2N3906RLRPG Equivalent & Substitute Parts

Part Overview

The 2N3906RLRPG is a PNP bipolar junction transistor manufactured by onsemi, rated for 40 V collector-emitter breakdown voltage and 200 mA maximum collector current. This device is packaged in a TO-92 through-hole configuration and is classified as obsolete. Due to its obsolete product status, equivalent substitute parts with active availability are necessary for new designs and production continuity. All substitute parts listed maintain electrical and mechanical compatibility with the original specification.

Key Parameters

Parameter	Value	Unit
Transistor Type	PNP	—
Current - Collector (Ic) Max	200	mA
Voltage - Collector Emitter Breakdown (Max)	40	V
Vce Saturation (Max)	400 mV @ 5 mA, 50 mA	—
DC Current Gain (hFE) Min	100 @ 10 mA, 1 V	—
Power - Max	625	mW
Frequency - Transition	250	MHz
Operating Temperature	-55 to 150	°C
Mounting Type	Through Hole	—
Package / Case	TO-92-3 (TO-226)	—

Substitute Part Grouping Explanation

Substitution of the 2N3906RLRPG is determined by strict equivalence across the following electrical and mechanical parameters:

Transistor Type: PNP configuration
Maximum Collector Current: 200 mA
Collector-Emitter Breakdown Voltage: 40 V
Saturation Voltage: 400 mV @ 5 mA, 50 mA
DC Current Gain (hFE): Minimum 100 @ 10 mA, 1 V
Maximum Power Dissipation: 625 mW or greater
Transition Frequency: 250 MHz
Operating Temperature Range: -55°C to 150°C
Mounting Configuration: Through Hole
Package Type: TO-92-3 (TO-226) form factor

All substitute parts listed maintain these specifications without deviation. Packaging variants (Cut Tape, Bulk) represent different distribution formats of electrically identical devices.

Parameter Comparison

Part Number	Manufacturer	Ic (Max) mA	Vce Breakdown (Max) V	Vce Sat (Max) mV	hFE (Min)	Power (Max) mW	Frequency MHz	Temp Range °C	Package	Product Status
2N3906RLRPG	onsemi	200	40	400	100	625	250	-55 to 150	TO-92-3	Obsolete
2N3906TA	Fairchild Semiconductor	200	40	400	100	625	250	-55 to 150	TO-92-3	Active
2N3906TAR	onsemi	200	40	400	100	625	250	-55 to 150	TO-92-3	Active
2N3906TF	onsemi	200	40	400	100	625	250	-55 to 150	TO-92-3	Active
2N3906TFR	onsemi	200	40	400	100	625	250	-55 to 150	TO-92-3	Active
2N3906-AP	Micro Commercial Co	200	40	400	100	600	250	-55 to 150	TO-92-3	Obsolete

Engineering Selection Recommendations

Primary Substitutes (Active Product Status)

The 2N3906TAR, 2N3906TF, and 2N3906TFR from onsemi are recommended as primary substitutes. All three maintain identical electrical specifications to the original 2N3906RLRPG and carry active product status, ensuring long-term availability and supply chain continuity. These parts are RoHS3 compliant and REACH unaffected. The 2N3906TAR is available in Cut Tape packaging with 9,200 units in stock. The 2N3906TF and 2N3906TFR are also available in Cut Tape format with 1,300 and 1,340 units respectively.

Secondary Substitute (Alternative Manufacturer)

The 2N3906TA from Fairchild Semiconductor is an active product with identical electrical specifications. This part is available in Bulk packaging with 32,320 units in stock, providing an alternative sourcing option from a different manufacturer.

Obsolete Alternatives (Not Recommended for New Designs)

The 2N3906-AP from Micro Commercial Co is classified as obsolete and carries a maximum power rating of 600 mW compared to 625 mW for the primary substitutes. This part should not be selected for new production designs.

Frequently Asked Questions (FAQ)

Q: Can the 2N3906TAR directly replace the 2N3906RLRPG in existing circuit designs?

A: Yes. The 2N3906TAR maintains identical electrical parameters including collector current (200 mA), breakdown voltage (40 V), saturation voltage (400 mV), current gain (100 minimum), power dissipation (625 mW), and operating temperature range (-55°C to 150°C). Both devices use the TO-92-3 package with identical pin configuration.

Q: What is the difference between the onsemi substitute options (2N3906TAR, 2N3906TF, 2N3906TFR)?

A: All three onsemi substitutes are electrically identical. The differences are in packaging format and inventory levels. 2N3906TAR is available with 9,200 units in stock, 2N3906TF with 1,300 units, and 2N3906TFR with 1,340 units. All are supplied in Cut Tape format and carry active product status with RoHS3 compliance.

Q: Why is the 2N3906-AP listed as a substitute if it is obsolete?

A: The 2N3906-AP is included for reference purposes as it maintains the same electrical specifications and package type. However, its obsolete status makes it unsuitable for new production designs. The 600 mW power rating is also lower than the 625 mW specification of the primary substitutes.

Q: Are there any compliance or regulatory differences between the substitute parts?

A: All active substitute parts (2N3906TA, 2N3906TAR, 2N3906TF, 2N3906TFR) are RoHS3 compliant and REACH unaffected. The original 2N3906RLRPG is REACH unaffected but does not carry RoHS3 compliance information. All parts share the same ECCN (EAR99) and HTSUS (8541.21.0075) classifications.

Q: Can I use the 2N3906TA from Fairchild Semiconductor as a substitute?

A: Yes. The 2N3906TA maintains all electrical specifications identical to the 2N3906RLRPG and is classified as an active product. It is available in Bulk packaging with significantly higher inventory (32,320 units). This part provides an alternative sourcing channel from a different manufacturer.

Q: What is the significance of the TO-92-3 package designation?

A: The TO-92-3 package is a three-lead through-hole configuration with formed leads. All substitute parts use this identical package type, ensuring mechanical and electrical compatibility with existing PCB layouts and socket configurations. The package supports the same mounting and soldering processes as the original part.

Q: Are there any thermal or frequency performance differences between the substitutes?

A: No. All substitute parts maintain the same transition frequency (250 MHz) and operating temperature range (-55°C to 150°C). Thermal performance is equivalent across all active substitutes.

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