BC848B,235 Equivalent & Substitute Parts

Part Overview

The BC848B,235 is an NPN bipolar junction transistor manufactured by Nexperia USA Inc., designed for general-purpose switching and amplification applications. This surface mount device operates at 30 V collector-emitter breakdown voltage with a maximum collector current of 100 mA and transition frequency of 100 MHz. The part is classified as Active product status with AEC-Q101 automotive qualification and ROHS3 compliance. Equivalent and substitute parts are identified to address supply chain continuity, packaging format preferences, and performance requirements across different manufacturing sources and device variants.

Key Parameters

Parameter	Value	Unit
Transistor Type	NPN	—
Voltage - Collector Emitter Breakdown (Max)	30	V
Current - Collector (Ic) (Max)	100	mA
Vce Saturation (Max) @ Ib, Ic	600 mV @ 5 mA, 100 mA	—
Current - Collector Cutoff (Max)	15	nA
DC Current Gain (hFE) (Min) @ Ic, Vce	200 @ 2 mA, 5 V	—
Power - Max	250	mW
Frequency - Transition	100	MHz
Operating Temperature (TJ)	150	°C
Mounting Type	Surface Mount	—
Package / Case	TO-236-3, SC-59, SOT-23-3	—
Grade	Automotive	—
Qualification	AEC-Q101	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the BC848B,235 are classified into two categories based on substitution criteria:

Parametric Equivalents share identical electrical specifications and automotive qualification but differ in packaging format (Cut Tape & Digi-Reel® versus Tape & Reel). These parts maintain full functional compatibility:

BC848B,215 (Nexperia USA Inc.)
BC849B,215 (Nexperia USA Inc.)
BC849B,235 (Nexperia USA Inc.)

Direct Substitutes maintain core electrical parameters (NPN type, 30 V breakdown, 100 mA collector current, 100 MHz transition frequency, 200 hFE minimum) but originate from different manufacturers or feature enhanced specifications. These parts are functionally compatible within the defined parameter envelope:

BC848B-7-F (Diodes Incorporated) — 300 MHz transition frequency, 300 mW power rating
BC848B-TP (Micro Commercial Co) — 225 mW power rating, 500 mV Vce saturation
BC848BLT1G (onsemi) — 300 mW power rating
BC848BLT3G (onsemi) — 300 mW power rating
BC849BLT1G (onsemi) — 300 mW power rating
NSVBC848CLT1G (onsemi) — 225 mW power rating
SBC848BLT1G (onsemi) — 300 mW power rating, AEC-Q101 qualified

Substitution is valid when the substitute part meets or exceeds the minimum electrical requirements of the application circuit and maintains compatible package geometry (TO-236-3, SC-59, SOT-23-3).

Parameter Comparison

Part Number	Manufacturer	Ic (Max) mA	Vce Breakdown (Max) V	Vce Sat (Max) mV	hFE (Min)	Power (Max) mW	Frequency (Max) MHz	Temp Range °C	Packaging	AEC-Q101
BC848B,235	Nexperia USA Inc.	100	30	600	200	250	100	to 150	TR	Yes
BC848B,215	Nexperia USA Inc.	100	30	600	200	250	100	to 150	CT	Yes
BC849B,215	Nexperia USA Inc.	100	30	600	200	250	100	to 150	CT	Yes
BC849B,235	Nexperia USA Inc.	100	30	600	200	250	100	to 150	TR	Yes
BC848B-7-F	Diodes Incorporated	100	30	600	200	300	300	-65 to 150	TR	No
BC848B-TP	Micro Commercial Co	100	30	500	200	225	100	-55 to 150	TR	No
BC848BLT1G	onsemi	100	30	600	200	300	100	-55 to 150	CT	No
BC848BLT3G	onsemi	100	30	600	200	300	100	-55 to 150	TR	No
BC849BLT1G	onsemi	100	30	600	200	300	100	-55 to 150	TR	No
NSVBC848CLT1G	onsemi	100	30	600	200	225	100	-55 to 150	TR	No
SBC848BLT1G	onsemi	100	30	600	200	300	100	-55 to 150	TR	Yes

Engineering Selection Recommendations

For Automotive Applications with AEC-Q101 Requirement:

Select BC849B,235, BC848B,215, BC849B,215, or SBC848BLT1G. These parts maintain AEC-Q101 qualification identical to the primary part BC848B,235. The Nexperia variants (BC848B,215, BC849B,215, BC849B,235) are direct parametric equivalents differing only in packaging format. SBC848BLT1G from onsemi provides AEC-Q101 qualification with enhanced power rating (300 mW) and extended temperature range (-55°C to 150°C).

For General-Purpose Applications Without Automotive Qualification:

BC848BLT1G, BC848BLT3G, BC849BLT1G, NSVBC848CLT1G, BC848B-7-F, and BC848B-TP are suitable. These parts meet or exceed the core electrical specifications. BC848B-7-F offers enhanced transition frequency (300 MHz) and power dissipation (300 mW). BC848B-TP provides lower Vce saturation (500 mV) at the cost of reduced power rating (225 mW).

Packaging Format Selection:

Tape & Reel (TR) packaging is appropriate for high-volume automated assembly. Cut Tape (CT) & Digi-Reel® packaging suits lower-volume or mixed-component orders. BC848B,215 and BC848BLT1G provide CT packaging alternatives to the TR-packaged BC848B,235.

Temperature Range Considerations:

The primary part BC848B,235 specifies maximum junction temperature of 150°C without explicit minimum. Substitute parts from onsemi and Diodes Incorporated specify operating ranges from -55°C or -65°C to 150°C, providing defined low-temperature performance for extended environmental applications.

Frequently Asked Questions (FAQ)

Q: Can BC849B variants substitute for BC848B variants?

A: Yes. BC849B,215 and BC849B,235 maintain identical electrical specifications to their BC848B counterparts (30 V breakdown, 100 mA collector current, 100 MHz transition frequency, 200 hFE minimum, 250 mW power). The BC849 designation indicates a different internal design or manufacturing process within the same functional class. Both are AEC-Q101 qualified and ROHS3 compliant.

Q: What is the difference between Tape & Reel (TR) and Cut Tape (CT) & Digi-Reel® packaging?

A: Tape & Reel packaging supplies components on continuous carrier tape wound on reels, optimized for high-speed automated pick-and-place assembly. Cut Tape & Digi-Reel® packaging provides components on cut tape segments or alternative reel formats, suitable for lower-volume production or mixed-component kits. Electrical performance is identical; packaging format affects supply chain logistics and assembly equipment compatibility.

Q: Are onsemi BC848BLT1G and BC848BLT3G interchangeable?

A: Yes, electrically. Both parts are identical in specifications (100 mA, 30 V, 100 MHz, 300 mW). The difference is packaging: BC848BLT1G is Cut Tape & Digi-Reel®, while BC848BLT3G is Tape & Reel. Select based on assembly process requirements.

Q: Does SBC848BLT1G offer advantages over BC848B,235?

A: SBC848BLT1G maintains AEC-Q101 qualification and adds enhanced specifications: 300 mW power rating (versus 250 mW), extended low-temperature operation (-55°C minimum), and onsemi manufacturing. Core electrical parameters (30 V, 100 mA, 100 MHz, 200 hFE) remain equivalent. Selection depends on power dissipation margin requirements and supply chain preference.

Q: Can BC848B-7-F from Diodes Incorporated be used in automotive applications?

A: BC848B-7-F is not AEC-Q101 qualified. It is suitable for general-purpose applications where automotive qualification is not required. The part offers enhanced transition frequency (300 MHz) and power rating (300 mW), with extended low-temperature range (-65°C to 150°C). Verify application requirements before substitution in automotive designs.

Q: What is the significance of the Vce saturation difference between BC848B-TP (500 mV) and BC848B,235 (600 mV)?

A: Lower Vce saturation indicates reduced voltage drop across the transistor in saturation mode, resulting in lower power dissipation and improved switching efficiency. BC848B-TP's 500 mV saturation is advantageous for low-power switching circuits. However, BC848B-TP has reduced power rating (225 mW versus 250 mW), requiring circuit-level thermal analysis before substitution.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance, matching the primary part BC848B,235. All parts are also REACH Unaffected and classified under ECCN EAR99.

Q: What is the Moisture Sensitivity Level (MSL) for these parts?

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

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