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NXP Semiconductors BZX84-C10/LF1R
- Part No.:
- BZX84-C10/LF1R
- Manufacturer:
- NXP Semiconductors
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZX84-C10/LF1R.pdf
- Description:
- DIODE ZENER 10V 250MW SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:2,089
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Product details
Overview
BZX84-C10/LF1R from NXP Semiconductors is a ±5 % tolerance Zener voltage regulator diode in SOT23 (TO-236AB) package, rated for 10 V nominal breakdown voltage at 5 mA, 250 mW total power dissipation, and AEC-Q101 qualified for automotive use.
For engineers reviewing the BZX84-C10/LF1R datasheet, BZX84-C10/LF1R pinout, BZX84-C10/LF1R application, or BZX84-C10/LF1R equivalent, this page delivers verified electrical specs, thermal limits, reverse current behavior at 9.4–10.6 V, differential resistance (~50 Ω), and design implications of its ±5 % tolerance and 4.5 mV/K temperature coefficient.
Technical Context
The BZX84-C10/LF1R operates as a passive voltage reference in shunt regulation topologies, maintaining stable output by conducting reverse current above its 10 V Zener threshold. Its 50 Ω typical differential resistance ensures predictable voltage deviation under load variation.
Designed for ambient temperatures up to +150 °C and junction temperatures up to +150 °C, it supports automotive-grade reliability with non-repetitive peak reverse power dissipation of 40 W (100 µs pulse) and thermal resistance from junction to ambient of 500 K/W on FR4 PCB.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 9.4 V to 10.6 V at IZ = 5 mA - defines usable regulation window under nominal bias |
| Tolerance | ±5 % - impacts precision of voltage clamping in overvoltage protection circuits |
| Differential Resistance (rdiff) | 50 Ω typical at IZ = 5 mA - determines output impedance and load regulation error |
| Max Power Dissipation (Ptot) | 250 mW at Tamb ≤ 25 °C - sets upper limit for continuous DC power handling |
| Reverse Current (IR) | ≤ 0.2 µA at VR = 7.6 V - specifies leakage level below knee voltage, critical for low-power standby |
| Temperature Coefficient (SZ) | +4.5 mV/K typical - quantifies VZ drift per degree Celsius, essential for thermal stability analysis |
| Non-repetitive Peak Reverse Current (IZSM) | 3.0 A at tp = 100 µs - defines surge capability for transient suppression applications |
Pinout & Package
SOT23 (TO-236AB) plastic surface-mounted package with 3 leads; 2.8 mm × 1.4 mm footprint; 1.1 mm height; tin-plated terminations.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Anode) | Anode connection | Connected to lower-potential node in shunt configuration; reverse-biased during regulation |
| 2 (n.c.) | Not connected | No internal bond; must remain unconnected on PCB to avoid parasitic coupling or shorting |
| 3 (Cathode) | Cathode connection | Connected to regulated voltage rail; carries full reverse current during Zener operation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive underhood and infotainment systems requiring high-reliability discrete components |
| ±5 % Zener tolerance | Enables cost-optimized voltage clamping where tight regulation is not required, e.g., input-stage overvoltage limiting |
| 250 mW power rating | Supports continuous regulation in low-current signal conditioning and bias networks without heatsinking |
| Low leakage (≤0.2 µA @ 7.6 V) | Minimizes quiescent current draw in battery-powered sensor interfaces and always-on monitoring circuits |
| 40 W non-repetitive surge rating | Provides robust ESD and transient immunity per IEC 61000-4-2 Level 4 when used with series current-limiting resistor |
Applications
| Automotive Body Control Module (BCM) | Industrial Sensor Signal Conditioning |
|---|---|
|
Use Scenario: Regulating 10 V reference for microcontroller ADC inputs in door module electronics exposed to 12 V battery fluctuations. IC Role / Device Role / Timing Role: Shunt voltage reference providing stable bias point independent of supply ripple. Use Value: Maintains <1 % ADC gain error across -40 °C to +125 °C due to known +4.5 mV/K coefficient and AEC-Q101 thermal validation. |
Use Scenario: Clamping analog output of a 4–20 mA transmitter to prevent damage from induced transients on long cable runs. IC Role / Device Role / Timing Role: Passive overvoltage protector absorbing surge energy before downstream op-amp input stage. Use Value: Limits excursion to ≤10.6 V with 3.0 A peak current capability, enabling use of 12 V-rated op-amps without additional TVS. |
| Consumer Power Adapter Feedback | Medical Low-Power Monitoring Circuit |
|
Use Scenario: Providing feedback voltage to optocoupler in isolated flyback converter secondary-side regulation loop. IC Role / Device Role / Timing Role: Precision shunt reference setting output voltage via resistive divider ratio. Use Value: ±5 % tolerance allows simplified resistor selection while meeting Class II safety isolation requirements without trimming. |
Use Scenario: Biasing photodiode amplifier in portable pulse oximeter where ultra-low standby current is mandatory. IC Role / Device Role / Timing Role: Low-leakage voltage clamp preventing amplifier saturation during dark-current measurement phase. Use Value: ≤0.2 µA reverse current at 7.6 V preserves battery life over multi-week wearable operation cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5240BLT1G | 10 V, ±5 %, 225 mW, SOT23, 70 Ω rdiff, +5.2 mV/K SZ | Higher differential resistance and steeper tempco reduce regulation accuracy in wide-temperature designs | Select when legacy ON Semiconductor footprint compatibility is required and thermal drift is mitigated externally |
| BZX84-C10-7-F | 10 V, ±5 %, 300 mW, SOT23, 50 Ω rdiff, +4.5 mV/K SZ, RoHS-compliant but not AEC-Q101 qualified | Lacks automotive qualification; higher Ptot enables marginally higher continuous current | Prefer for industrial or consumer applications where AEC-Q101 is unnecessary and 300 mW headroom improves reliability at elevated ambient |
Compared with MMBZ5240BLT1G, BZX84-C10/LF1R offers tighter thermal stability and lower impedance; compared with BZX84-C10-7-F, it trades 50 mW power margin for certified automotive suitability-critical for BCM or ADAS subsystems.
Availability
BZX84-C10/LF1R is available at Aetrix Electronics and suitable for automotive body control modules, industrial sensor interfaces, consumer power adapter feedback loops, and medical low-power monitoring circuits requiring stable component supply and long-term lifecycle support.
Supply support for BZX84-C10/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 cost-effective, AEC-Q101 qualified family of Zener diodes targeting voltage regulation and overvoltage protection in space-constrained automotive and industrial PCBs.
FAQ
What is the Zener voltage tolerance of BZX84-C10/LF1R?
The BZX84-C10/LF1R has a nominal Zener voltage of 10 V with a guaranteed tolerance of ±5 %, meaning its actual breakdown voltage falls between 9.4 V and 10.6 V when tested at 5 mA reverse current. This tolerance is defined per the BZX84-C series specification and confirmed in Table 8 of the NXP datasheet Rev. 6.
Is BZX84-C10/LF1R suitable for automotive applications?
Yes, BZX84-C10/LF1R is AEC-Q101 qualified per Section 8.1 of the NXP datasheet, making it suitable for automotive applications including body control modules, infotainment power rails, and sensor interface protection. Its qualification covers temperature cycling, humidity testing, and mechanical shock per the AEC standard.
What is the maximum continuous power dissipation for BZX84-C10/LF1R?
The BZX84-C10/LF1R has a maximum total power dissipation (Ptot) of 250 mW at ambient temperatures ≤25 °C, as specified in Table 5 (Limiting Values) and Table 1 (Quick Reference Data). Derating is required above 25 °C per the thermal resistance Rth(j-a) = 500 K/W.
How does the temperature coefficient affect BZX84-C10/LF1R performance?
The BZX84-C10/LF1R exhibits a typical temperature coefficient (SZ) of +4.5 mV/K, meaning its Zener voltage increases by ~4.5 mV per degree Celsius rise in junction temperature. This behavior is documented in Table 8 and Figure 3 of the datasheet, and must be accounted for in precision reference designs operating across wide temperature ranges.
What is the reverse leakage current of BZX84-C10/LF1R at 7.6 V?
At VR = 7.6 V and Tj = 25 °C, the BZX84-C10/LF1R guarantees a maximum reverse current (IR) of 0.2 µA, as stated in Table 8 under "Reverse current IR (µA)" for the C10 variant. This low leakage supports energy-efficient operation in battery-backed or always-on circuits.
BZX84-C10/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):
- 10 V
- Tolerance:
- ±5%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 20 Ohms
- Current - Reverse Leakage @ Vr:
- 200 nA @ 7 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-C10/LF1R FAQ
1.How can I place an order for BZX84-C10/LF1R through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84-C10/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-C10/LF1R reliable?
The price and inventory of BZX84-C10/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-C10/LF1R is usually 5 days.
3.What payment methods are accepted for BZX84-C10/LF1R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84-C10/LF1R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84-C10/LF1R?
BZX84-C10/LF1R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84-C10/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-C10/LF1R?
For technical support, including BZX84-C10/LF1R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84-C10/LF1R requirements.
6.How does Aetrix verify that BZX84-C10/LF1R is sourced from the original manufacturer or authorized distributors?
All BZX84-C10/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-C10/LF1R meets industry standards.
7.What is the process for return or replacement of BZX84-C10/LF1R?
All BZX84-C10/LF1R units undergo pre-shipment inspection (PSI). If there is an issue with BZX84-C10/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-C10/LF1R part is unused and in its original packaging.
Return procedure for BZX84-C10/LF1R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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