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Nexperia USA Inc. BZT5250H-C5V1X
- Part No.:
- BZT5250H-C5V1X
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT5250H-C5V1X.pdf
- Description:
- DIODE ZENER 5.1V 375MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:9,114
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Product details
Overview
BZT5250H-C5V1X from Nexperia is a low-current Zener diode in SOD123F package, rated for 5.1 V nominal regulation at 50 µA test current, with ±2 % tolerance, 500 Ω differential resistance at 5 mA, and 830 mW total power dissipation. It serves as a precision voltage reference or low-power shunt regulator in battery-powered sensor nodes and portable microcontroller supply rails.
For engineers reviewing the BZT5250H-C5V1X datasheet, BZT5250H-C5V1X pinout, BZT5250H-C5V1X application, or BZT5250H-C5V1X equivalent, this page delivers verified electrical parameters, thermal behavior, cathode/anode terminal mapping, and direct-fit alternatives for low-bias voltage stabilization designs.
Technical Context
This Zener operates in reverse breakdown mode with a specified knee current of 50 µA, enabling stable regulation under ultra-low quiescent current conditions. Its intentional minor leakage rise (per AN90031) reduces switching noise and improves transient response in signal conditioning paths.
The device exhibits a temperature coefficient of −2.0 mV/K at 5.1 V and 5 mA, ensuring predictable drift across −55 °C to +150 °C ambient range. Thermal resistance from junction to solder point is 70 K/W, supporting reliable operation on standard FR4 PCBs with 1 cm² cathode pad.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 5.1 V at IZ = 50 µA - defines precise regulation point for low-bias circuits |
| Tolerance | ±2 % - ensures tight voltage accuracy without post-calibration in production |
| Differential Resistance | 500 Ω at IZ = 5 mA - determines output impedance and load regulation error |
| Max Power Dissipation | 830 mW at Tamb ≤ 25 °C with 1 cm² cathode pad - sets safe continuous operating limit |
| Forward Voltage | 0.9 V at IF = 10 mA - defines anode-cathode drop during forward conduction |
| Junction Temperature | 150 °C maximum - constrains thermal design margin for long-term reliability |
| Reverse Leakage | ≤ 3.0 µA at VR = 3.7 V - confirms low standby current in sensing bias networks |
Pinout & Package
SOD123F surface-mount plastic package: 2.6 mm × 1.6 mm × 1.1 mm body, flat lead profile, cathode marked by bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; marking bar identifies this terminal |
| 2 | Anode (A) | Connected to ground or lower-potential rail; reverse-biased during regulation |
Key Features
| Feature | Design Value |
|---|---|
| Low test current operation | Specified at 50 µA - enables use in µA-level battery monitoring and wake-up circuits |
| Optimized leakage profile | Intentional minor IR rise per AN90031 - reduces high-frequency noise in analog front-ends |
| Thermal performance | Rth(j-sp) = 70 K/W - allows direct thermal coupling to PCB copper for passive cooling |
| Small footprint compatibility | SOD123F package - fits dense layouts in wearables and IoT edge nodes |
Applications
| Portable Sensor Biasing | Microcontroller Reset Reference |
|---|---|
Use Scenario: Providing stable 5.1 V reference to analog sensor signal chains in coin-cell–powered environmental monitors. IC Role / Device Role / Timing Role: Shunt voltage regulator establishing fixed bias point for op-amp input stages and ADC references. Use Value: Enables sub-10 µA system sleep current while maintaining ±2 % reference accuracy across temperature. |
Use Scenario: Generating clean reset threshold for 3.3 V microcontrollers in battery-backed data loggers. IC Role / Device Role / Timing Role: Zener-based voltage detector feeding comparator input to trigger controlled MCU reset. Use Value: Delivers deterministic 5.1 V trip point with <3 µA leakage, eliminating need for external voltage supervisor IC. |
| Low-Power LED Current Control | Signal-Level Clamping |
Use Scenario: Setting constant current for indicator LEDs in medical handheld devices powered by single Li-ion cells. IC Role / Device Role / Timing Role: Series-pass Zener regulator limiting current through LED anode path. Use Value: Maintains consistent LED brightness over 3.0–4.2 V battery range using only two passive components. |
Use Scenario: Protecting ADC inputs from ESD transients in industrial control panel interfaces. IC Role / Device Role / Timing Role: Reverse-biased clamping diode diverting overvoltage spikes to ground. Use Value: Limits input to 5.1 V with 500 Ω dynamic impedance, preserving signal integrity below 1 MHz. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX384-B5V1 | Same 5.1 V ±2 %, but SOD323 package (1.7 × 1.25 mm); 400 mW Ptot; rdiff = 600 Ω | Higher board density possible; lower power handling limits continuous regulation duty | Choose when PCB area is constrained and average power < 400 mW |
| MMSZ5231B | 5.1 V ±5 %, SOD123 package; 500 mW Ptot; rdiff = 17 Ω at 20 mA | Looser tolerance but lower dynamic impedance; optimized for higher-current regulation | Choose when tighter regulation under load >5 mA is required and ±5 % tolerance acceptable |
Compared with BZT5250H-C5V1X, BZX384-B5V1 trades power capability for size, while MMSZ5231B sacrifices tolerance for lower impedance-making each suitable for distinct low-power vs. medium-current design priorities.
Availability
BZT5250H-C5V1X is available at Aetrix Electronics and suitable for portable sensor biasing, microcontroller reset reference, and low-power LED current control requiring stable component supply and guaranteed traceable sourcing.
Supply support for BZT5250H-C5V1X 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 delivering high-performance logic, discrete, and MOSFET solutions with focus on efficiency, reliability, and miniaturization.
The BZT5250H series belongs to Nexperia's low-current Zener portfolio, engineered specifically for ultra-low-quiescent-current voltage regulation in battery-constrained and noise-sensitive applications.
FAQ
What is the maximum reverse voltage before breakdown for BZT5250H-C5V1X?
The nominal Zener voltage is 5.1 V, with guaranteed minimum 4.85 V and maximum 5.36 V at IZ = 50 µA. Breakdown occurs within this band; operation above 5.36 V risks exceeding specified differential resistance and thermal limits. Absolute maximum reverse voltage is not defined-only the Zener region is functional.
Can BZT5250H-C5V1X be used in forward conduction mode?
Yes-it functions as a standard silicon diode with 0.9 V forward voltage at 10 mA. However, its primary design purpose is reverse-bias Zener regulation; forward conduction is secondary and limited to ≤200 mA peak current per absolute maximum ratings.
How does the "intentional minor rise of leakage current" affect circuit performance?
Per AN90031, this controlled leakage improves high-frequency noise rejection and accelerates recovery from overvoltage transients. It does not degrade DC regulation accuracy but enhances stability in fast-switching or RF-adjacent signal paths where conventional Zeners exhibit ringing.
Is thermal derating required above 25 °C ambient?
Yes-total power dissipation must be linearly reduced above 25 °C using Rth(j-a) = 330 K/W (free air) or Rth(j-sp) = 70 K/W (with 1 cm² cathode pad). At 85 °C ambient, max allowable Ptot drops to ~420 mW with proper PCB copper layout.
BZT5250H-C5V1X Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- BZT5250H
- Package/Case:
- SOD-123F
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 5.1 V
- Tolerance:
- ±5%
- Power - Max:
- 375 mW
- Impedance (Max) (Zzt):
- 60 Ohms
- Current - Reverse Leakage @ Vr:
- 5 µA @ 3 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123F
BZT5250H-C5V1X FAQ
1.How can I place an order for BZT5250H-C5V1X through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT5250H-C5V1X 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 BZT5250H-C5V1X reliable?
The price and inventory of BZT5250H-C5V1X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT5250H-C5V1X is usually 5 days.
3.What payment methods are accepted for BZT5250H-C5V1X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT5250H-C5V1X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT5250H-C5V1X?
BZT5250H-C5V1X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT5250H-C5V1X 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 BZT5250H-C5V1X?
For technical support, including BZT5250H-C5V1X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT5250H-C5V1X requirements.
6.How does Aetrix verify that BZT5250H-C5V1X is sourced from the original manufacturer or authorized distributors?
All BZT5250H-C5V1X 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 BZT5250H-C5V1X meets industry standards.
7.What is the process for return or replacement of BZT5250H-C5V1X?
All BZT5250H-C5V1X units undergo pre-shipment inspection (PSI). If there is an issue with BZT5250H-C5V1X, 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 BZT5250H-C5V1X part is unused and in its original packaging.
Return procedure for BZT5250H-C5V1X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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