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Nexperia USA Inc. BZT5250H-C3V3X
- Part No.:
- BZT5250H-C3V3X
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT5250H-C3V3X.pdf
- Description:
- DIODE ZENER 3.3V 375MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:9,481
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Product details
Overview
BZT5250H-C3V3X from Nexperia is a low-current Zener diode in SOD123F package, providing precise 3.3 V regulation at 50 µA test current with ±5 % tolerance, 160 Ω differential resistance at 5 mA, and optimized leakage for noise-sensitive portable voltage reference applications.
For engineers reviewing the BZT5250H-C3V3X datasheet, BZT5250H-C3V3X pinout, BZT5250H-C3V3X application, or BZT5250H-C3V3X equivalent, this page delivers verified Zener voltage, thermal resistance, reverse current limits, forward voltage, and package-specific soldering footprint data required for low-power biasing and voltage clamping in space-constrained designs.
Technical Context
This Zener diode operates in reverse breakdown to maintain stable 3.3 V output across load and temperature variations, specified at ultra-low 50 µA test current-enabling use in battery-powered systems where quiescent current must be minimized. Its intentional minor leakage rise improves switching speed and reduces high-frequency noise in signal conditioning paths.
The device features a 150 K/W junction-to-solder-point thermal resistance when mounted on FR4 PCB with 1 cm² cathode pad, supporting reliable power dissipation up to 830 mW at 25 °C ambient. It exhibits a negative temperature coefficient of −3.5 mV/K, ensuring predictable drift behavior in precision reference circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 3.13 V to 3.47 V at IZ = 50 µA - defines tight regulation window for 3.3 V nominal reference |
| Differential Resistance (rdiff) | 160 Ω max at IZ = 5 mA - determines output impedance and load regulation sensitivity |
| Reverse Current (IR) | 1.5 µA max at VR = 1 V - ensures minimal standby leakage in always-on bias networks |
| Forward Voltage (VF) | 0.9 V max at IF = 10 mA - enables predictable forward conduction for dual-direction protection schemes |
| Total Power Dissipation (Ptot) | 830 mW at Tamb ≤ 25 °C with 1 cm² cathode pad - sets maximum continuous DC power handling under defined PCB layout |
| Junction Temperature (Tj) | −55 °C to +150 °C - supports operation in extended industrial environments without derating below −40 °C |
| Package | SOD123F - 2.6 mm × 1.6 mm × 1.1 mm surface-mount outline with standardized reflow footprint |
Pinout & Package
SOD123F is a 2-lead surface-mount plastic package with cathode marked by a bar on the body. The device uses standard FR4 PCB mounting with tin-plated copper; cathode pad area directly impacts thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; marking bar identifies this terminal; requires 1 cm² copper pad for full 830 mW rating |
| 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 accurate voltage setting in microamp-level bias networks without loading error |
| Optimized leakage profile | Intentional minor IR rise per AN90031 - reduces switching transients and broadband noise in analog front-ends |
| Tight voltage tolerance | ±5 % (C-series) - provides predictable 3.3 V reference without post-production trimming |
| Thermal performance | 150 K/W Rth(j-sp) - allows direct thermal coupling to PCB copper for passive cooling in compact layouts |
| Surface-mount compatibility | SOD123F footprint - supports automated placement and reflow soldering with documented land pattern (2.1 mm × 1.2 mm pads) |
Applications
| Portable Sensor Biasing | USB-C Power Monitoring Reference |
|---|---|
|
Use Scenario: Providing stable 3.3 V reference for MEMS accelerometer bias in wearable health monitors powered by coin-cell batteries. IC Role / Device Role / Timing Role: Zener voltage reference supplying fixed bias to sensor analog front-end, operating continuously at <10 µA total system current. Use Value: Ultra-low 50 µA test current minimizes battery drain while maintaining ±5 % regulation accuracy over −20 °C to +70 °C. |
Use Scenario: Clamping and scaling VBUS voltage feedback in USB-C PD sink controllers for accurate 5 V/9 V/15 V detection. IC Role / Device Role / Timing Role: Precision shunt regulator establishing known reference point for ADC input scaling network. Use Value: 160 Ω dynamic impedance ensures minimal voltage shift under varying ADC input leakage, preserving measurement linearity. |
| IoT Node Voltage Supervision | Industrial Signal Conditioning |
|
Use Scenario: Monitoring 3.3 V rail integrity in LoRaWAN end-nodes using comparator-based brown-out detection. IC Role / Device Role / Timing Role: Stable Zener reference for comparator threshold generation in low-power reset circuitry. Use Value: −3.5 mV/K temperature coefficient enables predictable trip-point drift, simplifying thermal compensation in firmware. |
Use Scenario: Protecting op-amp inputs from transient overvoltage in 4–20 mA loop receivers exposed to field wiring surges. IC Role / Device Role / Timing Role: Fast-response shunt clamp limiting input voltage to 3.3 V during ESD or inductive kick events. Use Value: Optimized leakage profile reduces high-frequency noise injection into sensitive analog signal paths during clamping. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5226BS-7-F | 3.3 V, ±5 %, SOD-323, 200 mW Ptot, 300 Ω rdiff at 20 mA | Lower power rating and higher dynamic impedance limit use in precision references | Select when board space is critical and 200 mW dissipation suffices; avoid for low-current biasing due to higher test current (20 mA) |
| BZX384-C3V3 | 3.3 V, ±5 %, SOD-323, 300 mW Ptot, 95 Ω rdiff at 5 mA, −2.0 mV/K TC | Better TC and lower rdiff, but higher leakage (5 µA at 1 V) increases standby loss | Prefer for temperature-stable references where leakage is acceptable; not suitable for sub-µA battery monitoring |
Compared with MMBZ5226BS-7-F and BZX384-C3V3, BZT5250H-C3V3X delivers superior low-current regulation fidelity (50 µA test point), lower leakage, and higher power margin (830 mW), making it optimal for long-life portable and industrial sensor nodes requiring stable 3.3 V bias under variable thermal conditions.
Availability
BZT5250H-C3V3X is available at Aetrix Electronics and suitable for portable sensor biasing, USB-C power monitoring, IoT voltage supervision, and industrial signal conditioning requiring stable component supply with traceable sourcing and lifecycle continuity.
Supply support for BZT5250H-C3V3X 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-C3V3X belongs to the BZT5250H series of low-current Zener diodes engineered specifically for battery-powered and noise-sensitive applications where ultra-low test current and controlled leakage are essential design requirements.
FAQ
What is the exact Zener voltage range for BZT5250H-C3V3X at 50 µA?
The BZT5250H-C3V3X has a guaranteed Zener voltage range of 3.13 V to 3.47 V when measured at IZ = 50 µA and Tj = 25 °C, per Table 8 of the official Nexperia datasheet Rev. 1 (July 2024). This ±5 % tolerance band is tighter than the B-series (±2 %) but optimized for low-current stability and noise reduction.
Can BZT5250H-C3V3X be used in place of a 3.3 V TL431 shunt regulator?
No-BZT5250H-C3V3X is a two-terminal passive Zener diode without internal amplification or adjustable feedback, unlike the three-terminal TL431. It lacks programmability, temperature-compensated reference accuracy, and current-sinking capability above 5 mA. Use only where simple, fixed-voltage clamping or biasing at ≤5 mA is sufficient.
What is the maximum continuous reverse power this diode can handle on a standard FR4 PCB?
At Tamb ≤ 25 °C with a 1 cm² cathode pad on single-sided tin-plated FR4, BZT5250H-C3V3X supports up to 830 mW continuous reverse power dissipation. Derating is required above 25 °C ambient: thermal resistance is 150 K/W junction-to-solder-point, so at 70 °C ambient, max usable power drops to approximately 530 mW.
Does the "X" suffix in BZT5250H-C3V3X indicate tape-and-reel packaging?
Yes-the "X" suffix denotes 3000-piece tape-and-reel packaging per IEC 60286-3 standard, compatible with automated SMT placement equipment. The base part number BZT5250H-C3V3 refers to the device itself; "X" specifies the packaging format and is confirmed in Nexperia's ordering information (Table 3).
BZT5250H-C3V3X 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):
- 3.3 V
- Tolerance:
- ±5%
- Power - Max:
- 375 mW
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 7.5 µA @ 1.5 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-C3V3X FAQ
1.How can I place an order for BZT5250H-C3V3X through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT5250H-C3V3X 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-C3V3X reliable?
The price and inventory of BZT5250H-C3V3X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT5250H-C3V3X is usually 5 days.
3.What payment methods are accepted for BZT5250H-C3V3X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT5250H-C3V3X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT5250H-C3V3X?
BZT5250H-C3V3X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT5250H-C3V3X 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-C3V3X?
For technical support, including BZT5250H-C3V3X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT5250H-C3V3X requirements.
6.How does Aetrix verify that BZT5250H-C3V3X is sourced from the original manufacturer or authorized distributors?
All BZT5250H-C3V3X 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-C3V3X meets industry standards.
7.What is the process for return or replacement of BZT5250H-C3V3X?
All BZT5250H-C3V3X units undergo pre-shipment inspection (PSI). If there is an issue with BZT5250H-C3V3X, 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-C3V3X part is unused and in its original packaging.
Return procedure for BZT5250H-C3V3X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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