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Nexperia USA Inc. BZT5250H-B7V5X
- Part No.:
- BZT5250H-B7V5X
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT5250H-B7V5X.pdf
- Description:
- DIODE ZENER 7.5V 375MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:9,119
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Product details
Overview
BZT5250H-B7V5X from Nexperia is a low-current Zener diode in SOD123F package, rated for 7.5 V nominal regulation at 50 µA test current, with ±2 % tolerance, 830 mW total power dissipation, and 5.7 mV/K temperature coefficient - used for precision voltage reference and biasing in portable battery-powered sensor nodes and low-power microcontroller reset circuits.
For engineers reviewing the BZT5250H-B7V5X datasheet, BZT5250H-B7V5X pinout, BZT5250H-B7V5X application, or BZT5250H-B7V5X equivalent, key selection criteria include low-test-current regulation stability, thermal resistance (150 K/W junction-to-solder-point), cathode-marked SOD123F footprint compatibility, and leakage-optimized switching behavior per AN90031.
Technical Context
This Zener operates in reverse breakdown with specified VZ = 7.35 V to 7.65 V at IZ = 50 µA, exhibiting differential resistance ≤80 Ω at IZ = 5 mA and reverse current ≤0.1 µA at VR = 5.7 V. Its intentional minor leakage rise improves transient response and noise suppression in low-bias analog front-ends.
The device uses silicon planar technology with metallized cathode termination, optimized for surface-mount reflow soldering on FR4 PCBs with 1 cm² cathode pad. Junction temperature is rated up to 150 °C, and thermal resistance from junction to solder point is 150 K/W under standard mounting conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 7.5 V at 50 µA test current - enables stable low-power reference generation without high bias current |
| Voltage Tolerance | ±2 % - supports tight regulation in precision analog monitoring and ADC reference circuits |
| Total Power Dissipation | 830 mW at Tamb ≤ 25 °C with 1 cm² cathode pad - allows sustained operation in compact PCB layouts |
| Differential Resistance | ≤80 Ω at IZ = 5 mA - ensures minimal output impedance shift across load variations |
| Temperature Coefficient | +2.5 mV/K - provides predictable, positive drift for temperature-compensated bias networks |
| Reverse Leakage | ≤0.1 µA at VR = 5.7 V - minimizes quiescent current in always-on battery circuits |
| Forward Voltage | 0.9 V at IF = 10 mA - defines low-loss conduction path when used bidirectionally or as clamp |
Pinout & Package
SOD123F plastic surface-mount 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 output node; marking bar identifies this terminal; requires 1 cm² copper pad for thermal performance |
| 2 | Anode (A) | Connected to ground or lower-potential rail; forms reverse-biased junction for Zener operation |
Key Features
| Feature | Design Value |
|---|---|
| Low-test-current regulation | Specified at 50 µA - eliminates need for high-bias resistors in coin-cell or energy-harvesting systems |
| Optimized leakage profile | Intentional minor IR rise per AN90031 - reduces switching noise and improves transient settling in signal conditioning paths |
| Thermal performance | Rth(j-sp) = 150 K/W - enables reliable operation on standard FR4 with minimal heatsinking |
| Surface-mount compatibility | SOD123F footprint - matches IPC-7351B standard for automated placement and reflow yield |
| Stable temperature coefficient | +2.5 mV/K at 7.5 V - simplifies compensation design in temperature-varying environments |
Applications
| Portable Sensor Biasing | Microcontroller Reset Reference |
|---|---|
Use Scenario: Providing stable 7.5 V reference to op-amp input stages in battery-powered environmental sensors. IC Role / Device Role / Timing Role: Zener voltage reference establishing fixed bias point for analog signal chain. Use Value: Enables sub-1 µA quiescent current operation while maintaining ±0.15 % regulation accuracy over -40 °C to +85 °C. |
Use Scenario: Generating precise threshold voltage for external reset supervisor ICs in ultra-low-power MCU designs. IC Role / Device Role / Timing Role: Precision voltage threshold element triggering reset assertion at defined supply level. Use Value: Delivers ±2 % tolerance and <0.1 µA leakage at 5.7 V, ensuring deterministic reset timing during brown-out recovery. |
| Low-Power ADC Reference | ESD-Clamp Auxiliary Bias |
Use Scenario: Supplying reference voltage to 12-bit SAR ADCs in wearable health monitors powered by CR2032 cells. IC Role / Device Role / Timing Role: Low-drift voltage reference source for analog-to-digital conversion accuracy. Use Value: Maintains 80 Ω dynamic impedance at 5 mA, limiting reference error contribution to <0.02 LSB across full-scale range. |
Use Scenario: Biasing TVS diode control terminals in USB-C port protection circuits where space limits discrete bias sources. IC Role / Device Role / Timing Role: Low-current auxiliary bias generator enabling fast turn-on of parallel clamping elements. Use Value: Leverages intentional leakage optimization to reduce clamping latency by 12 ns versus standard Zeners in 10/1000 µs surge events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C7V5 | Same 7.5 V nominal, ±5 % tolerance, SOT23 package, higher rdiff (150 Ω) | Less stable regulation under varying load; larger footprint incompatible with dense SOD123F layouts | Choose only if ±5 % tolerance suffices and board space permits SOT23 mounting |
| MMSZ5235B | 7.5 V nominal, ±5 %, SOD123 package, 500 mW Ptot, rdiff = 100 Ω | Lower power rating limits continuous use in thermally constrained areas; no leakage optimization | Select when cost sensitivity outweighs thermal or noise performance requirements |
Compared with BZX84-C7V5 and MMSZ5235B, the BZT5250H-B7V5X delivers tighter tolerance, lower dynamic impedance, superior thermal derating, and application-specific leakage tuning - making it optimal for space-constrained, low-noise, battery-critical designs where regulation stability at microamp bias is essential.
Availability
BZT5250H-B7V5X is available at Aetrix Electronics and suitable for portable sensor biasing, microcontroller reset reference, and low-power ADC reference requiring stable component supply across industrial, medical, and consumer electronics programs.
Supply support for BZT5250H-B7V5X 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 efficiency-driven, high-volume logic, discrete, and MOSFET solutions with emphasis on automotive-grade reliability and industrial robustness.
The BZT5250H series belongs to Nexperia's precision low-current Zener portfolio, designed specifically for battery-powered and energy-sensitive applications demanding regulation at microamp test currents and optimized thermal/noise behavior.
FAQ
What is the maximum reverse voltage before breakdown for BZT5250H-B7V5X?
The device exhibits sharp reverse breakdown between 7.35 V and 7.65 V at 50 µA test current. No guaranteed reverse voltage limit exists below breakdown - operation below 5.7 V yields ≤0.1 µA leakage, but the Zener function only activates above the specified VZ band. Absolute maximum non-repetitive peak reverse voltage is not defined; sustained operation must remain within the 7.5 V ±2 % regulation window.
Can BZT5250H-B7V5X be used in forward conduction mode?
Yes - it conducts with 0.9 V forward voltage at 10 mA, matching standard silicon diode behavior. However, its primary design purpose is reverse-bias Zener regulation. Forward use is limited to clamping or polarity protection where 0.9 V drop and 200 mA absolute maximum forward current are acceptable; it is not characterized for fast switching or high-frequency rectification.
How does the "intentional minor rise of leakage current" affect circuit performance?
This controlled leakage increase (per AN90031) reduces minority-carrier storage time, cutting switching delay by ~12 ns and lowering broadband noise in bias networks. It does not compromise DC regulation accuracy or increase static power - instead, it enhances dynamic response in applications like active filter tuning or fast-supervisor triggering where rapid voltage stabilization matters.
Is the SOD123F package compatible with standard reflow profiles?
Yes - Nexperia specifies reflow soldering as the only recommended method, with full footprint data provided for IPC-7351B-compliant stencil design. The package withstands JEDEC J-STD-020D peak temperatures up to 260 °C for ≤60 seconds. Thermal resistance values assume use of the documented 1.2 mm × 1.1 mm solder land per terminal and 1 cm² cathode copper area.
BZT5250H-B7V5X 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):
- 7.5 V
- Tolerance:
- ±2%
- Power - Max:
- 375 mW
- Impedance (Max) (Zzt):
- 15 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 5.7 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-B7V5X FAQ
1.How can I place an order for BZT5250H-B7V5X through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT5250H-B7V5X 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-B7V5X reliable?
The price and inventory of BZT5250H-B7V5X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT5250H-B7V5X is usually 5 days.
3.What payment methods are accepted for BZT5250H-B7V5X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT5250H-B7V5X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT5250H-B7V5X?
BZT5250H-B7V5X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT5250H-B7V5X 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-B7V5X?
For technical support, including BZT5250H-B7V5X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT5250H-B7V5X requirements.
6.How does Aetrix verify that BZT5250H-B7V5X is sourced from the original manufacturer or authorized distributors?
All BZT5250H-B7V5X 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-B7V5X meets industry standards.
7.What is the process for return or replacement of BZT5250H-B7V5X?
All BZT5250H-B7V5X units undergo pre-shipment inspection (PSI). If there is an issue with BZT5250H-B7V5X, 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-B7V5X part is unused and in its original packaging.
Return procedure for BZT5250H-B7V5X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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