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NXP Semiconductors BZX84-C24/LF1VL
- Part No.:
- BZX84-C24/LF1VL
- Manufacturer:
- NXP Semiconductors
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZX84-C24/LF1VL.pdf
- Description:
- DIODE ZENER 24V 250MW SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:6,340
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Product details
Overview
BZX84-C24/LF1VL from NXP Semiconductors is a ±5 % tolerance Zener voltage regulator diode in SOT23 (TO-236AB) package, rated for 24 V nominal breakdown voltage at 5 mA, 250 mW total power dissipation, and AEC-Q101 qualification for automotive use.
For engineers reviewing the BZX84-C24/LF1VL datasheet, BZX84-C24/LF1VL pinout, BZX84-C24/LF1VL application, or BZX84-C24/LF1VL equivalent, this page delivers verified specifications, terminal roles, thermal limits, automotive-grade reliability data, and direct alternative part comparisons - all confirmed against NXP's Rev. 6 (2014) product data sheet.
Technical Context
The BZX84-C24/LF1VL operates as a two-terminal shunt voltage reference, maintaining regulation by conducting reverse current above its specified Zener voltage (22.8–25.6 V). Its differential resistance of 60–250 Ω at IZ = 5 mA defines load regulation sensitivity, while temperature coefficient of −1.6 to +0.05 mV/K indicates low drift across operating range.
Designed for low-power stabilization in space-constrained PCBs, it supports pulse operation up to 40 W non-repetitive peak reverse power (tp ≤ 100 μs), with junction-to-ambient thermal resistance of 500 K/W on FR4 board - enabling use in ambient temperatures up to +150 °C without forced cooling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 22.8 V to 25.6 V at IZ = 5 mA - defines stable regulation window under typical bias conditions |
| Tolerance | ±5 % - specifies maximum deviation from nominal 24 V, critical for supply rail margining |
| Total Power Dissipation (Ptot) | 250 mW at Tamb ≤ 25 °C - sets continuous DC power limit before thermal derating applies |
| Forward Voltage (VF) | ≤ 0.9 V at IF = 10 mA - ensures low-loss conduction during forward-biased transient events |
| Non-repetitive Peak Reverse Power | 40 W (tp ≤ 100 μs) - enables surge suppression in ESD or inductive kick scenarios |
| Junction Temperature Range | −65 °C to +150 °C - supports operation in under-hood automotive and industrial environments |
| AEC-Q101 Qualified | Yes - validated for automotive electronics per stress-test standard for discrete semiconductors |
Pinout & Package
SOT23 (TO-236AB) plastic surface-mounted package: 3-lead, 2.8 mm × 1.4 mm footprint, 1.1 mm height, tin-plated terminations compatible with standard reflow and wave soldering profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (A) | Anode | Forward-biased terminal; connects to lower-potential node during regulation |
| 2 (n.c.) | Not Connected | Internal die pad with no electrical bond - must remain unconnected on PCB |
| 3 (K) | Cathode | Reverse-biased terminal; connects to higher-potential node and serves as voltage reference output |
Key Features
| Feature | Design Value |
|---|---|
| Automotive Qualification | AEC-Q101 qualified - meets stress-test requirements for automotive discrete semiconductors |
| Low-Power Regulation | 250 mW Ptot rating - suitable for battery-powered and energy-sensitive circuits |
| Precision Voltage Reference | 24 V nominal with ±5 % tolerance - provides predictable clamping in feedback and protection paths |
| Thermal Robustness | 150 °C max junction temperature - enables reliable operation in high-ambient environments |
| ESD-Safe Pulse Handling | 40 W non-repetitive peak reverse power - absorbs short-duration transients without failure |
Applications
| Overvoltage Protection | Power Supply Feedback |
|---|---|
|
Use Scenario: Clamping 24 V rail against load dump or back-EMF spikes in automotive body control modules. IC Role / Device Role / Timing Role: Shunt regulator acting as voltage clamp between supply and ground. Use Value: Prevents downstream IC damage by limiting transient excursions to ≤25.6 V with 40 W surge capability. |
Use Scenario: Setting precise 24 V reference in isolated DC-DC converter feedback loop. IC Role / Device Role / Timing Role: Voltage reference element in optocoupler-coupled error amplifier path. Use Value: Maintains output regulation accuracy within ±5 % despite input variation and temperature drift. |
| Signal Level Translation | Microcontroller I/O Protection |
|
Use Scenario: Biasing analog sensor outputs to 24 V domain in industrial 4–20 mA transmitter circuits. IC Role / Device Role / Timing Role: Passive level-shifting reference connected between signal line and 24 V rail. Use Value: Enables robust interface between 3.3 V microcontrollers and 24 V field devices using simple resistor divider. |
Use Scenario: Protecting GPIO pins of automotive microcontrollers from 24 V miswiring or hot-swap events. IC Role / Device Role / Timing Role: Clamp diode tied between I/O pin and 24 V supply rail. Use Value: Limits pin voltage to 25.6 V maximum, preventing latch-up or oxide breakdown during fault conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5249BS-7-F (Diodes Inc.) | 24 V, ±5 %, SOT23, 350 mW Ptot, 100 °C max Tj | Higher power rating but lower thermal endurance; not AEC-Q101 qualified | Select when higher continuous dissipation is needed and automotive qualification is not required. |
| BZX84-C24-TP (Micro Commercial Components) | 24 V, ±5 %, SOT23, 350 mW Ptot, 150 °C Tj, AEC-Q101 qualified | Same regulation spec and qualification, but 350 mW rating allows extended DC operation | Choose for designs requiring >250 mW steady-state dissipation while retaining automotive compliance. |
Compared with BZX84-C24/LF1VL, MMBZ5249BS-7-F offers higher power but lacks automotive qualification, while BZX84-C24-TP matches AEC-Q101 status and extends power handling - making it a drop-in upgrade where layout and thermal design permit.
Availability
BZX84-C24/LF1VL is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, and 24 V power supply feedback networks requiring stable component supply and AEC-Q101 assurance.
Supply support for BZX84-C24/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 specializing in secure connectivity solutions for automotive, industrial, and IoT applications, with leadership in automotive-grade analog and discrete components.
The BZX84 series was designed specifically for cost-effective, space-efficient voltage regulation and transient suppression in automotive ECUs, power supplies, and sensor signal conditioning - emphasizing AEC-Q101 reliability and SOT23 manufacturability.
FAQ
What is the exact Zener voltage range for BZX84-C24/LF1VL?
The BZX84-C24/LF1VL has a guaranteed Zener voltage range of 22.8 V to 25.6 V at test current IZ = 5 mA, per Table 8 of NXP's Rev. 6 datasheet. This ±5 % tolerance reflects the "C" grade variant and is measured at Tj = 25 °C.
Is BZX84-C24/LF1VL suitable for automotive applications?
Yes, BZX84-C24/LF1VL is AEC-Q101 qualified per Section 8.1 of the NXP datasheet, confirming its suitability for automotive electronics including body control modules, lighting drivers, and sensor interfaces where reliability under thermal and mechanical stress is required.
What is the maximum forward current rating for BZX84-C24/LF1VL?
The absolute maximum forward current for BZX84-C24/LF1VL is 200 mA, as specified in Table 5 (Limiting Values) of the NXP datasheet. However, typical forward operation uses ≤10 mA (VF ≤ 0.9 V), and sustained forward conduction is not its intended function.
Does BZX84-C24/LF1VL have a connected pin 2?
No, pin 2 of BZX84-C24/LF1VL is internally not connected (n.c.), as confirmed in Table 2 (Pinning) of the NXP datasheet. It must remain unconnected on the PCB layout to avoid unintended parasitic coupling or solder bridging.
What is the thermal resistance from junction to ambient for BZX84-C24/LF1VL?
The thermal resistance from junction to ambient (Rth(j-a)) for BZX84-C24/LF1VL is 500 K/W under free-air conditions on FR4 PCB with single-sided copper and standard footprint, per Table 6 of the NXP datasheet - used to calculate junction temperature rise under DC bias.
BZX84-C24/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):
- 24 V
- Tolerance:
- ±5%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 70 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 16.8 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-C24/LF1VL FAQ
1.How can I place an order for BZX84-C24/LF1VL through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84-C24/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-C24/LF1VL reliable?
The price and inventory of BZX84-C24/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-C24/LF1VL is usually 5 days.
3.What payment methods are accepted for BZX84-C24/LF1VL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84-C24/LF1VL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84-C24/LF1VL?
BZX84-C24/LF1VL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84-C24/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-C24/LF1VL?
For technical support, including BZX84-C24/LF1VL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84-C24/LF1VL requirements.
6.How does Aetrix verify that BZX84-C24/LF1VL is sourced from the original manufacturer or authorized distributors?
All BZX84-C24/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-C24/LF1VL meets industry standards.
7.What is the process for return or replacement of BZX84-C24/LF1VL?
All BZX84-C24/LF1VL units undergo pre-shipment inspection (PSI). If there is an issue with BZX84-C24/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-C24/LF1VL part is unused and in its original packaging.
Return procedure for BZX84-C24/LF1VL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84-C24/LF1VL Tags
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