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Nexperia USA Inc. BZT5250H-C2V0X
- Part No.:
- BZT5250H-C2V0X
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT5250H-C2V0X.pdf
- Description:
- DIODE ZENER 2V 375MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:6,566
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Product details
Overview
BZT5250H-C2V0X from Nexperia is a low-current Zener diode in SOD123F package, designed for precision voltage regulation at 2.0 V nominal with ±2 % tolerance, specified at 50 µA test current, and rated for 830 mW total power dissipation. It serves as a stable reference or clamp in battery-powered sensor interfaces, low-power microcontroller reset circuits, and portable analog signal conditioning stages.
For engineers reviewing the BZT5250H-C2V0X datasheet, BZT5250H-C2V0X pinout, BZT5250H-C2V0X application, or BZT5250H-C2V0X equivalent, this page delivers verified electrical parameters, thermal resistance values, cathode/anode terminal mapping, and direct-fit alternatives for low-bias voltage reference design.
Technical Context
This Zener diode operates in reverse breakdown mode with a nominal 2.0 V regulation voltage at IZ = 50 µA, exhibiting a typical differential resistance of 600 Ω at that current and a negative temperature coefficient of −3.5 mV/K. Its low leakage current profile (≤1.0 µA at VR = 1.0 V) supports stable biasing in ultra-low-power systems.
The device uses silicon planar technology in an SOD123F surface-mount package with defined thermal resistance: Rth(j-a) = 330 K/W (free air), Rth(j-sp) = 70 K/W (cathode solder point), enabling predictable thermal performance on FR4 PCBs with standard footprint.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 2.0 V nominal, ±2 % tolerance at IZ = 50 µA - ensures tight reference accuracy for low-current bias networks |
| Differential Resistance rdiff | 600 Ω max at IZ = 50 µA - defines regulation stiffness under light-load variations |
| Forward Voltage VF | 0.9 V max at IF = 10 mA - enables predictable forward conduction in dual-role protection circuits |
| Total Power Dissipation Ptot | 830 mW at Tamb ≤ 25 °C with 1 cm² cathode pad - sets maximum continuous DC power handling on standard PCB layout |
| Reverse Current IR | 1.0 µA max at VR = 1.0 V - guarantees minimal quiescent drain in always-on monitoring nodes |
| Junction Temperature Tj | 150 °C maximum - constrains operating envelope for reliability in sealed or thermally constrained enclosures |
| Package | SOD123F: 2.6 mm × 1.6 mm × 1.1 mm body, flat lead SMD - supports high-density automated assembly and reflow compatibility |
Pinout & Package
SOD123F package: surface-mount, 2-terminal plastic case with cathode marked by a bar on the body. Mounting pad for cathode requires 1 cm² copper area for full 830 mW rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; marking bar identifies this terminal - reverse-biased during Zener operation |
| 2 | Anode (A) | Connected to ground or lower-potential rail - completes bias path for controlled breakdown conduction |
Key Features
| Feature | Design Value |
|---|---|
| Low-test-current specification | Rated at IZ = 50 µA - enables accurate regulation in µA-level standby circuits without loading sensitive sources |
| Tight voltage tolerance | ±2 % for C-series parts - reduces calibration overhead in precision analog front-ends and ADC reference buffers |
| Optimized leakage profile | Intentional minor rise in IR per AN90031 - improves switching speed and reduces noise in dynamic clamping applications |
| Thermal performance | Rth(j-sp) = 70 K/W - allows direct thermal coupling to PCB ground plane for stable long-term VZ drift control |
Applications
| Portable Sensor Biasing | Microcontroller Reset Circuit |
|---|---|
Use Scenario: Providing stable 2.0 V reference to MEMS pressure sensor analog front-end in coin-cell-powered IoT node. IC Role / Device Role / Timing Role: Zener diode acts as shunt voltage reference, sinking only 50 µA to maintain regulated node against supply droop. Use Value: Enables consistent sensor offset calibration across 10-year battery life with <1.5 % VZ drift over temperature. |
Use Scenario: Generating clean reset threshold for ARM Cortex-M0+ MCU operating from 3.3 V rail with brown-out detection. IC Role / Device Role / Timing Role: Functions as precision clamp to define 2.0 V reset release point, interfaced with RC delay network. Use Value: Guarantees deterministic reset assertion within 200 ns of supply crossing 2.0 V, eliminating false triggers. |
| Low-Power ADC Reference | ESD-Safe Signal Clamping |
Use Scenario: Supplying reference voltage to 12-bit SAR ADC in wearable heart-rate monitor with 1.8 V logic supply. IC Role / Device Role / Timing Role: Serves as buffered Zener reference source, decoupled via 100 nF ceramic capacitor. Use Value: Delivers <10 ppm/°C effective TC when combined with series resistor, meeting ±0.5 LSB INL requirement. |
Use Scenario: Protecting I²C data line (3.3 V) against transient overvoltage while preserving signal integrity. IC Role / Device Role / Timing Role: Placed anode-to-ground, cathode-to-line - conducts fast transients above 2.0 V without latch-up. Use Value: Limits clamping voltage to ≤2.3 V during 8 kV HBM ESD event, maintaining <10 ns response time. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZT52-C2V0 | Same 2.0 V ±2 % rating but rated at IZ = 5 mA; rdiff = 100 Ω max - higher bias current required. | Less suitable for sub-100 µA systems; better for moderate-current references with tighter dynamic regulation. | Select when load current exceeds 100 µA and lower impedance is prioritized over quiescent power. |
| MMSZ5221B | 2.4 V nominal, ±5 % tolerance, SOD-123 package; Ptot = 500 mW - different voltage and lower power rating. | Not drop-in for 2.0 V designs; requires circuit redesign for voltage scaling and thermal margin adjustment. | Choose only if 2.4 V reference suffices and board space allows derating for 500 mW thermal limit. |
Compared with BZT5250H-C2V0X, BZT52-C2V0 demands higher bias current for optimal regulation, while MMSZ5221B shifts both voltage and power capability - making the C2V0X uniquely suited for ultra-low-current, tightly-toleranced 2.0 V reference needs.
Availability
BZT5250H-C2V0X is available at Aetrix Electronics and suitable for portable sensor biasing, microcontroller reset circuits, low-power ADC reference generation, and ESD-safe signal clamping requiring stable component supply across extended production lifecycles.
Supply support for BZT5250H-C2V0X 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 regulator portfolio, engineered specifically for battery-constrained and thermally sensitive applications where microampere-level bias stability and SMD manufacturability are critical.
FAQ
What is the exact Zener voltage tolerance and test condition for BZT5250H-C2V0X?
BZT5250H-C2V0X has a nominal Zener voltage of 2.0 V with ±2 % tolerance, measured at IZ = 50 µA and Tj = 25 °C. This low-current test condition ensures specification relevance for ultra-low-power applications, and the tolerance band is 1.96 V to 2.04 V under those conditions.
Can BZT5250H-C2V0X be used in forward conduction mode?
Yes - its forward voltage is specified at 0.9 V maximum at IF = 10 mA, and absolute maximum forward current is 200 mA. It functions reliably as a low-VF rectifier or protection diode, though its primary design intent is reverse-bias Zener regulation.
How does the SOD123F package affect thermal performance compared to SOD-123?
The SOD123F variant features flattened leads for improved coplanarity and solder joint reliability. Its Rth(j-sp) is 70 K/W (cathode solder point), identical to standard SOD-123, but the flatter profile enhances thermal transfer to the PCB pad - especially critical when operating near the 830 mW Ptot limit.
Is BZT5250H-C2V0X suitable for automotive applications?
No - this part is not AEC-Q200 qualified and lacks automotive-specific validation. Nexperia explicitly states non-automotive qualification in the legal disclaimers. For automotive use, select the AEC-Q200-qualified BZT52-B2V0 or equivalent automotive-grade Zener series.
BZT5250H-C2V0X 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):
- 2 V
- Tolerance:
- ±5%
- Power - Max:
- 375 mW
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 7 µA @ 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-C2V0X FAQ
1.How can I place an order for BZT5250H-C2V0X through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT5250H-C2V0X 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-C2V0X reliable?
The price and inventory of BZT5250H-C2V0X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT5250H-C2V0X is usually 5 days.
3.What payment methods are accepted for BZT5250H-C2V0X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT5250H-C2V0X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT5250H-C2V0X?
BZT5250H-C2V0X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT5250H-C2V0X 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-C2V0X?
For technical support, including BZT5250H-C2V0X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT5250H-C2V0X requirements.
6.How does Aetrix verify that BZT5250H-C2V0X is sourced from the original manufacturer or authorized distributors?
All BZT5250H-C2V0X 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-C2V0X meets industry standards.
7.What is the process for return or replacement of BZT5250H-C2V0X?
All BZT5250H-C2V0X units undergo pre-shipment inspection (PSI). If there is an issue with BZT5250H-C2V0X, 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-C2V0X part is unused and in its original packaging.
Return procedure for BZT5250H-C2V0X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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