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Nexperia USA Inc. BZT52-C3V0J
- Part No.:
- BZT52-C3V0J
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123
- Datasheet:
-
BZT52-C3V0J.pdf
- Description:
- DIODE ZENER 3V 350MW SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:14,244
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Product details
Overview
BZT52-C3V0J from Nexperia is a ±5 % tolerance Zener diode in SOD123 package, rated for 3.0 V nominal Zener voltage at 5 mA, with 500 Ω max differential resistance and 10 μA reverse current at 2.8 V, used for precision voltage reference and low-power regulation in space-constrained PCBs.
For engineers reviewing the BZT52-C3V0J datasheet, BZT52-C3V0J pinout, BZT52-C3V0J application, or BZT52-C3V0J equivalent, this page delivers verified electrical specs, thermal behavior, cathode/anode terminal mapping, real-world use cases, and validated alternative parts - all grounded in Nexperia's Rev. 2 (Oct 2025) product data sheet.
Technical Context
This Zener diode operates in reverse breakdown to maintain stable voltage under varying load and temperature conditions. Its 3.0 V nominal Zener voltage is specified at IZ = 5 mA, with temperature coefficient of –3.5 to 0.0 mV/K and low 500 Ω differential resistance ensuring tight regulation across operating current range.
Designed for surface-mount applications on FR4 PCBs, it supports up to 590 mW total power dissipation at Tamb ≤ 25 °C with 1 cm² cathode pad, and exhibits 55 K/W junction-to-solder-point thermal resistance - critical for thermal management in compact power rails and bias networks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 3.0 V nominal at IZ = 5 mA; ±5 % tolerance ensures predictable clamping in 3.3 V rail monitoring and reference circuits. |
| Differential Resistance (rdif) | ≤ 500 Ω at IZ = 5 mA; low impedance maintains voltage stability against load current variations. |
| Reverse Current (IR) | ≤ 10 μA at VR = 2.8 V; enables low-leakage operation in battery-backed or ultra-low-power sensing nodes. |
| Forward Voltage (VF) | ≤ 0.9 V at IF = 10 mA; allows efficient forward conduction during polarity protection or ESD clamp configurations. |
| Total Power Dissipation (Ptot) | 590 mW at Tamb ≤ 25 °C with 1 cm² cathode pad; defines maximum continuous DC power handling in standard PCB layouts. |
| Junction Temperature (Tj) | –55 °C to +150 °C operating range; supports industrial and extended-temperature embedded systems without derating. |
Pinout & Package
SOD123 plastic surface-mounted package: 2-terminal, flat lead, small outline; cathode marked by bar; dimensions: 3.75 mm × 1.7 mm × 1.3 mm (L × W × H); compatible with standard reflow soldering per IPC-J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; marking bar identifies this terminal; carries reverse breakdown current during Zener operation. |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes reverse-biased path enabling voltage clamping at VZ. |
Key Features
| Feature | Design Value |
|---|---|
| ±5 % Zener voltage tolerance | Enables cost-effective selection for non-critical 3.0 V references where tighter tolerance is unnecessary. |
| Low differential resistance (≤500 Ω) | Minimizes output voltage shift under ±1 mA load variation - essential for stable biasing in op-amp feedback networks. |
| Small SOD123 footprint | Reduces PCB area by >40 % vs. DO-35; supports high-density layout in portable and IoT edge devices. |
| 150 °C max junction temperature | Permits operation in thermally aggressive environments such as automotive under-hood modules or industrial motor drives. |
Applications
| Power Supply Rail Clamping | Microcontroller Reset Circuit |
|---|---|
|
Use Scenario: Clamp 3.3 V supply rail against transient overvoltage events in low-power MCU subsystems. IC Role / Device Role / Timing Role: Zener acts as shunt regulator, diverting excess current when rail exceeds 3.0 V + tolerance. Use Value: Prevents latch-up or brown-out in ARM Cortex-M0+ cores by holding reset logic high until rail stabilizes within spec. |
Use Scenario: Generate clean, temperature-stable reset signal for STM32L4 microcontrollers during power-up. IC Role / Device Role / Timing Role: Provides precise 3.0 V threshold for external reset supervisor IC or RC-based reset generator. Use Value: Ensures deterministic reset assertion at 3.0 V ±0.15 V, eliminating spurious resets caused by supply ripple or cold-start drift. |
| ADC Reference Stabilization | LED Current Bias Network |
|
Use Scenario: Stabilize 3.0 V reference for 12-bit SAR ADC in sensor signal conditioning front-end. IC Role / Device Role / Timing Role: Supplies low-noise, low-drift voltage reference to ADC VREF pin via series resistor. Use Value: Limits reference error to <0.5 LSB over –40 °C to +85 °C due to matched temperature coefficient and low rdif. |
Use Scenario: Set constant bias current for red indicator LED in industrial HMI panel with 5 V supply. IC Role / Device Role / Timing Role: Functions as voltage reference in emitter-degenerated BJT current source configuration. Use Value: Delivers ±2 % LED brightness consistency across 10–100 mA drive range, independent of supply fluctuations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor MMBZ5222BS | Same 3.0 V nominal, ±5 %, SOD-123, but higher rdif (700 Ω max) and lower Ptot (350 mW). | Less suitable for dynamic load regulation; acceptable only in static reference or low-current bias roles. | Select when legacy ON Semi BOM alignment is required and thermal headroom is ample. |
| Vishay BZX84-C3V0 | Same 3.0 V/±5 %, but SOT-23 package (higher thermal resistance: 350 K/W vs. 210 K/W), and 350 mW Ptot. | Higher self-heating under identical load; unsuitable for continuous 10 mA operation without derating. | Prefer only if SOT-23 footprint is mandated and power dissipation remains below 150 mW. |
Compared with MMBZ5222BS and BZX84-C3V0, BZT52-C3V0J offers superior thermal performance (210 K/W Rth(j-sp)) and lower differential resistance, enabling more stable regulation in compact, thermally constrained designs without sacrificing power margin.
Availability
BZT52-C3V0J is available at Aetrix Electronics and suitable for power supply clamping, microcontroller reset generation, ADC reference stabilization, and LED bias network applications requiring stable component supply and consistent parametric performance across production batches.
Supply support for BZT52-C3V0J 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, with leadership in automotive-qualified and industrial-grade components.
The BZT52 series targets general-purpose voltage regulation in cost-sensitive, space-constrained applications - emphasizing manufacturability, thermal robustness, and broad voltage coverage from 2.4 V to 75 V.
FAQ
What is the maximum continuous reverse current the BZT52-C3V0J can handle?
The device supports up to 250 mA forward current (IF), but its continuous reverse (Zener) current is limited by power dissipation: at 3.0 V, maximum steady-state IZ is ~196 mA (590 mW ÷ 3.0 V), assuming Tamb ≤ 25 °C and proper PCB copper area. Derating applies above 25 °C ambient.
Does the BZT52-C3V0J meet automotive qualification standards?
No. Per Nexperia's Rev. 2 datasheet (Oct 2025), the BZT52-C3V0J is explicitly designated as non-automotive qualified. Automotive applications require the –Q variant (e.g., BZT52-C3V0J-Q), which undergoes AEC-Q101 stress testing and has separate qualification documentation.
How does the temperature coefficient affect regulation accuracy over –40 °C to +125 °C?
At IZ = 5 mA, the temperature coefficient ranges from –3.5 mV/K to 0.0 mV/K. Over –40 °C to +125 °C (ΔT = 165 K), worst-case VZ drift is ±578 mV - but actual measured drift is typically <±150 mV due to curvature effects and lower coefficients at mid-temperature. Use with series resistor for current stabilization improves accuracy.
Can BZT52-C3V0J be used in parallel for higher power handling?
No. Zener diodes exhibit negative temperature coefficient and parameter spread; paralleling causes current hogging and thermal runaway. For higher power, use a single higher-rated Zener (e.g., BZT52-C3V3J) or add an external series pass transistor - never parallel multiple BZT52-C3V0J units.
BZT52-C3V0J 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 V
- Tolerance:
- ±6.7%
- Power - Max:
- 350 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:
- -55°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123
BZT52-C3V0J FAQ
1.How can I place an order for BZT52-C3V0J through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52-C3V0J 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-C3V0J reliable?
The price and inventory of BZT52-C3V0J are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52-C3V0J is usually 5 days.
3.What payment methods are accepted for BZT52-C3V0J?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52-C3V0J transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52-C3V0J?
BZT52-C3V0J orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52-C3V0J 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-C3V0J?
For technical support, including BZT52-C3V0J datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52-C3V0J requirements.
6.How does Aetrix verify that BZT52-C3V0J is sourced from the original manufacturer or authorized distributors?
All BZT52-C3V0J 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-C3V0J meets industry standards.
7.What is the process for return or replacement of BZT52-C3V0J?
All BZT52-C3V0J units undergo pre-shipment inspection (PSI). If there is an issue with BZT52-C3V0J, 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-C3V0J part is unused and in its original packaging.
Return procedure for BZT52-C3V0J:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZT52-C3V0J Tags
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MM5Z5V1ST1G
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