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NXP Semiconductors BZX84-C16/LF1R
- Part No.:
- BZX84-C16/LF1R
- Manufacturer:
- NXP Semiconductors
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZX84-C16/LF1R.pdf
- Description:
- DIODE ZENER 16V 250MW SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:7,938
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Product details
Overview
BZX84-C16/LF1R from NXP Semiconductors is a ±5 % tolerance Zener voltage regulator diode in SOT23 (TO-236AB) package, rated for 16 V nominal breakdown voltage at 5 mA, 250 mW total power dissipation, and AEC-Q101 qualified for automotive use.
For engineers reviewing the BZX84-C16/LF1R datasheet, BZX84-C16/LF1R pinout, BZX84-C16/LF1R application, or BZX84-C16/LF1R equivalent, key selection factors include its 16 V Zener voltage tolerance (±5 %), low differential resistance (≤75 Ω at IZ = 5 mA), reverse current ≤0.05 μA at VR = 13.6 V, thermal resistance of 500 K/W (junction-to-ambient), and suitability for precision voltage reference and overvoltage protection in space-constrained PCBs.
Technical Context
This discrete Zener diode operates in reverse-bias breakdown mode to maintain stable voltage across load circuits. It delivers regulated output with specified Zener voltage (VZ = 15.3–17.1 V), temperature coefficient (SZ = +10.4 to +14.0 mV/K), and low dynamic impedance (rdif ≤75 Ω).
Designed for surface-mount implementation on FR4 PCBs with single-sided copper, it supports non-repetitive peak reverse power dissipation up to 40 W (tp ≤100 μs) and continuous operation up to 150 °C ambient temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 15.3 V to 17.1 V at IZ = 5 mA - defines regulation window for 16 V nominal reference |
| Tolerance | ±5 % - specifies maximum deviation from nominal 16 V under standard test conditions |
| Differential Resistance (rdif) | ≤75 Ω at IZ = 5 mA - determines output impedance and regulation stability under load variation |
| Reverse Current (IR) | ≤0.05 μA at VR = 13.6 V - ensures minimal leakage below breakdown threshold |
| 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 | 40 W (tp ≤100 μs) - enables transient surge suppression without device failure |
| Thermal Resistance (Rth(j-a)) | 500 K/W - quantifies junction-to-ambient heat transfer efficiency in free air |
Pinout & Package
Package: SOT23 (TO-236AB), plastic surface-mounted package with 3 leads; dimensions 2.9 × 1.3 × 1.0 mm (L × W × H); standard footprint per Fig 9 (reflow) and Fig 10 (wave soldering).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Anode) | Anode connection | Forward-biased terminal; connects to lower-potential side in Zener regulation configuration |
| 2 (n.c.) | Not connected | No internal bond; must remain unconnected on PCB to avoid parasitic coupling or shorting |
| 3 (Cathode) | Cathode connection | Reverse-biased terminal; connects to higher-potential side and serves as voltage reference output node |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, humidity bias, and ESD robustness |
| ±5 % Zener voltage tolerance | Enables cost-effective voltage clamping where tight regulation is not required, e.g., supply rail monitoring |
| Low leakage current | IR ≤0.05 μA at VR = 13.6 V minimizes standby power loss in battery-powered systems |
| SOT23 package compatibility | Standard 4 mm pitch tape-and-reel (3000/10000 pcs) supports high-speed automated assembly |
| 150 °C maximum junction temperature | Supports operation in under-hood automotive environments and industrial control enclosures |
Applications
| Automotive Body Control Module (BCM) | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Voltage clamping on LIN bus transceiver supply rail to prevent overvoltage damage during load dump events. IC Role / Device Role / Timing Role: Zener-based shunt regulator providing passive overvoltage protection upstream of the transceiver IC. Use Value: Limits rail voltage to ≤17.1 V during 40 W transient surges, protecting downstream 5 V LDO and microcontroller I/O pins. |
Use Scenario: Reference voltage generation for 12-bit ADC in a 4–20 mA loop-powered pressure sensor transmitter. IC Role / Device Role / Timing Role: Precision Zener element establishing stable 16 V reference for DAC-controlled current source calibration. Use Value: Delivers <0.05 μA leakage and +12.4 mV/K tempco, enabling <0.1 % full-scale error over –40 to +125 °C operating range. |
| Consumer Power Adapter Feedback | Telecom Line Interface Protection |
Use Scenario: Secondary-side voltage sensing in flyback converter feedback network for constant-voltage output regulation. IC Role / Device Role / Timing Role: Zener diode in optocoupler feedback path, setting reference point for TL431-like regulation. Use Value: 75 Ω differential resistance ensures stable feedback loop gain; ±5 % tolerance aligns with Class II adapter accuracy requirements. |
Use Scenario: Overvoltage protection on analog line interface circuitry exposed to lightning-induced surges on PSTN lines. IC Role / Device Role / Timing Role: Primary-stage clamp limiting input voltage to protected amplifier stage during fast transients. Use Value: Withstands 40 W non-repetitive pulses (100 μs), suppressing >100 V spikes before TVS activation, extending system MTBF. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor MMBZ5245BS | 16 V nominal, ±5 %, SOT23, but rated Ptot = 300 mW and rdif = 20 Ω typical (vs. 75 Ω max for BZX84-C16/LF1R) | Higher power margin and lower impedance suit higher-current regulation; less suitable for ultra-low-leakage designs | Select when tighter regulation stability or higher surge margin is required, accepting slightly higher cost and different marking code |
| Vishay BZX84-C16-TP | Identical 16 V ±5 % spec, same SOT23 package, but AEC-Q101 not explicitly stated; IR = 0.1 μA max at VR = 13.6 V (vs. 0.05 μA for BZX84-C16/LF1R) | Marginally higher leakage may impact battery-life-critical applications; lacks documented automotive qualification | Acceptable for industrial or consumer use where AEC-Q101 is not mandated and leakage <0.1 μA is sufficient |
Compared with MMBZ5245BS and BZX84-C16-TP, BZX84-C16/LF1R provides verified AEC-Q101 compliance and lowest leakage among the three, making it optimal for automotive and long-life battery-powered systems where reliability and standby current are critical.
Availability
BZX84-C16/LF1R is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor signal chains, and telecom line interface protection requiring stable component supply and traceable sourcing.
Supply support for BZX84-C16/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 markets.
The BZX84 series belongs to NXP's broad portfolio of discrete protection and regulation devices, designed specifically for cost-sensitive, space-constrained applications requiring reliable voltage reference and transient suppression in harsh environments.
FAQ
What is the Zener voltage tolerance of BZX84-C16/LF1R?
The BZX84-C16/LF1R has a nominal Zener voltage of 16 V with a tolerance of approximately ±5 %, meaning its actual breakdown voltage falls between 15.3 V and 17.1 V when tested at 5 mA. This tolerance band is defined per the BZX84-C series specification and confirmed in Table 8 of the NXP datasheet Rev. 6.
Is BZX84-C16/LF1R qualified for automotive applications?
Yes, BZX84-C16/LF1R is AEC-Q101 qualified, as explicitly stated in Section 8.1 of the NXP datasheet. This qualification covers stress tests including temperature cycling, high-temperature reverse bias, and ESD, confirming suitability for automotive body electronics and under-hood modules.
What is the maximum continuous power dissipation for BZX84-C16/LF1R?
BZX84-C16/LF1R has a total power dissipation rating of 250 mW at ambient temperatures ≤25 °C when mounted on a standard FR4 PCB with single-sided copper. Derating is required above 25 °C per the thermal resistance value of 500 K/W.
How does the pin configuration of BZX84-C16/LF1R affect PCB layout?
BZX84-C16/LF1R uses a 3-pin SOT23 package with Pin 1 = Anode, Pin 2 = Not Connected, Pin 3 = Cathode. Pin 2 must remain unconnected on the PCB; routing traces to it risks parasitic coupling or unintended shorts. The cathode (Pin 3) is the regulated output node and should be routed with minimal trace length for noise-sensitive applications.
What is the reverse leakage current specification for BZX84-C16/LF1R?
At VR = 13.6 V (85 % of nominal VZ), the reverse current IR for BZX84-C16/LF1R is guaranteed ≤0.05 μA. This low leakage supports energy-efficient designs such as battery-backed sensors and always-on monitoring circuits where standby current must be minimized.
BZX84-C16/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):
- 16 V
- Tolerance:
- ±5%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 40 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 11.2 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-C16/LF1R FAQ
1.How can I place an order for BZX84-C16/LF1R through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84-C16/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-C16/LF1R reliable?
The price and inventory of BZX84-C16/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-C16/LF1R is usually 5 days.
3.What payment methods are accepted for BZX84-C16/LF1R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84-C16/LF1R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84-C16/LF1R?
BZX84-C16/LF1R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84-C16/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-C16/LF1R?
For technical support, including BZX84-C16/LF1R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84-C16/LF1R requirements.
6.How does Aetrix verify that BZX84-C16/LF1R is sourced from the original manufacturer or authorized distributors?
All BZX84-C16/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-C16/LF1R meets industry standards.
7.What is the process for return or replacement of BZX84-C16/LF1R?
All BZX84-C16/LF1R units undergo pre-shipment inspection (PSI). If there is an issue with BZX84-C16/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-C16/LF1R part is unused and in its original packaging.
Return procedure for BZX84-C16/LF1R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84-C16/LF1R Tags
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