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Nexperia USA Inc. BZX84J-C27,115
- Part No.:
- BZX84J-C27,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-90, SOD-323F
- Datasheet:
-
BZX84J-C27,115.pdf
- Description:
- DIODE ZENER 27V 550MW SOD323F
- Quantity:
- Payment:
- Shipping:
Inventory:1,590
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Product details
Overview
BZX84J-C27,115 from Nexperia is a ±5 % tolerance Zener voltage regulator diode with nominal 27 V breakdown voltage, 550 mW total power dissipation, and AEC-Q101 qualification for automotive use. It operates in reverse-bias regulation mode, provides low differential resistance (73 Ω at IZ = 2 mA), and is housed in an SOD323F (SC-90) surface-mount package for space-constrained PCB designs.
For engineers reviewing the BZX84J-C27,115 datasheet, BZX84J-C27,115 pinout, BZX84J-C27,115 application, or BZX84J-C27,115 equivalent, key selection criteria include Zener voltage tolerance, non-repetitive surge capability (1 A peak reverse current), thermal resistance (230 K/W junction-to-ambient), and automotive-grade reliability validation.
Technical Context
This Zener diode regulates voltage by maintaining a stable reverse breakdown at 27 V ±5 % under 2 mA test current, with temperature coefficient of +21.4 mV/K and reverse leakage <0.05 µA at 20.8 V. Its low 73 Ω differential resistance ensures minimal voltage deviation across load current variations.
Designed for transient-suppressed regulation, it supports non-repetitive 100 µs square-wave surges up to 1 A (40 W peak) and operates across –55 °C to +150 °C ambient, enabled by AEC-Q101 stress qualification and SOD323F package thermal performance (Rth(j-a) = 230 K/W).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 27 V nominal, ±5 % tolerance at IZ = 2 mA - defines precise regulation setpoint for feedback or reference circuits |
| Differential Resistance (rdiff) | 73 Ω at IZ = 2 mA - determines output impedance and load regulation error sensitivity |
| Temperature Coefficient (SZ) | +21.4 mV/K - quantifies voltage drift per degree Celsius, critical for high-temperature stability |
| Total Power Dissipation (Ptot) | 550 mW at Tamb ≤ 25 °C - sets maximum continuous DC power handling on standard FR4 PCB |
| Non-repetitive Peak Reverse Current (IZSM) | 1 A at tp = 100 µs - enables short-duration overvoltage clamping without failure |
| Junction Temperature (Tj) | 150 °C maximum - defines upper thermal limit for safe operation under sustained bias |
| Reverse Leakage (IR) | <0.05 µA at VR = 20.8 V - ensures minimal quiescent current in standby regulation paths |
Pinout & Package
The BZX84J-C27,115 is packaged in SOD323F (SC-90), a 2-pin ultra-small flat-lead surface-mount plastic package measuring 2.7 mm × 1.35 mm × 0.95 mm, optimized for automated placement and reflow soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (marked side) | Cathode (K) | Connected to regulated output node; reverse-bias anode-to-cathode voltage establishes Zener conduction |
| 2 | Anode (A) | Typically tied to ground or lower-potential rail; completes current path during regulation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive electronics per stress-test requirements - enables use in engine control, body electronics, and ADAS modules |
| ±5 % Zener voltage tolerance | Tighter than standard ±10 % parts - reduces need for post-production trimming in precision reference designs |
| Low 73 Ω differential resistance | Minimizes output voltage variation under dynamic load changes - improves regulation accuracy in feedback loops |
| SOD323F (SC-90) package | 0.95 mm height and 1.35 mm width - supports high-density routing and thermal relief on compact PCBs |
| 150 °C max junction temperature | Enables operation in under-hood environments without derating below 125 °C ambient - extends usable thermal margin |
Applications
| Automotive Body Control Module (BCM) | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Stable 27 V reference for microcontroller ADC input scaling in door module voltage monitoring. IC Role / Device Role / Timing Role: Zener diode acts as precision shunt reference, clamping sensor supply rail to fixed 27 V for ratiometric measurement integrity. Use Value: ±5 % tolerance and +21.4 mV/K TC ensure <±1.5 % total error over –40 °C to +125 °C, meeting ASIL-B functional safety margins. |
Use Scenario: Overvoltage protection for 24 V industrial analog front-end inputs exposed to field wiring transients. IC Role / Device Role / Timing Role: Shunt clamp absorbing 100 µs surges up to 40 W, preventing damage to downstream op-amps and ADC drivers. Use Value: 1 A non-repetitive peak current rating and 230 K/W thermal resistance allow reliable clamping without thermal runaway on standard PCB layouts. |
| Telecom Power Supervision Circuit | Medical Infusion Pump Voltage Monitor |
Use Scenario: Undervoltage lockout (UVLO) threshold generation for 27 V backup battery supervision in base station power management. IC Role / Device Role / Timing Role: Zener diode forms comparator reference leg, triggering shutdown when main rail drops below 27 V × 0.95 = 25.65 V. Use Value: Low 0.05 µA reverse leakage at 20.8 V ensures negligible current draw in always-on monitoring state, extending battery life. |
Use Scenario: Isolated 27 V auxiliary supply regulation for motor driver gate bias in battery-powered infusion pumps. IC Role / Device Role / Timing Role: Shunt regulator stabilizing isolated DC/DC output, ensuring consistent MOSFET turn-on characteristics across battery discharge cycle. Use Value: AEC-Q101 qualification and 150 °C junction rating support long-term reliability in sealed, thermally constrained medical enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C27,115 | Same 27 V ±5 % rating but lacks AEC-Q101 qualification; Ptot = 365 mW (lower power handling) | Restricted to commercial-grade consumer or industrial equipment without automotive reliability requirements | Select only if cost sensitivity outweighs automotive qualification and higher power margin needs |
| MMSZ5258B-TP | 27 V ±5 %, SOD-123 package (larger footprint), Ptot = 500 mW, no AEC-Q101 documentation confirmed | Requires PCB layout revision due to 3.7 mm × 1.6 mm footprint; thermal resistance ~290 K/W limits surge robustness | Choose only if SOD-123 is already standardized in design and AEC-Q101 is not mandated |
Compared with BZX84J-C27,115, the BZX84-C27,115 sacrifices automotive qualification and 185 mW power headroom, while MMSZ5258B-TP trades package miniaturization for reduced thermal performance and unverified automotive compliance - making the BZX84J-C27,115 the sole option meeting AEC-Q101, SOD323F size, and 550 mW dissipation simultaneously.
Availability
BZX84J-C27,115 is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, telecom power supervision, and medical device voltage monitoring requiring stable component supply with full traceability and long-lifecycle support.
Supply support for BZX84J-C27,115 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 components and advanced packaging technologies.
The BZX84J series belongs to Nexperia's AEC-Q101-qualified Zener diode product line, engineered specifically for robust voltage reference and overvoltage protection in harsh-environment automotive and industrial systems.
FAQ
What is the maximum continuous reverse voltage this diode can regulate at 27 V?
The BZX84J-C27,115 maintains stable Zener conduction at its nominal 27 V breakdown voltage when reverse-biased with ≥2 mA current and within its 550 mW total power dissipation limit. At 25 °C ambient on standard FR4, this supports up to 20.4 mA continuous current (27 V × 20.4 mA = 550 mW), assuming negligible forward drop elsewhere in the circuit.
Does the SOD323F package require special PCB layout considerations?
Yes - the SOD323F footprint requires 0.5 mm pad width and 0.6 mm pad length per terminal, with 0.8 mm center-to-center spacing. Thermal relief must include ≥1 cm² cathode copper pour per Nexperia's datasheet recommendation to maintain Rth(j-a) ≤ 230 K/W and prevent derating above 25 °C ambient.
How does the +21.4 mV/K temperature coefficient affect regulation accuracy?
At 27 V nominal, +21.4 mV/K means the Zener voltage increases by ~2.14 V over a 100 K rise (e.g., from 25 °C to 125 °C junction). This is fully characterized in Table 9 and must be compensated in high-accuracy references via external circuitry or calibration; it does not indicate instability but predictable drift.
Is this part suitable for bidirectional ESD protection?
No - the BZX84J-C27,115 is a unidirectional Zener diode optimized for DC voltage regulation and unidirectional transient suppression. It lacks symmetric breakdown behavior and specified ESD ratings (e.g., IEC 61000-4-2); dedicated TVS diodes like PESD5V0S1BA should be used for bidirectional ESD clamping.
BZX84J-C27,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SC-90, SOD-323F
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 27 V
- Tolerance:
- ±5%
- Power - Max:
- 550 mW
- Impedance (Max) (Zzt):
- 40 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 18.9 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 100 mA
- Operating Temperature:
- -65°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323F
BZX84J-C27,115 FAQ
1.How can I place an order for BZX84J-C27,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84J-C27,115 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 BZX84J-C27,115 reliable?
The price and inventory of BZX84J-C27,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84J-C27,115 is usually 5 days.
3.What payment methods are accepted for BZX84J-C27,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84J-C27,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84J-C27,115?
BZX84J-C27,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84J-C27,115 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 BZX84J-C27,115?
For technical support, including BZX84J-C27,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84J-C27,115 requirements.
6.How does Aetrix verify that BZX84J-C27,115 is sourced from the original manufacturer or authorized distributors?
All BZX84J-C27,115 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 BZX84J-C27,115 meets industry standards.
7.What is the process for return or replacement of BZX84J-C27,115?
All BZX84J-C27,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZX84J-C27,115, 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 BZX84J-C27,115 part is unused and in its original packaging.
Return procedure for BZX84J-C27,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84J-C27,115 Tags
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