PEMX1,315 Equivalent & Substitute Parts

Part Overview

The PEMX1,315 is a dual NPN bipolar junction transistor (BJT) array manufactured by Nexperia USA Inc. in SOT-666 surface mount packaging. This component is rated for 40V collector-emitter breakdown voltage, 100mA maximum collector current, and 300mW power dissipation. The part is classified as "Not For New Designs," indicating it has reached end-of-life status. Equivalent and substitute parts are necessary to support existing designs, provide design flexibility, and ensure supply chain continuity for applications requiring dual NPN transistor arrays with compatible electrical and mechanical specifications.

Key Parameters

Parameter	Value	Unit
Transistor Type	2 NPN (Dual)	—
Current - Collector (Ic) Max	100	mA
Voltage - Collector Emitter Breakdown (Max)	40	V
Vce Saturation (Max) @ Ib, Ic	200mV @ 5mA, 50mA	—
DC Current Gain (hFE) Min @ Ic, Vce	120 @ 1mA, 6V	—
Power - Max	300	mW
Frequency - Transition	100	MHz
Mounting Type	Surface Mount	—
Package / Case	SOT-563, SOT-666	—
Operating Temperature (TJ)	150	°C
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the PEMX1,315 is determined by the following critical parameters:

Electrical Compatibility Requirements:

Transistor configuration: Dual NPN (2 NPN)
Collector current rating: minimum 100mA
Collector-emitter breakdown voltage: minimum 40V
Power dissipation: minimum 300mW
Transition frequency: minimum 100MHz
DC current gain (hFE): minimum 120

Mechanical Compatibility Requirements:

Surface mount technology
Package compatibility: SOT-563 or SOT-666
Moisture sensitivity level: MSL 1 or equivalent
RoHS3 compliance

Compliance Requirements:

RoHS3 compliant
REACH unaffected status
ECCN EAR99 classification

Substitute parts are grouped into two categories based on their electrical performance relative to the PEMX1,315:

Category A - Direct Electrical Equivalents (100mA Collector Current Class): Parts with 100mA maximum collector current and 40V-45V breakdown voltage ratings. These parts maintain the same current handling capability as the PEMX1,315 and are suitable for direct replacement in applications with identical current requirements.

Category B - Enhanced Performance Substitutes (200mA-600mA Collector Current Class): Parts with higher collector current ratings (200mA or 600mA) and enhanced power dissipation. These parts provide additional design margin and are suitable for applications requiring higher current capacity or improved thermal performance.

Parameter Comparison

Parameter	PEMX1,315	BC847BV-TP	BC847BVC-7	BC847CDXV6T1G	MMDT2222V-7	MMDT3904VC-7	NST3904DXV6T1G
Manufacturer	Nexperia USA Inc.	Micro Commercial Co	Diodes Incorporated	onsemi	Diodes Incorporated	Diodes Incorporated	onsemi
Transistor Type	2 NPN (Dual)	2 NPN (Dual)	2 NPN (Dual)	2 NPN (Dual)	2 NPN (Dual)	2 NPN (Dual)	2 NPN (Dual)
Current - Collector (Ic) Max	100 mA	100 mA	100 mA	100 mA	600 mA	200 mA	200 mA
Voltage - Collector Emitter Breakdown (Max)	40 V	45 V	45 V	45 V	40 V	40 V	40 V
Vce Saturation (Max) @ Ib, Ic	200mV @ 5mA, 50mA	300mV @ 5mA, 100mA	300mV @ 5mA, 100mA	600mV @ 5mA, 100mA	1V @ 50mA, 500mA	300mV @ 5mA, 50mA	300mV @ 5mA, 50mA
DC Current Gain (hFE) Min @ Ic, Vce	120 @ 1mA, 6V	200 @ 2mA, 5V	200 @ 2mA, 5V	420 @ 2mA, 5V	100 @ 150mA, 10V	100 @ 10mA, 1V	100 @ 10mA, 1V
Power - Max	300 mW	150 mW	150 mW	500 mW	150 mW	200 mW	500 mW
Frequency - Transition	100 MHz	100 MHz	100 MHz	100 MHz	300 MHz	300 MHz	300 MHz
Operating Temperature (TJ)	150°C	-55°C ~ 150°C	-55°C ~ 150°C	-55°C ~ 150°C	-55°C ~ 150°C	-55°C ~ 150°C	-55°C ~ 150°C
Package / Case	SOT-563, SOT-666	SOT-563, SOT-666	SOT-563, SOT-666	SOT-563, SOT-666	SOT-563, SOT-666	SOT-563, SOT-666	SOT-563, SOT-666
Supplier Device Package	SOT-666	SOT-563	SOT-563	SOT-563	SOT-563	SOT-563	SOT-563
Product Status	Not For New Designs	Active	Active	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

For Direct Replacement (100mA Current Class):

BC847BV-TP, BC847BVC-7, and BC847CDXV6T1G are all active production parts suitable for direct replacement of the PEMX1,315 in applications requiring 100mA collector current. All three parts are RoHS3 compliant, REACH unaffected, and available in SOT-563 packaging. BC847BVC-7 (Diodes Incorporated) and BC847CDXV6T1G (onsemi) offer the highest inventory availability. BC847CDXV6T1G provides enhanced power dissipation (500mW) and higher DC current gain (420 @ 2mA, 5V), offering additional design margin compared to the PEMX1,315.

For Enhanced Performance Applications (200mA-600mA Current Class):

MMDT3904VC-7 and NST3904DXV6T1G are suitable for applications requiring higher collector current (200mA) with improved transition frequency (300MHz). NST3904DXV6T1G provides superior power dissipation (500mW) and is available in high volume. MMDT2222V-7 is suitable for applications requiring maximum collector current (600mA) with the highest transition frequency (300MHz) among all substitute options.

All substitute parts maintain RoHS3 compliance, REACH unaffected status, and MSL 1 moisture sensitivity rating. All parts are available in active production status, ensuring long-term supply chain stability.

Frequently Asked Questions (FAQ)

Q: Can BC847BVC-7 be used as a direct replacement for PEMX1,315?

A: Yes. BC847BVC-7 is a dual NPN transistor array with 100mA collector current rating, 45V breakdown voltage, and 100MHz transition frequency. It meets or exceeds all electrical requirements of the PEMX1,315. Both parts are RoHS3 compliant and MSL 1 rated. The primary difference is packaging: PEMX1,315 is supplied in SOT-666, while BC847BVC-7 is supplied in SOT-563. Both packages are mechanically compatible with SOT-563 and SOT-666 footprints.

Q: What is the difference between the BC847 series and MMDT series substitutes?

A: The BC847 series (BC847BV-TP, BC847BVC-7, BC847CDXV6T1G) maintains the 100mA collector current rating of the PEMX1,315. The MMDT series (MMDT2222V-7, MMDT3904VC-7) provides higher collector current ratings (200mA-600mA) and higher transition frequencies (300MHz). MMDT series parts are suitable for applications requiring higher current capacity or faster switching performance.

Q: Are all substitute parts available in the same package as PEMX1,315?

A: PEMX1,315 is supplied in SOT-666 packaging. All substitute parts are supplied in SOT-563 packaging. Both SOT-563 and SOT-666 are surface mount packages with compatible pinouts and mechanical footprints. PCB layout modifications are not required for substitution.

Q: Which substitute part offers the best thermal performance?

A: BC847CDXV6T1G (onsemi) and NST3904DXV6T1G (onsemi) both offer 500mW maximum power dissipation, compared to 300mW for PEMX1,315. These parts provide superior thermal performance and are suitable for applications with higher power dissipation requirements.

Q: Are all substitute parts compliant with current environmental regulations?

A: Yes. All substitute parts are RoHS3 compliant and REACH unaffected. All parts carry MSL 1 (Unlimited) moisture sensitivity rating, indicating no special moisture handling requirements during storage or assembly.

Q: What is the inventory status of substitute parts?

A: BC847BVC-7 (Diodes Incorporated) has the highest inventory availability at 70,960 pieces. NST3904DXV6T1G (onsemi) has 225,300 pieces available. MMDT2222V-7 (Diodes Incorporated) has 106,839 pieces available. All substitute parts are in active production status, ensuring continued availability.

Q: Can MMDT2222V-7 be used in applications designed for PEMX1,315?

A: MMDT2222V-7 is suitable for applications where higher collector current (600mA) and faster switching (300MHz) provide design benefits. The 40V breakdown voltage matches PEMX1,315. However, the higher current rating and transition frequency may introduce different circuit behavior. Circuit analysis is required to confirm suitability for specific applications.

Q: What are the key electrical differences between PEMX1,315 and its substitutes?

A: The primary electrical differences are: (1) Collector current rating: PEMX1,315 is 100mA; substitutes range from 100mA to 600mA. (2) Breakdown voltage: PEMX1,315 is 40V; BC847 series offers 45V. (3) Transition frequency: PEMX1,315 is 100MHz; MMDT series offers 300MHz. (4) Power dissipation: PEMX1,315 is 300mW; substitutes range from 150mW to 500mW. (5) DC current gain: PEMX1,315 is 120 @ 1mA, 6V; substitutes range from 100 to 420 depending on measurement conditions.

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