My Inquiry
My Account
Nexperia USA Inc. BZT5250H-C15X
- Part No.:
- BZT5250H-C15X
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT5250H-C15X.pdf
- Description:
- DIODE ZENER 15V 375MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:2,665
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BZT5250H-C15X from Nexperia is a low-current Zener diode in SOD123F package, providing 15 V ±5 % nominal regulation at 50 µA test current, with 830 mW total power dissipation and 200 mA maximum forward current-used for precision voltage reference and biasing in portable battery-powered sensor nodes and low-power microcontroller reset circuits.
For engineers reviewing the BZT5250H-C15X datasheet, BZT5250H-C15X pinout, BZT5250H-C15X application, or BZT5250H-C15X equivalent, key selection criteria include its 15 V Zener voltage tolerance (±5 %), low 50 µA test current specification, intentional leakage optimization for noise reduction, and thermal resistance of 150 K/W to solder point-critical for compact PCB layouts with limited copper area.
Technical Context
This Zener diode operates in reverse breakdown mode with a specified Zener voltage of 14.25 V to 15.75 V at IZ = 50 µA, exhibiting a temperature coefficient of +9.2 mV/K and differential resistance of 200 Ω at IZ = 5 mA. Its design targets stable low-bias operation where minimal quiescent current is essential.
The device features intentionally elevated leakage current versus standard Zeners (per AN90031) to improve switching speed and reduce high-frequency noise in analog signal chains and ADC reference buffers-enabled by optimized doping profile and junction geometry in the SOD123F package.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 14.25 V to 15.75 V at IZ = 50 µA - defines regulation threshold for low-current bias networks |
| Tolerance | ±5 % - supports cost-sensitive designs where tighter tolerance is not required |
| Power Dissipation (Ptot) | 830 mW at Tamb ≤ 25 °C on 1 cm² cathode pad - enables use in thermally constrained SMT layouts |
| Forward Voltage (VF) | ≤ 0.9 V at IF = 10 mA - ensures minimal drop in series-connected bias paths |
| Thermal Resistance (Rth(j-sp)) | 150 K/W - quantifies junction-to-solder-point heat transfer efficiency for thermal modeling |
| Reverse Current (IR) | ≤ 0.05 µA at VR = 11.4 V - confirms sharp knee and low leakage below regulation threshold |
| Capacitance (Cd) | 75 pF at VR = 0 V, f = 1 MHz - impacts high-frequency noise coupling in reference circuits |
Pinout & Package
SOD123F surface-mount plastic package: 2.6 mm × 1.6 mm × 1.1 mm body, flat lead configuration with cathode marked by bar.
| 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 during regulation |
Key Features
| Feature | Design Value |
|---|---|
| Low test current operation | Specified at 50 µA - reduces standby power in always-on sensor interfaces and RTC backup circuits |
| Optimized leakage profile | Intentional minor rise per AN90031 - improves transient response and suppresses broadband noise in LDO feedback paths |
| Small SMD footprint | SOD123F package - saves board space in wearables and IoT edge nodes with dense component placement |
| Two tolerance options | ±2 % (B-series) and ±5 % (C-series) - allows trade-off between precision and cost across product variants |
| High surge robustness | 40 W non-repetitive peak reverse power (tp = 100 µs) - withstands ESD transients in unshielded input stages |
Applications
| Portable Sensor Biasing | Microcontroller Reset Reference |
|---|---|
|
Use Scenario: Providing stable 15 V reference for analog front-end amplifiers in battery-powered environmental sensors. IC Role / Device Role / Timing Role: Zener diode operating in reverse breakdown to clamp and stabilize supply rail for op-amp biasing. Use Value: Low 50 µA test current minimizes drain on coin-cell batteries; ±5 % tolerance meets industrial sensor accuracy requirements without trimming. |
Use Scenario: Generating precise reset threshold for 3.3 V microcontrollers using resistor divider from 15 V rail. IC Role / Device Role / Timing Role: Voltage reference element defining hysteresis window for external reset supervisor ICs. Use Value: Tight 14.25–15.75 V range ensures reliable reset assertion across temperature; low capacitance avoids timing jitter. |
| ADC Reference Buffer | Low-Power Oscillator Bias |
|
Use Scenario: Stabilizing reference voltage for 12-bit SAR ADCs in handheld medical devices. IC Role / Device Role / Timing Role: Shunt regulator supplying clean, low-noise reference to ADC internal buffer amplifier. Use Value: Optimized leakage profile reduces broadband noise floor; 75 pF capacitance prevents resonance with decoupling caps. |
Use Scenario: Biasing crystal oscillator circuitry in ultra-low-power BLE modules with intermittent wake-up. IC Role / Device Role / Timing Role: Voltage stabilizer for Pierce oscillator's inverter bias network to maintain frequency stability. Use Value: 150 K/W Rth(j-sp) enables thermal tracking with oscillator IC; low VF avoids forward conduction during startup transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZT52-C15 | Same 15 V ±5 % rating but rated at 5 mA test current; higher rdiff (300 Ω vs. 200 Ω); no intentional leakage optimization | Lacks AN90031 noise-reduction tuning; less suitable for high-precision analog references | Select when legacy compatibility or higher test-current compliance is required over noise performance |
| MMSZ5245B | 15 V ±5 %, SOD-123 package, 500 mW Ptot, rdiff = 19 Ω at 20 mA - lower dynamic impedance but higher power derating | Requires ≥1 mA test current; unsuitable for sub-100 µA bias networks | Prefer for higher-current regulation where thermal margin permits; avoid in coin-cell applications |
Compared with BZT52-C15, BZT5250H-C15X delivers lower noise and sharper knee due to controlled leakage; versus MMSZ5245B, it trades dynamic impedance for ultra-low bias current capability-making it optimal for energy-constrained systems where 50 µA operation is mandatory.
Availability
BZT5250H-C15X is available at Aetrix Electronics and suitable for portable sensor biasing, microcontroller reset reference, and low-power oscillator bias applications requiring stable component supply across extended production lifecycles.
Supply support for BZT5250H-C15X 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.
The BZT5250H series belongs to Nexperia's low-current Zener portfolio, engineered specifically for battery-powered and noise-sensitive applications where minimal test current and intentional leakage control are critical design requirements.
FAQ
What is the exact Zener voltage range for BZT5250H-C15X at 50 µA?
The BZT5250H-C15X has a guaranteed Zener voltage range of 14.25 V to 15.75 V when measured at IZ = 50 µA and Tj = 25 °C, per Table 8 of the official Nexperia datasheet Rev. 1 (18 July 2024). This ±5 % tolerance is confirmed across production lots and validated under specified thermal mounting conditions.
Does BZT5250H-C15X support reflow soldering only, or can it be hand-soldered?
Reflow soldering is the only recommended method per Nexperia's official guidelines (Section 12). Hand-soldering is not advised due to thermal stress risks: peak reflow temperature is 260 °C for ≤ 30 seconds, while manual iron contact exceeds localized thermal limits and may degrade the intentional leakage profile critical to noise performance.
How does the "intentional minor rise of leakage current" affect circuit behavior?
This feature-documented in Application Note AN90031-reduces minority-carrier lifetime to accelerate junction recovery, lowering high-frequency noise and improving transient response in reference and feedback paths. It does not increase steady-state power consumption, as leakage remains <0.05 µA below 11.4 V reverse bias.
Can BZT5250H-C15X replace BZX84-C15 in existing designs?
No direct replacement: BZX84-C15 uses SOT-23 package (3-pin, anode/cathode/NC), while BZT5250H-C15X is SOD123F (2-pin, anode/cathode only). Pinout, footprint, and thermal characteristics differ significantly; redesign of PCB layout and thermal pad is required for migration.
BZT5250H-C15X 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):
- 15 V
- Tolerance:
- ±5%
- Power - Max:
- 375 mW
- Impedance (Max) (Zzt):
- 30 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 11.4 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-C15X FAQ
1.How can I place an order for BZT5250H-C15X through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT5250H-C15X 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-C15X reliable?
The price and inventory of BZT5250H-C15X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT5250H-C15X is usually 5 days.
3.What payment methods are accepted for BZT5250H-C15X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT5250H-C15X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT5250H-C15X?
BZT5250H-C15X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT5250H-C15X 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-C15X?
For technical support, including BZT5250H-C15X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT5250H-C15X requirements.
6.How does Aetrix verify that BZT5250H-C15X is sourced from the original manufacturer or authorized distributors?
All BZT5250H-C15X 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-C15X meets industry standards.
7.What is the process for return or replacement of BZT5250H-C15X?
All BZT5250H-C15X units undergo pre-shipment inspection (PSI). If there is an issue with BZT5250H-C15X, 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-C15X part is unused and in its original packaging.
Return procedure for BZT5250H-C15X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZT5250H-C15X 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…
