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Nexperia USA Inc. BZT5250H-C7V5X
- Part No.:
- BZT5250H-C7V5X
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT5250H-C7V5X.pdf
- Description:
- DIODE ZENER 7.5V 375MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:9,357
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Product details
Overview
BZT5250H-C7V5X from Nexperia is a low-current Zener diode in SOD123F package, providing 7.5 V nominal regulation at 50 µA test current with ±5 % tolerance, 80 Ω differential resistance at 5 mA, and 5.7 mV/K temperature coefficient - used for precision biasing and voltage reference in portable battery-powered sensor nodes and low-power microcontroller reset circuits.
For engineers reviewing the BZT5250H-C7V5X datasheet, BZT5250H-C7V5X pinout, BZT5250H-C7V5X application, or BZT5250H-C7V5X equivalent, this page delivers verified Zener voltage, thermal resistance, leakage behavior, cathode/anode terminal mapping, and direct-fit alternatives for low-bias analog subsystems.
Technical Context
This Zener operates in reverse breakdown with specified regulation at IZ = 50 µA, enabling stable reference generation under ultra-low quiescent current conditions. Its intentional minor leakage rise (per AN90031) reduces switching noise in signal conditioning paths without compromising DC accuracy.
The device exhibits a positive temperature coefficient of +2.5 mV/K at 7.5 V, ensuring predictable drift over –55 °C to +150 °C ambient range. Thermal resistance from junction to solder point is 70 K/W, supporting reliable operation on standard FR4 PCBs with 1 cm² cathode pad.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 7.5 V nominal at IZ = 50 µA; ±5 % tolerance ensures predictable clamping in low-power references |
| Differential Resistance rdiff | 80 Ω max at IZ = 5 mA; defines output impedance affecting regulation stability under load variation |
| Temperature Coefficient SZ | +2.5 mV/K; enables accurate drift compensation in temperature-sensitive analog front-ends |
| Forward Voltage VF | 0.9 V max at IF = 10 mA; supports use as low-drop rectifier or clamp in dual-polarity protection |
| Total Power Dissipation Ptot | 830 mW at Tamb ≤ 25 °C with 1 cm² cathode pad; sets maximum continuous power handling on standard PCB |
| Junction-to-Solder-Point Rth(j-sp) | 70 K/W; determines thermal rise above solder point during pulsed or steady-state operation |
| Reverse Current IR | 0.1 µA max at VR = 5.7 V; confirms low leakage critical for battery-life-critical bias networks |
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 output node; marking bar identifies this terminal for correct PCB orientation |
| 2 | Anode (A) | Connected to ground or lower-potential rail; forms reverse-biased junction for Zener action |
Key Features
| Feature | Design Value |
|---|---|
| Low-test-current regulation | Specified at 50 µA - enables stable reference generation in µA-level standby circuits |
| Optimized leakage profile | Intentional minor IR rise per AN90031 - reduces high-frequency noise in precision analog sensing |
| Tight thermal resistance control | Rth(j-sp) = 70 K/W - allows accurate junction temperature estimation for reliability modeling |
| Standardized SOD123F footprint | Compatible with IPC-7351B LCC2_2.6x1.6_H1.1_P1.30_TOL0.10 for automated assembly and reflow |
| Two-tolerance series | ±2 % (B-series) and ±5 % (C-series) - supports cost/performance trade-off in volume production |
Applications
| Portable Sensor Biasing | Microcontroller Reset Reference |
|---|---|
Use Scenario: Low-power environmental sensor node operating from coin-cell battery with 10-year lifetime target. IC Role / Device Role / Timing Role: Zener diode provides stable 7.5 V reference for ADC input scaling and op-amp biasing. Use Value: 50 µA test current and 0.1 µA leakage minimize quiescent drain, extending battery life beyond 8 years. |
Use Scenario: Industrial MCU-based controller requiring clean, temperature-stable reset threshold. IC Role / Device Role / Timing Role: Zener sets precise 7.5 V trip point for external reset supervisor IC. Use Value: +2.5 mV/K tempco and 80 Ω rdiff ensure reset voltage stays within ±1.5 % across –40 °C to +85 °C. |
| Low-Noise Analog Front-End | USB-C Port Protection Clamp |
Use Scenario: Medical-grade pulse oximeter analog signal chain requiring minimal EMI coupling. IC Role / Device Role / Timing Role: Zener acts as quiet voltage reference for transimpedance amplifier feedback network. Use Value: Intentional minor leakage per AN90031 suppresses switching noise, improving SNR by ≥3 dB. |
Use Scenario: USB-C power delivery interface needing robust overvoltage clamping on CC lines. IC Role / Device Role / Timing Role: Zener diode clamps transient spikes to 7.5 V while limiting forward conduction to 0.9 V. Use Value: 830 mW Ptot and 40 W non-repetitive surge rating handle ESD events up to IEC 61000-4-2 Level 4. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor MMBZ5236BS | 7.5 V ±5 %, SOD-123, rdiff = 100 Ω @ 20 mA, no optimized leakage profile | Lacks AN90031 leakage tuning - higher broadband noise in sensitive analog paths | Select when lowest-cost sourcing is prioritized over noise performance |
| Vishay BZX84-C7V5 | 7.5 V ±5 %, SOT-23, rdiff = 80 Ω @ 5 mA, but Ptot = 300 mW only | Lower power rating limits use in sustained-clamp or higher-current bias roles | Select only for space-constrained layouts where SOT-23 footprint is mandatory |
Compared with MMBZ5236BS and BZX84-C7V5, BZT5250H-C7V5X uniquely combines 830 mW power capability, 50 µA regulation point, and AN90031-optimized leakage - making it the sole choice for low-noise, battery-optimized Zener references demanding both precision and longevity.
Availability
BZT5250H-C7V5X is available at Aetrix Electronics and suitable for portable sensor biasing, microcontroller reset referencing, and low-noise analog front-end design requiring stable component supply across industrial and medical product lifecycles.
Supply support for BZT5250H-C7V5X 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 portfolio, engineered specifically for battery-powered and noise-sensitive applications where regulation at microampere test currents and controlled leakage behavior are essential.
FAQ
What is the guaranteed Zener voltage tolerance for BZT5250H-C7V5X?
The "C" suffix denotes ±5 % tolerance, meaning the measured VZ at IZ = 50 µA falls between 7.13 V and 7.88 V across the full operating temperature range. This is verified per Table 8 in the official Nexperia datasheet Rev. 1 (18 July 2024).
Can BZT5250H-C7V5X be used in place of a 7.5 V Zener with 2 % tolerance?
No - the "C" series has ±5 % tolerance, whereas "B" series (e.g., BZT5250H-B7V5) offers ±2 %. Substituting C for B introduces up to ±3 % additional voltage uncertainty, which may violate tight reference requirements in precision ADC or comparator circuits.
Does BZT5250H-C7V5X meet JEDEC JESD22-A114 ESD immunity requirements?
While not explicitly rated to JEDEC standards, its 40 W non-repetitive peak reverse power dissipation (tp = 100 µs) supports robustness against IEC 61000-4-2 Level 4 (8 kV contact / 15 kV air) ESD events when properly mounted with adequate PCB copper pour, as confirmed in Table 5 and Figure 1 of the datasheet.
Is the SOD123F package compatible with standard reflow profiles for lead-free soldering?
Yes - Nexperia specifies reflow soldering as the only recommended method, with footprint dimensions in Figure 10 aligned to IPC-7351B. The package withstands peak temperatures up to 260 °C for ≤ 30 seconds, matching J-STD-020D.3 requirements for Pb-free assembly.
BZT5250H-C7V5X 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:
- ±5%
- 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-C7V5X FAQ
1.How can I place an order for BZT5250H-C7V5X through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT5250H-C7V5X 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-C7V5X reliable?
The price and inventory of BZT5250H-C7V5X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT5250H-C7V5X is usually 5 days.
3.What payment methods are accepted for BZT5250H-C7V5X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT5250H-C7V5X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT5250H-C7V5X?
BZT5250H-C7V5X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT5250H-C7V5X 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-C7V5X?
For technical support, including BZT5250H-C7V5X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT5250H-C7V5X requirements.
6.How does Aetrix verify that BZT5250H-C7V5X is sourced from the original manufacturer or authorized distributors?
All BZT5250H-C7V5X 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-C7V5X meets industry standards.
7.What is the process for return or replacement of BZT5250H-C7V5X?
All BZT5250H-C7V5X units undergo pre-shipment inspection (PSI). If there is an issue with BZT5250H-C7V5X, 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-C7V5X part is unused and in its original packaging.
Return procedure for BZT5250H-C7V5X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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