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NXP Semiconductors BZX84-B5V6/LF1R
- Part No.:
- BZX84-B5V6/LF1R
- Manufacturer:
- NXP Semiconductors
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZX84-B5V6/LF1R.pdf
- Description:
- DIODE ZENER 5.6V 250MW SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:8,364
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Product details
Overview
BZX84-B5V6/LF1R from NXP Semiconductors is a ±2 % tolerance Zener diode in SOT23 package, rated for 5.6 V nominal breakdown voltage at 5 mA, 250 mW total power dissipation, and AEC-Q101 qualified for automotive use. It provides stable voltage regulation in low-power supply rails, ESD protection circuits, and reference voltage generation for sensor interfaces.
For engineers reviewing the BZX84-B5V6/LF1R datasheet, BZX84-B5V6/LF1R pinout, BZX84-B5V6/LF1R application, or BZX84-B5V6/LF1R equivalent, key selection criteria include its 5.6 V ±2 % Zener voltage tolerance, 80 Ω typical differential resistance at 5 mA, 1 μA maximum reverse current at 4.2 V, −2.0 to +2.5 mV/K temperature coefficient, and SOT23 footprint compatibility with automated assembly.
Technical Context
This discrete Zener diode operates in reverse-bias breakdown mode to maintain a stable reference voltage across its cathode-anode terminals. Its design supports precision regulation in space-constrained PCB layouts where thermal resistance to ambient (500 K/W) and solder point (330 K/W) are critical for reliability under transient loads.
The device features non-repetitive peak reverse power dissipation up to 40 W for ≤100 μs pulses and is characterized at Tj = 25 °C with verified parameters including 5.49 V minimum and 5.71 V maximum Zener voltage at IZ = 5 mA, 15 μA max reverse current at VR = 4.2 V, and 1.2 pF diode capacitance at 1 MHz and 0 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 5.49 V to 5.71 V at IZ = 5 mA - defines regulated output voltage range under nominal bias |
| Tolerance | ±2 % - ensures tight voltage control for reference-sensitive analog circuits |
| Power Dissipation (Ptot) | 250 mW at Tamb ≤ 25 °C - sets maximum continuous DC power handling on standard FR4 PCB |
| Differential Resistance (rdiff) | 80 Ω typical at IZ = 5 mA - determines regulation stiffness and load-induced voltage drift |
| Reverse Current (IR) | ≤1 μA at VR = 4.2 V - guarantees low leakage in standby or high-impedance sensing nodes |
| Temperature Coefficient (SZ) | −2.0 to +2.5 mV/K - quantifies Zener voltage drift over operating junction temperature range |
| Package | SOT23 (TO-236AB) - 3-pin surface-mount outline with 2.8 mm × 1.4 mm footprint for high-density routing |
Pinout & Package
SOT23 plastic surface-mounted package (TO-236AB), 3-lead, with standard footprint per Figure 8 and reflow/wave soldering land patterns defined in Figures 9–10.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (A) | Forward-biased terminal; connects to lower-potential node in reverse-regulation configuration |
| 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 and serves as regulated output reference |
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 | Enables tighter system-level voltage margining than ±5 % variants without requiring trimming circuitry |
| Low 1.2 pF junction capacitance | Minimizes signal coupling and noise injection in high-frequency analog or RF-adjacent applications |
| Non-repetitive 40 W surge rating | Withstands transient overvoltage events such as ESD or inductive kickback without degradation |
| Standard SOT23 footprint | Ensures drop-in compatibility with existing pick-and-place equipment and reflow profiles |
Applications
| Automotive Sensor Reference | Industrial Power Rail Clamp |
|---|---|
Use Scenario: Providing stable 5.6 V reference for analog front-end of engine coolant temperature sensor in engine control unit. IC Role / Device Role / Timing Role: Zener diode configured as shunt voltage reference, absorbing excess current to hold sensor excitation voltage constant. Use Value: Maintains <±10 mV regulation error over −40 °C to +125 °C ambient, meeting ASIL-B functional safety requirements for sensor accuracy. | Use Scenario: Clamping 5 V logic rail against voltage spikes induced by relay switching in factory automation PLC I/O modules. IC Role / Device Role / Timing Role: Shunt protection device limiting rail voltage excursion to ≤6.2 V during transients. Use Value: Absorbs 40 W non-repetitive surges without failure, preventing latch-up or damage to downstream 5 V microcontrollers. |
| Consumer USB Port Protection | Medical Wearable Battery Monitor |
Use Scenario: ESD suppression and overvoltage clamping on VBUS line of USB 2.0 interface in portable speaker. IC Role / Device Role / Timing Role: Bidirectional transient suppressor leveraging Zener breakdown in reverse and forward conduction in surge events. Use Value: Limits VBUS to <6.2 V during ±8 kV contact discharge (IEC 61000-4-2), preserving USB PHY integrity. | Use Scenario: Precision voltage reference for ADC measuring lithium-ion cell voltage in compact glucose monitor. IC Role / Device Role / Timing Role: Low-leakage (≤1 μA) Zener source establishing 5.6 V reference for 12-bit SAR ADC conversion. Use Value: Enables ±0.5 % full-scale accuracy over battery discharge cycle (3.0–4.2 V input), critical for dose calculation fidelity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5232BS-7-F | Same 5.6 V nominal, ±5 % tolerance, 200 mW Ptot, SOT23 package | Higher voltage tolerance and lower power rating reduce regulation precision in reference designs | Select when cost sensitivity outweighs voltage stability requirements |
| BZX84-C5V6 | Same 5.6 V nominal, ±5 % tolerance, 250 mW Ptot, identical SOT23 pinout | Looser tolerance increases risk of out-of-spec reference voltage in high-accuracy analog stages | Acceptable for non-critical clamping where ±5 % variation is within system margin |
Compared with BZX84-B5V6/LF1R, MMBZ5232BS-7-F offers lower cost but sacrifices both voltage precision and power handling, while BZX84-C5V6 retains full package and power compatibility at the expense of ±5 % tolerance-making it suitable only where tighter regulation is not required.
Availability
BZX84-B5V6/LF1R is available at Aetrix Electronics and suitable for automotive sensor references, industrial power rail clamps, and consumer USB port protection requiring stable component supply and AEC-Q101 compliance.
Supply support for BZX84-B5V6/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 specializing in secure connectivity solutions for automotive, industrial, and IoT applications.
The BZX84 series is part of NXP's broad portfolio of discrete protection and regulation devices, designed specifically for high-reliability, space-constrained applications requiring AEC-Q101 qualification and stable Zener performance across temperature.
FAQ
What is the Zener voltage tolerance of BZX84-B5V6/LF1R?
BZX84-B5V6/LF1R has a ±2 % Zener voltage tolerance, meaning its breakdown voltage is guaranteed between 5.49 V and 5.71 V when tested at 5 mA. This tighter tolerance compared to ±5 % variants like BZX84-C5V6 makes BZX84-B5V6/LF1R suitable for applications demanding higher reference accuracy, such as precision analog sensor interfaces or regulated power supply feedback networks.
Is BZX84-B5V6/LF1R qualified for automotive use?
Yes, BZX84-B5V6/LF1R is AEC-Q101 qualified by NXP Semiconductors, confirming its reliability for automotive applications including under-hood and cabin electronics. The qualification covers stress tests for temperature cycling, humidity, mechanical shock, and high-temperature operating life. BZX84-B5V6/LF1R is therefore appropriate for use in engine control units, body control modules, and ADAS sensor subsystems where long-term stability and failure resilience are mandatory.
What is the maximum reverse current specification for BZX84-B5V6/LF1R?
The maximum reverse current (IR) for BZX84-B5V6/LF1R is 1 μA at VR = 4.2 V, as specified in Table 8 of the NXP datasheet. This low leakage ensures minimal parasitic loading on high-impedance nodes-critical in battery-powered medical wearables or precision voltage reference circuits where even nanoamp-level currents can degrade measurement accuracy or increase quiescent power consumption.
Can BZX84-B5V6/LF1R be used in place of BZX84-C5V6?
BZX84-B5V6/LF1R can functionally replace BZX84-C5V6 in most circuits due to identical SOT23 package, pinout, and 5.6 V nominal Zener voltage-but with improved ±2 % tolerance versus ±5 %. However, BZX84-C5V6 lacks AEC-Q101 qualification and exhibits higher differential resistance (up to 400 Ω), so substitution in automotive or high-precision applications requires validation of system-level voltage margin and thermal performance using BZX84-B5V6/LF1R's tighter specifications.
What is the thermal resistance from junction to ambient for BZX84-B5V6/LF1R?
The thermal resistance from junction to ambient (Rth(j-a)) for BZX84-B5V6/LF1R is 500 K/W under free-air conditions on a standard FR4 PCB with single-sided copper and tin plating, per Table 6 of the NXP datasheet. This value informs derating calculations: at 25 °C ambient, the device reaches its 150 °C maximum junction temperature at just 250 mW, confirming that full-rated power is only sustainable with adequate board-level heat sinking or forced airflow.
BZX84-B5V6/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):
- 5.6 V
- Tolerance:
- ±2%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 40 Ohms
- Current - Reverse Leakage @ Vr:
- 1 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-B5V6/LF1R FAQ
1.How can I place an order for BZX84-B5V6/LF1R through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84-B5V6/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-B5V6/LF1R reliable?
The price and inventory of BZX84-B5V6/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-B5V6/LF1R is usually 5 days.
3.What payment methods are accepted for BZX84-B5V6/LF1R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84-B5V6/LF1R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84-B5V6/LF1R?
BZX84-B5V6/LF1R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84-B5V6/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-B5V6/LF1R?
For technical support, including BZX84-B5V6/LF1R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84-B5V6/LF1R requirements.
6.How does Aetrix verify that BZX84-B5V6/LF1R is sourced from the original manufacturer or authorized distributors?
All BZX84-B5V6/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-B5V6/LF1R meets industry standards.
7.What is the process for return or replacement of BZX84-B5V6/LF1R?
All BZX84-B5V6/LF1R units undergo pre-shipment inspection (PSI). If there is an issue with BZX84-B5V6/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-B5V6/LF1R part is unused and in its original packaging.
Return procedure for BZX84-B5V6/LF1R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84-B5V6/LF1R Tags
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BZT52C5V6T-7
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MMSZ5231B-7-F
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BZX84C3V3LT1G
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MMSZ5245BS-7-F
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MMSZ4682T1G
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BZT52C15S-7-F
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MM5Z5V1ST1G
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