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DMN31D5L-13 Equivalent & Substitute Parts
Part Overview
The DMN31D5L-13 is an N-Channel MOSFET manufactured by Diodes Incorporated, rated for 30V drain-to-source voltage with 500mA continuous drain current at 25°C. This device is packaged in SOT-23-3 surface mount configuration and is designed for general-purpose switching applications requiring low on-resistance performance. The part maintains Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1).
Substitute parts are identified when equivalent electrical performance and mechanical compatibility are maintained across critical parameters including voltage rating, current capacity, on-resistance characteristics, and package form factor.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| FET Type | N-Channel | — |
| Technology | MOSFET (Metal Oxide) | — |
| Drain to Source Voltage (Vdss) | 30 | V |
| Current - Continuous Drain (Id) @ 25°C | 500 | mA |
| Rds On (Max) @ Id, Vgs | 1.5 | Ohm @ 10mA, 4V |
| Vgs(th) (Max) @ Id | 1.6 | V @ 250µA |
| Gate Charge (Qg) (Max) @ Vgs | 1.2 | nC @ 10V |
| Vgs (Max) | ±20 | V |
| Input Capacitance (Ciss) (Max) @ Vds | 50 | pF @ 15V |
| Power Dissipation (Max) | 350 | mW |
| Operating Temperature Range | -55 to 150 | °C (TJ) |
| Mounting Type | Surface Mount | — |
| Package / Case | TO-236-3, SC-59, SOT-23-3 | — |
| RoHS Status | ROHS3 Compliant | — |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | — |
Substitute Part Grouping Explanation
Substitution of the DMN31D5L-13 is determined by strict equivalence across the following critical parameters:
Electrical Equivalence Criteria:
- Drain-to-Source Voltage (Vdss): 30V minimum rating
- Continuous Drain Current (Id) @ 25°C: 500mA minimum
- On-Resistance (Rds On) @ specified conditions: 1.5 Ohm maximum @ 10mA, 4V
- Gate Threshold Voltage (Vgs(th)): 1.6V maximum @ 250µA
- Gate Charge (Qg): 1.2 nC maximum @ 10V
- Maximum Gate Voltage (Vgs): ±20V minimum
- Input Capacitance (Ciss): 50 pF maximum @ 15V
- Power Dissipation: 350mW maximum
Mechanical Equivalence Criteria:
- Package Type: SOT-23-3 (TO-236-3, SC-59)
- Mounting: Surface Mount
- Pin Configuration: 3-pin
Compliance Equivalence Criteria:
- RoHS3 Compliance
- Moisture Sensitivity Level: MSL 1 (Unlimited)
- Product Status: Active
The DMN31D5L-7 meets all specified electrical, mechanical, and compliance parameters and is classified as a parametric equivalent substitute.
Parameter Comparison
| Parameter | DMN31D5L-13 | DMN31D5L-7 | Match |
|---|---|---|---|
| Manufacturer | Diodes Incorporated | Diodes Incorporated | Yes |
| FET Type | N-Channel | N-Channel | Yes |
| Technology | MOSFET (Metal Oxide) | MOSFET (Metal Oxide) | Yes |
| Drain to Source Voltage (Vdss) | 30 V | 30 V | Yes |
| Current - Continuous Drain (Id) @ 25°C | 500 mA | 500 mA | Yes |
| Rds On (Max) @ Id, Vgs | 1.5 Ohm @ 10mA, 4V | 1.5 Ohm @ 10mA, 4V | Yes |
| Vgs(th) (Max) @ Id | 1.6 V @ 250µA | 1.6 V @ 250µA | Yes |
| Gate Charge (Qg) (Max) @ Vgs | 1.2 nC @ 10V | 1.2 nC @ 10V | Yes |
| Vgs (Max) | ±20 V | ±20 V | Yes |
| Input Capacitance (Ciss) (Max) @ Vds | 50 pF @ 15V | 50 pF @ 15V | Yes |
| Power Dissipation (Max) | 350 mW | 350 mW | Yes |
| Operating Temperature Range | -55 to 150 °C (TJ) | -55 to 150 °C (TJ) | Yes |
| Mounting Type | Surface Mount | Surface Mount | Yes |
| Package / Case | TO-236-3, SC-59, SOT-23-3 | TO-236-3, SC-59, SOT-23-3 | Yes |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | Yes |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) | Yes |
| Product Status | Active | Active | Yes |
Engineering Selection Recommendations
Both the DMN31D5L-13 and DMN31D5L-7 are Active products manufactured by Diodes Incorporated with identical electrical specifications and mechanical packaging. Selection between these parts is based on inventory availability and supply chain considerations rather than technical performance differences.
DMN31D5L-13 is suitable for applications where the specific tape and reel configuration designated by the "-13" suffix is required or preferred.
DMN31D5L-7 is suitable for applications where the specific tape and reel configuration designated by the "-7" suffix is required or preferred. This part number maintains higher inventory availability (12,700 pcs in stock versus 951 pcs for DMN31D5L-13).
Both parts satisfy RoHS3 compliance requirements and maintain unlimited moisture sensitivity rating (MSL 1), eliminating compliance-related constraints in component selection. Both are rated for identical operating temperature ranges (-55°C to 150°C junction temperature) and power dissipation limits (350mW).
Frequently Asked Questions (FAQ)
Q: Are DMN31D5L-13 and DMN31D5L-7 electrically interchangeable?
A: Yes. Both parts are manufactured by Diodes Incorporated and share identical electrical specifications including 30V Vdss rating, 500mA continuous drain current, 1.5 Ohm on-resistance, and all other parametric values. The suffix designations (-13 and -7) indicate different tape and reel configurations but do not affect electrical performance.
Q: Can these parts be used interchangeably in PCB assembly?
A: Yes. Both parts use identical SOT-23-3 package configuration (also designated TO-236-3 or SC-59). Pin assignments and mechanical dimensions are identical, allowing direct substitution on PCBs designed for either part number.
Q: What is the difference between the -13 and -7 suffix designations?
A: The suffix designations refer to different tape and reel packaging configurations used during manufacturing and distribution. These differences do not affect the electrical characteristics or performance of the MOSFET itself.
Q: Are both parts RoHS3 compliant?
A: Yes. Both DMN31D5L-13 and DMN31D5L-7 are RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.
Q: What is the operating temperature range for these devices?
A: Both parts operate across a junction temperature range of -55°C to 150°C (TJ).
Q: What is the maximum power dissipation rating?
A: Both parts are rated for 350mW maximum power dissipation at ambient temperature (Ta).
Q: Can these N-Channel MOSFETs be used in high-frequency switching applications?
A: Yes. The gate charge specification of 1.2 nC @ 10V and input capacitance of 50 pF @ 15V support switching applications within the specified voltage and current ratings.
Q: What is the gate threshold voltage specification?
A: The gate threshold voltage (Vgs(th)) is specified at 1.6V maximum when measured at 250µA drain current. This parameter defines the gate voltage at which the MOSFET begins to conduct.
Q: Is the maximum gate voltage rating the same for both parts?
A: Yes. Both parts are rated for ±20V maximum gate voltage (Vgs).
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