BC847B-QVL Equivalent & Substitute Parts

Part Overview

The BC847B-QVL 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 45 V collector-emitter breakdown voltage with a maximum collector current of 100 mA and 250 mW power dissipation. The part is qualified to AEC-Q101 automotive standards and carries Active product status with ROHS3 compliance.

Substitute parts are necessary when the primary part number becomes unavailable due to inventory constraints, packaging format requirements, or supply chain considerations. Alternative part numbers within the same electrical specification range provide equivalent functionality while accommodating different packaging formats or sourcing channels.

Key Parameters

Parameter	Value	Unit
Transistor Type	NPN	—
Voltage - Collector Emitter Breakdown (Max)	45	V
Current - Collector (Ic) (Max)	100	mA
Power - Max	250	mW
Frequency - Transition	100	MHz
DC Current Gain (hFE) (Min) @ Ic, Vce	200 @ 2mA, 5V	—
Vce Saturation (Max) @ Ib, Ic	400	mV @ 5mA, 100mA
Current - Collector Cutoff (Max)	15	nA
Operating Temperature (TJ)	150	°C
Package / Case	TO-236-3, SC-59, SOT-23-3	—
Mounting Type	Surface Mount	—
Grade	Automotive	—
Qualification	AEC-Q101	—

Substitute Part Grouping Explanation

Substitute parts for the BC847B-QVL are classified into two categories based on electrical and mechanical compatibility:

Parametric Equivalents maintain identical electrical specifications across all critical parameters: 45 V collector-emitter breakdown voltage, 100 mA maximum collector current, 250 mW power dissipation, 100 MHz transition frequency, 200 minimum DC current gain at specified conditions, and 400 mV maximum saturation voltage. These parts differ only in packaging format (Tape & Reel versus Cut Tape) or minor part number suffixes that do not affect electrical performance. Parametric equivalents include BC847B,215, BC847B,235, BC847B-QR, and BC850B variants.

Similar Parts share the same transistor type, voltage rating, current rating, and frequency characteristics but exhibit variations in secondary parameters such as power dissipation (200 mW versus 250 mW), saturation voltage (500 mV versus 400 mV), collector cutoff current (100 nA versus 15 nA), or DC current gain range. These parts are sourced from alternative manufacturers (Taiwan Semiconductor Corporation) and maintain functional compatibility within the same application envelope. Similar parts include BC847A RFG, BC847B RFG, and BC847C RFG.

Key Parameters Determining Substitution:

Collector-Emitter Breakdown Voltage: 45 V (fixed)
Maximum Collector Current: 100 mA (fixed)
Transition Frequency: 100 MHz (fixed)
Package Type: TO-236-3 / SOT-23-3 (fixed)
Mounting Type: Surface Mount (fixed)
DC Current Gain Minimum: 200 @ 2mA, 5V (parametric equivalents only)
Saturation Voltage: 400 mV (parametric equivalents); 500-600 mV (similar parts)

Parameter Comparison

Part Number	Manufacturer	Ic (Max) mA	Vce Breakdown (Max) V	Power (Max) mW	Frequency MHz	hFE (Min) @ 2mA, 5V	Vce Sat (Max) mV	Packaging	Status
BC847B-QVL	Nexperia USA Inc.	100	45	250	100	200	400	Tape & Reel	Active
BC847B,215	Nexperia USA Inc.	100	45	250	100	200	400	Cut Tape & Digi-Reel	Active
BC847B,235	Nexperia USA Inc.	100	45	250	100	200	400	Tape & Reel	Active
BC847B-QR	Nexperia USA Inc.	100	45	250	100	200	400	Tape & Reel	Active
BC847B/SNVL	Nexperia USA Inc.	100	45	250	100	200	400	—	Obsolete
BC850B,215	Nexperia USA Inc.	100	45	250	100	200	600	Cut Tape & Digi-Reel	Active
BC850B,235	Nexperia USA Inc.	100	45	250	100	200	600	Tape & Reel	Active
BC847A RFG	Taiwan Semiconductor Corporation	100	45	200	100	110	500	Tape & Reel	Active
BC847B RFG	Taiwan Semiconductor Corporation	100	45	200	100	200	500	Tape & Reel	Active
BC847C RFG	Taiwan Semiconductor Corporation	100	45	200	100	420	500	Tape & Reel	Active

Engineering Selection Recommendations

Parametric Equivalent Selection (Nexperia USA Inc. Parts)

BC847B,215 and BC847B,235 are direct parametric equivalents to BC847B-QVL, maintaining identical electrical specifications including 400 mV saturation voltage and 200 minimum DC current gain. Selection between these parts depends on packaging format requirements: BC847B,215 is supplied in Cut Tape & Digi-Reel format, while BC847B,235 is supplied in Tape & Reel format matching the original part. Both parts carry Active product status and AEC-Q101 automotive qualification.

BC847B-QR is an alternative Nexperia part within the BC847x-Q series, supplied in Tape & Reel format with identical electrical performance and Active status. This part is suitable for direct substitution in automotive applications requiring AEC-Q101 compliance.

BC847B/SNVL carries Obsolete product status and should not be selected for new designs or long-term supply requirements, despite maintaining equivalent electrical specifications.

BC850B Variants (Nexperia USA Inc.)

BC850B,215 and BC850B,235 are parametric equivalents with one critical difference: maximum saturation voltage is 600 mV compared to 400 mV for BC847B variants. This higher saturation voltage may affect circuit performance in applications with tight saturation specifications. Both parts maintain 100 mA collector current, 45 V breakdown voltage, 250 mW power dissipation, and AEC-Q101 qualification. Selection is appropriate only when saturation voltage tolerance permits the 200 mV increase.

Taiwan Semiconductor Corporation Alternatives

BC847A RFG, BC847B RFG, and BC847C RFG are sourced from Taiwan Semiconductor Corporation and exhibit reduced power dissipation (200 mW versus 250 mW), higher saturation voltage (500 mV versus 400 mV), and higher collector cutoff current (100 nA versus 15 nA). These parts maintain the same collector current, breakdown voltage, and transition frequency. DC current gain varies by grade: BC847A RFG provides 110 minimum, BC847B RFG provides 200 minimum, and BC847C RFG provides 420 minimum. These parts are suitable for applications where the reduced power rating and higher saturation voltage are acceptable. All three parts carry Active status and ROHS3 compliance.

Compliance and Certification

All recommended parametric equivalents (BC847B,215, BC847B,235, BC847B-QR, BC850B,215, BC850B,235) maintain AEC-Q101 automotive qualification, ROHS3 compliance, and Active product status. Taiwan Semiconductor Corporation alternatives (BC847A RFG, BC847B RFG, BC847C RFG) carry ROHS3 compliance and Active status but do not specify AEC-Q101 qualification. Selection of Taiwan Semiconductor alternatives requires verification that automotive qualification is not a mandatory requirement for the application.

Frequently Asked Questions (FAQ)

Q: Can BC847B,215 be used as a direct replacement for BC847B-QVL?

A: Yes. BC847B,215 is a parametric equivalent with identical electrical specifications: 45 V breakdown voltage, 100 mA collector current, 250 mW power dissipation, 100 MHz transition frequency, 200 minimum DC current gain, and 400 mV saturation voltage. The only difference is packaging format (Cut Tape & Digi-Reel versus Tape & Reel). Both parts are manufactured by Nexperia USA Inc. and carry AEC-Q101 automotive qualification and Active product status.

Q: What is the difference between BC847B and BC850B variants?

A: BC847B and BC850B variants share identical voltage, current, frequency, and power specifications. The primary difference is saturation voltage: BC847B maintains 400 mV maximum saturation voltage, while BC850B maintains 600 mV maximum saturation voltage. This 200 mV difference may affect circuit performance in applications with tight saturation specifications or low-voltage switching requirements. Both series are AEC-Q101 qualified and manufactured by Nexperia USA Inc.

Q: Are Taiwan Semiconductor Corporation parts (BC847A RFG, BC847B RFG, BC847C RFG) suitable replacements?

A: Taiwan Semiconductor Corporation parts maintain the same collector current (100 mA), breakdown voltage (45 V), and transition frequency (100 MHz) as the Nexperia BC847B-QVL. However, they differ in three parameters: reduced power dissipation (200 mW versus 250 mW), higher saturation voltage (500 mV versus 400 mV), and higher collector cutoff current (100 nA versus 15 nA). These parts are suitable only when the application tolerates these parameter variations. Additionally, these parts do not specify AEC-Q101 automotive qualification, which may be a requirement for automotive applications.

Q: What does the part number suffix indicate (,215 versus ,235 versus -QR)?

A: The suffixes indicate different packaging and distribution formats. BC847B,215 is supplied in Cut Tape & Digi-Reel format. BC847B,235 is supplied in Tape & Reel format. BC847B-QR is supplied in Tape & Reel format within the BC847x-Q automotive-qualified series. All three maintain identical electrical specifications and are manufactured by Nexperia USA Inc. Selection depends on packaging format compatibility with assembly equipment and supply chain requirements.

Q: Why is BC847B/SNVL listed as Obsolete?

A: BC847B/SNVL carries Obsolete product status, indicating that Nexperia USA Inc. has discontinued this part number. Although it maintains equivalent electrical specifications to BC847B-QVL, it should not be selected for new designs or applications requiring long-term supply assurance. Active alternatives such as BC847B,215, BC847B,235, or BC847B-QR should be used instead.

Q: How do DC current gain variations (hFE) affect part selection?

A: DC current gain (hFE) determines the amplification factor of the transistor. BC847B-QVL specifies 200 minimum hFE at 2 mA collector current and 5 V collector-emitter voltage. BC847A RFG provides 110 minimum hFE, BC847B RFG provides 200 minimum hFE, and BC847C RFG provides 420 minimum hFE. Parts with lower hFE require higher base current to achieve the same collector current, affecting circuit biasing and power consumption. Parts with higher hFE provide greater amplification. Selection must match the application's biasing requirements and gain specifications.

Q: Can parts with different saturation voltages be interchanged?

A: Saturation voltage determines the minimum voltage drop across the transistor when fully conducting. BC847B variants maintain 400 mV saturation voltage, BC850B variants maintain 600 mV saturation voltage, and Taiwan Semiconductor Corporation parts maintain 500 mV saturation voltage. In switching applications with tight voltage margins or low-voltage logic circuits, these differences may affect circuit performance. In general-purpose amplification applications with adequate voltage headroom, interchangeability is acceptable. Circuit analysis is required to confirm compatibility.

Q: What is the significance of AEC-Q101 qualification?

A: AEC-Q101 is an automotive industry qualification standard that certifies transistors for use in automotive applications. It specifies reliability, temperature cycling, and performance requirements suitable for automotive environments. BC847B-QVL and all Nexperia parametric equivalents (BC847B,215, BC847B,235, BC847B-QR, BC850B,215, BC850B,235) carry AEC-Q101 qualification. Taiwan Semiconductor Corporation parts (BC847A RFG, BC847B RFG, BC847C RFG) do not specify AEC-Q101 qualification. For automotive applications, AEC-Q101 qualified parts are required unless the application is non-automotive.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All parts listed in this reference—BC847B-QVL, BC847B,215, BC847B,235, BC847B-QR, BC847B/SNVL, BC850B,215, BC850B,235, BC847A RFG, BC847B RFG, and BC847C RFG—carry ROHS3 compliance status. ROHS3 compliance certifies that the parts do not contain restricted hazardous substances as defined by the Restriction of Hazardous Substances Directive.

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