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NXP Semiconductors BZX84-C7V5/LF1R
- Part No.:
- BZX84-C7V5/LF1R
- Manufacturer:
- NXP Semiconductors
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZX84-C7V5/LF1R.pdf
- Description:
- DIODE ZENER 7.5V 250MW SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:7,196
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Product details
Overview
BZX84-C7V5/LF1R 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.
For engineers reviewing the BZX84-C7V5/LF1R datasheet, BZX84-C7V5/LF1R pinout, BZX84-C7V5/LF1R application, or BZX84-C7V5/LF1R equivalent, this page delivers verified electrical parameters, thermal limits, reverse current behavior at 7.5 V, differential resistance, temperature coefficient, and real-world design implications for voltage reference and overvoltage protection circuits.
Technical Context
This device operates as a two-terminal silicon Zener diode, conducting in reverse breakdown to maintain stable 7.5 V regulation under controlled current conditions. Its nominal Zener voltage is specified at IZ = 5 mA, with typical differential resistance of 30 Ω and temperature coefficient of +2.5 mV/K - indicating positive drift with rising temperature.
Designed for low-power regulation and transient suppression, it supports non-repetitive peak reverse power dissipation up to 40 W (100 µs pulse), reverse current ≤1 µA at 5.0 V, and forward voltage ≤0.9 V at 10 mA - enabling reliable clamping and reference functions in space-constrained PCB layouts.
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 window for precision biasing or feedback networks |
| Tolerance | Approximately ±5 % - suitable for non-critical voltage references where tight regulation is not required |
| Total Power Dissipation | 250 mW at Tamb ≤25 °C - sets maximum continuous DC power handling on standard FR4 PCB |
| Differential Resistance | Typ. 30 Ω at IZ = 5 mA - determines output impedance and load regulation sensitivity |
| Temperature Coefficient | +2.5 mV/K - quantifies voltage drift per degree Celsius rise, critical for thermal stability in automotive environments |
| Reverse Current | ≤1 µA at VR = 5.0 V - ensures minimal leakage in standby or high-impedance sensing paths |
| Non-repetitive Peak Reverse Power | 40 W (100 µs pulse) - enables short-duration surge suppression without device failure |
Pinout & Package
Package: SOT23 (TO-236AB), 3-lead surface-mount plastic package with 2.8 mm × 1.4 mm footprint and 1.1 mm height. Standardized for automated assembly and reflow soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Anode) | Anode connection | Forward-biased terminal; connects to lower-potential node in regulation path |
| 2 (n.c.) | Not connected | No internal bond; electrically isolated - must remain unconnected on PCB |
| 3 (Cathode) | Cathode connection | Reverse-biased terminal; connects to higher-potential node for Zener operation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, humidity, and mechanical stress testing |
| ±5 % Zener tolerance | Cost-optimized regulation accuracy for general-purpose applications where tighter tolerances are unnecessary |
| 250 mW power rating | Enables compact voltage reference design without heatsinking on standard FR4 PCB |
| SOT23 package | Compatible with high-volume pick-and-place equipment and standard reflow profiles |
| 150 °C max junction temperature | Supports operation in under-hood automotive environments and industrial enclosures |
Applications
| Automotive ECU Voltage Reference | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Providing stable 7.5 V bias to analog front-end circuitry in engine control units exposed to wide ambient temperature swings. IC Role / Device Role / Timing Role: Zener voltage reference diode establishing precise operating point for op-amps and ADC drivers. Use Value: Maintains <1 % output variation across −40 °C to +125 °C ambient due to predictable +2.5 mV/K temperature coefficient and AEC-Q101 robustness. | Use Scenario: Regulating supply rail for 4–20 mA transmitter ICs in process automation transmitters mounted in hot industrial cabinets. IC Role / Device Role / Timing Role: Low-power shunt regulator stabilizing local 7.5 V supply for current-loop driver stages. Use Value: Delivers 250 mW continuous dissipation capability without derating below 100 °C ambient, reducing need for external LDOs. |
| Consumer Power Supply Clamp | Telecom Line Interface Protection |
Use Scenario: Clamping transient spikes on 9 V wall-adapter-derived rails in smart home hubs during hot-plug events. IC Role / Device Role / Timing Role: Overvoltage protection element limiting voltage excursion to 7.9 V peak during surges. Use Value: Withstands 40 W non-repetitive peak reverse power (100 µs), suppressing fast transients before downstream ICs are stressed. | Use Scenario: Protecting RS-485 receiver inputs against induced surges on long cable runs in building management systems. IC Role / Device Role / Timing Role: Bidirectional transient suppressor (used with series resistor) limiting common-mode voltage to safe levels. Use Value: Low 30 Ω differential resistance ensures minimal voltage overshoot during clamping, preserving signal integrity on differential bus lines. |
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 MMBZ5236BS-7-F | 7.5 V ±5 %, SOT23, 225 mW Ptot, 30 Ω rdiff, +2.5 mV/K SZ | Lower power rating requires current limiting below 30 mA; identical thermal coefficient and tolerance | Select when sourcing from ON Semi preferred supply chain or requiring same marking code compatibility |
| Vishay BZX84-C7V5-TP | 7.5 V ±5 %, SOT23, 250 mW Ptot, 30 Ω rdiff, +2.5 mV/K SZ, AEC-Q101 qualified | Identical electrical specs and automotive qualification; differs only in tape/reel packaging and traceability documentation | Choose for dual-sourcing flexibility while maintaining full functional and reliability equivalence |
Compared with BZX84-C7V5/LF1R, MMBZ5236BS-7-F offers matching regulation but reduced power headroom, whereas BZX84-C7V5-TP provides drop-in replacement capability with identical performance and qualification - making it ideal for supply chain diversification without redesign.
Availability
BZX84-C7V5/LF1R is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor transmitters, consumer power clamp circuits, and telecom line interface protection requiring stable component supply and AEC-Q101 compliance.
Supply support for BZX84-C7V5/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 specializing in secure connectivity solutions for automotive, industrial, and IoT applications, with leadership in RF, analog, and mixed-signal technologies.
The BZX84 series is part of NXP's broad portfolio of discrete Zener diodes engineered for cost-effective, reliable voltage regulation and transient suppression in high-volume automotive and industrial electronics.
FAQ
What is the Zener voltage tolerance of BZX84-C7V5/LF1R?
The BZX84-C7V5/LF1R has an approximate ±5 % tolerance on its nominal 7.5 V Zener voltage, meaning the actual breakdown voltage falls between 7.0 V and 7.9 V when measured at 5 mA test current. This tolerance band is defined per the BZX84-C series specification and is confirmed in Table 8 of the NXP datasheet Rev. 6.
Is BZX84-C7V5/LF1R qualified for automotive use?
Yes, BZX84-C7V5/LF1R is AEC-Q101 qualified, as explicitly stated in Section 8.1 of the NXP datasheet. This qualification covers stress tests including temperature cycling, high-temperature reverse bias, and mechanical shock - confirming suitability for under-hood and cabin automotive electronics.
What is the maximum continuous power dissipation for BZX84-C7V5/LF1R?
BZX84-C7V5/LF1R has a maximum total power dissipation of 250 mW at ambient temperatures ≤25 °C, as specified in Table 1 (Quick reference data) and Table 5 (Limiting values). Derating is required above 25 °C per the Rth(j-a) = 500 K/W thermal resistance value.
What does the "/LF1R" suffix indicate in BZX84-C7V5/LF1R?
The "/LF1R" suffix denotes NXP's specific ordering variant for the BZX84-C7V5, indicating lead-free (LF), halogen-free (1), and tape-and-reel packaging (R). It corresponds to the 12NC ordering code ending in -215 and confirms compliance with RoHS Directive 2011/65/EU and JEDEC J-STD-020 moisture sensitivity level 1.
How does the temperature coefficient affect BZX84-C7V5/LF1R in practical designs?
The BZX84-C7V5/LF1R exhibits a +2.5 mV/K temperature coefficient, meaning its Zener voltage increases by approximately 2.5 mV per degree Celsius rise in junction temperature. In practice, this results in ~125 mV increase from −40 °C to +125 °C ambient - a key factor when designing voltage references for wide-temperature-range applications like automotive ECUs.
BZX84-C7V5/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):
- 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/LF1R FAQ
1.How can I place an order for BZX84-C7V5/LF1R through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84-C7V5/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-C7V5/LF1R reliable?
The price and inventory of BZX84-C7V5/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-C7V5/LF1R is usually 5 days.
3.What payment methods are accepted for BZX84-C7V5/LF1R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84-C7V5/LF1R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84-C7V5/LF1R?
BZX84-C7V5/LF1R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84-C7V5/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-C7V5/LF1R?
For technical support, including BZX84-C7V5/LF1R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84-C7V5/LF1R requirements.
6.How does Aetrix verify that BZX84-C7V5/LF1R is sourced from the original manufacturer or authorized distributors?
All BZX84-C7V5/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-C7V5/LF1R meets industry standards.
7.What is the process for return or replacement of BZX84-C7V5/LF1R?
All BZX84-C7V5/LF1R units undergo pre-shipment inspection (PSI). If there is an issue with BZX84-C7V5/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-C7V5/LF1R part is unused and in its original packaging.
Return procedure for BZX84-C7V5/LF1R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84-C7V5/LF1R Tags
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BZT52C5V6T-7
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MMSZ5231B-7-F
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MM5Z5V1ST1G
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