PUMB1,135 Equivalent & Substitute Parts

Part Overview

The PUMB1,135 is a pre-biased dual PNP bipolar junction transistor (BJT) manufactured by Nexperia USA Inc. in a 6-TSSOP surface mount package. This component integrates two PNP transistors with internal biasing resistors, designed for switching and amplification applications requiring 50V collector-emitter breakdown voltage and 100mA maximum collector current. The part is active in production status with AEC-Q100 automotive qualification and ROHS3 compliance. Equivalent and substitute parts are identified based on matching electrical characteristics, mechanical compatibility, and functional performance within the pre-biased dual PNP BJT category.

Key Parameters

Parameter	Value	Unit
Transistor Type	2 PNP - Pre-Biased (Dual)	—
Current - Collector (Ic) (Max)	100	mA
Voltage - Collector Emitter Breakdown (Max)	50	V
Resistor - Base (R1)	22	kOhms
Resistor - Emitter Base (R2)	22	kOhms
DC Current Gain (hFE) (Min) @ Ic, Vce	60 @ 5mA, 5V	—
Vce Saturation (Max) @ Ib, Ic	150 @ 500µA, 10mA	mV
Current - Collector Cutoff (Max)	1	µA
Power - Max	300	mW
Mounting Type	Surface Mount	—
Package / Case	6-TSSOP, SC-88, SOT-363	—
RoHS Status	ROHS3 Compliant	—
Grade	Automotive	—
Qualification	AEC-Q100	—

Substitute Part Grouping Explanation

Substitution of the PUMB1,135 is determined by the following critical parameters:

Electrical Compatibility Requirements:

Transistor type must be 2 PNP - Pre-Biased (Dual)
Maximum collector current: 100mA
Maximum collector-emitter breakdown voltage: 50V
Internal base resistor (R1): 22kOhms
Internal emitter-base resistor (R2): 22kOhms

Mechanical Compatibility Requirements:

Surface mount package format (6-TSSOP, SC-88, or SOT-363)
Pin configuration compatible with SOT-363 family

Compliance Requirements:

ROHS3 compliance mandatory
Automotive grade preferred for direct substitution
AEC-Q100 or AEC-Q101 qualification preferred

Substitute parts are grouped into two categories:

Category A - Direct Electrical Equivalents: Parts with identical internal resistor values (R1 = 22kOhms, R2 = 22kOhms) and matching electrical specifications. These include DDA124EU-7-F, DDA124EUQ-13-F, MUN5112DW1T1G, SMUN5112DW1T1G, and RN2963(TE85L,F).

Category B - Functional Equivalents with Different Internal Resistor Networks: Parts with different internal resistor configurations (UMB10NTN, UMB11NTN, UMB2NTN) that maintain the same collector current, breakdown voltage, and dual PNP configuration but employ alternative biasing networks. These parts are suitable for applications where the internal resistor network does not directly impact circuit performance.

Parameter Comparison

Part Number	Manufacturer	Ic (Max) mA	Vce(BR) Max V	R1 kOhms	R2 kOhms	hFE (Min)	Vce Sat (Max) mV	Power (Max) mW	Package	Grade	Qualification
PUMB1,135	Nexperia USA Inc.	100	50	22	22	60	150	300	6-TSSOP	Automotive	AEC-Q100
DDA124EU-7-F	Diodes Incorporated	100	50	22	22	56	300	200	SOT-363	—	—
DDA124EUQ-13-F	Diodes Incorporated	100	50	22	22	56	300	200	SOT-363	Automotive	AEC-Q101
MUN5112DW1T1G	onsemi	100	50	22	22	60	250	250	SC-88	—	—
RN2963(TE85L,F)	Toshiba Semiconductor and Storage	100	50	22	22	70	300	200	US6	—	—
SMUN5112DW1T1G	onsemi	100	50	22	22	60	250	250	SC-88	—	—
UMB10NTN	Rohm Semiconductor	100	50	2.2	47	80	300	150	UMT6	—	—
UMB11NTN	Rohm Semiconductor	100	50	10	10	20	300	150	UMT6	—	—
UMB2NTN	Rohm Semiconductor	100	50	47	47	68	300	150	UMT6	—	—

Engineering Selection Recommendations

Direct Substitution (Preferred):

DDA124EUQ-13-F is the primary direct substitute for PUMB1,135. Both parts share identical internal resistor networks (R1 = 22kOhms, R2 = 22kOhms), matching electrical specifications, and automotive-grade qualification. DDA124EUQ-13-F carries AEC-Q101 qualification, equivalent to the PUMB1,135 AEC-Q100 qualification. Both are ROHS3 compliant. The primary difference is package format (SOT-363 versus 6-TSSOP), which are mechanically compatible within the SOT-363 family.

Secondary Substitutes (Electrical Equivalents):

DDA124EU-7-F, MUN5112DW1T1G, SMUN5112DW1T1G, and RN2963(TE85L,F) maintain identical internal resistor configurations and core electrical parameters. These parts are suitable for applications where automotive qualification is not required. MUN5112DW1T1G and SMUN5112DW1T1G are functionally identical onsemi products with SC-88 packaging. RN2963(TE85L,F) is a Toshiba equivalent with US6 packaging.

Alternative Substitutes (Different Internal Resistor Networks):

UMB10NTN, UMB11NTN, and UMB2NTN are Rohm Semiconductor pre-biased dual PNP transistors with different internal resistor configurations. These parts maintain the same collector current (100mA), breakdown voltage (50V), and dual PNP topology but employ alternative biasing networks. Selection of these parts requires circuit-level analysis to confirm compatibility with the application's biasing requirements. UMB10NTN features R1 = 2.2kOhms and R2 = 47kOhms. UMB11NTN features R1 = 10kOhms and R2 = 10kOhms. UMB2NTN features R1 = 47kOhms and R2 = 47kOhms.

Compliance Considerations:

All substitute parts are ROHS3 compliant and REACH unaffected. For automotive applications requiring AEC-Q100 or AEC-Q101 qualification, DDA124EUQ-13-F is the only qualified alternative. Non-automotive applications may utilize any listed substitute based on electrical compatibility and package availability.

Frequently Asked Questions (FAQ)

Q: Can DDA124EUQ-13-F directly replace PUMB1,135 in automotive applications?

A: Yes. DDA124EUQ-13-F is an automotive-grade substitute with AEC-Q101 qualification. Both parts share identical internal resistor values (22kOhms base, 22kOhms emitter-base), matching electrical specifications, and ROHS3 compliance. The package format differs (SOT-363 versus 6-TSSOP), but both are mechanically compatible within the SOT-363 family pinout.

Q: What is the difference between Category A and Category B substitutes?

A: Category A substitutes (DDA124EU-7-F, DDA124EUQ-13-F, MUN5112DW1T1G, SMUN5112DW1T1G, RN2963(TE85L,F)) have identical internal resistor networks (R1 = 22kOhms, R2 = 22kOhms) matching the PUMB1,135. Category B substitutes (UMB10NTN, UMB11NTN, UMB2NTN) employ different internal resistor configurations and require circuit-level verification before substitution.

Q: Are the Rohm UMB series parts suitable replacements?

A: UMB10NTN, UMB11NTN, and UMB2NTN maintain the same collector current (100mA) and breakdown voltage (50V) as the PUMB1,135 but feature different internal biasing resistor networks. These parts are functionally equivalent for applications where the internal resistor network does not directly impact circuit operation. Circuit-level analysis is required to confirm compatibility.

Q: What is the significance of the internal resistor values (R1 and R2)?

A: The internal resistor values determine the biasing characteristics and switching behavior of the pre-biased transistor. The PUMB1,135 uses 22kOhms for both R1 (base resistor) and R2 (emitter-base resistor). Substitutes with identical resistor values (Category A) provide equivalent biasing behavior. Substitutes with different resistor values (Category B) may exhibit different switching thresholds and biasing currents.

Q: Can non-automotive-grade substitutes be used in automotive applications?

A: Non-automotive-grade substitutes lack AEC-Q100 or AEC-Q101 qualification and are not recommended for automotive applications. For automotive use, DDA124EUQ-13-F is the qualified alternative to PUMB1,135.

Q: What are the package compatibility considerations?

A: PUMB1,135 is supplied in 6-TSSOP packaging. Substitute parts are available in SOT-363, SC-88, UMT6, and US6 packages. All packages are mechanically compatible within the SOT-363 family pinout structure. PCB layout and footprint design must accommodate the specific package format of the selected substitute.

Q: Are all listed substitutes ROHS3 compliant?

A: Yes. All substitute parts listed are ROHS3 compliant and REACH unaffected, matching the environmental compliance status of the PUMB1,135.

Q: What is the difference between Vce saturation specifications across substitutes?

A: Vce saturation varies across substitutes: PUMB1,135 specifies 150mV maximum at 500µA base current and 10mA collector current. DDA124 series specifies 300mV, MUN5112DW1T1G and SMUN5112DW1T1G specify 250mV, and Rohm UMB series specify 300mV. Lower saturation voltage indicates faster switching and lower power dissipation in saturated switching applications.

Q: How do transition frequency specifications affect substitution?

A: PUMB1,135 does not specify transition frequency. Substitutes with specified transition frequencies (DDA124 series at 250MHz, UMB series at 250MHz, RN2963 at 200MHz) indicate higher-frequency capability. For applications operating below these frequencies, transition frequency differences are not limiting factors.

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