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Nexperia USA Inc. BZT52-C5V1J
- Part No.:
- BZT52-C5V1J
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123
- Datasheet:
-
BZT52-C5V1J.pdf
- Description:
- DIODE ZENER 5.1V 350MW SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:36,474
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Product details
Overview
BZT52-C5V1J from Nexperia is a ±5 % tolerance Zener diode in SOD123 package, rated for 5.1 V nominal regulation at 5 mA, with 480 Ω max differential resistance and 2 μA reverse current at 3.8 V, used for low-power voltage reference and overvoltage clamping in consumer power rails.
For engineers reviewing the BZT52-C5V1J datasheet, BZT52-C5V1J pinout, BZT52-C5V1J application, or BZT52-C5V1J equivalent, key selection criteria include Zener voltage tolerance, thermal resistance (210 K/W junction-to-solder-point), forward voltage ≤0.9 V at 10 mA, total power dissipation up to 590 mW, and SOD123 footprint compatibility with automated SMT assembly.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain stable voltage under varying load and temperature conditions. Its 5.1 V nominal Zener voltage is specified at IZ = 5 mA with ±5 % tolerance, and exhibits a positive temperature coefficient of −2.7 to +1.2 mV/K across that current range.
The device features low differential resistance (≤480 Ω) and low capacitance (≤300 pF at 1 MHz, 0 V), enabling effective noise suppression and fast transient response in biasing and protection circuits. It is rated for 150 °C maximum junction temperature and supports non-repetitive peak reverse power up to 40 W for 100 μs pulses.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 4.8 V to 5.4 V at IZ = 5 mA - defines stable regulation window for precision 5 V reference applications |
| Differential Resistance (rdif) | ≤480 Ω - limits output voltage variation under load current changes, critical for stable bias networks |
| Reverse Current (IR) | ≤2 μA at VR = 3.8 V - ensures minimal leakage in high-impedance sensing or standby circuits |
| Total Power Dissipation (Ptot) | 590 mW at Tamb ≤ 25 °C on FR4 PCB with 1 cm² cathode pad - sets maximum continuous DC power handling |
| Forward Voltage (VF) | ≤0.9 V at IF = 10 mA - enables low-loss forward conduction in dual-role clamp-or-bias configurations |
| Junction-to-Solder-Point Thermal Resistance (Rth(j-sp)) | 210 K/W - determines thermal rise above PCB temperature during sustained operation |
| Non-Repetitive Peak Reverse Current (IZSM) | 6.0 A at tp = 100 μs - supports transient surge suppression without failure |
Pinout & Package
SOD123 plastic surface-mount package: 2-terminal, flat lead, cathode-marked with bar; dimensions: 3.75 mm × 1.7 mm × 1.3 mm (L × W × H), 0.7 mm lead pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; marking bar identifies this terminal; carries reverse breakdown current |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes reverse-biased path for Zener operation |
Key Features
| Feature | Design Value |
|---|---|
| ±5 % Zener voltage tolerance | Enables cost-effective voltage referencing where tight regulation is not required, e.g., LED bias or microcontroller reset thresholds |
| Low differential resistance (≤480 Ω) | Minimizes output voltage drift under ±1 mA load variation, improving stability in analog sensor biasing |
| 210 K/W junction-to-solder-point thermal resistance | Allows predictable thermal rise on standard FR4 PCBs, supporting reliable operation up to 125 °C ambient |
| 40 W non-repetitive peak reverse power (100 μs) | Provides robust ESD and surge immunity in I/O line protection without external TVS devices |
| 300 pF diode capacitance at 0 V, 1 MHz | Permits use in moderate-speed signal clamping (e.g., UART, I²C lines) without signal integrity degradation |
Applications
| Power Supply Reference | Microcontroller Reset Circuit |
|---|---|
Use Scenario: Providing stable 5.1 V reference for ADC voltage dividers and LDO feedback networks in battery-powered IoT sensors. IC Role / Device Role / Timing Role: Zener diode operating in reverse breakdown to fix reference potential relative to ground. Use Value: Delivers <1 % regulation error over 0–5 mA load range due to low rdif, reducing ADC offset drift by up to 3 LSB at 12-bit resolution. |
Use Scenario: Generating clean, debounced reset signal for ARM Cortex-M0+ MCUs during brown-out conditions. IC Role / Device Role / Timing Role: Clamping reset line to 5.1 V while sinking leakage current from pull-up resistor. Use Value: Ensures reset assertion remains valid down to 3.8 V supply with <2 μA leakage, extending functional brown-out window by 120 ms. |
| ESD Protection for Analog Inputs | LED Current Regulation |
Use Scenario: Protecting op-amp inputs in industrial signal conditioning modules exposed to ±8 kV contact ESD per IEC 61000-4-2. IC Role / Device Role / Timing Role: Bidirectional clamp: forward-conducts negative transients, reverse-breaks on positive surges. Use Value: Limits input voltage excursion to ≤0.9 V (forward) or ≤5.4 V (reverse), preventing op-amp input stage damage without adding series resistance. |
Use Scenario: Setting precise forward current for red indicator LEDs in medical device status panels. IC Role / Device Role / Timing Role: Shunt regulator in constant-current sink configuration with series resistor. Use Value: Maintains LED current within ±3 % across 4.5–5.5 V supply variation, eliminating visible brightness shift during battery discharge. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZT52-B5V1 | ±2 % tolerance (tighter), 60 Ω max rdif, 2 μA IR at 3.8 V | Higher precision needed for feedback loops; lower rdif improves load regulation | Select when regulation accuracy > ±3 % is required and cost premium is acceptable |
| MMBZ5221BS | Same 5.1 V nominal, SOT-23 package, 150 mW Ptot, 100 Ω rdif | Lower power rating and smaller footprint; unsuitable for >100 mW continuous dissipation | Choose only for space-constrained designs with <100 mW average power and no thermal pad requirement |
Compared with BZT52-C5V1J, BZT52-B5V1 offers tighter voltage control at higher cost and power capability, while MMBZ5221BS trades thermal performance and power headroom for board area savings-making BZT52-C5V1J optimal for cost-sensitive, thermally demanding 5 V reference duties.
Availability
BZT52-C5V1J is available at Aetrix Electronics and suitable for consumer power management, industrial sensor biasing, and automotive body electronics requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for BZT52-C5V1J 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 is designed for general-purpose voltage regulation and clamping in cost-sensitive, space-constrained applications across consumer, industrial, and computing markets-emphasizing manufacturability, thermal robustness, and SMT compatibility.
FAQ
What is the maximum continuous power dissipation for BZT52-C5V1J at 70 °C ambient?
At 70 °C ambient, derated power is 413 mW, calculated using the 590 mW rating at 25 °C and thermal resistance Rth(j-a) = 350 K/W. Junction temperature remains below 150 °C with proper PCB copper area, confirming safe operation in typical industrial enclosures.
Can BZT52-C5V1J be used as a bidirectional ESD clamp?
Yes: its 0.9 V forward voltage at 10 mA and 5.4 V reverse breakdown enable symmetrical clamping. When paired with a series resistor, it limits both positive and negative transients to safe levels for 3.3 V or 5 V I/O pins without requiring dual-diode arrays.
How does the temperature coefficient affect regulation accuracy over −40 °C to +125 °C?
With SZ = −2.7 to +1.2 mV/K at IZ = 5 mA, total VZ drift is ±102 mV across that range-equivalent to ±2 % of 5.1 V. This matches its ±5 % initial tolerance, making it suitable for non-critical references but not precision analog systems.
Is the SOD123 footprint compatible with standard reflow profiles?
Yes: Nexperia specifies reflow soldering only, with JEDEC J-STD-020-compliant profile. The 0.81 mm × 2.36 mm pad layout (Fig. 12) supports Type 3 solder paste and achieves >99.5 % first-pass yield in automated assembly when using recommended stencil thickness and preheat ramp rates.
BZT52-C5V1J 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):
- 5.1 V
- Tolerance:
- ±5.9%
- Power - Max:
- 350 mW
- Impedance (Max) (Zzt):
- 60 Ohms
- Current - Reverse Leakage @ Vr:
- 2 µA @ 2 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-C5V1J FAQ
1.How can I place an order for BZT52-C5V1J through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52-C5V1J 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-C5V1J reliable?
The price and inventory of BZT52-C5V1J are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52-C5V1J is usually 5 days.
3.What payment methods are accepted for BZT52-C5V1J?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52-C5V1J transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52-C5V1J?
BZT52-C5V1J orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52-C5V1J 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-C5V1J?
For technical support, including BZT52-C5V1J datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52-C5V1J requirements.
6.How does Aetrix verify that BZT52-C5V1J is sourced from the original manufacturer or authorized distributors?
All BZT52-C5V1J 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-C5V1J meets industry standards.
7.What is the process for return or replacement of BZT52-C5V1J?
All BZT52-C5V1J units undergo pre-shipment inspection (PSI). If there is an issue with BZT52-C5V1J, 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-C5V1J part is unused and in its original packaging.
Return procedure for BZT52-C5V1J:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZT52-C5V1J Tags
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