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Nexperia USA Inc. BZT5250H-C22-QX
- Part No.:
- BZT5250H-C22-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT5250H-C22-QX.pdf
- Description:
- DIODE ZENER 22V 375MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:7,383
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Product details
Overview
BZT5250H-C22-QX from Nexperia is a low-current Zener diode in SOD123F package, rated for 22 V nominal Zener voltage (±5 % tolerance), 50 µA test current, and 830 mW total power dissipation. It functions as a precision voltage reference or regulator in low-bias circuits, with intentional leakage optimization for fast switching and noise reduction in automotive sensor interfaces and battery-powered ECUs.
For engineers reviewing the BZT5250H-C22-QX datasheet, BZT5250H-C22-QX pinout, BZT5250H-C22-QX application, or BZT5250H-C22-QX equivalent, key selection criteria include its AEC-Q101 qualification, 22 V ±5 % regulation at 50 µA, SOD123F thermal performance (Rth(j-sp) = 150 K/W), and optimized leakage profile for noise-sensitive analog front-ends.
Technical Context
This Zener diode operates in reverse breakdown with a specified VZ of 20.9 V to 23.1 V at IZ = 50 µA, exhibiting a temperature coefficient of +0.05 mV/K and differential resistance ≤250 Ω at IZ = 5 mA. Its design targets stable low-current regulation where minimal bias current and predictable thermal drift are critical.
The device uses an intentional minor rise in leakage current-documented in AN90031-to reduce switching transients and improve noise immunity in signal conditioning paths. It is qualified per AEC-Q101 and mounted on FR4 PCB with 1 cm² cathode pad for thermal management up to 150 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 20.9 V to 23.1 V at IZ = 50 µA - defines regulation setpoint under ultra-low bias conditions |
| Tolerance | ±5 % - supports cost-optimized designs where tighter tolerance is not required |
| Total Power Dissipation | 830 mW at Tamb ≤ 25 °C - enables operation in compact SOD123F footprint without forced cooling |
| Forward Voltage VF | ≤ 0.9 V at IF = 10 mA - ensures low conduction loss when used bidirectionally or in clamp configurations |
| Junction Temperature | −55 °C to +150 °C - supports full automotive ambient range including under-hood environments |
| Thermal Resistance Rth(j-sp) | 150 K/W - quantifies heat transfer efficiency from junction to cathode solder point on standard FR4 |
| Reverse Current IR | ≤ 0.05 µA at VR = 17.6 V - confirms sharp knee and low leakage below regulation threshold |
Pinout & Package
SOD123F plastic surface-mount 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; primary heat path to PCB pad |
| 2 | Anode (A) | Connected to reference or ground potential; reverse-biased during Zener operation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive use including engine control, body electronics, and ADAS sensor modules |
| Low test current (50 µA) | Enables regulation in micro-power systems such as coin-cell IoT sensors and wake-up circuitry |
| Optimized leakage profile | Intentional minor leakage improves transient response and reduces high-frequency noise in feedback loops |
| Small SOD123F footprint | Reduces PCB area by >30 % vs. DO-35; compatible with high-density reflow assembly |
| Stable temperature coefficient | +0.05 mV/K ensures <±0.5 % VZ drift over −40 °C to +125 °C ambient |
Applications
| Automotive Cabin Sensors | Industrial Battery Monitors |
|---|---|
Use Scenario: Voltage reference for MEMS accelerometer signal conditioning in HVAC control modules. IC Role / Device Role / Timing Role: Zener reference providing stable 22 V bias to op-amp input stage. Use Value: ±5 % tolerance and low 50 µA test current enable accurate offset calibration without loading the sensor's low-output-impedance source. |
Use Scenario: Overvoltage clamp in 24 V LiFePO₄ battery monitoring IC input protection. IC Role / Device Role / Timing Role: Reverse-biased Zener clamping transient spikes above 23.1 V. Use Value: 830 mW power rating and 150 K/W Rth(j-sp) allow safe energy absorption during 100 µs surges without thermal runaway. |
| Medical Wearable Power Rails | Smart Meter Reference Circuits |
Use Scenario: Low-power voltage reference for ADC in glucose meter analog front-end. IC Role / Device Role / Timing Role: Precision 22 V Zener supplying reference to rail-to-rail comparator. Use Value: Optimized leakage behavior minimizes noise coupling into sensitive bio-signal paths, improving SNR by ≥3 dB. |
Use Scenario: Secondary reference in polyphase electricity meter MCU supply supervision. IC Role / Device Role / Timing Role: Standby-mode Zener regulator maintaining 22 V for real-time clock backup circuitry. Use Value: AEC-Q101 qualification and −55 °C to +150 °C operation 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 |
|---|---|---|---|
| BZT5250H-B22-Q | ±2 % tolerance (21.6 V–22.4 V), lower leakage, no intentional leakage optimization | Better for precision reference; less suitable for noise-critical switching paths | Select when absolute VZ accuracy outweighs noise immunity requirements |
| MMSZ5247ET1G | 20 V nominal, ±5 %, SOD-123 package, 500 mW Ptot, non-AEC-Q101 | Limited to industrial/commercial use; lower power handling and unqualified for automotive | Use only in cost-sensitive non-automotive designs where 22 V exactness and AEC compliance are not required |
Compared with BZT5250H-C22-QX, the BZT5250H-B22-Q offers tighter voltage control but lacks the noise-reduction leakage tuning, while MMSZ5247ET1G sacrifices automotive qualification and thermal robustness for lower unit cost in benign environments.
Availability
BZT5250H-C22-QX is available at Aetrix Electronics and suitable for automotive cabin electronics, industrial battery monitoring systems, and medical wearable power management requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for BZT5250H-C22-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 discrete and logic devices, with leadership in automotive-qualified components and advanced packaging.
The BZT5250H-Q series belongs to Nexperia's AEC-Q101-qualified Zener diode portfolio, engineered specifically for low-current regulation in automotive sensor interfaces, ECU power supervision, and noise-sensitive analog subsystems.
FAQ
What is the maximum reverse voltage before breakdown for BZT5250H-C22-QX?
The guaranteed Zener voltage range is 20.9 V to 23.1 V at IZ = 50 µA. Below 20.9 V, reverse current remains ≤0.05 µA. Breakdown is gradual-not abrupt-and the device exhibits stable regulation within this band under specified thermal conditions.
Can BZT5250H-C22-QX be used in forward conduction mode?
Yes-it conducts forward with VF ≤ 0.9 V at 10 mA, making it usable as a low-drop clamp or level shifter. However, its primary design intent is reverse-bias Zener regulation; forward characteristics are secondary and not optimized for sustained conduction.
How does the "intentional minor rise of leakage current" affect circuit performance?
This controlled leakage-detailed in AN90031-reduces minority-carrier storage time, enabling faster turn-off and lower switching noise. In practice, it improves transient response in feedback networks and suppresses ringing in high-impedance reference nodes without compromising DC regulation accuracy.
Is the SOD123F package compatible with standard reflow profiles?
Yes-Nexperia specifies reflow soldering as the only recommended method. The SOD123F footprint (2.9 mm × 1.6 mm land, 1.2 mm pad width) aligns with IPC-7351B, and thermal mass supports peak temperatures up to 260 °C for ≤30 seconds without degradation.
BZT5250H-C22-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):
- 22 V
- Tolerance:
- ±5%
- Power - Max:
- 375 mW
- Impedance (Max) (Zzt):
- 55 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 16.7 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-C22-QX FAQ
1.How can I place an order for BZT5250H-C22-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT5250H-C22-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-C22-QX reliable?
The price and inventory of BZT5250H-C22-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-C22-QX is usually 5 days.
3.What payment methods are accepted for BZT5250H-C22-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT5250H-C22-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT5250H-C22-QX?
BZT5250H-C22-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT5250H-C22-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-C22-QX?
For technical support, including BZT5250H-C22-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT5250H-C22-QX requirements.
6.How does Aetrix verify that BZT5250H-C22-QX is sourced from the original manufacturer or authorized distributors?
All BZT5250H-C22-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-C22-QX meets industry standards.
7.What is the process for return or replacement of BZT5250H-C22-QX?
All BZT5250H-C22-QX units undergo pre-shipment inspection (PSI). If there is an issue with BZT5250H-C22-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-C22-QX part is unused and in its original packaging.
Return procedure for BZT5250H-C22-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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