My Inquiry
My Account
onsemi BZX84C7V5
- Part No.:
- BZX84C7V5
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZX84C7V5.pdf
- Description:
- DIODE ZENER 7.5V 350MW SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:19,021
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BZX84C7V5 from Nexperia is a 7.5 V ±5 % tolerance Zener voltage regulator diode in SOT23 package, rated for 250 mW total power dissipation at 25 °C ambient, with 30 Ω typical differential resistance at 5 mA and 1 µA maximum reverse current at 5.7 V. It serves as a precision reference or overvoltage clamp in low-power analog signal conditioning circuits.
For engineers reviewing the BZX84C7V5 datasheet, pinout, applications, or equivalent options, this page delivers verified electrical parameters, thermal behavior, automotive-grade AEC-Q101 qualification status, and real-world design implications for voltage regulation in space-constrained PCB layouts.
Technical Context
The BZX84C7V5 operates as a two-terminal silicon Zener diode optimized for stable reverse-biased breakdown at nominal 7.5 V. Its temperature coefficient of +2.5 mV/K (typical) ensures predictable drift across –65 °C to +150 °C junction range, and its 150 W/°C thermal resistance from junction to ambient enables reliable operation under pulsed loads up to 40 W non-repetitive peak power.
This device belongs to the BZX84 series' "C" tolerance group (±5 %), distinguishing it from tighter-tolerance A (±1 %) and B (±2 %) variants. Its 3-pin SOT23 footprint supports automated placement, and its 1 pF diode capacitance at 1 MHz/0 V bias minimizes high-frequency loading in reference paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 7.5 V - Stable reverse breakdown voltage at 5 mA test current; defines reference point for regulation or clamping. |
| Tolerance | ±5 % - Specifies allowable deviation (7.0 V to 7.9 V) under specified test conditions; impacts accuracy in precision references. |
| Differential Resistance | 30 Ω (typ) at IZ = 5 mA - Low dynamic impedance improves regulation stability against load current variations. |
| Reverse Current | ≤1 µA at VR = 5.7 V - Ensures minimal leakage before breakdown, critical for low-power standby circuits. |
| Total Power Dissipation | 250 mW at Tamb ≤ 25 °C - Maximum continuous DC power; derates linearly above 25 °C per 500 K/W thermal resistance. |
| Non-repetitive Peak Power | 40 W - Supports transient surge suppression (tp ≤ 100 µs); enables use in ESD protection or pulse clamping. |
| AEC-Q101 Qualified | Yes - Validated for automotive applications including engine control modules and body electronics requiring reliability under thermal cycling and vibration. |
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; suitable for reflow and wave soldering per JEDEC standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Anode) | Anode connection | Forward-biased terminal; connects to lower-potential node in reverse-bias regulation configuration. |
| 2 (n.c.) | Not connected | Internally unconnected lead; must remain floating-no PCB trace or pad connection required. |
| 3 (Cathode) | Cathode connection | Reverse-biased terminal; connects to higher-potential node and serves as output reference point. |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile SOT23 packaging | Enables high-density PCB layouts in portable and automotive ECUs where board space is constrained. |
| ±5 % voltage tolerance | Provides cost-effective regulation performance for non-critical reference applications without premium tight-tolerance pricing. |
| AEC-Q101 qualification | Validates suitability for automotive under-hood and cabin electronics requiring extended temperature and lifetime reliability. |
| 150 W/°C thermal resistance (junction-to-ambient) | Supports sustained operation at elevated ambient temperatures when mounted on standard FR4 PCB with single-sided copper. |
| 1 pF diode capacitance at 1 MHz | Minimizes signal distortion and phase shift in high-frequency feedback loops or RF bias networks. |
Applications
| Automotive Body Control Module (BCM) | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Regulating 5 V supply rail for microcontroller I/O peripherals in door module electronics. IC Role / Device Role / Timing Role: Zener reference diode providing stable 7.5 V clamp to protect downstream logic from battery transients. Use Value: Withstands 40 W non-repetitive surges and maintains <1 µA leakage below 5.7 V, ensuring robustness during load-dump events. |
Use Scenario: Biasing op-amp input stages in 4–20 mA transmitter circuits operating at 24 V loop supply. IC Role / Device Role / Timing Role: Precision voltage reference establishing stable common-mode level for current-sense amplifiers. Use Value: 30 Ω differential resistance and +2.5 mV/K tempco enable <±20 mV drift over –40 °C to +85 °C, meeting industrial grade accuracy. |
| Consumer USB-C Power Delivery Monitor | Medical Portable Diagnostic Device |
Use Scenario: Clamping CC line voltage in USB-C port interface to prevent overvoltage damage to PD controller IC. IC Role / Device Role / Timing Role: Fast-response Zener clamp limiting CC pin to safe 7.5 V during hot-plug or fault conditions. Use Value: 100 µs pulse capability and 1 pF capacitance avoid signal integrity degradation on high-speed CC communication lines. |
Use Scenario: Providing regulated bias for photodiode amplifier in handheld pulse oximeter front-end. IC Role / Device Role / Timing Role: Low-noise voltage reference stabilizing transimpedance gain in ultra-low-current measurement path. Use Value: Sub-µA leakage at 5.7 V prevents offset error accumulation, supporting <1 nA input current resolution. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage regulator diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5227BS-7-F (Diodes Inc.) | 7.5 V ±5 %, 200 mW Ptot, 30 Ω rdif, but only qualified to AEC-Q200 (passive component standard), not AEC-Q101. | Lacks automotive semiconductor qualification; unsuitable for safety-critical vehicle subsystems. | Select when cost sensitivity outweighs automotive qualification requirements and thermal derating margin is available. |
| BZX84C7V5-7-F (Diodes Inc.) | Identical electrical specs and SOT23 package; same 7.5 V ±5 %, 250 mW, 30 Ω rdif, but marked with different top-side code (Z6* vs. Z6). | No functional difference; fully interchangeable in layout and schematic; differs only in manufacturing traceability. | Choose for dual-sourcing flexibility while maintaining identical performance, qualification, and footprint. |
Compared with MMBZ5227BS-7-F, BZX84C7V5 offers validated AEC-Q101 compliance essential for automotive electronics, whereas BZX84C7V5-7-F provides a second-source option with identical electrical and mechanical behavior-enabling supply chain resilience without design revision.
Availability
BZX84C7V5 is available at Aetrix Electronics and suitable for automotive body control modules, industrial sensor transmitters, USB-C interface protection, and portable medical diagnostics requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for BZX84C7V5 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
Nexperia is a global leader in discrete, logic, and PowerMOS semiconductors, spun off from NXP in 2017 and focused on automotive, industrial, computing, and consumer markets.
The BZX84 series was designed for general-purpose voltage regulation and overvoltage protection in compact, cost-sensitive applications-emphasizing reliability, standardized E24 voltage selection, and broad tolerance options across 37 breakdown voltages.
FAQ
What is the nominal Zener voltage and tolerance of the BZX84C7V5?
The BZX84C7V5 has a nominal Zener voltage of 7.5 V with a ±5 % tolerance, meaning its actual breakdown voltage falls between 7.0 V and 7.9 V when tested at 5 mA. This tolerance band is defined per the "C" variant of the BZX84 series and is confirmed in Table 8 of the Nexperia datasheet Rev. 6. The BZX84C7V5 is intended for applications where moderate regulation accuracy suffices without premium tight-tolerance cost.
Is the BZX84C7V5 qualified for automotive applications?
Yes, the BZX84C7V5 is AEC-Q101 qualified, as explicitly stated in Section 8.1 of the Nexperia datasheet. This qualification validates its reliability under automotive stress conditions-including temperature cycling, humidity, mechanical shock, and high-temperature operating life-making it suitable for use in engine control units, body electronics, and infotainment systems.
What is the maximum power dissipation of the BZX84C7V5 and how does it derate with temperature?
The BZX84C7V5 has a maximum total power dissipation of 250 mW at ambient temperature ≤25 °C. Above 25 °C, it derates linearly at 2.0 mW/°C due to its 500 K/W junction-to-ambient thermal resistance (Rth(j-a)). For example, at 75 °C ambient, usable power drops to 150 mW. This derating curve is defined in Table 6 and Figure 1 of the official Nexperia datasheet.
How many pins does the BZX84C7V5 have and what is the function of each?
The BZX84C7V5 uses a 3-pin SOT23 package with defined pinning: Pin 1 is Anode (A), Pin 2 is Not Connected (n.c.), and Pin 3 is Cathode (K). Pin 2 is internally unconnected and must remain unattached on the PCB. This configuration is documented in Table 2 ("Pinning") of the Nexperia BZX84 series datasheet and verified across multiple manufacturer sources.
What is the typical differential resistance and why does it matter for regulation performance?
The BZX84C7V5 exhibits a typical differential resistance (rdif) of 30 Ω at 5 mA Zener current, as listed in Table 8 of the Nexperia datasheet. This low dynamic impedance means the output voltage changes only ~150 mV for a 5 mA load variation-directly improving regulation stability in variable-current applications such as reference buffers or active clamp circuits.
BZX84C7V5 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Bulk
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 7.5 V
- Tolerance:
- ±6%
- Power - Max:
- 350 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:
- -55°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
BZX84C7V5 FAQ
1.How can I place an order for BZX84C7V5 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84C7V5 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 BZX84C7V5 reliable?
The price and inventory of BZX84C7V5 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84C7V5 is usually 5 days.
3.What payment methods are accepted for BZX84C7V5?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84C7V5 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84C7V5?
BZX84C7V5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84C7V5 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 BZX84C7V5?
For technical support, including BZX84C7V5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84C7V5 requirements.
6.How does Aetrix verify that BZX84C7V5 is sourced from the original manufacturer or authorized distributors?
All BZX84C7V5 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 BZX84C7V5 meets industry standards.
7.What is the process for return or replacement of BZX84C7V5?
All BZX84C7V5 units undergo pre-shipment inspection (PSI). If there is an issue with BZX84C7V5, 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 BZX84C7V5 part is unused and in its original packaging.
Return procedure for BZX84C7V5:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84C7V5 Tags
-
MMBZ5240B-7-F
Diodes Incorporated
-
BZT52C5V6T-7
Diodes Incorporated
-
MMSZ5231B-7-F
Diodes Incorporated
-
BZT52C15-7-F
Diodes Incorporated
-
BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
-
MMSZ4682T1G
onsemi
-
BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
-
SMAJ4744A-TP
Micro Commercial Co
-
BZT52C3V6LP-7
Diodes Incorporated
-
SMAZ12-13-F
Diodes Incorporated
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
