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NXP Semiconductors BZX84-C22/LF1VL
- Part No.:
- BZX84-C22/LF1VL
- Manufacturer:
- NXP Semiconductors
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZX84-C22/LF1VL.pdf
- Description:
- DIODE ZENER 22V 250MW SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:6,315
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Product details
Overview
BZX84-C22/LF1VL from NXP Semiconductors is a ±5 % tolerance Zener voltage regulator diode in SOT23 (TO-236AB) package, rated for 22 V nominal breakdown voltage at 5 mA, 250 mW total power dissipation, and AEC-Q101 qualified for automotive use.
For engineers reviewing the BZX84-C22/LF1VL datasheet, BZX84-C22/LF1VL pinout, BZX84-C22/LF1VL application, or BZX84-C22/LF1VL equivalent, this page delivers verified specifications, validated pin functions, confirmed automotive-grade reliability, and real-world regulation use cases - all aligned to NXP's Rev. 6 product data sheet dated 6 March 2014.
Technical Context
This discrete Zener diode operates in reverse-bias breakdown mode to maintain stable reference voltage under varying load and temperature conditions. Its 22 V nominal Zener voltage is specified at IZ = 5 mA with ±5 % tolerance, differential resistance of 60 Ω (typ), and temperature coefficient of +16.4 mV/K (typ).
Designed for low-power regulation, it supports non-repetitive peak reverse current up to 1.25 A (tp = 100 µs), exhibits 0.05 µA max reverse current at VR = 17.6 V, and features thermal resistance from junction to ambient of 500 K/W on FR4 PCB.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 22 V nominal at IZ = 5 mA; actual range 20.8 V to 23.3 V per ±5 % tolerance |
| Power Dissipation (Ptot) | 250 mW maximum at Tamb ≤ 25 °C; derates linearly above 25 °C |
| Differential Resistance (rdiff) | 60 Ω typical at IZ = 5 mA; determines output impedance and regulation stiffness |
| Reverse Current (IR) | ≤0.05 µA at VR = 17.6 V; ensures minimal leakage in standby regulation |
| Temperature Coefficient (SZ) | +16.4 mV/K typical; positive drift enables compensation in multi-diode references |
| Forward Voltage (VF) | ≤0.9 V at IF = 10 mA; defines conduction threshold in forward bias |
| Non-repetitive Peak Current (IZSM) | 1.25 A for tp ≤ 100 µs; supports transient overvoltage clamping |
Pinout & Package
SOT23 (TO-236AB) plastic surface-mounted package with 3 leads; 2.8 mm × 1.4 mm footprint; 0.95 mm height; tin-plated terminations.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (A) | Connected to lower-potential side in reverse-bias regulation; forward current entry point |
| 2 | Not Connected (n.c.) | Internally unconnected; no electrical function; must remain floating on PCB |
| 3 | Cathode (K) | Connected to higher-potential side in reverse-bias; Zener breakdown occurs between K and A |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control, body electronics, and infotainment power rails |
| ±5 % Zener tolerance (C-series) | Cost-optimized precision for non-critical voltage references where tight regulation is not required |
| 250 mW power rating in SOT23 | Enables compact board layout while supporting up to ~11 mA continuous Zener current at 22 V |
| Low leakage (0.05 µA @ 17.6 V) | Minimizes quiescent current draw in battery-powered or always-on circuits |
| Positive temperature coefficient (+16.4 mV/K) | Allows series stacking with negative-coefficient diodes to achieve near-zero TC voltage references |
Applications
| Automotive ECU Power Rail Clamp | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Clamping 24 V supply transients in engine control unit power distribution networks. IC Role / Device Role / Timing Role: Zener diode operating in reverse breakdown to limit voltage spikes to ≤23.3 V. Use Value: Prevents damage to downstream 24 V-rated microcontrollers and CAN transceivers during load dump events. |
Use Scenario: Providing stable 22 V reference for analog front-end amplifiers in pressure sensor modules. IC Role / Device Role / Timing Role: Passive voltage reference source for op-amp biasing and ADC reference scaling. Use Value: Enables consistent 12-bit measurement accuracy across –40 °C to +125 °C ambient range. |
| Consumer Power Supply Feedback | IoT Node Battery Protection |
Use Scenario: Secondary-side voltage sensing in isolated flyback converters for USB-C PD adapters. IC Role / Device Role / Timing Role: Zener element in optocoupler feedback loop to regulate 22 V auxiliary rail. Use Value: Maintains ±5 % output regulation without requiring dedicated voltage reference IC. |
Use Scenario: Overvoltage detection in lithium-thionyl chloride primary battery monitoring circuits. IC Role / Device Role / Timing Role: Reverse-biased clamp triggering cutoff FET when cell voltage exceeds 23.3 V. Use Value: Extends battery service life by preventing electrolyte decomposition above safe voltage threshold. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor MMBZ5247BS-7-F | 22 V, ±5 %, SOT23, 225 mW Ptot, rdiff = 33 Ω (typ), IR = 0.1 µA @ 17.6 V | Lower dynamic impedance improves regulation under variable load; slightly reduced power rating | Select when tighter load regulation is needed and 25 mW margin is acceptable. |
| Vishay BZX84-C22-TP | 22 V, ±5 %, SOT23, 300 mW Ptot, rdiff = 65 Ω (typ), IR = 0.05 µA @ 17.6 V, AEC-Q101 qualified | Higher power rating allows greater surge handling; identical leakage and tolerance; same automotive qualification | Choose for designs requiring extended thermal margin or higher single-pulse energy absorption. |
Compared with BZX84-C22/LF1VL, MMBZ5247BS-7-F offers better regulation stiffness but less thermal headroom, while BZX84-C22-TP provides higher power capability with identical tolerance and leakage - making it a drop-in upgrade for thermally constrained layouts.
Availability
BZX84-C22/LF1VL is available at Aetrix Electronics and suitable for automotive ECU protection, industrial sensor reference, and consumer power supply feedback requiring stable component supply and AEC-Q101 compliance.
Supply support for BZX84-C22/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 is part of NXP's broad portfolio of discrete protection and regulation devices, engineered specifically for cost-sensitive, space-constrained applications demanding automotive-grade reliability and standardized SMT compatibility.
FAQ
What is the Zener voltage tolerance of BZX84-C22/LF1VL?
The BZX84-C22/LF1VL has a nominal Zener voltage of 22 V with approximately ±5 % tolerance, meaning its actual breakdown voltage falls between 20.8 V and 23.3 V when measured at 5 mA test current, as confirmed in Table 8 of the NXP datasheet Rev. 6.
Is BZX84-C22/LF1VL qualified for automotive use?
Yes, BZX84-C22/LF1VL is AEC-Q101 qualified per Section 8.1 of the NXP product data sheet, confirming its suitability for automotive applications including engine control units, body electronics, and infotainment systems where reliability under temperature cycling and vibration is critical.
What is the maximum continuous power dissipation for BZX84-C22/LF1VL?
BZX84-C22/LF1VL has a maximum total power dissipation of 250 mW at ambient temperatures ≤25 °C, as stated in Table 1 (Quick reference data) and Table 5 (Limiting values); derating is required above 25 °C per the thermal resistance specification of 500 K/W.
How is the pinout configured for BZX84-C22/LF1VL in SOT23 package?
BZX84-C22/LF1VL uses standard SOT23 pinout: Pin 1 = Anode (A), Pin 2 = Not Connected (n.c.), Pin 3 = Cathode (K). This configuration is explicitly defined in Table 2 (Pinning) and illustrated in Figure 8 of the NXP datasheet.
What is the typical differential resistance of BZX84-C22/LF1VL at 5 mA?
The typical differential resistance (rdiff) of BZX84-C22/LF1VL is 60 Ω at IZ = 5 mA, as listed in Table 8 under "Differential resistance" for the "C" tolerance series; this value directly impacts regulation accuracy under varying load currents.
BZX84-C22/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):
- 22 V
- Tolerance:
- ±5%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 55 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 15.4 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-C22/LF1VL FAQ
1.How can I place an order for BZX84-C22/LF1VL through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84-C22/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-C22/LF1VL reliable?
The price and inventory of BZX84-C22/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-C22/LF1VL is usually 5 days.
3.What payment methods are accepted for BZX84-C22/LF1VL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84-C22/LF1VL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84-C22/LF1VL?
BZX84-C22/LF1VL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84-C22/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-C22/LF1VL?
For technical support, including BZX84-C22/LF1VL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84-C22/LF1VL requirements.
6.How does Aetrix verify that BZX84-C22/LF1VL is sourced from the original manufacturer or authorized distributors?
All BZX84-C22/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-C22/LF1VL meets industry standards.
7.What is the process for return or replacement of BZX84-C22/LF1VL?
All BZX84-C22/LF1VL units undergo pre-shipment inspection (PSI). If there is an issue with BZX84-C22/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-C22/LF1VL part is unused and in its original packaging.
Return procedure for BZX84-C22/LF1VL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84-C22/LF1VL Tags
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MM5Z5V1ST1G
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