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Nexperia USA Inc. BZT5250H-C2V0-QX
- Part No.:
- BZT5250H-C2V0-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT5250H-C2V0-QX.pdf
- Description:
- DIODE ZENER 2V 375MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:4,527
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Product details
Overview
BZT5250H-C2V0-Q from Nexperia is a low-current Zener diode in SOD123F package, designed for precision voltage regulation at 2.0 V nominal Zener voltage with ±5 % tolerance, specified at 50 µA test current, and rated for 830 mW total power dissipation - ideal for low-bias, battery-powered sensor nodes and automotive body electronics.
For engineers reviewing the BZT5250H-C2V0-Q datasheet, BZT5250H-C2V0-Q pinout, BZT5250H-C2V0-Q application, or BZT5250H-C2V0-Q equivalent, this part supports AEC-Q101-compliant voltage reference design, low-leakage reverse bias operation, thermal-stable regulation in compact SMD layouts, and fast-switching noise reduction per AN90031.
Technical Context
This Zener diode operates as a two-terminal voltage reference device with cathode-anode polarity, leveraging silicon PN-junction breakdown to maintain stable reverse-bias voltage under low-current conditions (IZ = 50 µA). Its differential resistance of ≤600 Ω at IZ = 50 µA and temperature coefficient of −3.5 mV/K ensure predictable regulation across ambient temperatures from −55 °C to +150 °C.
The device features intentional minor leakage current optimization per AN90031, enabling reduced switching noise and faster transient response in feedback paths. It is qualified to AEC-Q101 and mounted on FR4 PCB with 1 cm² cathode pad, delivering Rth(j-sp) = 70 K/W for reliable thermal performance in automotive-grade modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 2.0 V nominal, ±5 % tolerance at IZ = 50 µA - defines precise low-voltage reference point for microcontroller reset circuits or ADC biasing. |
| Forward Voltage (VF) | ≤0.9 V at IF = 10 mA - ensures minimal conduction loss when used in series protection or clamping configurations. |
| Total Power Dissipation (Ptot) | 830 mW at Tamb ≤ 25 °C with 1 cm² cathode pad - enables sustained operation in thermally constrained automotive ECUs without forced cooling. |
| Differential Resistance (rdiff) | ≤600 Ω at IZ = 50 µA - maintains tight regulation stability under light-load variations typical in IoT sensor sleep modes. |
| Reverse Current (IR) | ≤1.0 µA at VR = 1.0 V - guarantees ultra-low standby power draw in always-on vehicle modules. |
| Junction Temperature (Tj) | −55 °C to +150 °C - supports operation in under-hood environments and industrial control cabinets. |
| AEC-Q101 Qualified | Yes - validated for automotive discrete semiconductor stress testing including HTGB, HTRB, and temperature cycling. |
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 - must be routed to higher-potential side in reverse-bias configuration. |
| 2 (A) | Anode | Connected to ground or lower-potential reference; forms the current return path during Zener conduction. |
Key Features
| Feature | Design Value |
|---|---|
| Low-test-current specification | Rated at IZ = 50 µA - enables accurate voltage reference in nanoamp-level power domains like real-time clock backup circuits. |
| Optimized leakage profile | Intentional minor rise per AN90031 - reduces high-frequency noise and improves transient response in feedback loops of DC-DC converters. |
| AEC-Q101 qualification | Qualified for automotive applications - eliminates need for additional reliability screening in body control modules and lighting drivers. |
| Thermal resistance (Rth(j-sp)) | 70 K/W to solder point - allows direct thermal coupling to PCB copper, simplifying thermal design in space-constrained modules. |
| Small outline package | SOD123F footprint - compatible with standard 0806 reflow profiles and automated placement, reducing assembly cost vs. larger DO-35 or SOD-123 variants. |
Applications
| Automotive Body Control Unit (BCU) | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Voltage reference for LIN bus transceiver biasing and microcontroller brown-out detection in door module ECUs. IC Role / Device Role / Timing Role: Two-terminal Zener regulator providing stable 2.0 V reference for analog comparators and POR circuits. Use Value: AEC-Q101 qualification and −55 °C to +150 °C operation ensure functional safety compliance without derating in under-dash environments. |
Use Scenario: Precision biasing of bridge amplifier inputs in 4–20 mA loop-powered pressure transmitters. IC Role / Device Role / Timing Role: Low-current shunt reference maintaining excitation voltage stability despite supply ripple and temperature drift. Use Value: 600 Ω differential resistance and −3.5 mV/K tempco enable <±10 mV total error over −40 °C to +85 °C operating range. |
| Portable Medical Wearable Battery Monitor | Smart Home Smoke Detector MCU Reset Circuit |
Use Scenario: Low-power voltage reference for coulomb counter ICs monitoring coin-cell battery health in ECG patches. IC Role / Device Role / Timing Role: Shunt regulator operating at 50 µA test current to minimize quiescent drain while holding 2.0 V reference accuracy. Use Value: 1.0 µA max reverse current at 1.0 V ensures <10 nA standby leakage - extending 5-year battery life in maintenance-free devices. |
Use Scenario: Brown-out reset generator for ARM Cortex-M0+ MCU in battery-backed smoke alarms with dual alkaline cells. IC Role / Device Role / Timing Role: Zener-based threshold detector triggering reset when supply drops below 2.0 V ±5 %. Use Value: ±5 % tolerance and 0.9 V forward voltage allow clean turn-on/turn-off hysteresis design without external resistors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZT52-C2V0,115 (Nexperia) | Same 2.0 V Zener voltage and SOD123 package but ±5 % tolerance only; not AEC-Q101 qualified; Ptot = 500 mW. | Limited to commercial-grade consumer electronics; unsuitable for automotive or industrial temperature ranges. | Select when cost sensitivity outweighs automotive qualification and higher power margin is unnecessary. |
| MMSZ4678T1G (onsemi) | 2.0 V Zener, ±5 %, SOD-123 package, Ptot = 500 mW, IZ = 20 µA test current, no AEC-Q101 claim. | Lower test current increases sensitivity to leakage variation; lacks documented noise-reduction optimization per AN90031. | Prefer for legacy designs already using onsemi MMSZ series; verify thermal margin due to lower 500 mW rating. |
Compared with BZT5250H-C2V0-Q, the BZT52-C2V0,115 offers identical electrical specs but lacks automotive qualification and thermal headroom, while MMSZ4678T1G trades lower test current for reduced power handling and unverified noise performance - making the BZT5250H-C2V0-Q optimal for AEC-Q101 systems requiring robust low-current regulation.
Availability
BZT5250H-C2V0-Q is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor signal conditioning, portable medical wearables, and smart home safety devices requiring stable component supply across extended temperature and lifecycle demands.
Supply support for BZT5250H-C2V0-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 essential efficiency technologies, delivering high-performance, reliable discrete and logic devices 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, noise-sensitive voltage regulation in automotive and harsh-environment embedded systems.
FAQ
What is the maximum reverse voltage (VR) that BZT5250H-C2V0-Q can withstand before breakdown?
The device has no defined "maximum reverse voltage" prior to breakdown - it is a Zener diode designed to operate in controlled reverse breakdown. Its nominal Zener voltage is 2.0 V with ±5 % tolerance at IZ = 50 µA. The absolute maximum limiting value for non-repetitive peak reverse power is 40 W for 100 µs pulses, but continuous operation must remain within the 830 mW total power dissipation limit at rated ambient temperature.
Does BZT5250H-C2V0-Q support bidirectional ESD protection?
No - BZT5250H-C2V0-Q is a unidirectional Zener diode optimized for reverse-bias voltage regulation, not transient suppression. Its forward voltage is 0.9 V at 10 mA, and it lacks symmetric clamping characteristics or specified ESD ratings (e.g., IEC 61000-4-2). For bidirectional ESD protection, dedicated TVS diodes such as PESD5V0S1BA should be used instead.
How does the "intentional minor rise of leakage current" improve performance?
Per application note AN90031, this controlled leakage enhancement reduces junction capacitance modulation during switching transitions, lowering high-frequency noise generation and improving transient response time in feedback networks - particularly beneficial in DC-DC converter reference paths and precision analog sensing where signal integrity is critical.
Can BZT5250H-C2V0-Q be used in parallel for higher power handling?
No - Zener diodes exhibit negative temperature coefficients and manufacturing tolerances that cause current imbalance when paralleled. Even with matched units, one device will dominate conduction and risk thermal runaway. For higher power needs, select a single higher-rated Zener (e.g., BZT5250H-C3V0-Q with same package but higher VZ and rdiff), or use an active regulator circuit.
BZT5250H-C2V0-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):
- 2 V
- Tolerance:
- ±5%
- Power - Max:
- 375 mW
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 7 µA @ 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-C2V0-QX FAQ
1.How can I place an order for BZT5250H-C2V0-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT5250H-C2V0-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-C2V0-QX reliable?
The price and inventory of BZT5250H-C2V0-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-C2V0-QX is usually 5 days.
3.What payment methods are accepted for BZT5250H-C2V0-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT5250H-C2V0-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT5250H-C2V0-QX?
BZT5250H-C2V0-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT5250H-C2V0-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-C2V0-QX?
For technical support, including BZT5250H-C2V0-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT5250H-C2V0-QX requirements.
6.How does Aetrix verify that BZT5250H-C2V0-QX is sourced from the original manufacturer or authorized distributors?
All BZT5250H-C2V0-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-C2V0-QX meets industry standards.
7.What is the process for return or replacement of BZT5250H-C2V0-QX?
All BZT5250H-C2V0-QX units undergo pre-shipment inspection (PSI). If there is an issue with BZT5250H-C2V0-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-C2V0-QX part is unused and in its original packaging.
Return procedure for BZT5250H-C2V0-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZT5250H-C2V0-QX Tags
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