My Inquiry
My Account
Diodes Incorporated BZX84C3V0-7
- Part No.:
- BZX84C3V0-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZX84C3V0-7.pdf
- Description:
- DIODE ZENER 3V 300MW SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,991
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BZX84C3V0-7 from Diodes Incorporated is a 3.0 V, 350 mW surface-mount Zener diode in SOT23 package, designed for precision voltage regulation and reference applications at 5 mA test current, with ±0.2 V tolerance (2.8–3.2 V), 95 Ω dynamic impedance, and −3.5 mV/°C temperature coefficient. It serves as a stable shunt voltage reference in low-power analog circuits, power supply feedback paths, and overvoltage protection clamps.
For engineers reviewing the BZX84C3V0-7 datasheet, BZX84C3V0-7 pinout, BZX84C3V0-7 application, or BZX84C3V0-7 equivalent, key selection criteria include nominal Zener voltage accuracy, thermal coefficient stability, low reverse leakage (≤10 µA @ 1.0 V), SOT23 footprint compatibility, and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
This Zener diode operates in reverse breakdown mode with tightly controlled voltage regulation across a 1.0–5.0 mA operating range. Its planar die construction ensures consistent parametric performance and robustness against transient stress.
The device exhibits a negative temperature coefficient of −3.5 mV/°C, enabling predictable drift compensation in temperature-sensitive references. Thermal resistance is 357 °C/W (junction-to-ambient, free-air), supporting reliable operation up to +150 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 3.0 V nominal (2.8–3.2 V range @ IZT = 5 mA); enables precise 3.0 V rail clamping or reference generation |
| Power Dissipation | 350 mW maximum (at TA = 25°C); supports continuous regulation in compact PCB layouts without forced cooling |
| Zener Impedance (ZZT) | 95 Ω @ 5 mA; ensures minimal output voltage variation under load current changes |
| Reverse Leakage (IR) | ≤10 µA @ VR = 1.0 V; minimizes quiescent current in battery-powered voltage monitor circuits |
| Temperature Coefficient | −3.5 mV/°C; allows predictable voltage drift modeling for calibration-critical analog front-ends |
| Package | SOT23; industry-standard 3-pin surface-mount footprint compatible with automated pick-and-place and reflow assembly |
| Qualification | AEC-Q101 qualified; validated for automotive electronics where reliability under thermal cycling and vibration is mandatory |
Pinout & Package
Package: SOT23 - three-terminal plastic-molded surface-mount package with matte tin-plated Alloy 42 leadframe; polarity marked by cathode band on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Forward conduction terminal | Connected to lower-potential node in shunt regulator configuration; defines forward voltage drop (0.9 V @ 10 mA) |
| Cathode (Pin 2) | Zener breakdown terminal | Connected to regulated voltage node; carries reverse current during regulation; marked by band on package top |
| NC / Dummy (Pin 3) | Non-connected internal tie | Internally unconnected; electrically isolated; must not be used as signal or ground path |
Key Features
| Feature | Design Value |
|---|---|
| Planar die construction | Ensures repeatable Zener voltage distribution and long-term parameter stability under thermal stress |
| 350 mW power rating | Enables use in higher-current regulation tasks without derating below 125°C ambient |
| AEC-Q101 qualification | Validates suitability for automotive infotainment, body control modules, and ADAS sensor interfaces |
| Halogen- and antimony-free "Green" compound | Meets RoHS 3 (2015/863/EU) and automotive environmental compliance requirements |
| Moisture sensitivity Level 1 | Eliminates bake preconditioning prior to reflow, reducing manufacturing overhead |
Applications
| USB Port Overvoltage Clamp | Microcontroller Reset Reference |
|---|---|
Use Scenario: Protects 3.3 V USB data lines from ESD-induced transients exceeding 3.3 V rail. IC Role / Device Role: Shunt clamp that conducts excess energy to ground when voltage exceeds 3.0 V threshold. Use Value: Limits peak line voltage to ≤3.2 V (max Zener), preventing damage to USB PHY transceivers rated for 3.6 V absolute max. |
Use Scenario: Generates a stable 3.0 V reference for microcontroller reset supervisor ICs requiring accurate trip thresholds. IC Role / Device Role: Precision voltage reference source feeding comparator input in reset generator circuit. Use Value: Enables ±6.7% reset threshold accuracy (2.8–3.2 V) across temperature, improving system boot reliability. |
| Low-Power Sensor Bias Supply | Industrial Analog Signal Conditioning |
Use Scenario: Provides regulated 3.0 V bias for MEMS pressure sensor bridge excitation in battery-operated IoT nodes. IC Role / Device Role: Low-quiescent shunt regulator maintaining constant excitation voltage despite battery discharge. Use Value: Maintains sensor full-scale output stability within ±0.5% over 2.8–4.2 V input range due to tight Zener tolerance and low IR. |
Use Scenario: Stabilizes reference voltage for 12-bit ADC input scaling in PLC analog input modules. IC Role / Device Role: Temperature-compensated voltage reference for ratiometric measurement circuits. Use Value: −3.5 mV/°C TC enables predictable offset correction in firmware, reducing calibration points from 5 to 2 across −40°C to +85°C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5223BS-7-F | 3.0 V Zener, 200 mW rating, 100 Ω ZZT, same SOT23 package | Lower power handling limits sustained current to ≤3 mA; less suitable for >5 mA regulation loads | Select when board space is constrained and thermal budget permits lower dissipation |
| BZX84-C3V0,115 | Identical electrical specs but packaged in 10,000-piece tape-and-reel (−13-F suffix); same AEC-Q101 qualification | No functional difference; only packaging and reel size differ | Choose for high-volume production runs requiring larger reels to reduce changeover frequency |
Compared with MMBZ5223BS-7-F, BZX84C3V0-7 delivers 75% higher power margin and tighter ZZT; versus BZX84-C3V0,115, it offers identical performance in smaller 3,000-piece reels-ideal for prototyping and mid-volume builds.
Availability
BZX84C3V0-7 is available at Aetrix Electronics and suitable for USB interface protection, microcontroller reset supervision, and low-power sensor biasing requiring stable component supply with AEC-Q101 traceability and RoHS 3 compliance.
Supply support for BZX84C3V0-7 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.
The BZX84 series belongs to Diodes' standard Zener diode product line, engineered for cost-effective, high-reliability voltage regulation in consumer, computing, and automotive electronics.
FAQ
What is the maximum reverse current specification for BZX84C3V0-7 at 1.0 V?
The maximum reverse current (IR) is 10 µA at VR = 1.0 V and TA = 25°C. This low leakage ensures minimal power loss in always-on monitoring circuits and preserves battery life in portable devices.
Is BZX84C3V0-7 suitable for automotive applications?
Yes-BZX84C3V0-7 is AEC-Q101 qualified and manufactured with halogen- and antimony-free green molding compound. It meets automotive reliability requirements for under-hood and cabin electronics including body control modules and sensor interfaces.
How does the −3.5 mV/°C temperature coefficient affect circuit design?
This negative coefficient means output voltage decreases by 3.5 mV per degree Celsius rise. Designers use it to compensate for positive TC components (e.g., op-amp offsets) or apply linear correction in firmware-enabling stable references across −40°C to +125°C.
Can BZX84C3V0-7 replace BZX84C3V3 in a 3.3 V reference circuit?
No-BZX84C3V0-7 has a nominal Zener voltage of 3.0 V (2.8–3.2 V), while BZX84C3V3 is 3.3 V (3.1–3.5 V). Substituting would shift regulation point by ~300 mV, potentially causing undervoltage lockout or incorrect ADC scaling unless circuit tolerances accommodate the difference.
BZX84C3V0-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Voltage - Zener (Nom) (Vz):
- 3 V
- Tolerance:
- ±7%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 95 Ohms
- Current - Reverse Leakage @ Vr:
- 10 µA @ 1 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -65°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
BZX84C3V0-7 FAQ
1.How can I place an order for BZX84C3V0-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84C3V0-7 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 BZX84C3V0-7 reliable?
The price and inventory of BZX84C3V0-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84C3V0-7 is usually 5 days.
3.What payment methods are accepted for BZX84C3V0-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84C3V0-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84C3V0-7?
BZX84C3V0-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84C3V0-7 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 BZX84C3V0-7?
For technical support, including BZX84C3V0-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84C3V0-7 requirements.
6.How does Aetrix verify that BZX84C3V0-7 is sourced from the original manufacturer or authorized distributors?
All BZX84C3V0-7 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 BZX84C3V0-7 meets industry standards.
7.What is the process for return or replacement of BZX84C3V0-7?
All BZX84C3V0-7 units undergo pre-shipment inspection (PSI). If there is an issue with BZX84C3V0-7, 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 BZX84C3V0-7 part is unused and in its original packaging.
Return procedure for BZX84C3V0-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84C3V0-7 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
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
