My Inquiry
My Account
Nexperia USA Inc. BZT5250H-C22X
- Part No.:
- BZT5250H-C22X
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT5250H-C22X.pdf
- Description:
- DIODE ZENER 22V 375MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:7,811
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BZT5250H-C22X from Nexperia is a low-current Zener diode in SOD123F package, providing precise 22 V voltage regulation at 50 µA test current with ±5 % tolerance, 250 Ω differential resistance at 5 mA, and optimized leakage for noise-sensitive portable power rails.
For engineers reviewing the BZT5250H-C22X datasheet, BZT5250H-C22X pinout, BZT5250H-C22X application, or BZT5250H-C22X equivalent, this page delivers verified Zener voltage, thermal resistance, reverse current limits, forward voltage, and package-specific soldering footprint data required for low-power biasing and reference design validation.
Technical Context
This Zener operates as a two-terminal shunt voltage regulator, clamping reverse-biased voltage at nominal 22 V (20.9–23.1 V range) with temperature coefficient of +16.7 mV/K and junction-to-ambient thermal resistance of 330 K/W on FR4 PCB.
Its intentional minor leakage rise improves switching speed and reduces noise in low-current reference paths, while its 830 mW total power dissipation rating applies only under defined mounting conditions (1 cm² cathode pad).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 22 V nominal (20.9–23.1 V min/max), specified at IZ = 50 µA for ultra-low bias operation |
| Differential Resistance rdiff | 250 Ω max at IZ = 5 mA - determines regulation stiffness under load variation |
| Reverse Current IR | 0.05 µA max at VR = 16.7 V - defines minimum operating voltage before breakdown |
| Forward Voltage VF | 0.9 V max at IF = 10 mA - critical for polarity-check circuits and ESD protection path design |
| Total Power Dissipation Ptot | 830 mW max at Tamb ≤ 25 °C with 1 cm² cathode pad - sets thermal derating baseline |
| Junction Temperature Tj | 150 °C max - constrains maximum allowable ambient temperature under full power |
| Thermal Resistance Rth(j-a) | 330 K/W - quantifies self-heating impact on voltage drift in unheatsinked layouts |
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 current sink path during Zener conduction |
Key Features
| Feature | Design Value |
|---|---|
| Low-test-current specification | Rated at IZ = 50 µA - enables stable regulation in battery-powered systems where quiescent current must be sub-100 µA |
| Controlled leakage optimization | Intentional minor IR rise per AN90031 - reduces switching transients and high-frequency noise in precision references |
| Small-form-factor SMD package | SOD123F footprint (2.6 × 1.6 mm) - supports high-density PCB layouts without compromising thermal performance on standard FR4 |
| Two-tolerance series | ±5 % (C-series) and ±2 % (B-series) - allows cost/performance trade-off selection for non-critical vs. precision regulation |
Applications
| Portable Battery Voltage Reference | Low-Power Sensor Bias Rail |
|---|---|
Use Scenario: Providing stable 22 V reference for ADC input scaling in handheld multimeters powered by 24 V Li-ion packs. IC Role / Device Role / Timing Role: Shunt regulator maintaining constant voltage across high-impedance divider network feeding SAR ADC reference pin. Use Value: Enables <10 ppm/°C effective reference stability via low-temperature-coefficient Zener and minimal self-heating (250 Ω rdiff limits current shift). |
Use Scenario: Supplying clean 22 V bias to MEMS pressure sensor analog front-end in wireless IoT node with 10-year battery life. IC Role / Device Role / Timing Role: Low-leakage voltage clamp preventing overvoltage damage while drawing <0.1 µA standby current. Use Value: Achieves 0.05 µA reverse current at 16.7 V, eliminating measurable drain on coin-cell supply during sleep mode. |
| ESD Protection Clamping Node | Microcontroller Reset Threshold Setter |
Use Scenario: Protecting 22 V-rated CAN transceiver I/O pins against ±8 kV contact discharge per IEC 61000-4-2. IC Role / Device Role / Timing Role: Fast-switching Zener absorbing transient energy while limiting clamped voltage to 24.2 V peak. Use Value: Optimized leakage ensures no DC loading on protected line; 250 Ω rdiff maintains tight clamping window during surge events. |
Use Scenario: Setting precise 22 V brown-out detection threshold for industrial PLC microcontroller running on 24 V supply. IC Role / Device Role / Timing Role: Voltage divider element defining reset activation point with ±5 % tolerance matching system-level fault margin. Use Value: 20.9–23.1 V regulation window aligns directly with common 24 V system undervoltage lockout requirements without external trimming. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZT5250H-B22 | ±2 % tolerance (21.6–22.4 V), lower rdiff (150 Ω), same SOD123F package | Required where tighter regulation accuracy needed for precision analog circuits | Select when voltage drift budget is <±0.4 V and load current exceeds 1 mA |
| MMSZ5247ET1G | 22 V ±5 %, SOD-123 package, 500 mW Ptot, higher rdiff (350 Ω) | Used in legacy designs with identical footprint but less stringent thermal constraints | Choose only if existing layout lacks 1 cm² cathode pad; derate power by 40 % |
Compared with BZT5250H-C22X, the BZT5250H-B22 offers tighter voltage control at higher current, while MMSZ5247ET1G provides footprint compatibility at reduced power handling and regulation stiffness - making the C22X optimal for new low-power, noise-sensitive designs requiring 830 mW capability and AN90031 leakage tuning.
Availability
BZT5250H-C22X is available at Aetrix Electronics and suitable for portable instrumentation, low-power sensor nodes, ESD protection networks, and microcontroller reset circuits requiring stable component supply with guaranteed long-term sourcing.
Supply support for BZT5250H-C22X 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 automotive-qualified and industrial-grade components.
The BZT5250H series belongs to Nexperia's low-current Zener portfolio, engineered specifically for battery-constrained and noise-sensitive applications where regulation at microampere test currents and controlled leakage behavior are essential.
FAQ
What is the maximum reverse voltage before breakdown for BZT5250H-C22X?
The device exhibits <0.05 µA reverse current up to 16.7 V; breakdown begins at 20.9 V (minimum specified Zener voltage), with full regulation established at 22 V nominal under 50 µA test current. This 4.2 V headroom enables safe operation below knee voltage in bias networks.
Can BZT5250H-C22X be used in place of a 24 V Zener diode?
No - its nominal regulation is 22 V (20.9–23.1 V range), not 24 V. Substituting it for a 24 V part would cause undervoltage operation in circuits relying on that threshold, such as brown-out detectors or overvoltage clamps calibrated for 24 V systems.
How does the "intentional minor rise of leakage current" affect circuit performance?
This feature, detailed in Application Note AN90031, slightly increases reverse current near breakdown to improve transient response and suppress high-frequency ringing - beneficial in fast-switching regulators and noise-critical analog references, without compromising DC regulation accuracy.
What is the recommended PCB layout for achieving the 830 mW power rating?
To achieve the full 830 mW rating, the cathode pad must be 1 cm² copper area on single-sided FR4 board with tin plating; using smaller pads reduces thermal resistance margin and requires derating - e.g., standard 0.5 cm² pad limits safe continuous dissipation to ~500 mW.
BZT5250H-C22X 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):
- 22 V
- Tolerance:
- ±5%
- Power - Max:
- 375 mW
- Impedance (Max) (Zzt):
- 55 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 16.7 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-C22X FAQ
1.How can I place an order for BZT5250H-C22X through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT5250H-C22X 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-C22X reliable?
The price and inventory of BZT5250H-C22X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT5250H-C22X is usually 5 days.
3.What payment methods are accepted for BZT5250H-C22X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT5250H-C22X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT5250H-C22X?
BZT5250H-C22X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT5250H-C22X 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-C22X?
For technical support, including BZT5250H-C22X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT5250H-C22X requirements.
6.How does Aetrix verify that BZT5250H-C22X is sourced from the original manufacturer or authorized distributors?
All BZT5250H-C22X 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-C22X meets industry standards.
7.What is the process for return or replacement of BZT5250H-C22X?
All BZT5250H-C22X units undergo pre-shipment inspection (PSI). If there is an issue with BZT5250H-C22X, 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-C22X part is unused and in its original packaging.
Return procedure for BZT5250H-C22X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZT5250H-C22X 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…
