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Nexperia USA Inc. BZT5250H-B3V6-QX
- Part No.:
- BZT5250H-B3V6-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT5250H-B3V6-QX.pdf
- Description:
- DIODE ZENER 3.6V 375MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:4,191
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Product details
Overview
BZT5250H-B3V6-QX from Nexperia is a low-current Zener diode in SOD123F package, designed for precision voltage regulation at 3.6 V nominal with ±2 % tolerance, 95 Ω differential resistance at 5 mA, and 2.0 µA reverse current at rated voltage - deployed in automotive body control modules, portable sensor biasing, and low-power MCU reference circuits.
For engineers reviewing the BZT5250H-B3V6-QX datasheet, BZT5250H-B3V6-QX pinout, BZT5250H-B3V6-QX application, or BZT5250H-B3V6-QX equivalent, this page delivers verified Zener voltage, thermal resistance (150 K/W junction-to-solder point), AEC-Q101 qualification status, and SOD123F footprint compatibility for production-grade automotive and battery-powered designs.
Technical Context
This Zener diode operates as a two-terminal shunt voltage regulator, maintaining stable 3.6 V output across load variations using reverse-biased breakdown conduction. It is characterized at 50 µA test current - enabling ultra-low quiescent current operation ideal for energy-constrained systems.
Its thermal design supports junction temperatures up to 150 °C and features Rth(j-sp) = 150 K/W to solder point, optimized for FR4 PCBs with tin-plated single-sided copper and 1 cm² cathode pad - ensuring predictable power derating in automotive under-hood environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 3.53 V to 3.67 V at IZ = 5 mA - ensures tight 3.6 V regulation for 3.3 V rail monitoring and reference buffering |
| Differential Resistance (rdiff) | 95 Ω max at IZ = 5 mA - limits output voltage shift under dynamic load changes in feedback networks |
| Reverse Current (IR) | 2.0 µA max at VR = 3.6 V - enables microamp-level standby leakage control in always-on circuits |
| Total Power Dissipation (Ptot) | 830 mW at Tamb ≤ 25 °C - supports continuous operation in compact SOD123F packages without forced cooling |
| Junction-to-Solder Point Thermal Resistance | 150 K/W - defines temperature rise per watt above ambient when mounted on standard FR4 with 1 cm² cathode pad |
| AEC-Q101 Qualification | Qualified for automotive discrete semiconductors - meets stress test requirements for temperature cycling, HTRB, and ESD robustness |
| Forward Voltage (VF) | 0.9 V max at IF = 10 mA - confirms low-loss forward conduction during transient overvoltage clamping |
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 (K) | Cathode | Connected to regulated output node; marking bar identifies this terminal for correct PCB orientation |
| 2 (A) | Anode | Connected to ground or lower-potential rail; completes reverse-bias path for Zener conduction |
Key Features
| Feature | Design Value |
|---|---|
| Low test current specification | Rated at 50 µA - enables accurate regulation in nanoamp-to-microamp bias networks without loading sensitive sources |
| Automotive-grade reliability | AEC-Q101 qualified - validated for temperature cycling (-55 °C to +150 °C), high-temperature reverse bias, and mechanical shock |
| Optimized leakage profile | Intentional minor leakage rise per AN90031 - improves switching speed and reduces noise in dynamic regulation paths |
| Compact thermal interface | Rth(j-sp) = 150 K/W - allows direct thermal coupling to PCB copper, simplifying thermal management in space-constrained modules |
Applications
| Automotive Body Control Unit (BCU) | Portable Gas Sensor Biasing |
|---|---|
Use Scenario: Stable 3.6 V reference for analog front-end of LIN bus-connected door module sensors. IC Role / Device Role / Timing Role: Shunt voltage regulator providing precision bias to op-amp input stages and ADC reference dividers. Use Value: Maintains <±10 mV regulation over -40 °C to +125 °C ambient, meeting ISO 16750-4 electrical load dump immunity requirements. |
Use Scenario: Low-power bias supply for electrochemical CO sensor requiring stable 3.6 V excitation in battery-operated handheld detectors. IC Role / Device Role / Timing Role: Zener-based voltage reference replacing higher-quiescent LDOs to extend 200 mAh coin cell life beyond 12 months. Use Value: Draws only 2.0 µA leakage at 3.6 V, reducing standby current by 85 % versus standard 3.3 V LDO solutions. |
| Industrial PLC Input Protection | Medical Wearable Reference Circuit |
Use Scenario: Overvoltage clamp and reference element in 24 V DC digital input stage of DIN-rail mounted programmable logic controller. IC Role / Device Role / Timing Role: Dual-function device acting as both transient suppressor (with series resistor) and precision threshold detector for optocoupler activation. Use Value: 95 Ω rdiff ensures <±15 mV trip-point variation across 0–10 mA input current range, improving digital input hysteresis accuracy. |
Use Scenario: Voltage reference for ultra-low-noise instrumentation amplifier in ECG patch monitor operating from 3.7 V LiPo battery. IC Role / Device Role / Timing Role: Low-noise Zener source feeding resistive divider that sets gain and offset of analog signal chain. Use Value: Optimized leakage profile per AN90031 reduces broadband noise floor by 4 dB compared to legacy Zeners, preserving µV-level biopotential resolution. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZT52-C3V6 | ±5 % tolerance, 160 Ω rdiff at 5 mA, non-AEC-Q101 | Limited to industrial/commercial use; unsuitable for automotive due to unqualified reliability testing | Select when cost sensitivity outweighs automotive qualification and tighter voltage stability needs |
| MMSZ4685-TP | 3.6 V nominal, ±5 %, 100 Ω rdiff, SOD-123 package, no AEC-Q101 | Higher leakage (5 µA at 3.6 V); lacks intentional fast-switching leakage optimization | Prefer for non-automotive consumer applications where AN90031 noise reduction is not required |
Compared with BZT5250H-B3V6-QX, BZT52-C3V6 offers lower cost but sacrifices 2× tighter tolerance and automotive qualification, while MMSZ4685-TP matches voltage but lacks AEC-Q101 validation and low-leakage noise optimization critical for precision analog systems.
Availability
BZT5250H-B3V6-QX is available at Aetrix Electronics and suitable for automotive electronics, portable medical devices, and industrial sensor interfaces requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for BZT5250H-B3V6-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 delivering high-performance, reliable discrete, logic, and MOSFET solutions with focus on efficiency, miniaturization, and automotive-grade quality.
The BZT5250H-Q series belongs to Nexperia's AEC-Q101-qualified Zener diode portfolio, engineered specifically for low-current, high-stability voltage regulation in harsh-environment automotive and portable electronics.
FAQ
What is the maximum reverse voltage rating before breakdown for BZT5250H-B3V6-QX?
The device has no defined "maximum reverse voltage" prior to breakdown - it is designed to operate in controlled reverse breakdown. Its specified Zener voltage is 3.53 V to 3.67 V at 5 mA, with a non-repetitive peak reverse power dissipation limit of 40 W for 100 µs pulses. Operation above 3.67 V must be current-limited to avoid exceeding Ptot = 830 mW.
Can BZT5250H-B3V6-QX replace a 3.3 V Zener in an existing design?
No - its nominal Zener voltage is 3.6 V (min 3.53 V, max 3.67 V), which exceeds the 3.3 V regulation target by >90 mV. Substituting it would raise reference or bias voltages, potentially causing comparator mis-triggering or ADC scaling errors. Use BZT5250H-B3V3-QX (3.23–3.37 V) instead for 3.3 V applications.
How does the "intentional minor rise of leakage current" improve performance?
Per application note AN90031, this controlled leakage increase reduces minority carrier lifetime, shortening turn-off time and lowering high-frequency noise generation during dynamic regulation - directly enhancing stability in feedback loops and reducing EMI in sensitive analog signal chains.
Is the SOD123F package compatible with standard reflow 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 area) and thermal mass aligned to IPC-7095 guidelines. Peak temperature must not exceed 260 °C, and time above 217 °C shall be 60–150 seconds, matching JEDEC J-STD-020D.3 Class 3 requirements.
BZT5250H-B3V6-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):
- 3.6 V
- Tolerance:
- ±2%
- Power - Max:
- 375 mW
- Impedance (Max) (Zzt):
- 95 Ohms
- Current - Reverse Leakage @ Vr:
- 7.5 µA @ 2 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-B3V6-QX FAQ
1.How can I place an order for BZT5250H-B3V6-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT5250H-B3V6-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-B3V6-QX reliable?
The price and inventory of BZT5250H-B3V6-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-B3V6-QX is usually 5 days.
3.What payment methods are accepted for BZT5250H-B3V6-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT5250H-B3V6-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT5250H-B3V6-QX?
BZT5250H-B3V6-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT5250H-B3V6-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-B3V6-QX?
For technical support, including BZT5250H-B3V6-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT5250H-B3V6-QX requirements.
6.How does Aetrix verify that BZT5250H-B3V6-QX is sourced from the original manufacturer or authorized distributors?
All BZT5250H-B3V6-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-B3V6-QX meets industry standards.
7.What is the process for return or replacement of BZT5250H-B3V6-QX?
All BZT5250H-B3V6-QX units undergo pre-shipment inspection (PSI). If there is an issue with BZT5250H-B3V6-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-B3V6-QX part is unused and in its original packaging.
Return procedure for BZT5250H-B3V6-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZT5250H-B3V6-QX Tags
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