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Nexperia USA Inc. BZT5250H-C2V4-QX
- Part No.:
- BZT5250H-C2V4-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT5250H-C2V4-QX.pdf
- Description:
- DIODE ZENER 2.4V 375MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:4,416
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Product details
Overview
BZT5250H-C2V4-QX from Nexperia is a low-current Zener diode in SOD123F package, designed for precision voltage regulation at 2.4 V nominal with ±2 % tolerance, specified at 50 µA test current and rated for 830 mW total power dissipation. It delivers stable reference voltage in battery-powered sensor nodes, automotive body control modules, and low-power microcontroller reset circuits.
For engineers reviewing the BZT5250H-C2V4-QX datasheet, BZT5250H-C2V4-QX pinout, BZT5250H-C2V4-QX application, or BZT5250H-C2V4-QX equivalent, key selection criteria include its 2.4 V Zener voltage with ±2 % tolerance, low 50 µA test current, AEC-Q101 qualification, and SOD123F thermal performance (Rth(j-sp) = 150 K/W).
Technical Context
This Zener diode operates as a two-terminal shunt voltage regulator, maintaining a stable 2.4 V reverse breakdown across load variations using a low 50 µA test current-ideal for ultra-low-power biasing. Its differential resistance of ≤600 Ω at IZ = 50 µA ensures minimal voltage drift under light-load conditions.
The device features an intentional minor rise in leakage current per AN90031 to optimize fast switching transients and reduce noise in sensitive analog rails. Qualified to AEC-Q101, it supports operation from −55 °C to +150 °C ambient, with junction temperature limited to 150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 2.28 V to 2.52 V at IZ = 50 µA - tight ±2 % tolerance enables accurate low-current reference without trimming. |
| Power Dissipation (Ptot) | 830 mW at Tamb ≤ 25 °C - sufficient headroom for transient surges in automotive ECUs with FR4 PCB mounting. |
| Differential Resistance (rdiff) | ≤600 Ω at IZ = 50 µA - low dynamic impedance maintains regulation stability under varying load currents. |
| Forward Voltage (VF) | ≤0.9 V at IF = 10 mA - enables use as low-drop rectifier or clamp in dual-role protection circuits. |
| Reverse Current (IR) | ≤2.0 µA at VR = 1.0 V - ultra-low leakage preserves battery life in always-on monitoring systems. |
| Temperature Coefficient (SZ) | −3.5 mV/K - predictable negative drift allows compensation in temperature-critical voltage references. |
| Diode Capacitance (Cd) | 200 pF at f = 1 MHz, VR = 0 V - suitable for low-frequency regulation; avoids RF coupling in signal-path bias networks. |
Pinout & Package
SOD123F surface-mount plastic package: 2.6 mm × 1.6 mm × 1.1 mm body, single-sided copper FR4 PCB mount, cathode pad area 1 cm² for thermal management.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K) | Cathode | Connected to regulated output node; marking bar identifies this terminal - polarity critical for correct shunt regulation. |
| 2 (A) | Anode | Connected to ground or lower-potential rail; forms current path during reverse-bias conduction. |
Key Features
| Feature | Design Value |
|---|---|
| Low-test-current regulation | Specified at 50 µA - enables direct connection to high-impedance MCU GPIOs or battery monitors without loading. |
| AEC-Q101 qualification | Qualified for automotive applications - validated for temperature cycling, humidity, and mechanical shock per discrete semiconductor standard. |
| Optimized leakage profile | Intentional minor IR rise per AN90031 - reduces switching noise and improves transient response in digital supply rails. |
| Thermal resistance (j-sp) | 150 K/W - enables reliable 830 mW operation on standard FR4 with 1 cm² cathode pad, avoiding heatsinks. |
| Small-form-factor SMD | SOD123F footprint - compatible with automated placement and reflow, saving board space vs. DO-35 or SOD-123. |
Applications
| Automotive Body Control Module | Portable Gas Sensor Bias |
|---|---|
|
Use Scenario: Stable 2.4 V reference for analog front-end of CO sensor in vehicle cabin air quality system. IC Role / Device Role / Timing Role: Shunt Zener regulator providing excitation voltage to electrochemical sensor element. Use Value: ±2 % tolerance and −3.5 mV/K TC allow calibrated gas concentration output over −40 °C to +85 °C without software compensation. |
Use Scenario: Low-power voltage reference for ADC input scaling in handheld VOC detector powered by coin cell. IC Role / Device Role / Timing Role: Precision Zener supplying regulated bias to op-amp gain stage feeding 12-bit SAR ADC. Use Value: 50 µA test current draws <1 µA quiescent current in sleep mode, extending 10-year battery life target. |
| Industrial PLC Input Protection | Microcontroller Reset Circuit |
|
Use Scenario: Overvoltage clamp on 24 V DC field input channel of DIN-rail mounted programmable logic controller. IC Role / Device Role / Timing Role: Transient-suppressing Zener placed before TVS diode to absorb low-energy surges below TVS threshold. Use Value: 830 mW Ptot and 40 W non-repetitive peak power handle IEC 61000-4-5 surge events without degradation. |
Use Scenario: Brown-out detection reference for ARM Cortex-M0+ MCU in smart lighting node with Li-ion backup. IC Role / Device Role / Timing Role: Zener-based comparator threshold set to 2.4 V to trigger reset when main supply drops below 2.7 V. Use Value: Tight 2.28–2.52 V range ensures deterministic reset assertion across voltage and temperature, eliminating false triggers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX384-C2V4 | Same 2.4 V ±2 %, but SOD323 package (1.3 × 0.8 mm); 300 mW Ptot; rdiff = 100 Ω @ 5 mA | Lower power rating limits use in surge-prone industrial inputs; smaller size suits ultra-dense wearables. | Select when board space is constrained and peak power <300 mW; avoid for automotive under-hood locations. |
| MMSZ4676T1G | 2.4 V ±5 %, SOD123 package; 500 mW Ptot; rdiff = 100 Ω @ 20 mA; no AEC-Q101 qualification | Looser tolerance increases calibration overhead; lacks automotive qualification and optimized leakage profile. | Select for cost-sensitive consumer electronics where AEC-Q101 and tight TC are not required. |
Compared with BZX384-C2V4 and MMSZ4676T1G, BZT5250H-C2V4-QX offers superior automotive readiness, higher 830 mW power handling, and a purpose-tuned leakage profile for noise-sensitive regulation-making it optimal for automotive and industrial edge nodes requiring long-term stability.
Availability
BZT5250H-C2V4-QX is available at Aetrix Electronics and suitable for automotive body control modules, portable gas sensor biasing, industrial PLC input protection, and microcontroller reset circuits requiring stable component supply across extended temperature ranges and AEC-Q101 compliance.
Supply support for BZT5250H-C2V4-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 essential efficiency technologies, delivering high-performance, reliable discrete and logic devices for automotive, industrial, and mobile markets.
BZT5250H-Q series belongs to Nexperia's AEC-Q101-qualified Zener portfolio, engineered specifically for low-current, high-stability voltage regulation in harsh-environment automotive and industrial control systems.
FAQ
What is the maximum reverse voltage (VR) that BZT5250H-C2V4-QX can withstand before breakdown?
The device exhibits a sharp reverse breakdown at its nominal Zener voltage of 2.4 V, with guaranteed regulation between 2.28 V and 2.52 V at 50 µA. It does not specify a distinct "maximum reverse voltage" prior to breakdown-operation above 2.52 V in reverse bias initiates controlled Zener conduction, not catastrophic failure. Absolute maximum reverse voltage is not defined; sustained reverse bias above VZ must remain within Ptot and IF limits.
Can BZT5250H-C2V4-QX be used in place of a standard 1N4733A (5.1 V) for low-voltage reference?
No-BZT5250H-C2V4-QX is a fixed 2.4 V Zener diode and cannot substitute for a 5.1 V device like the 1N4733A. Its electrical characteristics (VZ, rdiff, power rating) are optimized for 2.4 V operation; using it at higher voltages would result in unregulated behavior or thermal runaway. Select BZT5250H-C5V1-Q for 5.1 V equivalents in the same series.
Is the SOD123F package lead-free and RoHS compliant?
Yes-BZT5250H-C2V4-QX is manufactured using lead-free solderable terminations and complies with EU RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006. The SOD123F package uses matte tin-plated terminals and halogen-free molding compound, verified per Nexperia's material declarations.
How does the "intentional minor rise of leakage current" affect circuit design?
This feature, detailed in application note AN90031, slightly increases reverse leakage near VZ to improve transient response and suppress high-frequency noise-particularly beneficial in digital supply rails and clock buffer bias networks. Designers should verify that the resulting ~2 µA leakage at 1.0 V reverse bias does not exceed allowable current budgets in ultra-low-power sleep modes.
BZT5250H-C2V4-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):
- 2.4 V
- Tolerance:
- ±5%
- Power - Max:
- 375 mW
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 2 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-C2V4-QX FAQ
1.How can I place an order for BZT5250H-C2V4-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT5250H-C2V4-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-C2V4-QX reliable?
The price and inventory of BZT5250H-C2V4-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-C2V4-QX is usually 5 days.
3.What payment methods are accepted for BZT5250H-C2V4-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT5250H-C2V4-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT5250H-C2V4-QX?
BZT5250H-C2V4-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT5250H-C2V4-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-C2V4-QX?
For technical support, including BZT5250H-C2V4-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT5250H-C2V4-QX requirements.
6.How does Aetrix verify that BZT5250H-C2V4-QX is sourced from the original manufacturer or authorized distributors?
All BZT5250H-C2V4-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-C2V4-QX meets industry standards.
7.What is the process for return or replacement of BZT5250H-C2V4-QX?
All BZT5250H-C2V4-QX units undergo pre-shipment inspection (PSI). If there is an issue with BZT5250H-C2V4-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-C2V4-QX part is unused and in its original packaging.
Return procedure for BZT5250H-C2V4-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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