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Nexperia USA Inc. BZT5250H-C6V8X
- Part No.:
- BZT5250H-C6V8X
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT5250H-C6V8X.pdf
- Description:
- DIODE ZENER 6.8V 375MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:7,935
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Product details
Overview
BZT5250H-C6V8 from Nexperia is a low-current Zener diode in SOD123F package, designed for precision voltage regulation at 6.8 V nominal with ±5 % tolerance, specified at 50 µA test current, and rated for 830 mW total power dissipation. It serves as a stable reference or clamp in portable battery-powered circuits, sensor biasing networks, and low-power analog signal conditioning stages.
For engineers reviewing the BZT5250H-C6V8 datasheet, BZT5250H-C6V8 pinout, BZT5250H-C6V8 application, or BZT5250H-C6V8 equivalent, key selection criteria include its low-test-current Zener voltage stability (6.46–7.14 V), 80 Ω differential resistance at 5 mA, +1.2 mV/K temperature coefficient, 100 pF capacitance at 0 V, and intentional leakage optimization for noise-sensitive regulation.
Technical Context
This Zener diode operates in reverse breakdown mode with a nominal Zener voltage of 6.8 V, characterized at IZ = 50 µA for low-bias accuracy and validated up to 5 mA for dynamic regulation performance. Its differential resistance of 80 Ω at 5 mA ensures minimal voltage shift under load variation, while the +1.2 mV/K temperature coefficient enables predictable drift compensation in ambient-variant environments.
The device features intentionally elevated leakage current-per AN90031-to reduce switching transients and high-frequency noise in regulation paths. Thermal resistance from junction to solder point is 150 K/W, supporting reliable operation on standard FR4 PCBs with single-sided copper and tin-plated cathode pad.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 6.46 V to 7.14 V at IZ = 5 mA - defines regulation window under typical operating current |
| Differential Resistance (rdiff) | 80 Ω at IZ = 5 mA - determines output impedance and load regulation error |
| Temperature Coefficient (SZ) | +1.2 mV/K - quantifies voltage drift per degree Celsius for thermal design margining |
| Diode Capacitance (Cd) | 100 pF at f = 1 MHz, VR = 0 V - impacts high-frequency bypass and noise filtering capability |
| Forward Voltage (VF) | 0.9 V at IF = 10 mA - sets conduction loss when used in forward-biased protection or clamping |
| Total Power Dissipation (Ptot) | 830 mW at Tamb ≤ 25 °C - establishes maximum steady-state thermal envelope on standard PCB layout |
| Reverse Current (IR) | 0.1 µA at VR = 5.1 V - confirms sharp knee and low leakage below regulation threshold |
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 with standard footprint (cathode pad area 1 cm²).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (marked side) | Cathode (K) | Connected to regulated output node; marking bar identifies this terminal for correct orientation during assembly |
| 2 | Anode (A) | Connected to ground or lower-potential rail; reverse-biased configuration enables Zener breakdown regulation |
Key Features
| Feature | Design Value |
|---|---|
| Low-test-current Zener specification | Rated at 50 µA - enables accurate voltage reference in micro-power systems where bias current must be minimized |
| Optimized leakage profile | Intentionally elevated IR per AN90031 - reduces switching noise and improves transient response in sensitive analog rails |
| Tight thermal resistance control | Rth(j-sp) = 150 K/W - supports predictable derating and thermal management without heatsinking on standard PCBs |
| Small-form-factor SMD packaging | SOD123F footprint - allows high-density layout in space-constrained portable and wearable electronics |
| Two-tolerance series | ±5 % (C-series) - balances cost and precision for non-critical regulation tasks requiring robustness over absolute accuracy |
Applications
| Portable Sensor Biasing | Microcontroller Reset Clamping |
|---|---|
|
Use Scenario: Providing stable 6.8 V bias to analog front-end amplifiers in battery-operated environmental sensors. IC Role / Device Role / Timing Role: Zener diode acting as precision shunt reference, maintaining constant voltage across sensor supply despite battery discharge. Use Value: Enables <1 % full-scale measurement error over 2.8–4.2 V Li-ion range by fixing reference point independent of input rail sag. |
Use Scenario: Clamping reset line voltage to prevent false triggering during brown-out conditions in ultra-low-power MCUs. IC Role / Device Role / Timing Role: Shunt regulator holding reset pin at defined logic-high threshold until supply stabilizes. Use Value: Guarantees clean, noise-immune reset assertion with 100 pF capacitance limiting RF coupling into sensitive digital inputs. |
| Low-Power ADC Reference | USB-C PD Feedback Divider |
|
Use Scenario: Supplying reference voltage to 12-bit SAR ADCs in energy-harvesting nodes where quiescent current must remain sub-10 µA. IC Role / Device Role / Timing Role: Low-current Zener providing stable VREF without loading harvested source. Use Value: Delivers 6.8 V ±5 % accuracy at 50 µA test current, matching ADC's internal reference scaling requirements without external op-amp buffering. |
Use Scenario: Setting feedback voltage in secondary-side regulation loop of USB-C Power Delivery adapters. IC Role / Device Role / Timing Role: Precision shunt element in resistor divider network that scales output voltage for optocoupler feedback. Use Value: 80 Ω rdiff minimizes divider ratio error under load variation, improving output regulation to ±1.5 % across 0–100 W load range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZT52C6V8 | Same SOD123F package and 6.8 V rating but ±5 % tolerance without intentional leakage optimization | Lacks AN90031 noise-reduction tuning; higher switching transients in fast-rail applications | Select when lowest-cost 6.8 V Zener suffices and noise sensitivity is not critical |
| MMSZ5235B | Same 6.8 V nominal, ±5 %, but in SOD-123 package with 100 Ω rdiff at 20 mA and no documented leakage enhancement | Higher test current (20 mA) increases static power draw; less suitable for µA-level biasing | Prefer only if legacy compatibility with MMSZ52xx footprint is required and 50 µA operation is unnecessary |
Compared with BZT52C6V8 and MMSZ5235B, the BZT5250H-C6V8 uniquely combines 50 µA test current specification, intentional leakage tuning for noise reduction, and 80 Ω dynamic impedance-making it optimal for battery-constrained, noise-sensitive regulation where other variants trade off either quiescent current or spectral purity.
Availability
BZT5250H-C6V8 is available at Aetrix Electronics and suitable for portable sensor biasing, microcontroller reset clamping, and low-power ADC reference applications requiring stable component supply, consistent parametric performance, and long-term lifecycle continuity.
Supply support for BZT5250H-C6V8 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 and industrial-grade components.
The BZT5250H series belongs to Nexperia's low-current Zener diode product line, engineered specifically for precision voltage regulation in battery-powered, space-constrained, and noise-sensitive analog subsystems.
FAQ
What is the Zener voltage tolerance and test condition for BZT5250H-C6V8?
The BZT5250H-C6V8 has a nominal Zener voltage of 6.8 V with ±5 % tolerance, verified at IZ = 5 mA per Table 8. Its tighter specification window (6.46 V to 7.14 V) is guaranteed under these conditions, and it is also characterized at 50 µA for low-bias applications-enabling use in micro-power designs where traditional 5 mA testing is impractical.
How does the intentional leakage current improve performance?
Per application note AN90031, the BZT5250H-C6V8 features deliberately elevated reverse leakage to suppress high-frequency ringing and switching transients during regulation transitions. This reduces electromagnetic interference in adjacent analog circuitry and improves stability in fast-rail applications such as USB-C PD feedback loops or sensor bias rails subject to rapid load changes.
Can BZT5250H-C6V8 replace standard 6.8 V Zeners like BZX584-C6V8?
No-BZT5250H-C6V8 is not a drop-in replacement for BZX584-C6V8 due to differing package (SOD123F vs. SOD523), thermal characteristics (Rth(j-sp) = 150 K/W vs. ~250 K/W), and electrical behavior (intentional leakage tuning). While both regulate at 6.8 V, the BZT5250H-C6V8 requires specific layout attention to its cathode pad thermal mass and benefits most in low-current, noise-critical roles where BZX584-C6V8 is optimized for higher-power dissipation.
What is the maximum continuous forward current rating?
The BZT5250H-C6V8 is rated for a maximum continuous forward current (IF) of 200 mA per Table 5. At IF = 10 mA, its forward voltage is ≤ 0.9 V, making it suitable for low-loss clamping or polarity protection functions-but sustained forward conduction is not its primary design intent, and thermal limits must be observed using the 830 mW Ptot derating curve.
BZT5250H-C6V8X 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):
- 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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123F
BZT5250H-C6V8X FAQ
1.How can I place an order for BZT5250H-C6V8X through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT5250H-C6V8X 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-C6V8X reliable?
The price and inventory of BZT5250H-C6V8X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT5250H-C6V8X is usually 5 days.
3.What payment methods are accepted for BZT5250H-C6V8X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT5250H-C6V8X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT5250H-C6V8X?
BZT5250H-C6V8X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT5250H-C6V8X 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-C6V8X?
For technical support, including BZT5250H-C6V8X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT5250H-C6V8X requirements.
6.How does Aetrix verify that BZT5250H-C6V8X is sourced from the original manufacturer or authorized distributors?
All BZT5250H-C6V8X 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-C6V8X meets industry standards.
7.What is the process for return or replacement of BZT5250H-C6V8X?
All BZT5250H-C6V8X units undergo pre-shipment inspection (PSI). If there is an issue with BZT5250H-C6V8X, 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-C6V8X part is unused and in its original packaging.
Return procedure for BZT5250H-C6V8X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZT5250H-C6V8X Tags
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