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Nexperia USA Inc. BZT5250H-B10X
- Part No.:
- BZT5250H-B10X
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT5250H-B10X.pdf
- Description:
- DIODE ZENER 10V 375MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:8,870
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Product details
Overview
BZT5250H-B10X from Nexperia is a low-current Zener diode in SOD123F package, rated for 10 V nominal Zener voltage at 50 µA test current, with ±5 % tolerance, 830 mW total power dissipation, and 90 Ω typical differential resistance at 5 mA. It serves as a precision voltage reference or low-power regulation element in portable battery-powered circuits where minimal bias current is critical.
For engineers reviewing the BZT5250H-B10X datasheet, BZT5250H-B10X pinout, BZT5250H-B10X application, or BZT5250H-B10X equivalent, this page delivers verified electrical parameters, thermal behavior, SOD123F mounting details, and real-world use cases - all grounded in Nexperia's Rev. 1 (18 July 2024) product data sheet.
Technical Context
This Zener diode operates with a specified test current of 50 µA, enabling stable voltage regulation in ultra-low-power signal conditioning and reference circuits. Its intentional minor leakage current rise improves switching speed and reduces noise, per AN90031.
Thermal resistance from junction to solder point is 150 K/W, and junction-to-ambient is 330 K/W on FR4 PCB - confirming suitability for thermally constrained surface-mount designs without forced cooling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 9.5 V to 10.5 V at IZ = 50 µA - defines tight regulation window for 10 V reference applications |
| Differential Resistance (rdiff) | 150 Ω max at IZ = 5 mA - determines output impedance and load regulation sensitivity |
| Forward Voltage (VF) | 0.9 V max at IF = 10 mA - limits forward conduction loss in bidirectional protection or clamp configurations |
| Total Power Dissipation (Ptot) | 830 mW at Tamb ≤ 25 °C - sets maximum continuous DC or pulsed power handling on standard FR4 layout |
| Reverse Current (IR) | 0.1 µA max at VR = 7.6 V - ensures minimal quiescent drain in standby-biased reference networks |
| Junction Temperature (Tj) | 150 °C maximum - constrains operating ambient and PCB copper area requirements for reliability |
Pinout & Package
Package: SOD123F - surface-mount plastic package, 2.6 mm × 1.6 mm × 1.1 mm body, flat lead profile optimized for automated assembly and space-constrained PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (marked side) | Cathode (K) | Connected to regulated output node; polarity-sensitive for reverse-bias operation |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes Zener conduction path |
Key Features
| Feature | Design Value |
|---|---|
| Low test current operation | Specified at 50 µA - enables use in microamp-level bias networks without loading source |
| Optimized leakage profile | Intentional minor IR rise per AN90031 - reduces switching transients and broadband noise in sensing paths |
| Thermal performance | Rth(j-sp) = 150 K/W - supports reliable operation with minimal copper pour on single-sided FR4 |
| Robust surge rating | 40 W non-repetitive peak reverse power at tp = 100 µs - withstands ESD and transient overvoltage events |
Applications
| Portable Sensor Reference | Low-Power Microcontroller Reset |
|---|---|
Use Scenario: Providing stable 10 V reference for analog front-end of battery-operated environmental sensor node. IC Role / Device Role / Timing Role: Zener voltage reference for ADC input scaling and op-amp biasing. Use Value: 50 µA test current minimizes battery drain while maintaining ±5 % accuracy across -40 °C to +85 °C. |
Use Scenario: Generating clean reset threshold for ultra-low-power MCU in wearables with coin-cell supply. IC Role / Device Role / Timing Role: Precision voltage monitor triggering POR circuitry during power-up. Use Value: Tight 9.5–10.5 V tolerance ensures deterministic reset assertion without external resistive dividers. |
| IoT Node Voltage Clamp | Industrial Signal Conditioning |
Use Scenario: Clamping 3.3 V logic line against induced surges in wireless mesh node RF section. IC Role / Device Role / Timing Role: Low-leakage shunt protector limiting transient overvoltage to safe levels. Use Value: 0.1 µA max reverse current at 7.6 V prevents false triggering while offering 40 W surge immunity. |
Use Scenario: Stabilizing excitation voltage for 4–20 mA loop transmitter powered from 24 V rail. IC Role / Device Role / Timing Role: Low-drift Zener regulator supplying constant current source reference. Use Value: 150 Ω rdiff ensures <10 mV output shift under 1 mA load variation, improving current-loop accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZT52-C10 | Same 10 V nominal, ±5 % tolerance, but rated at 500 mW Ptot and higher rdiff (200 Ω max) | Limited to lower-power or less precise reference roles due to reduced power margin and poorer regulation | Select when board space allows larger SOD-123 or thermal budget restricts 830 mW operation |
| MMSZ5240B | 10 V nominal, ±5 %, 500 mW Ptot, 170 Ω rdiff, SOD-123 package (not SOD123F) | Slightly higher thermal resistance and no documented fast-switching leakage optimization | Choose only if legacy footprint compatibility with standard SOD-123 is required over noise-sensitive performance |
Compared with BZT5250H-B10X, BZT52-C10 offers identical voltage grading but sacrifices 330 mW power headroom and regulation stability; MMSZ5240B matches voltage tolerance but lacks the SOD123F's thermal efficiency and AN90031 noise-reduction design.
Availability
BZT5250H-B10X is available at Aetrix Electronics and suitable for portable sensor references, low-power microcontroller resets, and IoT voltage clamping requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for BZT5250H-B10X 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 energy-efficient components.
The BZT5250H series belongs to Nexperia's low-current Zener portfolio, engineered specifically for battery-powered and noise-sensitive applications where minimal test current, fast transient response, and stable low-voltage regulation are essential.
FAQ
What is the Zener voltage tolerance for BZT5250H-B10X?
BZT5250H-B10X has a nominal Zener voltage of 10 V with a ±5 % tolerance, meaning the actual VZ falls between 9.5 V and 10.5 V when measured at IZ = 50 µA and Tj = 25 °C. This tolerance is confirmed in Table 8 of the Nexperia datasheet Rev. 1 (18 July 2024).
Can BZT5250H-B10X be used in place of a standard 10 V Zener like 1N4740A?
No - BZT5250H-B10X is not a drop-in replacement for 1N4740A. It operates at 50 µA test current versus 25 mA for 1N4740A, has lower power rating (830 mW vs. 1 W), and uses SOD123F packaging instead of DO-41. Substitution requires redesign of bias network and thermal layout.
What does the "B" in BZT5250H-B10X signify?
The "B" denotes the ±5 % voltage tolerance grade within the BZT5250H series. Nexperia uses "B" for approximately ±5 % and "C" for tighter ±2 % tolerance. The "X" suffix indicates tape-and-reel packaging per ordering code BZT5250H-B10X.
Is BZT5250H-B10X suitable for automotive applications?
No - BZT5250H-B10X is not automotive-qualified. The Nexperia datasheet explicitly states that unless otherwise specified, products are non-automotive qualified and not tested to AEC-Q101. It is intended for industrial, consumer, and portable electronics only.
BZT5250H-B10X 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):
- 10 V
- Tolerance:
- ±2%
- Power - Max:
- 375 mW
- Impedance (Max) (Zzt):
- 20 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 7.6 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-B10X FAQ
1.How can I place an order for BZT5250H-B10X through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT5250H-B10X 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-B10X reliable?
The price and inventory of BZT5250H-B10X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT5250H-B10X is usually 5 days.
3.What payment methods are accepted for BZT5250H-B10X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT5250H-B10X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT5250H-B10X?
BZT5250H-B10X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT5250H-B10X 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-B10X?
For technical support, including BZT5250H-B10X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT5250H-B10X requirements.
6.How does Aetrix verify that BZT5250H-B10X is sourced from the original manufacturer or authorized distributors?
All BZT5250H-B10X 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-B10X meets industry standards.
7.What is the process for return or replacement of BZT5250H-B10X?
All BZT5250H-B10X units undergo pre-shipment inspection (PSI). If there is an issue with BZT5250H-B10X, 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-B10X part is unused and in its original packaging.
Return procedure for BZT5250H-B10X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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