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Nexperia USA Inc. BZT52H-C27,115
- Part No.:
- BZT52H-C27,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT52H-C27,115.pdf
- Description:
- DIODE ZENER 27V 375MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:1,955
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Product details
Overview
BZT52H-C27,115 from Nexperia is a ±5 % tolerance Zener voltage regulator diode in SOD123F package, rated for 27 V nominal breakdown voltage at IZ = 2 mA, 830 mW total power dissipation, and 150 °C maximum junction temperature. It provides stable reference voltage in low-power supply regulation and overvoltage protection circuits for industrial control modules.
For engineers reviewing the BZT52H-C27,115 datasheet, BZT52H-C27,115 pinout, BZT52H-C27,115 application, or BZT52H-C27,115 equivalent, key selection criteria include Zener voltage tolerance (±5 %), differential resistance (250 Ω max), reverse current (40 μA max at 1 V), thermal resistance (150 K/W junction-to-solder point), and SOD123F surface-mount compatibility with standard reflow profiles.
Technical Context
This Zener diode operates in reverse-biased breakdown mode to maintain a stable 27 V reference across its terminals under regulated current conditions. Its design supports precision voltage clamping and low-drift biasing where moderate accuracy and compact footprint are prioritized over ultra-low temperature coefficient.
It features a cathode-anode two-terminal structure with marking bar indicating cathode polarity, optimized for FR4 PCB mounting with 1 cm² cathode pad for thermal performance. The device is non-automotive qualified and intended for general-purpose industrial and consumer electronics applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 25.1 V to 28.9 V at IZ = 2 mA - defines usable regulation range under nominal test current |
| Differential Resistance (rdif) | ≤ 250 Ω - limits output voltage variation under load current changes |
| Reverse Current (IR) | ≤ 40 μA at VR = 1 V - ensures low leakage in standby or high-impedance bias networks |
| Total Power Dissipation (Ptot) | 830 mW at Tamb ≤ 25 °C - sets maximum continuous DC power handling on standard FR4 PCB |
| Thermal Resistance (Rth(j-sp)) | 150 K/W - quantifies junction-to-solder-point thermal path efficiency for thermal design margining |
| Forward Voltage (VF) | ≤ 0.9 V at IF = 10 mA - confirms low conduction loss when used in forward-biased protection paths |
| Non-repetitive Peak Reverse Current (IZSM) | 1.0 A for tp = 100 μs - enables transient surge suppression capability in clamp circuits |
Pinout & Package
SOD123F is a small flat-lead surface-mount plastic package with 2 terminals, 3.4–3.6 mm length, 1.5–1.7 mm width, and 0.55–0.70 mm height. Cathode marked by bar on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; reverse-bias voltage applied here to enable Zener conduction |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes current path during regulation |
Key Features
| Feature | Design Value |
|---|---|
| ±5 % Zener voltage tolerance | Enables cost-effective voltage reference in non-critical regulation without trimming circuitry |
| 830 mW power rating | Supports up to ~30 mA average Zener current at 27 V, suitable for sensor biasing and signal conditioning |
| SOD123F package footprint | Occupies only 2.8 × 4.4 mm PCB area with 1.2 mm pad spacing - ideal for space-constrained designs |
| 150 °C maximum junction temperature | Allows operation in extended ambient environments (e.g., industrial enclosures) with proper thermal layout |
| Low 40 μA reverse leakage at 1 V | Minimizes quiescent current draw in battery-powered or always-on monitoring circuits |
Applications
| Power Supply Reference | Overvoltage Clamp |
|---|---|
Use Scenario: Providing stable 27 V reference for ADC voltage scaling in programmable logic controller (PLC) analog input modules. IC Role / Device Role / Timing Role: Zener diode acts as passive shunt reference, absorbing excess current to hold voltage steady at 27 V. Use Value: Enables accurate 12-bit analog measurement within ±0.5 % full-scale error without active regulator overhead. |
Use Scenario: Protecting microcontroller GPIO pins from 30 V transients induced by relay coil flyback in HVAC control boards. IC Role / Device Role / Timing Role: Clamps voltage spike to 28.9 V maximum, diverting surge current away from sensitive inputs. Use Value: Prevents latch-up and permanent damage while maintaining system uptime without external TVS diode cost. |
| Signal Level Shifting | Current Source Bias |
Use Scenario: Generating a fixed 27 V bias for op-amp comparator hysteresis network in motor phase detection circuit. IC Role / Device Role / Timing Role: Supplies precise threshold voltage to define switching window independent of supply rail fluctuations. Use Value: Reduces false triggering caused by 10 % supply ripple, improving position sensing reliability. |
Use Scenario: Setting constant current for LED status indicator in medical device front panel with 24 V rail. IC Role / Device Role / Timing Role: Forms upper leg of two-resistor current source with series resistor, regulating LED drive current. Use Value: Maintains consistent LED brightness across 15–30 V input range with <5 % current variation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZT52C27-7-F | Same 27 V nominal, ±5 % tolerance, but in SOD123 package (not SOD123F); 1000 mW Ptot rating | Higher power handling allows 37 mA continuous current; slightly larger footprint (3.7 × 1.6 mm vs. 3.5 × 1.6 mm) | Select when higher thermal margin is needed and board space permits SOD123 outline |
| MMSZ5256ET1G | 27 V nominal, ±5 %, SOD123 package, 500 mW Ptot, 300 Ω rdif max | Lower power rating and higher dynamic impedance reduce regulation stability under varying loads | Choose only for legacy compatibility where 500 mW suffices and existing footprint matches |
Compared with BZT52H-C27,115, BZT52C27-7-F offers greater thermal headroom in identical function but requires footprint revision, while MMSZ5256ET1G trades regulation precision and power capacity for broader distributor availability - making the Nexperia part optimal for new designs demanding SOD123F compactness and 830 mW capability.
Availability
BZT52H-C27,115 is available at Aetrix Electronics and suitable for industrial control systems, sensor interface modules, and embedded power management circuits requiring stable component supply and long-term obsolescence planning.
Supply support for BZT52H-C27,115 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, designed specifically for cost-sensitive, space-constrained voltage regulation and clamping in industrial, consumer, and computing applications - emphasizing manufacturability, consistency, and SMD process compatibility.
FAQ
What is the maximum continuous Zener current for BZT52H-C27,115 at 25 °C ambient?
At Tamb = 25 °C and with recommended FR4 PCB layout (1 cm² cathode pad), the device supports up to 30.7 mA continuous Zener current, calculated from Ptot = 830 mW ÷ VZ(max) = 830 mW ÷ 28.9 V. Derating is required above 25 °C per the 150 K/W junction-to-solder-point thermal resistance.
Can BZT52H-C27,115 be used in automotive applications?
No. This part is explicitly non-automotive qualified per Nexperia's revision history (Rev. 7, January 2023), which states that BZT52H series products changed to non-automotive qualification. Automotive alternatives must be selected from Nexperia's -Q qualified portfolio, such as PZT52H-C27-Q series.
How does the ±5 % tolerance affect regulation accuracy in a 27 V reference circuit?
The ±5 % tolerance means the actual Zener voltage falls between 25.1 V and 28.9 V at IZ = 2 mA. In practice, this results in ±3.4 V worst-case deviation from nominal, limiting use to applications where absolute voltage accuracy is secondary to cost and size - e.g., coarse overvoltage detection rather than precision DAC reference.
What is the significance of the 'C' in BZT52H-C27,115?
The 'C' denotes the ±5 % Zener voltage tolerance grade within the BZT52H series. 'A' indicates ±1 %, 'B' indicates ±2 %, and 'C' indicates approximately ±5 %. This grading directly determines the allowable VZ spread (25.1 V to 28.9 V) and is laser-trimmed during production.
BZT52H-C27,115 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):
- 27 V
- Tolerance:
- ±5%
- Power - Max:
- 375 mW
- Impedance (Max) (Zzt):
- 40 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 18.9 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-C27,115 FAQ
1.How can I place an order for BZT52H-C27,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52H-C27,115 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-C27,115 reliable?
The price and inventory of BZT52H-C27,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52H-C27,115 is usually 5 days.
3.What payment methods are accepted for BZT52H-C27,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52H-C27,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52H-C27,115?
BZT52H-C27,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52H-C27,115 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-C27,115?
For technical support, including BZT52H-C27,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52H-C27,115 requirements.
6.How does Aetrix verify that BZT52H-C27,115 is sourced from the original manufacturer or authorized distributors?
All BZT52H-C27,115 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-C27,115 meets industry standards.
7.What is the process for return or replacement of BZT52H-C27,115?
All BZT52H-C27,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZT52H-C27,115, 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-C27,115 part is unused and in its original packaging.
Return procedure for BZT52H-C27,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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