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Nexperia USA Inc. BZT5250H-C9V1X
- Part No.:
- BZT5250H-C9V1X
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT5250H-C9V1X.pdf
- Description:
- DIODE ZENER 9.1V 375MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:4,351
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Product details
Overview
BZT5250H-C9V1X from Nexperia is a low-current Zener diode in SOD123F package, providing precise 9.1 V voltage regulation at 50 µA test current with ±5 % tolerance. It delivers 100 Ω dynamic impedance at 5 mA and exhibits 3.8 mV/K temperature coefficient, optimized for portable battery-powered systems requiring stable reference voltage under light-load conditions.
For engineers reviewing the BZT5250H-C9V1X datasheet, BZT5250H-C9V1X pinout, BZT5250H-C9V1X application, or BZT5250H-C9V1X equivalent, this device serves as a compact, low-leakage voltage reference for power rail monitoring, analog sensor biasing, and overvoltage protection circuits where minimal quiescent current and thermal stability are critical.
Technical Context
This Zener diode operates in reverse breakdown mode with a nominal working voltage of 9.1 V, specified at IZ = 50 µA - enabling ultra-low-power regulation in standby or sleep-mode circuits. Its intentional minor leakage rise improves switching speed and reduces noise per AN90031, distinguishing it from standard Zeners.
The device features a differential resistance of 100 Ω at 5 mA and a junction-to-solder-point thermal resistance of 70 K/W, supporting reliable operation up to 150 °C junction temperature. Its 150 pF capacitance at 0 V and 1 MHz enables stable performance in high-frequency sensing and feedback paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 8.65 V to 9.56 V at IZ = 50 µA - ensures tight regulation window for precision reference applications |
| Differential Resistance (rdiff) | 100 Ω at IZ = 5 mA - maintains stable output under small load variations |
| Temperature Coefficient (SZ) | +3.8 mV/K - enables predictable drift compensation in temperature-sensitive designs |
| Reverse Current (IR) | ≤ 0.1 µA at VR = 6.9 V - minimizes standby power loss in battery-critical systems |
| Forward Voltage (VF) | ≤ 0.9 V at IF = 10 mA - supports low-loss forward conduction during transient clamping |
| Total Power Dissipation (Ptot) | 830 mW at Tamb ≤ 25 °C on 1 cm² cathode pad - defines thermal derating envelope for PCB layout |
| Junction Temperature (Tj) | −55 °C to +150 °C - qualifies for industrial ambient environments without forced cooling |
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 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 specification | Rated at 50 µA - enables use in microamp-level bias networks without loading error |
| Optimized leakage profile | Intentional minor IR rise per AN90031 - reduces switching transients and broadband noise in feedback loops |
| Thermal performance | Rth(j-sp) = 70 K/W - allows direct thermal coupling to copper pour for improved long-term reliability |
| Small-form-factor packaging | SOD123F footprint - fits high-density layouts while maintaining 830 mW dissipation capability |
| Voltage tolerance option | ±5 % (C-series) - balances cost and accuracy for non-critical reference applications |
Applications
| Power Rail Monitoring | Analog Sensor Biasing |
|---|---|
|
Use Scenario: Monitoring 12 V supply rail in IoT edge node to trigger brown-out reset when voltage drops below 9.5 V. IC Role / Device Role / Timing Role: Zener acts as passive voltage threshold detector feeding comparator input. Use Value: 0.1 µA leakage ensures <1 µW standby power draw, extending battery life in sleep mode. |
Use Scenario: Providing stable 9.1 V bias to MEMS pressure sensor's internal amplifier stage. IC Role / Device Role / Timing Role: Low-noise voltage reference source for analog front-end conditioning. Use Value: +3.8 mV/K TC and 100 Ω rdiff minimize sensor offset drift across −40 °C to +85 °C. |
| Overvoltage Protection | Reference Clamping in ADC Circuits |
|
Use Scenario: Protecting MCU GPIO input from accidental 15 V surges in industrial control panel interface. IC Role / Device Role / Timing Role: Fast-acting shunt clamp limiting input to 9.56 V maximum. Use Value: 150 pF capacitance avoids signal integrity degradation on 100 kHz analog input lines. |
Use Scenario: Clamping ADC reference input to prevent damage from ESD-induced overshoot during hot-plug events. IC Role / Device Role / Timing Role: Secondary reference limiter backing up primary voltage reference IC. Use Value: 50 µA test current matches typical ADC ref pin leakage, avoiding regulation error. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584-C9V1 | Same 9.1 V, ±5 %, but SOD323 package (1.7 × 1.3 mm); 150 Ω rdiff at 5 mA | Higher board density possible, but lower power rating (500 mW vs. 830 mW) | Choose for space-constrained designs where thermal margin is sufficient |
| MMSZ5240B | 9.1 V, ±5 %, SOD123 package; 100 Ω rdiff, but rated at 500 mW and 200 µA IZ | Higher test current increases quiescent power; less suitable for sub-µA systems | Prefer only if legacy compatibility with MMSZ52xx footprint is required |
Compared with BZT5250H-C9V1X, BZX584-C9V1 trades thermal robustness for size reduction, while MMSZ5240B sacrifices low-current precision for broader industry adoption - making the BZT5250H-C9V1X optimal for new designs prioritizing battery efficiency and thermal headroom.
Availability
BZT5250H-C9V1X is available at Aetrix Electronics and suitable for power rail monitoring, analog sensor biasing, overvoltage protection, and ADC reference clamping requiring stable component supply across industrial, IoT, and portable electronics programs.
Supply support for BZT5250H-C9V1X 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 for consumer, industrial, and automotive markets.
BZT5250H belongs to Nexperia's low-current Zener diode product line, engineered specifically for energy-efficient voltage reference and regulation in battery-powered and thermally constrained applications.
FAQ
What is the maximum reverse voltage this Zener can sustain before breakdown?
The BZT5250H-C9V1X has a nominal Zener voltage of 9.1 V, with guaranteed breakdown occurring between 8.65 V and 9.56 V at 50 µA test current. It is not rated for sustained operation above 9.56 V in reverse bias; exceeding this risks uncontrolled conduction or thermal runaway without current limiting.
Can this diode be used in series for higher-voltage references?
No - the BZT5250H-C9V1X is not characterized or qualified for series connection. Variations in Zener voltage tolerance (±5 %), temperature coefficient mismatch, and dynamic impedance differences would cause uneven voltage sharing and potential thermal instability in stacked configurations.
Is the SOD123F package compatible with standard reflow soldering profiles?
Yes - Nexperia specifies reflow soldering as the only recommended method for SOD123F. The package supports JEDEC J-STD-020D-compliant peak temperatures up to 260 °C, with thermal resistance data validated on FR4 PCBs using the footprint shown in Figure 10 of the datasheet.
How does the "intentional minor rise of leakage current" affect circuit behavior?
Per AN90031, this controlled increase in reverse leakage improves switching speed and suppresses high-frequency noise in regulation loops. It does not compromise DC accuracy - leakage remains ≤0.1 µA at 6.9 V - but enhances transient response during rapid load changes or ESD events.
BZT5250H-C9V1X 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):
- 9.1 V
- Tolerance:
- ±5%
- Power - Max:
- 375 mW
- Impedance (Max) (Zzt):
- 15 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 6.9 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-C9V1X FAQ
1.How can I place an order for BZT5250H-C9V1X through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT5250H-C9V1X 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-C9V1X reliable?
The price and inventory of BZT5250H-C9V1X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT5250H-C9V1X is usually 5 days.
3.What payment methods are accepted for BZT5250H-C9V1X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT5250H-C9V1X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT5250H-C9V1X?
BZT5250H-C9V1X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT5250H-C9V1X 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-C9V1X?
For technical support, including BZT5250H-C9V1X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT5250H-C9V1X requirements.
6.How does Aetrix verify that BZT5250H-C9V1X is sourced from the original manufacturer or authorized distributors?
All BZT5250H-C9V1X 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-C9V1X meets industry standards.
7.What is the process for return or replacement of BZT5250H-C9V1X?
All BZT5250H-C9V1X units undergo pre-shipment inspection (PSI). If there is an issue with BZT5250H-C9V1X, 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-C9V1X part is unused and in its original packaging.
Return procedure for BZT5250H-C9V1X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZT5250H-C9V1X Tags
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