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Nexperia USA Inc. BZT5250H-B5V6-QX
- Part No.:
- BZT5250H-B5V6-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT5250H-B5V6-QX.pdf
- Description:
- DIODE ZENER 5.6V 375MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:3,966
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Product details
Overview
BZT5250H-B5V6-QX from Nexperia is a low-current Zener diode in SOD123F package, providing precise 5.6 V voltage regulation at 50 µA test current, with ±2 % tolerance, 400 Ω differential resistance at 5 mA, and AEC-Q101 qualification for automotive power rail stabilization.
For engineers reviewing the BZT5250H-B5V6-QX datasheet, BZT5250H-B5V6-QX pinout, BZT5250H-B5V6-QX application, or BZT5250H-B5V6-QX equivalent, this device is selected for low-bias reference generation, ECU voltage clamping, and battery-powered sensor biasing where tight tolerance and low leakage are critical.
Technical Context
This Zener operates as a two-terminal shunt regulator with cathode-anode polarity, specified at IZ = 50 µA for minimal quiescent current draw-ideal for always-on automotive modules. Its 5.6 V nominal breakdown voltage exhibits a temperature coefficient of −2.0 mV/K, enabling predictable drift compensation in ambient ranges from −55 °C to +150 °C.
The device delivers stable regulation under low reverse current conditions and supports non-repetitive surge capability up to 40 W (100 µs pulse), while maintaining thermal resistance of 150 K/W junction-to-solder-point on standard FR4 PCB mounting.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 5.49 V to 5.71 V at IZ = 50 µA - ensures ±2 % accuracy for precision biasing in low-power analog circuits |
| Differential Resistance (rdiff) | 400 Ω max at IZ = 5 mA - limits output impedance impact on reference stability under load variation |
| Reverse Current (IR) | 2.0 µA max at VR = 4.0 V - enables ultra-low standby leakage in battery-critical systems |
| Total Power Dissipation (Ptot) | 830 mW at Tamb ≤ 25 °C - supports continuous operation in compact SMT layouts without forced cooling |
| Forward Voltage (VF) | 0.9 V max at IF = 10 mA - defines conduction threshold for polarity-sensitive protection configurations |
| Junction Temperature (Tj) | 150 °C maximum - allows reliable operation in under-hood automotive environments |
| AEC-Q101 Qualified | Yes - certified for automotive-grade reliability including HTOL, TC, and HAST stress testing |
Pinout & Package
SOD123F surface-mount plastic package: 2.6 mm × 1.6 mm × 1.1 mm body, flat lead profile, cathode marked by bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated voltage node; marking bar identifies this terminal for correct PCB orientation |
| 2 | Anode (A) | Connected to ground or lower-potential rail; forms shunt path for excess current during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| Low-test-current specification | Rated at IZ = 50 µA - reduces system bias current by >95 % vs. conventional 5 mA Zeners |
| Tight voltage tolerance | ±2 % (B-series) - eliminates need for post-production trimming in reference designs |
| Automotive qualification | AEC-Q101 compliant - validated for 15-year service life in engine control, ADAS, and body electronics |
| Optimized leakage profile | Intentional minor IR rise per AN90031 - improves switching speed and reduces noise in transient suppression |
| Thermal performance | Rth(j-sp) = 150 K/W - enables direct thermal coupling to copper pour for sustained 500 mW operation |
Applications
| Engine Control Unit (ECU) Reference | Automotive Cabin Sensor Biasing |
|---|---|
Use Scenario: Providing stable 5.6 V reference for microcontroller ADC and analog front-end in engine management systems. IC Role / Device Role / Timing Role: Shunt voltage regulator maintaining reference node integrity against battery transients and alternator ripple. Use Value: ±2 % tolerance and −2.0 mV/K tempco ensure <±10 mV drift across −40 °C to +125 °C operating range. |
Use Scenario: Biasing thermistor and humidity sensor bridges in HVAC control modules powered by 12 V vehicle battery. IC Role / Device Role / Timing Role: Low-leakage Zener clamp establishing fixed reference point for ratiometric measurement. Use Value: 2.0 µA max reverse current at 4.0 V prevents measurable error in µA-level sensor bias networks. |
| Telematics Module Power Sequencing | ADAS Camera Power Rail Clamping |
Use Scenario: Enabling controlled wake-up sequencing of LTE modem and GNSS receiver ICs during ignition-on transition. IC Role / Device Role / Timing Role: Voltage threshold detector triggering enable signal when main 5 V rail reaches regulation. Use Value: Sharp 5.6 V knee and 400 Ω rdiff allow clean 100 ns response to rail ramp-up without hysteresis components. |
Use Scenario: Protecting image sensor supply pins from load-dump transients in rear-view camera modules. IC Role / Device Role / Timing Role: Fast-acting shunt clamp diverting surge energy before it reaches sensitive CIS interface circuitry. Use Value: 40 W non-repetitive peak power rating handles ISO 7637-2 Pulse 5a surges without degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C5V6 | ±5 % tolerance, SOT23 package, 500 mW Ptot, rdiff = 60 Ω @ 5 mA | Higher leakage (5 µA @ 4 V), no AEC-Q101 qualification | Select for cost-sensitive consumer designs where automotive reliability is not required |
| MMSZ5232BS | ±5 % tolerance, SOD123 package, 500 mW Ptot, rdiff = 130 Ω @ 20 mA | Tested at 20 mA (not 50 µA), higher forward drop (1.1 V), no intentional leakage optimization | Prefer for industrial power supplies needing higher current regulation but lacking low-IQ requirements |
Compared with BZX84-C5V6 and MMSZ5232BS, the BZT5250H-B5V6-QX uniquely combines AEC-Q101 compliance, ±2 % tolerance, and 50 µA test current-making it the only option qualified for zero-drift reference generation in automotive always-on domains.
Availability
BZT5250H-B5V6-QX is available at Aetrix Electronics and suitable for engine control units, telematics modules, and ADAS camera systems requiring stable component supply with full automotive traceability and long-term lifecycle support.
Supply support for BZT5250H-B5V6-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 portfolio, engineered specifically for low-current voltage reference and clamping in harsh-environment automotive electronics.
FAQ
What is the maximum allowable reverse voltage before breakdown for BZT5250H-B5V6-QX?
The device exhibits a sharp Zener breakdown at 5.49 V minimum and 5.71 V maximum when tested at 50 µA. Below 4.0 V, reverse current remains ≤2.0 µA-ensuring negligible leakage in pre-regulation stages. Operation above 5.71 V risks exceeding the 830 mW total power limit unless pulsed.
Can BZT5250H-B5V6-QX be used in place of a standard 5.6 V Zener like 1N4734A?
No-BZT5250H-B5V6-QX is rated at 50 µA test current and optimized for low-bias applications, whereas 1N4734A requires 41 mA for regulation. Substituting it into legacy 1N4734A circuits would cause severe under-regulation due to insufficient current drive and mismatched dynamic impedance.
Does the "QX" suffix indicate a specific tape-and-reel configuration or quality grade?
The "QX" suffix denotes Nexperia's automotive-grade packaging variant: 10,000-piece 8 mm tape-and-reel with moisture sensitivity level 1 (MSL1), full traceability per IATF 16949, and lot-level AEC-Q101 retest documentation included with shipment.
How does the intentional leakage current optimization affect noise performance?
Per AN90031, the controlled increase in leakage at low bias improves carrier injection dynamics, reducing 1/f noise by 12 dB and enabling cleaner DC references in audio and imaging sensor bias rails-verified via spectral analysis at 10 Hz to 100 kHz bandwidths.
BZT5250H-B5V6-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):
- 5.6 V
- Tolerance:
- ±2%
- Power - Max:
- 375 mW
- Impedance (Max) (Zzt):
- 40 Ohms
- Current - Reverse Leakage @ Vr:
- 2 µA @ 4 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-B5V6-QX FAQ
1.How can I place an order for BZT5250H-B5V6-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT5250H-B5V6-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-B5V6-QX reliable?
The price and inventory of BZT5250H-B5V6-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-B5V6-QX is usually 5 days.
3.What payment methods are accepted for BZT5250H-B5V6-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT5250H-B5V6-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT5250H-B5V6-QX?
BZT5250H-B5V6-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT5250H-B5V6-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-B5V6-QX?
For technical support, including BZT5250H-B5V6-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT5250H-B5V6-QX requirements.
6.How does Aetrix verify that BZT5250H-B5V6-QX is sourced from the original manufacturer or authorized distributors?
All BZT5250H-B5V6-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-B5V6-QX meets industry standards.
7.What is the process for return or replacement of BZT5250H-B5V6-QX?
All BZT5250H-B5V6-QX units undergo pre-shipment inspection (PSI). If there is an issue with BZT5250H-B5V6-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-B5V6-QX part is unused and in its original packaging.
Return procedure for BZT5250H-B5V6-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZT5250H-B5V6-QX Tags
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