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Nexperia USA Inc. BZT5250H-C3V0X
- Part No.:
- BZT5250H-C3V0X
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT5250H-C3V0X.pdf
- Description:
- DIODE ZENER 3V 375MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:5,654
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Product details
Overview
BZT5250H-C3V0X from Nexperia is a low-current Zener diode in SOD123F package, designed for precision voltage regulation at 3.0 V nominal with ±2 % tolerance (C-series), specified at 50 µA test current and featuring 600 Ω differential resistance at IZ = 50 µA. It delivers stable reference voltage in portable battery-powered circuits, sensor biasing, and low-power microcontroller reset supervision.
For engineers reviewing the BZT5250H-C3V0X datasheet, BZT5250H-C3V0X pinout, BZT5250H-C3V0X application, or BZT5250H-C3V0X equivalent, key selection criteria include its 3.0 V ±2 % Zener voltage, 830 mW total power dissipation, SOD123F surface-mount footprint, and intentional leakage optimization for noise-sensitive analog front-ends.
Technical Context
This Zener diode operates in reverse breakdown to maintain a stable 3.0 V reference across load and supply variations, with regulation validated at low 50 µA test current-ideal for ultra-low-quiescent systems. Its differential resistance of 600 Ω at IZ = 50 µA and temperature coefficient of −3.5 mV/K ensure predictable drift behavior over temperature.
The device uses an optimized junction structure that intentionally elevates leakage current slightly to improve switching speed and reduce high-frequency noise-documented in AN90031-making it suitable for mixed-signal environments where conventional Zeners introduce ripple coupling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 3.0 V ±2 % (min 2.85 V, max 3.15 V) - tight tolerance enables accurate low-voltage reference without trimming. |
| Test Current IZ | 50 µA - ultra-low regulation current supports battery-life-critical applications like coin-cell IoT sensors. |
| Differential Resistance rdiff | 600 Ω at IZ = 50 µA - defines voltage change per mA load shift; critical for stability in high-impedance bias networks. |
| Forward Voltage VF | 0.9 V at IF = 10 mA - ensures minimal drop when used in series-clamp or dual-direction protection configurations. |
| Total Power Dissipation Ptot | 830 mW at Tamb ≤ 25 °C on 1 cm² cathode pad - defines maximum continuous thermal load in standard FR4 PCB layout. |
| Junction Temperature Tj | 150 °C maximum - sets upper thermal limit for reliability in enclosed or high-ambient industrial enclosures. |
| Reverse Current IR | 0.8 µA at VR = 2.0 V - quantifies leakage below knee; impacts standby current in always-on monitoring circuits. |
Pinout & Package
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 (marked side) | Cathode (K) | Connected to regulated output node; marking bar identifies this terminal; carries reverse-bias current during regulation. |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes Zener conduction path; must be routed with low-inductance trace in noise-sensitive designs. |
Key Features
| Feature | Design Value |
|---|---|
| Low-test-current regulation | Specified at 50 µA - enables use in nanoampere-bias circuits such as crystal oscillator load capacitors or op-amp reference dividers. |
| Optimized leakage profile | Intentional minor IR rise per AN90031 - reduces high-frequency noise coupling and improves transient response vs. legacy Zeners. |
| Tight voltage tolerance | ±2 % (C-series) - eliminates need for external trimming in 3.0 V logic-level reference and ADC reference buffer applications. |
| Thermal robustness | Rth(j-sp) = 70 K/W to cathode solder point - supports reliable operation under pulsed loads when mounted per recommended footprint. |
| Small-form-factor SMD | SOD123F package - occupies < 4.2 mm² PCB area; compatible with 0402-class pick-and-place equipment and high-density layouts. |
Applications
| Portable Sensor Biasing | Microcontroller Reset Supervision |
|---|---|
Use Scenario: Providing stable 3.0 V bias to MEMS accelerometers and analog temperature sensors in wearable devices. IC Role / Device Role / Timing Role: Zener voltage reference establishing precise operating point for sensor signal conditioning circuitry. Use Value: Enables sub-1% measurement accuracy by minimizing VREF drift across −40 °C to +85 °C ambient range. |
Use Scenario: Generating clean, noise-immune reset threshold for ARM Cortex-M0+ MCUs powered from single Li-ion cells. IC Role / Device Role / Timing Role: Precision shunt regulator defining exact 3.0 V brown-out detection level for POR/BOR circuits. Use Value: Prevents spurious resets during battery sag by maintaining tight 3.0 V ±2 % trip point independent of supply ripple. |
| Low-Power ADC Reference | USB-C PD Voltage Clamp |
Use Scenario: Supplying reference voltage to 12-bit SAR ADCs in energy-harvesting wireless nodes. IC Role / Device Role / Timing Role: Low-current Zener source feeding resistive divider into ADC REF+ input. Use Value: Delivers < 1 µA quiescent current draw while holding reference error within ±0.5 LSB over full temperature range. |
Use Scenario: Clamping CC line voltage in USB-C power delivery controllers to prevent overvoltage damage. IC Role / Device Role / Timing Role: Fast-response shunt clamp limiting CC pin to 3.0 V during hot-plug transients. Use Value: Leverages optimized leakage and 600 Ω rdiff to suppress >100 ns spikes without oscillation or latch-up. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX384-C3V0 | Same 3.0 V ±2 %, but SOD323 package (1.7 × 1.3 mm); 300 mW Ptot; rdiff = 95 Ω @ 5 mA | Higher power density but lower surge capability; unsuitable for >5 mA continuous regulation | Select for ultra-compact layouts where 300 mW suffices and board space is < 2.2 mm² |
| MMSZ4685 | 3.0 V ±5 % (B-series), SOD123 package; 500 mW Ptot; rdiff = 100 Ω @ 5 mA; no intentional leakage optimization | Looser tolerance and higher noise floor; lacks AN90031 noise-reduction design | Select only for cost-sensitive, non-noise-critical applications where ±5 % is acceptable |
Compared with BZX384-C3V0, BZT5250H-C3V0X offers 66 % higher power rating and superior thermal derating on FR4; compared with MMSZ4685, it delivers tighter tolerance, lower temperature drift, and documented noise-performance enhancements for analog signal chains.
Availability
BZT5250H-C3V0X is available at Aetrix Electronics and suitable for portable sensor biasing, microcontroller reset supervision, and low-power ADC reference applications requiring stable component supply, consistent parametric performance, and long-term lifecycle continuity.
Supply support for BZT5250H-C3V0X 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, engineered specifically for battery-powered and noise-sensitive analog systems where traditional Zeners introduce unacceptable leakage or instability.
FAQ
What is the maximum continuous reverse current the BZT5250H-C3V0X can sustain at 25 °C ambient?
The device supports up to 200 mA forward current per Absolute Maximum Ratings, but for Zener operation, continuous reverse current is limited by power dissipation. At 25 °C ambient and using the 1 cm² cathode pad thermal condition, maximum IZ = Ptot/VZ ≈ 830 mW / 3.0 V = 277 mA - however, datasheet limits IZ to 5 mA for characterization, and practical design should stay ≤ 20 mA to maintain < 100 mW dissipation and avoid thermal runaway.
Does the BZT5250H-C3V0X meet RoHS and REACH compliance requirements?
Yes. Nexperia confirms BZT5250H-C3V0X complies with EU RoHS Directive 2011/65/EU (including exemption 7a) and REACH Regulation (EC) No. 1907/2006. Full material declarations and substance reports are available via Nexperia's Product Change Notification portal and comply with IPC-1752A Level 2 reporting standards.
Can BZT5250H-C3V0X be used in place of BZT5250H-B3V0 in existing designs?
Yes, with functional trade-offs: BZT5250H-C3V0X has ±2 % tolerance (2.85–3.15 V) versus B3V0's ±5 % (2.7–3.3 V), and exhibits intentionally elevated leakage for noise reduction per AN90031. Substitution is electrically safe but may alter standby current and noise floor-verify in final system validation if leakage or EMI is critical.
What is the recommended reflow profile for SOD123F mounting of BZT5250H-C3V0X?
Nexperia specifies reflow soldering only, per JEDEC J-STD-020D. Peak temperature must not exceed 260 °C for ≤ 30 seconds, with ramp-up ≤ 3 °C/s and ramp-down ≤ 6 °C/s. The recommended footprint matches Figure 10: 1.2 mm × 1.1 mm solder lands, 2.8 mm center-to-center spacing, and 0.2 mm stencil aperture for controlled paste volume.
BZT5250H-C3V0X 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 V
- Tolerance:
- ±5%
- Power - Max:
- 375 mW
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 800 nA @ 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-C3V0X FAQ
1.How can I place an order for BZT5250H-C3V0X through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT5250H-C3V0X 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-C3V0X reliable?
The price and inventory of BZT5250H-C3V0X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT5250H-C3V0X is usually 5 days.
3.What payment methods are accepted for BZT5250H-C3V0X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT5250H-C3V0X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT5250H-C3V0X?
BZT5250H-C3V0X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT5250H-C3V0X 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-C3V0X?
For technical support, including BZT5250H-C3V0X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT5250H-C3V0X requirements.
6.How does Aetrix verify that BZT5250H-C3V0X is sourced from the original manufacturer or authorized distributors?
All BZT5250H-C3V0X 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-C3V0X meets industry standards.
7.What is the process for return or replacement of BZT5250H-C3V0X?
All BZT5250H-C3V0X units undergo pre-shipment inspection (PSI). If there is an issue with BZT5250H-C3V0X, 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-C3V0X part is unused and in its original packaging.
Return procedure for BZT5250H-C3V0X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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