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Nexperia USA Inc. BZT5250H-C3V0-QX
- Part No.:
- BZT5250H-C3V0-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT5250H-C3V0-QX.pdf
- Description:
- DIODE ZENER 3V 375MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:6,359
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Product details
Overview
BZT5250H-C3V0-Q from Nexperia is a low-current Zener diode in SOD123F package, designed for precision voltage regulation at 3.0 V nominal (±5 % tolerance), specified at 50 µA test current, with 830 mW total power dissipation and AEC-Q101 qualification for automotive use.
For engineers reviewing the BZT5250H-C3V0-Q datasheet, BZT5250H-C3V0-Q pinout, BZT5250H-C3V0-Q application, or BZT5250H-C3V0-Q equivalent, this device serves as a stable, low-bias voltage reference in battery-powered sensor nodes, automotive body electronics, and portable instrumentation where leakage-sensitive operation and thermal reliability are critical.
Technical Context
This Zener diode operates in reverse breakdown mode with a nominal regulated voltage of 3.0 V at IZ = 50 µA, exhibiting a differential resistance of ≤600 Ω at 5 mA and a temperature coefficient of −3.5 mV/K - indicating negative drift over temperature. Its low 0.8 µA max reverse current at VR = 1.0 V enables minimal quiescent load in standby circuits.
Designed for surface-mount applications on FR4 PCBs, it delivers 830 mW total power dissipation with Rth(j-a) = 330 K/W in free air and Rth(j-sp) = 150 K/W to solder point, supporting reliable thermal performance in compact automotive modules and space-constrained IoT endpoints.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 3.0 V ±5 % at IZ = 50 µA - defines precise regulation threshold for low-power biasing |
| Differential Resistance | ≤600 Ω at IZ = 5 mA - ensures stable output under small-signal load variations |
| Reverse Current | ≤0.8 µA at VR = 1.0 V - minimizes standby power loss in battery-critical systems |
| Total Power Dissipation | 830 mW at Tamb ≤ 25 °C - supports continuous operation without forced cooling in sealed enclosures |
| Forward Voltage | 0.9 V at IF = 10 mA - enables predictable clamping behavior in bidirectional protection schemes |
| Junction Temperature | −55 °C to +150 °C - meets extended-temperature requirements for under-hood automotive ECUs |
| AEC-Q101 Qualified | Yes - validated for automotive discrete semiconductor stress testing per AEC standard |
Pinout & Package
SOD123F plastic surface-mount 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 for correct PCB orientation |
| 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 regulation in micro-power sensor bias networks |
| Optimized leakage profile | Intentional minor rise in leakage for fast switching and noise reduction - improves transient response in feedback paths |
| Automotive-grade qualification | AEC-Q101 compliant - qualified for engine control, lighting, and ADAS subsystems requiring high-reliability discretes |
| Thermal robustness | Rth(j-sp) = 150 K/W - allows direct thermal coupling to copper pour for enhanced power handling in dense layouts |
Applications
| Automotive Body Control Module | Portable Gas Sensor Biasing |
|---|---|
Use Scenario: Stable 3.0 V reference for analog front-end of LIN-connected door module MCU. IC Role / Device Role / Timing Role: Zener voltage regulator providing clean supply rail for ADC reference and op-amp biasing. Use Value: Low 0.8 µA reverse current prevents battery drain during sleep mode; AEC-Q101 rating ensures 15-year field reliability. |
Use Scenario: Precision bias voltage for electrochemical CO sensor in handheld detector. IC Role / Device Role / Timing Role: Low-current Zener reference establishing fixed sensing electrode potential. Use Value: 3.0 V ±5 % tolerance and −3.5 mV/K tempco enable <±2 mV drift over −25 °C to +70 °C operating range. |
| Industrial PLC Input Protection | Medical Wearable Power Monitoring |
Use Scenario: Overvoltage clamp on 3.3 V digital input channel exposed to ESD transients. IC Role / Device Role / Timing Role: Reverse-biased Zener shunting surge energy while maintaining logic-level integrity. Use Value: 830 mW Ptot and 40 W non-repetitive peak power withstand capability absorb IEC 61000-4-2 contact discharge events. |
Use Scenario: Reference voltage source for battery voltage monitoring circuit in patch-style ECG monitor. IC Role / Device Role / Timing Role: Regulated 3.0 V supply for low-power comparator and ADC reference buffer. Use Value: SOD123F footprint minimizes board area; 0.9 V forward voltage enables safe bidirectional clamping during battery insertion. |
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 ±5 %, SOD323 package (1.7 × 1.3 mm), 300 mW Ptot, higher rdiff (≤1000 Ω) | Lower power handling; unsuitable for >150 mW continuous dissipation | Select when board space is tighter and thermal load is <100 mW |
| MMSZ5226ET1G | 3.0 V ±5 %, SOD123 package (same outline but no flat leads), 500 mW Ptot, 1000 mW peak pulse rating | No AEC-Q101 qualification; higher Rth(j-a) (400 K/W) | Select for cost-sensitive industrial designs where automotive qualification is not required |
Compared with BZT5250H-C3V0-Q, BZX384-C3V0 trades thermal capacity for size reduction, while MMSZ5226ET1G offers higher pulse robustness but lacks automotive qualification and thermal efficiency - making the BZT5250H-C3V0-Q optimal for thermally constrained, safety-critical automotive and medical applications.
Availability
BZT5250H-C3V0-Q is available at Aetrix Electronics and suitable for automotive body electronics, portable gas detection, industrial PLC input protection, and medical wearable power monitoring requiring stable component supply across extended temperature ranges and long lifecycle commitments.
Supply support for BZT5250H-C3V0-Q 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 semiconductors, with leadership in logic, discrete, and MOSFET technologies for automotive, industrial, and mobile markets.
The BZT5250H-Q series belongs to Nexperia's AEC-Q101-qualified Zener diode product line, engineered specifically for low-current, high-stability voltage regulation in automotive and portable electronics where leakage, thermal response, and qualification rigor are decisive.
FAQ
What is the maximum continuous power dissipation for BZT5250H-C3V0-Q at 70 °C ambient?
At Tamb = 70 °C, derated power dissipation is 550 mW, calculated using the 830 mW rating at 25 °C and thermal resistance Rth(j-a) = 330 K/W. Junction temperature remains within 150 °C limit under these conditions when mounted on standard FR4 PCB with single-sided copper.
How does the "C" suffix in BZT5250H-C3V0-Q affect its electrical behavior compared to "B"-suffix variants?
The "C" suffix denotes ±5 % tolerance and optimized leakage characteristics per AN90031 - specifically, a controlled minor rise in reverse current that improves switching speed and reduces noise in regulation loops, unlike the tighter ±2 % "B" variant which prioritizes voltage accuracy over dynamic response.
Can BZT5250H-C3V0-Q be used in bidirectional ESD protection configurations?
Yes - its 0.9 V forward voltage at 10 mA and symmetric SOD123F package allow implementation as a low-voltage bidirectional clamp when paired with a second identical device anode-to-anode, providing ±3.0 V regulation with sub-1 V turn-on in either polarity.
Is the SOD123F package compatible with standard reflow soldering profiles for lead-free assembly?
Yes - Nexperia specifies reflow soldering as the only recommended method, with footprint dimensions (2.9 mm × 1.6 mm pad length) aligned to IPC-7351B medium density. Peak temperature must not exceed 260 °C for ≤30 seconds, matching JEDEC J-STD-020D.3 Class 3 requirements.
BZT5250H-C3V0-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):
- 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:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123F
BZT5250H-C3V0-QX FAQ
1.How can I place an order for BZT5250H-C3V0-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT5250H-C3V0-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-C3V0-QX reliable?
The price and inventory of BZT5250H-C3V0-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-C3V0-QX is usually 5 days.
3.What payment methods are accepted for BZT5250H-C3V0-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT5250H-C3V0-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT5250H-C3V0-QX?
BZT5250H-C3V0-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT5250H-C3V0-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-C3V0-QX?
For technical support, including BZT5250H-C3V0-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT5250H-C3V0-QX requirements.
6.How does Aetrix verify that BZT5250H-C3V0-QX is sourced from the original manufacturer or authorized distributors?
All BZT5250H-C3V0-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-C3V0-QX meets industry standards.
7.What is the process for return or replacement of BZT5250H-C3V0-QX?
All BZT5250H-C3V0-QX units undergo pre-shipment inspection (PSI). If there is an issue with BZT5250H-C3V0-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-C3V0-QX part is unused and in its original packaging.
Return procedure for BZT5250H-C3V0-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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