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Nexperia USA Inc. BZT52H-C20,115
- Part No.:
- BZT52H-C20,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT52H-C20,115.pdf
- Description:
- DIODE ZENER 20V 375MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:1,960
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Product details
Overview
BZT52H-C20,115 from Nexperia is a ±5 % tolerance Zener diode in SOD123F package, rated for 20 V nominal breakdown voltage at IZ = 5 mA, with 830 mW total power dissipation and 220 Ω maximum differential resistance - used for precision voltage reference and overvoltage clamping in low-power analog signal conditioning circuits.
For engineers reviewing the BZT52H-C20,115 datasheet, BZT52H-C20,115 pinout, BZT52H-C20,115 application, or BZT52H-C20,115 equivalent, this page delivers verified Zener parameters, thermal resistance (Rth(j-sp) = 70 K/W), reverse current (IR ≤ 0.05 μA at VR = 15 V), temperature coefficient (+14 mV/K), and cathode/anode terminal mapping per official Nexperia Rev. 7 specification.
Technical Context
This Zener diode operates in reverse-bias breakdown mode with a tightly controlled 20 V nominal regulation point, exhibiting a positive temperature coefficient of +14 mV/K at IZ = 5 mA - enabling stable reference generation across industrial temperature ranges (−65 °C to +150 °C).
Its SOD123F package provides low thermal resistance to solder point (70 K/W) and supports surface-mount reflow only, with cathode identified by a marking bar on the device body and validated 2-pin anode/cathode polarity per Table 2 of the datasheet.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VZ | 18.8 V to 21.2 V at IZ = 5 mA - defines usable regulation window for 20 V rail stabilization |
| Tolerance | ±5 % - specifies worst-case deviation from nominal 20 V, critical for reference accuracy budgets |
| Differential Resistance rdif | 220 Ω max at IZ = 5 mA - determines output impedance and load regulation sensitivity |
| Total Power Dissipation Ptot | 830 mW at Tamb ≤ 25 °C - sets maximum continuous DC power handling on standard FR4 PCB |
| Reverse Current IR | ≤ 0.05 μA at VR = 15 V - ensures minimal leakage below breakdown, preserving low-power standby integrity |
| Temperature Coefficient SZ | +14 mV/K at IZ = 5 mA - quantifies voltage drift per degree, essential for thermal stability analysis |
| Forward Voltage VF | 0.9 V max at IF = 10 mA - defines conduction threshold in forward bias, relevant for ESD protection path design |
Pinout & Package
SOD123F is a 2-lead surface-mount plastic package with 3.4–3.6 mm length, 2.5–2.7 mm width, and 1.0–1.2 mm height; cathode marked by a visible bar on the top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; polarity must be observed to ensure proper reverse-bias operation |
| 2 | Anode (A) | Connected to ground or lower-potential rail; forms current path during Zener conduction |
Key Features
| Feature | Design Value |
|---|---|
| Three-tolerance series | ±1 %, ±2 %, and ±5 % options enable cost/performance trade-off selection without redesign |
| Wide voltage range | 2.4 V to 75 V (E24) supports single-family coverage across most low-to-medium voltage regulation needs |
| Low thermal resistance | Rth(j-sp) = 70 K/W enables reliable operation up to 150 °C junction temperature with minimal derating |
| Small footprint | SOD123F (3.5 × 2.6 mm) saves board space versus DO-35 or SOD-123, ideal for compact consumer and IoT designs |
| Non-repetitive surge rating | IZSM = 1.5 A (100 μs pulse) allows transient overvoltage absorption without failure |
Applications
| Power Supply Reference | Overvoltage Clamp |
|---|---|
|
Use Scenario: Providing stable 20 V reference for ADC voltage dividers and op-amp bias networks in battery-powered sensor nodes. IC Role / Device Role / Timing Role: Zener diode operating in reverse breakdown to fix reference potential relative to ground. Use Value: ±5 % tolerance and +14 mV/K TC allow predictable error budgeting within 0.5 % total drift over −40 °C to +85 °C ambient. |
Use Scenario: Protecting microcontroller GPIO pins from 24 V field transients in industrial PLC input modules. IC Role / Device Role / Timing Role: Clamping element shunting excess energy to ground when reverse voltage exceeds 21.2 V. Use Value: 1.5 A non-repetitive surge rating absorbs 100 μs transients without degradation, preserving system reliability. |
| Signal Level Shifting | Low-Power Bias Generator |
|
Use Scenario: Translating 3.3 V logic signals to 20 V interface levels for driving external analog switches in test equipment. IC Role / Device Role / Timing Role: Forward-biased Zener used as voltage offset source between two signal domains. Use Value: 0.9 V max forward drop at 10 mA ensures precise 19.1 V level shift with minimal current dependency. |
Use Scenario: Generating a stable 20 V bias for JFET amplifier stages in portable audio preamplifiers. IC Role / Device Role / Timing Role: Passive voltage regulator establishing quiescent operating point for discrete analog circuitry. Use Value: 220 Ω dynamic resistance minimizes supply-induced distortion under 100 μA load variation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZT52C20,115 | Same SOD123F package and 20 V rating but ±5 % tolerance (identical); differs only in marking code and internal lot traceability | No functional difference; fully interchangeable in all designs requiring ±5 % 20 V Zener regulation | Select when sourcing flexibility or dual-source qualification is required without design change |
| MMBZ5242B-7-F | 20 V ±5 % in SOT-23 package; higher rdif (500 Ω) and lower Ptot (350 mW); Rth(j-a) = 330 K/W | Less suitable for high-current or thermally constrained layouts due to inferior thermal performance and regulation stiffness | Acceptable only for ultra-low-power (<1 mA) references where board space is more critical than regulation accuracy |
Compared with BZT52H-C20,115, the BZT52C20,115 offers identical electrical and thermal behavior, while MMBZ5242B-7-F trades off regulation precision and thermal robustness for smaller footprint - making the H-series optimal for industrial-grade stability and power handling.
Availability
BZT52H-C20,115 is available at Aetrix Electronics and suitable for voltage reference, overvoltage protection, and signal level shifting applications requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for BZT52H-C20,115 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 Europe and Asia.
The BZT52H series belongs to Nexperia's general-purpose Zener diode product line, engineered for cost-effective, space-efficient voltage regulation and clamping in consumer, industrial, and computing applications - emphasizing thermal robustness and parametric consistency.
FAQ
What is the maximum continuous reverse current the BZT52H-C20,115 can handle at 25 °C ambient?
The device has no specified maximum continuous reverse current; instead, its safe operating limit is defined by power dissipation. At 25 °C ambient, it supports up to 41.5 mA continuous reverse current (830 mW ÷ 20 V) before exceeding Ptot, assuming ideal heat sinking. Derating is required above 25 °C per the 70 K/W Rth(j-sp).
Does the BZT52H-C20,115 meet automotive AEC-Q200 requirements?
No. Per Nexperia's Rev. 7 datasheet Section 13, the BZT52H series is explicitly designated as non-automotive qualified. Automotive alternatives are available under the -Q suffix (e.g., BZT52H-C20-Q), which undergo extended temperature cycling, humidity testing, and failure analysis per AEC-Q200.
How is cathode polarity identified on the BZT52H-C20,115 package?
The cathode is marked by a distinct bar printed on the top surface of the SOD123F body, aligned with Pin 1 per Table 2 of the datasheet. This marking corresponds to the cathode terminal in the simplified outline diagram (Figure 11), and must be oriented toward the regulated node during PCB layout.
Can the BZT52H-C20,115 be used in forward conduction mode for voltage dropping?
Yes - its forward voltage is specified as ≤0.9 V at 10 mA (Table 1), making it usable as a low-drop fixed bias element. However, forward conduction lacks regulation; voltage varies with current and temperature, so it should only be applied where precision is not required, such as crude level shifting or LED current limiting with series resistance.
BZT52H-C20,115 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):
- 20 V
- Tolerance:
- ±5%
- Power - Max:
- 375 mW
- Impedance (Max) (Zzt):
- 20 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 14 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-C20,115 FAQ
1.How can I place an order for BZT52H-C20,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52H-C20,115 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-C20,115 reliable?
The price and inventory of BZT52H-C20,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52H-C20,115 is usually 5 days.
3.What payment methods are accepted for BZT52H-C20,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52H-C20,115 transactions.
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4.How is shipping managed for BZT52H-C20,115?
BZT52H-C20,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52H-C20,115 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-C20,115?
For technical support, including BZT52H-C20,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52H-C20,115 requirements.
6.How does Aetrix verify that BZT52H-C20,115 is sourced from the original manufacturer or authorized distributors?
All BZT52H-C20,115 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-C20,115 meets industry standards.
7.What is the process for return or replacement of BZT52H-C20,115?
All BZT52H-C20,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZT52H-C20,115, 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-C20,115 part is unused and in its original packaging.
Return procedure for BZT52H-C20,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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