MMS9012-L-TP Equivalent & Substitute Parts Reference

Part Overview

The MMS9012-L-TP is a PNP Bipolar Junction Transistor (BJT) in the Transistors, Bipolar (BJT) component category. It features surface mount packaging (SOT-23), a 25 V maximum collector-emitter voltage, 500 mA maximum collector current, and is rated for operation from -55°C to 150°C junction temperature. The product is currently active, but sourcing alternative models is often required for reasons including supply chain continuity, packaging preferences, or fulfillment of specific compliance requirements.

Key Parameters

Manufacturer Part Number	Transistor Type	Current - Collector (Ic) (Max)	Voltage - Collector Emitter Breakdown (Max)	Vce Saturation (Max) @ Ib, Ic	Current - Collector Cutoff (Max)	DC Current Gain (hFE) (Min) @ Ic, Vce	Power - Max	Frequency - Transition	Operating Temperature	Mounting Type	Package / Case	Supplier Device Package	Product Status
MMS9012-L-TP	PNP	500 mA	25 V	600mV @ 50mA, 500mA	100nA	120 @ 50mA, 1V	300 mW	150MHz	-55°C ~ 150°C (TJ)	Surface Mount	TO-236-3, SC-59, SOT-23-3	SOT-23	Active

Substitute Part Grouping Explanation

Parts are grouped as substitutes when they strictly match the following parameters: transistor type (PNP), maximum collector current (500 mA), maximum collector-emitter breakdown voltage (25 V), collector cutoff current (100 nA), mounting type (Surface Mount), power dissipation (300 mW), package compatibility (TO-236-3, SC-59, SOT-23-3/SOT-23), and operating temperature range (-55°C ~ 150°C (TJ)). Only components meeting all these criteria are considered equivalent for direct substitution in the same application context.

Parameter Comparison

Parameter	MMS9012-L-TP	BC808-25LT1G
Manufacturer	Micro Commercial Co	onsemi
Category	Transistors, Bipolar (BJT)	Transistors, Bipolar (BJT)
Transistor Type	PNP	PNP
Current - Collector (Ic) (Max)	500 mA	500 mA
Voltage - Collector Emitter Breakdown (Max)	25 V	25 V
Vce Saturation (Max) @ Ib, Ic	600mV @ 50mA, 500mA	700mV @ 50mA, 500mA
Current - Collector Cutoff (Max)	100nA	100nA (ICBO)
DC Current Gain (hFE) (Min) @ Ic, Vce	120 @ 50mA, 1V	160 @ 100mA, 1V
Power - Max	300 mW	300 mW
Frequency - Transition	150MHz	100MHz
Operating Temperature	-55°C ~ 150°C (TJ)	-55°C ~ 150°C (TJ)
Mounting Type	Surface Mount	Surface Mount
Package / Case	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3
Supplier Device Package	SOT-23	SOT-23-3 (TO-236)
Product Status	Active	Active

Engineering Selection Recommendations

Both MMS9012-L-TP and BC808-25LT1G are listed as active products. The substitute part BC808-25LT1G is ROHS3 compliant, moisture sensitivity level 1 (unlimited), and REACH unaffected. Product compliance status and inventory availability support their application as equivalent choices in contexts requiring these certifications.

Frequently Asked Questions (FAQ)

Which key parameters must match when substituting MMS9012-L-TP in bipolar transistor category applications?
Substitution is based on matching transistor type, maximum collector current, maximum collector-emitter voltage, cutoff current, power rating, package compatibility, and operating temperature range.

Are MMS9012-L-TP and BC808-25LT1G compatible in terms of package and mounting?
Both parts use surface mount technology and share compatible package designations (TO-236-3, SC-59, SOT-23-3/SOT-23).

Do these substitutes have equal or better electrical characteristics for all listed parameters?
All specified key parameters are matched or exceeded as listed. Exact datasheet review is necessary for any additional parameters not provided.

How do compliance and inventory status affect substitute selection?
Current product status (active) and regulatory compliance (e.g., ROHS3, REACH unaffected) confirm suitability under the given inventory and application conditions.

Is mechanical fit guaranteed between the supplied part numbers?
Parts share the same package/case and supplier device package, supporting direct substitution where these mechanical constraints are required.

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