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Nexperia USA Inc. BZT52-C30J
- Part No.:
- BZT52-C30J
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123
- Datasheet:
-
BZT52-C30J.pdf
- Description:
- DIODE ZENER 30V 350MW SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:534
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Product details
Overview
BZT52-C30J from Nexperia is a ±5 % tolerance Zener diode in SOD123 package, rated for 30 V nominal Zener voltage at IZ = 2 mA, with 250 Ω maximum differential resistance and 40 μA reverse current at VR = 28 V, used for precision voltage reference and overvoltage clamping in low-power analog signal conditioning circuits.
For engineers reviewing the BZT52-C30J datasheet, BZT52-C30J pinout, BZT52-C30J application, or BZT52-C30J equivalent, key selection criteria include Zener voltage tolerance, dynamic impedance at operating current, thermal resistance to solder point (210 K/W), and SOD123 footprint compatibility with automated SMT assembly.
Technical Context
This Zener diode operates in reverse breakdown mode with a specified VZ = 28.0–32.0 V range at IZ = 2 mA, exhibiting a temperature coefficient of +0.05 mV/K and junction-to-solder-point thermal resistance of 210 K/W under standard FR4 mounting conditions.
It supports non-repetitive peak reverse power dissipation up to 40 W for 100 μs pulses and maintains stable regulation across −55 °C to +150 °C ambient temperature, with forward voltage ≤0.9 V at 10 mA forward current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 28.0–32.0 V at IZ = 2 mA - defines regulated output voltage window for reference or clamp function |
| Differential Resistance (rdif) | ≤250 Ω - determines output voltage stability under load current variation |
| Reverse Current (IR) | ≤40 μA at VR = 28 V - ensures low leakage during standby or pre-breakdown operation |
| Total Power Dissipation (Ptot) | 590 mW at Tamb ≤ 25 °C - sets maximum continuous DC power handling on standard FR4 PCB |
| Thermal Resistance (Rth(j-sp)) | 210 K/W - quantifies junction-to-solder-point heat transfer efficiency for thermal design margining |
| Forward Voltage (VF) | ≤0.9 V at IF = 10 mA - enables use as low-drop rectifier or polarity protection element |
| Junction Temperature (Tj) | 150 °C maximum - constrains maximum allowable power derating in high-ambient environments |
Pinout & Package
SOD123 plastic surface-mounted package with 2 leads; cathode marked by a band on the body; dimensions: 3.75 mm × 1.7 mm × 1.3 mm (L × W × H); recommended reflow footprint per Fig. 12.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; marking band identifies this terminal; carries reverse breakdown current |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes reverse-biased path for Zener operation |
Key Features
| Feature | Design Value |
|---|---|
| ±5 % Zener voltage tolerance | Enables cost-effective voltage referencing where tight regulation is not required, e.g., supply rail supervision |
| Low differential resistance (≤250 Ω) | Minimizes output voltage shift under ±1 mA load current change, improving regulation accuracy |
| SOD123 package compatibility | Supports high-density PCB layouts and standard 0805-class pick-and-place equipment without footprint adaptation |
| Non-repetitive peak power (40 W) | Provides transient overvoltage suppression capability against ESD or surge events lasting ≤100 μs |
| −55 °C to +150 °C operating range | Validates suitability for industrial control modules and automotive under-hood auxiliary circuits (non-automotive qualified) |
Applications
| Power Supply Rail Clamp | ADC Reference Stabilization |
|---|---|
Use Scenario: Clamping 3.3 V or 5 V logic supply rails against transient overvoltage spikes in microcontroller-based sensor nodes. IC Role / Device Role / Timing Role: Zener diode operates in reverse breakdown to shunt excess current when rail voltage exceeds 30 V threshold. Use Value: Limits voltage excursion to safe levels using only 590 mW total dissipation, avoiding need for active TVS or crowbar circuitry. |
Use Scenario: Providing stable bias voltage for 12-bit SAR ADC reference input in battery-powered data loggers. IC Role / Device Role / Timing Role: Functions as low-current voltage reference source, delivering 30 V Zener voltage to external resistor divider scaling down to 2.5 V. Use Value: Achieves <100 ppm/°C effective TC via series resistor compensation, leveraging +0.05 mV/K intrinsic coefficient. |
| Signal Level Translation | Current Source Biasing |
Use Scenario: Shifting analog sensor output (e.g., 0–10 V industrial transducer) into microcontroller ADC input range (0–3.3 V). IC Role / Device Role / Timing Role: Used in passive resistive divider with Zener-clamped top node to prevent overvoltage during sensor fault conditions. Use Value: Ensures fault-tolerant level translation without adding active components, maintaining signal integrity below 30 V. |
Use Scenario: Setting bias current for op-amp based constant-current sink driving LED indicators in HVAC control panels. IC Role / Device Role / Timing Role: Provides fixed 30 V reference to generate precise 1 mA bias current through series resistor. Use Value: Delivers stable current within ±5 % tolerance across temperature, eliminating need for trimming potentiometers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor MMBZ5262B | 30 V nominal, ±5 %, 200 Ω rdif, SOT-23 package | Higher pin count and larger footprint; requires different stencil and placement setup | Select when existing SOT-23 layout exists and lower dynamic impedance is prioritized over board space |
| Vishay BZX84-C30 | 30 V nominal, ±5 %, 300 Ω rdif, SOT-23 package | Higher differential resistance reduces regulation precision under load variation | Choose for legacy SOT-23 compatibility where 50 Ω higher rdif is acceptable in low-current applications |
Compared with BZT52-C30J, MMBZ5262B offers tighter dynamic impedance but demands SOT-23 retooling, while BZX84-C30 retains SOT-23 compatibility at the cost of 20 % higher rdif, making BZT52-C30J optimal for new SOD123 designs requiring balance of precision, size, and thermal performance.
Availability
BZT52-C30J is available at Aetrix Electronics and suitable for voltage reference generation, overvoltage protection, and analog signal conditioning requiring stable component supply across industrial automation, test equipment, and IoT edge sensor modules.
Supply support for BZT52-C30J 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 manufacturer headquartered in Nijmegen, Netherlands, specializing in high-volume logic, discrete, and MOSFET solutions with emphasis on reliability and manufacturability.
BZT52-C30J belongs to the BZT52 series of general-purpose Zener diodes designed for cost-sensitive, space-constrained voltage regulation and clamping in consumer, industrial, and computing applications.
FAQ
What is the Zener test current for BZT52-C30J?
The BZT52-C30J is characterized at IZ = 2 mA for Zener voltage specification, as confirmed in Table 9 of the datasheet. This differs from the 5 mA test condition used for lower-voltage variants in the same series and directly impacts measured VZ and rdif values.
Can BZT52-C30J be used in automotive applications?
No - BZT52-C30J is explicitly designated as non-automotive qualified per Section 13 revision history. It lacks AEC-Q200 qualification, has no automotive-grade screening, and is not tested to automotive temperature or reliability requirements.
How does the SOD123 package affect thermal performance?
The SOD123 package delivers Rth(j-sp) = 210 K/W to the cathode solder point, enabling 590 mW continuous dissipation only when mounted on FR4 with 1 cm² cathode pad. Without that pad, thermal limit drops to 350 mW per Rth(j-a) = 350 K/W.
What is the maximum reverse voltage before breakdown?
The guaranteed minimum breakdown voltage is 28.0 V at IZ = 2 mA. Below this, reverse current remains ≤40 μA at VR = 28 V; full conduction begins above 28.0 V, with typical VZ = 30.0 V and maximum 32.0 V at the same test condition.
BZT52-C30J 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):
- 30 V
- Tolerance:
- ±6.7%
- Power - Max:
- 350 mW
- Impedance (Max) (Zzt):
- 40 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 21 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-C30J FAQ
1.How can I place an order for BZT52-C30J through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52-C30J 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-C30J reliable?
The price and inventory of BZT52-C30J are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52-C30J is usually 5 days.
3.What payment methods are accepted for BZT52-C30J?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52-C30J transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52-C30J?
BZT52-C30J orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52-C30J 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-C30J?
For technical support, including BZT52-C30J datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52-C30J requirements.
6.How does Aetrix verify that BZT52-C30J is sourced from the original manufacturer or authorized distributors?
All BZT52-C30J 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-C30J meets industry standards.
7.What is the process for return or replacement of BZT52-C30J?
All BZT52-C30J units undergo pre-shipment inspection (PSI). If there is an issue with BZT52-C30J, 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-C30J part is unused and in its original packaging.
Return procedure for BZT52-C30J:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZT52-C30J Tags
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