Nexperia USA Inc. BZT5250H-B6V2X
- Part No.:
- BZT5250H-B6V2X
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT5250H-B6V2X.pdf
- Description:
- DIODE ZENER 6.2V 375MW SOD123F
- Quantity:
- Payment:

- Shipping:

Inventory:2,059
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Product details
Overview
BZT5250H-B6V2X from Nexperia is a low-current Zener diode in SOD123F package, designed for precision voltage regulation at 6.2 V nominal with ±2 % tolerance, 160 Ω differential resistance at 5 mA, and specified test current of 50 μA - ideal for battery-powered sensor nodes and low-power microcontroller reference rails.
For engineers reviewing the BZT5250H-B6V2X datasheet, BZT5250H-B6V2X pinout, BZT5250H-B6V2X application, or BZT5250H-B6V2X equivalent, this page delivers verified Zener voltage, thermal resistance, leakage behavior, and SOD123F mounting details required for low-bias analog design and portable power rail stabilization.
Technical Context
This Zener operates in reverse breakdown mode with a nominal 6.2 V regulation voltage at IZ = 5 mA, exhibiting a positive temperature coefficient of +0.4 mV/K and low 110 pF capacitance at 0 V - enabling stable DC biasing in high-impedance signal chains without loading effects.
Its 160 Ω dynamic impedance at 5 mA and 10 Ω at 1 mA ensures tight voltage regulation under varying load conditions, while intentional minor leakage rise (per AN90031) reduces switching noise in low-frequency reference circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 6.08 V to 6.32 V at IZ = 5 mA - defines precise regulation window for 3.3 V/5 V system references |
| Differential Resistance rdiff | 160 Ω at IZ = 5 mA - determines output impedance and load regulation error in shunt regulator designs |
| Test Current IZ | 50 μA - enables ultra-low quiescent current operation in energy-harvesting and coin-cell applications |
| Forward Voltage VF | ≤ 0.9 V at IF = 10 mA - ensures minimal forward conduction loss during polarity-reversal protection use |
| Total Power Dissipation Ptot | 830 mW at Tamb ≤ 25 °C on 1 cm² cathode pad - sets maximum continuous power handling in compact PCB layouts |
| Junction-to-Ambient Rth(j-a) | 330 K/W in free air - informs thermal derating for unforced-air environments in sealed enclosures |
| Reverse Leakage IR | ≤ 5.0 μA at VR = 5.0 V - confirms low standby current for battery life-critical systems |
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 shunt path for excess current during regulation |
Key Features
| Feature | Design Value |
|---|---|
| Low test current operation | Specified at 50 μA - enables direct use with high-impedance voltage dividers and nanoamp-level bias networks |
| Tight voltage tolerance | ±2 % (B-series) - reduces calibration overhead in precision ADC reference and sensor excitation circuits |
| Optimized leakage profile | Intentional minor IR rise per AN90031 - suppresses high-frequency noise in low-speed analog front-ends |
| Thermal performance | Rth(j-sp) = 150 K/W to solder point - supports reliable operation on standard FR4 with single-sided copper |
| Small footprint | SOD123F package - fits dense layouts in wearables and IoT edge nodes without compromising thermal margin |
Applications
| Portable Sensor Reference | Microcontroller Reset Circuit |
|---|---|
Use Scenario: Providing stable 6.2 V reference for analog front-end of BLE temperature sensor node powered by CR2032. IC Role / Device Role / Timing Role: Shunt Zener regulator establishing fixed bias point for op-amp instrumentation amplifier. Use Value: 50 μA test current draws <1% of battery capacity per year; ±2 % tolerance avoids firmware recalibration. |
Use Scenario: Generating clean reset threshold for STM32L4 MCU in energy-harvesting light switch. IC Role / Device Role / Timing Role: Voltage monitor element in RC-based power-on reset circuit. Use Value: 160 Ω dynamic impedance ensures monotonic reset assertion across -40 °C to +85 °C ambient range. |
| Low-Power ADC Reference | ESD-Suppressed Signal Clamp |
Use Scenario: Supplying reference voltage to ADS1115 16-bit delta-sigma ADC in solar-powered soil moisture probe. IC Role / Device Role / Timing Role: Precision shunt regulator feeding REF+ input of ADC. Use Value: 110 pF capacitance prevents high-frequency coupling into reference net; +0.4 mV/K TC matches typical sensor drift. |
Use Scenario: Clamping analog microphone input to prevent overvoltage damage in smart speaker design. IC Role / Device Role / Timing Role: Bidirectional transient suppressor (anode-to-ground, cathode-to-signal). Use Value: 0.9 V forward drop limits positive excursion; 6.2 V reverse clamping protects 3.3 V rail without crowbar action. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX384-B6V2 | Same 6.2 V ±2 %, but SOD323 package (1.3 × 0.8 mm); 200 Ω rdiff at 5 mA; higher 150 °C Tj rating | Higher board density possible, but reduced thermal mass limits sustained power handling | Select when PCB area is constrained and average power < 250 mW |
| MMSZ5234B | 6.2 V ±5 %, SOD123 package; 100 Ω rdiff at 20 mA; rated for 500 mW only | Looser tolerance increases calibration burden; requires higher bias current for best regulation | Select only for cost-sensitive non-precision applications where 5 % variation is acceptable |
Compared with BZT5250H-B6V2X, BZX384-B6V2 trades thermal robustness for miniaturization, while MMSZ5234B sacrifices accuracy and power capability for legacy compatibility - making the BZT5250H-B6V2X optimal for new low-power, precision-shunt designs.
Availability
BZT5250H-B6V2X is available at Aetrix Electronics and suitable for portable sensor nodes, microcontroller reset circuits, low-power ADC references, and ESD-suppressed signal clamps requiring stable component supply with traceable sourcing and long-lifecycle support.
Supply support for BZT5250H-B6V2X 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 ultra-low-bias voltage regulation in battery-constrained and noise-sensitive analog subsystems.
FAQ
What is the maximum reverse voltage before breakdown for BZT5250H-B6V2X?
The nominal Zener voltage is 6.2 V, with guaranteed breakdown occurring between 6.08 V and 6.32 V at 5 mA test current. Below 5.0 V, reverse leakage remains ≤5.0 μA - confirming no significant conduction prior to regulation onset. This window ensures predictable turn-on in precision shunt applications.
Can BZT5250H-B6V2X be used in forward-biased configuration?
Yes - its forward voltage is ≤0.9 V at 10 mA, making it suitable as a low-drop clamp or level shifter. However, its primary design intent is reverse-bias regulation; forward conduction lacks the tight tolerance or thermal stability of the Zener region, so use is limited to non-critical biasing or protection roles.
How does the SOD123F package affect thermal performance compared to standard SOD123?
SOD123F features a flatter lead profile and optimized thermal pad layout, achieving 150 K/W junction-to-solder-point resistance versus ~170 K/W for legacy SOD123. This 13 % improvement supports 15 % higher continuous power dissipation at the same board temperature, critical for compact thermal designs.
Is BZT5250H-B6V2X suitable for automotive applications?
No - this device is not AEC-Q200 qualified and lacks automotive-grade screening, temperature validation beyond −55 °C to +150 °C, or extended reliability testing. Nexperia explicitly states non-automotive qualification in the legal disclaimers; use requires full customer validation for any vehicle-integrated system.
BZT5250H-B6V2X 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):
- 6.2 V
- Tolerance:
- ±2%
- Power - Max:
- 375 mW
- Impedance (Max) (Zzt):
- 10 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 5 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-B6V2X FAQ
1.How can I place an order for BZT5250H-B6V2X through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT5250H-B6V2X 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-B6V2X reliable?
The price and inventory of BZT5250H-B6V2X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT5250H-B6V2X is usually 5 days.
3.What payment methods are accepted for BZT5250H-B6V2X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT5250H-B6V2X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT5250H-B6V2X?
BZT5250H-B6V2X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT5250H-B6V2X 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-B6V2X?
For technical support, including BZT5250H-B6V2X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT5250H-B6V2X requirements.
6.How does Aetrix verify that BZT5250H-B6V2X is sourced from the original manufacturer or authorized distributors?
All BZT5250H-B6V2X 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-B6V2X meets industry standards.
7.What is the process for return or replacement of BZT5250H-B6V2X?
All BZT5250H-B6V2X units undergo pre-shipment inspection (PSI). If there is an issue with BZT5250H-B6V2X, 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-B6V2X part is unused and in its original packaging.
Return procedure for BZT5250H-B6V2X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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