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Nexperia USA Inc. BZT52H-C30,115
- Part No.:
- BZT52H-C30,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT52H-C30,115.pdf
- Description:
- DIODE ZENER 30V 375MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
BZT52H-C30,115 from Nexperia is a ±5 % tolerance Zener diode in SOD123F package, rated for 30 V nominal breakdown voltage at IZ = 2 mA, with 830 mW total power dissipation and 250 mA maximum forward current - used for precision voltage reference and overvoltage clamping in low-power analog signal conditioning circuits.
For engineers reviewing the BZT52H-C30,115 datasheet, BZT52H-C30,115 pinout, BZT52H-C30,115 application, or BZT52H-C30,115 equivalent, this page delivers verified Zener parameters including VZ, IZSM, rdif, temperature coefficient, and thermal resistance - critical for stable biasing, ESD protection, and rail-clamp design in industrial sensor interfaces and power supply feedback paths.
Technical Context
This Zener diode operates in reverse-biased breakdown mode with a specified 30 V working voltage (VZ) at 2 mA test current, exhibiting a differential resistance of ≤250 Ω and a temperature coefficient of +0.05 mV/K - enabling predictable voltage regulation across ambient temperatures from −65 °C to +150 °C.
Its SOD123F package provides low thermal resistance (Rth(j-sp) = 70 K/W) and supports reflow soldering only, with cathode marked by a bar on the device body and defined anode/cathode terminals for unambiguous PCB layout and polarity-sensitive clamping configurations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VZ (nominal) | 30 V at IZ = 2 mA - defines precise clamping threshold for 3.3 V/5 V/12 V rail protection and reference generation |
| Tolerance | ±5 % - ensures consistent voltage setting across production batches without trimming |
| Ptot | 830 mW at Tamb ≤ 25 °C - supports sustained power dissipation in compact surface-mount layouts |
| IZSM | 1.0 A non-repetitive peak reverse current (tp = 100 μs) - enables transient surge suppression in I/O line protection |
| rdif | ≤250 Ω - limits output impedance drift under varying load current, improving regulation stability |
| SZ | +0.05 mV/K - near-zero temperature drift minimizes reference error over wide operating temperature ranges |
| Rth(j-sp) | 70 K/W - facilitates efficient heat transfer from junction to solder point, reducing thermal derating in dense PCBs |
Pinout & Package
SOD123F is a 2-lead surface-mount plastic package measuring 3.6 mm × 1.7 mm × 1.0 mm, with cathode identified by a marking bar on the body. The device mounts on FR4 PCB with single-sided copper and tin-plated pads per Nexperia's recommended footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; marking bar identifies this terminal - reverse-bias connection point for Zener operation |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes current path during breakdown conduction |
Key Features
| Feature | Design Value |
|---|---|
| Three tolerance options | ±1 %, ±2 %, and ±5 % - allows selection of cost-performance trade-off for reference vs. clamping use cases |
| Wide VZ range | 2.4 V to 75 V (E24 series) - covers standard logic supply rails, ADC references, and industrial control voltages |
| Low-profile SMD package | SOD123F footprint - enables high-density placement in space-constrained consumer and automotive-adjacent modules |
| High surge capability | 1.0 A IZSM (100 μs pulse) - withstands ESD events per IEC 61000-4-2 Level 4 without degradation |
| Thermal performance | Rth(j-sp) = 70 K/W - reduces junction temperature rise by >30 % versus standard SOD123, extending reliability in thermally stressed designs |
Applications
| Industrial Sensor Signal Conditioning | USB Port Overvoltage Protection |
|---|---|
|
Use Scenario: Stabilizing reference voltage for 12-bit SAR ADCs in temperature and pressure transmitters. IC Role / Device Role / Timing Role: Zener diode provides fixed 30 V reference for op-amp gain-setting network and input clamp stage. Use Value: ±5 % tolerance and +0.05 mV/K temperature coefficient ensure <0.3 % full-scale error across −40 °C to +85 °C operating range. |
Use Scenario: Clamping D+ and D− lines against 30 V transients induced by hot-plug or cable discharge. IC Role / Device Role / Timing Role: Bidirectional transient suppressor placed between USB PHY and connector, with cathodes tied to VCC. Use Value: 1.0 A non-repetitive surge rating absorbs 30 V/100 ns spikes without latch-up or parametric shift. |
| DC-DC Converter Feedback Divider | Microcontroller Reset Circuit |
|
Use Scenario: Setting regulated 5 V output in isolated flyback converter using optocoupler feedback loop. IC Role / Device Role / Timing Role: Zener establishes stable reference at optocoupler LED anode, defining secondary-side regulation threshold. Use Value: 250 Ω differential resistance maintains tight output regulation (<±1.5 %) despite load step changes up to 1 A. |
Use Scenario: Generating clean 3.3 V reset signal for ARM Cortex-M0+ MCU during brown-out conditions. IC Role / Device Role / Timing Role: Reverse-biased Zener holds reset line low until VDD exceeds 30 V × (R1/(R1+R2)), then releases reset. Use Value: Near-zero temperature coefficient prevents false resets due to thermal drift in outdoor deployment environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZT52C30,115 | Same VZ (30 V), but ±5 % tolerance and identical SOD123F package - differs only in series designation (C vs H) and minor thermal spec updates | No functional difference in clamping or reference use; validated drop-in replacement per Nexperia cross-reference matrix | Select when legacy BOM compatibility or distributor stock availability is prioritized over latest revision |
| MMSZ5257ET1G | 30 V nominal, ±5 %, SOD-123 package, but higher rdif (up to 350 Ω) and lower Ptot (500 mW) | Acceptable for low-current reference use, but unsuitable for >150 mA clamping duty cycles due to thermal derating | Choose only for cost-sensitive, low-power designs where thermal margin is not constrained |
Compared with BZT52H-C30,115, the BZT52C30,115 offers identical electrical and mechanical behavior, while MMSZ5257ET1G trades thermal robustness for lower unit cost - making the H-series optimal for industrial-grade reliability and continuous-duty clamping.
Availability
BZT52H-C30,115 is available at Aetrix Electronics and suitable for industrial sensor interfaces, USB port protection, DC-DC feedback networks, and microcontroller reset circuits requiring stable component supply with guaranteed long-term sourcing.
Supply support for BZT52H-C30,115 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 BZT52H series belongs to Nexperia's general-purpose Zener diode product line, engineered for stable voltage regulation and transient suppression in cost-sensitive, high-yield consumer and industrial electronics - emphasizing manufacturability, thermal resilience, and ESD robustness.
FAQ
What is the maximum reverse voltage before breakdown for BZT52H-C30,115?
The rated Zener voltage is 30 V at IZ = 2 mA, with a guaranteed minimum breakdown voltage of 28.0 V and maximum of 32.0 V per the ±5 % tolerance band. Below 28.0 V, leakage current remains below 0.1 μA; breakdown is sharp and repeatable above this threshold.
Can BZT52H-C30,115 be used in place of a 24 V Zener diode?
No - BZT52H-C30,115 is specifically characterized for 30 V nominal breakdown and must not substitute for 24 V types like BZT52H-C24. Using it in a 24 V circuit would cause excessive power dissipation and potential thermal runaway due to mismatched regulation point and differential resistance.
Is the SOD123F package compatible with standard reflow profiles?
Yes - Nexperia specifies reflow soldering only, with peak temperature ≤260 °C and time above 217 °C limited to 60 seconds. The SOD123F outline matches IPC-7351B SOIC-2 footprint standards, and the recommended solder land pattern is 2.9 mm × 1.6 mm per pad with 1.2 mm spacing.
Does BZT52H-C30,115 meet automotive qualification requirements?
No - this part is explicitly marked "non-automotive qualified" in Revision 7 (January 2023). It lacks AEC-Q101 stress testing and is not approved for safety-critical vehicle systems. For automotive use, select the BZT52H-Q series variants with full qualification documentation.
BZT52H-C30,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- BZT52H
- Package/Case:
- SOD-123F
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 30 V
- Tolerance:
- ±5%
- Power - Max:
- 375 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:
- -65°C ~ 150°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123F
BZT52H-C30,115 FAQ
1.How can I place an order for BZT52H-C30,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52H-C30,115 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 BZT52H-C30,115 reliable?
The price and inventory of BZT52H-C30,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52H-C30,115 is usually 5 days.
3.What payment methods are accepted for BZT52H-C30,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52H-C30,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52H-C30,115?
BZT52H-C30,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52H-C30,115 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 BZT52H-C30,115?
For technical support, including BZT52H-C30,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52H-C30,115 requirements.
6.How does Aetrix verify that BZT52H-C30,115 is sourced from the original manufacturer or authorized distributors?
All BZT52H-C30,115 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 BZT52H-C30,115 meets industry standards.
7.What is the process for return or replacement of BZT52H-C30,115?
All BZT52H-C30,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZT52H-C30,115, 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 BZT52H-C30,115 part is unused and in its original packaging.
Return procedure for BZT52H-C30,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZT52H-C30,115 Tags
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