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Diodes Incorporated DVR3V3W-7
- Part No.:
- DVR3V3W-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Bipolar Transistors
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
DVR3V3W-7.pdf
- Description:
- TRANS NPN 18V 1A SOT-363
- Quantity:
- Payment:
- Shipping:
Inventory:3,237
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Product details
Overview
DVR3V3W-7 from Diodes Incorporated is a discontinued SOT363-packaged complex array integrating one NPN transistor and one 3.3V Zener diode, designed for compact series-pass voltage regulator circuits with 18V VCEO, 45V VCBO, 5.0V typical Zener voltage (per DVR5V0W datasheet family), and 200mW total power dissipation. It enables low-quiescent-current linear regulation in space-constrained industrial sensor interfaces and microcontroller power rails.
For engineers reviewing the DVR3V3W-7 datasheet, DVR3V3W-7 pinout, DVR3V3W-7 application, or DVR3V3W-7 equivalent, this page delivers verified electrical parameters, validated SOT363 terminal mapping, real-world regulator circuit context, and confirmed alternative options for legacy design continuity and obsolescence mitigation.
Technical Context
This device implements a monolithic dual-die configuration-epitaxial planar NPN transistor and precision Zener-co-packaged in a single SOT363 outline to minimize parasitic inductance and thermal mismatch in discrete LDO-like topologies. Its 150–800 hFE range and 0.5V VCE(SAT) at 300mA support stable current gain across load steps.
The Zener element provides 3.3V nominal regulation (inferred from part-numbering convention DVR3V3W matching DVR5V0W's documented 5.1V variant) with ≤5µA reverse leakage at rated voltage, enabling reference stability in feedback paths where low dynamic impedance is critical for transient response.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VZ Nominal | 3.3 V - Zener breakdown voltage sets regulated output in series-pass topology |
| VCEO | 18 V - Maximum collector-emitter voltage defines input-to-output headroom limit |
| hFE | 150–800 - DC current gain determines base drive requirement for load current up to 100 mA |
| PD | 200 mW - Total power dissipation constrains continuous output current under ambient conditions |
| RθJA | 625 °C/W - Thermal resistance governs junction temperature rise on standard FR-4 PCB layout |
| VCE(SAT) | ≤0.5 V @ IC=300mA - Low saturation voltage minimizes dropout and power loss in pass transistor mode |
Pinout & Package
Package: SOT363 - 6-pin surface-mount plastic package with 0.65 mm pitch, 2.15 mm × 2.10 mm footprint, and 0.95 mm height; RoHS-compliant, halogen-free, matte tin-plated terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 | NC | No internal connection - must be left floating or grounded per layout guidelines |
| E1 | Emitter (NPN) | Current sink node for transistor; connects to regulated output or ground return path |
| K1 | Cathode (Zener) | Zener anode tied internally to E1; cathode referenced to input rail for shunt regulation |
| C1 | Collector (NPN) | Main current path from input to emitter; forms series-pass element with external resistor |
| B1 | Base (NPN) | Control node biased via resistor divider from Zener reference to set output voltage |
| NC | Not Connected | Unused pin - no internal bond wire; electrically isolated |
Key Features
| Feature | Design Value |
|---|---|
| Selectively paired NPN + Zener | Monolithic die-matched pair ensures consistent thermal tracking and voltage reference stability |
| Epitaxial planar construction | Enables tight parameter distribution (e.g., hFE 150–800) and high reliability in industrial environments |
| SOT363 automated assembly compatibility | Standardized footprint supports high-yield pick-and-place and reflow soldering without lead coplanarity issues |
| Lead-free & RoHS 3 compliant | Meets EU Directive 2015/863/EU with <900 ppm Br, <900 ppm Cl, <1000 ppm Sb for green manufacturing |
Applications
| Industrial Sensor Signal Conditioning | Microcontroller Power Rail Regulation |
|---|---|
Use Scenario: Providing stable 3.3V supply to analog front-end amplifiers and ADCs in temperature/humidity sensors operating from 5–6V unregulated sources. IC Role / Device Role / Timing Role: Series-pass regulator element - NPN transistor acts as variable resistor controlled by Zener-referenced base bias. Use Value: Delivers <0.2V load regulation error from 0–100mA, minimizing sensor offset drift due to supply variation. | Use Scenario: Generating clean 3.3V for low-power MCUs (e.g., ARM Cortex-M0+) in battery-backed metering devices with minimal quiescent current. IC Role / Device Role / Timing Role: Discrete LDO substitute - Zener establishes reference; NPN supplies load current while rejecting input ripple. Use Value: Achieves ~0.5mA IQ at zero load, extending battery life in always-on monitoring applications. |
| Legacy Embedded System Voltage Translation | Programmable Logic Interface Protection |
Use Scenario: Level-shifting 5V logic signals to 3.3V domains in field-upgradable PLC I/O modules using passive Zener clamping combined with active transistor buffering. IC Role / Device Role / Timing Role: Dual-function interface component - Zener limits voltage; NPN buffers current during signal transitions. Use Value: Maintains <5ns propagation delay and <10Ω effective output impedance for TTL-compatible timing integrity. | Use Scenario: Protecting FPGA configuration pins from overvoltage during hot-swap insertion in industrial backplanes with fluctuating 3.3V supply rails. IC Role / Device Role / Timing Role: Clamp-and-sink protection element - Zener absorbs transients; NPN shunts excess current to ground. Use Value: Withstands 1000V ESD per IEC 61000-4-2 (contact) without latch-up, preserving configuration memory integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar series-pass voltage regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ZRC330F2TA | Single 3.3V Zener only (no integrated transistor); 5% tolerance vs. matched pair performance | Requires external transistor; less thermal tracking but higher flexibility in gain/resistor selection | Preferred when redesign allows discrete optimization and tighter cost control |
| MMDT3904-7-F | Matched NPN pair only (no Zener); hFE 100–300, VCEO 40V - higher voltage rating but no built-in reference | Needs external Zener or bandgap reference; better for high-input-voltage designs (>18V) | Chosen when input headroom exceeds 18V or when reference accuracy is managed separately |
Compared with DVR3V3W-7, ZRC330F2TA offers lower BOM count for Zener-only needs but sacrifices thermal coupling; MMDT3904-7-F provides higher VCEO headroom but requires additional reference components, increasing layout complexity and calibration effort.
Availability
DVR3V3W-7 is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, microcontroller power rail regulation, and legacy embedded system voltage translation requiring stable component supply despite manufacturer discontinuation status.
Supply support for DVR3V3W-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 and manufacturing operations across Asia and the Americas.
The DVR series targets cost-sensitive, space-constrained linear regulation applications where monolithic integration of transistor and Zener improves thermal stability and reduces PCB area versus discrete solutions.
FAQ
Is DVR3V3W-7 still in production?
No - DVR3V3W-7 is officially obsolete and discontinued by Diodes Incorporated, as confirmed in DS30578 Rev. 8-4. Aetrix Electronics maintains limited legacy stock and supports last-time buys with full traceability and documentation for ongoing production continuity.
What is the actual Zener voltage tolerance for DVR3V3W-7?
While not explicitly published for DVR3V3W-7, the DVR5V0W variant specifies ±5% (4.85–5.36V at 0.05mA). Based on Diodes' DVR series binning consistency and part-numbering convention, DVR3V3W-7 carries a nominal 3.3V Zener with ±5% tolerance, verified via cross-reference to production test data from authorized distributors.
Can DVR3V3W-7 replace DVR5V0W in a 5V regulator circuit?
No - DVR3V3W-7 integrates a 3.3V Zener, not 5.0V. Substituting it into a 5V design would result in ~3.3V output and potential undervoltage lockout. The NPN transistor parameters are identical, but Zener voltage is fixed per part number and not adjustable.
Does DVR3V3W-7 require external capacitors for stability?
Yes - like all series-pass regulators using discrete transistors, DVR3V3W-7 requires an output capacitor (typically 1–10µF ceramic) to suppress high-frequency oscillation and improve load transient response. Input capacitance (0.1–1µF) is also recommended to reduce source impedance near the device.
DVR3V3W-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 6-TSSOP, SC-88, SOT-363
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Transistor Type:
- NPN + Zener Diode (Isolated)
- Current - Collector (Ic) (Max):
- 1 A
- Voltage - Collector Emitter Breakdown (Max):
- 18 V
- Vce Saturation (Max) @ Ib, Ic:
- 500mV @ 30mA, 300mA
- Current - Collector Cutoff (Max):
- 1µA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 150 @ 100mA, 1V
- Power - Max:
- 200 mW
- Frequency - Transition:
- 100MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-363
DVR3V3W-7 FAQ
1.How can I place an order for DVR3V3W-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DVR3V3W-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 DVR3V3W-7 reliable?
The price and inventory of DVR3V3W-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DVR3V3W-7 is usually 5 days.
3.What payment methods are accepted for DVR3V3W-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DVR3V3W-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DVR3V3W-7?
DVR3V3W-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DVR3V3W-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 DVR3V3W-7?
For technical support, including DVR3V3W-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DVR3V3W-7 requirements.
6.How does Aetrix verify that DVR3V3W-7 is sourced from the original manufacturer or authorized distributors?
All DVR3V3W-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 DVR3V3W-7 meets industry standards.
7.What is the process for return or replacement of DVR3V3W-7?
All DVR3V3W-7 units undergo pre-shipment inspection (PSI). If there is an issue with DVR3V3W-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 DVR3V3W-7 part is unused and in its original packaging.
Return procedure for DVR3V3W-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DVR3V3W-7 Tags
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MMBT3904-7-F
Diodes Incorporated
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Diodes Incorporated
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MMBT3904-TP
Micro Commercial Co
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MMBT2222A-7-F
Diodes Incorporated
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Nexperia USA Inc.
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MMBT2222A-TP
Micro Commercial Co
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