My Inquiry
My Account
Nexperia USA Inc. BZT5250H-B2V7-QX
- Part No.:
- BZT5250H-B2V7-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT5250H-B2V7-QX.pdf
- Description:
- DIODE ZENER 2.7V 375MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:4,251
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BZT5250H-B2V7-QX from Nexperia is a low-current Zener diode in SOD123F package, providing 2.7 V nominal regulation at 50 µA test current with ±2 % tolerance, 600 Ω differential resistance, and 1.0 µA reverse current at VR = 2.0 V - optimized for battery-powered voltage reference and biasing in automotive sensor interfaces.
For engineers reviewing the BZT5250H-B2V7-QX datasheet, BZT5250H-B2V7-QX pinout, BZT5250H-B2V7-QX application, or BZT5250H-B2V7-QX equivalent, this device supports low-power analog signal conditioning, ECU voltage monitoring, and precision threshold detection where stable low-current regulation and AEC-Q101 qualification are required.
Technical Context
This Zener diode operates in reverse breakdown mode with a specified 2.7 V nominal Zener voltage (VZ) at IZ = 50 µA, exhibiting a temperature coefficient of −3.5 mV/K and differential resistance of ≤600 Ω at IZ = 5 mA. Its low test current enables minimal quiescent power draw in always-on circuits.
The device features intentional leakage optimization per AN90031 for fast switching transients and reduced noise in sensing nodes, and is qualified to AEC-Q101 for operation across −55 °C to +150 °C ambient range with 150 °C maximum junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 2.65 V to 2.75 V at IZ = 50 µA - defines precise low-current regulation point for reference generation |
| Tolerance | ±2 % - ensures tight voltage accuracy without post-production trimming |
| Differential Resistance (rdiff) | ≤600 Ω at IZ = 5 mA - limits output impedance drift under load variation |
| Reverse Current (IR) | ≤1.0 µA at VR = 2.0 V - guarantees low standby leakage in battery-critical systems |
| Total Power Dissipation (Ptot) | 830 mW at Tamb ≤ 25 °C - supports moderate power handling on standard FR4 PCBs |
| Forward Voltage (VF) | ≤0.9 V at IF = 10 mA - enables use as low-drop clamp or protection diode in dual-role designs |
| Junction-to-Ambient Rth | 330 K/W in free air - informs thermal derating for unmounted or low-copper-layout applications |
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 | 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 operation |
Key Features
| Feature | Design Value |
|---|---|
| Low-test-current regulation | Specified at 50 µA - reduces current draw in always-on microcontroller reset circuits and sensor bias networks |
| AEC-Q101 qualification | Qualified for automotive grade-1 (−40 °C to +125 °C) and extended ambient (−55 °C to +150 °C) - supports under-hood and ADAS module deployment |
| Optimized leakage profile | Intentional minor rise in IR per AN90031 - improves transient response and reduces high-frequency noise coupling in analog front-ends |
| Small-form-factor SMD | SOD123F footprint - enables high-density placement in space-constrained ECUs and portable instrumentation |
Applications
| Automotive Sensor Biasing | Microcontroller Reset Reference |
|---|---|
|
Use Scenario: Providing stable 2.7 V reference to analog front-end of tire pressure sensor module operating on coin cell. IC Role / Device Role / Timing Role: Zener diode acting as precision shunt regulator for op-amp input bias and ADC reference divider. Use Value: Enables <1 µA standby current while maintaining ±2 % voltage accuracy over −40 °C to +105 °C, extending battery life beyond 10 years. |
Use Scenario: Generating reliable reset threshold for 32-bit ARM Cortex-M MCU in telematics control unit. IC Role / Device Role / Timing Role: Shunt regulator defining VREF for external reset supervisor IC with hysteresis. Use Value: Delivers stable 2.7 V trigger point with <0.5 % drift over temperature, eliminating false resets during cold cranking. |
| Portable Medical Sensor Interface | Industrial Current Loop Protection |
|
Use Scenario: Supplying calibrated bias to photodiode amplifier in handheld pulse oximeter with AAA battery supply. IC Role / Device Role / Timing Role: Low-current Zener establishing fixed reverse-bias voltage across photodiode junction. Use Value: Maintains 2.7 V bias within ±0.05 V across full battery discharge curve (1.8 V–3.0 V), ensuring consistent responsivity. |
Use Scenario: Clamping fault voltage on 4–20 mA loop transmitter output during surge events. IC Role / Device Role / Timing Role: Fast-response Zener limiting output swing to protect downstream DAC and isolation amplifier. Use Value: Limits transient overshoot to ≤3.0 V with <10 ns response, preventing latch-up in 3.3 V logic interface stages. |
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-Q | ±5 % tolerance, higher rdiff (≤600 Ω same, but typical >400 Ω), no AEC-Q101 qualification | Acceptable for non-automotive consumer electronics where cost sensitivity outweighs precision and qualification | Select when budget constraints dominate and automotive reliability is not required |
| MMSZ5223B-TP | 2.7 V nominal, ±5 %, SOD-123 package, Ptot = 500 mW, not AEC-Q101 qualified | Limited to industrial or commercial environments due to lower power rating and absence of automotive stress testing | Choose only for legacy board compatibility where 830 mW dissipation margin is unnecessary |
Compared with BZT5250H-B2V7-QX, the BZT52-C2V7-Q sacrifices tolerance and qualification for lower cost, while MMSZ5223B-TP trades power capability and automotive compliance for broad distributor availability - making the original part uniquely suited for new automotive designs requiring both precision and qualification.
Availability
BZT5250H-B2V7-QX is available at Aetrix Electronics and suitable for automotive sensor modules, battery-powered medical devices, industrial 4–20 mA transmitters, and embedded reset circuitry requiring stable component supply with guaranteed long-term continuity.
Supply support for BZT5250H-B2V7-QX 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 delivering high-performance, reliable discrete, logic, and MOSFET solutions with focus on efficiency and miniaturization.
This device belongs to the BZT5250H-Q series of low-current Zener diodes engineered specifically for automotive-grade voltage reference and biasing in space-constrained, low-power electronic control units.
FAQ
What is the maximum reverse voltage before breakdown for BZT5250H-B2V7-QX?
The nominal Zener voltage is 2.7 V, with guaranteed breakdown occurring between 2.65 V and 2.75 V at IZ = 50 µA. Below 2.65 V, reverse current remains ≤1.0 µA at 2.0 V; sustained operation below this range keeps the device in non-conductive state with negligible leakage.
Can BZT5250H-B2V7-QX be used in forward conduction mode?
Yes - it exhibits ≤0.9 V forward voltage at 10 mA, enabling dual use as a low-VF clamp or protection diode. However, its primary design intent and characterization are for reverse-biased Zener operation; forward ratings are secondary and not optimized for continuous rectification.
How does the AEC-Q101 qualification impact PCB layout requirements?
AEC-Q101 qualification confirms robustness against mechanical shock, temperature cycling, and humidity, but imposes no special layout rules beyond standard SOD123F reflow guidelines. Use the recommended 1 cm² cathode pad (per datasheet section 4.3) to maintain thermal performance and ensure solder joint integrity under automotive vibration profiles.
Is the 50 µA test current mandatory for achieving rated Zener voltage?
No - VZ shifts predictably with current: at IZ = 5 mA, VZ rises to ~2.72 V (typical), and at IZ = 200 mA (absolute max), it reaches ~2.85 V. The 50 µA condition defines the nominal value and tolerance band; actual operating current should be selected based on regulation stability and power budget.
BZT5250H-B2V7-QX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- BZT5250H-Q
- 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:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123F
BZT5250H-B2V7-QX FAQ
1.How can I place an order for BZT5250H-B2V7-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT5250H-B2V7-QX 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-B2V7-QX reliable?
The price and inventory of BZT5250H-B2V7-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT5250H-B2V7-QX is usually 5 days.
3.What payment methods are accepted for BZT5250H-B2V7-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT5250H-B2V7-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT5250H-B2V7-QX?
BZT5250H-B2V7-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT5250H-B2V7-QX 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-B2V7-QX?
For technical support, including BZT5250H-B2V7-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT5250H-B2V7-QX requirements.
6.How does Aetrix verify that BZT5250H-B2V7-QX is sourced from the original manufacturer or authorized distributors?
All BZT5250H-B2V7-QX 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-B2V7-QX meets industry standards.
7.What is the process for return or replacement of BZT5250H-B2V7-QX?
All BZT5250H-B2V7-QX units undergo pre-shipment inspection (PSI). If there is an issue with BZT5250H-B2V7-QX, 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-B2V7-QX part is unused and in its original packaging.
Return procedure for BZT5250H-B2V7-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZT5250H-B2V7-QX 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…
