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Nexperia USA Inc. BZT5250H-C3V6X
- Part No.:
- BZT5250H-C3V6X
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT5250H-C3V6X.pdf
- Description:
- DIODE ZENER 3.6V 375MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:4,990
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Product details
Overview
BZT5250H-C3V6X from Nexperia is a low-current Zener diode in SOD123F package, providing 3.6 V nominal regulation at 50 µA test current with ±5 % tolerance, 95 Ω differential resistance at 5 mA, and 2.0 µA reverse current at 3.6 V. It serves as a precision voltage reference or low-power shunt regulator in battery-powered sensor nodes and portable microcontroller reset circuits.
For engineers reviewing the BZT5250H-C3V6X datasheet, BZT5250H-C3V6X pinout, BZT5250H-C3V6X application, or BZT5250H-C3V6X equivalent, key selection criteria include its low 50 µA regulation test current, intentional leakage optimization for noise reduction per AN90031, SOD123F thermal performance (Rth(j-sp) = 150 K/W), and cathode-anode polarity marking on the package body.
Technical Context
This Zener operates in reverse breakdown mode with a specified VZ of 3.42 V to 3.78 V at IZ = 50 µA, exhibiting a temperature coefficient of −3.5 mV/K and diode capacitance of 160 pF at 0 V. Its low test current enables stable regulation in ultra-low-power systems where bias current must remain below 100 µA.
The device features an intentional minor rise in leakage current-distinct from standard BZT5250H-B variants-to improve switching speed and reduce high-frequency noise in signal conditioning paths, as documented in application note AN90031.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 3.42 V to 3.78 V at IZ = 50 µA - defines regulation setpoint under minimal bias |
| Tolerance | ±5 % - specifies maximum deviation from nominal 3.6 V in production units |
| Differential Resistance (rdiff) | 95 Ω at IZ = 5 mA - determines output impedance and load regulation sensitivity |
| Reverse Current (IR) | 2.0 µA at VR = 3.6 V - quantifies leakage near regulation voltage, critical for standby power |
| Total Power Dissipation (Ptot) | 830 mW at Tamb ≤ 25 °C - sets maximum continuous DC power handling on standard FR4 PCB |
| Forward Voltage (VF) | 0.9 V at IF = 10 mA - defines conduction drop when used in forward-biased protection or clamping |
| Junction Temperature (Tj) | 150 °C maximum - constrains thermal design margin in enclosed or high-ambient environments |
Pinout & Package
SOD123F surface-mount plastic package: 2.6 mm × 1.6 mm × 1.1 mm body, flat lead profile, single-sided copper FR4 mounting pad (1 cm² cathode pad), marked with cathode bar.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; marking bar identifies this terminal; carries reverse breakdown current |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes reverse-bias path during regulation |
Key Features
| Feature | Design Value |
|---|---|
| Low test current operation | Specified at 50 µA - enables use in sub-100 µA bias networks without compromising regulation accuracy |
| Optimized leakage profile | Intentional minor leakage rise (C-series) - reduces switching transients and broadband noise per AN90031 |
| Thermal performance | Rth(j-sp) = 150 K/W - supports reliable operation up to 830 mW with standard PCB layout |
| Small-form-factor SMD | SOD123F footprint - fits high-density layouts while maintaining 1.1 mm height for low-profile assemblies |
| Stable temperature coefficient | −3.5 mV/K - ensures predictable VZ drift over −55 °C to +150 °C ambient range |
Applications
| Portable Sensor Node Power Rail | Microcontroller Reset Circuit |
|---|---|
Use Scenario: Regulating 3.6 V supply for MEMS accelerometer and BLE radio in coin-cell–powered IoT endpoint. IC Role / Device Role / Timing Role: Shunt voltage reference establishing stable bias point for analog front-end and digital logic. Use Value: 50 µA test current minimizes quiescent drain; ±5 % tolerance ensures reset threshold remains within 3.42–3.78 V across temperature. |
Use Scenario: Generating clean 3.6 V reset threshold for ARM Cortex-M0+ MCU during cold start and brownout recovery. IC Role / Device Role / Timing Role: Precision Zener defining hysteresis window for external reset supervisor IC. Use Value: Low 2.0 µA leakage at 3.6 V prevents false triggering; −3.5 mV/K TC maintains reset accuracy over industrial temperature range. |
| Low-Power ADC Reference | Signal-Level Clamping |
Use Scenario: Providing stable 3.6 V reference for 12-bit SAR ADC sampling thermistor and photodiode signals. IC Role / Device Role / Timing Role: Low-noise voltage reference source with optimized leakage for reduced measurement offset drift. Use Value: Intentional C-series leakage profile suppresses high-frequency noise coupling into reference node per AN90031. |
Use Scenario: Clamping analog audio line to ±3.6 V using dual-Zener configuration with series resistor. IC Role / Device Role / Timing Role: Reverse-biased Zener limiting peak signal excursion to protect downstream op-amp inputs. Use Value: 95 Ω rdiff ensures sharp knee and predictable clamping level; 0.9 V forward drop enables bidirectional protection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZT5250H-B3V6 | ±2 % tolerance, lower leakage (0.8 µA at 3.6 V), no intentional leakage optimization | Better for ultra-low-leakage biasing; unsuitable where AN90031 noise reduction is required | Select B-series only if tighter tolerance and minimal leakage outweigh noise-performance trade-off |
| MMSZ5227B-7-F | 3.6 V nominal, ±5 %, SOD-123 package, 100 Ω rdiff, 2.0 µA IR, but no documented leakage optimization | Lacks AN90031 noise-reduction feature; identical thermal specs and footprint | Use only if Nexperia-specific fast-switching behavior is not required; verify noise performance in target circuit |
Compared with BZT5250H-C3V6X, the BZT5250H-B3V6 offers tighter tolerance and lower leakage but forfeits intentional noise suppression, while MMSZ5227B-7-F matches key electricals but omits the documented leakage tuning for signal integrity-critical applications.
Availability
BZT5250H-C3V6X is available at Aetrix Electronics and suitable for portable sensor nodes, microcontroller reset circuits, low-power ADC references, and signal-level clamping requiring stable component supply with guaranteed long-term sourcing.
Supply support for BZT5250H-C3V6X 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, designed specifically for battery-constrained and noise-sensitive applications where regulation at microampere bias currents and optimized switching behavior are essential.
FAQ
What is the exact Zener voltage range for BZT5250H-C3V6X at 50 µA?
The BZT5250H-C3V6X has a guaranteed Zener voltage range of 3.42 V to 3.78 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 10 % span reflects its ±5 % tolerance grade.
How does the "C-series" leakage optimization affect circuit behavior?
The C-series variant features an intentional minor rise in leakage current-documented in AN90031-to reduce high-frequency noise and improve transient response during switching events. Unlike standard Zeners, this controlled leakage lowers EMI in sensitive analog or RF-adjacent signal paths without compromising DC regulation stability.
Can BZT5250H-C3V6X be used in forward conduction mode?
Yes: the device exhibits a forward voltage of 0.9 V at IF = 10 mA (Table 1), making it suitable for low-drop clamping or polarity protection. However, its primary design intent is reverse-bias regulation; forward conduction should be limited to ≤200 mA per absolute maximum ratings to avoid junction overheating.
What is the thermal resistance from junction to solder point (Rth(j-sp)) and why does it matter?
Rth(j-sp) is 150 K/W (Table 6), measured from die junction to cathode solder point on a standard FR4 PCB. This value directly determines temperature rise under power dissipation: at 500 mW, junction-to-solder-point rise is ~75 °C. It is critical for predicting real-world thermal margin when the cathode pad is thermally coupled to a larger copper area.
BZT5250H-C3V6X 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):
- 3.6 V
- Tolerance:
- ±5%
- Power - Max:
- 375 mW
- Impedance (Max) (Zzt):
- 95 Ohms
- Current - Reverse Leakage @ Vr:
- 7.5 µA @ 2 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-C3V6X FAQ
1.How can I place an order for BZT5250H-C3V6X through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT5250H-C3V6X 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-C3V6X reliable?
The price and inventory of BZT5250H-C3V6X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT5250H-C3V6X is usually 5 days.
3.What payment methods are accepted for BZT5250H-C3V6X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT5250H-C3V6X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT5250H-C3V6X?
BZT5250H-C3V6X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT5250H-C3V6X 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-C3V6X?
For technical support, including BZT5250H-C3V6X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT5250H-C3V6X requirements.
6.How does Aetrix verify that BZT5250H-C3V6X is sourced from the original manufacturer or authorized distributors?
All BZT5250H-C3V6X 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-C3V6X meets industry standards.
7.What is the process for return or replacement of BZT5250H-C3V6X?
All BZT5250H-C3V6X units undergo pre-shipment inspection (PSI). If there is an issue with BZT5250H-C3V6X, 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-C3V6X part is unused and in its original packaging.
Return procedure for BZT5250H-C3V6X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZT5250H-C3V6X Tags
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