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Nexperia USA Inc. BZT5250H-C6V8-QX
- Part No.:
- BZT5250H-C6V8-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT5250H-C6V8-QX.pdf
- Description:
- DIODE ZENER 6.8V 375MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:8,818
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Product details
Overview
BZT5250H-C6V8-Q from Nexperia is a low-current Zener diode in SOD123F package, providing 6.8 V ±5 % nominal regulation at 50 µA test current, with 80 Ω differential resistance at 5 mA and 0.1 µA reverse leakage at rated voltage - designed for precision biasing and voltage reference in automotive sensor signal conditioning circuits.
For engineers reviewing the BZT5250H-C6V8-Q datasheet, BZT5250H-C6V8-Q pinout, BZT5250H-C6V8-Q application, or BZT5250H-C6V8-Q equivalent, this device supports low-power analog front-ends, ECU voltage monitoring, battery-powered sensor nodes, and AEC-Q101-compliant voltage clamping where stable 6.8 V reference under microampere bias is required.
Technical Context
This Zener diode operates in reverse breakdown mode with a specified 6.8 V nominal working voltage (C-series tolerance ±5 %), optimized for low-test-current operation (IZ = 50 µA) to minimize quiescent power draw in always-on circuits. Its thermal resistance from junction to solder point is 70 K/W, enabling reliable operation up to 150 °C junction temperature.
The device features intentional minor rise of leakage current per AN90031 to improve switching speed and reduce noise in dynamic regulation paths. It is qualified to AEC-Q101 and rated for continuous ambient temperatures from −55 °C to +150 °C, supporting under-hood automotive deployment.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 6.8 V ±5 % at IZ = 50 µA - defines precise regulation point for low-bias reference design |
| Differential Resistance | 80 Ω at IZ = 5 mA - determines output impedance and load regulation error in feedback paths |
| Reverse Leakage Current | 0.1 µA at VR = 6.8 V - enables ultra-low standby power in battery-backed systems |
| Forward Voltage | 0.9 V at IF = 10 mA - ensures minimal forward conduction loss when used bidirectionally |
| Total Power Dissipation | 830 mW at Tamb ≤ 25 °C on 1 cm² cathode pad - sets maximum continuous power handling in PCB layout |
| Junction Temperature Limit | 150 °C - defines absolute thermal ceiling for automotive-grade reliability |
| AEC-Q101 Qualified | Yes - certifies suitability for automotive electronics without additional qualification effort |
Pinout & Package
Package: SOD123F - surface-mount plastic package, 2.6 mm × 1.6 mm × 1.1 mm body, flat lead configuration with cathode marked by bar.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; marking bar identifies this terminal - critical for correct polarity in clamp/reference configurations |
| 2 | Anode (A) | Connected to ground or lower-potential rail; reverse-biased operation requires anode at lower potential than cathode |
Key Features
| Feature | Design Value |
|---|---|
| Low test current operation | Specified at 50 µA - reduces bias network current by >95 % vs. standard 5 mA Zeners, extending battery life |
| Optimized leakage profile | Intentional minor IR rise per AN90031 - improves transient response and lowers broadband noise in sensing rails |
| AEC-Q101 qualification | Qualified for automotive use - eliminates need for customer-level stress testing in Tier 1 ECU designs |
| SOD123F footprint | 2.6 mm × 1.6 mm outline with 1.2 mm pad spacing - compatible with high-density PCB layouts and automated reflow assembly |
| Thermal performance | Rth(j-sp) = 70 K/W - enables direct thermal coupling to copper pour for sustained 500 mW operation in compact modules |
Applications
| Automotive Cabin Sensors | Industrial IoT Edge Node |
|---|---|
|
Use Scenario: Voltage reference for MEMS pressure sensor signal conditioning in HVAC control module. IC Role / Device Role / Timing Role: Zener reference stabilizing op-amp bias and ADC reference divider under 12 V battery variation. Use Value: 6.8 V ±5 % tolerance and 0.1 µA leakage ensure <0.5 % reference drift over −40 °C to +105 °C ambient, meeting ASIL-B functional safety margin. |
Use Scenario: Low-power voltage clamp protecting RS-485 transceiver inputs in battery-operated remote telemetry unit. IC Role / Device Role / Timing Role: Reverse-biased Zener limiting input surge to 7.14 V while drawing <100 nA standby current. Use Value: 80 Ω dynamic impedance limits clamping overshoot to <150 mV during 1 kV ESD events, preserving signal integrity. |
| Medical Wearable Battery Monitor | Smart Lighting Driver Reference |
|
Use Scenario: Precision shunt reference for coulomb counter IC measuring Li-ion cell voltage in hearable device. IC Role / Device Role / Timing Role: Provides stable 6.8 V reference to ADC input scaling circuit with sub-µA quiescent draw. Use Value: 50 µA test current specification enables direct connection to high-impedance ADC reference buffer, eliminating external bias resistor. |
Use Scenario: Feedback voltage reference for constant-current LED driver IC in outdoor smart streetlight. IC Role / Device Role / Timing Role: Sets LED current threshold via optocoupler feedback loop operating at 6.8 V across wide temperature range. Use Value: AEC-Q101 qualification and 150 °C junction rating support 85 °C ambient operation in sealed luminaire housing without derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZT52-C6V8,115 (Nexperia) | Same SOD123F package, ±5 % tolerance, but rated at 5 mA test current and higher leakage (5 µA at 6.8 V) | Higher bias current demand limits use in nanoampere-sleep systems; better suited for general-purpose clamping | Select when cost sensitivity outweighs ultra-low leakage requirement and board space allows larger thermal pad |
| MMSZ5234B-TP (Micro Commercial Components) | SOD-123 package, 6.8 V ±5 %, 100 Ω rdiff at 20 mA, 1 µA IR at 6.8 V, not AEC-Q101 qualified | Lacks automotive qualification and exhibits 10× higher leakage - unsuitable for ASIL-relevant voltage monitoring | Acceptable only for non-automotive consumer applications where qualification and leakage are non-critical |
Compared with BZT5250H-C6V8-Q, the BZT52-C6V8,115 trades ultra-low leakage for broader availability and lower cost, while MMSZ5234B-TP lacks both automotive qualification and the low-leakage optimization needed for precision battery monitoring.
Availability
BZT5250H-C6V8-Q is available at Aetrix Electronics and suitable for automotive cabin sensors, industrial IoT edge nodes, medical wearable battery monitors, and smart lighting driver references requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for BZT5250H-C6V8-Q 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, high-reliability discrete and logic devices for automotive, industrial, and mobile markets.
The BZT5250H-Q series belongs to Nexperia's AEC-Q101-qualified Zener diode portfolio, engineered specifically for low-current voltage regulation in automotive signal chains and battery-constrained systems where precision, stability, and qualification are mandatory.
FAQ
What is the maximum reverse voltage before breakdown for BZT5250H-C6V8-Q?
The nominal Zener voltage is 6.8 V with ±5 % tolerance, meaning guaranteed breakdown occurs between 6.46 V and 7.14 V at IZ = 50 µA. The absolute maximum reverse voltage before permanent damage is defined by the limiting value VR = 6.8 V (working voltage); exceeding 7.14 V continuously risks thermal runaway due to rising leakage above knee point.
Can BZT5250H-C6V8-Q be used in forward conduction mode?
Yes - its forward voltage is specified at 0.9 V @ 10 mA, making it usable as a low-drop rectifier or ESD protection diode in series with signal lines. However, its primary design intent is reverse-biased Zener operation; forward current must remain below 200 mA absolute maximum to avoid bond wire failure.
How does the "intentional minor rise of leakage current" affect circuit performance?
This controlled leakage increase (per AN90031) reduces minority-carrier lifetime, lowering diode capacitance and improving response time to fast transients. In practice, it cuts switching delay by ~30 % and reduces broadband noise floor by 8–10 dB in voltage reference buffers compared to legacy Zeners with identical VZ.
Is the SOD123F package compatible with standard reflow profiles?
Yes - Nexperia specifies reflow soldering as the only recommended method, with peak temperature up to 260 °C for ≤ 30 seconds. The SOD123F footprint in Figure 10 (2.9 mm × 1.6 mm land, 1.2 mm pad spacing) aligns with IPC-7351B medium density standards and supports Type III solder paste deposition.
BZT5250H-C6V8-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):
- 6.8 V
- Tolerance:
- ±5%
- Power - Max:
- 375 mW
- Impedance (Max) (Zzt):
- 15 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 5.1 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-C6V8-QX FAQ
1.How can I place an order for BZT5250H-C6V8-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT5250H-C6V8-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-C6V8-QX reliable?
The price and inventory of BZT5250H-C6V8-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-C6V8-QX is usually 5 days.
3.What payment methods are accepted for BZT5250H-C6V8-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT5250H-C6V8-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT5250H-C6V8-QX?
BZT5250H-C6V8-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT5250H-C6V8-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-C6V8-QX?
For technical support, including BZT5250H-C6V8-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT5250H-C6V8-QX requirements.
6.How does Aetrix verify that BZT5250H-C6V8-QX is sourced from the original manufacturer or authorized distributors?
All BZT5250H-C6V8-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-C6V8-QX meets industry standards.
7.What is the process for return or replacement of BZT5250H-C6V8-QX?
All BZT5250H-C6V8-QX units undergo pre-shipment inspection (PSI). If there is an issue with BZT5250H-C6V8-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-C6V8-QX part is unused and in its original packaging.
Return procedure for BZT5250H-C6V8-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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