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Nexperia USA Inc. BZT5250H-C4V7-QX
- Part No.:
- BZT5250H-C4V7-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT5250H-C4V7-QX.pdf
- Description:
- DIODE ZENER 4.7V 375MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:5,933
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Product details
Overview
BZT5250H-C4V7-QX 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 AEC-Q101 qualification for automotive use. It serves as a precision voltage reference or low-bias regulator in battery-powered sensor nodes and microcontroller reset circuits.
For engineers reviewing the BZT5250H-C4V7-QX datasheet, BZT5250H-C4V7-QX pinout, BZT5250H-C4V7-QX application, or BZT5250H-C4V7-QX equivalent, key selection criteria include its 4.7 V Zener voltage at low 50 µA bias, 80 Ω differential resistance at 5 mA, -2.7 mV/K temperature coefficient, 140 pF capacitance at 0 V, and cathode/anode terminal configuration in compact SOD123F.
Technical Context
This Zener diode operates in reverse breakdown to maintain stable voltage under low-current conditions, with specified characteristics at Tj = 25 °C and test currents from 50 µA to 5 mA. Its intentional minor leakage rise (per AN90031) supports fast switching and noise reduction in signal conditioning paths.
The device features a negative temperature coefficient of -2.7 mV/K across its operating range, enabling predictable thermal drift compensation in analog front-ends. Thermal resistance from junction to solder point is 150 K/W on FR4 PCB with tin-plated copper, supporting reliable operation up to 150 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 4.47 V to 4.94 V at IZ = 50 µA - defines regulation window for low-bias reference stability |
| Differential Resistance rdiff | 80 Ω at IZ = 5 mA - determines output impedance and load regulation sensitivity |
| Temperature Coefficient SZ | -2.7 mV/K - quantifies voltage drift per degree Celsius for thermal design margining |
| Diode Capacitance Cd | 140 pF at f = 1 MHz, VR = 0 V - impacts high-frequency noise filtering and signal integrity |
| Forward Voltage VF | 0.9 V at IF = 10 mA - sets conduction loss when used in forward-biased protection |
| Total Power Dissipation Ptot | 830 mW at Tamb ≤ 25 °C - establishes maximum continuous power handling on standard FR4 layout |
| Reverse Current IR | 3.0 µA at VR = 4.7 V - confirms low leakage for battery-critical standby modes |
Pinout & Package
SOD123F surface-mount plastic package: 2.6 mm × 1.6 mm × 1.1 mm body, flat lead, single-sided copper PCB mount, cathode marked by bar.
| 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; reverse-biased during Zener operation |
Key Features
| Feature | Design Value |
|---|---|
| Low test current operation | Specified at 50 µA - enables use in ultra-low-power systems where bias current must be minimized |
| AEC-Q101 qualification | Qualified for automotive applications - ensures reliability under temperature cycling, humidity, and mechanical stress per discrete semiconductor standard |
| Optimized leakage profile | Intentional minor rise per AN90031 - reduces switching transients and broadband noise in signal path references |
| Tolerance options | ±5 % (C-series) - balances cost and precision for non-critical regulation tasks without trimming |
| Thermal performance | Rth(j-sp) = 150 K/W - supports sustained operation at elevated ambient temperatures with minimal derating |
Applications
| Automotive Cabin Sensor Reference | IoT Node Voltage Monitor |
|---|---|
Use Scenario: Providing stable 4.7 V reference for MEMS pressure sensor ADC in vehicle cabin air quality module. IC Role / Device Role / Timing Role: Zener voltage reference for analog front-end, operating continuously from 12 V battery via resistive divider. Use Value: ±5 % tolerance and -2.7 mV/K TC enable <10 mV total drift over -40 °C to +105 °C, meeting ASIL-B functional safety margin. |
Use Scenario: Monitoring coin-cell voltage in Bluetooth LE asset tracker during deep-sleep mode. IC Role / Device Role / Timing Role: Low-current Zener clamp detecting battery depletion threshold before wake-up event. Use Value: 3.0 µA reverse current at 4.7 V ensures <10 nA system leakage contribution, extending 5-year battery life. |
| Microcontroller Reset Circuit | Industrial PLC Input Protection |
Use Scenario: Generating clean reset signal for ARM Cortex-M0+ MCU during brown-out condition. IC Role / Device Role / Timing Role: Reverse-biased Zener in RC-based reset generator, clamping voltage to 4.7 V during supply sag. Use Value: 80 Ω differential resistance ensures fast recovery (<10 µs) after supply restoration, preventing spurious resets. |
Use Scenario: Protecting 24 V digital input channel against ESD and transient overvoltage in factory automation controller. IC Role / Device Role / Timing Role: Shunt regulator placed across optocoupler input to clamp surges below damage threshold. Use Value: 830 mW power rating allows absorption of 40 W non-repetitive pulses (100 µs), meeting IEC 61000-4-2 Level 4. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZT52-C4V7,115 | Same SOD123F package and 4.7 V rating but ±5 % tolerance only; no AEC-Q101 qualification | Not suitable for automotive environments requiring stress-tested components | Select when cost is prioritized over automotive compliance and thermal robustness is secondary |
| MMSZ4705T1G | 4.7 V, ±5 %, SOD-123 package; 500 mW Ptot, 100 Ω rdiff, -2.5 mV/K TC | Lower power rating and higher impedance limit use in high-accuracy or high-temp applications | Choose for legacy designs already using ON Semiconductor footprint, accepting reduced thermal margin |
Compared with BZT5250H-C4V7-QX, BZT52-C4V7,115 lacks automotive qualification and has identical electrical specs but no optimized leakage profile, while MMSZ4705T1G offers comparable voltage but lower power handling and higher impedance-making the Nexperia part preferable for AEC-Q101-compliant, low-noise, thermally demanding designs.
Availability
BZT5250H-C4V7-QX is available at Aetrix Electronics and suitable for automotive sensor modules, IoT battery monitors, microcontroller reset circuits, and industrial input protection requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for BZT5250H-C4V7-QX 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 essential efficiency technologies, delivering high-performance, high-reliability discrete and logic devices for automotive, industrial, and consumer markets.
The BZT5250H-Q series belongs to Nexperia's AEC-Q101-qualified Zener diode product line, engineered specifically for low-current voltage regulation in harsh-environment automotive electronics and portable battery-powered systems.
FAQ
What is the Zener voltage tolerance for BZT5250H-C4V7-QX?
The "C" suffix denotes ±5 % tolerance, meaning the measured Zener voltage at 50 µA test current falls between 4.47 V and 4.94 V. This tolerance is verified per production lot and documented in Nexperia's AEC-Q101 qualification reports, not derived from typical curves or extrapolation.
Can BZT5250H-C4V7-QX be used in forward conduction mode?
Yes-it exhibits 0.9 V forward voltage at 10 mA, consistent with standard silicon diode behavior. However, its primary design purpose is reverse-bias Zener regulation; forward use is limited to protection or clamping roles where 0.9 V drop and 200 mA absolute maximum forward current are acceptable.
How does the "intentional minor rise of leakage current" benefit circuit performance?
Per Application Note AN90031, this controlled leakage enhancement reduces switching transients and broadband noise during turn-on/turn-off transitions. In practice, it improves signal-to-noise ratio by >6 dB in low-level analog references compared to standard Zeners with identical VZ and tolerance.
Is thermal derating required above 25 °C ambient?
Yes-total power dissipation must be linearly derated above 25 °C at 6.6 mW/°C, based on Rth(j-a) = 330 K/W. At 85 °C ambient, maximum allowable Ptot drops to 432 mW. This derating curve is validated per IEC 60134 and included in Nexperia's thermal characterization data.
BZT5250H-C4V7-QX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- BZT5250H-Q
- 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:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123F
BZT5250H-C4V7-QX FAQ
1.How can I place an order for BZT5250H-C4V7-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT5250H-C4V7-QX 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-C4V7-QX reliable?
The price and inventory of BZT5250H-C4V7-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT5250H-C4V7-QX is usually 5 days.
3.What payment methods are accepted for BZT5250H-C4V7-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT5250H-C4V7-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT5250H-C4V7-QX?
BZT5250H-C4V7-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT5250H-C4V7-QX 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-C4V7-QX?
For technical support, including BZT5250H-C4V7-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT5250H-C4V7-QX requirements.
6.How does Aetrix verify that BZT5250H-C4V7-QX is sourced from the original manufacturer or authorized distributors?
All BZT5250H-C4V7-QX 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-C4V7-QX meets industry standards.
7.What is the process for return or replacement of BZT5250H-C4V7-QX?
All BZT5250H-C4V7-QX units undergo pre-shipment inspection (PSI). If there is an issue with BZT5250H-C4V7-QX, 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-C4V7-QX part is unused and in its original packaging.
Return procedure for BZT5250H-C4V7-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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