BF820W-QF Equivalent & Substitute Parts

Part Overview

The BF820W-QF is an NPN bipolar junction transistor manufactured by Nexperia USA Inc., designed for surface mount applications in automotive-grade circuits. This device operates at 300 V collector-emitter breakdown voltage with a maximum collector current of 50 mA and transition frequency of 60 MHz. The part is classified as Active product status and carries AEC-Q101 automotive qualification, making it suitable for demanding automotive and industrial applications requiring high reliability.

Substitute parts are identified when electrical and mechanical parameters align within the specified tolerances for this transistor category, enabling direct replacement in circuit designs without performance degradation.

Substiute Parts

BF820W-QF

Nexperia USA Inc.In Stock: 1037BF820W-QF Datasheet

Current PartRFQ

BF820W,115

Nexperia USA Inc.In Stock: 2985BF820W,115 Datasheet

Parametric EquivalentRFQ

BF820W,135

NXP USA Inc.In Stock: 56763BF820W,135 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the BF820W-QF are identified based on strict electrical and mechanical parameter matching. The substitution logic is based on the following critical parameters:

Electrical Parameters (Must Match):

• Transistor Type: NPN
• Current - Collector (Ic) Max: 50 mA
• Voltage - Collector Emitter Breakdown (Max): 300 V
• Vce Saturation (Max): 600 mV @ 5 mA, 30 mA
• Current - Collector Cutoff (Max): 10 nA
• DC Current Gain (hFE) Min: 50 @ 25 mA, 20 V
• Power - Max: 200 mW
• Frequency - Transition: 60 MHz
• Operating Temperature (TJ): 150°C

Mechanical Parameters (Must Match):

• Package / Case: SC-70, SOT-323
• Mounting Type: Surface Mount

Compliance Parameters (Must Match):

• Grade: Automotive
• Qualification: AEC-Q101
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

All identified substitute parts meet these criteria and are therefore electrically and mechanically interchangeable with the BF820W-QF in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

All three parts—BF820W-QF, BF820W,115, and BF820W,135—are classified as Active product status and carry identical electrical specifications, mechanical packaging, and automotive-grade certifications. Each part meets AEC-Q101 qualification requirements and ROHS3 compliance standards, confirming suitability for automotive and industrial applications.

Selection between these parts should be based on:

Packaging Availability: BF820W-QF and BF820W,115 are supplied in Tape & Reel (TR) format, suitable for automated assembly processes. BF820W,135 is supplied in Bulk packaging.

Inventory Considerations: BF820W,135 maintains the highest inventory level (56,660 pcs), followed by BF820W,115 (2,890 pcs), and BF820W-QF (941 pcs).

Supply Chain Requirements: All three parts are manufactured by Nexperia/NXP USA Inc., ensuring consistent quality and traceability within the same manufacturer ecosystem.

Frequently Asked Questions (FAQ)

Q: Can BF820W,115 be used as a direct replacement for BF820W-QF?

A: Yes. Both parts share identical electrical parameters (50 mA collector current, 300 V breakdown voltage, 60 MHz transition frequency, 200 mW power rating), identical mechanical packaging (SC-70, SOT-323 surface mount), and identical automotive-grade certifications (AEC-Q101, ROHS3 Compliant). The primary difference is packaging format: BF820W-QF is supplied in Tape & Reel, while BF820W,115 is also supplied in Tape & Reel. Direct substitution is supported.

Q: What is the difference between BF820W,135 and BF820W-QF?

A: Electrical and mechanical specifications are identical. The difference is packaging format: BF820W-QF is supplied in Tape & Reel (TR), while BF820W,135 is supplied in Bulk. Both maintain AEC-Q101 automotive qualification and ROHS3 compliance. Selection depends on assembly process requirements and inventory management.

Q: Are all three parts suitable for automotive applications?

A: Yes. All three parts carry Automotive grade classification and AEC-Q101 qualification, confirming compliance with automotive reliability and quality standards. Moisture Sensitivity Level (MSL) 1 (Unlimited) indicates no moisture-related handling restrictions.

Q: Can these parts be used interchangeably in high-frequency circuits?

A: Yes. All three parts specify identical transition frequency of 60 MHz and identical DC current gain characteristics (50 @ 25 mA, 20 V). Interchangeability is supported across frequency-dependent circuit applications within the specified operating range.

Q: What packaging format should be selected for automated assembly?

A: BF820W-QF and BF820W,115 are supplied in Tape & Reel (TR) format, which is standard for automated pick-and-place assembly. BF820W,135 is supplied in Bulk packaging, which requires manual handling or custom reel preparation. For automated manufacturing, select BF820W-QF or BF820W,115.