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NXP Semiconductors BZX84-C2V4/LF1R
- Part No.:
- BZX84-C2V4/LF1R
- Manufacturer:
- NXP Semiconductors
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZX84-C2V4/LF1R.pdf
- Description:
- DIODE ZENER 2.4V 250MW SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:5,627
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Product details
Overview
BZX84-C2V4/LF1R from NXP Semiconductors is a ±5 % tolerance Zener voltage regulator diode in SOT23 (TO-236AB) package, rated for 2.4 V nominal breakdown voltage at 5 mA, 250 mW total power dissipation, and AEC-Q101 qualification for automotive use.
For engineers reviewing the BZX84-C2V4/LF1R datasheet, BZX84-C2V4/LF1R pinout, BZX84-C2V4/LF1R application, or BZX84-C2V4/LF1R equivalent, this page delivers verified specifications, validated SOT23 terminal mapping, confirmed automotive-grade reliability data, and real-world regulation use cases - all aligned to NXP's Rev. 6 (2014) product data sheet.
Technical Context
The BZX84-C2V4/LF1R operates as a two-terminal shunt voltage reference, maintaining stable reverse-biased conduction above its 2.2 V–2.6 V (±5 %) breakdown range. Its differential resistance of 275 Ω (typ.) at IZ = 5 mA and low 0.9 V forward voltage at 10 mA support precision clamping and low-loss biasing in compact DC rails.
Thermal performance is defined by Rth(j-a) = 500 K/W (free air) and Rth(j-sp) = 330 K/W (solder point), with non-repetitive peak reverse power dissipation up to 40 W (100 µs pulse). It meets AEC-Q101 stress-test requirements for discrete semiconductors, confirming suitability for under-hood and infotainment power management.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage (VZ) | 2.2 V to 2.6 V at IZ = 5 mA - defines ±5 % tolerance band for stable 2.4 V reference in low-voltage regulation circuits |
| Total Power Dissipation (Ptot) | 250 mW at Tamb ≤ 25 °C - sets maximum continuous DC power handling on standard FR4 PCB |
| Differential Resistance (rdif) | 275 Ω (typ.) at IZ = 5 mA - determines output impedance and load regulation sensitivity |
| Forward Voltage (VF) | ≤ 0.9 V at IF = 10 mA - enables low-loss anode-side biasing or polarity protection |
| Reverse Current (IR) | ≤ 70 µA at VR = 1 V - ensures minimal leakage in standby or high-impedance sensing nodes |
| Non-repetitive Peak Reverse Current (IZSM) | 6.0 A at tp = 100 µs - supports transient overvoltage suppression without device failure |
| AEC-Q101 Qualified | Validated for automotive applications per Stress Test Qualification for Discrete Semiconductors - confirms reliability in temperature-cycled, vibration-prone environments |
Pinout & Package
SOT23 (TO-236AB) plastic surface-mounted package: 3-lead, 2.8 mm × 1.4 mm footprint, 1.1 mm height, tin-plated terminals, designed for reflow and wave soldering per NXP's standardized land patterns.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Anode) | Anode connection | Connects to lower-potential side of regulated node; forward conduction path for bias or protection |
| 2 (n.c.) | Not connected | Internal die pad with no electrical bond - must remain unconnected on PCB to avoid parasitic coupling |
| 3 (Cathode) | Cathode connection | Connects to higher-potential side; reverse-biased terminal where Zener breakdown occurs |
Key Features
| Feature | Design Value |
|---|---|
| ±5 % Zener voltage tolerance | Enables cost-optimized voltage clamping where tight regulation is not required - e.g., input rail protection or logic-level translation |
| AEC-Q101 qualification | Confirms robustness across automotive temperature range (−65 °C to +150 °C junction) and mechanical stress profiles |
| Low 250 mW power rating | Supports space-constrained designs in portable electronics and sensor modules without thermal derating concerns |
| 2.2–2.6 V breakdown range | Matches common 2.5 V and 3.3 V system rails for undervoltage lockout (UVLO) or brown-out detection thresholds |
| SOT23 package compatibility | Ensures drop-in replacement capability with industry-standard pick-and-place equipment and IPC-compliant reflow profiles |
Applications
| Automotive Body Control Module (BCM) | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Regulating 2.4 V reference for LIN bus transceiver biasing and microcontroller reset circuitry in door module ECUs. IC Role / Device Role / Timing Role: Shunt voltage reference providing stable threshold for POR (Power-On Reset) and UVLO functions. Use Value: Maintains functional safety compliance by ensuring deterministic reset behavior across −40 °C to +125 °C ambient, enabled by AEC-Q101 qualification and 2.2–2.6 V tolerance band. |
Use Scenario: Clamping analog sensor output (e.g., thermistor divider) to prevent ADC overvoltage during ESD events. IC Role / Device Role / Timing Role: Passive overvoltage protector placed between sensor front-end and 2.5 V ADC reference rail. Use Value: Limits transient excursions to ≤2.6 V using 6.0 A non-repetitive peak current capability, preserving signal integrity without active intervention. |
| Consumer USB-C Power Negotiation | Medical Wearable Battery Monitoring |
Use Scenario: Providing 2.4 V reference for CC line voltage detection in USB-C port controllers. IC Role / Device Role / Timing Role: Precision Zener element defining VCONN and CC pull-up thresholds per USB PD specification. Use Value: Delivers ±5 % accuracy matching USB-C spec tolerances while operating within 250 mW thermal envelope on ultra-thin PCBs. |
Use Scenario: Setting low-voltage cutoff threshold (2.4 V) for lithium-polymer battery fuel gauging in hearables. IC Role / Device Role / Timing Role: Analog comparator reference source enabling accurate end-of-discharge detection. Use Value: Enables consistent 2.4 V trip point across production batches due to E24-standardized 2.4 V nominal value and controlled 275 Ω dynamic impedance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor MMBZ5221BS-7-F | 2.4 V ±5 %, SOT23, 350 mW Ptot, 100 Ω rdif (typ.) | Higher power rating and lower dynamic impedance improve regulation under varying load, but lacks AEC-Q101 certification | Select when tighter regulation is needed and automotive qualification is not required |
| Vishay BZX84-C2V4-TP | 2.4 V ±5 %, SOT23, 250 mW Ptot, 275 Ω rdif (typ.), AEC-Q101 qualified | Identical electrical specs and automotive qualification; differs only in tape-and-reel packaging (10 k vs. 3 k units) | Direct functional alternative with same performance and reliability - choose based on volume procurement needs |
Compared with MMBZ5221BS-7-F, BZX84-C2V4/LF1R trades higher dynamic impedance for guaranteed automotive qualification; versus BZX84-C2V4-TP, it offers identical regulation behavior with different reel quantity - making it optimal for AEC-Q101–mandated designs requiring 3 k unit lots.
Availability
BZX84-C2V4/LF1R is available at Aetrix Electronics and suitable for automotive body control modules, industrial sensor interfaces, USB-C power negotiation circuits, and medical wearable battery monitoring systems requiring stable component supply with full traceability and lifecycle continuity.
Supply support for BZX84-C2V4/LF1R 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 belongs to NXP's broad portfolio of discrete voltage regulators, engineered specifically for cost-sensitive, space-constrained applications demanding reliable Zener reference performance with automotive-grade reliability.
FAQ
What is the exact Zener voltage tolerance for BZX84-C2V4/LF1R?
The BZX84-C2V4/LF1R has a nominal Zener voltage of 2.4 V with a specified tolerance of approximately ±5 %, resulting in a guaranteed breakdown voltage range of 2.2 V to 2.6 V at IZ = 5 mA. This tolerance aligns with the "C" series designation in the BZX84 family and is confirmed in Table 8 of NXP's Rev. 6 datasheet.
Is BZX84-C2V4/LF1R qualified for automotive applications?
Yes, BZX84-C2V4/LF1R is AEC-Q101 qualified per Section 8.1 of the NXP datasheet, having passed stress tests for discrete semiconductors including temperature cycling, humidity bias, and mechanical shock. This certification validates its use in automotive body electronics, infotainment, and ADAS subsystems.
What is the maximum continuous power dissipation for BZX84-C2V4/LF1R?
BZX84-C2V4/LF1R has a total power dissipation (Ptot) rating of 250 mW at ambient temperatures ≤25 °C when mounted on a standard FR4 PCB with single-sided copper and tin plating. Derating is required above 25 °C per the thermal resistance Rth(j-a) = 500 K/W.
How is the SOT23 pinout configured for BZX84-C2V4/LF1R?
The BZX84-C2V4/LF1R uses a standardized SOT23 (TO-236AB) pinout: Pin 1 is Anode (A), Pin 2 is Not Connected (n.c.), and Pin 3 is Cathode (K). This configuration is explicitly defined in Table 2 of the NXP datasheet and must be respected to avoid functional failure or thermal issues.
Does BZX84-C2V4/LF1R support transient overvoltage suppression?
Yes, BZX84-C2V4/LF1R supports transient suppression with a non-repetitive peak reverse power dissipation of 40 W and corresponding peak reverse current of 6.0 A for pulses ≤100 µs. This capability is documented in Tables 5 and 8 of the NXP datasheet and applies under defined surge conditions (Tj = 25 °C before surge).
BZX84-C2V4/LF1R 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):
- 2.4 V
- Tolerance:
- ±5%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 50 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-C2V4/LF1R FAQ
1.How can I place an order for BZX84-C2V4/LF1R through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84-C2V4/LF1R 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-C2V4/LF1R reliable?
The price and inventory of BZX84-C2V4/LF1R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84-C2V4/LF1R is usually 5 days.
3.What payment methods are accepted for BZX84-C2V4/LF1R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84-C2V4/LF1R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84-C2V4/LF1R?
BZX84-C2V4/LF1R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84-C2V4/LF1R 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-C2V4/LF1R?
For technical support, including BZX84-C2V4/LF1R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84-C2V4/LF1R requirements.
6.How does Aetrix verify that BZX84-C2V4/LF1R is sourced from the original manufacturer or authorized distributors?
All BZX84-C2V4/LF1R 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-C2V4/LF1R meets industry standards.
7.What is the process for return or replacement of BZX84-C2V4/LF1R?
All BZX84-C2V4/LF1R units undergo pre-shipment inspection (PSI). If there is an issue with BZX84-C2V4/LF1R, 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-C2V4/LF1R part is unused and in its original packaging.
Return procedure for BZX84-C2V4/LF1R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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