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Nexperia USA Inc. BZT52H-C47,115
- Part No.:
- BZT52H-C47,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT52H-C47,115.pdf
- Description:
- DIODE ZENER 47V 375MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:2,865
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Product details
Overview
BZT52H-C47,115 from Nexperia is a ±5 % tolerance Zener diode in SOD123F package, rated for 47 V nominal breakdown voltage at IZ = 2 mA, with 830 mW total power dissipation and 325 Ω maximum differential resistance - used for precision voltage reference and overvoltage protection in low-power analog circuits.
For engineers reviewing the BZT52H-C47,115 datasheet, BZT52H-C47,115 pinout, BZT52H-C47,115 application, or BZT52H-C47,115 equivalent, this page delivers verified Zener parameters, thermal performance under PCB-mount conditions, cathode/anode terminal mapping, and direct-fit alternatives for 47 V regulation in space-constrained designs.
Technical Context
This device operates in reverse-bias breakdown mode to maintain stable 47 V across its terminals within ±5 % tolerance, with temperature coefficient of +0.05 mV/K at IZ = 2 mA. Its SOD123F package enables surface-mount integration on FR4 PCBs with 1 cm² cathode pad for thermal management.
It supports non-repetitive peak reverse current up to 0.5 A (tp = 100 μs) and exhibits 40 W non-repetitive peak reverse power dissipation. Reverse leakage remains ≤90 μA at VR = 37.6 V, ensuring low standby power loss in regulation paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage (VZ) | 44.0 V to 50.0 V at IZ = 2 mA - defines usable regulation window for 47 V nominal reference |
| Tolerance | ±5 % - sets worst-case output deviation in open-loop voltage reference applications |
| Total Power Dissipation (Ptot) | 830 mW at Tamb ≤ 25 °C with 1 cm² cathode pad - determines maximum continuous current (IZ ≈ 17.7 mA) |
| Differential Resistance (rdif) | 325 Ω max at IZ = 2 mA - impacts regulation stiffness and load-induced voltage drift |
| Reverse Current (IR) | ≤90 μA at VR = 37.6 V - ensures minimal quiescent current in standby bias networks |
| Forward Voltage (VF) | ≤0.9 V at IF = 10 mA - enables use as polarity-sensitive clamp in bidirectional protection schemes |
| Junction Temperature (Tj) | −65 °C to +150 °C - supports operation in industrial ambient environments without derating below −40 °C |
Pinout & Package
SOD123F is a 2-lead surface-mount plastic package with 3.4–3.6 mm body length, 2.5–2.7 mm width, and 0.55–0.70 mm height; cathode marked by bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; marking bar identifies this terminal for correct PCB orientation |
| 2 | Anode (A) | Connected to ground or lower-potential rail; forms reverse-biased junction for Zener conduction |
Key Features
| Feature | Design Value |
|---|---|
| Wide voltage range coverage | 47 V nominal in E24 series - enables direct replacement across multiple legacy 47 V Zener designs |
| Thermal resistance (junction-to-solder point) | 70 K/W - allows efficient heat transfer via cathode pad to PCB copper, supporting sustained 830 mW operation |
| Low temperature coefficient | +0.05 mV/K at IZ = 2 mA - minimizes drift over −40 °C to +85 °C operating range |
| Non-repetitive surge capability | 0.5 A peak reverse current (100 μs pulse) - provides transient overvoltage resilience without external TVS |
| Surface-mount compatibility | SOD123F footprint per Fig. 12 - matches standard reflow soldering profiles and automated placement equipment |
Applications
| Industrial Sensor Signal Conditioning | USB Port Overvoltage Clamp |
|---|---|
Use Scenario: Stabilizing reference voltage for 12-bit ADC front-end in temperature transmitters. IC Role / Device Role / Timing Role: Zener diode providing fixed 47 V reference to op-amp bias network. Use Value: ±5 % tolerance and 325 Ω rdif limit ADC full-scale error to <0.8 % across 0–70 °C ambient. |
Use Scenario: Protecting USB 2.0 data lines from 50 V ESD events during hot-plug insertion. IC Role / Device Role / Timing Role: Reverse-biased clamping element shunting surge current to ground. Use Value: 0.5 A non-repetitive peak current rating absorbs IEC 61000-4-2 Level 4 surges without degradation. |
| Programmable Logic Controller (PLC) Input Protection | DC-DC Converter Feedback Divider |
Use Scenario: Safeguarding 24 V digital input stage against field-wiring faults up to 60 V. IC Role / Device Role / Timing Role: Shunt regulator absorbing excess voltage above 47 V threshold. Use Value: 830 mW Ptot sustains 12.5 mA fault current indefinitely, preventing upstream IC damage. |
Use Scenario: Setting output voltage of isolated flyback converter via optocoupler feedback loop. IC Role / Device Role / Timing Role: Precision voltage reference defining upper divider node. Use Value: +0.05 mV/K temperature coefficient maintains output regulation accuracy within ±1.2 % over full temp range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZT52C47-7-F | Same 47 V, ±5 %, SOD123 package but 500 mW Ptot; higher rdif (400 Ω) | Limited to lower-current regulation (<10.6 mA); unsuitable for sustained 830 mW loads | Select when board space permits larger thermal pad or when lower cost outweighs power headroom |
| MMSZ5270B-TP | 47 V, ±5 %, SOD-123 package; 500 mW Ptot, 350 Ω rdif, −65 °C to +150 °C rating | Lower surge rating (0.3 A vs. 0.5 A); identical thermal resistance but no 1 cm² pad requirement | Choose for multi-source procurement where Nexperia availability is constrained, accepting reduced surge margin |
Compared with BZT52C47-7-F and MMSZ5270B-TP, BZT52H-C47,115 delivers 66 % higher power handling and superior surge immunity - critical for industrial field interfaces where sustained overvoltage and ESD coexist.
Availability
BZT52H-C47,115 is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, PLC input protection, USB port overvoltage clamp, and DC-DC converter feedback divider requiring stable component supply with guaranteed long-term sourcing.
Supply support for BZT52H-C47,115 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 cost-effective, space-efficient voltage regulation and protection in consumer, industrial, and computing applications.
FAQ
What is the maximum continuous Zener current for BZT52H-C47,115 at 70 °C ambient?
At 70 °C ambient, derating applies: Ptot reduces linearly from 830 mW at 25 °C to zero at 150 °C. At 70 °C, allowable power is 573 mW, yielding max continuous IZ = 573 mW ÷ 47 V ≈ 12.2 mA. This assumes 1 cm² cathode pad per datasheet condition [3].
Does BZT52H-C47,115 meet automotive qualification standards?
No. Per Revision History section 13, BZT52H series was changed to non-automotive qualification in Rev. 7 (Jan 2023). Automotive-grade alternatives (e.g., BZT52H-Q series) are available separately and require explicit ordering with "-Q" suffix.
How is the cathode identified on the SOD123F package?
The cathode is marked by a visible bar on the top surface of the SOD123F package, aligned with Pin 1 per Table 2 pinning diagram. The bar corresponds to the cathode terminal (K), and the unmarked end is the anode (A).
Can BZT52H-C47,115 be used in parallel for higher power dissipation?
No. Zener diodes exhibit negative temperature coefficient variation; paralleling causes current hogging and thermal runaway. For >830 mW, use a single higher-rated device or active regulation - not parallel Zeners.
BZT52H-C47,115 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):
- 47 V
- Tolerance:
- ±5%
- Power - Max:
- 375 mW
- Impedance (Max) (Zzt):
- 90 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 32.9 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-C47,115 FAQ
1.How can I place an order for BZT52H-C47,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52H-C47,115 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-C47,115 reliable?
The price and inventory of BZT52H-C47,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52H-C47,115 is usually 5 days.
3.What payment methods are accepted for BZT52H-C47,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52H-C47,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52H-C47,115?
BZT52H-C47,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52H-C47,115 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-C47,115?
For technical support, including BZT52H-C47,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52H-C47,115 requirements.
6.How does Aetrix verify that BZT52H-C47,115 is sourced from the original manufacturer or authorized distributors?
All BZT52H-C47,115 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-C47,115 meets industry standards.
7.What is the process for return or replacement of BZT52H-C47,115?
All BZT52H-C47,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZT52H-C47,115, 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-C47,115 part is unused and in its original packaging.
Return procedure for BZT52H-C47,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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