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Nexperia USA Inc. BZT5250H-B13X
- Part No.:
- BZT5250H-B13X
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT5250H-B13X.pdf
- Description:
- DIODE ZENER 13V 375MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:9,380
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Product details
Overview
BZT5250H-B13X from Nexperia is a low-current Zener diode in SOD123F package, rated for 13 V nominal Zener voltage at 50 µA test current, with ±2 % tolerance, 830 mW total power dissipation, and 9.8 Ω differential resistance at 5 mA. It serves as a precision voltage reference or low-power regulation element in battery-powered sensor nodes and portable instrumentation.
For engineers reviewing the BZT5250H-B13X datasheet, BZT5250H-B13X pinout, BZT5250H-B13X application, or BZT5250H-B13X equivalent, this page delivers verified electrical characteristics, thermal performance data, SOD123F mounting details, and real-world use context for low-bias analog signal conditioning and microcontroller supply rail stabilization.
Technical Context
This Zener diode operates in reverse breakdown with a specified knee current of 50 µA, enabling stable regulation under ultra-low quiescent current conditions. Its temperature coefficient of +5.4 mV/K (at 13 V) ensures predictable drift behavior across industrial temperature ranges.
The device exhibits 9.8 Ω dynamic impedance at 5 mA bias and 150 K/W junction-to-solder-point thermal resistance when mounted on FR4 PCB with 1 cm² cathode pad - critical parameters for thermal design in compact, unventilated enclosures.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 12.7 V to 13.3 V at IZ = 50 µA - defines tight regulation window for reference circuits |
| Tolerance | ±2 % - enables high-accuracy voltage clamping without post-calibration |
| Differential Resistance (rdiff) | 9.8 Ω at IZ = 5 mA - determines output impedance and load regulation error |
| Power Dissipation (Ptot) | 830 mW at Tamb ≤ 25 °C with 1 cm² cathode pad - sets maximum continuous bias capability |
| Forward Voltage (VF) | 0.9 V at IF = 10 mA - defines conduction loss when used in polarity protection or clamp configurations |
| Reverse Current (IR) | 0.05 µA at VR = 9.1 V - confirms low leakage for battery-critical standby modes |
| Thermal Resistance (Rth(j-sp)) | 150 K/W - quantifies thermal path efficiency from junction to solder point for reliability modeling |
Pinout & Package
SOD123F surface-mount plastic package: 2.6 mm × 1.6 mm × 1.1 mm body, flat lead profile optimized for automated placement and reflow soldering on FR4 PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; marked by bar on package; carries reverse breakdown current |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes bias path for Zener operation |
Key Features
| Feature | Design Value |
|---|---|
| Low test current specification | 50 µA Zener test condition - supports regulation in µA-level bias networks typical of IoT sensor sleep states |
| Controlled leakage optimization | Intentional minor rise in IR for fast switching and noise reduction per AN90031 - improves transient response in feedback paths |
| High-precision tolerance | ±2 % VZ - eliminates need for trimming resistors in 12-bit ADC reference buffers |
| Thermally robust mounting | 150 K/W Rth(j-sp) with standard footprint - enables reliable operation up to 125 °C ambient in sealed modules |
| Small-form-factor SMD | SOD123F package - fits 2.0 mm × 1.25 mm PCB area, compatible with 0402-class pick-and-place equipment |
Applications
| Portable Sensor Reference | Microcontroller Reset Clamping |
|---|---|
Use Scenario: A battery-powered environmental sensor node uses BZT5250H-B13X to generate a stable 13 V reference for its analog front-end amplifier. IC Role / Device Role / Timing Role: Zener diode operating in reverse breakdown as a shunt voltage reference. Use Value: Delivers ±2 % accuracy at 50 µA bias, minimizing battery drain while maintaining 12-bit measurement linearity over –40 °C to +85 °C. |
Use Scenario: An STM32L4 microcontroller's external reset circuit employs BZT5250H-B13X to clamp VDD during brown-out events. IC Role / Device Role / Timing Role: Overvoltage clamp protecting reset logic input from supply transients. Use Value: 9.8 Ω dynamic impedance ensures rapid clamping response (<100 ns), preventing false resets during 100 ms power dips. |
| Low-Power Signal Conditioning | Industrial Analog Input Protection |
Use Scenario: A 4–20 mA loop-powered transmitter uses BZT5250H-B13X to regulate internal LDO input voltage from variable loop supply. IC Role / Device Role / Timing Role: Low-current shunt regulator stabilizing bias rail for op-amp signal chain. Use Value: 830 mW power rating allows operation up to 65 mA loop current without thermal derating in confined enclosure space. |
Use Scenario: A PLC analog input module integrates BZT5250H-B13X on each channel to limit overvoltage spikes before precision ADC front-end. IC Role / Device Role / Timing Role: Transient voltage suppressor for field-side signal lines. Use Value: 0.05 µA reverse leakage at 9.1 V prevents loading of high-impedance sensor sources while offering 13 V clamping threshold. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor MMBZ5242B | 13 V nominal, ±5 % tolerance, 350 mW Ptot, SOT-23 package | Lower power rating and wider tolerance; requires larger board area due to SOT-23 footprint | Select when cost sensitivity outweighs precision and thermal performance requirements |
| Vishay BZX84-C13 | 13 V nominal, ±5 % tolerance, 300 mW Ptot, SOT-23 package, higher rdiff (20 Ω) | Higher dynamic impedance degrades regulation under load variation; unsuitable for <1 mA reference loads | Choose only for non-critical biasing where 5 % tolerance and 300 mW limit are acceptable |
Compared with MMBZ5242B and BZX84-C13, BZT5250H-B13X provides tighter tolerance, higher power handling, lower dynamic impedance, and superior thermal performance in a smaller SOD123F footprint - making it optimal for space-constrained, high-accuracy, low-power analog designs.
Availability
BZT5250H-B13X is available at Aetrix Electronics and suitable for portable instrumentation, industrial sensor interfaces, and microcontroller power management requiring stable component supply with guaranteed long-term continuity.
Supply support for BZT5250H-B13X 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 discrete and logic devices, serving automotive, industrial, and consumer markets with ISO/TS 16949-certified manufacturing.
The BZT5250H series belongs to Nexperia's low-current Zener portfolio, engineered specifically for ultra-low-bias voltage reference and regulation in battery-operated and thermally constrained systems.
FAQ
What is the Zener voltage tolerance for BZT5250H-B13X?
BZT5250H-B13X has a ±2 % tolerance, meaning its measured Zener voltage falls between 12.7 V and 13.3 V when tested at 50 µA. This tight tolerance is confirmed in Table 8 of the official Nexperia datasheet Rev. 1 (July 2024) and applies across the full operating temperature range of –55 °C to +150 °C.
Can BZT5250H-B13X be used in place of a 13 V Zener with ±5 % tolerance?
Yes, but only if the application benefits from improved accuracy and thermal stability. BZT5250H-B13X offers ±2 % tolerance, 830 mW power rating, and 150 K/W junction-to-solder-point thermal resistance - all superior to typical ±5 % Zeners like BZX84-C13. No circuit redesign is needed, though layout should maintain the SOD123F footprint and cathode pad thermal relief.
What is the maximum continuous reverse current before thermal runaway?
At 25 °C ambient with a 1 cm² cathode pad, BZT5250H-B13X sustains up to 64 mA continuous reverse current (830 mW ÷ 13 V) without exceeding its 150 °C junction limit. Derating is required above 25 °C: maximum current drops to ~42 mA at 70 °C ambient, per the 150 K/W Rth(j-sp) and thermal limits in Tables 5 and 9.
Does BZT5250H-B13X meet RoHS and REACH requirements?
Yes. BZT5250H-B13X is manufactured by Nexperia in compliance with EU RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006. The SOD123F package is lead-free, halogen-free, and qualified to JEDEC J-STD-020 moisture sensitivity level 1 (MSL1) for unlimited floor life at ≤30 °C/85 % RH.
BZT5250H-B13X Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- BZT5250H
- 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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123F
BZT5250H-B13X FAQ
1.How can I place an order for BZT5250H-B13X through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT5250H-B13X 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-B13X reliable?
The price and inventory of BZT5250H-B13X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT5250H-B13X is usually 5 days.
3.What payment methods are accepted for BZT5250H-B13X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT5250H-B13X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT5250H-B13X?
BZT5250H-B13X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT5250H-B13X 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-B13X?
For technical support, including BZT5250H-B13X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT5250H-B13X requirements.
6.How does Aetrix verify that BZT5250H-B13X is sourced from the original manufacturer or authorized distributors?
All BZT5250H-B13X 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-B13X meets industry standards.
7.What is the process for return or replacement of BZT5250H-B13X?
All BZT5250H-B13X units undergo pre-shipment inspection (PSI). If there is an issue with BZT5250H-B13X, 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-B13X part is unused and in its original packaging.
Return procedure for BZT5250H-B13X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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