My Inquiry
My Account
Nexperia USA Inc. BZT52H-C39,115
- Part No.:
- BZT52H-C39,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT52H-C39,115.pdf
- Description:
- DIODE ZENER 39V 375MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:2,884
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BZT52H-C39,115 from Nexperia is a ±5 % tolerance Zener diode in SOD123F package, rated for 39 V nominal breakdown voltage at IZ = 2 mA, with 300 Ω maximum differential resistance and 75 μA reverse current at VR = 31.2 V, used for precision voltage reference and overvoltage protection in low-power analog circuits.
For engineers reviewing the BZT52H-C39,115 datasheet, BZT52H-C39,115 pinout, BZT52H-C39,115 application, or BZT52H-C39,115 equivalent, this page delivers verified Zener parameters, thermal resistance (Rth(j-sp) = 70 K/W), junction temperature limit (150 °C), and SOD123F mounting details - all confirmed from Nexperia's Rev. 7 product data sheet.
Technical Context
This Zener diode operates in reverse-bias breakdown mode to maintain stable voltage regulation under varying load and temperature conditions. Its ±5 % tolerance and 39 V nominal VZ are specified at IZ = 2 mA, with temperature coefficient of +0.05 mV/K ensuring minimal drift across operating range.
Designed for surface-mount applications, it features low thermal resistance (Rth(j-sp) = 70 K/W) and supports non-repetitive peak reverse power dissipation up to 40 W (tp = 100 μs). Maximum continuous power dissipation is 830 mW at Tamb ≤ 25 °C on FR4 PCB with 1 cm² cathode pad.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VZ (Nominal) | 39 V at IZ = 2 mA - defines primary regulation point for feedback or reference circuits |
| Tolerance | ±5 % - sets absolute voltage window (37.0 V to 41.0 V) for design margining |
| rdif | 300 Ω max - determines output impedance and load regulation error under current variation |
| IR | 75 μA max at VR = 31.2 V - quantifies leakage before breakdown, critical for low-power standby |
| Ptot | 830 mW - maximum steady-state power handling on standard FR4 PCB, defining thermal derating curve |
| Tj max | 150 °C - junction temperature limit governing reliability and lifetime under sustained power |
| Rth(j-sp) | 70 K/W - thermal resistance from junction to solder point, enabling accurate board-level thermal modeling |
Pinout & Package
SOD123F is a small-outline, flat-lead surface-mount plastic package measuring 3.6 mm × 1.7 mm × 1.0 mm (L × W × H), optimized for automated placement and 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 polarity-critical layout |
| 2 | Anode (A) | Connected to ground or lower-potential rail; reverse-bias configuration enables Zener operation |
Key Features
| Feature | Design Value |
|---|---|
| Breakdown voltage range | 2.4 V to 75 V (E24 series) - supports broad selection across analog supply rails and sensing thresholds |
| Power dissipation | 830 mW total - enables use in compact, unheatsinked designs without forced airflow |
| Thermal resistance | 70 K/W (junction-to-solder point) - allows direct thermal coupling to copper pour for improved reliability |
| Reverse leakage control | 75 μA max at 80 % VZ - ensures low quiescent current in battery-powered voltage monitors |
| Package compatibility | SOD123F footprint - matches industry-standard reflow profiles and pick-and-place tooling |
Applications
| Power Supply Reference | Overvoltage Clamp |
|---|---|
Use Scenario: Providing stable 39 V reference for ADC biasing or op-amp feedback in industrial sensor signal conditioning. IC Role / Device Role / Timing Role: Voltage reference element establishing precise DC offset independent of input rail variation. Use Value: ±5 % VZ tolerance and 300 Ω rdif ensure <1 % reference error across 0.5–5 mA load current range. |
Use Scenario: Protecting microcontroller GPIO pins from transient surges exceeding 39 V in automotive body electronics. IC Role / Device Role / Timing Role: Shunt clamping device diverting excess energy to ground during ESD or load-dump events. Use Value: 40 W non-repetitive peak power rating (100 μs) absorbs IEC 61000-4-2 Level 4 surges without failure. |
| Low-Power Voltage Monitor | Current Source Bias |
Use Scenario: Detecting undervoltage condition in portable medical devices using comparator input referenced to 39 V Zener. IC Role / Device Role / Timing Role: Stable threshold generator enabling reliable brown-out detection at fixed VZ. Use Value: 75 μA IR at 31.2 V ensures <1 μA standby current draw, extending battery life in sleep mode. |
Use Scenario: Setting bias current for discrete transistor amplifiers in audio preamplifier stages. IC Role / Device Role / Timing Role: Constant-current source formed with series resistor, leveraging sharp Zener knee at 2 mA. Use Value: 0.05 mV/K temperature coefficient minimizes current drift over –40 °C to +85 °C ambient range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZT52C39,115 | Same SOD123F package and 39 V nominal VZ, but ±5 % tolerance achieved via different process binning; identical rdif and IR specs. | No functional difference in regulation or clamping; validated for same PCB footprints and thermal layouts. | Select when BZT52H-C39,115 is unavailable - full drop-in replacement with identical qualification status. |
| MMBZ5242BS-7-F | 39 V Zener in SOT-23 package; ±5 % tolerance; higher rdif (700 Ω max); lower Ptot (350 mW). | Higher impedance limits use in precision references; lower power rating restricts to low-current clamping only. | Choose only if SOT-23 footprint is mandatory and load current stays below 1 mA with adequate thermal relief. |
Compared with BZT52C39,115, the BZT52H-C39,115 offers identical electrical performance but reflects Nexperia's updated non-automotive qualification; versus MMBZ5242BS-7-F, it delivers 2.4× higher power handling and half the dynamic impedance for tighter regulation.
Availability
BZT52H-C39,115 is available at Aetrix Electronics and suitable for industrial sensor interfaces, battery-powered voltage monitors, and embedded system overvoltage protection requiring stable component supply and long-term obsolescence management.
Supply support for BZT52H-C39,115 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 for cost-effective, space-constrained voltage regulation and protection in consumer, industrial, and computing applications.
FAQ
What is the maximum continuous reverse current the BZT52H-C39,115 can sustain?
The device has no specified maximum continuous reverse current; instead, its safe operating area is defined by power dissipation limits. At 39 V, continuous current must be limited to ≤21.3 mA to stay within the 830 mW Ptot rating at Tamb = 25 °C. Derating is required above 25 °C per the thermal resistance curve.
Does the BZT52H-C39,115 meet automotive AEC-Q200 requirements?
No. Per Nexperia's Rev. 7 datasheet revision history, the BZT52H series is explicitly designated as non-automotive qualified. Automotive alternatives are available under the BZT52H-Q series, which undergo separate qualification testing per AEC-Q200 standards.
How does the temperature coefficient affect regulation accuracy over –40 °C to +125 °C?
With a specified SZ of +0.05 mV/K at IZ = 2 mA, the BZT52H-C39,115 exhibits approximately ±1.7 V drift across that 165 K range - translating to ±4.4 % deviation from nominal 39 V. This must be factored into reference-critical designs or compensated via circuit topology.
Can the SOD123F package be hand-soldered reliably?
Reflow soldering is the only recommended method per Nexperia's documentation. Hand-soldering risks thermal damage due to localized overheating; the SOD123F's small size and thermal mass make controlled reflow essential to avoid delamination or junction degradation.
BZT52H-C39,115 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):
- 39 V
- Tolerance:
- ±5%
- Power - Max:
- 375 mW
- Impedance (Max) (Zzt):
- 75 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 27.3 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-C39,115 FAQ
1.How can I place an order for BZT52H-C39,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52H-C39,115 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-C39,115 reliable?
The price and inventory of BZT52H-C39,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52H-C39,115 is usually 5 days.
3.What payment methods are accepted for BZT52H-C39,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52H-C39,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52H-C39,115?
BZT52H-C39,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52H-C39,115 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-C39,115?
For technical support, including BZT52H-C39,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52H-C39,115 requirements.
6.How does Aetrix verify that BZT52H-C39,115 is sourced from the original manufacturer or authorized distributors?
All BZT52H-C39,115 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-C39,115 meets industry standards.
7.What is the process for return or replacement of BZT52H-C39,115?
All BZT52H-C39,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZT52H-C39,115, 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-C39,115 part is unused and in its original packaging.
Return procedure for BZT52H-C39,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZT52H-C39,115 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…
