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DMC264040R Equivalent & Substitute Parts
Part Overview
The DMC264040R is a pre-biased dual NPN bipolar transistor (BJT) manufactured by Panasonic Electronic Components in a Surface Mount Mini6-G4-B package. This component integrates two NPN transistors with internal biasing resistors, designed for applications requiring compact, pre-configured switching functionality at 50V maximum collector-emitter breakdown voltage and 100mA maximum collector current.
The DMC264040R is discontinued at DiGi Electronics. Equivalent and substitute parts are available from active manufacturers including Rohm Semiconductor, Nexperia USA Inc., and Toshiba Semiconductor and Storage, offering compatible electrical specifications and alternative packaging options for design flexibility and supply chain continuity.
Substiute Parts
Key Parameters
| Parameter | DMC264040R Value | Unit |
|---|---|---|
| Transistor Type | 2 NPN - Pre-Biased (Dual) | — |
| Current - Collector (Ic) (Max) | 100 | mA |
| Voltage - Collector Emitter Breakdown (Max) | 50 | V |
| Resistor - Base (R1) | 10 | kOhms |
| Resistor - Emitter Base (R2) | 47 | kOhms |
| Power - Max | 300 | mW |
| Mounting Type | Surface Mount | — |
| Package / Case | SOT-23-6 | — |
| RoHS Status | RoHS Compliant | — |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | — |
Substitute Part Grouping Explanation
Substitution of the DMC264040R is determined by strict equivalence across the following critical parameters:
Mandatory Matching Parameters:
- Transistor Type: 2 NPN - Pre-Biased (Dual)
- Current - Collector (Ic) (Max): 100 mA
- Voltage - Collector Emitter Breakdown (Max): 50 V
- Resistor - Base (R1): 10 kOhms
- Resistor - Emitter Base (R2): 47 kOhms
- Power - Max: 300 mW or greater
- Mounting Type: Surface Mount
- RoHS Compliance: Required
Package Compatibility: Substitute parts may utilize different surface mount package designations (SOT-23-6, SC-74, SOT-457, 6-TSOP, 6-TSSOP, SOT-363, SMT6, SM6, UMT6) provided the physical footprint and pin configuration accommodate the application's PCB layout requirements.
Secondary Parameters: DC Current Gain (hFE), Vce Saturation, Frequency - Transition, and Current - Collector Cutoff specifications may vary within acceptable ranges for the intended application without affecting functional substitution.
All identified substitute parts meet the mandatory parameter requirements and are available from active manufacturers with current product status.
Parameter Comparison
| Parameter | DMC264040R | IMH9AT110 | PIMH9,115 | RN1602(TE85L,F) | RN1607(TE85L,F) | RN4607(TE85L,F) | UMH9NFHATN |
|---|---|---|---|---|---|---|---|
| Manufacturer | Panasonic | Rohm | Nexperia | Toshiba | Toshiba | Toshiba | Rohm |
| Transistor Type | 2 NPN | 2 NPN | 2 NPN | 2 NPN | 2 NPN | 1 NPN, 1 PNP | 2 NPN |
| Ic (Max) | 100 mA | 100 mA | 100 mA | 100 mA | 100 mA | 100 mA | 100 mA |
| Vce Breakdown (Max) | 50 V | 50 V | 50 V | 50 V | 50 V | 50 V | 50 V |
| R1 (Base) | 10 kOhms | 10 kOhms | 10 kOhms | 10 kOhms | 10 kOhms | 10 kOhms | 10 kOhms |
| R2 (Emitter Base) | 47 kOhms | 47 kOhms | 47 kOhms | 10 kOhms | 47 kOhms | 47 kOhms | 47 kOhms |
| Power (Max) | 300 mW | 300 mW | 600 mW | 300 mW | 300 mW | 300 mW | 150 mW |
| Package / Case | SOT-23-6 | SC-74, SOT-457 | SC-74, SOT-457 | SC-74, SOT-457 | SC-74, SOT-457 | SC-74, SOT-457 | 6-TSSOP, SC-88, SOT-363 |
| Product Status | Discontinued | Active | Active | Active | Active | Active | Active |
| RoHS Status | RoHS Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | RoHS Compliant | ROHS3 Compliant |
| MSL | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
Engineering Selection Recommendations
Primary Substitutes (Dual NPN Configuration):
IMH9AT110, PIMH9,115, RN1607(TE85L,F), and UMH9NFHATN are direct functional equivalents to the DMC264040R with matching transistor configuration (2 NPN - Pre-Biased), identical current and voltage ratings, and matching internal resistor values (10 kOhms base, 47 kOhms emitter-base). All are manufactured by active suppliers with current product status and ROHS3 compliance. These parts are suitable for direct substitution in applications where the original SOT-23-6 package footprint can accommodate alternative surface mount packages (SC-74, SOT-457, 6-TSSOP, SOT-363).
Secondary Substitute (Modified Emitter-Base Resistor):
RN1602(TE85L,F) differs from the DMC264040R in the emitter-base resistor value (10 kOhms versus 47 kOhms). This modification affects biasing characteristics and switching behavior. Selection of RN1602(TE85L,F) requires circuit-level analysis to confirm compatibility with the intended application.
Alternative Configuration (Mixed NPN/PNP):
RN4607(TE85L,F) integrates one NPN and one PNP transistor (versus dual NPN in the DMC264040R). This configuration is not functionally equivalent for applications requiring dual NPN switching. Selection of RN4607(TE85L,F) is appropriate only for circuits specifically designed for complementary transistor pairs.
Automotive-Grade Option:
UMH9NFHATN carries AEC-Q101 automotive qualification and is suitable for applications requiring automotive-grade components. This part operates at reduced maximum power (150 mW versus 300 mW), which may limit applicability in high-power switching scenarios.
Frequently Asked Questions (FAQ)
Q: Can IMH9AT110 replace DMC264040R directly?
A: IMH9AT110 is functionally equivalent to DMC264040R across all critical electrical parameters (dual NPN configuration, 100 mA collector current, 50 V breakdown voltage, 10 kOhms base resistor, 47 kOhms emitter-base resistor, 300 mW power rating). The primary difference is package designation (SC-74/SOT-457 versus SOT-23-6). Direct substitution is possible if the PCB layout accommodates the alternative package footprint.
Q: What is the difference between RN1607(TE85L,F) and RN1602(TE85L,F)?
A: Both parts are manufactured by Toshiba with identical electrical ratings except for the emitter-base resistor value. RN1607(TE85L,F) has 47 kOhms (matching DMC264040R), while RN1602(TE85L,F) has 10 kOhms. The resistor value directly affects transistor biasing and switching speed. Selection depends on circuit requirements.
Q: Why is RN4607(TE85L,F) listed as a substitute if it has different transistor configuration?
A: RN4607(TE85L,F) is listed because it meets the mandatory electrical parameters (100 mA, 50 V, 10 kOhms base resistor, 47 kOhms emitter-base resistor, 300 mW power). However, the mixed NPN/PNP configuration makes it suitable only for applications specifically designed for complementary transistor pairs, not for direct replacement in dual NPN circuits.
Q: Is UMH9NFHATN suitable for high-power applications?
A: UMH9NFHATN has a maximum power rating of 150 mW, compared to 300 mW for DMC264040R. Applications requiring sustained power dissipation above 150 mW should not use UMH9NFHATN. This part is optimized for automotive-grade applications with AEC-Q101 qualification.
Q: Are all substitute parts RoHS compliant?
A: All substitute parts listed are RoHS compliant. DMC264040R carries RoHS Compliant status. IMH9AT110, PIMH9,115, RN1602(TE85L,F), RN1607(TE85L,F), and UMH9NFHATN carry ROHS3 Compliant status. RN4607(TE85L,F) carries RoHS Compliant status. All meet environmental compliance requirements.
Q: What package options are available for substitution?
A: Substitute parts are available in SC-74, SOT-457, 6-TSOP, 6-TSSOP, SC-88, SOT-363, SMT6, SM6, and UMT6 packages. The original DMC264040R uses SOT-23-6. PCB layout must accommodate the selected substitute package footprint. Consult package datasheets for pin configuration and physical dimensions.
Q: Can I use PIMH9,115 in place of DMC264040R?
A: PIMH9,115 is functionally equivalent with matching dual NPN configuration and all critical electrical parameters. It offers higher maximum power rating (600 mW versus 300 mW), providing additional thermal margin. Package designation is 6-TSOP (SC-74, SOT-457). Substitution is valid if the PCB layout accommodates this package.
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