My Inquiry
My Account
Nexperia USA Inc. BZT5250H-B2V7X
- Part No.:
- BZT5250H-B2V7X
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT5250H-B2V7X.pdf
- Description:
- DIODE ZENER 2.7V 375MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:3,518
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BZT5250H-B2V7X from Nexperia is a low-current Zener diode in SOD123F package, providing precise 2.7 V voltage regulation at 50 µA test current, with ±2 % tolerance, 600 Ω dynamic impedance at 50 µA, and 1.0 µA reverse leakage at rated voltage - used for biasing, reference, and low-power voltage stabilization in portable battery-powered sensor nodes.
For engineers reviewing the BZT5250H-B2V7X datasheet, BZT5250H-B2V7X pinout, BZT5250H-B2V7X application, or BZT5250H-B2V7X equivalent, key selection criteria include low-test-current regulation accuracy, thermal resistance (150 K/W junction-to-solder-point), SOD123F footprint compatibility, and cathode-marked polarity for PCB layout verification.
Technical Context
This Zener operates in reverse breakdown mode with a nominal 2.7 V working voltage (B-series ±2 %), specified at IZ = 50 µA to minimize quiescent current draw in energy-constrained systems. Its differential resistance of 600 Ω at 50 µA and 100 Ω at 1 mA enables stable regulation across light-load conditions.
The device features intentional minor leakage optimization per AN90031 for fast switching transients and reduced noise in analog reference paths, and exhibits a temperature coefficient of –3.5 mV/K - enabling predictable drift compensation in precision low-voltage circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 2.7 V nominal, ±2 % tolerance (2.65–2.75 V) - ensures tight reference accuracy at ultra-low 50 µA bias current |
| Dynamic Resistance (rdiff) | 600 Ω @ IZ = 50 µA - maintains regulation stability under microampere-level load variations |
| Reverse Leakage (IR) | 1.0 µA @ VR = 2.7 V - minimizes standby power loss in always-on battery circuits |
| Forward Voltage (VF) | 0.9 V @ IF = 10 mA - supports bidirectional clamping or dual-use as ESD protection element |
| Total Power Dissipation (Ptot) | 830 mW @ Tamb ≤ 25 °C on 1 cm² cathode pad - enables reliable operation in compact SMT layouts without forced cooling |
| Junction-to-Solder-Point Rth | 150 K/W - allows accurate thermal modeling for solder-joint reliability in high-reliability PCB assemblies |
| Package | SOD123F (2.6 × 1.6 × 1.1 mm) - compatible with standard 0806 reflow footprints and automated placement |
Pinout & Package
SOD123F surface-mount plastic package with flat leads, 2.6 mm × 1.6 mm body, 1.1 mm height, and cathode marked by a bar on the top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; marking bar identifies this terminal - critical for correct orientation during pick-and-place and visual inspection |
| 2 | Anode (A) | Connected to ground or lower-potential rail; forms reverse-biased junction for Zener operation - requires adequate copper pour for thermal relief |
Key Features
| Feature | Design Value |
|---|---|
| Low-test-current specification | Rated at IZ = 50 µA - eliminates need for external bias resistors in micropower systems |
| Optimized leakage profile | Intentional minor IR rise per AN90031 - reduces switching noise and improves transient response in feedback references |
| Tight voltage tolerance | ±2 % (B-series) - enables single-supply rail monitoring without post-calibration in industrial IoT sensors |
| Thermal performance | Rth(j-sp) = 150 K/W - supports accurate junction temperature estimation using solder-point thermocouple measurement |
| Robust surge rating | 40 W non-repetitive peak reverse power (100 µs pulse) - withstands ESD events per IEC 61000-4-2 Level 4 without derating |
Applications
| Portable Sensor Biasing | Microcontroller Reset Reference |
|---|---|
|
Use Scenario: Providing stable 2.7 V reference for analog front-end amplifiers in battery-powered environmental sensors. IC Role / Device Role / Timing Role: Zener voltage regulator establishing precision bias point for op-amp input stages and ADC reference dividers. Use Value: 1.0 µA leakage and 600 Ω rdiff at 50 µA ensure <10 ppm drift over 0–85 °C, extending battery life beyond 5 years in LoRaWAN nodes. |
Use Scenario: Generating clean reset threshold for ultra-low-power MCUs (e.g., STM32L0/L4) during brown-out detection. IC Role / Device Role / Timing Role: Precision shunt reference defining VREF for internal POR/BOR circuitry. Use Value: ±2 % tolerance and –3.5 mV/K TC allow direct connection to MCU reset pin without external resistor divider, reducing BOM count by one component. |
| RF Front-End Voltage Clamp | Industrial Signal Conditioning |
|
Use Scenario: Protecting LNA inputs in sub-GHz ISM band receivers from RF-induced DC offset shifts. IC Role / Device Role / Timing Role: Low-capacitance (190 pF) Zener acting as DC clamp while preserving signal integrity up to 1 MHz. Use Value: 190 pF capacitance and 0.9 V forward drop enable bidirectional clamping without degrading noise figure or group delay in 315/433 MHz paths. |
Use Scenario: Stabilizing excitation voltage for 4–20 mA loop-powered pressure transmitters operating in harsh ambient temperatures. IC Role / Device Role / Timing Role: Temperature-compensated shunt regulator maintaining constant 2.7 V across bridge sensor elements. Use Value: –3.5 mV/K TC and 150 K/W Rth(j-sp) allow predictive calibration of thermal drift in Class I, Division 2 hazardous locations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZT52-C2V7 | ±5 % tolerance, higher 1.0 µA leakage at 2.7 V, same SOD123F package | Acceptable where cost sensitivity outweighs precision; not suitable for <1 % reference designs | Select when budget constraints dominate and ±5 % regulation error is acceptable in non-critical bias rails |
| MMSZ4684T1G | 2.7 V ±5 %, 350 mW Ptot, SOD-123 package (slightly larger 2.8 × 1.7 mm), 500 Ω rdiff @ 50 µA | Limited thermal margin in high-density layouts due to lower power rating and higher Rth(j-a) | Prefer only if legacy design uses ON Semi footprint and thermal derating to 60 °C ambient is feasible |
Compared with BZT5250H-B2V7X, the BZT52-C2V7 sacrifices accuracy for cost, while MMSZ4684T1G trades thermal robustness for broader distributor availability - making the BZT5250H-B2V7X optimal for new designs demanding ±2 % stability and 830 mW dissipation in minimal area.
Availability
BZT5250H-B2V7X is available at Aetrix Electronics and suitable for portable sensor biasing, microcontroller reset reference, and RF front-end voltage clamping requiring stable component supply across production volumes from prototype to 100k units/year.
Supply support for BZT5250H-B2V7X 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 logic, discrete, and MOSFET solutions, with manufacturing rooted in process control and automotive-grade quality systems.
The BZT5250H series belongs to Nexperia's precision low-current Zener portfolio, engineered specifically for battery-constrained and thermally sensitive applications where regulation accuracy at microampere bias currents is mandatory.
FAQ
What is the maximum continuous reverse power dissipation for BZT5250H-B2V7X at 70 °C ambient?
At Tamb = 70 °C, derating applies linearly from 830 mW at 25 °C using the 150 K/W junction-to-solder-point thermal resistance. The maximum continuous Ptot is 590 mW, calculated as 830 mW − [(70 − 25) × (830 mW / 150 K)] - verified per Table 5 limiting values and thermal characterization data.
Does BZT5250H-B2V7X support bidirectional ESD protection?
No - it is a unidirectional Zener diode optimized for reverse-bias regulation. While its 0.9 V forward voltage allows limited forward conduction, it lacks symmetric clamping characteristics or IEC 61000-4-2 certification for dedicated ESD protection; use dedicated TVS arrays like PESD5V0S1BA for that function.
How does the "intentional minor rise of leakage current" affect long-term reliability?
The controlled leakage increase (per AN90031) is a process-tuned feature, not a degradation mechanism - it is fully characterized, stable over lifetime, and does not accelerate wear-out. Accelerated life testing confirms >100,000 hours MTTF at 85 °C/85 % RH with no parametric shift beyond spec limits.
Can BZT5250H-B2V7X be used in place of a 2.5 V Zener in an existing design?
No - its 2.7 V nominal voltage differs by 8 % from 2.5 V, exceeding typical feedback loop tolerance. Substituting would shift regulation point, potentially causing undervoltage lockout or ADC reference errors; redesign of bias network or selection of BZT5250H-B2V5X (if available) is required.
BZT5250H-B2V7X 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):
- 2.7 V
- Tolerance:
- ±2%
- Power - Max:
- 375 mW
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 1 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-B2V7X FAQ
1.How can I place an order for BZT5250H-B2V7X through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT5250H-B2V7X 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-B2V7X reliable?
The price and inventory of BZT5250H-B2V7X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT5250H-B2V7X is usually 5 days.
3.What payment methods are accepted for BZT5250H-B2V7X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT5250H-B2V7X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT5250H-B2V7X?
BZT5250H-B2V7X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT5250H-B2V7X 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-B2V7X?
For technical support, including BZT5250H-B2V7X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT5250H-B2V7X requirements.
6.How does Aetrix verify that BZT5250H-B2V7X is sourced from the original manufacturer or authorized distributors?
All BZT5250H-B2V7X 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-B2V7X meets industry standards.
7.What is the process for return or replacement of BZT5250H-B2V7X?
All BZT5250H-B2V7X units undergo pre-shipment inspection (PSI). If there is an issue with BZT5250H-B2V7X, 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-B2V7X part is unused and in its original packaging.
Return procedure for BZT5250H-B2V7X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZT5250H-B2V7X Tags
-
MMBZ5240B-7-F
Diodes Incorporated
-
BZT52C5V6T-7
Diodes Incorporated
-
MMSZ5231B-7-F
Diodes Incorporated
-
BZT52C15-7-F
Diodes Incorporated
-
BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
-
MMSZ4682T1G
onsemi
-
BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
-
SMAJ4744A-TP
Micro Commercial Co
-
BZT52C3V6LP-7
Diodes Incorporated
-
SMAZ12-13-F
Diodes Incorporated
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
