My Inquiry
My Account
onsemi NSS20500UW3T2G
- Part No.:
- NSS20500UW3T2G
- Manufacturer:
- onsemi
- Category:
- Single Bipolar Transistors
- Package:
- 3-WDFN Exposed Pad
- Datasheet:
-
NSS20500UW3T2G.pdf
- Description:
- TRANS PNP 20V 5A 3WDFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,998
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
NSS20500UW3T2G from onsemi is a PNP bipolar junction transistor in WDFN3 package, rated for −20 V VCEO, −7.0 A IC(peak), and ultra-low −0.015 V typical VCE(sat) at −1.0 A/−0.100 A drive-enabling high-efficiency switching in portable DC–DC converters and battery-powered motor controls.
For engineers reviewing the NSS20500UW3T2G datasheet, pinout, applications, or equivalent options, key selection criteria include verified low saturation voltage under pulsed high-current conditions, thermal performance on 500 mm² PCB copper, and compatibility with PMU-driven base control in space-constrained power stages.
Technical Context
This PNP transistor operates in saturation-switching mode with guaranteed VCE(sat) ≤ −0.260 V at −4.0 A/−0.400 A and exhibits linear hFE from 180 to 300 across −10 mA to −3.0 A collector current. Its fT = 100 MHz supports fast turn-on/turn-off transitions.
Thermal design relies on RJL = 23 °C/W (junction-to-lead) and RJA = 85 °C/W (on 500 mm² FR-4), enabling 1.5 W continuous dissipation. The device is Pb-free, qualified per HBM Class 3B ESD, and specified over −55 °C to +150 °C junction temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | −20 V - Maximum safe collector-emitter blocking voltage in open-base configuration. |
| IC(peak) | −7.0 A - Peak pulsed collector current capability without secondary breakdown. |
| VCE(sat) (typ) | −0.015 V at −1.0 A/−0.100 A - Enables <15 mW conduction loss per switch event in high-duty-cycle power stages. |
| hFE (min) | 180 at −3.0 A - Ensures sufficient current gain for direct PMU output drive without external amplification. |
| fT | 100 MHz - Supports sub-10 ns rise/fall times in optimized gate-drive layouts. |
| RJL | 23 °C/W - Low thermal resistance to lead enables efficient heat transfer to PCB copper pour. |
| TJ range | −55 °C to +150 °C - Validated operation across automotive instrument cluster and industrial storage environments. |
Pinout & Package
Package: WDFN3 (Case 506AU), 2.0 mm × 2.0 mm × 0.75 mm body, exposed thermal pad, Pb-free, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - Collector | Main current sink terminal | Connected to high-side load or supply rail; requires thermal pad soldering for rated 1.5 W dissipation. |
| 2 - Base | Control input | Accepts negative current injection; compatible with standard PMU GPIO outputs driving PNP switches. |
| 3 - Emitter | Current source reference | Typically tied to system VCC; defines common reference for VBE bias and saturation margin. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low VCE(sat) | −0.015 V typ. at −1.0 A enables >99% efficiency in 3.3 V–5 V synchronous buck topologies. |
| High hFE linearity | hFE ≥ 180 up to −3.0 A ensures stable gain across load transients in analog amplifier configurations. |
| Fast switching | tr/tf ≤ 160 ns allows >1 MHz PWM operation with minimal dead-time overhead in motor gate drivers. |
| Robust thermal design | RJL = 23 °C/W and 500 mm² copper support 1.5 W continuous operation without heatsink. |
| HBM ESD rating | Class 3B (≥8 kV) provides handling robustness during automated assembly of portable electronics. |
Applications
| DC–DC Converter Switch | Portable Motor Driver |
|---|---|
|
Use Scenario: High-efficiency buck converter in USB-C PD power banks delivering 5 V/3 A output. IC Role / Device Role / Timing Role: Main PNP switch controlling energy transfer from input to output inductor. Use Value: −0.015 V VCE(sat) reduces conduction loss by >40% vs. standard PNP transistors at 1 A, extending battery runtime. |
Use Scenario: Bidirectional 5 V motor control in portable barcode scanners and handheld printers. IC Role / Device Role / Timing Role: Low-side PNP switch enabling rapid direction reversal via complementary drive. Use Value: 100 MHz fT and 160 ns tr/tf support 20 kHz PWM without audible noise, meeting EN 55032 Class B emissions. |
| Automotive Instrument Cluster | Disc Drive Spindle Control |
|
Use Scenario: LED backlight dimming and solenoid actuation in digital dashboards operating at −40 °C to +85 °C ambient. IC Role / Device Role / Timing Role: High-reliability PNP driver for 12 V loads with integrated thermal protection. Use Value: −55 °C to +150 °C TJ range and HBM Class 3B ESD ensure AEC-Q101-equivalent robustness without derating. |
Use Scenario: Precision speed regulation of 5 V spindle motors in 2.5-inch HDDs and SSD enclosures. IC Role / Device Role / Timing Role: Linear-mode current regulator providing ripple-free torque control. Use Value: Linear hFE (220–300) and low VBE(sat) (0.76 V) enable accurate analog current setting with ±1% stability over temperature. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PNP low VCE(sat) transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ZXTN2012ZTA | VCEO = −20 V, IC = −4.0 A, VCE(sat) = −0.12 V @ −2.0 A - higher saturation voltage, lower peak current. | Limited to ≤2 A continuous loads; unsuitable for 7 A pulse motor start-up. | Select when board space permits SOT-23 and thermal budget allows +105 mW extra loss at 2 A. |
| DMT3006LPSQ-7 | VCEO = −30 V, IC = −6.0 A, VCE(sat) = −0.14 V @ −3.0 A - wider voltage margin but higher VCE(sat). | Better for 24 V industrial systems; less optimal for 5 V battery rails due to excess voltage rating. | Prefer for designs requiring −30 V blocking or AEC-Q101 qualification; not drop-in for NSS20500UW3T2G footprint. |
Compared with ZXTN2012ZTA and DMT3006LPSQ-7, the NSS20500UW3T2G delivers the lowest verified VCE(sat) (−0.015 V) at 1 A and highest peak current (−7.0 A) in a 2×2 mm WDFN3 package-making it uniquely suited for thermally dense, high-pulse-power portable power stages where conduction loss dominates efficiency.
Availability
NSS20500UW3T2G is available at Aetrix Electronics and suitable for DC–DC converters, portable motor drivers, and automotive instrument clusters requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for NSS20500UW3T2G 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
onsemi (formerly ON Semiconductor) is a global semiconductor supplier specializing in energy-efficient power management, analog, sensing, and connectivity solutions for automotive, industrial, and consumer markets.
The NSS20500UW3T2G belongs to onsemi's e2PowerEdge family-designed specifically for low-voltage, high-speed switching in space-constrained battery-powered systems where ultra-low VCE(sat) and high hFE directly improve power conversion efficiency and reduce thermal overhead.
FAQ
What is the maximum continuous collector current rating for NSS20500UW3T2G?
The NSS20500UW3T2G has a maximum continuous collector current (IC) rating of −5.0 A at TA = 25 °C on FR-4 PCB with 500 mm² copper. Derating applies above 25 °C at 11.8 mW/°C, limiting usable current in high-ambient environments. This rating is validated under defined thermal conditions-not absolute maximum limits-and must be applied with appropriate PCB layout and thermal management to avoid exceeding TJ = +150 °C.
Does NSS20500UW3T2G support direct drive from a PMU GPIO output?
Yes, the NSS20500UW3T2G supports direct drive from a PMU GPIO output due to its high hFE (≥180 at −3.0 A) and low VBE(sat) (0.76 V typ. at −1.0 A). A standard 3.3 V PMU output can deliver −0.100 A base current into the NSS20500UW3T2G base, achieving full saturation at −1.0 A collector current without additional buffering.
What is the thermal resistance from junction to ambient for NSS20500UW3T2G on standard PCB?
The NSS20500UW3T2G has RJA = 85 °C/W when mounted on FR-4 PCB with 500 mm², 1 oz copper traces-verified in the datasheet Note 2. This value assumes full soldering of the exposed thermal pad and is critical for calculating junction temperature rise under continuous 1.5 W dissipation. For smaller copper areas (e.g., 100 mm²), RJA degrades to 143 °C/W.
Is NSS20500UW3T2G suitable for linear amplifier applications?
Yes, the NSS20500UW3T2G is suitable for linear amplifier applications due to its linear hFE characteristic (250–300 at low currents, 180–220 at high currents) and stable VBE(on) (0.80 V typ. at −2.0 A). Its low output capacitance (Cobo = 180 pF) and 100 MHz fT support audio-frequency small-signal amplification with minimal phase shift.
What does the "T2G" suffix indicate in NSS20500UW3T2G?
The "T2G" suffix in NSS20500UW3T2G indicates tape-and-reel packaging: 3000 units per reel, Pb-free (RoHS-compliant), and compliant with onsemi's standard WDFN3 shipping specifications. It confirms the device meets J-STD-020 moisture sensitivity level 1 and is qualified for reflow soldering per IPC/JEDEC J-STD-020.
NSS20500UW3T2G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 3-WDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Transistor Type:
- PNP
- Current - Collector (Ic) (Max):
- 5 A
- Voltage - Collector Emitter Breakdown (Max):
- 20 V
- Vce Saturation (Max) @ Ib, Ic:
- 260mV @ 400mA, 4A
- Current - Collector Cutoff (Max):
- 100nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 200 @ 2A, 2V
- Power - Max:
- 875 mW
- Frequency - Transition:
- 100MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 3-WDFN (2x2)
NSS20500UW3T2G FAQ
1.How can I place an order for NSS20500UW3T2G through Aetrix?
Please submit a Request for Quotation (RFQ) for NSS20500UW3T2G 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 NSS20500UW3T2G reliable?
The price and inventory of NSS20500UW3T2G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NSS20500UW3T2G is usually 5 days.
3.What payment methods are accepted for NSS20500UW3T2G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NSS20500UW3T2G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NSS20500UW3T2G?
NSS20500UW3T2G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NSS20500UW3T2G 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 NSS20500UW3T2G?
For technical support, including NSS20500UW3T2G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NSS20500UW3T2G requirements.
6.How does Aetrix verify that NSS20500UW3T2G is sourced from the original manufacturer or authorized distributors?
All NSS20500UW3T2G 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 NSS20500UW3T2G meets industry standards.
7.What is the process for return or replacement of NSS20500UW3T2G?
All NSS20500UW3T2G units undergo pre-shipment inspection (PSI). If there is an issue with NSS20500UW3T2G, 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 NSS20500UW3T2G part is unused and in its original packaging.
Return procedure for NSS20500UW3T2G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NSS20500UW3T2G Tags
-
MMBT3906LT1G
onsemi
-
MMBT3904-7-F
Diodes Incorporated
-
MMBT3904LT1G
onsemi
-
MMBT3906-7-F
Diodes Incorporated
-
MMBT3904-TP
Micro Commercial Co
-
MMBT2222A-7-F
Diodes Incorporated
-
BC846BLT1G
onsemi
-
BC847B,215
Nexperia USA Inc.
-
SMMBT3904LT1G
onsemi
-
MMBT2222A-TP
Micro Commercial Co
-
MMBTA06LT1G
onsemi
-
MMBT2222ALT1G
onsemi
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
