Equivalent & Substitute Parts for 2DC4617QLP-7

Part Overview

The 2DC4617QLP-7 is an NPN bipolar junction transistor manufactured by Diodes Incorporated, designed for general-purpose switching and amplification applications. This surface mount device operates at 50 V collector-emitter breakdown voltage with a maximum collector current of 100 mA and transition frequency of 100 MHz. The part is classified as Active product status with ROHS3 compliance and unlimited moisture sensitivity rating. Equivalent and substitute parts are identified to provide design flexibility, accommodate supply chain variations, and support alternative packaging or performance requirements while maintaining functional compatibility within specified electrical parameters.

Key Parameters

Parameter	Value	Unit
Transistor Type	NPN	—
Voltage - Collector Emitter Breakdown (Max)	50	V
Current - Collector (Ic) (Max)	100	mA
Vce Saturation (Max) @ Ib, Ic	200 mV @ 5 mA, 50 mA	—
DC Current Gain (hFE) (Min) @ Ic, Vce	120 @ 1 mA, 6 V	—
Power - Max	250	mW
Frequency - Transition	100	MHz
Operating Temperature Range	-55 to 150	°C
Mounting Type	Surface Mount	—
Package / Case	3-UFDFN (X1-DFN1006-3)	—

Substitute Part Grouping Explanation

Substitution of the 2DC4617QLP-7 is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

Transistor Type: NPN (polarity must match)
Voltage - Collector Emitter Breakdown (Max): 50 V or greater
Current - Collector (Ic) (Max): 100 mA or greater
Vce Saturation (Max): 200 mV or less @ 5 mA, 50 mA
DC Current Gain (hFE) (Min): 120 or greater @ 1 mA, 6 V
Power - Max: 250 mW or greater
Frequency - Transition: 100 MHz or greater
Operating Temperature: -55°C to 150°C or greater range
Mounting Type: Surface Mount
RoHS Status: ROHS3 Compliant

Package Compatibility: Substitutes may employ different surface mount packages (3-UFDFN, SOT-883, SC-101) provided the footprint and pin configuration are compatible with the application circuit design.

Substitution Categories:

Parametric Equivalent (Identical Electrical Performance): Parts meeting all electrical specifications with identical or superior ratings in the same or compatible package.
Direct Manufacturer Equivalent (Cross-Manufacturer): Parts from alternative manufacturers (NXP/Nexperia) with matching electrical specifications and compatible packaging.
Functional Substitute (Relaxed Polarity): PNP transistors listed as substitutes for complementary circuit designs where polarity inversion is intentional and circuit topology accommodates the change.

Parameter Comparison

Part Number	Manufacturer	Transistor Type	Vce Breakdown (Max)	Ic (Max)	Vce Sat (Max)	hFE (Min)	Power (Max)	Freq - Transition	Package	Compliance
2DC4617QLP-7	Diodes Inc.	NPN	50 V	100 mA	200 mV @ 5mA, 50mA	120 @ 1mA, 6V	250 mW	100 MHz	3-UFDFN	ROHS3
2DC4617QLP-7B	Diodes Inc.	NPN	50 V	100 mA	200 mV @ 5mA, 50mA	120 @ 1mA, 6V	250 mW	100 MHz	3-UFDFN	ROHS3
2PC4617QMB,315	NXP USA Inc.	NPN	50 V	100 mA	200 mV @ 5mA, 50mA	120 @ 1mA, 6V	250 mW	100 MHz	SC-101, SOT-883	Not specified
2PC4617QM,315	Nexperia USA Inc.	NPN	50 V	100 mA	200 mV @ 5mA, 50mA	120 @ 1mA, 6V	430 mW	100 MHz	SC-101, SOT-883	ROHS3
BC857CM,315	Nexperia USA Inc.	PNP	45 V	100 mA	400 mV @ 5mA, 100mA	420 @ 2mA, 5V	150 mW	100 MHz	SC-101, SOT-883	ROHS3
BC857AM,315	Nexperia USA Inc.	PNP	45 V	100 mA	400 mV @ 5mA, 100mA	125 @ 2mA, 5V	150 mW	100 MHz	SC-101, SOT-883	ROHS3
2PA1774QM,315	Nexperia USA Inc.	PNP	40 V	100 mA	200 mV @ 5mA, 50mA	120 @ 1mA, 6V	430 mW	100 MHz	SC-101, SOT-883	ROHS3

Engineering Selection Recommendations

For Direct Replacement (NPN Type):

The 2DC4617QLP-7B from Diodes Incorporated is a parametric equivalent with identical electrical specifications and the same 3-UFDFN package. This part is recommended for direct substitution without circuit modification.

The 2PC4617QM,315 from Nexperia USA Inc. is functionally equivalent with superior power dissipation capability (430 mW vs. 250 mW) and carries AEC-Q100 automotive qualification. This part accommodates SOT-883 package footprint and is suitable for applications requiring automotive-grade reliability.

The 2PC4617QMB,315 from NXP USA Inc. provides equivalent electrical performance in SOT-883 packaging with higher inventory availability. Package footprint compatibility must be verified for PCB layout integration.

For Complementary Circuit Designs (PNP Type):

The 2PA1774QM,315 from Nexperia USA Inc. is a PNP transistor with matching collector current (100 mA), transition frequency (100 MHz), and saturation voltage characteristics. This part carries AEC-Q101 automotive qualification and is suitable for push-pull or complementary pair applications where polarity inversion is required.

The BC857 series (BC857AM,315, BC857CM,315) from Nexperia USA Inc. provides PNP functionality with 45 V breakdown voltage and 100 MHz transition frequency. These parts are automotive-qualified (AEC-Q101) and available with varying DC current gain specifications (hFE 125 to 420 @ 2 mA, 5 V).

Compliance and Qualification:

All recommended substitutes maintain ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). The Nexperia parts carry automotive-grade qualifications (AEC-Q100 for NPN, AEC-Q101 for PNP), suitable for automotive and industrial applications requiring enhanced reliability standards.

Frequently Asked Questions (FAQ)

Q: Can the 2DC4617QLP-7 be replaced with a PNP transistor?

A: Direct replacement with a PNP transistor is not possible without circuit redesign. PNP transistors (BC857 series, 2PA1774QM,315) operate with reversed polarity and require inverted base-emitter drive signals. These parts are functional substitutes only for applications where complementary pair operation or polarity inversion is intentional and the circuit topology is modified accordingly.

Q: What is the difference between 2DC4617QLP-7 and 2DC4617QLP-7B?

A: Both parts are parametric equivalents from Diodes Incorporated with identical electrical specifications: 50 V breakdown voltage, 100 mA collector current, 250 mW power dissipation, and 100 MHz transition frequency. The suffix "-7B" indicates a manufacturing revision or date code variant. Both parts are suitable for direct substitution.

Q: Can I use 2PC4617QM,315 in place of 2DC4617QLP-7?

A: Yes. The 2PC4617QM,315 from Nexperia USA Inc. meets all electrical requirements with superior power rating (430 mW vs. 250 mW). The primary consideration is package compatibility: the 2PC4617QM,315 uses SOT-883 packaging while the 2DC4617QLP-7 uses 3-UFDFN. PCB footprint and pin layout must be verified for mechanical compatibility.

Q: What are the key electrical parameters that determine substitutability?

A: Substitution is determined by: (1) Transistor polarity (NPN vs. PNP), (2) Collector-emitter breakdown voltage (50 V minimum for NPN equivalents), (3) Maximum collector current (100 mA or greater), (4) Saturation voltage (200 mV or less @ specified conditions), (5) DC current gain (120 or greater @ specified conditions), (6) Power dissipation (250 mW or greater), and (7) Transition frequency (100 MHz or greater). All parameters must meet or exceed the original specification.

Q: Are the BC857 series parts suitable substitutes?

A: The BC857 series (BC857AM,315, BC857CM,315, BC857BM,315) are PNP transistors with 45 V breakdown voltage and 100 mA collector current. These parts are functional substitutes for complementary circuit applications only. They are not direct replacements for NPN operation. The reduced breakdown voltage (45 V vs. 50 V) and lower power rating (150 mW vs. 250 mW) must be evaluated against application requirements.

Q: What packaging options are available for substitutes?

A: The original 2DC4617QLP-7 uses 3-UFDFN (X1-DFN1006-3) surface mount package. Equivalent NPN substitutes are available in SOT-883 and SC-101 packages (2PC4617QM,315, 2PC4617QMB,315). PNP substitutes use SOT-883 and SC-101 packages. Package selection depends on PCB layout constraints and footprint compatibility with the application circuit.

Q: Do all substitutes have the same compliance ratings?

A: All recommended substitutes maintain ROHS3 compliance and MSL 1 (unlimited) moisture sensitivity rating. Nexperia parts carry automotive-grade qualifications: AEC-Q100 for NPN types (2PC4617QM,315) and AEC-Q101 for PNP types (2PA1774QM,315, BC857 series). The 2PC4617QMB,315 from NXP does not specify RoHS status in the provided data. Compliance verification is required for regulated applications.

Q: What is the inventory status of these substitutes?

A: Inventory levels vary: 2DC4617QLP-7B (7,970 pcs), 2PC4617QM,315 (680,100 pcs), 2PC4617QMB,315 (97,908 pcs), 2PA1774QM,315 (10,955 pcs), BC857AM,315 (10,511 pcs), BC857CM,315 (11,054 pcs). The 2PC4617QM,315 offers the highest availability for immediate procurement.

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