My Inquiry
My Account
Nexperia USA Inc. BZT52H-B4V3,115
- Part No.:
- BZT52H-B4V3,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT52H-B4V3,115.pdf
- Description:
- DIODE ZENER 4.3V 375MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:4,926
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BZT52H-B4V3,115 from Nexperia is a ±2 % tolerance Zener diode in SOD123F package, rated for 4.3 V nominal breakdown voltage at 5 mA, 830 mW total power dissipation, and 150 °C maximum junction temperature-used for precision voltage reference and overvoltage clamping in low-power analog signal conditioning circuits.
For engineers reviewing the BZT52H-B4V3,115 datasheet, BZT52H-B4V3,115 pinout, BZT52H-B4V3,115 application, or BZT52H-B4V3,115 equivalent, this page delivers verified Zener parameters, thermal resistance (Rth(j-a) = 330 K/W), differential resistance (95 Ω max), reverse current (3 μA max at 1 V), and cathode/anode terminal mapping per official Nexperia Rev. 7 specification.
Technical Context
This Zener diode operates in reverse-bias breakdown mode with a tightly controlled 4.3 V regulation point at IZ = 5 mA, exhibiting a temperature coefficient of −3.5 to 0.0 mV/K across its operating range. Its low 95 Ω typical differential resistance ensures stable output under varying load currents.
Designed for surface-mount use on FR4 PCBs with single-sided copper, it supports pulsed surge handling up to 40 W (100 μs) and maintains thermal integrity via Rth(j-sp) = 150 K/W to solder point-critical for reliability in compact power-supply feedback paths and ESD protection networks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VZ | 4.21 V to 4.39 V at IZ = 5 mA - defines precise clamping threshold for 3.3 V/5 V rail monitoring |
| Tolerance | ±2 % - enables tighter regulation than ±5 % variants in feedback loops requiring <1% error budget |
| Differential Resistance rdif | ≤ 95 Ω - minimizes output voltage shift under dynamic load changes in reference circuits |
| Reverse Current IR | ≤ 3 μA at VR = 1 V - ensures low leakage in high-impedance bias networks |
| Total Power Dissipation Ptot | 830 mW at Tamb ≤ 25 °C - supports continuous operation in thermally constrained SMT layouts |
| Junction Temperature Tj | −65 °C to +150 °C - qualifies for industrial ambient environments without derating below 85 °C |
| Forward Voltage VF | ≤ 0.9 V at IF = 10 mA - allows use as polarity-sensitive clamp in bidirectional protection schemes |
Pinout & Package
The BZT52H-B4V3,115 is housed in a SOD123F plastic surface-mount package (3.6 mm × 2.7 mm × 1.2 mm), featuring flat leads optimized for reflow soldering on FR4 PCBs with standard footprint per Figure 12.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; marking bar identifies this terminal for correct orientation during placement |
| 2 | Anode (A) | Ground or lower-potential reference point; reverse-bias connection establishes Zener conduction path |
Key Features
| Feature | Design Value |
|---|---|
| Power rating | 830 mW at 25 °C ambient - enables higher current regulation than 500 mW SOD-123 variants without thermal runaway |
| Voltage tolerance | ±2 % - reduces binning overhead and improves yield in precision voltage monitor designs |
| Thermal resistance | Rth(j-a) = 330 K/W - allows direct thermal modeling for PCB layout optimization in space-constrained modules |
| Surge capability | IZSM = 6.0 A (100 μs pulse) - provides robust transient suppression in I/O line protection applications |
| Capacitance | Cd = 450 pF at f = 1 MHz - limits high-frequency noise coupling in RF-adjacent analog sections |
Applications
| Power Supply Feedback Reference | Microcontroller I/O Clamp |
|---|---|
|
Use Scenario: Stabilizing feedback voltage in adjustable DC-DC converter ICs (e.g., TLV62568) where output accuracy depends on reference stability. IC Role / Device Role / Timing Role: Zener diode acts as shunt voltage reference, sinking excess current to maintain fixed VREF at error amplifier input. Use Value: ±2 % tolerance and 95 Ω rdif limit output drift to <±12 mV across 0–100 mA load steps-meeting Class II regulation requirements. |
Use Scenario: Protecting 3.3 V GPIO pins against ESD and overvoltage transients from external sensors or connectors. IC Role / Device Role / Timing Role: Bidirectional clamping device, conducting reverse current above 4.3 V and forward current above 0.9 V to limit pin excursion. Use Value: 6.0 A non-repetitive surge rating absorbs IEC 61000-4-2 Level 4 (8 kV contact) events without degradation. |
| Low-Power Sensor Biasing | ADC Reference Stabilization |
|
Use Scenario: Providing stable excitation voltage to resistive temperature detectors (RTDs) in battery-powered environmental monitors. IC Role / Device Role / Timing Role: Precision shunt regulator establishing 4.3 V bias across sensor bridge, independent of supply variation. Use Value: 3 μA max reverse leakage at 1 V ensures <10 nA error contribution in 100 kΩ bridge arms-preserving 16-bit measurement resolution. |
Use Scenario: Decoupling reference input of SAR ADCs (e.g., ADS7953) from digital noise coupling on shared VDD rails. IC Role / Device Role / Timing Role: Low-noise voltage clamp filtering high-frequency switching noise while maintaining DC reference level. Use Value: 450 pF capacitance forms effective RC filter with 100 Ω series resistor, attenuating >10 MHz noise by >40 dB before ADC REF pin. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZT52C4V3,115 | ±5 % tolerance, 4.1 V–4.5 V range, 95 Ω rdif, same SOD123F package | Higher initial tolerance increases calibration burden in closed-loop feedback; acceptable for non-critical biasing | Select when cost sensitivity outweighs regulation precision; verify system-level error budget permits ±5 % drift |
| MMSZ4V3T1G | ±5 % tolerance, 4.08–4.52 V range, 90 Ω rdif, SOD-123 package (slightly larger footprint) | Higher thermal resistance (Rth(j-a) ≈ 400 K/W) reduces power handling at elevated ambient temperatures | Choose only if legacy design uses ON Semiconductor footprint; confirm PCB pad revision accommodates 3.7 mm length |
Compared with BZT52H-B4V3,115, the ±2 % BZT52C4V3,115 trades tighter regulation for lower unit cost, while MMSZ4V3T1G offers comparable rdif but requires thermal derating above 60 °C ambient due to inferior package thermal performance.
Availability
BZT52H-B4V3,115 is available at Aetrix Electronics and suitable for voltage reference, I/O protection, and sensor biasing applications requiring stable component supply across industrial control, test equipment, and IoT endpoint designs.
Supply support for BZT52H-B4V3,115 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 logic, discrete, and MOSFET solutions, headquartered in Nijmegen, Netherlands.
The BZT52H series belongs to Nexperia's general-purpose Zener diode product line, engineered specifically for stable voltage regulation and transient suppression in cost-sensitive, space-constrained SMT applications across consumer, industrial, and computing markets.
FAQ
What is the maximum continuous reverse current the BZT52H-B4V3,115 can sustain?
The device does not specify a maximum continuous reverse current rating; instead, its safe operating area is defined by power dissipation limits. At 25 °C ambient, it sustains up to 193 mA (830 mW ÷ 4.3 V) continuously in regulation, decreasing linearly with rising junction temperature per the 150 °C Tj limit and 330 K/W thermal resistance.
Can BZT52H-B4V3,115 be used in place of a 3.3 V Zener diode?
No-it is a 4.3 V nominal Zener and will not regulate at 3.3 V. Attempting to force 3.3 V operation results in insufficient reverse bias, causing high leakage (>100 μA) and unstable clamping. For 3.3 V regulation, use BZT52H-B3V3,115 (3.23–3.37 V range) or equivalent.
How does the SOD123F package differ from standard SOD-123 in thermal performance?
SOD123F features a flatter lead profile and optimized internal thermal path, achieving Rth(j-sp) = 150 K/W versus ~180 K/W for standard SOD-123. This 17 % improvement enhances power handling in reflow-soldered layouts, especially when cathode pad area is limited to 1 cm² per datasheet condition [3].
Is BZT52H-B4V3,115 automotive-qualified?
No-per Nexperia Revision History (Rev. 7), the BZT52H series is explicitly designated as non-automotive qualified. It lacks AEC-Q200 stress testing and automotive-grade process controls. For automotive applications, select Nexperia's BZT52H-Q series (e.g., BZT52H-QB4V3,115) with full qualification documentation.
BZT52H-B4V3,115 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):
- 4.3 V
- Tolerance:
- ±2%
- Power - Max:
- 375 mW
- Impedance (Max) (Zzt):
- 95 Ohms
- Current - Reverse Leakage @ Vr:
- 3 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-B4V3,115 FAQ
1.How can I place an order for BZT52H-B4V3,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52H-B4V3,115 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-B4V3,115 reliable?
The price and inventory of BZT52H-B4V3,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52H-B4V3,115 is usually 5 days.
3.What payment methods are accepted for BZT52H-B4V3,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52H-B4V3,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52H-B4V3,115?
BZT52H-B4V3,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52H-B4V3,115 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-B4V3,115?
For technical support, including BZT52H-B4V3,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52H-B4V3,115 requirements.
6.How does Aetrix verify that BZT52H-B4V3,115 is sourced from the original manufacturer or authorized distributors?
All BZT52H-B4V3,115 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-B4V3,115 meets industry standards.
7.What is the process for return or replacement of BZT52H-B4V3,115?
All BZT52H-B4V3,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZT52H-B4V3,115, 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-B4V3,115 part is unused and in its original packaging.
Return procedure for BZT52H-B4V3,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZT52H-B4V3,115 Tags
-
MMBZ5240B-7-F
Diodes Incorporated
-
BZT52C5V6T-7
Diodes Incorporated
-
MMSZ5231B-7-F
Diodes Incorporated
-
BZT52C15-7-F
Diodes Incorporated
-
BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
-
MMSZ4682T1G
onsemi
-
BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
-
SMAJ4744A-TP
Micro Commercial Co
-
BZT52C3V6LP-7
Diodes Incorporated
-
SMAZ12-13-F
Diodes Incorporated
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
