BC847BM-TP Equivalent & Substitute Parts

Part Overview

The BC847BM-TP is an NPN bipolar junction transistor manufactured by Micro Commercial Co, designed for general-purpose switching and amplification applications. It features a 45 V collector-emitter breakdown voltage, 100 mA maximum collector current, and 100 MHz transition frequency in a surface mount SOT-883 package. The device is classified as obsolete, necessitating identification of active equivalent and substitute parts for ongoing design requirements and procurement continuity.

Substiute Parts

BC847BM-TP

Micro Commercial CoIn Stock: 938BC847BM-TP Datasheet

Current PartRFQ

BC847BL3-TP

Micro Commercial CoIn Stock: 800BC847BL3-TP Datasheet

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BC847BLP4-7B

Diodes IncorporatedIn Stock: 11007BC847BLP4-7B Datasheet

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BC847CM,315

Nexperia USA Inc.In Stock: 6608BC847CM,315 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the BC847BM-TP is determined by electrical and mechanical compatibility across the following critical parameters:

Electrical Compatibility Criteria:

• Transistor type must be NPN
• Maximum collector current (Ic) must be ≥ 100 mA
• Collector-emitter breakdown voltage (Vce(BR)CEO) must be ≥ 45 V
• Operating temperature range must encompass -55°C to 150°C or higher
• Transition frequency must be ≥ 100 MHz for frequency-dependent applications

Mechanical Compatibility Criteria:

• Surface mount mounting type
• Package compatibility: SOT-883 or equivalent footprint (DFN1006-3, X2-DFN1006-3)
• Moisture sensitivity level ≤ 1

Compliance Criteria:

• RoHS3 compliance required
• REACH unaffected status

The substitute parts identified below meet these criteria and are classified as either similar (equivalent electrical performance) or upgrade (enhanced specifications) alternatives.

Parameter Comparison

Engineering Selection Recommendations

BC847BL3-TP (Similar Substitute)

The BC847BL3-TP is an active equivalent from Micro Commercial Co with identical electrical ratings (100 mA, 45 V, NPN type). It maintains the same base product number (BC847) and RoHS3 compliance. The primary difference is the package format (DFN1006-3 versus SOT-883), which requires PCB layout modification. This substitute is suitable for new designs where package footprint can be accommodated. Incomplete datasheet specifications (Vce saturation, hFE, transition frequency not provided) require verification against application requirements before selection.

BC847BLP4-7B (Upgrade Substitute)

The BC847BLP4-7B, manufactured by Diodes Incorporated, is an active upgrade option with enhanced specifications. It provides identical electrical performance (100 mA, 45 V, 100 MHz) with higher power dissipation capability (250 mW versus unspecified for the main part). The device maintains full temperature range operation (-55°C to 150°C) and RoHS3 compliance. The X2-DFN1006-3 package requires PCB redesign. Significantly higher inventory availability (10,926 pcs) supports procurement continuity. This option is recommended for applications requiring enhanced thermal performance or where higher power dissipation margins are beneficial.

BC847CM,315 (Similar Substitute)

The BC847CM,315, manufactured by Nexperia USA Inc., is an active equivalent with identical package (SOT-883) and electrical ratings (100 mA, 45 V, 100 MHz). It provides enhanced DC current gain (hFE = 420 @ 2 mA, 5 V versus 220 for the main part) and higher power dissipation (250 mW). The device includes automotive-grade qualification (AEC-Q101) and is RoHS3 compliant. This substitute offers direct package compatibility with the BC847BM-TP, minimizing PCB redesign requirements. Higher inventory availability (6,514 pcs) supports procurement needs. This option is recommended for direct replacement applications where package compatibility is prioritized.

Frequently Asked Questions (FAQ)

Q: Can BC847BL3-TP be used as a direct replacement for BC847BM-TP?

A: The BC847BL3-TP is electrically equivalent but uses a different package (DFN1006-3 versus SOT-883). Direct PCB replacement is not possible without layout modification. Electrical compatibility is confirmed for the specified parameters.

Q: What are the key differences between BC847BLP4-7B and BC847BM-TP?

A: Both devices share identical electrical specifications (100 mA, 45 V, 100 MHz, NPN type). The BC847BLP4-7B offers higher power dissipation (250 mW), lower hFE (200 versus 220), and higher Vce saturation (600 mV versus 400 mV). The package differs (X2-DFN1006-3 versus SOT-883). The BC847BLP4-7B is manufactured by Diodes Incorporated and is currently in active production.

Q: Is BC847CM,315 a pin-compatible replacement?

A: Yes. The BC847CM,315 uses the same SOT-883 package as the BC847BM-TP, enabling direct PCB replacement without layout modification. Electrical parameters are compatible, with enhanced hFE (420 versus 220) and higher power rating (250 mW).

Q: What is the significance of the obsolete status of BC847BM-TP?

A: Obsolete status indicates the part is no longer manufactured by Micro Commercial Co. Existing inventory may be available from distributors, but long-term procurement cannot be guaranteed. Selection of an active substitute (BC847BL3-TP, BC847BLP4-7B, or BC847CM,315) is recommended for new designs and ongoing production requirements.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All identified substitute parts (BC847BL3-TP, BC847BLP4-7B, BC847CM,315) are RoHS3 compliant and REACH unaffected, matching the compliance status of the main part.

Q: Which substitute offers the best inventory availability?

A: BC847BLP4-7B provides the highest inventory availability at 10,926 pcs, followed by BC847CM,315 at 6,514 pcs, and BC847BL3-TP at 735 pcs. Inventory levels support procurement planning for volume production requirements.

Q: Can BC847BLP4-7B be used in applications requiring the exact Vce saturation of 400 mV?

A: No. The BC847BLP4-7B specifies Vce saturation of 600 mV @ 5 mA, 100 mA, which exceeds the 400 mV specification of the BC847BM-TP. Applications with strict saturation voltage requirements must use BC847CM,315 (400 mV) or verify compatibility with the higher saturation voltage.

Q: What package considerations apply when selecting a substitute?

A: BC847CM,315 maintains the SOT-883 package, requiring no PCB modification. BC847BL3-TP and BC847BLP4-7B use DFN1006-3 and X2-DFN1006-3 packages respectively, requiring PCB layout redesign. Package selection depends on design flexibility and production timeline constraints.