RN4907,LF Equivalent & Substitute Parts

Part Overview

The RN4907,LF is a pre-biased dual bipolar transistor (1 NPN, 1 PNP) manufactured by Toshiba Semiconductor and Storage. This surface mount component operates at 50V maximum collector-emitter breakdown voltage with 100mA maximum collector current and 200mW power dissipation. The device is housed in a 6-TSSOP (US6) package and is ROHS3 compliant with unlimited moisture sensitivity rating (MSL 1).

The RN4907,LF is an active product with 18,400 units in current inventory. Equivalent and substitute parts are identified based on matching electrical specifications, package compatibility, and functional equivalence for pre-biased BJT applications requiring dual NPN/PNP or dual NPN configurations.

Key Parameters

Parameter	RN4907,LF Value
Transistor Type	1 NPN, 1 PNP - Pre-Biased (Dual)
Current - Collector (Ic) Max	100mA
Voltage - Collector Emitter Breakdown (Max)	50V
Resistor - Base (R1)	10kOhms
Resistor - Emitter Base (R2)	47kOhms
DC Current Gain (hFE) Min @ Ic, Vce	80 @ 10mA, 5V
Vce Saturation (Max) @ Ib, Ic	300mV @ 250µA, 5mA
Current - Collector Cutoff (Max)	500nA
Frequency - Transition	200MHz
Power - Max	200mW
Package / Case	6-TSSOP, SC-88, SOT-363
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the RN4907,LF are grouped based on the following substitution criteria:

Primary Substitution Criteria (Mandatory Match):

Transistor configuration: 1 NPN, 1 PNP - Pre-Biased (Dual) OR 2 NPN - Pre-Biased (Dual)
Maximum collector current: 100mA
Maximum collector-emitter breakdown voltage: 50V
Base resistor (R1): 10kOhms
Emitter-base resistor (R2): 47kOhms
Package compatibility: 6-TSSOP, SC-88, SOT-363
Surface mount technology
ROHS3 compliance
MSL 1 rating

Secondary Compatibility Parameters:

Frequency transition: 200MHz or higher
Power dissipation: 200mW or higher
DC current gain (hFE): 80 or higher at specified conditions
Vce saturation: 300mV or lower at specified conditions
Current collector cutoff: 500nA or lower

Parts with 2 NPN configuration are included as substitutes where the dual NPN topology can functionally replace the 1 NPN, 1 PNP configuration in applications requiring only NPN switching or amplification stages.

Parameter Comparison

Part Number	Manufacturer	Transistor Type	Ic (Max)	Vce Breakdown (Max)	R1 (Base)	R2 (Emitter-Base)	Frequency (MHz)	Power (mW)	Package	RoHS
RN4907,LF	Toshiba	1 NPN, 1 PNP	100mA	50V	10kΩ	47kΩ	200	200	6-TSSOP	ROHS3
ACX114YUQ-7R	Diodes Inc.	1 NPN, 1 PNP	100mA	50V	10kΩ	47kΩ	250	270	SOT-363	ROHS3
ACX114YUQ-13R	Diodes Inc.	1 NPN, 1 PNP	100mA	50V	10kΩ	47kΩ	250	270	SOT-363	ROHS3
DCX114YU-7-F	Diodes Inc.	1 NPN, 1 PNP	100mA	50V	10kΩ	47kΩ	250	200	SOT-363	ROHS3
PUMD9,115	Nexperia	1 NPN, 1 PNP	100mA	50V	10kΩ	47kΩ	—	300	6-TSSOP	ROHS3
PUMD9,135	Nexperia	1 NPN, 1 PNP	100mA	50V	10kΩ	47kΩ	—	300	6-TSSOP	ROHS3
PUMD9,165	Nexperia	1 NPN, 1 PNP	100mA	50V	10kΩ	47kΩ	—	300	6-TSSOP	ROHS3
ADC114YUQ-7	Diodes Inc.	2 NPN	100mA	50V	10kΩ, 47kΩ	10kΩ, 47kΩ	250	270	SOT-363	ROHS3
ADC114YUQ-13	Diodes Inc.	2 NPN	100mA	50V	10kΩ, 47kΩ	10kΩ, 47kΩ	250	270	SOT-363	ROHS3
MUN5214DW1T1G	onsemi	2 NPN	100mA	50V	10kΩ	47kΩ	—	250	SOT-363	ROHS3
NSVMUN5214DW1T3G	onsemi	2 NPN	100mA	50V	10kΩ	47kΩ	—	250	SOT-363	ROHS3

Engineering Selection Recommendations

Direct Equivalents (1 NPN, 1 PNP Configuration):

The following parts provide direct functional equivalence to the RN4907,LF with identical transistor configuration:

DCX114YU-7-F (Diodes Incorporated): Matches all critical electrical parameters including 100mA collector current, 50V breakdown voltage, 10kΩ/47kΩ resistor network, and 200mW power rating. Offers higher transition frequency (250MHz vs. 200MHz). ROHS3 compliant with AEC-Q101 automotive qualification. 125,100 units in stock.
ACX114YUQ-7R and ACX114YUQ-13R (Diodes Incorporated): Both provide identical electrical specifications with enhanced power rating (270mW) and higher transition frequency (250MHz). AEC-Q101 qualified for automotive applications. 52,980 and 130,100 units respectively in stock.
PUMD9,115, PUMD9,135, PUMD9,165 (Nexperia USA Inc.): All three variants maintain 1 NPN, 1 PNP configuration with matching resistor values and 100mA/50V ratings. Offer higher power dissipation (300mW). Available in 6-TSSOP package. 18,200, 10,918, and 2,420 units respectively in stock.

Functional Alternatives (2 NPN Configuration):

The following parts provide functional substitution where dual NPN topology is acceptable:

ADC114YUQ-7 and ADC114YUQ-13 (Diodes Incorporated): Dual NPN configuration with identical current and voltage ratings. AEC-Q101 qualified. 2,064 and 21,323 units in stock respectively.
MUN5214DW1T1G and NSVMUN5214DW1T3G (onsemi): Dual NPN pre-biased transistors with matching electrical specifications. 513,700 and 10,100 units in stock respectively.

All substitute parts maintain ROHS3 compliance and MSL 1 rating. Selection should be based on package preference (6-TSSOP vs. SOT-363), availability requirements, and application-specific needs for NPN/PNP versus dual NPN topology.

Frequently Asked Questions (FAQ)

Q: Can I substitute the RN4907,LF with a dual NPN part like the MUN5214DW1T1G?

A: Substitution is possible only if your application requires dual NPN switching or amplification stages. The RN4907,LF provides one NPN and one PNP transistor, while the MUN5214DW1T1G provides two NPN transistors. If your circuit design requires complementary NPN/PNP functionality, dual NPN parts are not suitable. If your design uses only the NPN section or can be redesigned for dual NPN operation, these parts are electrically compatible.

Q: What is the difference between ACX114YUQ-7R and ACX114YUQ-13R?

A: Both parts are electrically identical with matching specifications for collector current (100mA), breakdown voltage (50V), resistor values (10kΩ/47kΩ), and power rating (270mW). The suffix difference (-7R vs. -13R) indicates different manufacturing date codes or tape reel configurations. Both are AEC-Q101 qualified and ROHS3 compliant. Selection between them depends on inventory availability and specific procurement requirements.

Q: Are the PUMD9 variants (115, 135, 165) interchangeable?

A: Yes. PUMD9,115, PUMD9,135, and PUMD9,165 are functionally identical with matching electrical specifications. All provide 1 NPN, 1 PNP configuration, 100mA/50V ratings, and 10kΩ/47kΩ resistor networks. The numeric suffix indicates different packaging or tape reel specifications. Selection is based on availability and procurement preferences.

Q: Why does the RN4907,LF specify 200MHz transition frequency while some substitutes offer 250MHz?

A: The transition frequency specification indicates the maximum frequency at which the transistor maintains useful gain. The RN4907,LF operates at 200MHz, while substitutes like DCX114YU-7-F and ACX114YUQ series operate at 250MHz. Higher transition frequency provides additional performance margin and is backward compatible with applications designed for 200MHz operation. This represents an enhancement rather than a limitation.

Q: Can I use PUMD9,115 (Cut Tape packaging) in place of RN4907,LF (Tape & Reel)?

A: Electrically, yes. Both parts are functionally equivalent with identical specifications. However, PUMD9,115 is supplied in Cut Tape (CT) & Digi-Reel packaging while RN4907,LF is supplied in standard Tape & Reel (TR). Packaging format affects handling and automated assembly processes. Verify that your procurement and assembly processes support the Cut Tape format before substitution.

Q: What are the key parameters I must verify before substituting the RN4907,LF?

A: Critical parameters for substitution are: (1) Transistor type configuration (1 NPN, 1 PNP vs. 2 NPN), (2) Maximum collector current (100mA), (3) Maximum collector-emitter breakdown voltage (50V), (4) Base resistor value (10kΩ), (5) Emitter-base resistor value (47kΩ), (6) Package type (6-TSSOP or SOT-363), and (7) ROHS3 compliance. All substitute parts listed meet these criteria. Application-specific requirements such as transition frequency, power dissipation margin, or automotive qualification (AEC-Q101) should be evaluated based on circuit design needs.

Q: Is the RN4907,LF still in active production?

A: Yes. The RN4907,LF is listed as an active product with 18,400 units currently in stock. All listed substitute parts are also active products with current inventory availability.

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