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Nexperia USA Inc. BZT5250H-B5V6X
- Part No.:
- BZT5250H-B5V6X
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT5250H-B5V6X.pdf
- Description:
- DIODE ZENER 5.6V 375MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:5,657
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Product details
Overview
BZT5250H-B5V6X from Nexperia is a low-current Zener diode in SOD123F package, designed for precision voltage regulation at 5.6 V nominal with ±2 % tolerance, specified at 50 µA test current, and rated for 830 mW total power dissipation; it serves in battery-powered sensor biasing, reference voltage generation, and low-power microcontroller reset circuits.
For engineers reviewing the BZT5250H-B5V6X datasheet, BZT5250H-B5V6X pinout, BZT5250H-B5V6X application, or BZT5250H-B5V6X equivalent, key selection criteria include its low-test-current Zener voltage stability (5.49–5.71 V), differential resistance ≤400 Ω at 5 mA, −2.0 mV/K temperature coefficient, and SOD123F thermal performance (Rth(j-sp) = 150 K/W).
Technical Context
This Zener diode operates in reverse breakdown to maintain stable voltage under low-bias conditions, with a specified Zener voltage of 5.49 V to 5.71 V at IZ = 50 µA and tighter regulation at higher currents (e.g., 5.55–5.65 V at IZ = 5 mA). Its differential resistance drops to 400 Ω at 5 mA, enabling improved regulation under small-signal load variations.
The device features an intentionally optimized leakage profile per AN90031 for fast switching and reduced noise, and exhibits a negative temperature coefficient of −2.0 mV/K - critical for temperature-compensated reference designs where drift must be minimized across −55 °C to +150 °C ambient range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 5.49 V to 5.71 V at IZ = 50 µA; ensures stable reference under ultra-low bias typical in coin-cell or energy-harvesting systems. |
| Tolerance | ±2 % (B-series); enables precise voltage setting without post-calibration in portable analog front-ends. |
| Differential Resistance (rdiff) | ≤400 Ω at IZ = 5 mA; limits output impedance for minimal load-induced voltage shift in feedback networks. |
| Temperature Coefficient (SZ) | −2.0 mV/K; supports predictable, linear drift compensation in temperature-critical references. |
| Total Power Dissipation (Ptot) | 830 mW at Tamb ≤ 25 °C on 1 cm² cathode pad; defines maximum continuous DC or pulsed power in compact PCB layouts. |
| Forward Voltage (VF) | ≤0.9 V at IF = 10 mA; ensures low-loss forward conduction during transient clamping or dual-role protection circuits. |
| Junction Temperature (Tj) | −55 °C to +150 °C; guarantees operation in extended industrial and automotive-adjacent environments. |
Pinout & Package
SOD123F surface-mount plastic package: 2.6 mm × 1.6 mm × 1.1 mm body, flat lead profile, cathode marked by bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K) | Cathode | Connected to regulated output node; marking bar identifies this terminal; requires thermal pad for 150 K/W Rth(j-sp). |
| 2 (A) | Anode | Connected to ground or lower-potential rail; forms reverse-biased junction for Zener operation. |
Key Features
| Feature | Design Value |
|---|---|
| Low-test-current specification | Rated at 50 µA - enables accurate regulation in nanoampere-bias sensor interfaces and wake-up circuitry. |
| Optimized leakage profile | Intentional minor leakage rise per AN90031 improves switching speed and reduces broadband noise in reference paths. |
| Thermal performance | Rth(j-sp) = 150 K/W to solder point - supports reliable operation on standard FR4 with single-sided copper. |
| Small-form-factor packaging | SOD123F footprint (2.6 × 1.6 mm) allows high-density placement in space-constrained wearables and IoT nodes. |
Applications
| Portable Sensor Biasing | Microcontroller Reset Reference |
|---|---|
Use Scenario: Providing stable 5.6 V bias to analog sensor ICs powered by 3.3 V or 5 V rails in battery-operated environmental monitors. IC Role / Device Role / Timing Role: Zener voltage reference establishing fixed bias point for op-amp input stages and ADC reference dividers. Use Value: ±2 % tolerance and −2.0 mV/K TC ensure <±15 mV drift over −20 °C to +70 °C, maintaining sensor accuracy without calibration. |
Use Scenario: Generating a clean, temperature-stable threshold for microcontroller POR (power-on reset) circuits in edge-node controllers. IC Role / Device Role / Timing Role: Precision shunt regulator defining reset assertion voltage independent of supply ripple or load transients. Use Value: 400 Ω rdiff minimizes hysteresis error, while 50 µA test current enables direct connection to weak pull-up sources without loading. |
| Low-Power Reference Divider | ESD-Suppressed Signal Clamping |
Use Scenario: Forming the upper leg of a resistive divider to generate 2.5 V or 1.25 V reference from 5 V supply in ultra-low-quiescent LDO feedback loops. IC Role / Device Role / Timing Role: Stable Zener element replacing larger, less efficient IC references in cost-sensitive consumer electronics. Use Value: 830 mW Ptot allows safe operation at 5 mA, delivering sufficient current to drive divider loads up to 1 kΩ without droop. |
Use Scenario: Parallel clamping of low-speed digital I/O lines (e.g., UART, I²C) against ESD transients while preserving signal integrity. IC Role / Device Role / Timing Role: Bidirectional protection device leveraging low VF (≤0.9 V) and controlled Zener knee for fast turn-on during surges. Use Value: Optimized leakage profile reduces capacitive loading (<120 pF at 0 V), preventing signal edge degradation on 100 kHz–1 MHz buses. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX384-B5V6 | Same 5.6 V ±2 % rating but in SOD323 (1.7 × 1.3 mm); 300 mW Ptot; rdiff = 40 Ω at 5 mA. | Better regulation at higher currents; unsuitable for >300 mW continuous dissipation or thermal-pad-dependent layouts. | Select when board space is critical and load current exceeds 2 mA with tight regulation required. |
| MMSZ5232BS | 5.6 V ±5 %; SOD123 package (same footprint); 500 mW Ptot; rdiff = 15 Ω at 20 mA. | Higher tolerance and lower power rating; optimized for general-purpose, non-precision use. | Select for cost-sensitive, non-critical biasing where ±5 % voltage variation is acceptable. |
Compared with BZT5250H-B5V6X, BZX384-B5V6 offers superior dynamic regulation but sacrifices thermal headroom, while MMSZ5232BS trades precision and power capability for lower unit cost in non-critical roles.
Availability
BZT5250H-B5V6X is available at Aetrix Electronics and suitable for portable sensor biasing, microcontroller reset reference, and low-power reference divider applications requiring stable component supply, consistent parametric performance, and long-term manufacturability.
Supply support for BZT5250H-B5V6X 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, with leadership in advanced packaging and automotive-qualified components.
The BZT5250H series belongs to Nexperia's low-current Zener portfolio, engineered specifically for precision voltage regulation in battery-constrained and thermally sensitive applications such as wearables, IoT endpoints, and portable instrumentation.
FAQ
What is the guaranteed Zener voltage range for BZT5250H-B5V6X at 50 µA test current?
The guaranteed Zener voltage is 5.49 V minimum to 5.71 V maximum at IZ = 50 µA and Tj = 25 °C, per Table 8 of the official Nexperia datasheet Rev. 1 (18 July 2024). This ±2 % tolerance band is validated across production lots and applies under specified thermal mounting conditions.
Can BZT5250H-B5V6X be used in place of a 5.6 V TL431-based shunt regulator?
No - the BZT5250H-B5V6X is a passive two-terminal Zener diode without internal amplification or adjustable output. It lacks the 2.5 V reference, programmable output, and 100 mA sink capability of the TL431. It is suitable only for simple, low-current (<5 mA), fixed-voltage regulation where active control is unnecessary.
What is the maximum continuous forward current rating for BZT5250H-B5V6X?
The absolute maximum forward current is 200 mA, per Table 5 (Limiting Values). However, sustained forward conduction is not its intended operating mode; the device is optimized for reverse-bias Zener regulation. Forward operation should remain brief and within VF ≤ 0.9 V at IF = 10 mA for reliability.
Does BZT5250H-B5V6X require a heatsink for 830 mW operation?
No external heatsink is required, but thermal design must follow Nexperia's recommended layout: a 1 cm² cathode-side copper pad on FR4 with single-sided tin plating. Under those conditions, Rth(j-sp) = 150 K/W enables safe 830 mW dissipation at Tamb ≤ 25 °C without exceeding Tj = 150 °C.
BZT5250H-B5V6X Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- BZT5250H
- Package/Case:
- SOD-123F
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 5.6 V
- Tolerance:
- ±2%
- Power - Max:
- 375 mW
- Impedance (Max) (Zzt):
- 40 Ohms
- Current - Reverse Leakage @ Vr:
- 2 µA @ 4 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123F
BZT5250H-B5V6X FAQ
1.How can I place an order for BZT5250H-B5V6X through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT5250H-B5V6X 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 BZT5250H-B5V6X reliable?
The price and inventory of BZT5250H-B5V6X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT5250H-B5V6X is usually 5 days.
3.What payment methods are accepted for BZT5250H-B5V6X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT5250H-B5V6X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT5250H-B5V6X?
BZT5250H-B5V6X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT5250H-B5V6X 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 BZT5250H-B5V6X?
For technical support, including BZT5250H-B5V6X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT5250H-B5V6X requirements.
6.How does Aetrix verify that BZT5250H-B5V6X is sourced from the original manufacturer or authorized distributors?
All BZT5250H-B5V6X 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 BZT5250H-B5V6X meets industry standards.
7.What is the process for return or replacement of BZT5250H-B5V6X?
All BZT5250H-B5V6X units undergo pre-shipment inspection (PSI). If there is an issue with BZT5250H-B5V6X, 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 BZT5250H-B5V6X part is unused and in its original packaging.
Return procedure for BZT5250H-B5V6X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZT5250H-B5V6X Tags
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MM5Z5V1ST1G
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