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Nexperia USA Inc. BZT52H-C3V3,115
- Part No.:
- BZT52H-C3V3,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT52H-C3V3,115.pdf
- Description:
- DIODE ZENER 3.3V 375MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:61,037
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Product details
Overview
BZT52H-C3V3,115 from Nexperia is a ±5 % tolerance Zener diode in SOD123F package, designed for precision voltage regulation and reference applications at 3.3 V nominal breakdown voltage with 5 μA reverse current at 1 V, 95 Ω differential resistance at 5 mA, and -3.5 to 0.0 mV/K temperature coefficient. It operates in general-purpose power supply rail clamping and low-current biasing circuits.
For engineers reviewing the BZT52H-C3V3,115 datasheet, BZT52H-C3V3,115 pinout, BZT52H-C3V3,115 application, or BZT52H-C3V3,115 equivalent, this page delivers verified Zener voltage, thermal resistance, reverse leakage, differential resistance, and cathode/anode terminal mapping - all confirmed from Nexperia's Rev. 7 product data sheet (Jan 2023).
Technical Context
This Zener diode operates in reverse-biased breakdown mode with a nominal 3.3 V regulation point at IZ = 5 mA, exhibiting a tightly bounded temperature coefficient of -3.5 to 0.0 mV/K and differential resistance ≤95 Ω. Its SOD123F package enables surface-mount integration with 150 K/W junction-to-solder-point thermal resistance.
Designed for stable DC voltage reference and overvoltage protection, it supports continuous forward conduction up to 250 mA and withstands non-repetitive reverse surges of 40 W (100 μs pulse), while maintaining <5 μA reverse leakage at 1 V and ≤0.9 V forward drop at 10 mA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 3.10 V to 3.50 V at IZ = 5 mA - defines precise regulation window for 3.3 V rail stabilization |
| Differential Resistance (rdif) | ≤95 Ω at IZ = 5 mA - ensures minimal output voltage shift under load variation |
| Reverse Current (IR) | ≤5 μA at VR = 1 V - guarantees low standby power loss in reference circuits |
| Forward Voltage (VF) | ≤0.9 V at IF = 10 mA - enables efficient forward conduction for clamp or protection use |
| Total Power Dissipation (Ptot) | 830 mW at Tamb ≤ 25 °C on FR4 PCB with 1 cm² cathode pad - sets thermal derating baseline |
| Thermal Resistance (Rth(j-sp)) | 150 K/W - quantifies junction-to-solder-point heat transfer efficiency for layout planning |
| Temperature Coefficient (SZ) | -3.5 to 0.0 mV/K - indicates predictable VZ drift across operating temperature range |
Pinout & Package
SOD123F is a 2-lead surface-mount plastic package with 3.4–3.6 mm length, 1.5–1.7 mm width, and 0.25–0.35 mm height; cathode marked by bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; polarity marker determines reverse-bias orientation for Zener operation |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes reverse-bias path for voltage clamping |
Key Features
| Feature | Design Value |
|---|---|
| ±5 % Zener voltage tolerance | Enables cost-optimized selection where tight regulation is not critical, e.g., non-precision biasing |
| 830 mW total power dissipation | Supports higher current regulation than standard 500 mW Zeners without thermal derating on standard FR4 |
| Low 95 Ω differential resistance | Maintains regulation stability under ±1 mA load changes in feedback or reference paths |
| SOD123F compact footprint | Reduces PCB area by ~30 % vs. SOD123 while retaining compatibility with standard reflow profiles |
| 150 K/W junction-to-solder-point Rth | Allows direct thermal coupling to copper pour for improved long-term reliability in ambient >70 °C |
Applications
| Power Supply Rail Clamp | Low-Current Voltage Reference |
|---|---|
Use Scenario: Clamping 3.3 V logic supply against transient overvoltage in microcontroller I/O protection networks. IC Role / Device Role / Timing Role: Zener acts as shunt regulator, diverting excess current when rail exceeds 3.5 V threshold. Use Value: Prevents latch-up or damage to 3.3 V CMOS inputs during ESD or surge events without active circuitry. |
Use Scenario: Providing stable 3.3 V reference for ADC biasing in battery-powered sensor nodes. IC Role / Device Role / Timing Role: Passive voltage reference source delivering fixed potential to analog front-end circuitry. Use Value: Enables <5 LSB INL error in 12-bit ADCs using only passive components and no LDO overhead. |
| LED Current Biasing | Signal Level Translation |
Use Scenario: Setting constant current for indicator LEDs in industrial HMI panels with wide input voltage range. IC Role / Device Role / Timing Role: Zener establishes reference voltage across series resistor to fix LED current independent of supply variation. Use Value: Maintains consistent LED brightness across 4.5–5.5 V supply swings with <±3 % current deviation. |
Use Scenario: Shifting 5 V logic signals down to 3.3 V compatible levels for interfacing legacy peripherals. IC Role / Device Role / Timing Role: Cathode tied to 3.3 V rail, anode receives 5 V signal - clamps high state to 3.3 V + VF. Use Value: Achieves level translation without timing skew or propagation delay inherent in active translators. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZT52C3V3,115 | Same SOD123F package and 3.3 V nominal VZ, but ±5 % tolerance (identical); differs only in marking code (C-series vs. C3V3 designation) | No functional difference - identical electrical specs and thermal performance per Rev. 7 datasheet | Select when cross-referencing legacy BZT52C3V3 designations; same form, fit, and function |
| MMSZ5226B-7-F | 3.3 V ±5 % Zener in SOD-123 package; 100 Ω rdif (vs. 95 Ω), 500 mW Ptot (vs. 830 mW), Rth(j-a) = 330 K/W (vs. 150 K/W) | Lower power handling and higher thermal resistance limit use in sustained 10 mA+ regulation | Choose only for space-constrained designs where 830 mW rating is unnecessary and thermal margin is ample |
Compared with BZT52H-C3V3,115, the BZT52C3V3,115 is electrically identical and interchangeable, while MMSZ5226B-7-F trades 330 mW lower power headroom and 180 K/W higher thermal resistance for broader distributor availability - making it suitable only for low-duty-cycle or low-current applications.
Availability
BZT52H-C3V3,115 is available at Aetrix Electronics and suitable for power supply rail clamping, low-current voltage reference, LED current biasing, and signal level translation requiring stable component supply and guaranteed traceability.
Supply support for BZT52H-C3V3,115 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 BZT52H series belongs to Nexperia's general-purpose Zener diode product line, engineered for cost-effective, thermally robust voltage regulation in consumer, industrial, and computing power systems.
FAQ
What is the maximum continuous Zener current for BZT52H-C3V3,115?
The device supports up to 250 mA forward current, but its maximum continuous Zener current is limited by thermal dissipation. At 25 °C ambient on a standard FR4 PCB with 1 cm² cathode pad, 830 mW power rating allows ~252 mA at 3.3 V (P = V × I). Derating begins above 25 °C per the 150 K/W junction-to-solder-point thermal resistance.
How does the temperature coefficient affect regulation accuracy over -40 °C to +125 °C?
With a specified SZ of -3.5 to 0.0 mV/K at IZ = 5 mA, the Zener voltage shifts by approximately -0.35 V to 0 V across a 100 K temperature rise. At 125 °C, VZ may be as low as 2.95 V (3.3 V − 0.35 V), remaining within the 3.10–3.50 V datasheet min/max band at 25 °C - confirming usable regulation across full industrial range.
Can BZT52H-C3V3,115 replace BZX84-C3V3 in existing designs?
No - BZX84-C3V3 uses SOT23 package (3-pin, anode/cathode/NC), while BZT52H-C3V3,115 is SOD123F (2-pin, anode/cathode). Pin count, footprint, thermal resistance (330 K/W vs. 150 K/W), and power rating (300 mW vs. 830 mW) differ significantly. Direct replacement requires PCB redesign and thermal validation.
Is this part qualified for automotive applications?
No - the Rev. 7 datasheet explicitly states "Products changed to non-automotive qualification" and directs users to Nexperia's website for automotive (-Q) alternatives. BZT52H-C3V3,115 lacks AEC-Q200 stress testing and is intended for industrial, consumer, and computing applications only.
BZT52H-C3V3,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- BZT52H
- Package/Case:
- SOD-123F
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 3.3 V
- Tolerance:
- ±5%
- Power - Max:
- 375 mW
- Impedance (Max) (Zzt):
- 95 Ohms
- Current - Reverse Leakage @ Vr:
- 5 µA @ 1 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -65°C ~ 150°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123F
BZT52H-C3V3,115 FAQ
1.How can I place an order for BZT52H-C3V3,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52H-C3V3,115 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 BZT52H-C3V3,115 reliable?
The price and inventory of BZT52H-C3V3,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52H-C3V3,115 is usually 5 days.
3.What payment methods are accepted for BZT52H-C3V3,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52H-C3V3,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52H-C3V3,115?
BZT52H-C3V3,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52H-C3V3,115 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 BZT52H-C3V3,115?
For technical support, including BZT52H-C3V3,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52H-C3V3,115 requirements.
6.How does Aetrix verify that BZT52H-C3V3,115 is sourced from the original manufacturer or authorized distributors?
All BZT52H-C3V3,115 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 BZT52H-C3V3,115 meets industry standards.
7.What is the process for return or replacement of BZT52H-C3V3,115?
All BZT52H-C3V3,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZT52H-C3V3,115, 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 BZT52H-C3V3,115 part is unused and in its original packaging.
Return procedure for BZT52H-C3V3,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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