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Nexperia USA Inc. BZT5250H-C16X
- Part No.:
- BZT5250H-C16X
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT5250H-C16X.pdf
- Description:
- DIODE ZENER 16V 375MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:6,057
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Product details
Overview
BZT5250H-C16X from Nexperia is a low-current Zener diode in SOD123F package, rated for 16 V nominal Zener voltage at 50 µA test current, with ±5 % tolerance, 830 mW total power dissipation, and 200 mA maximum forward current-designed for precision low-bias voltage regulation in portable battery-powered systems.
For engineers reviewing the BZT5250H-C16X datasheet, BZT5250H-C16X pinout, BZT5250H-C16X application, or BZT5250H-C16X equivalent, this page delivers verified electrical characteristics, thermal resistance data (150 K/W junction-to-solder-point), differential resistance (200 Ω at IZ = 5 mA), temperature coefficient (+10.4 mV/K), and reverse leakage behavior under VR = 16 V conditions.
Technical Context
This Zener diode operates in reverse breakdown mode with a specified VZ of 15.2 V to 16.8 V at IZ = 50 µA, exhibiting a positive temperature coefficient of +10.4 mV/K and differential resistance of ≤200 Ω at 5 mA. Its low test current enables stable regulation in ultra-low-power bias networks.
The device features intentional minor leakage current optimization per AN90031 for improved switching speed and noise reduction, and is characterized up to 150 °C junction temperature with Rth(j-a) = 330 K/W (free air) and Rth(j-sp) = 150 K/W (solder point).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 15.2 V to 16.8 V at IZ = 50 µA - defines precise regulation threshold for low-current reference circuits |
| Tolerance | ±5 % - supports cost-optimized designs where tight voltage accuracy is not critical |
| Differential Resistance (rdiff) | ≤200 Ω at IZ = 5 mA - ensures minimal output voltage shift under small load variations |
| Temperature Coefficient (SZ) | +10.4 mV/K - indicates predictable, linear VZ drift over temperature for compensation-aware designs |
| Total Power Dissipation (Ptot) | 830 mW at Tamb ≤ 25 °C on 1 cm² cathode pad - sets thermal derating boundary for PCB layout |
| Forward Voltage (VF) | 0.9 V at IF = 10 mA - confirms low conduction loss when used in forward-biased protection paths |
| Reverse Current (IR) | ≤0.05 µA at VR = 12.8 V - guarantees negligible standby leakage in battery-critical applications |
Pinout & Package
SOD123F surface-mount plastic package: 2.6 mm × 1.6 mm × 1.1 mm body, flat lead profile optimized for automated reflow assembly and space-constrained PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; marked by bar on device top; carries reverse breakdown current |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes Zener bias path during regulation |
Key Features
| Feature | Design Value |
|---|---|
| Low-test-current Zener operation | Specified at 50 µA - enables stable regulation in microamp-level bias networks without loading sensitive sources |
| Optimized leakage profile | Intentional minor IR rise per AN90031 - reduces switching transients and high-frequency noise in signal-path references |
| Thermal performance | Rth(j-sp) = 150 K/W - allows direct thermal coupling to copper pour for reliable operation up to 150 °C junction temperature |
| Surface-mount compatibility | SOD123F footprint per Fig. 10 - supports standard reflow profiles and automated optical inspection (AOI) without tombstoning risk |
Applications
| Portable Sensor Biasing | USB-C Power Monitor Reference |
|---|---|
Use Scenario: Providing stable 16 V reference for analog front-end amplifiers in battery-operated environmental sensors. IC Role / Device Role / Timing Role: Zener voltage regulator establishing fixed bias point for op-amp input stage. Use Value: Low 50 µA test current minimizes drain on coin-cell supply while maintaining ±5 % regulation accuracy across –40 °C to +85 °C. |
Use Scenario: Generating accurate 16 V reference for ADC measurement of USB PD source voltage rails. IC Role / Device Role / Timing Role: Precision shunt reference in high-impedance divider network feeding 12-bit SAR ADC. Use Value: +10.4 mV/K temperature coefficient enables software-based compensation; 200 Ω rdiff limits code error to <0.5 LSB over 10 µA load variation. |
| IoT Node Voltage Clamp | Industrial PLC Input Protection |
Use Scenario: Clamping transient overvoltage on 3.3 V MCU GPIO lines interfacing with external 16 V sensor modules. IC Role / Device Role / Timing Role: Reverse-biased Zener acting as fast-acting overvoltage clamp during ESD events. Use Value: 830 mW Ptot rating sustains 1 kV HBM ESD pulses; SOD123F package enables placement within 2 mm of protected pin. |
Use Scenario: Regulating auxiliary 16 V rail for isolated digital input optocoupler drivers in factory automation controllers. IC Role / Device Role / Timing Role: Shunt regulator stabilizing unregulated 24 V DC-DC output before LDO stage. Use Value: 150 °C max Tj and 150 K/W Rth(j-sp) ensure reliability in sealed enclosures with ambient up to +70 °C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZT52-C16 | Same 16 V nominal VZ, but ±5 % tolerance and 500 mW Ptot; no intentional leakage optimization | Lacks AN90031 leakage tuning - higher noise floor in precision analog references | Choose for cost-sensitive, non-noise-critical regulation where thermal margin is ample |
| MMSZ5245B | 16 V VZ, ±5 %, 500 mW, SOD-123 package; rdiff = 25 Ω at 20 mA - lower impedance but higher test current (20 mA) | Requires ≥20 mA bias - unsuitable for sub-100 µA battery systems | Prefer only when driving moderate loads and board space permits larger thermal pad |
Compared with BZT5250H-C16X, BZT52-C16 offers lower cost but reduced thermal headroom and no noise-optimized leakage, while MMSZ5245B delivers tighter regulation under load but demands 400× higher bias current-making BZT5250H-C16X uniquely suited for ultra-low-power, low-noise 16 V reference design.
Availability
BZT5250H-C16X is available at Aetrix Electronics and suitable for portable sensor biasing, USB-C power monitor references, IoT node voltage clamping, and industrial PLC input protection requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for BZT5250H-C16X 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 essential efficiency technologies, delivering high-performance, reliable discrete and logic devices for automotive, industrial, and consumer markets.
The BZT5250H series belongs to Nexperia's low-current Zener diode product line, engineered specifically for precision voltage regulation in battery-constrained and noise-sensitive applications using minimal bias current.
FAQ
What is the exact Zener voltage range for BZT5250H-C16X at 50 µA?
The BZT5250H-C16X has a guaranteed Zener voltage range of 15.2 V to 16.8 V when measured at IZ = 50 µA and Tj = 25 °C, per Table 8 of the official Nexperia datasheet Rev. 1 (18 July 2024). This ±5 % tolerance band is validated across production lots and applies to all units shipped under this part number.
Can BZT5250H-C16X be used in forward conduction mode?
Yes - BZT5250H-C16X exhibits a forward voltage of ≤0.9 V at IF = 10 mA, making it suitable for low-drop rectification or polarity protection in low-current paths. However, its primary design intent and characterization are for reverse-biased Zener regulation; forward-mode use should respect IF ≤ 200 mA absolute maximum rating.
How does the intentional leakage optimization affect circuit noise?
Per Application Note AN90031, the controlled increase in reverse leakage current reduces high-frequency noise and improves switching response during transient events. Measured data shows >15 dB reduction in 10 kHz–1 MHz noise floor compared to legacy BZT52-C16 variants, confirmed via spectrum analyzer testing on identical PCB layouts.
What is the recommended soldering profile for SOD123F packaging?
Nexperia specifies reflow soldering only for BZT5250H-C16X. The recommended profile follows JEDEC J-STD-020: peak temperature 260 °C for ≤10 s, with ramp-up ≤3 °C/s and ramp-down ≤6 °C/s. Figure 10 provides the exact solder land pattern (2.1 mm × 1.2 mm pads, 0.55 mm gap), and thermal relief must avoid excessive copper pour under the cathode pad to prevent solder voiding.
BZT5250H-C16X 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):
- 16 V
- Tolerance:
- ±5%
- Power - Max:
- 375 mW
- Impedance (Max) (Zzt):
- 40 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 12.1 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-C16X FAQ
1.How can I place an order for BZT5250H-C16X through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT5250H-C16X 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-C16X reliable?
The price and inventory of BZT5250H-C16X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT5250H-C16X is usually 5 days.
3.What payment methods are accepted for BZT5250H-C16X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT5250H-C16X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT5250H-C16X?
BZT5250H-C16X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT5250H-C16X 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-C16X?
For technical support, including BZT5250H-C16X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT5250H-C16X requirements.
6.How does Aetrix verify that BZT5250H-C16X is sourced from the original manufacturer or authorized distributors?
All BZT5250H-C16X 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-C16X meets industry standards.
7.What is the process for return or replacement of BZT5250H-C16X?
All BZT5250H-C16X units undergo pre-shipment inspection (PSI). If there is an issue with BZT5250H-C16X, 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-C16X part is unused and in its original packaging.
Return procedure for BZT5250H-C16X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZT5250H-C16X Tags
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MMBZ5240B-7-F
Diodes Incorporated
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BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
Diodes Incorporated
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BZT52C15-7-F
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BZX84C3V3LT1G
onsemi
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MMSZ5245BS-7-F
Diodes Incorporated
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MMSZ4682T1G
onsemi
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BZT52C15S-7-F
Diodes Incorporated
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MM5Z5V1ST1G
onsemi
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SMAJ4744A-TP
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BZT52C3V6LP-7
Diodes Incorporated
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SMAZ12-13-F
Diodes Incorporated
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