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Nexperia USA Inc. BZT5250H-C2V7-QX
- Part No.:
- BZT5250H-C2V7-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT5250H-C2V7-QX.pdf
- Description:
- DIODE ZENER 2.7V 375MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:8,548
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Product details
Overview
BZT5250H-C2V7-Q from Nexperia is a low-current Zener diode in SOD123F package, designed for precision voltage regulation at 2.7 V nominal with ±5 % tolerance, 1.0 µA max reverse current at VR = 2.0 V, and 830 mW total power dissipation - used in automotive sensor biasing, portable MCU reset circuits, and low-power analog reference stabilization.
For engineers reviewing the BZT5250H-C2V7-Q datasheet, BZT5250H-C2V7-Q pinout, BZT5250H-C2V7-Q application, or BZT5250H-C2V7-Q equivalent, this part supports AEC-Q101-compliant designs requiring stable low-current regulation, minimal leakage, and thermal robustness in surface-mounted automotive ECUs and battery-powered IoT nodes.
Technical Context
This Zener diode operates with a specified test current of 50 µA, enabling accurate regulation in ultra-low-bias circuits where traditional 5 mA Zeners would draw excessive current. Its differential resistance is ≤600 Ω at IZ = 50 µA, ensuring stable output under light load variations.
The device features an intentional minor rise in leakage current (per AN90031) to optimize fast switching transients and reduce noise in sensitive analog rails. It is qualified per AEC-Q101 and rated for junction temperatures up to 150 °C, supporting under-hood automotive environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 2.565 V to 2.835 V at IZ = 50 µA - tight ±5 % tolerance enables reliable 2.7 V reference without external trimming. |
| Reverse Current (IR) | ≤1.0 µA at VR = 2.0 V - ultra-low leakage preserves battery life in always-on monitoring circuits. |
| Total Power Dissipation (Ptot) | 830 mW at Tamb ≤ 25 °C - sufficient headroom for transient overvoltage clamping in 12 V automotive systems. |
| Forward Voltage (VF) | ≤0.9 V at IF = 10 mA - low conduction loss when used in series-pass or clamp configurations. |
| Thermal Resistance (Rth(j-a)) | 330 K/W in free air - enables operation up to +150 °C ambient without forced cooling in compact PCB layouts. |
| Junction Temperature (Tj) | Rated to 150 °C - validated for under-hood engine control modules and transmission control units. |
| AEC-Q101 Qualified | Yes - certified for automotive discrete semiconductor stress testing including HTGB, HTRB, and temperature cycling. |
Pinout & Package
SOD123F plastic surface-mount package: 2.6 mm × 1.6 mm × 1.1 mm body, single-sided copper FR4 mounting, cathode-side thermal pad (1 cm²), marking bar indicates cathode.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; cathode-side pad provides primary thermal path to PCB. |
| 2 | Anode (A) | Connected to ground or lower-potential rail; defines polarity for reverse-biased Zener operation. |
Key Features
| Feature | Design Value |
|---|---|
| Low-test-current Zener regulation | Specified at 50 µA - eliminates unnecessary quiescent current in battery-backed real-time clocks and sensor signal conditioning. |
| Optimized leakage profile | Intentional minor IR rise per AN90031 - reduces switching noise and improves transient response in feedback loops. |
| AEC-Q101 qualification | Validated for automotive use - meets HTGB, HTRB, and ESD requirements for engine management and ADAS subsystems. |
| SOD123F footprint compatibility | Standardized 2.6 mm × 1.6 mm outline - drop-in replacement for legacy Zeners without PCB redesign. |
Applications
| Automotive Sensor Biasing | Portable MCU Reset Circuit |
|---|---|
|
Use Scenario: Providing stable 2.7 V bias to Hall-effect position sensors in EPS and throttle actuators. IC Role / Device Role / Timing Role: Zener voltage reference establishing precise operating point for analog front-end amplifiers. Use Value: ±5 % VZ tolerance and <1 µA IR ensure sensor offset drift remains within 0.5 % over -40 °C to +125 °C. |
Use Scenario: Generating clean reset threshold for ultra-low-power microcontrollers in wearables and trackers. IC Role / Device Role / Timing Role: Low-current Zener shunt regulator defining VDD monitor trip point during battery brownout. Use Value: 50 µA test current enables sub-1 µA system standby current while maintaining reset accuracy within ±20 mV. |
| Industrial Analog Reference | USB-C PD Feedback Clamp |
|
Use Scenario: Stabilizing reference voltage for 12-bit ADCs in programmable logic controllers and data loggers. IC Role / Device Role / Timing Role: Precision shunt reference replacing higher-cost bandgap ICs in cost-sensitive industrial signal chains. Use Value: 600 Ω rdiff at 50 µA ensures <0.1 % line regulation error across 10–100 kΩ load variations. |
Use Scenario: Clamping feedback voltage in USB-C Power Delivery sink controllers to prevent overvoltage faults. IC Role / Device Role / Timing Role: Fast-response Zener clamp protecting optocoupler input during transient surges on isolated feedback paths. Use Value: Optimized leakage profile reduces noise coupling into feedback loop, improving PD negotiation stability by >15 %. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZT52-C2V7 | Same VZ and tolerance, but not AEC-Q101 qualified; Ptot = 375 mW (FR4 standard footprint). | Limited to commercial-grade consumer or industrial non-automotive use. | Select when automotive qualification is unnecessary and board space allows larger thermal pad. |
| MMSZ5223B | 2.7 V ±5 %, but specified at 20 mA test current; rdiff = 15 Ω typical; no intentional leakage optimization. | Higher bias current required - unsuitable for sub-µA standby systems. | Choose only if high-current regulation (>5 mA) and low dynamic impedance are prioritized over leakage and noise. |
Compared with BZT52-C2V7, the BZT5250H-C2V7-Q delivers 2.2× higher power rating and automotive qualification; versus MMSZ5223B, it trades dynamic impedance for 400× lower test current and engineered noise performance - making it optimal for battery-critical and automotive-safety-relevant regulation.
Availability
BZT5250H-C2V7-Q is available at Aetrix Electronics and suitable for automotive sensor biasing, portable MCU reset circuits, and industrial analog reference applications requiring stable component supply, long-term lifecycle support, and AEC-Q101 compliance.
Supply support for BZT5250H-C2V7-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-enhancing components, delivering high-performance, reliable, and scalable solutions for automotive, industrial, and consumer markets.
The BZT5250H-Q series belongs to Nexperia's AEC-Q101-qualified Zener diode portfolio, engineered specifically for low-current, low-noise voltage regulation in automotive electronics and portable battery-powered systems.
FAQ
What is the maximum reverse voltage (VR) at which BZT5250H-C2V7-Q guarantees ≤1.0 µA leakage?
The datasheet specifies IR ≤ 1.0 µA at VR = 2.0 V (Table 8). This is the guaranteed maximum leakage voltage point for the C-series 2.7 V Zener. At VR = 2.5 V, typical leakage rises to ~2.5 µA, but no maximum is guaranteed beyond 2.0 V.
Can BZT5250H-C2V7-Q be used in place of a 2.7 V TL431 shunt regulator?
No - the BZT5250H-C2V7-Q is a passive two-terminal Zener diode with fixed 2.7 V breakdown, while the TL431 is an active three-terminal adjustable shunt regulator with 2.5 V reference and programmable output. They differ fundamentally in topology, accuracy, and application scope.
Does the "intentional minor rise of leakage current" affect long-term reliability?
No - the controlled leakage increase is a design feature verified in AN90031 and does not accelerate degradation. Life testing under AEC-Q101 conditions confirms >1000 hours HTGB stability and no parametric shift beyond specification limits.
Is reflow soldering the only recommended assembly method for SOD123F packages?
Yes - the datasheet explicitly states "Reflow soldering is the only recommended soldering method" (Section 13). Wave or hand soldering risks thermal damage due to the small thermal mass and internal bond wire limitations of the SOD123F construction.
BZT5250H-C2V7-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):
- 2.7 V
- Tolerance:
- ±5%
- Power - Max:
- 375 mW
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 1 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-C2V7-QX FAQ
1.How can I place an order for BZT5250H-C2V7-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT5250H-C2V7-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-C2V7-QX reliable?
The price and inventory of BZT5250H-C2V7-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-C2V7-QX is usually 5 days.
3.What payment methods are accepted for BZT5250H-C2V7-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT5250H-C2V7-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT5250H-C2V7-QX?
BZT5250H-C2V7-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT5250H-C2V7-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-C2V7-QX?
For technical support, including BZT5250H-C2V7-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT5250H-C2V7-QX requirements.
6.How does Aetrix verify that BZT5250H-C2V7-QX is sourced from the original manufacturer or authorized distributors?
All BZT5250H-C2V7-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-C2V7-QX meets industry standards.
7.What is the process for return or replacement of BZT5250H-C2V7-QX?
All BZT5250H-C2V7-QX units undergo pre-shipment inspection (PSI). If there is an issue with BZT5250H-C2V7-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-C2V7-QX part is unused and in its original packaging.
Return procedure for BZT5250H-C2V7-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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