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NXP Semiconductors BZX84-C3V0/LF1VL
- Part No.:
- BZX84-C3V0/LF1VL
- Manufacturer:
- NXP Semiconductors
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZX84-C3V0/LF1VL.pdf
- Description:
- DIODE ZENER 3V 250MW SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:9,322
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Product details
Overview
BZX84-C3V0/LF1VL from NXP Semiconductors is a 3.0 V ±5 % tolerance Zener voltage regulator diode in SOT23 (TO-236AB) package, rated for 250 mW total power dissipation at 25 °C ambient, with 80 Ω typical differential resistance at 5 mA and ≤10 μA reverse current at 1.0 V. It serves as a precision reference or low-power voltage clamp in power supply feedback paths and signal-level protection circuits.
For engineers reviewing the BZX84-C3V0/LF1VL datasheet, BZX84-C3V0/LF1VL pinout, BZX84-C3V0/LF1VL application, or BZX84-C3V0/LF1VL equivalent, key selection criteria include its ±5 % Zener voltage tolerance, AEC-Q101 qualification for automotive use, 3.0 V nominal breakdown, SOT23 footprint compatibility, and thermal resistance of 500 K/W junction-to-ambient in free air.
Technical Context
This device operates as a two-terminal silicon Zener diode, conducting in reverse bias above its specified breakdown voltage to maintain stable voltage regulation. Its performance is defined under DC and pulsed conditions: non-repetitive peak reverse power dissipation is 40 W (tp ≤100 μs), and forward voltage is ≤0.9 V at 10 mA.
The BZX84-C3V0/LF1VL belongs to the BZX84-C series with approximately ±5 % tolerance, distinguishing it from the tighter-tolerance A (±1 %) and B (±2 %) variants. It is qualified per AEC-Q101 for automotive applications and exhibits a temperature coefficient of −2.1 mV/K at 5 mA, indicating negative drift with rising junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 2.8 V to 3.2 V at IZ = 5 mA - defines usable regulation range under standard test condition |
| Tolerance | Approximately ±5 % - determines worst-case output deviation in voltage reference designs |
| Differential Resistance (rdif) | Typ. 80 Ω at IZ = 5 mA - impacts regulation stiffness and load-induced voltage variation |
| Reverse Current (IR) | ≤10 μA at VR = 1.0 V - indicates leakage level below breakdown, critical for low-power standby circuits |
| Total Power Dissipation (Ptot) | 250 mW at Tamb ≤25 °C - sets maximum continuous DC power handling on FR4 PCB |
| Non-repetitive Peak Reverse Power | 40 W (tp ≤100 μs) - supports transient overvoltage clamping without damage |
| Junction-to-Ambient Thermal Resistance | 500 K/W in free air - governs temperature rise under steady-state power dissipation |
Pinout & Package
Package: SOT23 (TO-236AB), plastic surface-mounted package with 3 leads; dimensions 2.9 mm × 1.3 mm × 1.0 mm (L × W × H), standard footprint per Fig 9 and Fig 10.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (A) | Forward-biased terminal; connects to lower-potential node in Zener operation (reverse bias) |
| 2 | Not Connected (n.c.) | Internal die pad with no electrical connection; must remain unconnected on PCB |
| 3 | Cathode (K) | Reverse-biased terminal; connects to higher-potential node to enable Zener conduction |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, humidity, and mechanical stress testing |
| ±5 % Zener voltage tolerance | Cost-optimized regulation accuracy suitable for non-critical reference and clamping functions |
| SOT23 surface-mount package | Enables high-density PCB layouts and compatibility with standard reflow/wave soldering processes |
| 250 mW power rating | Supports low-current regulation in battery-powered sensors, microcontroller I/O protection, and bias networks |
| Negative temperature coefficient | −2.1 mV/K enables predictable drift compensation when paired with positive-TC components |
Applications
| Power Supply Feedback Reference | Microcontroller I/O Protection |
|---|---|
Use Scenario: Stabilizing output voltage in low-power linear regulators or switching converter feedback loops. IC Role / Device Role / Timing Role: Provides precise 3.0 V reference point for error amplifier comparison. Use Value: Enables stable 3.3 V rail regulation with <1 % output variation across load and line changes. |
Use Scenario: Clamping ESD transients on GPIO lines of automotive body control modules. IC Role / Device Role / Timing Role: Acts as bidirectional voltage limiter between MCU pin and external connector. Use Value: Limits pin voltage to ≤3.2 V during 8 kV contact discharge, preventing latch-up or oxide damage. |
| Automotive Sensor Biasing | Low-Voltage Signal Level Shifting |
Use Scenario: Generating stable bias voltage for analog sensor front-ends in engine control units. IC Role / Device Role / Timing Role: Supplies regulated 3.0 V reference to op-amp input stages and ADC references. Use Value: Reduces sensor offset drift by >40 % compared to resistor-divider bias under temperature cycling. |
Use Scenario: Translating 5 V logic signals down to 3.3 V compatible levels in mixed-voltage systems. IC Role / Device Role / Timing Role: Functions as passive level shifter via Zener clamping at cathode node. Use Value: Achieves sub-10 ns response with <0.5 V overshoot on 10 MHz square wave transitions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage regulator diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor MMBZ5222BS | 3.0 V ±5 %, 225 mW Ptot, 100 Ω rdif at 20 mA - lower power rating and higher dynamic impedance | Less suitable for high-precision feedback but adequate for basic clamping where 225 mW suffices | Select when cost sensitivity outweighs regulation stiffness requirements and board space allows same SOT23 footprint |
| Vishay BZX84-C3V0-TP | 3.0 V ±5 %, 300 mW Ptot, 75 Ω rdif at 5 mA - higher power rating and slightly lower impedance | Better suited for higher-current reference loads (>10 mA) and improved thermal margin in compact layouts | Prefer when operating near 250 mW limit or requiring enhanced long-term stability under sustained bias |
Compared with BZX84-C3V0/LF1VL, MMBZ5222BS offers lower cost but reduced power handling and regulation precision, while BZX84-C3V0-TP provides higher thermal robustness and tighter dynamic impedance-making it preferable for demanding automotive sensor biasing where sustained 5 mA operation occurs.
Availability
BZX84-C3V0/LF1VL is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, and consumer power management systems requiring stable component supply with AEC-Q101 compliance and SOT23 footprint consistency.
Supply support for BZX84-C3V0/LF1VL 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
NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT applications.
The BZX84 series was designed as a cost-effective, AEC-Q101-qualified family of Zener diodes targeting voltage regulation, reference, and transient suppression in space-constrained automotive and industrial PCBs.
FAQ
What is the Zener voltage tolerance of BZX84-C3V0/LF1VL?
The BZX84-C3V0/LF1VL has an approximate ±5 % Zener voltage tolerance, meaning its breakdown voltage falls between 2.8 V and 3.2 V when tested at 5 mA. This tolerance band is defined per the "C" variant of the BZX84 series and is confirmed in Table 8 of the NXP datasheet Rev. 6. The BZX84-C3V0/LF1VL is not rated for ±1 % or ±2 % tolerance.
Is BZX84-C3V0/LF1VL qualified for automotive use?
Yes, BZX84-C3V0/LF1VL is AEC-Q101 qualified per Section 8.1 of the NXP datasheet. This qualification covers stress tests including temperature cycling, high-temperature operating life, and electrostatic discharge, confirming suitability for automotive powertrain, body electronics, and infotainment systems.
What is the maximum continuous power dissipation for BZX84-C3V0/LF1VL?
The BZX84-C3V0/LF1VL has a maximum total power dissipation (Ptot) of 250 mW at ambient temperatures ≤25 °C, measured on a FR4 PCB with single-sided copper and standard SOT23 footprint. Derating is required above 25 °C per the thermal resistance specification of 500 K/W.
How does the temperature coefficient affect BZX84-C3V0/LF1VL performance?
The BZX84-C3V0/LF1VL exhibits a temperature coefficient of −2.1 mV/K at 5 mA, meaning its Zener voltage decreases by approximately 2.1 mV per Kelvin increase in junction temperature. This negative drift must be accounted for in precision reference designs operating across −40 °C to +125 °C ambient ranges.
What are the pin connections for BZX84-C3V0/LF1VL in SOT23 package?
In the SOT23 package, BZX84-C3V0/LF1VL has three terminals: Pin 1 is Anode (A), Pin 2 is Not Connected (n.c.), and Pin 3 is Cathode (K). Correct orientation is critical-cathode must connect to the higher-potential node to achieve reverse-bias Zener operation; Pin 2 must remain unconnected on the PCB layout.
BZX84-C3V0/LF1VL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 3 V
- Tolerance:
- ±5%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 95 Ohms
- Current - Reverse Leakage @ Vr:
- 10 µA @ 1 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -65°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23 (TO-236AB)
BZX84-C3V0/LF1VL FAQ
1.How can I place an order for BZX84-C3V0/LF1VL through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84-C3V0/LF1VL 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 BZX84-C3V0/LF1VL reliable?
The price and inventory of BZX84-C3V0/LF1VL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84-C3V0/LF1VL is usually 5 days.
3.What payment methods are accepted for BZX84-C3V0/LF1VL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84-C3V0/LF1VL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84-C3V0/LF1VL?
BZX84-C3V0/LF1VL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84-C3V0/LF1VL 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 BZX84-C3V0/LF1VL?
For technical support, including BZX84-C3V0/LF1VL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84-C3V0/LF1VL requirements.
6.How does Aetrix verify that BZX84-C3V0/LF1VL is sourced from the original manufacturer or authorized distributors?
All BZX84-C3V0/LF1VL 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 BZX84-C3V0/LF1VL meets industry standards.
7.What is the process for return or replacement of BZX84-C3V0/LF1VL?
All BZX84-C3V0/LF1VL units undergo pre-shipment inspection (PSI). If there is an issue with BZX84-C3V0/LF1VL, 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 BZX84-C3V0/LF1VL part is unused and in its original packaging.
Return procedure for BZX84-C3V0/LF1VL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84-C3V0/LF1VL Tags
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MMBZ5240B-7-F
Diodes Incorporated
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