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NXP Semiconductors BZX84-C7V5/LF1VL
- Part No.:
- BZX84-C7V5/LF1VL
- Manufacturer:
- NXP Semiconductors
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZX84-C7V5/LF1VL.pdf
- Description:
- DIODE ZENER 7.5V 250MW SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:8,208
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Product details
Overview
BZX84-C7V5/LF1VL from NXP Semiconductors is a 7.5 V ±5 % tolerance Zener voltage regulator diode in SOT23 (TO-236AB) package, rated for 250 mW total power dissipation at 25 °C ambient, with 150 °C maximum junction temperature and AEC-Q101 qualification for automotive use. It delivers stable reference voltage in low-power supply regulation and overvoltage protection circuits.
For engineers reviewing the BZX84-C7V5/LF1VL datasheet, BZX84-C7V5/LF1VL pinout, BZX84-C7V5/LF1VL application, or BZX84-C7V5/LF1VL equivalent, key selection criteria include nominal Zener voltage (7.5 V), tolerance (±5 %), differential resistance (≤80 Ω at IZ = 5 mA), reverse current (≤1 μA at VR = 5.3 V), and thermal resistance (500 K/W junction-to-ambient).
Technical Context
This device operates as a two-terminal shunt voltage regulator, maintaining a stable reverse-biased breakdown voltage across its cathode–anode terminals under controlled current conditions. Its Zener mechanism provides predictable voltage clamping with a temperature coefficient of +2.5 to +5.3 mV/K and typical differential resistance of 30 Ω at 5 mA.
Designed for surface-mount implementation on FR4 PCBs with standard SOT23 footprint, it supports non-repetitive peak reverse power dissipation up to 40 W (100 μs pulse) and forward voltage ≤0.9 V at 10 mA. The "C" suffix denotes approximately ±5 % tolerance, distinguishing it from tighter-tolerance A (±1 %) and B (±2 %) variants in the same family.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 7.0 V to 7.9 V at IZ = 5 mA - defines usable regulation range under nominal bias |
| Tolerance | Approximately ±5 % - determines worst-case output deviation in precision reference designs |
| Total Power Dissipation (Ptot) | 250 mW at Tamb ≤25 °C - sets maximum continuous DC power handling on standard FR4 board |
| Differential Resistance (rdif) | 30 Ω (typ), 80 Ω (max) at IZ = 5 mA - impacts regulation stiffness and load-induced voltage drift |
| Reverse Current (IR) | ≤1 μA at VR = 5.3 V - ensures minimal leakage below breakdown, critical for battery-powered standby circuits |
| Non-repetitive Peak Reverse Power | 40 W (tp ≤100 μs) - enables transient overvoltage suppression without device failure |
| Junction Temperature Range | −65 °C to +150 °C - supports operation in extended-temperature automotive and industrial environments |
Pinout & Package
SOT23 (TO-236AB) plastic surface-mounted package with 3 leads, 1.9 mm × 1.1 mm body, 0.9 mm height, and standard 4 mm tape-and-reel packaging (3000 pcs/reel).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Anode) | Anode connection | Connected to lower-potential side in reverse-bias configuration; carries forward current during conduction |
| 2 (n.c.) | Not connected | No internal bond; must remain unconnected on PCB to avoid parasitic coupling or mechanical stress |
| 3 (Cathode) | Cathode connection | Connected to higher-potential side in reverse-bias; primary terminal for voltage reference output and heat sinking |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, humidity testing, and mechanical shock |
| Low thermal resistance | Rth(j-a) = 500 K/W - enables stable operation without heatsinking in compact consumer and industrial layouts |
| Controlled temperature coefficient | +2.5 to +5.3 mV/K - minimizes drift over −40 °C to +125 °C ambient, supporting stable references |
| Low reverse leakage | IR ≤1 μA at VR = 5.3 V - preserves battery life in always-on monitoring and sensor biasing applications |
| Standard SOT23 footprint | Compatible with automated pick-and-place and reflow processes using JEDEC-standard land patterns |
Applications
| Automotive ECU Voltage Clamp | Industrial Sensor Bias Reference |
|---|---|
Use Scenario: Clamping microcontroller I/O lines against load-dump transients in 12 V vehicle networks. IC Role / Device Role / Timing Role: Shunt regulator absorbing surge energy above 7.5 V while holding downstream logic within safe voltage limits. Use Value: Prevents latch-up or permanent damage to 5 V tolerant inputs using only 250 mW continuous dissipation capability. |
Use Scenario: Providing stable excitation voltage for resistive bridge sensors in PLC analog input modules. IC Role / Device Role / Timing Role: Precision voltage reference source with low temperature drift and negligible quiescent current draw. Use Value: Enables <1 % full-scale error over −40 °C to +85 °C due to tight 7.0–7.9 V Zener window and +2.5 mV/K TC. |
| Consumer Power Supply Feedback | IoT Node Overvoltage Protection |
Use Scenario: Secondary-side voltage sensing in isolated flyback converters for USB-C chargers. IC Role / Device Role / Timing Role: Error amplifier reference node defining regulated output voltage via optocoupler feedback loop. Use Value: Maintains ±5 % output accuracy despite component aging and line/load variation due to stable 7.5 V Zener point. |
Use Scenario: Protecting Li-ion battery management ICs from accidental 12 V adapter misconnection. IC Role / Device Role / Timing Role: Standby-mode crowbar element triggering shutdown when input exceeds 7.9 V threshold. Use Value: Limits fault current to <1 μA until overvoltage occurs, extending shelf life and reducing system standby power. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5236B (ON Semiconductor) | 7.5 V ±5 %, 350 mW Ptot, SOT23, but higher rdif (15 Ω min) and no AEC-Q101 rating | Preferred for cost-sensitive consumer power supplies where automotive qualification is unnecessary | Select when higher power margin is needed and automotive reliability is not required |
| BZX84-C7V5-7-F (Diodes Inc.) | Identical 7.5 V ±5 %, 250 mW, SOT23, AEC-Q101 qualified, but different marking (7F vs Z6*) and RoHS compliance level | Drop-in replacement in existing NXP-designed boards with identical electrical behavior and thermal profile | Choose for dual-sourcing continuity where footprint, specs, and qualification match exactly |
Compared with MMBZ5236B, BZX84-C7V5/LF1VL offers automotive-grade reliability at lower power rating; compared with BZX84-C7V5-7-F, it shares identical regulation performance but differs in traceability coding and packaging format-both alternatives require validation of marking-based lot tracking and solder paste compatibility.
Availability
BZX84-C7V5/LF1VL is available at Aetrix Electronics and suitable for automotive ECU protection, industrial sensor biasing, consumer power supply feedback, and IoT node overvoltage protection requiring stable component supply across production lifecycles.
Supply support for BZX84-C7V5/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 high-volume, AEC-Q101-qualified family of low-power Zener regulators targeting cost-sensitive yet reliability-critical voltage reference and clamping functions in automotive control units and industrial edge devices.
FAQ
What is the exact Zener voltage range for BZX84-C7V5/LF1VL?
The BZX84-C7V5/LF1VL has a guaranteed Zener voltage range of 7.0 V to 7.9 V at 5 mA test current, reflecting its approximately ±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 device maintains this regulation window across its full operating temperature range with a positive temperature coefficient.
Is BZX84-C7V5/LF1VL suitable for automotive applications?
Yes, BZX84-C7V5/LF1VL is AEC-Q101 qualified per Section 8.1 of the official NXP datasheet, confirming its suitability for automotive electronic control units, body electronics, and infotainment systems. It meets stress-test requirements for temperature cycling, humidity, and mechanical shock, and operates reliably from −40 °C to +125 °C ambient.
What is the maximum reverse current at 5.3 V for BZX84-C7V5/LF1VL?
The maximum reverse current (IR) for BZX84-C7V5/LF1VL is 1 μA when reverse voltage (VR) is applied at 5.3 V, as specified in Table 8 of the NXP datasheet. This low leakage ensures minimal power loss in standby modes and supports long battery life in always-on sensor nodes and IoT endpoints.
Does BZX84-C7V5/LF1VL have a connected pin 2?
No, pin 2 of BZX84-C7V5/LF1VL is explicitly marked "n.c." (not connected) in Table 2 of the NXP datasheet. It has no internal bond and must remain unconnected on the PCB layout to prevent unintended coupling, thermal stress, or solder bridging during assembly.
What is the thermal resistance from junction to ambient for BZX84-C7V5/LF1VL?
The thermal resistance from junction to ambient (Rth(j-a)) for BZX84-C7V5/LF1VL is 500 K/W under free-air conditions on a standard FR4 PCB with single-sided copper and tin plating, as stated in Table 6 of the NXP datasheet. This value assumes the device is mounted using the recommended footprint in Figure 9.
BZX84-C7V5/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):
- 7.5 V
- Tolerance:
- ±5%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 15 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 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-C7V5/LF1VL FAQ
1.How can I place an order for BZX84-C7V5/LF1VL through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84-C7V5/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-C7V5/LF1VL reliable?
The price and inventory of BZX84-C7V5/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-C7V5/LF1VL is usually 5 days.
3.What payment methods are accepted for BZX84-C7V5/LF1VL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84-C7V5/LF1VL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84-C7V5/LF1VL?
BZX84-C7V5/LF1VL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84-C7V5/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-C7V5/LF1VL?
For technical support, including BZX84-C7V5/LF1VL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84-C7V5/LF1VL requirements.
6.How does Aetrix verify that BZX84-C7V5/LF1VL is sourced from the original manufacturer or authorized distributors?
All BZX84-C7V5/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-C7V5/LF1VL meets industry standards.
7.What is the process for return or replacement of BZX84-C7V5/LF1VL?
All BZX84-C7V5/LF1VL units undergo pre-shipment inspection (PSI). If there is an issue with BZX84-C7V5/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-C7V5/LF1VL part is unused and in its original packaging.
Return procedure for BZX84-C7V5/LF1VL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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