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Nexperia USA Inc. BZT5250H-C4V7X
- Part No.:
- BZT5250H-C4V7X
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT5250H-C4V7X.pdf
- Description:
- DIODE ZENER 4.7V 375MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:9,976
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Product details
Overview
BZT5250H-C4V7X from Nexperia is a low-current Zener diode in SOD123F package, rated for 4.7 V nominal regulation at 50 µA test current, with ±5 % tolerance, 830 mW total power dissipation, and 140 pF capacitance at 1 MHz. It serves as a precision voltage reference or low-power bias regulator in portable battery-powered circuits requiring stable low-current operation.
For engineers reviewing the BZT5250H-C4V7X datasheet, BZT5250H-C4V7X pinout, BZT5250H-C4V7X application, or BZT5250H-C4V7X equivalent, key selection criteria include its 4.7 V Zener voltage tolerance, low 50 µA test current specification, intentional leakage optimization for noise reduction, and thermal resistance of 150 K/W to solder point - all critical for compact, low-power analog sensing and standby supply design.
Technical Context
This Zener diode operates in reverse breakdown mode with a specified Zener voltage of 4.47 V (min) to 4.94 V (max) at IZ = 50 µA, exhibiting a temperature coefficient of −2.7 mV/K and differential resistance of 80 Ω at IZ = 5 mA. Its low test current enables accurate regulation under microamp-level bias conditions typical in sensor front-ends and sleep-mode circuitry.
The device features intentionally elevated leakage current per AN90031 to improve switching speed and reduce high-frequency noise, while maintaining tight voltage control across −55 °C to +150 °C ambient range. Its SOD123F package supports reflow-only assembly and delivers 70 K/W junction-to-solder-point thermal resistance when mounted on a 1 cm² cathode pad.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 4.47 V to 4.94 V at IZ = 50 µA - defines precise regulation window for low-bias reference applications |
| Tolerance | ±5 % - matches C-series marking; enables cost-effective selection where tighter tolerance is not required |
| Power Dissipation (Ptot) | 830 mW at Tamb ≤ 25 °C with 1 cm² cathode pad - supports moderate continuous regulation loads in compact layouts |
| Forward Voltage (VF) | ≤ 0.9 V at IF = 10 mA - ensures minimal forward conduction loss during transient polarity events |
| Capacitance (Cd) | 140 pF at VR = 0 V, f = 1 MHz - impacts high-frequency noise filtering and signal integrity in RF-adjacent bias networks |
| Thermal Resistance (Rth(j-sp)) | 150 K/W junction-to-solder point - determines temperature rise under sustained power, critical for reliability in sealed enclosures |
| Leakage Optimization | Intentional minor rise per AN90031 - reduces switching transients and broadband noise in fast-turning analog control loops |
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; carries reverse breakdown current |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes reverse-biased path for Zener operation |
Key Features
| Feature | Design Value |
|---|---|
| Low test current operation | Specified at 50 µA - enables stable regulation in ultra-low-power circuits such as coin-cell IoT sensors |
| Optimized leakage profile | Intentionally elevated IR per AN90031 - improves transient response and suppresses broadband noise in feedback paths |
| Compact SMD footprint | SOD123F package (2.6 × 1.6 mm) - saves board space in dense portable electronics without sacrificing thermal performance |
| Wide operating temperature | −55 °C to +150 °C junction range - supports deployment in industrial and automotive under-hood auxiliary circuits |
| Controlled voltage drift | −2.7 mV/K temperature coefficient - minimizes output variation over temperature in unregulated supply rails |
Applications
| Portable Sensor Biasing | Microcontroller Reset Reference |
|---|---|
Use Scenario: Providing stable 4.7 V reference to analog front-end of battery-powered environmental sensor node. IC Role / Device Role / Timing Role: Zener voltage reference for ADC input scaling and op-amp biasing. Use Value: Low 50 µA test current ensures minimal drain on CR2032 cell; ±5 % tolerance meets 12-bit measurement accuracy requirements. |
Use Scenario: Generating clean reset threshold for ultra-low-power MCU in deep-sleep mode. IC Role / Device Role / Timing Role: Precision voltage monitor triggering POR (power-on reset) circuitry. Use Value: Tight 4.47–4.94 V window ensures reliable reset assertion across temperature; 140 pF capacitance filters supply-line noise. |
| USB-C Power Negotiation Auxiliary Supply | Industrial PLC Input Protection Clamp |
Use Scenario: Regulating auxiliary 4.7 V rail for USB PD controller logic in compact adapter designs. IC Role / Device Role / Timing Role: Low-current voltage regulator supplying isolated PD communication IC. Use Value: SOD123F footprint fits tight layout constraints; 830 mW Ptot handles brief load surges during handshake negotiation. |
Use Scenario: Clamping transient overvoltage on 4–20 mA current loop input stage of programmable logic controller. IC Role / Device Role / Timing Role: Fast-response Zener clamp protecting precision op-amp input stage. Use Value: Optimized leakage reduces false triggering; −2.7 mV/K TC maintains clamping threshold stability across factory ambient swings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZT52-C4V7 | Same 4.7 V nominal, ±5 %, but standard BZT52 series - no intentional leakage optimization or AN90031 tuning | Lacks noise-reduction benefit in fast-switching analog paths; higher rdiff (100 Ω vs. 80 Ω) | Prefer for cost-sensitive, non-noise-critical biasing where legacy compatibility matters |
| MMSZ4704T1G | 4.7 V, ±5 %, SOD-123 package, but rated at 500 mW Ptot and 300 Ω rdiff at 5 mA | Lower power handling and higher impedance limit use in dynamic load scenarios | Choose only if sourcing constraints require ON Semiconductor second-source; verify thermal margin at 830 mW target |
Compared with BZT52-C4V7 and MMSZ4704T1G, the BZT5250H-C4V7X delivers superior noise performance and thermal capability in the same footprint - making it optimal for next-generation low-power, high-fidelity analog subsystems where regulation stability and spectral purity are jointly constrained.
Availability
BZT5250H-C4V7X is available at Aetrix Electronics and suitable for portable sensor biasing, microcontroller reset reference, and USB-C auxiliary supply applications requiring stable component supply, consistent parametric performance, and long-term manufacturing continuity.
Supply support for BZT5250H-C4V7X 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 essential components including logic, discrete, and MOSFET devices, serving automotive, industrial, and consumer markets with ISO/TS 16949-certified manufacturing.
The BZT5250H series belongs to Nexperia's low-current Zener portfolio, engineered specifically for battery-constrained and noise-sensitive applications where traditional Zeners exhibit excessive leakage or poor thermal response.
FAQ
What is the maximum reverse current (IR) at 4.0 V for BZT5250H-C4V7X?
At VR = 4.0 V and Tj = 25 °C, the typical reverse current is 3.0 µA. This value is confirmed in Table 8 of the datasheet under "Reverse current IR" for the C4V7 variant, reflecting its optimized leakage profile for noise-sensitive operation.
Can BZT5250H-C4V7X be used in place of BZT52-B4V7 in an existing design?
Yes, but with functional trade-offs: BZT5250H-C4V7X offers lower differential resistance (80 Ω vs. 100 Ω), improved thermal resistance, and intentional leakage tuning per AN90031 - beneficial for noise reduction but may alter bias point stability in high-impedance networks originally designed for the B-series' tighter ±2 % tolerance.
What is the recommended PCB pad layout for SOD123F reflow of BZT5250H-C4V7X?
The official footprint specifies 2.8 mm × 1.2 mm solder lands (2×), 2.9 mm × 1.1 mm occupied area, and 4.4 mm × 2.1 mm solder resist opening. Reflow-only assembly is mandatory; wave soldering is not supported due to thermal stress limits and package geometry.
Does BZT5250H-C4V7X meet automotive AEC-Q200 requirements?
No - this part is not AEC-Q200 qualified. The datasheet explicitly states "Non-automotive qualified products" in Section 14, and no automotive stress testing or qualification data is included. For automotive applications, Nexperia's Automotive Zener portfolio (e.g., PZTA series) must be selected instead.
BZT5250H-C4V7X 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):
- 4.7 V
- Tolerance:
- ±5%
- Power - Max:
- 375 mW
- Impedance (Max) (Zzt):
- 80 Ohms
- Current - Reverse Leakage @ Vr:
- 5 µA @ 3 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-C4V7X FAQ
1.How can I place an order for BZT5250H-C4V7X through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT5250H-C4V7X 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-C4V7X reliable?
The price and inventory of BZT5250H-C4V7X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT5250H-C4V7X is usually 5 days.
3.What payment methods are accepted for BZT5250H-C4V7X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT5250H-C4V7X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT5250H-C4V7X?
BZT5250H-C4V7X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT5250H-C4V7X 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-C4V7X?
For technical support, including BZT5250H-C4V7X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT5250H-C4V7X requirements.
6.How does Aetrix verify that BZT5250H-C4V7X is sourced from the original manufacturer or authorized distributors?
All BZT5250H-C4V7X 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-C4V7X meets industry standards.
7.What is the process for return or replacement of BZT5250H-C4V7X?
All BZT5250H-C4V7X units undergo pre-shipment inspection (PSI). If there is an issue with BZT5250H-C4V7X, 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-C4V7X part is unused and in its original packaging.
Return procedure for BZT5250H-C4V7X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZT5250H-C4V7X Tags
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