My Inquiry
My Account
Nexperia USA Inc. BZT5250H-C27X
- Part No.:
- BZT5250H-C27X
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT5250H-C27X.pdf
- Description:
- DIODE ZENER 27V 375MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:2,612
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BZT5250H-C27X from Nexperia is a low-current Zener diode in SOD123F package, providing 27 V nominal regulation at 50 µA test current with ±5 % tolerance, 300 Ω differential resistance at 5 mA, and 0.05 µA reverse leakage at rated voltage - optimized for voltage reference and biasing in portable battery-powered systems.
For engineers reviewing the BZT5250H-C27X datasheet, BZT5250H-C27X pinout, BZT5250H-C27X application, or BZT5250H-C27X equivalent, key selection criteria include low-test-current regulation stability, thermal resistance (150 K/W junction-to-solder point), SOD123F footprint compatibility, and intentional leakage tuning for noise reduction per AN90031.
Technical Context
This Zener operates in reverse breakdown mode with specified regulation at IZ = 50 µA, enabling stable reference generation under ultra-low quiescent current conditions. Its differential resistance of 300 Ω at 5 mA ensures predictable impedance behavior across moderate load variations.
The device exhibits a temperature coefficient of +20.4 mV/K and diode capacitance of 50 pF at 0 V, supporting stable performance in ambient temperatures from –55 °C to +150 °C and low-noise signal conditioning roles.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 25.65 V to 28.35 V at IZ = 50 µA - defines precise regulation window for low-power reference circuits |
| Differential Resistance (rdiff) | 300 Ω max at IZ = 5 mA - determines output impedance and load regulation sensitivity |
| Reverse Leakage (IR) | 0.05 µA max at VR = 27 V - enables ultra-low standby power in battery-critical designs |
| Forward Voltage (VF) | 0.9 V max at IF = 10 mA - supports polarity-check and protection functions without excessive drop |
| Total Power Dissipation (Ptot) | 830 mW at Tamb ≤ 25 °C on 1 cm² cathode pad - sets thermal derating boundary for PCB layout |
| Junction-to-Solder-Point Rth | 150 K/W - informs thermal design when mounting on FR4 with tin-plated copper |
| Package | SOD123F (2.6 mm × 1.6 mm × 1.1 mm) - surface-mount compatible with standard reflow footprints |
Pinout & Package
SOD123F is a 2-pin surface-mount plastic package with cathode marked by a bar on the body. Mounting requires reflow only; footprint dimensions are 2.9 mm × 1.6 mm occupied area with dual 1.2 mm × 1.1 mm solder lands.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; marking bar identifies this terminal; carries reverse-bias current during regulation |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes reverse-bias path for Zener conduction |
Key Features
| Feature | Design Value |
|---|---|
| Low-test-current regulation | Specified at 50 µA - enables use in microamp-level bias networks without compromising accuracy |
| Optimized leakage profile | Intentional minor rise per AN90031 - reduces switching noise and improves transient response in reference paths |
| Tolerance options | ±2 % (B-series) and ±5 % (C-series) - allows cost/performance trade-off in non-critical regulation |
| Thermal robustness | 150 °C max junction temperature - supports operation in extended-temperature industrial environments |
| Surface-mount compatibility | SOD123F footprint aligns with IPC-7351B - simplifies automated assembly and board space optimization |
Applications
| Portable Battery Voltage Reference | Low-Power Sensor Biasing |
|---|---|
Use Scenario: Providing stable 27 V reference for ADC input scaling in handheld multimeters powered by 3.7 V Li-ion cells with boost converter. IC Role / Device Role / Timing Role: Zener diode operating in reverse breakdown as precision shunt reference. Use Value: 50 µA test current minimizes quiescent draw; ±5 % tolerance meets 12-bit measurement accuracy requirements. |
Use Scenario: Biasing photodiode amplifier stages in optical gas sensors where supply current must stay below 10 µA. IC Role / Device Role / Timing Role: Low-leakage voltage clamp establishing fixed reverse bias across photodiode junction. Use Value: 0.05 µA max IR at 27 V prevents signal offset drift; SOD123F size fits compact sensor module layouts. |
| Microcontroller Reset Circuit | ESD-Protected Interface Clamping |
Use Scenario: Generating clean 27 V threshold for supervisor IC reset assertion in automotive body control modules. IC Role / Device Role / Timing Role: Shunt regulator defining trip voltage for voltage-monitoring IC. Use Value: 300 Ω rdiff ensures sharp transition at threshold; 830 mW Ptot accommodates transient overvoltage events. |
Use Scenario: Clamping CAN transceiver VCC rail against ESD pulses in industrial fieldbus nodes. IC Role / Device Role / Timing Role: Secondary shunt clamp limiting rail excursion during IEC 61000-4-2 contact discharge. Use Value: Fast turn-on due to optimized leakage profile suppresses overshoot; SOD123F enables placement near connector. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX384-C27 | Same 27 V nominal, ±5 %, but SOD323 package (1.7 mm × 1.3 mm); 400 Ω rdiff at 5 mA; 0.1 µA IR | Higher leakage and larger dynamic impedance reduce low-current accuracy | Select when board space is more constrained than regulation precision |
| MMSZ5250B | 27 V nominal, ±5 %, SOD123 package (same outline but no F suffix); 350 Ω rdiff; 0.1 µA IR; 500 mW Ptot | Lower power rating and higher leakage limit use in high-temp or high-reliability contexts | Select for legacy footprint compatibility where thermal margin is sufficient |
Compared with BZT5250H-C27X, BZX384-C27 trades regulation precision for smaller size, while MMSZ5250B offers mechanical interchangeability at reduced thermal and leakage performance - making BZT5250H-C27X optimal for new designs prioritizing low-IZ stability and noise-sensitive references.
Availability
BZT5250H-C27X is available at Aetrix Electronics and suitable for portable instrumentation, low-power sensor interfaces, microcontroller supervision, and ESD-clamped industrial communications requiring stable component supply across production lifecycles.
Supply support for BZT5250H-C27X 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 logic, discrete, and MOSFET solutions with focus on efficiency, reliability, and miniaturization for consumer, industrial, and automotive markets.
BZT5250H belongs to Nexperia's low-current Zener diode product line, engineered specifically for voltage reference and biasing in energy-constrained, noise-sensitive applications where traditional regulators are impractical.
FAQ
What is the maximum reverse voltage before breakdown for BZT5250H-C27X?
The device is rated for 27 V nominal Zener voltage with guaranteed minimum 25.65 V and maximum 28.35 V at 50 µA test current. Breakdown occurs within this band; operation above 28.35 V risks exceeding absolute maximum ratings and may cause irreversible damage.
Can BZT5250H-C27X be used in series for higher voltage regulation?
No - Zener tolerances and temperature coefficients accumulate in series configurations, degrading overall accuracy and stability. For >27 V references, use purpose-built programmable shunt regulators or cascaded precision references instead.
Is the SOD123F package lead-free and RoHS compliant?
Yes - Nexperia confirms BZT5250H-C27X meets RoHS Directive 2011/65/EU and is manufactured with lead-free terminations and halogen-free molding compound, per product compliance documentation dated July 2024.
How does the "intentional minor rise of leakage current" affect circuit design?
This controlled leakage enhancement (per AN90031) reduces diode junction noise and improves transient response during voltage step changes - beneficial in analog reference paths but requires verification that added leakage does not disrupt ultra-low-current bias nodes.
BZT5250H-C27X 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):
- 27 V
- Tolerance:
- ±5%
- Power - Max:
- 375 mW
- Impedance (Max) (Zzt):
- 80 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 20.4 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-C27X FAQ
1.How can I place an order for BZT5250H-C27X through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT5250H-C27X 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-C27X reliable?
The price and inventory of BZT5250H-C27X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT5250H-C27X is usually 5 days.
3.What payment methods are accepted for BZT5250H-C27X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT5250H-C27X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT5250H-C27X?
BZT5250H-C27X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT5250H-C27X 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-C27X?
For technical support, including BZT5250H-C27X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT5250H-C27X requirements.
6.How does Aetrix verify that BZT5250H-C27X is sourced from the original manufacturer or authorized distributors?
All BZT5250H-C27X 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-C27X meets industry standards.
7.What is the process for return or replacement of BZT5250H-C27X?
All BZT5250H-C27X units undergo pre-shipment inspection (PSI). If there is an issue with BZT5250H-C27X, 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-C27X part is unused and in its original packaging.
Return procedure for BZT5250H-C27X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZT5250H-C27X 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…
