BC 847C B5003 Equivalent & Substitute Parts

Part Overview

The BC 847C B5003 is an NPN bipolar junction transistor manufactured by Infineon Technologies, designed for general-purpose switching and amplification applications. This device operates at a maximum collector voltage of 45 V with a collector current rating of 100 mA and a transition frequency of 250 MHz. The part is packaged in SOT-23-3 (TO-236-3) surface mount configuration with a maximum power dissipation of 330 mW.

The BC 847C B5003 is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements. Substitute parts must maintain electrical compatibility across critical parameters including collector-emitter breakdown voltage, maximum collector current, DC current gain, and saturation voltage characteristics.

Key Parameters

Parameter	Value	Unit
Transistor Type	NPN	—
Voltage - Collector Emitter Breakdown (Max)	45	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	420 @ 2 mA, 5 V	—
Power - Max	330	mW
Frequency - Transition	250	MHz
Operating Temperature (TJ)	150	°C
Mounting Type	Surface Mount	—
Package / Case	TO-236-3, SC-59, SOT-23-3	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the BC 847C B5003 are selected based on strict electrical and mechanical parameter compatibility. The substitution logic is organized around the following critical parameters:

Electrical Compatibility Criteria:

Transistor Type: NPN (required match)
Voltage - Collector Emitter Breakdown (Max): 45 V (required match)
Current - Collector (Ic) (Max): 100 mA (required match)
DC Current Gain (hFE) (Min) @ Ic, Vce: 420 @ 2 mA, 5 V (required match)
Current - Collector Cutoff (Max): 15 nA (required match)

Mechanical Compatibility Criteria:

Mounting Type: Surface Mount (required match)
Package / Case: TO-236-3, SC-59, SOT-23-3 (required match)
Moisture Sensitivity Level (MSL): 1 (Unlimited) (required match)

Allowable Parameter Variations:

Vce Saturation (Max) @ Ib, Ic: 400 mV to 600 mV (within acceptable range)
Power - Max: 225 mW to 350 mW (within acceptable range)
Frequency - Transition: 100 MHz to 300 MHz (within acceptable range)
Operating Temperature: -65°C to 150°C (within acceptable range)

Substitute parts are grouped into two categories: parametric equivalents from Infineon Technologies and direct manufacturer alternatives from Nexperia USA Inc., Diodes Incorporated, Micro Commercial Co, onsemi, and Rohm Semiconductor.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Ic (Max) mA	Vce Breakdown (Max) V	Vce Sat (Max) mV	hFE (Min)	Power (Max) mW	Frequency MHz	Package	Product Status
BC 847C B5003	Infineon Technologies	100	45	600	420	330	250	SOT-23-3	Obsolete
BC847CE6433HTMA1	Infineon Technologies	100	45	600	420	330	250	SOT-23-3	Last Time Buy
BC850CE6327HTSA1	Infineon Technologies	100	45	600	420	330	250	SOT-23-3	Obsolete
BC847C,215	Nexperia USA Inc.	100	45	400	420	250	100	SOT-23-3	Active
BC847C,235	Nexperia USA Inc.	100	45	400	420	250	100	SOT-23-3	Active
BC847C-7-F	Diodes Incorporated	100	45	600	420	300	300	SOT-23-3	Active
BC847C-TP	Micro Commercial Co	100	45	500	420	225	100	SOT-23-3	Active
BC847CLT1G	onsemi	100	45	600	420	300	100	SOT-23-3	Active
BC847CT116	Rohm Semiconductor	100	45	600	420	350	200	SOT-23-3	Not For New Designs
BC850C,215	Nexperia USA Inc.	100	45	600	420	250	100	SOT-23-3	Active
BC850C,235	Nexperia USA Inc.	100	45	600	420	250	100	SOT-23-3	Active

Engineering Selection Recommendations

Recommended Primary Substitutes (Active Product Status):

The following parts are recommended as primary substitutes due to active product status and full electrical compatibility:

BC847C,235 (Nexperia USA Inc.) — This part maintains all critical electrical parameters including 45 V collector-emitter breakdown voltage, 100 mA maximum collector current, and 420 minimum DC current gain. The part is AEC-Q101 qualified for automotive applications and carries ROHS3 compliance. Packaging is Tape & Reel (TR) with 109,071 units in stock. Vce saturation is 400 mV, which is within acceptable range. Transition frequency is 100 MHz, lower than the original 250 MHz but sufficient for general-purpose switching applications.

BC847CLT1G (onsemi) — This part provides full electrical compatibility with 45 V breakdown voltage, 100 mA collector current, and 420 minimum DC current gain. Product status is active with 80,100 units in stock. Power dissipation is 300 mW, and transition frequency is 100 MHz. ROHS3 compliant with MSL 1 rating.

BC847C-7-F (Diodes Incorporated) — This part offers the highest transition frequency at 300 MHz among active substitutes, exceeding the original 250 MHz specification. All critical electrical parameters match: 45 V breakdown, 100 mA collector current, 420 minimum DC current gain. Power dissipation is 300 mW. Product status is active with 16,152 units in stock. ROHS3 compliant.

Secondary Substitutes (Parametric Equivalents from Infineon):

BC847CE6433HTMA1 (Infineon Technologies) — This parametric equivalent maintains identical electrical specifications to the original BC 847C B5003, including 250 MHz transition frequency and 330 mW power dissipation. Product status is Last Time Buy with 1,026 units in stock. This part is suitable for applications requiring exact frequency matching.

Substitutes Not Recommended for New Designs:

BC847CT116 (Rohm Semiconductor) — Product status is Not For New Designs. While electrical parameters are compatible, this designation indicates the manufacturer does not recommend this part for new circuit designs.

Substitutes with Lower Power Ratings:

BC847C-TP (Micro Commercial Co) — This part has a reduced maximum power dissipation of 225 mW compared to the original 330 mW. While all critical electrical parameters match, applications requiring higher power dissipation may not be suitable. Transition frequency is 100 MHz. Product status is active with 1,000,200 units in stock.

Frequently Asked Questions (FAQ)

Q1: Can BC847C,235 replace BC 847C B5003 in all applications?

BC847C,235 maintains all critical electrical parameters: 45 V collector-emitter breakdown voltage, 100 mA maximum collector current, and 420 minimum DC current gain. The part is mechanically compatible with SOT-23-3 packaging. Vce saturation is 400 mV versus 600 mV in the original, which is within acceptable range. Transition frequency is 100 MHz versus 250 MHz in the original. For applications where the 250 MHz frequency is not a design requirement, BC847C,235 is a direct replacement. For high-frequency applications requiring 250 MHz or higher, BC847C-7-F is recommended.

Q2: What is the difference between BC847C and BC850C variants?

Both BC847C and BC850C maintain identical electrical specifications: 45 V breakdown voltage, 100 mA collector current, 420 minimum DC current gain, and SOT-23-3 packaging. The primary difference is the base product number designation. Both are available from Nexperia USA Inc. in active product status. Selection between these variants should be based on availability and packaging format (Cut Tape vs. Tape & Reel).

Q3: Why does BC847C-7-F have a higher transition frequency than the original?

BC847C-7-F from Diodes Incorporated specifies a transition frequency of 300 MHz, which exceeds the original BC 847C B5003 specification of 250 MHz. This represents a performance enhancement rather than a limitation. All other critical electrical parameters remain compatible. Applications designed for 250 MHz operation will function correctly with this part, as it exceeds the frequency requirement.

Q4: Is BC847CLT1G suitable for automotive applications?

BC847CLT1G from onsemi is ROHS3 compliant and carries MSL 1 rating. However, the provided data does not indicate AEC-Q101 automotive qualification for this part. BC847C,215 and BC847C,235 from Nexperia USA Inc. explicitly carry AEC-Q101 qualification and automotive grade designation. For automotive applications, Nexperia parts are recommended.

Q5: What does "Last Time Buy" status mean for BC847CE6433HTMA1?

Last Time Buy status indicates that Infineon Technologies will accept orders for this part for a limited time before discontinuation. This part maintains identical electrical specifications to the original BC 847C B5003, including 250 MHz transition frequency. For applications requiring exact frequency matching, this part is suitable for current production runs but should not be selected for long-term supply planning.

Q6: Can BC847C-TP be used in high-power applications?

BC847C-TP has a maximum power dissipation of 225 mW, which is lower than the original BC 847C B5003 specification of 330 mW. Applications requiring sustained power dissipation above 225 mW should not use this part. For general-purpose switching applications with moderate power requirements, BC847C-TP is compatible. High-power applications should select BC847CT116 (350 mW) or BC847CLT1G (300 mW).

Q7: Are all substitute parts ROHS3 compliant?

All substitute parts listed carry ROHS3 compliance status. The original BC 847C B5003 does not specify ROHS status in the provided data. All substitute parts also maintain MSL 1 (Unlimited) moisture sensitivity level, matching the original specification.

Q8: What packaging formats are available for substitutes?

Substitute parts are available in multiple packaging formats: Cut Tape (CT) & Digi-Reel, Tape & Reel (TR), and supplier-specific formats such as PG-SOT23 and TO-236AB. All parts maintain SOT-23-3 physical package compatibility. Selection of packaging format should be based on assembly process requirements and inventory management practices.

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