BC847CW/ZLF Equivalent & Substitute Parts

Part Overview

The BC847CW/ZLF is a Bipolar (BJT) Transistor manufactured by Nexperia USA Inc., housed in a Surface Mount SOT-323 package. This NPN transistor is rated for 45 V collector-emitter breakdown voltage and 100 mA maximum collector current. The part is currently listed as Obsolete, necessitating identification of active equivalent and substitute components that maintain electrical and mechanical compatibility for ongoing production and repair applications.

Key Parameters

Parameter	Value
Manufacturer Part Number	BC847CW/ZLF
Manufacturer	Nexperia USA Inc.
Category	Transistors, Bipolar (BJT)
Transistor Type	NPN
Package / Case	SC-70, SOT-323
Mounting Type	Surface Mount
Voltage - Collector Emitter Breakdown (Max)	45 V
Current - Collector (Ic) (Max)	100 mA
Product Status	Obsolete
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

Substitution of the BC847CW/ZLF is determined by strict alignment of the following electrical and mechanical parameters:

Critical Matching Parameters:

Transistor Type: NPN
Package / Case: SC-70, SOT-323
Voltage - Collector Emitter Breakdown (Max): 45 V
Current - Collector (Ic) (Max): 100 mA
Mounting Type: Surface Mount
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)
REACH Status: REACH Unaffected

All identified substitute parts meet these core requirements. Substitute parts are grouped into two categories based on product status and additional qualifications:

Category 1: Active Commercial-Grade Substitutes – Parts with Active product status from standard commercial manufacturers (Nexperia, onsemi, Diodes Incorporated, Taiwan Semiconductor Corporation, Micro Commercial Co). These parts maintain full electrical compatibility with the obsolete BC847CW/ZLF.

Category 2: Active Automotive-Grade Substitutes – Parts with Active product status, AEC-Q101 qualification, and Automotive grade designation (onsemi SBC847 series). These parts provide enhanced reliability for automotive applications while maintaining electrical compatibility.

Parameter Comparison

Part Number	Manufacturer	Product Status	Ic (Max)	Vce Breakdown (Max)	Vce Sat (Max)	hFE (Min) @ 2mA, 5V	Frequency - Transition	Power (Max)	Operating Temp	Grade	Qualification
BC847CW/ZLF	Nexperia USA Inc.	Obsolete	100 mA	45 V	Not specified	Not specified	Not specified	Not specified	Not specified	Standard	None
BC847CW,135	Nexperia USA Inc.	Active	100 mA	45 V	400 mV @ 5mA, 100mA	420 @ 2mA, 5V	100 MHz	200 mW	150°C (TJ)	Standard	None
BC847AWT1G	onsemi	Active	100 mA	45 V	600 mV @ 5mA, 100mA	110 @ 2mA, 5V	100 MHz	150 mW	-55°C ~ 150°C (TJ)	Standard	None
BC847BW-7-F	Diodes Incorporated	Active	100 mA	45 V	600 mV @ 5mA, 100mA	200 @ 2mA, 5V	300 MHz	200 mW	-65°C ~ 150°C (TJ)	Standard	None
BC847CW RFG	Taiwan Semiconductor Corporation	Active	100 mA	45 V	600 mV @ 5mA, 100mA	420 @ 2mA, 5V	100 MHz	200 mW	-55°C ~ 150°C (TJ)	Standard	None
BC847CW-TP	Micro Commercial Co	Active	100 mA	45 V	600 mV @ 5mA, 100mA	420 @ 2mA, 5V	100 MHz	Not specified	-65°C ~ 150°C (TJ)	Standard	None
SBC847AWT1G	onsemi	Active	100 mA	45 V	600 mV @ 5mA, 100mA	110 @ 2mA, 5V	100 MHz	150 mW	-55°C ~ 150°C (TJ)	Automotive	AEC-Q101
SBC847CWT1G	onsemi	Active	100 mA	45 V	600 mV @ 5mA, 100mA	420 @ 2mA, 5V	100 MHz	150 mW	-55°C ~ 150°C (TJ)	Automotive	AEC-Q101
SBC847CWT3G	onsemi	Active	100 mA	45 V	600 mV @ 5mA, 100mA	420 @ 2mA, 5V	100 MHz	150 mW	-55°C ~ 150°C (TJ)	Automotive	AEC-Q101

Engineering Selection Recommendations

For Direct Commercial Replacement:

BC847CW,135 (Nexperia USA Inc.) is the primary direct substitute. It maintains the same manufacturer lineage as the obsolete BC847CW/ZLF, carries Active product status, and provides identical electrical ratings (100 mA, 45 V, 100 MHz transition frequency, 200 mW power dissipation). This part is available in high inventory (15,718 units) and is packaged in Tape & Reel format.

BC847CW RFG (Taiwan Semiconductor Corporation) and BC847CW-TP (Micro Commercial Co) are functionally equivalent alternatives with Active status. BC847CW-TP offers the largest available inventory (5,000,300 units) and extended operating temperature range (-65°C to 150°C).

For Extended Temperature Range Applications:

BC847BW-7-F (Diodes Incorporated) provides the widest operating temperature range (-65°C to 150°C) and highest transition frequency (300 MHz) among commercial-grade substitutes. This part is suitable for applications requiring enhanced thermal performance or higher-frequency operation.

For Automotive Applications:

SBC847CWT3G, SBC847CWT1G, and SBC847AWT1G (all onsemi) are automotive-grade alternatives with AEC-Q101 qualification. These parts are required for automotive-grade designs and provide the same core electrical compatibility as the obsolete part. SBC847CWT3G and SBC847CWT1G offer hFE minimum of 420 @ 2mA, 5V, matching the performance characteristics of the original BC847CW/ZLF specification.

All substitute parts maintain ROHS3 compliance, REACH Unaffected status, and MSL 1 (Unlimited) moisture sensitivity rating, ensuring regulatory and environmental compatibility with the original part.

Frequently Asked Questions (FAQ)

Q: Can BC847CW/ZLF be directly replaced with any of the listed substitutes?

A: Yes. All listed substitute parts share identical package (SC-70, SOT-323), mounting type (Surface Mount), transistor type (NPN), and critical electrical ratings (45 V breakdown, 100 mA maximum collector current). Direct pin-for-pin substitution is supported for all listed parts.

Q: What is the difference between commercial-grade and automotive-grade BC847 substitutes?

A: Automotive-grade parts (SBC847 series) carry AEC-Q101 qualification and Automotive grade designation, indicating enhanced reliability testing and qualification for automotive applications. Commercial-grade parts (BC847 series) are suitable for general industrial and consumer applications. Both meet the same electrical specifications and package requirements.

Q: Which substitute offers the best performance for high-frequency applications?

A: BC847BW-7-F (Diodes Incorporated) provides the highest transition frequency at 300 MHz, compared to 100 MHz for most other substitutes. This part is suitable for applications requiring higher-frequency operation while maintaining all other electrical compatibility parameters.

Q: Are there inventory considerations when selecting a substitute?

A: Yes. BC847CW-TP (Micro Commercial Co) offers the largest available inventory at 5,000,300 units. BC847CW,135 (Nexperia USA Inc.) provides 15,718 units. For automotive applications, SBC847CWT1G offers 17,820 units. Inventory levels should be considered for production volume requirements.

Q: What is the difference between BC847AWT1G and BC847CWT1G?

A: Both are onsemi automotive-grade parts in SC-70-3 (SOT323) package with identical electrical ratings. The primary difference is DC current gain (hFE): BC847AWT1G has minimum hFE of 110 @ 2mA, 5V, while BC847CWT1G has minimum hFE of 420 @ 2mA, 5V. Selection depends on circuit requirements for current gain.

Q: Do all substitutes support the same operating temperature range?

A: No. Operating temperature ranges vary: BC847CW,135 operates to 150°C; BC847AWT1G, SBC847AWT1G, SBC847CWT1G, and SBC847CWT3G operate from -55°C to 150°C; BC847BW-7-F and BC847CW-TP operate from -65°C to 150°C. Application temperature requirements should determine substitute selection.

Q: Are all substitutes RoHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 Compliant and REACH Unaffected, matching the regulatory status of the obsolete BC847CW/ZLF.

Q: What packaging formats are available for substitutes?

A: Substitutes are available in Tape & Reel (TR) format for most parts, with BC847CW-TP also available in Cut Tape (CT) & Digi-Reel® format. All maintain the same SOT-323 package specification for PCB assembly compatibility.

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