: Surface Mount, Wettable Flank

Parameter Comparison

Engineering Selection Recommendations

All three parts—BC846BQBZ, BC846BQB-QZ, and BC846BQBZ—are active products from Nexperia USA Inc. with identical electrical and mechanical specifications. Selection between these parts is determined by application-specific compliance requirements.

BC846BQBZ is suitable for general-purpose small signal amplification and switching applications where automotive qualification is not required. This part maintains full RoHS3 compliance and unlimited moisture sensitivity rating.

BC846BQB-QZ is the automotive-qualified variant, carrying AEC-Q101 certification. This part is required for automotive applications and safety-critical systems where component qualification to automotive standards is mandatory. The BC846BQB-QZ maintains identical electrical performance and package configuration while meeting additional automotive reliability and testing requirements.

Both parts are interchangeable from an electrical and mechanical standpoint within their respective application domains. Selection should be based on whether the application requires automotive qualification per AEC-Q101 standards.

Frequently Asked Questions (FAQ)

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

A: Yes. The BC846BQB-QZ maintains identical electrical specifications and package configuration. The AEC-Q101 qualification is an additional certification that does not restrict use in non-automotive applications. However, cost considerations may apply.

Q: Are all three parts pin-compatible?

A: Yes. All parts use the 3-XDFN Exposed Pad package (DFN1110D-3) with identical pinout and mounting configuration. Direct PCB substitution is supported without layout modifications.

Q: What is the difference between BC846BQBZ and BC846BQB-QZ?

A: The primary difference is that BC846BQB-QZ carries AEC-Q101 automotive qualification, while BC846BQBZ does not. All electrical parameters, power ratings, frequency response, and package specifications are identical.

Q: Are these parts suitable for high-frequency applications?

A: Yes. All parts feature a transition frequency of 100 MHz, supporting high-frequency signal amplification and switching applications within this bandwidth limitation.

Q: What is the moisture sensitivity rating for these parts?

A: All parts carry MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. Standard handling and storage procedures apply without special moisture control requirements.

Q: Are these parts RoHS compliant?

A: Yes. All parts are ROHS3 compliant and REACH unaffected, meeting environmental and regulatory requirements for commercial and industrial applications.

Q: Can these parts be used interchangeably in existing designs?

A: Yes, provided the application does not require automotive qualification. If automotive qualification is required, BC846BQB-QZ must be used. Otherwise, BC846BQBZ and BC846BQB-QZ are electrically and mechanically interchangeable.