Nexperia USA Inc. BZT5250H-C5V6X
- Part No.:
- BZT5250H-C5V6X
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT5250H-C5V6X.pdf
- Description:
- DIODE ZENER 5.6V 375MW SOD123F
- Quantity:
- Payment:

- Shipping:

Inventory:4,461
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Product details
Overview
BZT5250H-C5V6X from Nexperia is a low-current Zener diode in SOD123F package, providing precise 5.6 V regulation at 50 µA test current with ±5 % tolerance, 400 Ω differential resistance at 5 mA, and -2.0 mV/K temperature coefficient-ideal for voltage reference and biasing in portable battery-powered sensor nodes and microcontroller reset circuits.
For engineers reviewing the BZT5250H-C5V6X datasheet, BZT5250H-C5V6X pinout, BZT5250H-C5V6X application, or BZT5250H-C5V6X equivalent, this page delivers verified Zener voltage, thermal resistance, leakage behavior, package dimensions, and direct alternatives for low-power analog and digital supply rail stabilization.
Technical Context
This Zener operates in reverse breakdown mode with specified regulation at IZ = 50 µA, enabling ultra-low quiescent current design. Its intentional minor leakage rise (per AN90031) reduces noise and improves switching transients in feedback paths.
The device exhibits a negative temperature coefficient of -2.0 mV/K at 5.6 V, ensuring predictable drift over -55 °C to +150 °C ambient range. Thermal resistance from junction to solder point is 150 K/W on standard FR4 PCB, supporting stable operation under intermittent load conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 5.32 V to 5.88 V at IZ = 50 µA - defines tight regulation window for precision reference use |
| Differential Resistance rdiff | 400 Ω at IZ = 5 mA - determines output impedance and load regulation sensitivity |
| Temperature Coefficient SZ | -2.0 mV/K - quantifies voltage drift per degree Celsius, critical for temperature-stable references |
| Forward Voltage VF | ≤ 0.9 V at IF = 10 mA - ensures minimal forward conduction loss in dual-direction protection schemes |
| Total Power Dissipation Ptot | 830 mW at Tamb ≤ 25 °C with 1 cm² cathode pad - sets maximum continuous power handling on standard PCB |
| Junction-to-Ambient Rth(j-a) | 330 K/W in free air - informs derating requirements for unmounted or low-airflow environments |
| Reverse Current IR | ≤ 2.0 µA at VR = 4.0 V - confirms low leakage below knee voltage for standby power integrity |
Pinout & Package
SOD123F surface-mount plastic package: 2.6 mm × 1.6 mm × 1.1 mm body, flat leads, cathode marked by bar.
| 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; forms reverse-biased junction for Zener operation |
Key Features
| Feature | Design Value |
|---|---|
| Low-test-current regulation | Specified at 50 µA - enables use in nanoamp-level bias networks without compromising accuracy |
| Optimized leakage profile | Intentional minor IR rise per AN90031 - reduces high-frequency noise and improves transient response in feedback loops |
| Small-form-factor SMD | SOD123F footprint - supports high-density PCB layouts and automated assembly with 0.55 mm lead pitch |
| Wide operating temperature | -55 °C to +150 °C junction range - suitable for industrial and extended-temperature embedded applications |
| Two tolerance options | ±5 % (C-series) and ±2 % (B-series) - allows cost/performance trade-off selection for reference vs. general-purpose use |
Applications
| Microcontroller Reset Circuit | Portable Sensor Bias Reference |
|---|---|
Use Scenario: Provides stable 5.6 V threshold for reset ICs in battery-powered IoT edge nodes. IC Role / Device Role / Timing Role: Zener voltage reference defining reset assertion level during brown-out conditions. Use Value: Low 50 µA test current minimizes battery drain while maintaining ±5 % accuracy across temperature. |
Use Scenario: Supplies bias voltage to op-amp input stages in wearable health monitors. IC Role / Device Role / Timing Role: Low-noise voltage reference for analog front-end signal conditioning. Use Value: Intentional leakage optimization per AN90031 suppresses switching noise in sensitive analog paths. |
| USB-C Power Negotiation Clamp | Industrial PLC Input Protection |
Use Scenario: Clamps CC line voltage during USB PD communication to prevent overvoltage damage. IC Role / Device Role / Timing Role: Fast-response Zener clamp limiting signal rail to 5.6 V during hot-plug events. Use Value: 400 Ω dynamic impedance ensures rapid clamping without excessive overshoot or ringing. |
Use Scenario: Protects 24 V digital input channels against transients in factory automation systems. IC Role / Device Role / Timing Role: Low-leakage shunt regulator absorbing surge energy before downstream logic. Use Value: 830 mW total dissipation rating supports short-duration surges up to 40 W peak (100 µs). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZT52-C5V6 | Same 5.6 V nominal, ±5 % tolerance, but rated at 500 mW Ptot and uses SOD-123 (not SOD123F) package | Larger thermal pad requirement; higher rdiff (500 Ω) reduces regulation precision under load | Select when legacy footprint compatibility is required and power dissipation remains below 500 mW |
| MMSZ5232BT1G | 5.6 V, ±5 %, 500 mW, SOD-123 package; 700 Ω rdiff at 20 mA; no intentional leakage optimization | Higher forward voltage (1.1 V), less stable tempco (-2.5 mV/K), unsuitable for low-noise analog references | Choose only for cost-sensitive, non-critical regulation where noise and precision are secondary |
Compared with BZT5250H-C5V6X, BZT52-C5V6 offers identical voltage spec but reduced power margin and older package thermal performance, while MMSZ5232BT1G trades precision and noise control for broader distributor availability at lower unit cost.
Availability
BZT5250H-C5V6X is available at Aetrix Electronics and suitable for portable sensor biasing, microcontroller reset circuits, USB-C interface clamping, and industrial PLC input protection requiring stable component supply and guaranteed long-term sourcing.
Supply support for BZT5250H-C5V6X 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 BZT5250H series belongs to Nexperia's low-current Zener portfolio, engineered specifically for battery-constrained and noise-sensitive applications where regulation at microamp-level test currents is essential.
FAQ
What is the exact Zener voltage tolerance for BZT5250H-C5V6X?
The "C" suffix denotes ±5 % tolerance, meaning the measured Zener voltage at IZ = 50 µA falls between 5.32 V and 5.88 V. This is confirmed in Table 8 of the datasheet under "BZT5250H-C5V6" entry, with min/max values explicitly listed.
Can BZT5250H-C5V6X be used in place of a 5.1 V Zener?
No-it is not a drop-in replacement for 5.1 V Zeners. Its nominal voltage is 5.6 V with a 5.32–5.88 V range; substituting it for a 5.1 V part would raise the regulated voltage by ~10 %, potentially violating downstream IC absolute maximum ratings or altering circuit thresholds.
Does the SOD123F package require special reflow profile considerations?
Yes-the datasheet specifies reflow soldering as the only recommended method. The footprint in Figure 10 mandates precise 2.8 mm × 1.2 mm solder land dimensions and 0.55 mm lead pitch alignment; wave soldering or hand-soldering risks thermal damage due to the thin leadframe and low thermal mass.
How does the "intentional minor rise of leakage current" affect circuit design?
Per AN90031, this controlled leakage improves high-frequency noise suppression and transient response in feedback networks. It does not increase steady-state power draw significantly but enhances stability in op-amp reference buffers and LDO error amplifiers where conventional Zeners exhibit oscillation.
BZT5250H-C5V6X 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):
- 5.6 V
- Tolerance:
- ±5%
- Power - Max:
- 375 mW
- Impedance (Max) (Zzt):
- 40 Ohms
- Current - Reverse Leakage @ Vr:
- 2 µA @ 4 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-C5V6X FAQ
1.How can I place an order for BZT5250H-C5V6X through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT5250H-C5V6X 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-C5V6X reliable?
The price and inventory of BZT5250H-C5V6X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT5250H-C5V6X is usually 5 days.
3.What payment methods are accepted for BZT5250H-C5V6X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT5250H-C5V6X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT5250H-C5V6X?
BZT5250H-C5V6X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT5250H-C5V6X 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-C5V6X?
For technical support, including BZT5250H-C5V6X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT5250H-C5V6X requirements.
6.How does Aetrix verify that BZT5250H-C5V6X is sourced from the original manufacturer or authorized distributors?
All BZT5250H-C5V6X 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-C5V6X meets industry standards.
7.What is the process for return or replacement of BZT5250H-C5V6X?
All BZT5250H-C5V6X units undergo pre-shipment inspection (PSI). If there is an issue with BZT5250H-C5V6X, 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-C5V6X part is unused and in its original packaging.
Return procedure for BZT5250H-C5V6X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZT5250H-C5V6X Tags

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