My Inquiry
My Account
Diodes Incorporated BZT52C3V3LP-7
- Part No.:
- BZT52C3V3LP-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- 0402 (1006 Metric)
- Datasheet:
-
BZT52C3V3LP-7.pdf
- Description:
- DIODE ZENER 3.3V 250MW 2DFN
- Quantity:
- Payment:
- Shipping:
Inventory:122,044
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BZT52C3V3LP-7 from Diodes Incorporated is a surface-mount Zener diode with nominal zener voltage 3.3 V, ±6% tolerance (3.1–3.5 V), 5 mA test current, 95 Ω maximum zener impedance at IZT, and 250 mW power dissipation in DFN1006-2 package - used for precision voltage regulation and overvoltage protection in low-power sensor biasing and microcontroller I/O clamping circuits.
For engineers reviewing the BZT52C3V3LP-7 datasheet, BZT52C3V3LP-7 pinout, BZT52C3V3LP-7 application, or BZT52C3V3LP-7 equivalent, key selection criteria include zener voltage accuracy at 5 mA, low dynamic impedance for stable reference, AEC-Q101 qualification for automotive-grade reliability, and DFN1006-2 footprint compatibility with high-density PCB layouts.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain a stable reference voltage across its terminals under varying load and temperature conditions. It exhibits a negative temperature coefficient of −3.5 mV/°C and supports reverse leakage ≤5 µA at 1.0 V, enabling predictable drift compensation in analog front-end designs.
The device is characterized at 5 mA test current with guaranteed zener voltage range (3.1–3.5 V), 95 Ω dynamic impedance at IZT, and 600 Ω maximum impedance at knee current (IZK = 1.0 mA), ensuring reliable regulation even near turn-on threshold.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 3.3 V nominal, 3.1–3.5 V range at 5 mA - defines precise clamping/reference level for 3.3 V rail protection |
| Power Dissipation (PD) | 250 mW at TA = 25°C - limits continuous power handling on standard FR-4 PCB with minimal copper |
| Zener Impedance (ZZT) | ≤95 Ω at IZT = 5 mA - ensures low voltage variation under small-signal load changes |
| Reverse Leakage (IR) | ≤5 µA at VR = 1.0 V - guarantees minimal quiescent current in standby bias networks |
| Temperature Coefficient | −3.5 mV/°C - enables predictable voltage drift correction in temperature-sensitive references |
| Package | DFN1006-2 (1.0 × 0.6 × 0.4 mm) - ultra-compact, leadless, RoHS-compliant footprint for space-constrained layouts |
Pinout & Package
DFN1006-2 package with two terminals: anode and cathode. Cathode identified by dot marking on top surface per Diodes Inc. marking convention. No internal die pad; thermal path via copper leads only.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Reverse breakdown reference node | Connected to lower-potential side in clamping configuration; establishes reference ground for zener operation |
| Cathode | Reverse breakdown terminal / Voltage regulation output node | Marked with dot; connected to regulated node (e.g., MCU I/O line or sensor supply rail) |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control modules and body electronics |
| Lead-free & "Green" compound | UL 94V-0 rated molding material with NiPdAu-plated terminals for robust solderability |
| Moisture Sensitivity Level 1 | No bake requirement before reflow; compatible with standard SMT assembly lines |
| Ultra-small DFN1006-2 footprint | 0.001 g weight and 0.6 mm width enable placement in wearables and IoT edge nodes |
Applications
| Automotive Sensor Biasing | Microcontroller I/O Protection |
|---|---|
Use Scenario: Providing stable 3.3 V bias to analog output sensors (e.g., pressure or temperature transducers) in engine control units. IC Role / Device Role / Timing Role: Zener diode acts as shunt voltage reference, maintaining constant bias despite battery voltage fluctuations (9–16 V). Use Value: Ensures sensor output linearity within ±0.5% error band across −40°C to +125°C ambient range. | Use Scenario: Clamping ESD transients on 3.3 V GPIO pins of automotive-grade microcontrollers (e.g., NXP S32K series). IC Role / Device Role / Timing Role: Fast-acting shunt protector limiting pin voltage to ≤3.5 V during IEC 61000-4-2 ±8 kV contact discharge. Use Value: Prevents latch-up and gate oxide damage without adding series resistance that degrades signal integrity. |
| Low-Power Wearable Reference | Industrial Signal Conditioning |
Use Scenario: Generating local 3.3 V reference for ADC input scaling in battery-powered health monitors. IC Role / Device Role / Timing Role: Passive voltage reference with <5 µA leakage, minimizing quiescent current in sleep mode. Use Value: Extends coin-cell battery life beyond 12 months while maintaining 12-bit ADC accuracy. | Use Scenario: Stabilizing excitation voltage for 4–20 mA loop-powered transmitters in factory automation systems. IC Role / Device Role / Timing Role: Zener-based shunt regulator compensating for supply ripple on 24 V loop power rails. Use Value: Reduces output current noise to <10 nA RMS, meeting IEC 61000-4-5 surge immunity requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5226BS-7-F | Zener voltage 3.3 V (±5%), 350 mW PD, SOT-23 package (2.9 × 1.3 × 1.0 mm) | Larger footprint; higher power but less suitable for ultra-dense layouts | Select when board space allows larger package and higher power margin is needed |
| 1SMA5913BT3G | Zener voltage 3.3 V (±5%), 1.5 W PD, SMA package (4.3 × 2.6 × 2.2 mm) | Through-hole compatible; designed for high-energy transient suppression | Select for industrial power supply rail clamping where surge energy exceeds 0.5 J |
Compared with MMBZ5226BS-7-F and 1SMA5913BT3G, BZT52C3V3LP-7 offers the smallest footprint and AEC-Q101 qualification - critical for automotive and portable electronics where size, reliability, and thermal constraints dominate.
Availability
BZT52C3V3LP-7 is available at Aetrix Electronics and suitable for automotive sensor modules, wearable health devices, industrial 4–20 mA transmitters, and microcontroller-based edge nodes requiring stable component supply with full traceability.
Supply support for BZT52C3V3LP-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, specializing in high-reliability components for automotive, industrial, and consumer markets.
The BZT52CxxLP series belongs to Diodes' AEC-Q101-qualified Zener diode portfolio, engineered specifically for precision voltage regulation and ESD protection in space-constrained, thermally demanding environments.
FAQ
What is the maximum reverse leakage current for BZT52C3V3LP-7 at 1.0 V?
The maximum reverse leakage current is 5 µA at VR = 1.0 V and TA = 25°C, as specified in the Electrical Characteristics table. This value remains ≤10 µA across the full operating temperature range (−65°C to +150°C), verified per AEC-Q101 stress testing.
Is BZT52C3V3LP-7 compatible with lead-free reflow profiles?
Yes - it is RoHS-compliant and qualified for standard JEDEC J-STD-020C Level 1 moisture sensitivity. The NiPdAu-plated terminals meet MIL-STD-202 Method 208 solderability requirements and withstand peak reflow temperatures up to 260°C.
Does this Zener diode have a defined cathode marking?
Yes - the cathode is marked with a visible dot on the top surface of the DFN1006-2 package, aligned with the mechanical drawing's "Dot Denotes Cathode Side" specification. This matches the marking code "W3" printed adjacent to the dot per datasheet Page 2.
What is the thermal resistance junction-to-ambient for BZT52C3V3LP-7?
RθJA is 500°C/W when mounted on an FR-4 PCB using the minimum recommended pad layout (per datasheet Page 4). This value assumes no thermal vias or copper pour - adding two 0.3 mm thermal vias under the anode/cathode pads reduces RθJA to ~280°C/W.
BZT52C3V3LP-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 0402 (1006 Metric)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 3.3 V
- Tolerance:
- ±6%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 95 Ohms
- Current - Reverse Leakage @ Vr:
- 5 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:
- X1-DFN1006-2
BZT52C3V3LP-7 FAQ
1.How can I place an order for BZT52C3V3LP-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52C3V3LP-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 BZT52C3V3LP-7 reliable?
The price and inventory of BZT52C3V3LP-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52C3V3LP-7 is usually 5 days.
3.What payment methods are accepted for BZT52C3V3LP-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52C3V3LP-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52C3V3LP-7?
BZT52C3V3LP-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52C3V3LP-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 BZT52C3V3LP-7?
For technical support, including BZT52C3V3LP-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52C3V3LP-7 requirements.
6.How does Aetrix verify that BZT52C3V3LP-7 is sourced from the original manufacturer or authorized distributors?
All BZT52C3V3LP-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 BZT52C3V3LP-7 meets industry standards.
7.What is the process for return or replacement of BZT52C3V3LP-7?
All BZT52C3V3LP-7 units undergo pre-shipment inspection (PSI). If there is an issue with BZT52C3V3LP-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 BZT52C3V3LP-7 part is unused and in its original packaging.
Return procedure for BZT52C3V3LP-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZT52C3V3LP-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…
