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NXP Semiconductors BZX84-B5V1/LF1VL
- Part No.:
- BZX84-B5V1/LF1VL
- Manufacturer:
- NXP Semiconductors
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZX84-B5V1/LF1VL.pdf
- Description:
- DIODE ZENER 5.1V 250MW SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:5,463
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Product details
Overview
BZX84-B5V1/LF1VL from NXP Semiconductors is a ±2 % tolerance Zener voltage regulator diode in SOT23 (TO-236AB) package, rated for 5.1 V nominal breakdown voltage at 5 mA, 250 mW total power dissipation, and AEC-Q101 qualified for automotive use. It provides stable reference voltage in low-power supply regulation and overvoltage protection circuits.
For engineers reviewing the BZX84-B5V1/LF1VL datasheet, BZX84-B5V1/LF1VL pinout, BZX84-B5V1/LF1VL application, or BZX84-B5V1/LF1VL equivalent, key selection considerations include its 5.0 V to 5.2 V Zener voltage range at IZ = 5 mA, 400 Ω typical differential resistance, ≤2 µA reverse current at VR = 2 V, −0.8 to +1.2 mV/K temperature coefficient, and SOT23-compatible thermal performance on FR4 PCBs.
Technical Context
This discrete Zener diode operates in reverse-biased breakdown mode to maintain a stable reference voltage across its cathode–anode terminals. Its design targets low-current regulation (IZ = 1–5 mA), with specified characteristics measured at Tj = 25 °C and validated under non-repetitive surge conditions (tp ≤ 100 µs).
The device features a three-terminal SOT23 package with Pin 1 (anode), Pin 2 (not connected), and Pin 3 (cathode). It is qualified to AEC-Q101 for automotive applications and exhibits defined thermal resistance (Rth(j-a) = 500 K/W in free air) and surge capability (PZSM = 40 W, IZSM = 6.0 A).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 5.0 V to 5.2 V at IZ = 5 mA - defines regulated output voltage range under standard test current |
| Differential Resistance (rdif) | 400 Ω typical at IZ = 5 mA - determines voltage regulation stiffness against load current variation |
| Reverse Current (IR) | ≤2 µA at VR = 2 V - ensures minimal leakage before breakdown onset |
| Temperature Coefficient (SZ) | −0.8 to +1.2 mV/K - quantifies VZ drift per degree Celsius, critical for temperature-stable references |
| Total Power Dissipation (Ptot) | 250 mW at Tamb ≤ 25 °C - sets maximum continuous DC power handling on standard FR4 PCB |
| Non-repetitive Peak Reverse Power (PZSM) | 40 W at tp ≤ 100 µs - supports transient overvoltage clamping without failure |
| Junction Temperature Range (Tj) | −65 °C to +150 °C - enables operation in extended-temperature automotive and industrial environments |
Pinout & Package
SOT23 (TO-236AB) plastic surface-mounted package: 3-lead, 2.8 mm × 1.4 mm footprint, 1.1 mm height, with standard reflow and wave soldering land patterns.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (A) | Forward-bias terminal; connects to lower-potential node in regulation path |
| 2 | Not Connected (n.c.) | No internal connection; must remain unconnected on PCB |
| 3 | Cathode (K) | Reverse-bias terminal; connects to higher-potential node and output reference point |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, humidity, and mechanical stress testing |
| ±2 % Zener voltage tolerance | Tighter than ±5 % (BZX84-C) series, enabling higher-precision voltage references without trimming |
| SOT23 package compatibility | Enables high-density PCB layouts and automated assembly using industry-standard pick-and-place and reflow processes |
| Low leakage at sub-breakdown voltages | IR ≤ 2 µA at VR = 2 V minimizes standby power loss in battery-powered regulation circuits |
Applications
| Automotive Body Control Module (BCM) Voltage Reference | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Providing stable 5.1 V reference for microcontroller ADC inputs and analog sensor biasing in BCMs. IC Role / Device Role / Timing Role: Zener voltage reference diode establishing precision DC reference level. Use Value: Maintains ADC accuracy across −40 °C to +125 °C ambient due to AEC-Q101 qualification and controlled SZ. | Use Scenario: Regulating supply to analog front-end circuitry in 4–20 mA loop-powered pressure transmitters. IC Role / Device Role / Timing Role: Low-power shunt regulator maintaining constant bias voltage for op-amps and signal chains. Use Value: Delivers <2 µA leakage at 2 V and 250 mW dissipation within tight space constraints of loop-powered modules. |
| Consumer Power Adapter Overvoltage Protection | Medical Portable Device Voltage Clamp |
Use Scenario: Clamping secondary-side feedback voltage in flyback adapters to prevent IC damage during transient surges. IC Role / Device Role / Timing Role: Transient voltage suppressor operating in reverse breakdown during overvoltage events. Use Value: Withstands 40 W non-repetitive peak power (100 µs pulse) while holding clamp voltage near 5.1 V. | Use Scenario: Protecting low-noise instrumentation amplifiers in portable ECG monitors from ESD-induced voltage spikes. IC Role / Device Role / Timing Role: ESD-sensitive voltage clamp limiting input node excursion to safe levels. Use Value: Achieves <1.2 mV/K temperature coefficient and 400 Ω rdif to preserve signal integrity without introducing gain drift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5222BS-7-F | ±5 % tolerance, 350 mW Ptot, same SOT23 package but different marking and thermal resistance (Rth(j-a) = 450 K/W) | Higher power rating but looser voltage tolerance; suitable where cost and availability outweigh precision needs | Select when ±5 % VZ variation is acceptable and higher continuous dissipation is required |
| BZX84-C5V1 | ±5 % tolerance (4.8 V–5.4 V), identical package and AEC-Q101 qualification, same 250 mW Ptot | Broader VZ spread reduces reference accuracy but improves yield and cost in non-critical regulation | Choose for cost-sensitive automotive subsystems where tighter tolerance is unnecessary |
Compared with BZX84-B5V1/LF1VL, MMBZ5222BS-7-F offers higher power margin but reduced voltage precision, while BZX84-C5V1 maintains identical form factor and qualification at lower cost and relaxed tolerance-making it ideal for non-critical biasing where ±5 % is sufficient.
Availability
BZX84-B5V1/LF1VL is available at Aetrix Electronics and suitable for automotive body control modules, industrial sensor signal conditioning, consumer power adapter overvoltage protection, and medical portable device voltage clamping requiring stable component supply and AEC-Q101 compliance.
Supply support for BZX84-B5V1/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 is part of NXP's broad portfolio of discrete Zener regulators designed specifically for precision voltage reference and overvoltage protection in space-constrained, thermally demanding environments-including automotive ECUs and industrial sensors.
FAQ
What is the exact Zener voltage range for BZX84-B5V1/LF1VL at 5 mA test current?
The BZX84-B5V1/LF1VL has a guaranteed Zener voltage range of 5.0 V to 5.2 V when tested at IZ = 5 mA and Tj = 25 °C, reflecting its ±2 % tolerance specification. This range is confirmed in Table 8 of the NXP datasheet (Rev. 6, March 2014) and applies strictly to the BZX84-B variant. The BZX84-B5V1/LF1VL does not meet tighter ±1 % (A-series) or wider ±5 % (C-series) tolerances.
Is BZX84-B5V1/LF1VL suitable for automotive applications?
Yes, BZX84-B5V1/LF1VL is AEC-Q101 qualified per Section 8.1 of the NXP datasheet, confirming its suitability for automotive applications including body control modules, lighting systems, and infotainment power rails. Its qualification covers temperature cycling, humidity testing, and mechanical stress validation-ensuring reliability under automotive environmental stresses.
What is the thermal resistance from junction to ambient for BZX84-B5V1/LF1VL?
The thermal resistance from junction to ambient (Rth(j-a)) for BZX84-B5V1/LF1VL is 500 K/W when mounted on a FR4 PCB with single-sided copper, tin-plated, and standard footprint (Table 6, NXP datasheet Rev. 6). This value assumes free-air convection and is used to calculate junction temperature rise under steady-state power dissipation.
Does BZX84-B5V1/LF1VL have a connected third pin?
No, Pin 2 of the BZX84-B5V1/LF1VL is explicitly marked "n.c." (not connected) in Table 2 of the NXP datasheet. It has no internal bond wire or silicon connection and must remain unconnected on the PCB layout to avoid unintended parasitic effects or assembly defects.
What is the maximum non-repetitive peak reverse current for BZX84-B5V1/LF1VL?
The maximum non-repetitive peak reverse current (IZSM) for BZX84-B5V1/LF1VL is 6.0 A, specified for tp ≤ 100 µs square-wave pulses at Tj = 25 °C prior to surge (Table 5 and Table 8, NXP datasheet Rev. 6). This rating supports robust transient overvoltage clamping in power supply protection circuits.
BZX84-B5V1/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):
- 5.1 V
- Tolerance:
- ±2%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 60 Ohms
- Current - Reverse Leakage @ Vr:
- 2 µA @ 2 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-B5V1/LF1VL FAQ
1.How can I place an order for BZX84-B5V1/LF1VL through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84-B5V1/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-B5V1/LF1VL reliable?
The price and inventory of BZX84-B5V1/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-B5V1/LF1VL is usually 5 days.
3.What payment methods are accepted for BZX84-B5V1/LF1VL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84-B5V1/LF1VL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84-B5V1/LF1VL?
BZX84-B5V1/LF1VL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84-B5V1/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-B5V1/LF1VL?
For technical support, including BZX84-B5V1/LF1VL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84-B5V1/LF1VL requirements.
6.How does Aetrix verify that BZX84-B5V1/LF1VL is sourced from the original manufacturer or authorized distributors?
All BZX84-B5V1/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-B5V1/LF1VL meets industry standards.
7.What is the process for return or replacement of BZX84-B5V1/LF1VL?
All BZX84-B5V1/LF1VL units undergo pre-shipment inspection (PSI). If there is an issue with BZX84-B5V1/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-B5V1/LF1VL part is unused and in its original packaging.
Return procedure for BZX84-B5V1/LF1VL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84-B5V1/LF1VL Tags
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