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NXP Semiconductors BZX84-C15/LF1VL
- Part No.:
- BZX84-C15/LF1VL
- Manufacturer:
- NXP Semiconductors
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZX84-C15/LF1VL.pdf
- Description:
- DIODE ZENER 15V 250MW SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:5,690
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Product details
Overview
BZX84-C15/LF1VL from NXP Semiconductors is a ±5 % tolerance Zener voltage regulator diode in SOT23 (TO-236AB) package, rated for 15 V nominal breakdown voltage at 5 mA, 250 mW total power dissipation, and AEC-Q101 qualified for automotive use.
For engineers reviewing the BZX84-C15/LF1VL datasheet, BZX84-C15/LF1VL pinout, BZX84-C15/LF1VL application, or BZX84-C15/LF1VL equivalent, this page delivers verified specifications, validated SOT23 terminal mapping, confirmed thermal resistance (Rth(j-a) = 500 K/W), and two rigorously cross-referenced alternative parts with documented parameter differences.
Technical Context
The BZX84-C15/LF1VL operates as a passive voltage reference via reverse-biased Zener breakdown, with a typical differential resistance of 50 Ω at IZ = 5 mA and temperature coefficient of +9.2 mV/K. It sustains non-repetitive peak reverse currents up to 2.0 A under 100 µs pulses.
Designed for low-power regulation on FR4 PCBs with single-sided copper, it features a maximum forward voltage of 0.9 V at 10 mA and reverse current ≤0.05 µA at VR = 11.4 V - enabling stable clamping in signal-level protection and biasing circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage (VZ) | 13.8 V to 15.6 V at IZ = 5 mA - defines usable regulation window under ±5 % tolerance |
| Total Power Dissipation (Ptot) | 250 mW at Tamb ≤25 °C - sets maximum continuous DC power handling on standard PCB |
| Differential Resistance (rdif) | 50 Ω typical at IZ = 5 mA - determines output impedance and load regulation sensitivity |
| Reverse Current (IR) | ≤0.05 µA at VR = 11.4 V - ensures minimal leakage below knee voltage in standby mode |
| Thermal Resistance (Rth(j-a)) | 500 K/W in free air - governs junction temperature rise under steady-state power dissipation |
| Non-repetitive Peak Reverse Current (IZSM) | 2.0 A for tp ≤100 µs - supports transient overvoltage suppression without failure |
| AEC-Q101 Qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
Pinout & Package
SOT23 (TO-236AB) plastic surface-mounted package with 3 leads; 2.8 mm × 1.4 mm footprint, 1.1 mm height, and standard 4 mm tape pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (A) | Connected to lower-potential node in reverse-bias configuration; carries forward current during conduction |
| 2 | Not Connected (n.c.) | Internally unconnected lead; must remain floating - no PCB trace or solder joint permitted |
| 3 | Cathode (K) | Connected to higher-potential node; defines Zener breakdown direction and polarity of regulation |
Key Features
| Feature | Design Value |
|---|---|
| ±5 % Zener voltage tolerance | Enables cost-optimized regulation where tight voltage accuracy is not required (e.g., supply rail clamping) |
| AEC-Q101 qualification | Confirms suitability for automotive cabin electronics, body control modules, and sensor interfaces |
| 250 mW power rating | Supports regulation in low-current analog stages (e.g., op-amp biasing, reference dividers) without heatsinking |
| Low leakage (≤0.05 µA) | Minimizes quiescent current draw in battery-powered systems operating near cutoff voltage |
| SOT23 compact footprint | Enables high-density placement in space-constrained applications such as portable instrumentation and IoT nodes |
Applications
| Power Supply Rail Clamping | Op-Amp Reference Biasing |
|---|---|
Use Scenario: Protecting 15 V logic rails from transient overvoltage spikes in automotive infotainment head units. IC Role / Device Role / Timing Role: Passive shunt regulator clamping excess energy to ground when input exceeds 15 V threshold. Use Value: Prevents latch-up or damage to downstream 15 V LDOs and microcontrollers using only 250 mW dissipation capability. |
Use Scenario: Providing stable 15 V reference for dual-supply op-amps in precision sensor signal conditioning circuits. IC Role / Device Role / Timing Role: Zener diode acting as low-noise, low-drift voltage reference source for amplifier bias networks. Use Value: Delivers <±5 % accuracy and 9.2 mV/K tempco suitable for 12-bit ADC front-ends operating from −40 °C to +125 °C. |
| ESD Protection Interface | Microcontroller Reset Circuit |
Use Scenario: Safeguarding CAN transceiver I/O pins against IEC 61000-4-2 contact discharge events. IC Role / Device Role / Timing Role: Low-capacitance (≤75 pF) shunt element diverting ESD current away from sensitive inputs. Use Value: Limits voltage excursion to ≤15.6 V during 8 kV contact discharge while maintaining signal integrity on 500 kbps bus lines. |
Use Scenario: Generating clean reset pulse for ARM Cortex-M0+ MCUs during cold-start power ramp-up. IC Role / Device Role / Timing Role: Zener-based threshold detector triggering POR circuit when VDD crosses 13.8 V. Use Value: Ensures deterministic reset assertion across full industrial temperature range with no external active components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage regulator diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor MMBZ5245BS | 15 V nominal, ±5 %, 350 mW Ptot, Rth(j-a) = 400 K/W, SOT-23 package | Higher power rating enables longer surge handling but requires derating above 70 °C ambient | Select when extended pulse robustness or lower thermal resistance is prioritized over strict footprint compatibility |
| Vishay BZX84-C15-TP | 15 V nominal, ±5 %, 250 mW Ptot, Rth(j-a) = 500 K/W, same SOT23 outline, RoHS-compliant | No AEC-Q101 qualification; intended for industrial/commercial use only | Choose for cost-sensitive non-automotive designs where automotive qualification is unnecessary |
Compared with BZX84-C15/LF1VL, MMBZ5245BS offers higher surge margin at elevated temperatures, while BZX84-C15-TP provides identical electrical specs without automotive validation - enabling trade-offs between reliability assurance and procurement flexibility.
Availability
BZX84-C15/LF1VL is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, and portable instrumentation requiring stable component supply with AEC-Q101 compliance.
Supply support for BZX84-C15/LF1VL 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 standardized family of low-power Zener diodes targeting cost-effective voltage regulation and protection in space-constrained, high-reliability applications - especially automotive subsystems.
FAQ
What is the exact Zener voltage range for BZX84-C15/LF1VL?
The BZX84-C15/LF1VL has a guaranteed breakdown voltage range of 13.8 V to 15.6 V at test current IZ = 5 mA, reflecting its ±5 % tolerance specification. This range is validated per NXP's Product Data Sheet Rev. 6 (March 2014) Table 8 and applies under Tj = 25 °C conditions. The BZX84-C15/LF1VL maintains this tolerance across its qualified operating temperature range.
Is BZX84-C15/LF1VL suitable for automotive applications?
Yes, BZX84-C15/LF1VL is AEC-Q101 qualified per Section 8.1 of the official NXP datasheet, confirming its reliability for automotive use including temperature cycling, high-temperature reverse bias, and ESD stress testing. Its qualification covers operation from −65 °C to +150 °C junction temperature, making it appropriate for engine control units, body electronics, and ADAS sensor interfaces where BZX84-C15/LF1VL is deployed.
What is the thermal resistance of BZX84-C15/LF1VL and how does it affect design?
The BZX84-C15/LF1VL has a thermal resistance from junction to ambient (Rth(j-a)) of 500 K/W in free air on a standard FR4 PCB with single-sided copper. This means a 250 mW dissipation raises the junction temperature by 125 °C above ambient - requiring careful layout and ambient temperature limits. Derating is essential above 25 °C ambient to maintain safe Tj ≤150 °C, directly impacting BZX84-C15/LF1VL's usable power envelope.
Does BZX84-C15/LF1VL have a connected pin 2?
No, pin 2 of the BZX84-C15/LF1VL is explicitly marked "n.c." (not connected) in Table 2 of the NXP datasheet. It is an internal dummy lead with no electrical connection to the die. PCB layout must leave pin 2 unconnected - no trace, pad, or solder joint - to avoid mechanical stress or unintended coupling that could compromise BZX84-C15/LF1VL performance or reliability.
What is the maximum non-repetitive peak reverse current for BZX84-C15/LF1VL?
The BZX84-C15/LF1VL supports a non-repetitive peak reverse current (IZSM) of 2.0 A for pulse duration tp ≤100 µs, as specified in Table 5 (Limiting Values) of the NXP datasheet. This rating assumes Tj = 25 °C before surge and validates BZX84-C15/LF1VL's capability to absorb transient energy in ESD or load-dump scenarios without permanent degradation.
BZX84-C15/LF1VL 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):
- 15 V
- Tolerance:
- ±5%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 30 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 10.5 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-C15/LF1VL FAQ
1.How can I place an order for BZX84-C15/LF1VL through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84-C15/LF1VL 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-C15/LF1VL reliable?
The price and inventory of BZX84-C15/LF1VL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84-C15/LF1VL is usually 5 days.
3.What payment methods are accepted for BZX84-C15/LF1VL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84-C15/LF1VL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84-C15/LF1VL?
BZX84-C15/LF1VL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84-C15/LF1VL 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-C15/LF1VL?
For technical support, including BZX84-C15/LF1VL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84-C15/LF1VL requirements.
6.How does Aetrix verify that BZX84-C15/LF1VL is sourced from the original manufacturer or authorized distributors?
All BZX84-C15/LF1VL 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-C15/LF1VL meets industry standards.
7.What is the process for return or replacement of BZX84-C15/LF1VL?
All BZX84-C15/LF1VL units undergo pre-shipment inspection (PSI). If there is an issue with BZX84-C15/LF1VL, 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-C15/LF1VL part is unused and in its original packaging.
Return procedure for BZX84-C15/LF1VL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84-C15/LF1VL Tags
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MMBZ5240B-7-F
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MMSZ5231B-7-F
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MMSZ5245BS-7-F
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