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Nexperia USA Inc. BZT52-C2V7X
- Part No.:
- BZT52-C2V7X
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123
- Datasheet:
-
BZT52-C2V7X.pdf
- Description:
- DIODE ZENER 2.7V 350MW SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:6,000
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Product details
Overview
BZT52-C2V7X from Nexperia is a ±5 % tolerance Zener diode in SOD123 package, rated for 2.7 V nominal Zener voltage at 5 mA, 500 Ω max differential resistance, and 590 mW total power dissipation. It serves as a precision voltage reference or low-power regulation element in biasing, overvoltage clamping, and signal-level stabilization circuits.
For engineers reviewing the BZT52-C2V7X datasheet, BZT52-C2V7X pinout, BZT52-C2V7X application, or BZT52-C2V7X equivalent, key selection factors include its 2.5–2.9 V working range (IZ = 5 mA), cathode-anode polarity marking, SOD123 thermal performance (Rth(j-a) = 350 K/W), and non-automotive qualification status per latest revision.
Technical Context
This Zener diode operates in reverse breakdown to maintain stable voltage under varying load or supply conditions. Its 2.7 V nominal Zener voltage is specified at 5 mA test current with ±5 % tolerance, and exhibits low temperature coefficient (−3.5 to 0.0 mV/K) across 25–150 °C junction range.
The device features 500 Ω maximum differential resistance at IZ = 5 mA, enabling predictable regulation slope, and supports up to 250 mA forward current. Reverse leakage remains ≤1 μA at VR = 1 V, ensuring minimal quiescent loss in standby configurations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 2.7 V nominal at IZ = 5 mA; actual range 2.5–2.9 V defines usable regulation window |
| Tolerance | ±5 %; determines worst-case voltage deviation in production designs |
| Differential Resistance rdif | ≤500 Ω at IZ = 5 mA; governs output impedance and load regulation error |
| Power Dissipation Ptot | 590 mW at Tamb ≤ 25 °C; sets maximum continuous reverse power before thermal derating |
| Forward Voltage VF | ≤0.9 V at IF = 10 mA; defines conduction loss when used in forward-biased protection paths |
| Reverse Current IR | ≤1 μA at VR = 1 V; ensures low standby current in voltage-reference applications |
| Junction Temperature Tj | −55 to +150 °C; defines operational envelope for industrial ambient conditions |
Pinout & Package
Package: SOD123 - surface-mount plastic package with 2 leads, 2.80 mm × 1.70 mm footprint, 1.3 mm height, cathode marked by band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; marking bar identifies this terminal |
| 2 | Anode (A) | Connected to ground or lower-potential rail; reverse-bias current flows anode-to-cathode |
Key Features
| Feature | Design Value |
|---|---|
| Low differential resistance | 500 Ω max at 5 mA enables tight voltage regulation under load variation |
| Stable temperature coefficient | −3.5 to 0.0 mV/K allows predictable drift compensation in wide-temperature designs |
| SMD-compatible footprint | SOD123 outline supports automated placement and reflow soldering on FR4 PCBs |
| Controlled reverse leakage | ≤1 μA at 1 V reverse bias minimizes current draw in battery-powered reference circuits |
| High surge capability | 40 W non-repetitive peak reverse power (tp = 100 μs) provides transient overvoltage resilience |
Applications
| Power Supply Rail Clamping | Microcontroller I/O Protection |
|---|---|
Use Scenario: Clamp 3.3 V logic rail against ESD or inductive spikes in industrial sensor nodes. IC Role / Device Role / Timing Role: Zener acts as shunt regulator, diverting excess current to ground when rail exceeds 2.7 V + diode drop. Use Value: Prevents latch-up or damage to downstream CMOS inputs without adding series resistance that degrades signal integrity. |
Use Scenario: Protect GPIO pins of ARM Cortex-M microcontrollers from overvoltage during hot-plug events. IC Role / Device Role / Timing Role: Functions as bidirectional clamp-forward-conducting for negative transients, reverse-breakdown for positive excursions. Use Value: Maintains pin voltage within −0.3 V to 3.6 V absolute maximum ratings using single-device solution. |
| Reference Voltage Generator | Current Source Biasing |
Use Scenario: Generate stable 2.7 V reference for ADC biasing in portable medical instrumentation. IC Role / Device Role / Timing Role: Provides fixed voltage node for op-amp feedback networks or DAC reference dividers. Use Value: Enables <1 % full-scale error in 12-bit conversions without trimming, leveraging ±5 % initial tolerance and low tempco. |
Use Scenario: Set bias current for low-noise JFET amplifiers in audio front-end stages. IC Role / Device Role / Timing Role: Acts as voltage-controlled current source when combined with emitter/source resistor. Use Value: Delivers repeatable 1.5 mA bias (with 1.8 kΩ resistor) across temperature, minimizing gain drift in analog signal chains. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5221BS-7-F | 2.4 V nominal, ±5 %, SOT-23 package, 350 mW rating | Lower voltage and power; smaller footprint but higher thermal resistance (450 K/W) | Select when board space is constrained and 2.4 V reference suffices |
| BZX384-C2V7 | 2.7 V nominal, ±5 %, SOD-323 package, 300 mW rating | Same voltage grade but lower power and higher rdif (600 Ω); tighter footprint (1.7 × 1.3 mm) | Choose for ultra-dense layouts where 300 mW dissipation is adequate |
Compared with BZT52-C2V7X, MMBZ5221BS-7-F offers smaller size but reduced power handling and thermal margin, while BZX384-C2V7 trades dissipation capability for footprint reduction-both require recalculation of series resistor values and thermal layout due to differing Rth(j-a).
Availability
BZT52-C2V7X is available at Aetrix Electronics and suitable for power supply clamping, microcontroller I/O protection, reference voltage generation, and current source biasing requiring stable component supply across industrial, consumer, and computing applications.
Supply support for BZT52-C2V7X 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 devices with focus on efficiency and miniaturization.
The BZT52 series belongs to Nexperia's general-purpose Zener diode product line, designed specifically for cost-sensitive, space-constrained voltage regulation and protection tasks in non-automotive industrial and consumer electronics.
FAQ
What is the Zener voltage tolerance for BZT52-C2V7X?
BZT52-C2V7X has a ±5 % tolerance on its nominal 2.7 V Zener voltage, meaning the actual measured VZ at 5 mA falls between 2.5 V and 2.9 V. This tolerance is confirmed in Table 8 of the datasheet and applies across the full operating temperature range.
Can BZT52-C2V7X be used in automotive applications?
No-BZT52-C2V7X is explicitly designated as non-automotive qualified per Revision 2 (October 2025) of the datasheet. Nexperia states that only parts with "-Q" suffix meet AEC-Q200 requirements; this part lacks automotive qualification, testing, and warranty coverage for vehicle environments.
What is the maximum allowable forward current?
The absolute maximum forward current for BZT52-C2V7X is 250 mA, as specified in Table 5 (Limiting Values). However, sustained operation above 100 mA requires thermal derating due to SOD123 package limitations and ambient temperature constraints.
How is cathode polarity identified on the SOD123 package?
The cathode is identified by a visible marking band on the SOD123 body, aligned with Pin 1 per Figure 11 in the datasheet. The band corresponds to the cathode terminal (K), and the unmarked end is the anode (A); this matches the simplified outline in Table 2 (Pinning information).
BZT52-C2V7X Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SOD-123
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 2.7 V
- Tolerance:
- ±7.4%
- Power - Max:
- 350 mW
- Impedance (Max) (Zzt):
- 83 Ohms
- Current - Reverse Leakage @ Vr:
- 20 µA @ 1 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -55°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123
BZT52-C2V7X FAQ
1.How can I place an order for BZT52-C2V7X through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52-C2V7X 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 BZT52-C2V7X reliable?
The price and inventory of BZT52-C2V7X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52-C2V7X is usually 5 days.
3.What payment methods are accepted for BZT52-C2V7X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52-C2V7X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52-C2V7X?
BZT52-C2V7X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52-C2V7X 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 BZT52-C2V7X?
For technical support, including BZT52-C2V7X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52-C2V7X requirements.
6.How does Aetrix verify that BZT52-C2V7X is sourced from the original manufacturer or authorized distributors?
All BZT52-C2V7X 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 BZT52-C2V7X meets industry standards.
7.What is the process for return or replacement of BZT52-C2V7X?
All BZT52-C2V7X units undergo pre-shipment inspection (PSI). If there is an issue with BZT52-C2V7X, 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 BZT52-C2V7X part is unused and in its original packaging.
Return procedure for BZT52-C2V7X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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