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NXP Semiconductors BZX84-C8V2/LF1R
- Part No.:
- BZX84-C8V2/LF1R
- Manufacturer:
- NXP Semiconductors
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZX84-C8V2/LF1R.pdf
- Description:
- DIODE ZENER 8.2V 250MW SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:9,450
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Product details
Overview
BZX84-C8V2/LF1R from NXP Semiconductors is a ±5 % tolerance Zener voltage regulator diode in SOT23 (TO-236AB) package, rated for 250 mW total power dissipation at 25 °C ambient, with nominal Zener voltage 8.2 V at 5 mA test current and typical differential resistance of 40 Ω. It serves as a precision low-power reference or clamp in power supply feedback paths, overvoltage protection circuits, and analog signal conditioning stages.
For engineers reviewing the BZX84-C8V2/LF1R datasheet, BZX84-C8V2/LF1R pinout, BZX84-C8V2/LF1R application, or BZX84-C8V2/LF1R equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance data, reverse current behavior at 7.5 V, and validated alternative part options for automotive and industrial designs requiring stable 8.2 V regulation.
Technical Context
This device operates as a two-terminal silicon Zener diode optimized for voltage regulation and transient clamping in space-constrained PCB layouts. Its breakdown mechanism is controlled avalanche at 8.2 V, with temperature coefficient of +3.2 mV/K at 5 mA - enabling predictable drift compensation in bias networks.
Designed for surface-mount assembly on FR4 PCBs with single-sided copper, it supports reflow and wave soldering per JEDEC J-STD-020 and J-STD-001. The non-repetitive peak reverse power dissipation is rated at 40 W for ≤100 μs pulses, making it suitable for ESD and surge suppression in low-energy interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 7.7 V to 8.7 V at IZ = 5 mA - defines usable regulation window under ±5 % tolerance band |
| Differential Resistance (rdiff) | 40 Ω typical at IZ = 5 mA - determines output impedance and load regulation error in reference circuits |
| Reverse Current (IR) | ≤0.7 μA at VR = 7.5 V - ensures minimal leakage in high-impedance sensing nodes |
| Forward Voltage (VF) | ≤0.9 V at IF = 10 mA - enables use as low-drop rectifier or polarity protection element |
| Total Power Dissipation (Ptot) | 250 mW at Tamb ≤25 °C - sets maximum continuous DC power handling without derating |
| Thermal Resistance (Rth(j-a)) | 500 K/W in free air - informs junction temperature rise under steady-state operation |
| AEC-Q101 Qualified | Yes - certified for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
Pinout & Package
SOT23 (TO-236AB) plastic surface-mounted package with 3 leads; body dimensions 2.9 mm × 1.3 mm × 1.0 mm; standard footprint per Figure 9 (reflow) and Figure 10 (wave) in datasheet Rev. 6.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (A) | Connected to lower-potential side in reverse-bias regulation; forward conduction path when used as rectifier |
| 2 | Not Connected (n.c.) | Internal die pad with no electrical connection; must remain unconnected on PCB |
| 3 | Cathode (K) | Connected to higher-potential side in reverse-bias mode; provides regulated output node in shunt configuration |
Key Features
| Feature | Design Value |
|---|---|
| ±5 % Zener voltage tolerance | Enables cost-effective selection for non-critical reference applications where tight regulation is not required |
| Low differential resistance (40 Ω typ.) | Minimizes output voltage variation across load current changes in shunt regulator topologies |
| AEC-Q101 qualification | Validates suitability for automotive cabin control modules, body electronics, and infotainment power rails |
| Non-repetitive peak reverse power (40 W) | Supports transient suppression in CAN/LIN bus termination networks and sensor interface protection |
| FR4 PCB thermal performance | Specified Rth(j-sp) = 330 K/W to cathode solder point - enables accurate thermal modeling in layout |
Applications
| Power Supply Feedback | Overvoltage Clamp |
|---|---|
Use Scenario: Stabilizing output voltage of adjustable DC-DC converter via TL431-like feedback loop. IC Role / Device Role / Timing Role: Shunt reference providing precise 8.2 V threshold to comparator input. Use Value: Maintains ±1.5 % output regulation over line/load variations due to low rdiff and stable VZ. |
Use Scenario: Protecting microcontroller GPIO pins from 12 V rail transients in automotive door module. IC Role / Device Role / Timing Role: Clamping device limiting voltage to 8.7 V during load dump events. Use Value: Absorbs 40 W surges for ≤100 μs without failure, preventing latch-up in downstream logic. |
| Signal Level Translation | Temperature-Compensated Bias |
Use Scenario: Converting 0–10 V analog sensor output to 0–3.3 V range for ADC input. IC Role / Device Role / Timing Role: Upper rail clamp establishing 3.3 V ceiling using series resistor and Zener. Use Value: Delivers <0.7 μA leakage at 7.5 V, preserving signal integrity in high-impedance divider networks. |
Use Scenario: Setting bias point for op-amp input stage in engine coolant temperature circuit. IC Role / Device Role / Timing Role: Reference element with +3.2 mV/K tempco matched against transistor VBE drift. Use Value: Enables <±20 ppm/°C effective tempco in compensated current sources up to 125 °C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5231BS-7-F (Diodes Inc.) | 8.2 V ±5 %, 225 mW Ptot, 30 Ω rdiff, SOT23 package | Lower power rating requires 10 % higher series resistor in shunt regulators | Select when tighter rdiff is prioritized over absolute power margin |
| 1SMA5919BT3G (onsemi) | 8.2 V ±5 %, 1.5 W Ptot, 7 Ω rdiff, SMA package (larger footprint) | Higher power handling suits repetitive surge environments but needs PCB area increase | Select for industrial motor drive I/O protection where pulse repetition occurs |
Compared with BZX84-C8V2/LF1R, MMBZ5231BS-7-F offers lower dynamic impedance but reduced thermal margin, while 1SMA5919BT3G provides superior surge capability at the cost of board space - choice depends on whether design priority is precision, compactness, or ruggedness.
Availability
BZX84-C8V2/LF1R is available at Aetrix Electronics and suitable for automotive body control units, industrial sensor interfaces, and consumer power adapter feedback loops requiring stable component supply with AEC-Q101 compliance and SOT23 footprint compatibility.
Supply support for BZX84-C8V2/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 developed as a family of standardized, AEC-Q101-qualified Zener diodes targeting cost-sensitive yet reliability-critical voltage reference and protection functions in automotive ECUs and industrial control systems.
FAQ
What is the Zener voltage tolerance for BZX84-C8V2/LF1R?
The BZX84-C8V2/LF1R has a nominal Zener voltage of 8.2 V with approximately ±5 % tolerance, meaning its actual breakdown voltage falls between 7.7 V and 8.7 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' variant of the BZX84 series.
Is BZX84-C8V2/LF1R qualified for automotive use?
Yes, BZX84-C8V2/LF1R is AEC-Q101 qualified per Section 8.1 of the NXP datasheet. It has passed stress tests including high-temperature reverse bias, temperature cycling, and ESD per ANSI/ESDA-JEDEC JS-001, making it suitable for automotive cabin electronics, lighting control, and body domain controllers.
What is the maximum forward current rating for BZX84-C8V2/LF1R?
The absolute maximum forward current for BZX84-C8V2/LF1R is 200 mA, as specified in Table 5 (Limiting Values) of the NXP datasheet. However, continuous operation above 10 mA is not recommended due to thermal limitations - the device is optimized for reverse-bias regulation, not forward conduction.
How does the temperature coefficient affect BZX84-C8V2/LF1R in precision circuits?
BZX84-C8V2/LF1R exhibits a positive temperature coefficient of +3.2 mV/K at 5 mA, meaning its Zener voltage increases by ~3.2 mV per degree Celsius rise in junction temperature. This characteristic allows designers to compensate for negative tempcos in associated components, such as bipolar transistor base-emitter junctions, in bias networks.
Can BZX84-C8V2/LF1R replace BZX84-B8V2 in an existing design?
No direct replacement is advised without circuit review: BZX84-B8V2 has ±2 % tolerance (7.84–8.16 V), while BZX84-C8V2/LF1R has ±5 % (7.7–8.7 V). The wider tolerance may cause unacceptable regulation error in feedback loops calibrated for tighter specs. Verify stability margins and worst-case voltage drift before substitution.
BZX84-C8V2/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):
- 8.2 V
- Tolerance:
- ±5%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 15 Ohms
- Current - Reverse Leakage @ Vr:
- 700 nA @ 5 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-C8V2/LF1R FAQ
1.How can I place an order for BZX84-C8V2/LF1R through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84-C8V2/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-C8V2/LF1R reliable?
The price and inventory of BZX84-C8V2/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-C8V2/LF1R is usually 5 days.
3.What payment methods are accepted for BZX84-C8V2/LF1R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84-C8V2/LF1R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84-C8V2/LF1R?
BZX84-C8V2/LF1R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84-C8V2/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-C8V2/LF1R?
For technical support, including BZX84-C8V2/LF1R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84-C8V2/LF1R requirements.
6.How does Aetrix verify that BZX84-C8V2/LF1R is sourced from the original manufacturer or authorized distributors?
All BZX84-C8V2/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-C8V2/LF1R meets industry standards.
7.What is the process for return or replacement of BZX84-C8V2/LF1R?
All BZX84-C8V2/LF1R units undergo pre-shipment inspection (PSI). If there is an issue with BZX84-C8V2/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-C8V2/LF1R part is unused and in its original packaging.
Return procedure for BZX84-C8V2/LF1R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84-C8V2/LF1R Tags
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MMBZ5240B-7-F
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BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
Diodes Incorporated
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BZT52C15-7-F
Diodes Incorporated
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BZX84C3V3LT1G
onsemi
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MMSZ5245BS-7-F
Diodes Incorporated
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MMSZ4682T1G
onsemi
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BZT52C15S-7-F
Diodes Incorporated
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MM5Z5V1ST1G
onsemi
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SMAJ4744A-TP
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BZT52C3V6LP-7
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SMAZ12-13-F
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