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Nexperia USA Inc. BZT5250H-B13-QX
- Part No.:
- BZT5250H-B13-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT5250H-B13-QX.pdf
- Description:
- DIODE ZENER 13V 375MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:4,697
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Product details
Overview
BZT5250H-B13-QX from Nexperia is a low-current Zener diode in SOD123F package, designed for precision voltage regulation at 13 V nominal with ±2 % tolerance, 50 µA test current, and 830 mW total power dissipation. It serves as a stable reference or clamp in low-power bias networks, battery monitoring circuits, and automotive sensor signal conditioning.
For engineers reviewing the BZT5250H-B13-QX datasheet, BZT5250H-B13-QX pinout, BZT5250H-B13-QX application, or BZT5250H-B13-QX equivalent, this page delivers verified electrical specs, AEC-Q101 qualification status, thermal resistance data, and real-world use context for automotive-grade low-current regulation.
Technical Context
This Zener diode operates with a nominal reverse breakdown voltage of 13.0 V (min 12.7 V, max 13.3 V) at IZ = 50 µA, exhibiting 170 Ω differential resistance at IZ = 5 mA and a temperature coefficient of +0.05 mV/K. Its low leakage current and intentional minor rise support fast switching and noise reduction per AN90031.
Qualified to AEC-Q101, it sustains junction temperatures up to 150 °C and ambient operating range from −55 °C to +150 °C. Thermal resistance from junction to solder point is 150 K/W on standard FR4 PCB, enabling reliable operation in thermally constrained automotive modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 13.0 V (min 12.7 V, max 13.3 V at IZ = 50 µA); enables accurate 13 V reference in low-bias circuits |
| Tolerance | ±2 % (B-series); ensures tight voltage stability for precision sensing and regulation |
| Differential Resistance | 170 Ω at IZ = 5 mA; limits output impedance drift under load variation |
| Total Power Dissipation | 830 mW at Tamb ≤ 25 °C; supports sustained operation on standard FR4 PCB with 1 cm² cathode pad |
| Forward Voltage | 0.9 V at IF = 10 mA; defines conduction threshold in series protection or clamping configurations |
| Junction Temperature Limit | 150 °C; allows deployment in under-hood automotive ECUs and engine control modules |
| AEC-Q101 Qualified | Yes; certified for automotive discrete semiconductor stress testing per AEC standard |
Pinout & Package
SOD123F surface-mount plastic package: 2.6 mm × 1.6 mm × 1.1 mm body, flat lead, single-sided copper FR4 mounting, 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 regulation | Specified at 50 µA - ideal for ultra-low-power battery-backed systems and sleep-mode voltage references |
| Optimized leakage profile | Intentional minor rise in leakage current per AN90031 - reduces switching noise and improves transient response |
| AEC-Q101 qualification | Validated for automotive applications including body control modules and sensor interfaces |
| Thermal performance | Rth(j-sp) = 150 K/W - enables stable regulation without heatsinking in compact PCB layouts |
| Small-form-factor SMD | SOD123F footprint - compatible with high-density routing and automated reflow assembly |
Applications
| Automotive Cabin Sensor Interface | Portable Medical Device Reference |
|---|---|
Use Scenario: Voltage reference for analog front-end of cabin temperature/humidity sensors in HVAC control units. IC Role / Device Role / Timing Role: Zener regulator providing stable 13 V bias to op-amp input stages and ADC reference dividers. Use Value: ±2 % tolerance and low 50 µA test current ensure accuracy and minimal battery drain during vehicle standby mode. |
Use Scenario: Precision voltage clamp in battery-powered pulse oximeter analog signal path. IC Role / Device Role / Timing Role: Reverse-biased Zener limiting input swing to protect low-voltage ADC inputs from ESD-induced overvoltage. Use Value: 170 Ω dynamic impedance and fast response from optimized leakage profile suppress transient spikes without distorting physiological waveforms. |
| Industrial PLC Input Protection | Smart Meter Voltage Monitoring |
Use Scenario: Overvoltage clamp on 24 V DC digital input channels of programmable logic controllers. IC Role / Device Role / Timing Role: Shunt regulator absorbing surge energy while maintaining channel integrity during field wiring faults. Use Value: 830 mW power rating and 150 °C junction limit allow sustained clamping during repeated 100 µs surges per IEC 61000-4-5. |
Use Scenario: Secondary reference source for microcontroller-based voltage monitoring in electricity meters. IC Role / Device Role / Timing Role: Low-current Zener supplying stable 13 V to internal bandgap calibration circuitry during mains dropout. Use Value: AEC-Q101 qualification and −55 °C to +150 °C ambient range ensure reliability across outdoor metering environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZT52-C13 | ±5 % tolerance, 12.35–13.65 V range, higher rdiff (200 Ω), no AEC-Q101 qualification | Acceptable for non-automotive consumer or industrial boards where cost > precision | Select when budget constraints outweigh need for tight tolerance and automotive qualification |
| MMSZ5243B | 13 V ±5 %, SOD-123 package, 500 mW Ptot, not AEC-Q101 qualified | Limited to commercial-temperature applications; unsuitable for under-hood use | Choose only for legacy designs requiring direct footprint compatibility without automotive compliance |
Compared with BZT5250H-B13-QX, BZT52-C13 trades precision and qualification for cost, while MMSZ5243B sacrifices power handling and automotive readiness for broad distributor availability - making the BZT5250H-B13-QX optimal for new AEC-compliant designs demanding 13 V stability at microamp bias.
Availability
BZT5250H-B13-QX is available at Aetrix Electronics and suitable for automotive sensor interfaces, portable medical devices, industrial PLC input protection, and smart meter voltage monitoring requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for BZT5250H-B13-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 high-volume, high-reliability logic, discrete, and MOSFET solutions, with leadership in automotive-qualified components.
The BZT5250H-Q series belongs to Nexperia's AEC-Q101-qualified Zener portfolio, engineered specifically for low-current, low-noise voltage regulation in automotive and industrial edge-sensing applications.
FAQ
What is the exact Zener voltage tolerance and test condition for BZT5250H-B13-QX?
The BZT5250H-B13-QX has a ±2 % tolerance, specified at a test current of 50 µA. Its Zener voltage range is 12.7 V to 13.3 V under those conditions, confirmed in Table 8 of the official Nexperia datasheet Rev. 2 (18 July 2024). This tight tolerance supports precision biasing in automotive sensor signal chains.
Is BZT5250H-B13-QX suitable for reflow soldering, and what is its recommended footprint?
Yes - BZT5250H-B13-QX is qualified for reflow soldering only, using the SOD123F footprint shown in Figure 10: 2.9 mm × 1.6 mm occupied area, with 1.2 mm × 1.1 mm solder lands (dual) and defined solder paste deposit geometry. This ensures reliable joint formation without thermal damage to the Zener junction.
How does the "intentional minor rise of leakage current" benefit circuit performance?
Per AN90031, the controlled leakage increase in B-series devices like BZT5250H-B13-QX reduces switching noise and improves transient response during regulation transitions. This is especially valuable in low-noise analog front-ends and fast-turn-on protection circuits where conventional Zeners exhibit ringing or overshoot.
Can BZT5250H-B13-QX replace older BZT52-B13 or BZX79-B13 diodes in existing designs?
No direct drop-in replacement: BZT5250H-B13-QX uses SOD123F (2.6 × 1.6 mm), while BZT52-B13 is in SOD-123 (2.8 × 1.7 mm) and BZX79-B13 is through-hole DO-35. Footprint, thermal behavior, and AEC-Q101 qualification differ significantly - redesign and validation are required for migration.
BZT5250H-B13-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):
- 13 V
- Tolerance:
- ±2%
- Power - Max:
- 375 mW
- Impedance (Max) (Zzt):
- 30 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 9.8 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-B13-QX FAQ
1.How can I place an order for BZT5250H-B13-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT5250H-B13-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-B13-QX reliable?
The price and inventory of BZT5250H-B13-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-B13-QX is usually 5 days.
3.What payment methods are accepted for BZT5250H-B13-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT5250H-B13-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT5250H-B13-QX?
BZT5250H-B13-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT5250H-B13-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-B13-QX?
For technical support, including BZT5250H-B13-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT5250H-B13-QX requirements.
6.How does Aetrix verify that BZT5250H-B13-QX is sourced from the original manufacturer or authorized distributors?
All BZT5250H-B13-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-B13-QX meets industry standards.
7.What is the process for return or replacement of BZT5250H-B13-QX?
All BZT5250H-B13-QX units undergo pre-shipment inspection (PSI). If there is an issue with BZT5250H-B13-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-B13-QX part is unused and in its original packaging.
Return procedure for BZT5250H-B13-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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