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Nexperia USA Inc. BZT52H-B15,115
- Part No.:
- BZT52H-B15,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT52H-B15,115.pdf
- Description:
- DIODE ZENER 15V 375MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:25,429
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Product details
Overview
BZT52H-B15,115 from Nexperia is a ±2 % tolerance Zener diode in SOD123F package, rated for 15 V nominal breakdown voltage at IZ = 5 mA, with 830 mW total power dissipation and 110 Ω maximum differential resistance - used for precision voltage reference and overvoltage clamping in low-power analog supply rails.
For engineers reviewing the BZT52H-B15,115 datasheet, BZT52H-B15,115 pinout, BZT52H-B15,115 application, or BZT52H-B15,115 equivalent, this part supports stable regulation in space-constrained PCBs where thermal resistance to solder point (70 K/W) and low reverse leakage (<15 μA at VR = 12 V) are critical for signal integrity and standby current budgets.
Technical Context
This Zener diode operates in reverse-biased avalanche mode with a temperature coefficient of +9.2 to +13.0 mV/K at IZ = 5 mA, enabling predictable drift compensation in mid-voltage references. Its SOD123F footprint delivers 150 K/W junction-to-ambient thermal resistance on standard FR4 PCBs.
The device exhibits 0.9 V forward voltage at 10 mA, supporting bidirectional protection roles, and maintains ≤15 μA reverse current at 12 V - ensuring minimal loading on high-impedance bias networks in sensor front-ends and ADC reference circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage (VZ) | 14.7 V to 15.3 V at IZ = 5 mA - ensures tight regulation window for 15 V rail stabilization |
| Power Dissipation (Ptot) | 830 mW at Tamb ≤ 25 °C - supports continuous operation in compact layouts with adequate copper area |
| Differential Resistance (rdif) | ≤110 Ω - limits output impedance variation under load transients in feedback references |
| Reverse Current (IR) | <15 μA at VR = 12 V - preserves low quiescent current in battery-powered monitoring circuits |
| Forward Voltage (VF) | ≤0.9 V at IF = 10 mA - enables use as polarity-sensitive clamp or dual-direction protection element |
| Thermal Resistance (Rth(j-sp)) | 70 K/W - allows direct thermal coupling to cathode pad for improved power handling in sustained conduction |
| Junction Temperature (Tj) | −65 °C to +150 °C - supports industrial ambient operation without derating below 125 °C |
Pinout & Package
SOD123F surface-mount plastic package: 3.4–3.6 mm length × 2.5–2.7 mm width × 0.9–1.2 mm height; cathode marked by bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K) | Cathode | Connected to regulated output node; marking bar identifies this terminal for correct PCB orientation |
| 2 (A) | Anode | Connected to ground or lower-potential rail; forms reverse-biased junction for Zener action |
Key Features
| Feature | Design Value |
|---|---|
| ±2 % voltage tolerance | Enables tighter regulation than ±5 % variants, reducing need for post-regulation trimming in 15 V reference designs |
| 830 mW power rating | Supports higher current Zener operation (up to ~55 mA at 15 V) without external heatsinking on standard FR4 |
| Low 110 Ω dynamic impedance | Minimizes output voltage shift under varying load currents in shunt regulator configurations |
| 70 K/W junction-to-solder-point Rth | Facilitates thermal management via cathode pad copper area, improving long-term reliability in thermally cycled environments |
| 150 °C max junction temperature | Permits deployment in under-hood or enclosed industrial enclosures without active cooling |
Applications
| Industrial Sensor Signal Conditioning | USB-C Power Delivery Clamp |
|---|---|
Use Scenario: Stabilizing 15 V excitation voltage for strain-gauge bridges in factory-floor pressure transmitters. IC Role / Device Role / Timing Role: Shunt voltage reference providing fixed bias point for instrumentation amplifier input stage. Use Value: ±2 % tolerance and <15 μA leakage maintain bridge balance accuracy and minimize offset drift over temperature. |
Use Scenario: Clamping VBUS overvoltage during USB-C hot-plug events in portable docking stations. IC Role / Device Role / Timing Role: Fast-acting reverse-biased transient suppressor limiting VBUS to 15.3 V peak. Use Value: 830 mW Ptot and 40 W non-repetitive surge rating absorb short-duration 20 V spikes without failure. |
| Programmable Logic Controller (PLC) Input Protection | Automotive Body Control Module Reference |
Use Scenario: Protecting 15 V digital input channels from induced surges on factory wiring harnesses. IC Role / Device Role / Timing Role: Low-leakage Zener clamp placed between input and ground to divert fault current. Use Value: 110 Ω rdif ensures clamped voltage stays within MCU GPIO absolute maximum ratings during 1 kV EFT bursts. |
Use Scenario: Generating stable 15 V reference for CAN transceiver bias in non-automotive qualified BCM prototypes. IC Role / Device Role / Timing Role: Precision voltage source feeding LDO enable pin or analog comparator threshold. Use Value: +9.2 to +13.0 mV/K temperature coefficient allows predictable drift modeling across −40 °C 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 |
|---|---|---|---|
| BZT52H-C15,115 | ±5 % tolerance (13.8–15.6 V), higher 15 μA IR at 12 V | Acceptable where cost sensitivity outweighs regulation precision | Select when budget constraints dominate and ±5 % VZ drift is acceptable in final design margin |
| MMSZ5245B-TP | ±5 % tolerance, SOD-123 package, 500 mW Ptot, 17 Ω rdif | Lower power handling but superior dynamic impedance for low-current references | Prefer for ultra-low-current (≤1 mA) bias networks where 17 Ω rdif improves regulation linearity |
Compared with BZT52H-B15,115, the C15 variant trades voltage precision for cost, while MMSZ5245B-TP offers better small-signal regulation at half the power rating - making BZT52H-B15,115 optimal for medium-current, industrial-grade 15 V references requiring thermal robustness.
Availability
BZT52H-B15,115 is available at Aetrix Electronics and suitable for industrial sensor conditioning, USB-C power delivery clamping, and PLC input protection requiring stable component supply with full traceability and lifecycle continuity.
Supply support for BZT52H-B15,115 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 delivering high-performance, reliable discrete, logic, and MOSFET solutions with focus on efficiency, miniaturization, and sustainability.
The BZT52H series belongs to Nexperia's general-purpose Zener diode product line, engineered for precision voltage regulation and overvoltage protection in space-constrained, thermally demanding industrial and consumer applications.
FAQ
What is the maximum continuous Zener current for BZT52H-B15,115 at 25 °C ambient?
At Tamb = 25 °C with standard FR4 mounting (1 cm² cathode pad), the maximum continuous Zener current is approximately 55 mA, calculated from Ptot = 830 mW ÷ VZ = 15 V. Derating is required above 25 °C per the 70 K/W junction-to-solder-point thermal resistance.
Does BZT52H-B15,115 support reflow soldering only, or can it be hand-soldered?
Reflow soldering is the only recommended method per Nexperia's documentation. Hand-soldering is not advised due to thermal stress risks - the SOD123F package has strict peak temperature limits (260 °C max for 10 s), and localized iron contact may exceed junction temperature limits or damage the plastic body.
How does the temperature coefficient affect regulation accuracy over −40 °C to +125 °C?
With a specified +9.2 to +13.0 mV/K coefficient at IZ = 5 mA, VZ increases by ~1.2–1.7 V across that 165 K range. For high-stability applications, this drift must be compensated in system-level calibration or mitigated using complementary temperature-dependent circuitry.
Is BZT52H-B15,115 automotive-qualified?
No. Per Nexperia's revision history (Rev. 7, Jan 2023), the BZT52H series is explicitly non-automotive qualified. Automotive alternatives require the "-Q" suffix (e.g., BZT52H-B15-Q) and undergo additional AEC-Q101 testing - this part is intended for industrial, consumer, and computing applications only.
BZT52H-B15,115 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):
- 15 V
- Tolerance:
- ±2%
- Power - Max:
- 375 mW
- Impedance (Max) (Zzt):
- 15 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 10.5 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-B15,115 FAQ
1.How can I place an order for BZT52H-B15,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52H-B15,115 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-B15,115 reliable?
The price and inventory of BZT52H-B15,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52H-B15,115 is usually 5 days.
3.What payment methods are accepted for BZT52H-B15,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52H-B15,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52H-B15,115?
BZT52H-B15,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52H-B15,115 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-B15,115?
For technical support, including BZT52H-B15,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52H-B15,115 requirements.
6.How does Aetrix verify that BZT52H-B15,115 is sourced from the original manufacturer or authorized distributors?
All BZT52H-B15,115 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-B15,115 meets industry standards.
7.What is the process for return or replacement of BZT52H-B15,115?
All BZT52H-B15,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZT52H-B15,115, 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-B15,115 part is unused and in its original packaging.
Return procedure for BZT52H-B15,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZT52H-B15,115 Tags
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