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Nexperia USA Inc. BZT52-C4V7J
- Part No.:
- BZT52-C4V7J
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123
- Datasheet:
-
BZT52-C4V7J.pdf
- Description:
- DIODE ZENER 4.7V 350MW SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:24,908
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Product details
Overview
BZT52-C4V7J from Nexperia is a ±5 % tolerance Zener diode in SOD123 package, rated for 4.7 V nominal regulation at 5 mA, with 500 Ω max differential resistance and 3 μA reverse current at 3.7 V, used for low-power voltage reference and overvoltage clamping in consumer power rails.
For engineers reviewing the BZT52-C4V7J datasheet, BZT52-C4V7J pinout, BZT52-C4V7J application, or BZT52-C4V7J equivalent, key selection criteria include Zener voltage tolerance, thermal resistance (210 K/W junction-to-solder-point), power derating above 25 °C, and cathode-anode polarity marking on SOD123 body.
Technical Context
This Zener operates in reverse breakdown mode to maintain stable voltage across load variations, with temperature coefficient of −3.5 to +0.2 mV/K at 5 mA, enabling predictable drift compensation in bias networks. Its low 350 mW total power dissipation at 25 °C requires thermal-aware PCB layout with ≥1 cm² cathode pad for full rating.
The device exhibits 0.9 V forward voltage at 10 mA and supports non-repetitive peak reverse current up to 6.0 A (100 μs pulse), making it suitable for transient suppression in low-energy signal paths where fast recovery is not required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 4.4 V to 5.0 V at IZ = 5 mA - defines regulation window for precision 4.7 V reference |
| Differential Resistance (rdif) | ≤ 500 Ω - limits output impedance-induced voltage shift under load current change |
| Reverse Current (IR) | ≤ 3 μA at VR = 3.7 V - ensures minimal leakage in standby-biased circuits |
| Total Power Dissipation (Ptot) | 590 mW at Tamb ≤ 25 °C - sets maximum continuous DC power before thermal shutdown risk |
| Junction-to-Solder-Point Rth | 210 K/W - determines required copper area for thermal management on FR4 PCB |
| Forward Voltage (VF) | ≤ 0.9 V at IF = 10 mA - defines conduction loss when used as clamp in forward direction |
| Non-repetitive Peak IZSM | 6.0 A (100 μs) - specifies surge handling capability for ESD or transient events |
Pinout & Package
SOD123 surface-mount plastic package: 2.80 mm × 1.70 mm × 1.30 mm body, cathode marked by band, designed for reflow soldering only with defined footprint per Figure 12.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; marking band identifies this terminal; carries reverse current during regulation |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes reverse-bias path for Zener operation |
Key Features
| Feature | Design Value |
|---|---|
| ±5 % Zener voltage tolerance | Enables cost-effective voltage referencing where tight regulation is not critical, e.g., microcontroller reset thresholds |
| Low differential resistance (≤500 Ω) | Maintains <±25 mV output shift across 1–10 mA load variation, improving stability in analog sensor biasing |
| Small SOD123 footprint | Reduces board area by >40 % vs. DO-35 through-hole equivalents, supporting high-density portable designs |
| 150 °C max junction temperature | Allows operation in sealed enclosures or near heat sources without derating below ambient ratings |
| Cathode band marking | Eliminates orientation errors during automated placement, reducing SMT defect rate in volume production |
Applications
| Power Supply Reference | Overvoltage Clamp |
|---|---|
Use Scenario: Providing stable 4.7 V reference for ADC voltage dividers in battery-powered IoT sensors. IC Role / Device Role / Timing Role: Zener diode operating in reverse breakdown to fix reference node potential independent of supply ripple. Use Value: Enables ±1.5 % measurement accuracy despite 10–15 % Li-ion battery voltage sag from 4.2 V to 3.6 V. |
Use Scenario: Protecting GPIO pins of an ESP32 microcontroller against 5 V USB line transients. IC Role / Device Role / Timing Role: Clamping element shunting excess voltage above 4.7 V to ground during ESD events. Use Value: Limits pin voltage to safe level (<5.0 V) with <10 ns response, preventing latch-up without adding series resistance. |
| Signal Level Shifting | Current Source Bias |
Use Scenario: Generating −0.3 V offset for op-amp input stage in single-supply audio preamplifier. IC Role / Device Role / Timing Role: Forward-biased anode-cathode path establishing fixed voltage drop relative to ground. Use Value: Delivers consistent 0.9 V forward drop at 10 mA, enabling precise DC bias without dedicated negative rail. |
Use Scenario: Setting bias current for a phototransistor amplifier in industrial smoke detector circuit. IC Role / Device Role / Timing Role: Zener-regulated current source formed with series resistor to stabilize collector current. Use Value: Maintains ±3 % current accuracy across −40 °C to +85 °C due to matched temperature coefficient of resistor and Zener. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5225BS-7-F (Diodes Inc.) | Same 4.7 V nominal, ±5 %, but SOT-23 package; 600 mW Ptot; 700 Ω rdif | Higher thermal resistance (300 K/W j-a) reduces usable power in compact layouts | Prefer when existing SOT-23 footprint must be reused; accept higher impedance for space savings |
| BZX84-C4V7 (Nexperia) | Same 4.7 V, ±5 %, but SOT-23 package; 300 mW Ptot; 60 Ω rdif at 5 mA | Lower rdif improves regulation but lower power rating restricts to sub-5 mA loads | Choose for tighter voltage stability in low-current references; avoid in >3 mA clamping roles |
Compared with BZT52-C4V7J, MMBZ5225BS-7-F trades lower impedance for higher thermal resistance in SOT-23, while BZX84-C4V7 offers superior regulation at half the power budget-making BZT52-C4V7J optimal for mid-power clamping where SOD123's 590 mW and 500 Ω balance is critical.
Availability
BZT52-C4V7J is available at Aetrix Electronics and suitable for consumer power management, industrial sensor biasing, and automotive infotainment subsystems requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for BZT52-C4V7J 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, headquartered in Nijmegen, Netherlands, with manufacturing in Asia and Europe.
The BZT52 series targets general-purpose voltage regulation and protection in cost-sensitive, space-constrained applications, emphasizing manufacturability, thermal robustness, and wide-voltage coverage from 2.4 V to 75 V.
FAQ
What is the maximum continuous reverse current for BZT52-C4V7J at 25 °C ambient?
The device is rated for 5 mA Zener test current, but its absolute maximum limiting value is 250 mA forward current; reverse current is not specified as continuous-operation beyond 5 mA requires thermal derating per the 590 mW total power limit and 210 K/W junction-to-solder-point resistance. Sustained currents above 20 mA demand ≥1 cm² cathode copper area.
Can BZT52-C4V7J replace a 5.1 V Zener in a 5 V rail clamp?
No-its 4.4–5.0 V Zener range is below typical 5 V rail tolerances; clamping would activate prematurely, potentially disrupting downstream logic. A BZT52-C5V1 (4.8–5.4 V) or BZT52-C5V6 (5.2–6.0 V) is appropriate for 5 V systems, ensuring margin above nominal rail while avoiding false triggering.
How does the ±5 % tolerance affect regulation accuracy in a 12-bit ADC reference?
At 4.7 V nominal, ±5 % yields ±0.235 V variation, translating to ±48 LSB error in a 4.7 V full-scale 12-bit ADC-exceeding typical 12-bit INL specs. For such applications, use the tighter ±2 % B-series variant (e.g., BZT52-B4V7) or add post-regulation filtering to reduce effective error to <±1 LSB.
Is BZT52-C4V7J qualified for automotive applications?
No-per Nexperia's revision history (Section 13), C-series devices were explicitly changed to non-automotive qualification in Rev. 2. Automotive-grade alternatives include the BZT52-Q series (e.g., BZT52-Q4V7), which undergo AEC-Q101 stress testing and include extended temperature screening and failure analysis reporting.
BZT52-C4V7J 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):
- 4.7 V
- Tolerance:
- ±6.4%
- Power - Max:
- 350 mW
- Impedance (Max) (Zzt):
- 78 Ohms
- Current - Reverse Leakage @ Vr:
- 3 µA @ 2 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-C4V7J FAQ
1.How can I place an order for BZT52-C4V7J through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52-C4V7J 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-C4V7J reliable?
The price and inventory of BZT52-C4V7J are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52-C4V7J is usually 5 days.
3.What payment methods are accepted for BZT52-C4V7J?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52-C4V7J transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52-C4V7J?
BZT52-C4V7J orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52-C4V7J 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-C4V7J?
For technical support, including BZT52-C4V7J datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52-C4V7J requirements.
6.How does Aetrix verify that BZT52-C4V7J is sourced from the original manufacturer or authorized distributors?
All BZT52-C4V7J 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-C4V7J meets industry standards.
7.What is the process for return or replacement of BZT52-C4V7J?
All BZT52-C4V7J units undergo pre-shipment inspection (PSI). If there is an issue with BZT52-C4V7J, 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-C4V7J part is unused and in its original packaging.
Return procedure for BZT52-C4V7J:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZT52-C4V7J Tags
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MM5Z5V1ST1G
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