My Inquiry
My Account
Nexperia USA Inc. BZX79-C3V6,143
- Part No.:
- BZX79-C3V6,143
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
BZX79-C3V6,143.pdf
- Description:
- DIODE ZENER 3.6V 400MW ALF2
- Quantity:
- Payment:
- Shipping:
Inventory:4,996
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BZX79-C3V6,143 from Nexperia is a ±5% tolerance Zener voltage regulator diode in a hermetically sealed SOD27 (DO-35) glass package, rated for 3.6 V nominal working voltage at 5 mA test current, 500 mW total power dissipation at 50 °C ambient, and 40 W non-repetitive peak reverse power. It serves as a low-power voltage reference in linear regulators and signal conditioning circuits.
For engineers reviewing the BZX79-C3V6,143 datasheet, BZX79-C3V6,143 pinout, BZX79-C3V6,143 application, or BZX79-C3V6,143 equivalent, this part is selected for precision biasing, overvoltage clamping, and analog reference generation where ±5% tolerance and low thermal drift (−2.4 mV/K typical) are acceptable trade-offs for cost-sensitive, low-current designs.
Technical Context
This Zener diode operates in reverse breakdown mode with a specified differential resistance of 375 Ω (typical) at 5 mA, enabling stable regulation under small-signal load variations. Its temperature coefficient is −2.4 mV/K at IZ = 5 mA, indicating predictable negative drift across operating temperatures.
The device features a junction-to-ambient thermal resistance of 380 K/W (lead length ≤8 mm), limiting continuous power handling in still-air PCB mounting. Its 450 pF capacitance at 0 V reverse bias supports use in low-frequency stabilization but not RF applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage (VZ) | 3.6 V at IZ = 5 mA - defines stable regulation point for reference circuits |
| Voltage Tolerance | ±5% (C-series) - allows cost-effective selection where tight regulation is not critical |
| Differential Resistance (rdiff) | 375 Ω (typical) at 5 mA - determines output impedance and load regulation sensitivity |
| Max Power Dissipation (Ptot) | 500 mW at Tamb = 50 °C - sets maximum continuous DC power in standard PCB mount |
| Reverse Current (IR) | 5 μA at VR = 1 V - ensures low leakage in high-impedance bias networks |
| Temperature Coefficient (SZ) | −2.4 mV/K (typical) at 5 mA - quantifies voltage drift per degree Celsius rise |
| Non-repetitive Peak Power (PZSM) | 40 W at tp = 100 μs - enables transient overvoltage suppression without failure |
Pinout & Package
Hermetically sealed axial-leaded SOD27 (DO-35) glass package with cathode band marking; leads are untrimmed, intended for through-hole mounting on PCBs without metallization pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / low-voltage side in Zener mode | Connected to ground or lower potential in shunt regulator configuration |
| Cathode | Reverse breakdown terminal / regulated output node | Connected to input voltage source and load; provides stable 3.6 V reference when reverse-biased |
Key Features
| Feature | Design Value |
|---|---|
| Low-cost ±5% tolerance option | Enables budget-conscious voltage referencing without trimming or feedback compensation |
| Hermetic glass SOD27 package | Ensures long-term stability and moisture resistance in industrial environments |
| 40 W surge capability | Provides robustness against ESD and line transients in unprotected input stages |
| Low 5 μA reverse leakage at 1 V | Minimizes error in high-impedance divider networks and battery-powered references |
| −2.4 mV/K tempco at 5 mA | Supports predictable calibration offset correction in temperature-compensated designs |
Applications
| Power Supply Reference | Signal Level Clamping |
|---|---|
Use Scenario: Providing stable 3.6 V bias for op-amp input stages in low-power sensor interfaces. IC Role / Device Role / Timing Role: Shunt voltage reference establishing precise common-mode level for analog front-end circuitry. Use Value: Maintains consistent amplifier offset despite supply ripple, using only 5 mA quiescent current and no active regulation. |
Use Scenario: Limiting analog signal swing to prevent ADC input overload in data acquisition modules. IC Role / Device Role / Timing Role: Passive clamp protecting downstream converters from >3.6 V excursions during transient events. Use Value: Absorbs up to 40 W surges for 100 μs without degradation, eliminating need for additional TVS devices. |
| Microcontroller Reset Circuit | Current Source Biasing |
Use Scenario: Generating clean reset threshold for 3.3 V microcontrollers during brown-out conditions. IC Role / Device Role / Timing Role: Zener-based voltage detector triggering POR logic via comparator input. Use Value: Delivers repeatable 3.6 V trip point with <5 μA leakage, ensuring reliable startup sequencing. |
Use Scenario: Setting reference current for constant-current LED drivers in indicator panels. IC Role / Device Role / Timing Role: Stable voltage node defining emitter-base drop in transistor-based current mirrors. Use Value: Enables ±5% current accuracy across temperature with minimal component count and zero active parts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4728A | 3.3 V nominal, ±5%, DO-41 package, 1 W Ptot | Higher power rating but larger footprint; less suitable for space-constrained PCBs | Select when >500 mW continuous dissipation is required and board area permits DO-41 |
| BZX79-B3V6,113 | Same 3.6 V nominal, but ±2% tolerance, identical SOD27 package | Tighter regulation needed for precision analog circuits; higher cost and tighter test screening | Select when voltage accuracy better than ±5% is mandatory for system-level calibration |
Compared with BZX79-C3V6,143, the 1N4728A offers higher power but requires more board space, while the BZX79-B3V6,113 delivers improved voltage accuracy at the expense of cost and availability-making the C-series optimal for cost-driven, general-purpose stabilization.
Availability
BZX79-C3V6,143 is available at Aetrix Electronics and suitable for low-power voltage references, analog signal clamping, microcontroller reset circuits, and current-source biasing requiring stable component supply across industrial control, consumer electronics, and embedded sensor systems.
Supply support for BZX79-C3V6,143 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 leader in discrete semiconductors, formed in 2017 from the former NXP Standard Products division, specializing in high-volume, high-reliability components for automotive, industrial, and consumer markets.
BZX79-C3V6,143 belongs to the BZX79 series of low-power Zener diodes designed specifically for cost-sensitive voltage regulation and reference applications in space-constrained, low-current electronic systems.
FAQ
What is the maximum continuous forward current for BZX79-C3V6,143?
The absolute maximum continuous forward current is 250 mA at Tamb = 25 °C. However, operation in forward bias is not its intended function; it is designed for reverse-bias Zener regulation. Forward conduction should be avoided in normal use to preserve long-term stability and avoid thermal stress beyond rated limits.
Can BZX79-C3V6,143 be used in surface-mount designs?
No-it is packaged exclusively in the axial-leaded SOD27 (DO-35) glass case, which requires through-hole mounting. There is no SMD variant in the BZX79-C series. For surface-mount equivalents, consider Nexperia's PMZ series or other SOT23-packaged Zeners with matching voltage ratings.
How does the −2.4 mV/K temperature coefficient affect circuit performance?
This coefficient means the Zener voltage decreases by approximately 2.4 mV per Kelvin rise in junction temperature. At 5 mA test current, a 50 °C rise causes ~120 mV drop-from 3.60 V to ~3.48 V-requiring derating or compensation in precision references, but remaining acceptable for non-critical biasing.
Is the cathode marked on the BZX79-C3V6,143 package?
Yes-the cathode is identified by a distinct color band (typically black or dark stripe) near one end of the glass body. This band must be oriented toward the higher-potential node in shunt regulator configurations to ensure proper reverse-bias operation and voltage regulation.
BZX79-C3V6,143 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- DO-204AH, DO-35, Axial
- Packaging:
- Cut Tape (CT)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 3.6 V
- Tolerance:
- ±5%
- Power - Max:
- 400 mW
- Impedance (Max) (Zzt):
- 90 Ohms
- Current - Reverse Leakage @ Vr:
- 5 µA @ 1 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -65°C ~ 200°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- ALF2
BZX79-C3V6,143 FAQ
1.How can I place an order for BZX79-C3V6,143 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX79-C3V6,143 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 BZX79-C3V6,143 reliable?
The price and inventory of BZX79-C3V6,143 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX79-C3V6,143 is usually 5 days.
3.What payment methods are accepted for BZX79-C3V6,143?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX79-C3V6,143 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX79-C3V6,143?
BZX79-C3V6,143 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX79-C3V6,143 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 BZX79-C3V6,143?
For technical support, including BZX79-C3V6,143 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX79-C3V6,143 requirements.
6.How does Aetrix verify that BZX79-C3V6,143 is sourced from the original manufacturer or authorized distributors?
All BZX79-C3V6,143 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 BZX79-C3V6,143 meets industry standards.
7.What is the process for return or replacement of BZX79-C3V6,143?
All BZX79-C3V6,143 units undergo pre-shipment inspection (PSI). If there is an issue with BZX79-C3V6,143, 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 BZX79-C3V6,143 part is unused and in its original packaging.
Return procedure for BZX79-C3V6,143:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX79-C3V6,143 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…
