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Diodes Incorporated DSS30101L-7
- Part No.:
- DSS30101L-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Bipolar Transistors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
DSS30101L-7.pdf
- Description:
- TRANS NPN 30V 1A SOT-23-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,621
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Product details
Overview
DSS30101L-7 from Diodes Incorporated is a low VCE(sat) NPN bipolar junction transistor in SOT-23 package, rated for 1 A continuous collector current, 30 V VCEO, and ultra-low 75 mV saturation voltage at IC = 0.1 A / IB = 1 mA. It serves as a medium-power switching and amplification device in compact DC-DC converters, LED drivers, and load-switching circuits.
For engineers reviewing the DSS30101L-7 datasheet, DSS30101L-7 pinout, DSS30101L-7 application, or DSS30101L-7 equivalent, key selection criteria include verified VCE(sat) performance at 1 A, hFE stability across -55°C to +150°C, SOT-23 thermal resistance (RθJA = 209°C/W), and RoHS-compliant "Green" construction.
Technical Context
This NPN transistor operates with fixed-base drive architecture and exhibits pulsed switching behavior validated under 300 μs pulse width and ≤2% duty cycle. Its hFE ranges from 200–900 depending on IC, and fT reaches 250 MHz at VCE = 5 V, IC = 100 mA, enabling high-speed digital switching up to ~100 MHz.
Thermal design relies on its 209°C/W junction-to-ambient resistance on FR-4 PCB, with derated power dissipation down to 300 mW at 85°C ambient. The device's RCE(sat) of 200 mΩ at IE = 1 A / IB = 100 mA directly supports low-loss conduction in battery-powered load control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 30 V - Maximum safe collector-emitter voltage before breakdown in common-emitter configuration. |
| IC (continuous) | 1 A - Continuous DC collector current rating defining steady-state switching capacity. |
| VCE(sat) | 75 mV @ IC = 0.1 A, IB = 1 mA - Ultra-low saturation voltage minimizing conduction loss in high-efficiency switches. |
| hFE | 300–900 - DC current gain range supporting stable biasing across 0.5 A–1 A loads with minimal base drive overhead. |
| fT | 250 MHz - Transition frequency confirming suitability for fast digital switching and RF pre-driver stages. |
| RθJA | 209°C/W - Thermal resistance enabling 600 mW power dissipation at 25°C ambient on standard FR-4 PCB. |
| ESD Rating | 8 kV HBM - Robustness against human-body-model electrostatic discharge during handling and assembly. |
Pinout & Package
Package: SOT-23 - Surface-mount plastic package with 0.008 g mass, UL 94V-0 flammability rating, and matte tin-plated copper leadframe for reliable solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| E (Emitter) | Current sink terminal | Connected to ground or low-side return path; defines reference for VBE and VCE measurements. |
| B (Base) | Control input | Receives forward-biased current to enable conduction; requires 100 mA drive for full 1 A saturation. |
| C (Collector) | Current source terminal | Delivers switched load current; rated for 30 V max and 2 A peak pulse capability. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low VCE(sat) | 75 mV at light load enables >99% efficiency in 3.3 V/5 V logic-level switching applications. |
| High hFE consistency | 300–900 across IC = 50 mA–1 A ensures predictable base drive requirements without overdesign. |
| Extended temperature operation | -55°C to +150°C operating range supports automotive under-hood and industrial motor-control environments. |
| RoHS & "Green" compliance | Lead-, halogen-, and antimony-free construction meets global environmental regulations and end-of-life disposal standards. |
Applications
| DC-DC Converter Switch | LED Constant-Current Driver |
|---|---|
Use Scenario: High-efficiency buck converter output stage in portable power supplies. IC Role / Device Role / Timing Role: NPN switch controlling inductor current flow during ON phase; driven by PWM controller. Use Value: 75 mV VCE(sat) reduces conduction loss by >40% vs. standard transistors at 0.5 A, improving thermal margin. |
Use Scenario: Linear constant-current sink for high-brightness white LEDs in automotive interior lighting. IC Role / Device Role / Timing Role: Current-regulating pass element with feedback-controlled base bias. Use Value: Stable hFE across temperature ensures ±5% LED current accuracy from -40°C to +85°C ambient. |
| Microcontroller GPIO Expander | Industrial Solenoid Driver |
Use Scenario: Driving 12 V solenoids or relays from 3.3 V microcontroller outputs via level-shifting interface. IC Role / Device Role / Timing Role: Medium-power interface transistor translating logic-level signals to higher-voltage loads. Use Value: 1 A IC rating and 200 mΩ RCE(sat) support direct drive of 12 V/500 mA solenoids without external driver IC. |
Use Scenario: PLC output stage switching 24 V DC industrial actuators in factory automation systems. IC Role / Device Role / Timing Role: Robust discrete switch handling repetitive inductive turn-off transients. Use Value: 50 V VCBO and 8 kV HBM ESD rating ensure reliability in electrically noisy plant-floor environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NPN switching transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBT3904-7-F | Lower IC (200 mA), higher VCE(sat) (300 mV @ 50 mA), smaller hFE range (100–300) | Suitable only for signal-level or low-current switching; not rated for 1 A loads | Select when board space is constrained and load current remains below 200 mA. |
| ZTX653STZ | Higher VCEO (60 V), TO-92 package, 250 mV VCE(sat) @ 1 A, slower fT (100 MHz) | Through-hole mounting; better voltage headroom but larger footprint and lower speed | Choose for legacy through-hole designs requiring >40 V blocking or higher surge tolerance. |
Compared with MMBT3904-7-F and ZTX653STZ, DSS30101L-7 uniquely balances 1 A current capability, ultra-low 75 mV saturation, SOT-23 surface-mount compatibility, and 250 MHz fT, making it optimal for space-constrained, high-efficiency medium-power switching where thermal and electrical performance are co-critical.
Availability
DSS30101L-7 is available at Aetrix Electronics and suitable for DC-DC converters, LED drivers, microcontroller interface circuits, and industrial solenoid control requiring stable component supply and consistent parametric performance across production batches.
Supply support for DSS30101L-7 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.
DSS30101L-7 belongs to Diodes' low-saturation-voltage bipolar transistor product line, engineered specifically for high-efficiency, medium-power switching in space-constrained consumer, computing, and industrial power systems.
FAQ
What is the maximum continuous collector current for DSS30101L-7?
The DSS30101L-7 is rated for 1 A continuous collector current at TA = 25°C on FR-4 PCB. Derating is required above 25°C ambient per Fig. 1 in the datasheet, reaching ~300 mW at 85°C, which corresponds to approximately 0.6 A under typical VCE(sat) conditions.
Is DSS30101L-7 suitable for automotive applications?
Yes - its -55°C to +150°C operating temperature range, 8 kV HBM ESD rating, and RoHS/Green compliance meet baseline requirements for under-dash and non-safety-critical automotive modules, including body control units and lighting drivers.
How does the SOT-23 package affect thermal performance?
The SOT-23 package delivers RθJA = 209°C/W on FR-4 PCB, meaning a 600 mW power dissipation raises junction temperature by ~125°C above ambient. Effective heat spreading via copper pour or thermal vias is recommended for sustained 1 A operation above 40°C ambient.
What is the typical base-emitter saturation voltage at full load?
VBE(sat) is 0.93 V (typical) at IC = 1 A and IB = 100 mA, as specified in the Electrical Characteristics table. This value remains stable across -55°C to +150°C, enabling predictable base drive circuit design.
DSS30101L-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Transistor Type:
- NPN
- Current - Collector (Ic) (Max):
- 1 A
- Voltage - Collector Emitter Breakdown (Max):
- 30 V
- Vce Saturation (Max) @ Ib, Ic:
- 200mV @ 100mA, 1A
- Current - Collector Cutoff (Max):
- 100nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 300 @ 500mA, 5V
- Power - Max:
- 600 mW
- Frequency - Transition:
- 250MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
DSS30101L-7 FAQ
1.How can I place an order for DSS30101L-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DSS30101L-7 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for DSS30101L-7 reliable?
The price and inventory of DSS30101L-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DSS30101L-7 is usually 5 days.
3.What payment methods are accepted for DSS30101L-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DSS30101L-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DSS30101L-7?
DSS30101L-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DSS30101L-7 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for DSS30101L-7?
For technical support, including DSS30101L-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DSS30101L-7 requirements.
6.How does Aetrix verify that DSS30101L-7 is sourced from the original manufacturer or authorized distributors?
All DSS30101L-7 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that DSS30101L-7 meets industry standards.
7.What is the process for return or replacement of DSS30101L-7?
All DSS30101L-7 units undergo pre-shipment inspection (PSI). If there is an issue with DSS30101L-7, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The DSS30101L-7 part is unused and in its original packaging.
Return procedure for DSS30101L-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DSS30101L-7 Tags
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