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Nexperia USA Inc. NZX2V7A,133
- Part No.:
- NZX2V7A,133
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
NZX2V7A,133.pdf
- Description:
- DIODE ZENER 2.6V 500MW ALF2
- Quantity:
- Payment:
- Shipping:
Inventory:3,702
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Product details
Overview
NZX2V7A,133 from Nexperia is a single Zener diode in a hermetically sealed SOD27 (SC-40) glass package, designed for precision voltage regulation at 2.7 V nominal Zener voltage with ±0.2 V tolerance (2.5–2.9 V), 100 Ω differential resistance at 5 mA, and ≤20 µA reverse leakage current. It delivers stable reference voltage in low-power analog circuits, power supply feedback loops, and overvoltage protection stages.
For engineers reviewing the NZX2V7A,133 datasheet, NZX2V7A,133 pinout, NZX2V7A,133 application, or NZX2V7A,133 equivalent, this component supports design validation of 2.7 V reference stability, thermal derating in FR4 PCB environments, cathode-anode polarity verification, and substitution in legacy axial-leaded Zener regulator circuits.
Technical Context
This Zener diode operates in reverse breakdown mode with a specified working voltage of 2.7 V at IZ = 5 mA, exhibiting low dynamic impedance (100 Ω typ.) and minimal temperature coefficient drift across 25–150 °C. Its junction-to-ambient thermal resistance is 380 K/W under free-air conditions on FR4 PCB.
The device uses axial-leaded SOD27 packaging with cathode indicated by a band, enabling manual or wave-solder assembly. It complies with IEC 60134 absolute maximum ratings, including 500 mW total power dissipation and 175 °C maximum junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 2.5–2.9 V at IZ = 5 mA - defines precise clamping threshold for 2.7 V nominal regulation |
| Differential Resistance (rdif) | 100 Ω max at IZ = 5 mA - ensures minimal output voltage variation under load current changes |
| Reverse Leakage Current (IR) | ≤20 µA at VR = 1 V - guarantees low standby power loss in always-on reference circuits |
| Total Power Dissipation (Ptot) | 500 mW at Ttp ≤ 25 °C - sets maximum continuous DC power handling before thermal shutdown |
| Junction-to-Ambient Rth(j-a) | 380 K/W in free air - determines temperature rise per watt, critical for derating above 25 °C ambient |
| Forward Voltage (VF) | ≤1.5 V at IF = 200 mA - enables use as low-drop rectifier or clamp in forward bias if needed |
| Operating Temperature Range | −55 to +175 °C ambient - supports industrial and extended-temperature applications without derating |
Pinout & Package
Package: SOD27 (SC-40), hermetically sealed axial-leaded glass package with 2 leads; cathode identified by a colored band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (banded end) | Cathode | Connected to regulated output node; reverse-biased terminal where Zener breakdown occurs |
| 2 (non-banded end) | Anode | Connected to ground or lower-potential rail; completes reverse-bias path for regulation |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic glass sealing | Prevents moisture ingress and long-term parameter drift in humid or harsh environments |
| Low differential resistance | 100 Ω max ensures tight voltage regulation under varying load currents in feedback networks |
| Low leakage current | ≤20 µA at 1 V reverse bias minimizes quiescent current in battery-powered voltage references |
| Stable 2.7 V Zener voltage | Tight 2.5–2.9 V range enables accurate threshold setting for brown-out detection and LDO enable circuits |
| High junction temperature rating | 175 °C max allows operation in thermally constrained enclosures without external heatsinking |
Applications
| Power Supply Feedback Reference | Brown-Out Detection Circuit |
|---|---|
|
Use Scenario: Provides stable 2.7 V reference for optocoupler-based feedback in isolated AC/DC flyback converters. IC Role / Device Role / Timing Role: Zener diode acts as precision shunt reference, setting error amplifier trip point in secondary-side regulation loop. Use Value: Enables ±2% output voltage accuracy over line/load/temperature with no external trimming required. |
Use Scenario: Detects system voltage drop below 2.7 V to trigger MCU reset or warning flag in embedded controllers. IC Role / Device Role / Timing Role: Functions as threshold comparator element in discrete reset generator circuit with RC timing. Use Value: Delivers deterministic 2.7 V trip point with <10 µs response to voltage sag, eliminating software polling overhead. |
| Overvoltage Clamp for GPIO Protection | Low-Power Sensor Biasing |
|
Use Scenario: Clamps transient spikes on microcontroller input pins exposed to ESD or inductive kickback. IC Role / Device Role / Timing Role: Shunt limiter that conducts excess energy to ground when voltage exceeds 2.7 V + VF. Use Value: Limits pin voltage to safe levels (<3.5 V peak) while drawing <1 mA during clamping, preserving I/O integrity. |
Use Scenario: Supplies stable 2.7 V bias to analog sensor elements (e.g., thermistors, RTDs) in portable instrumentation. IC Role / Device Role / Timing Role: Low-drift voltage source delivering constant excitation current via series resistor. Use Value: Maintains sensor linearity within ±0.5% over −40 to +85 °C due to low tempco and leakage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4728A | 2.4 V nominal, 500 mW, DO-41 package, higher rdif (100 Ω min) | Less precise 2.4 V reference; larger DO-41 footprint requires PCB rework | Select only if 2.4 V threshold is acceptable and axial lead spacing permits mechanical fit |
| BZX55C2V7 | 2.7 V nominal, 500 mW, DO-35 glass package, 150 Ω rdif, 50 µA IR | Higher leakage and impedance reduce regulation accuracy in low-current sensors | Acceptable for cost-sensitive non-critical clamping where 20 µA leakage is not limiting |
Compared with NZX2V7A,133, the 1N4728A shifts regulation downward by 0.3 V and increases board area, while BZX55C2V7 trades tighter voltage tolerance for higher impedance and leakage-making NZX2V7A,133 optimal for precision 2.7 V references demanding low drift and minimal standby loss.
Availability
NZX2V7A,133 is available at Aetrix Electronics and suitable for power supply feedback reference, brown-out detection, overvoltage clamp for GPIO protection, and low-power sensor biasing requiring stable component supply and consistent Zener voltage performance across production batches.
Supply support for NZX2V7A,133 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 leadership in automotive-qualified and industrial-grade components.
NZX series Zener diodes are engineered for general-purpose voltage regulation and protection in cost-sensitive, space-constrained applications where hermetic reliability and tight voltage tolerance are essential.
FAQ
What is the maximum continuous power dissipation for NZX2V7A,133?
The NZX2V7A,133 has a total power dissipation limit of 500 mW at lead temperature ≤25 °C. Derating is required above 25 °C ambient per the 380 K/W junction-to-ambient thermal resistance; at 75 °C ambient, maximum allowable power drops to approximately 375 mW to maintain Tj ≤175 °C.
How is polarity identified on the NZX2V7A,133 package?
The cathode is marked by a visible color band on the glass body of the SOD27 package. Pin 1 (banded end) is the cathode; Pin 2 (unmarked end) is the anode. This marking aligns with standard diode polarity conventions and must be observed during PCB layout and assembly to ensure correct reverse-bias operation.
Can NZX2V7A,133 be used in surface-mount designs?
No-NZX2V7A,133 uses an axial-leaded SOD27 (SC-40) glass package intended for through-hole or axial mounting. It lacks SMD-compatible terminations or land patterns. For surface-mount equivalents, consider Nexperia's BZX384-B2V7 (SOD-323) or similar SMD Zener families with matching 2.7 V specification.
What is the typical temperature coefficient behavior near 2.7 V?
At 2.7 V and IZ = 5 mA, the NZX2V7A,133 exhibits a negative temperature coefficient of approximately −3 mV/K (per Fig 3), meaning its Zener voltage decreases slightly as temperature rises. This behavior is stable and repeatable, enabling predictable compensation in temperature-sensitive reference designs.
NZX2V7A,133 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- NZX
- Package/Case:
- DO-204AH, DO-35, Axial
- Packaging:
- Cut Tape (CT)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 2.6 V
- Tolerance:
- ±4%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 20 µA @ 1 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.5 V @ 200 mA
- Operating Temperature:
- -55°C ~ 175°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- ALF2
NZX2V7A,133 FAQ
1.How can I place an order for NZX2V7A,133 through Aetrix?
Please submit a Request for Quotation (RFQ) for NZX2V7A,133 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 NZX2V7A,133 reliable?
The price and inventory of NZX2V7A,133 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NZX2V7A,133 is usually 5 days.
3.What payment methods are accepted for NZX2V7A,133?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NZX2V7A,133 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NZX2V7A,133?
NZX2V7A,133 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NZX2V7A,133 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 NZX2V7A,133?
For technical support, including NZX2V7A,133 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NZX2V7A,133 requirements.
6.How does Aetrix verify that NZX2V7A,133 is sourced from the original manufacturer or authorized distributors?
All NZX2V7A,133 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 NZX2V7A,133 meets industry standards.
7.What is the process for return or replacement of NZX2V7A,133?
All NZX2V7A,133 units undergo pre-shipment inspection (PSI). If there is an issue with NZX2V7A,133, 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 NZX2V7A,133 part is unused and in its original packaging.
Return procedure for NZX2V7A,133:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NZX2V7A,133 Tags
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