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Nexperia USA Inc. BZT52-C3V3J
- Part No.:
- BZT52-C3V3J
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123
- Datasheet:
-
BZT52-C3V3J.pdf
- Description:
- DIODE ZENER 3.3V 350MW SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:27,658
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Product details
Overview
BZT52-C3V3J from Nexperia is a ±5 % tolerance Zener diode in SOD123 package, rated for 3.3 V nominal regulation at 5 mA, with 500 Ω max differential resistance and 5 μA reverse current at 1 V, used for low-power voltage reference and overvoltage protection in consumer power rails.
For engineers reviewing the BZT52-C3V3J datasheet, BZT52-C3V3J pinout, BZT52-C3V3J application, or BZT52-C3V3J equivalent, key selection criteria include Zener voltage tolerance (±5 %), thermal resistance (210 K/W junction-to-solder-point), SOD123 footprint compatibility, and non-automotive qualification status per Rev. 2 (2025) documentation.
Technical Context
This Zener diode operates in reverse breakdown to maintain stable 3.3 V output across 1–5 mA test currents, with temperature coefficient of –3.5 to 0.0 mV/K and low 450 pF capacitance at 1 MHz/0 V, enabling use in noise-sensitive analog references.
Its SOD123 package features cathode-marked anode-cathode polarity, 0.7 mm lead pitch, and 1.7 × 3.75 mm body dimensions, optimized for FR4 PCB mounting with 1 cm² cathode pad for 590 mW total power dissipation at Tamb ≤ 25 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 3.3 V nominal at IZ = 5 mA; ±5 % tolerance ensures 3.1–3.5 V regulation window in production designs. |
| Differential Resistance (rdif) | ≤ 500 Ω at IZ = 5 mA; limits output voltage shift under load variation in feedback networks. |
| Reverse Current (IR) | ≤ 5 μA at VR = 1 V; minimizes standby power loss in always-on bias circuits. |
| Forward Voltage (VF) | ≤ 0.9 V at IF = 10 mA; enables use as low-drop clamp in series protection paths. |
| Total Power Dissipation (Ptot) | 590 mW at Tamb ≤ 25 °C on FR4 PCB; defines maximum continuous DC power before thermal derating. |
| Junction Temperature (Tj) | 150 °C absolute max; constrains ambient operating range when mounted with 210 K/W Rth(j-sp). |
Pinout & Package
SOD123 surface-mount plastic package: 2-terminal, flat lead, cathode marked by bar; dimensions 1.7 mm × 3.75 mm × 1.3 mm, 0.7 mm lead pitch, designed for reflow soldering only.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; marking bar identifies this terminal for correct PCB orientation. |
| 2 | Anode (A) | Connected to ground or lower-potential rail; reverse-biased operation requires this terminal at lower voltage than cathode. |
Key Features
| Feature | Design Value |
|---|---|
| Wide Zener voltage range | 2.4–75 V in E24 steps enables single-family coverage for diverse supply rail needs. |
| Low differential resistance | As low as 10 Ω for higher-voltage variants improves regulation accuracy under dynamic load changes. |
| Small SMD footprint | SOD123 package occupies < 7 mm² PCB area, supporting high-density layout in space-constrained devices. |
| Controlled temperature coefficient | –3.5 to +7.0 mV/K range allows selection of near-zero-drift variants (e.g., 6.2–6.8 V types) for precision references. |
| Non-repetitive surge rating | 40 W peak reverse power (100 μs pulse) supports transient suppression in low-energy ESD events. |
Applications
| Power Supply Reference | Overvoltage Clamp |
|---|---|
|
Use Scenario: Providing stable 3.3 V reference for ADC voltage dividers or op-amp bias networks in battery-powered IoT sensors. IC Role / Device Role / Timing Role: Zener diode acts as two-terminal shunt regulator, sinking excess current to hold node voltage at 3.3 V ±5 %. Use Value: Enables 12-bit ADC accuracy without external voltage reference IC, reducing BOM count and quiescent current. |
Use Scenario: Protecting microcontroller GPIO pins from 5 V rail transients in USB-powered peripherals. IC Role / Device Role / Timing Role: Clamping device connected between I/O line and ground, conducting above 3.3 V to limit voltage excursion. Use Value: Limits pin voltage to ≤3.5 V during 100 ns surges, preventing latch-up while adding <0.5 mm² PCB area. |
| LED Current Bias | Signal Level Shifting |
|
Use Scenario: Setting constant current for indicator LEDs in industrial HMI panels with 12 V supply rails. IC Role / Device Role / Timing Role: Zener + series resistor forms simple current source; diode regulates voltage drop across resistor. Use Value: Achieves ±8 % LED brightness consistency across temperature (–40 to +85 °C) using only two passive components. |
Use Scenario: Translating 3.3 V logic signals to 5 V domains in mixed-voltage FPGA interfaces. IC Role / Device Role / Timing Role: Cathode tied to 5 V rail, anode drives signal line; conducts when input exceeds 3.3 V + VF. Use Value: Provides sub-10 ns response for level shifting without active buffers, preserving signal integrity up to 10 MHz. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5226BS-7-F | Same 3.3 V ±5 % rating but SOT-23 package; 350 mW Ptot, 600 Ω rdif, automotive-qualified (AEC-Q200). | Requires different footprint and offers higher reliability for automotive ECUs; not suitable for space-constrained consumer PCBs using SOD123. | Select when AEC-Q200 compliance is mandatory and board area permits SOT-23 placement. |
| BZX384-C3V3 | 3.3 V ±5 % in SOD-323; 300 mW Ptot, 95 Ω rdif, tighter 2 % tolerance option available. | Smaller 1.3 × 1.7 mm package reduces area by 55 % but lowers power handling; better for ultra-portable wearables. | Select when minimal footprint is critical and 300 mW dissipation suffices for the target bias current. |
Compared with MMBZ5226BS-7-F and BZX384-C3V3, BZT52-C3V3J provides optimal balance of power capability (590 mW), thermal performance (210 K/W Rth(j-sp)), and SOD123 manufacturability for cost-sensitive industrial and consumer designs where automotive qualification is unnecessary.
Availability
BZT52-C3V3J is available at Aetrix Electronics and suitable for power supply reference, overvoltage clamp, and LED current bias applications requiring stable component supply and SOD123 footprint compatibility.
Supply support for BZT52-C3V3J 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 semiconductor expert focused on high-volume, high-reliability discrete and logic devices, headquartered in Nijmegen, Netherlands.
The BZT52 series targets general-purpose voltage regulation in consumer, industrial, and computing applications, emphasizing SMD manufacturability, wide voltage coverage, and consistent parametric performance across production lots.
FAQ
What is the maximum continuous reverse current the BZT52-C3V3J can handle at 3.3 V?
The device is rated for 5 mA Zener test current (IZ = 5 mA) and has a maximum forward current (IF) of 250 mA, but continuous reverse conduction is limited by power dissipation: at 3.3 V, max steady-state current is 179 mA (590 mW ÷ 3.3 V), assuming Tamb ≤ 25 °C and proper PCB thermal design.
Does the BZT52-C3V3J meet automotive AEC-Q200 requirements?
No - per Rev. 2 (October 2025) datasheet Section 13, BZT52-C3V3J is explicitly designated as non-automotive qualified; Nexperia offers separate -Q suffix variants (e.g., BZT52-C3V3J-Q) for automotive applications, which undergo additional stress testing and screening.
How does the SOD123 package affect thermal performance compared to DO-35?
SOD123 achieves 210 K/W junction-to-solder-point thermal resistance with a 1 cm² cathode pad, versus ~300 K/W for axial DO-35 in free air; this 30 % improvement enables 1.4× higher power handling in PCB-mounted designs, critical for sustained regulation loads.
Can BZT52-C3V3J be used in parallel for higher current capability?
No - Zener diodes exhibit manufacturing spread in VZ; paralleling units causes current hogging, where the lowest-VZ unit carries disproportionate current and risks thermal runaway. Use a single higher-power Zener or active regulation for >590 mW needs.
BZT52-C3V3J Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SOD-123
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 3.3 V
- Tolerance:
- ±6.1%
- Power - Max:
- 350 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:
- -55°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123
BZT52-C3V3J FAQ
1.How can I place an order for BZT52-C3V3J through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52-C3V3J 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 BZT52-C3V3J reliable?
The price and inventory of BZT52-C3V3J are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52-C3V3J is usually 5 days.
3.What payment methods are accepted for BZT52-C3V3J?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52-C3V3J transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52-C3V3J?
BZT52-C3V3J orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52-C3V3J 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 BZT52-C3V3J?
For technical support, including BZT52-C3V3J datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52-C3V3J requirements.
6.How does Aetrix verify that BZT52-C3V3J is sourced from the original manufacturer or authorized distributors?
All BZT52-C3V3J 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 BZT52-C3V3J meets industry standards.
7.What is the process for return or replacement of BZT52-C3V3J?
All BZT52-C3V3J units undergo pre-shipment inspection (PSI). If there is an issue with BZT52-C3V3J, 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 BZT52-C3V3J part is unused and in its original packaging.
Return procedure for BZT52-C3V3J:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZT52-C3V3J Tags
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