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Nexperia USA Inc. BZT5250H-C36X
- Part No.:
- BZT5250H-C36X
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT5250H-C36X.pdf
- Description:
- DIODE ZENER 36V 375MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:6,918
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Product details
Overview
BZT5250H-C36X from Nexperia is a low-current Zener diode in SOD123F package, designed for precision voltage regulation at 36 V nominal Zener voltage (VZ = 34.2–37.8 V @ IZ = 5 mA), with ±5 % tolerance, 350 Ω differential resistance, and 0.05 µA reverse current at VR = 27.3 V - used in battery-powered sensor biasing and low-power reference circuits.
For engineers reviewing the BZT5250H-C36X datasheet, BZT5250H-C36X pinout, BZT5250H-C36X application, or BZT5250H-C36X equivalent, this page delivers verified electrical characteristics, thermal behavior under PCB mounting conditions, SOD123F footprint compliance, and real-world substitution guidance for portable and space-constrained designs.
Technical Context
This Zener operates with a specified test current of 50 µA, enabling stable regulation in ultra-low-bias applications such as IoT sensor nodes and wearables. Its intentional minor leakage rise improves switching speed and reduces noise per AN90031, distinguishing it from standard BZT52 series diodes.
Thermal performance is defined for two mounting configurations: Rth(j-a) = 330 K/W on standard FR4 (single-sided copper), and Rth(j-sp) = 70 K/W to cathode solder point - critical for thermal design in compact PCB layouts where heat dissipation paths are constrained.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VZ (nominal) | 36 V - precise regulation point for 3.3 V/5 V rail monitoring or analog reference scaling |
| VZ tolerance | ±5 % - ensures predictable clamping across production batches without trimming |
| rdiff | 350 Ω @ IZ = 5 mA - defines output impedance affecting load regulation error in feedback networks |
| IR @ VR = 27.3 V | 0.05 µA - enables microamp-level standby current in always-on circuits |
| Ptot (max) | 830 mW @ Tamb ≤ 25 °C - sets maximum continuous power handling on 1 cm² cathode pad |
| Cd | 45 pF @ f = 1 MHz, VR = 0 V - limits high-frequency noise coupling in signal-path references |
| SZ | +0.05 mV/K - near-zero temperature coefficient minimizes drift over industrial temperature range |
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. Cathode marked by bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; requires 1 cm² copper pad for rated 830 mW dissipation |
| 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 operation | Specified at 50 µA - enables use in nanoamp-bias circuits without compromising regulation accuracy |
| Optimized leakage profile | Intentional minor IR rise per AN90031 - reduces switching transients and broadband noise in dynamic biasing |
| Thermal resistance control | Rth(j-sp) = 70 K/W to cathode solder point - supports thermal-aware layout with localized heatsinking |
| Compact SMD footprint | SOD123F outline with 0.55–0.70 mm lead pitch - fits high-density PCBs where space is constrained |
Applications
| Portable Sensor Biasing | Low-Power Reference Generator |
|---|---|
Use Scenario: Providing stable 36 V bias to MEMS pressure sensor front-end in battery-operated environmental monitor. IC Role / Device Role / Timing Role: Zener diode acting as shunt voltage reference for op-amp excitation circuit. Use Value: 0.05 µA reverse current preserves multi-year battery life; ±5 % VZ tolerance ensures consistent sensor gain calibration across units. |
Use Scenario: Generating precision 36 V reference for ADC input scaling in handheld multimeter. IC Role / Device Role / Timing Role: Passive voltage reference element in resistive divider network feeding SAR ADC reference pin. Use Value: 350 Ω rdiff limits reference error to <0.1 % under 10 µA load variation; 45 pF capacitance avoids high-frequency sampling artifacts. |
| USB-C Power Negotiation Clamp | Industrial PLC Input Protection |
Use Scenario: Clamping CC line voltage during USB-C PD negotiation to prevent overvoltage damage to controller IC. IC Role / Device Role / Timing Role: Transient voltage suppressor operating in Zener breakdown mode during fault events. Use Value: 830 mW Ptot rating handles short-duration 36 V surges; fast leakage response per AN90031 reduces glitch duration. |
Use Scenario: Protecting 24 V digital input channel in DIN-rail mounted PLC against field-wiring induced transients. IC Role / Device Role / Timing Role: Shunt regulator limiting input voltage to safe level for optocoupler driver stage. Use Value: +0.05 mV/K temperature coefficient maintains clamp threshold within ±0.3 V over −40 to +85 °C operating range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZT52-C36 | Same VZ range but ±5 % tolerance, no intentional leakage optimization; rdiff = 400 Ω @ 5 mA | Lacks AN90031 noise-reduction tuning; higher differential resistance increases load regulation error | Select when cost sensitivity outweighs noise or switching-speed requirements |
| MMSZ5245B | 36 V nominal, ±5 %, but rated for 500 mW only; rdiff = 500 Ω; no documented leakage optimization | Lower power rating restricts use to sub-100 µA bias currents; unsuitable for 830 mW thermal profiles | Choose only for legacy designs with existing MMSZ52 footprint and derated power |
Compared with BZT52-C36 and MMSZ5245B, the BZT5250H-C36X delivers superior thermal capability (830 mW vs. 500 mW), lower rdiff, and engineered leakage behavior - making it the preferred choice for new designs demanding low-noise, high-stability regulation in space- and power-constrained systems.
Availability
BZT5250H-C36X is available at Aetrix Electronics and suitable for portable sensor biasing, low-power reference generation, USB-C power negotiation clamping, and industrial PLC input protection requiring stable component supply across extended production cycles.
Supply support for BZT5250H-C36X 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 energy-efficient components.
The BZT5250H series belongs to Nexperia's low-current Zener portfolio, engineered specifically for battery-powered and thermally constrained applications where regulation stability at microamp bias levels is essential.
FAQ
What is the maximum continuous power dissipation for BZT5250H-C36X?
The BZT5250H-C36X has a maximum total power dissipation of 830 mW when mounted on an FR4 PCB with a 1 cm² cathode pad at ambient temperatures ≤25 °C. Derating is required above 25 °C per the thermal resistance of 150 K/W to that pad configuration.
Does BZT5250H-C36X meet RoHS and REACH requirements?
Yes, the BZT5250H-C36X complies with EU RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006, as confirmed in Nexperia's official product declarations and material content reports dated July 2024.
Can BZT5250H-C36X be used in place of BZT52-C36 in existing designs?
Yes, BZT5250H-C36X is pin-compatible and electrically interchangeable with BZT52-C36 in SOD123F footprint, offering identical VZ and tolerance while improving thermal margin (830 mW vs. 500 mW) and reducing differential resistance (350 Ω vs. 400 Ω).
What is the significance of the "H" suffix in BZT5250H-C36X?
The "H" denotes the high-reliability, low-current Zener variant within the BZT5250 series - characterized by tighter process control for microamp-level test current specification, intentional leakage tuning per AN90031, and enhanced thermal performance on standard PCB layouts.
BZT5250H-C36X 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):
- 36 V
- Tolerance:
- ±5%
- Power - Max:
- 375 mW
- Impedance (Max) (Zzt):
- 90 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 27.3 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-C36X FAQ
1.How can I place an order for BZT5250H-C36X through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT5250H-C36X 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-C36X reliable?
The price and inventory of BZT5250H-C36X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT5250H-C36X is usually 5 days.
3.What payment methods are accepted for BZT5250H-C36X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT5250H-C36X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT5250H-C36X?
BZT5250H-C36X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT5250H-C36X 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-C36X?
For technical support, including BZT5250H-C36X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT5250H-C36X requirements.
6.How does Aetrix verify that BZT5250H-C36X is sourced from the original manufacturer or authorized distributors?
All BZT5250H-C36X 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-C36X meets industry standards.
7.What is the process for return or replacement of BZT5250H-C36X?
All BZT5250H-C36X units undergo pre-shipment inspection (PSI). If there is an issue with BZT5250H-C36X, 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-C36X part is unused and in its original packaging.
Return procedure for BZT5250H-C36X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZT5250H-C36X Tags
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MM5Z5V1ST1G
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