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NXP Semiconductors BZX84-C6V8/LF1R
- Part No.:
- BZX84-C6V8/LF1R
- Manufacturer:
- NXP Semiconductors
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZX84-C6V8/LF1R.pdf
- Description:
- DIODE ZENER 6.8V 250MW SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:9,476
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Product details
Overview
BZX84-C6V8/LF1R from NXP Semiconductors is a 6.8 V ±5 % tolerance Zener voltage regulator diode in SOT23 (TO-236AB) package, rated for 250 mW total power dissipation at 25 °C ambient, with 6.4 V to 7.2 V breakdown range, 30 Ω typical differential resistance at 5 mA, and AEC-Q101 qualification for automotive use.
For engineers reviewing the BZX84-C6V8/LF1R datasheet, BZX84-C6V8/LF1R pinout, BZX84-C6V8/LF1R application, or BZX84-C6V8/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 product data sheet dated 6 March 2014.
Technical Context
This Zener diode operates in reverse-bias breakdown mode to maintain stable reference voltage under varying load and supply conditions. Its 6.8 V nominal Zener voltage is specified at 5 mA test current, with temperature coefficient of +1.2 mV/K (typical), enabling predictable drift compensation in analog circuits.
The device exhibits 30 Ω typical differential resistance at IZ = 5 mA and supports non-repetitive peak reverse currents up to 6.0 A (100 µs pulse), making it suitable for transient overvoltage clamping and precision DC voltage stabilization in low-power signal conditioning paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 6.4 V to 7.2 V (±5 % tolerance at IZ = 5 mA); defines usable regulation window for 5–10 mA biasing |
| Total Power Dissipation (Ptot) | 250 mW at Tamb ≤ 25 °C; limits continuous DC current to ~36 mA at 6.8 V without derating |
| Differential Resistance (rdif) | 30 Ω typical at IZ = 5 mA; determines output impedance and load regulation error |
| Forward Voltage (VF) | ≤ 0.9 V at IF = 10 mA; ensures low-loss conduction when used bidirectionally or in series protection |
| Non-repetitive Peak Reverse Current (IZSM) | 6.0 A (tp = 100 µs); enables short-duration surge suppression in ESD-critical interfaces |
| Temperature Coefficient (SZ) | +1.2 mV/K typical at IZ = 5 mA; allows predictable thermal drift modeling in voltage references |
| AEC-Q101 Qualified | Validated for automotive applications per Stress Test Qualification for Discrete Semiconductors |
Pinout & Package
SOT23 (TO-236AB) plastic surface-mounted package with 3 leads; 2.8 mm × 1.4 mm footprint, 1.1 mm height, standard 4 mm tape pitch reel packaging.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Anode) | Anode connection | Connected to lower-potential node in reverse-bias regulation; carries forward current during polarity reversal |
| 2 (n.c.) | Not connected | Internally unconnected lead; must remain floating - no PCB trace or solder joint required |
| 3 (Cathode) | Cathode connection | Connected to higher-potential node; serves as voltage reference output point in shunt regulator configuration |
Key Features
| Feature | Design Value |
|---|---|
| ±5 % Zener tolerance | Enables cost-optimized voltage reference selection where tight regulation is not required |
| AEC-Q101 qualification | Confirms reliability for under-hood automotive modules including body control units and sensor interfaces |
| 250 mW power rating | Supports stable operation in space-constrained consumer and industrial PCBs without heatsinking |
| 30 Ω differential resistance | Delivers <1 % load regulation error across 1–10 mA current range in precision bias networks |
| SOT23 package compatibility | Ensures drop-in replacement capability with industry-standard pick-and-place and reflow processes |
Applications
| Automotive Sensor Biasing | Industrial Analog Signal Conditioning |
|---|---|
Use Scenario: Providing stable 6.8 V reference for Hall-effect position sensors in engine control modules. IC Role / Device Role / Timing Role: Shunt voltage regulator establishing fixed bias point for sensor Wheatstone bridge excitation. Use Value: Maintains sensor accuracy within ±2 % over −40 °C to +125 °C ambient due to AEC-Q101 validation and known SZ drift. |
Use Scenario: Clamping ADC input voltage to prevent overrange saturation in programmable logic controller analog inputs. IC Role / Device Role / Timing Role: Overvoltage protection element limiting signal swing to 6.8 V before op-amp buffer stage. Use Value: Limits transient-induced ADC errors using 6.0 A non-repetitive peak current handling at 100 µs pulse width. |
| Consumer Power Supply Feedback | IoT Node Voltage Reference |
Use Scenario: Setting feedback threshold in low-cost flyback converter for USB-powered smart home hubs. IC Role / Device Role / Timing Role: Zener-based optocoupler bias source regulating secondary-side output voltage sensing. Use Value: Enables ±5 % output regulation compliance with 250 mW dissipation limit and 30 Ω rdif stability. |
Use Scenario: Generating precise 6.8 V reference for ultra-low-power microcontroller brown-out detection circuitry. IC Role / Device Role / Timing Role: Standby-mode voltage monitor ensuring reset assertion below safe operating voltage. Use Value: Delivers reliable trip point with <10 µA reverse leakage at VR = 5.0 V, minimizing quiescent current drain. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5235BS-7-F (Diodes Inc.) | 6.8 V ±5 %, 350 mW Ptot, SOT23 package, 10 µA IR @ VR = 5 V | Higher power rating allows greater current margin but larger thermal footprint | Select when >250 mW continuous dissipation is required; verify layout clearance for 350 mW derating |
| BZX84-C6V8-7-F (Diodes Inc.) | Identical 6.8 V ±5 %, 250 mW, SOT23, AEC-Q101 qualified; same marking code Z5* | No functional difference - direct second-source alternative with identical parametric performance | Preferred for dual-sourcing strategies requiring identical electrical behavior and automotive qualification |
Compared with MMBZ5235BS-7-F, BZX84-C6V8/LF1R offers tighter thermal resistance control (Rth(j-a) = 500 K/W max) and lower differential resistance (30 Ω vs. 35 Ω), while BZX84-C6V8-7-F provides identical specification compliance with alternate logistics chain support.
Availability
BZX84-C6V8/LF1R is available at Aetrix Electronics and suitable for automotive sensor biasing, industrial analog signal conditioning, and consumer power supply feedback requiring stable component supply with AEC-Q101 assurance.
Supply support for BZX84-C6V8/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 was designed as a high-volume, AEC-Q101-qualified family of low-power Zener diodes targeting cost-sensitive yet reliability-critical voltage regulation in automotive ECUs and industrial control systems.
FAQ
What is the Zener voltage tolerance for BZX84-C6V8/LF1R?
The BZX84-C6V8/LF1R has a nominal Zener voltage of 6.8 V with approximately ±5 % tolerance, meaning its actual breakdown voltage falls between 6.4 V and 7.2 V when tested at 5 mA. This tolerance band is defined in Table 8 of the NXP datasheet Rev. 6 and applies specifically to the "C" grade variant of the BZX84 series.
Is BZX84-C6V8/LF1R suitable for automotive applications?
Yes, BZX84-C6V8/LF1R is AEC-Q101 qualified per Section 8.1 of the NXP datasheet, confirming its suitability for automotive applications including engine control units, body electronics, and sensor interfaces. It meets stress test requirements for temperature cycling, humidity, and mechanical shock specific to discrete semiconductors.
What is the maximum continuous power dissipation for BZX84-C6V8/LF1R?
BZX84-C6V8/LF1R has a maximum total power dissipation (Ptot) of 250 mW at ambient temperatures ≤25 °C, as stated in Table 1 and Table 5 of the datasheet. Derating is required above 25 °C - Rth(j-a) is 500 K/W max, so power must be reduced by 0.5 mW per °C rise above 25 °C to avoid exceeding 150 °C junction temperature.
How is the SOT23 pinout configured for BZX84-C6V8/LF1R?
The BZX84-C6V8/LF1R uses standard SOT23 pinout: Pin 1 is Anode (A), Pin 2 is not connected (n.c.), and Pin 3 is Cathode (K). This configuration is explicitly shown in Table 2 ("Pinning") and the simplified outline graphic in the NXP datasheet Rev. 6, and must be respected in PCB layout to ensure correct reverse-bias operation.
What is the differential resistance of BZX84-C6V8/LF1R at 5 mA?
The typical differential resistance (rdif) of BZX84-C6V8/LF1R is 30 Ω at IZ = 5 mA, with a maximum of 80 Ω, as specified in Table 8 of the NXP datasheet. This value directly impacts regulation accuracy - lower rdif yields better line and load regulation in shunt reference designs using BZX84-C6V8/LF1R.
BZX84-C6V8/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):
- 6.8 V
- Tolerance:
- ±5%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 15 Ohms
- Current - Reverse Leakage @ Vr:
- 2 µA @ 4 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-C6V8/LF1R FAQ
1.How can I place an order for BZX84-C6V8/LF1R through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84-C6V8/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-C6V8/LF1R reliable?
The price and inventory of BZX84-C6V8/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-C6V8/LF1R is usually 5 days.
3.What payment methods are accepted for BZX84-C6V8/LF1R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84-C6V8/LF1R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84-C6V8/LF1R?
BZX84-C6V8/LF1R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84-C6V8/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-C6V8/LF1R?
For technical support, including BZX84-C6V8/LF1R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84-C6V8/LF1R requirements.
6.How does Aetrix verify that BZX84-C6V8/LF1R is sourced from the original manufacturer or authorized distributors?
All BZX84-C6V8/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-C6V8/LF1R meets industry standards.
7.What is the process for return or replacement of BZX84-C6V8/LF1R?
All BZX84-C6V8/LF1R units undergo pre-shipment inspection (PSI). If there is an issue with BZX84-C6V8/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-C6V8/LF1R part is unused and in its original packaging.
Return procedure for BZX84-C6V8/LF1R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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