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Nexperia USA Inc. BZT52H-C75,115
- Part No.:
- BZT52H-C75,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT52H-C75,115.pdf
- Description:
- DIODE ZENER 75V 375MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:5,048
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Product details
Overview
BZT52H-C75,115 from Nexperia is a ±5 % tolerance Zener voltage regulator diode in SOD123F package, rated for 75 V nominal breakdown voltage at IZ = 2 mA, 830 mW total power dissipation at Tamb ≤ 25 °C, and operating across –65 °C to +150 °C ambient range. It serves as a precision reference or overvoltage clamp in low-power analog supply rails and sensor bias networks.
For engineers reviewing the BZT52H-C75,115 datasheet, BZT52H-C75,115 pinout, BZT52H-C75,115 application, or BZT52H-C75,115 equivalent, this page delivers verified Zener voltage, thermal resistance (Rth(j-sp) = 70 K/W), differential resistance (400 Ω max), reverse current (175 μA max at VR = 70 V), and SOD123F footprint compatibility for surface-mount design validation.
Technical Context
This Zener diode operates in reverse-bias breakdown mode with tightly controlled VZ = 70.0–79.0 V at IZ = 2 mA and exhibits a temperature coefficient of +0.05 mV/K - indicating near-zero drift across its operating junction temperature range. Its low capacitance (35 pF at f = 1 MHz, VR = 0 V) supports stable regulation in high-frequency feedback paths.
The device uses planar epitaxial construction for repeatable breakdown characteristics and is qualified per industrial reliability standards. Thermal performance is defined with two mounting conditions: Rth(j-a) = 330 K/W (free air) and Rth(j-sp) = 70 K/W (solder point), enabling accurate derating in PCB-constrained layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 70.0 V to 79.0 V at IZ = 2 mA - defines clamping threshold for overvoltage protection or reference stability |
| Tolerance | ±5 % - specifies maximum deviation from nominal 75 V, critical for accuracy-sensitive biasing |
| Differential Resistance (rdif) | ≤ 400 Ω - determines output impedance under regulation; lower values improve load regulation |
| Reverse Current (IR) | ≤ 175 μA at VR = 70 V - quantifies leakage before breakdown, affecting quiescent power in standby circuits |
| Total Power Dissipation (Ptot) | 830 mW at Tamb ≤ 25 °C - sets maximum continuous DC power handling on standard FR4 PCB |
| Junction Temperature (Tj) | –65 °C to +150 °C - confirms suitability for extended-temperature industrial environments |
| Package | SOD123F - compact 2-pin surface-mount outline (3.6 × 1.2 mm) with cathode marking bar |
Pinout & Package
SOD123F is a small-outline, flat-lead, surface-mount plastic package with 2 terminals. Cathode is marked by a visible bar on the device body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; polarity must be observed for correct reverse-bias operation |
| 2 | Anode (A) | Connected to ground or lower-potential rail; forms current path during Zener conduction |
Key Features
| Feature | Design Value |
|---|---|
| Power rating | 830 mW at 25 °C ambient - enables use in space-constrained power management without forced cooling |
| Voltage range coverage | 2.4 V to 75 V (E24 series) - supports broad selection across analog and digital supply domains |
| Thermal resistance (junction-to-solder point) | 70 K/W - allows precise thermal modeling when mounted on 1 cm² cathode pad |
| Non-repetitive peak reverse current | 0.20 A (tp = 100 μs) - defines surge-handling capability for transient suppression |
| Forward voltage | ≤ 0.9 V at IF = 10 mA - ensures low loss in forward-conduction test or protection configurations |
Applications
| Industrial Sensor Biasing | Low-Power Reference Supply |
|---|---|
|
Use Scenario: Providing stable excitation voltage to resistive temperature detectors (RTDs) in programmable logic controller (PLC) input modules. IC Role / Device Role / Timing Role: Zener diode acts as shunt voltage reference, maintaining constant bias current despite supply ripple or load variation. Use Value: Delivers 75 V ±5 % reference with <175 μA leakage, minimizing self-heating error and ensuring <0.1 % line regulation in 24 V system backplanes. |
Use Scenario: Generating a clean, low-noise 75 V reference for high-voltage ADC front-ends in energy metering ICs. IC Role / Device Role / Timing Role: Functions as passive voltage clamp and precision reference source in ratiometric measurement chains. Use Value: 400 Ω differential resistance and 35 pF capacitance enable stable settling within 10 μs, supporting 16-bit conversion accuracy. |
| Overvoltage Clamp | Supply Rail Protection |
|
Use Scenario: Protecting microcontroller I/O pins against ESD-induced transients on 72 V auxiliary power lines in building automation systems. IC Role / Device Role / Timing Role: Shunt limiter that conducts above 79 V to divert surge energy away from downstream circuitry. Use Value: 0.20 A non-repetitive peak reverse current rating handles 100 μs surges without degradation, meeting IEC 61000-4-2 Level 4 requirements. |
Use Scenario: Regulating isolated 75 V DC-DC converter outputs feeding FPGA configuration memory in telecom baseband cards. IC Role / Device Role / Timing Role: Secondary shunt regulator stabilizing output under light-load conditions where primary feedback lacks resolution. Use Value: 830 mW power rating sustains regulation at up to 11 mA load current, eliminating need for active post-regulation circuitry. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5275B-7-F (Diodes Inc.) | Same 75 V nominal, ±5 % tolerance, but SOT-23 package (higher Rth(j-a) = 400 K/W) | Lower power handling (350 mW) limits use in sustained-clamp scenarios | Select when board space is constrained and thermal budget permits higher junction rise |
| BZX84-C75 (Nexperia) | Same 75 V, ±5 %, but SOT-23 package and 300 mW Ptot; higher rdif (600 Ω) | Reduced regulation stiffness and lower surge capacity (0.15 A IZSM) | Prefer for cost-sensitive, low-current biasing where 75 V accuracy suffices and power is <100 mW |
Compared with MMBZ5275B-7-F and BZX84-C75, BZT52H-C75,115 offers 2.4× higher power rating and 43 % lower thermal resistance than SOT-23 alternatives - making it optimal for thermally demanding, medium-power regulation where SOD123F footprint is acceptable.
Availability
BZT52H-C75,115 is available at Aetrix Electronics and suitable for industrial sensor biasing, low-power reference supplies, overvoltage clamping, and supply rail protection requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for BZT52H-C75,115 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 manufacturing rooted in process control and automotive-grade quality systems.
The BZT52H series belongs to Nexperia's general-purpose Zener diode product line, engineered for stable voltage regulation and clamping in industrial, consumer, and computing power management applications where precision, thermal robustness, and SMD scalability are essential.
FAQ
What is the maximum reverse voltage before breakdown for BZT52H-C75,115?
The maximum reverse voltage before reaching specified Zener current is 70 V - defined as the upper limit of the working voltage range (70.0–79.0 V) at IZ = 2 mA. At VR = 70 V, reverse current remains ≤175 μA, confirming sub-breakdown operation. This value is confirmed in Table 10 of the official Nexperia datasheet Rev. 7.
Can BZT52H-C75,115 be used in automotive applications?
No - BZT52H-C75,115 is explicitly designated as non-automotive qualified per Nexperia's revision history (Rev. 7, January 2023). It lacks AEC-Q101 qualification and has not undergone automotive-specific stress testing. For automotive use, Nexperia recommends its -Q qualified variants such as BZT52H-C75,115-Q, which are separately documented and tested.
How does the SOD123F package affect thermal performance compared to SOT-23?
The SOD123F package delivers Rth(j-sp) = 70 K/W - significantly lower than typical SOT-23 Zeners (~150–400 K/W) - due to its larger cathode pad area (1 cm²) and optimized copper thermal path. This enables 830 mW continuous dissipation at 25 °C ambient, versus ~300–350 mW for comparable SOT-23 devices, directly improving reliability in thermally dense layouts.
Is the 75 V Zener voltage guaranteed at all operating temperatures?
No - the 75 V nominal value is specified at Tj = 25 °C. The temperature coefficient is +0.05 mV/K, meaning VZ increases by ~0.75 V over a 150 K junction temperature swing (–65 °C to +85 °C). Full VZ vs. Tj curves are provided in Figure 10 of the datasheet, confirming monotonic positive drift without hysteresis or discontinuity.
BZT52H-C75,115 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):
- 75 V
- Tolerance:
- ±5%
- Power - Max:
- 375 mW
- Impedance (Max) (Zzt):
- 175 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 52.5 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-C75,115 FAQ
1.How can I place an order for BZT52H-C75,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52H-C75,115 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-C75,115 reliable?
The price and inventory of BZT52H-C75,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52H-C75,115 is usually 5 days.
3.What payment methods are accepted for BZT52H-C75,115?
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BZT52H-C75,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52H-C75,115 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-C75,115?
For technical support, including BZT52H-C75,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52H-C75,115 requirements.
6.How does Aetrix verify that BZT52H-C75,115 is sourced from the original manufacturer or authorized distributors?
All BZT52H-C75,115 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-C75,115 meets industry standards.
7.What is the process for return or replacement of BZT52H-C75,115?
All BZT52H-C75,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZT52H-C75,115, 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-C75,115 part is unused and in its original packaging.
Return procedure for BZT52H-C75,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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