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Nexperia USA Inc. BZX84J-C27,135
- Part No.:
- BZX84J-C27,135
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-90, SOD-323F
- Datasheet:
-
BZX84J-C27,135.pdf
- Description:
- DIODE ZENER 27V 550MW SOD323F
- Quantity:
- Payment:
- Shipping:
Inventory:9,975
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Product details
Overview
BZX84J-C27,135 from Nexperia is a ±5 % tolerance Zener diode in SOD323F (SC-90) package, rated for 27 V nominal regulation voltage at 2 mA test current, with 550 mW total power dissipation and AEC-Q101 qualification for automotive use.
For engineers reviewing the BZX84J-C27,135 datasheet, BZX84J-C27,135 pinout, BZX84J-C27,135 application, or BZX84J-C27,135 equivalent, this device serves as a precision voltage reference and overvoltage clamp in low-power analog circuits, ECU power rails, and sensor interface protection where stable 27 V regulation under transient conditions is required.
Technical Context
This Zener diode operates in reverse breakdown to maintain a stable 27 V reference across its terminals when biased above its knee voltage. Its differential resistance of 250 Ω at IZ = 2 mA ensures predictable regulation slope, while its temperature coefficient of +21.4 mV/K at IZ = 2 mA defines voltage drift behavior over temperature.
The device supports non-repetitive surge handling up to 1 W peak reverse power (at 100 µs pulse width), and exhibits 73 pF junction capacitance at 0 V bias-critical for high-frequency noise suppression and transient response in feedback loops.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 27 V at IZ = 2 mA - precise regulation point for 24 V system rail clamping and reference generation |
| Tolerance | ±5 % - allows design margin for 25.65 V to 28.35 V operation without binning |
| Differential Resistance | 250 Ω at IZ = 2 mA - determines load regulation error under varying current draw |
| Total Power Dissipation | 550 mW at Tamb ≤ 25 °C - sets maximum continuous DC power in PCB-mounted thermal condition |
| Junction-to-Ambient Thermal Resistance | 230 K/W - defines temperature rise per watt on standard FR4 board, limiting usable power at elevated ambient |
| Non-Repetitive Peak Reverse Power | 40 W at tp = 100 µs - enables transient overvoltage absorption in automotive load-dump scenarios |
| Reverse Current @ 20 V | < 0.05 µA - ensures minimal leakage in standby mode, critical for battery-powered systems |
Pinout & Package
SOD323F (SC-90) surface-mount plastic package: 2-terminal, ultra-compact footprint (2.3 mm × 1.35 mm × 0.95 mm), flat lead, cathode marked by bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; polarity-sensitive terminal requiring correct PCB orientation for reverse-bias operation |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes reverse-bias path enabling Zener conduction |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity, and mechanical shock per discrete semiconductor stress test standard |
| Low differential resistance | 250 Ω at 2 mA enables tight regulation under small load variations in feedback networks |
| Stable temperature coefficient | +21.4 mV/K at 2 mA provides predictable, linear drift-enabling compensation in precision references |
| Small SOD323F package | 0.95 mm height and 2.3 mm × 1.35 mm footprint supports high-density layout in space-constrained ECUs and sensors |
| High surge capability | 1 A non-repetitive peak reverse current (at 100 µs) absorbs ISO 7637-2 Pulse 1/2a transients without failure |
Applications
| Automotive Body Control Module (BCM) | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Regulating 27 V supply rail for LIN transceivers and LED drivers in door module electronics. IC Role / Device Role / Timing Role: Zener clamp maintaining stable bias voltage despite battery voltage fluctuations (9–16 V) and load-dump spikes. Use Value: Prevents overvoltage damage to downstream ICs while sustaining regulation within ±5 % across -40 °C to +125 °C ambient. |
Use Scenario: Providing reference voltage for 24 V industrial pressure transducer signal chain. IC Role / Device Role / Timing Role: Precision shunt reference establishing known voltage for ADC input scaling and offset calibration. Use Value: Enables <1 % full-scale error in 12-bit measurement due to low 250 Ω dynamic impedance and stable 27 V setpoint. |
| Medical Portable Diagnostic Device | Telecom Power Interface Protection |
Use Scenario: Clamping transient surges on 24 V auxiliary power input of handheld ultrasound unit. IC Role / Device Role / Timing Role: Fast-acting overvoltage protector diverting energy during ESD events and cable coupling transients. Use Value: Absorbs 40 W peak pulses (100 µs) without degradation, preserving integrity of low-noise analog front-end circuitry. |
Use Scenario: Stabilizing bias voltage for PoE-powered Ethernet PHY interface operating from 24 V midspan supply. IC Role / Device Role / Timing Role: Voltage regulator maintaining clean 27 V reference for internal LDO enable threshold and fault detection logic. Use Value: Ensures reliable power-up sequencing and brownout immunity via low-leakage (<0.05 µA) and tight tolerance performance. |
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 rating and ±5 % tolerance, but in SOT23 package (larger footprint, higher Rth(j-a) = 300 K/W) | Lower power density and reduced surge capability (PZSM = 25 W vs. 40 W); suitable only for non-automotive, low-transient environments | Select when legacy SOT23 layout compatibility is required and thermal derating can accommodate higher junction temperature rise. |
| MMSZ5256ET1G | 27 V nominal, ±5 %, but in SOD-123 package; higher Ptot = 500 mW (vs. 550 mW), rdiff = 350 Ω (vs. 250 Ω) | Higher leakage (IR ≤ 0.1 µA vs. ≤ 0.05 µA) and no AEC-Q101 qualification-limits use to commercial-grade applications only | Choose for cost-sensitive consumer designs where automotive qualification and ultra-low leakage are not mandatory. |
Compared with BZX84J-C27,135, the BZX84-C27,115 offers identical electrical specs but inferior thermal and surge performance due to larger package, while MMSZ5256ET1G trades AEC-Q101 compliance and tighter leakage for broader commercial availability-making the J-series optimal for automotive and high-reliability industrial use.
Availability
BZX84J-C27,135 is available at Aetrix Electronics and suitable for automotive body control modules, industrial sensor interfaces, medical portable diagnostics, and telecom power interface protection requiring stable component supply with AEC-Q101 assurance.
Supply support for BZX84J-C27,135 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.
The BZX84J series belongs to Nexperia's AEC-Q101-qualified Zener diode product line, engineered specifically for robust voltage regulation and transient suppression in harsh automotive and industrial environments.
FAQ
What is the maximum continuous reverse current the BZX84J-C27,135 can sustain without exceeding its 550 mW power limit?
At 27 V Zener voltage, the absolute maximum continuous reverse current is 20.4 mA (550 mW ÷ 27 V), assuming ambient temperature ≤ 25 °C and proper PCB thermal relief. Derating is required above 25 °C per the 230 K/W thermal resistance specification.
How does the +21.4 mV/K temperature coefficient affect regulation accuracy over the automotive temperature range?
Over -40 °C to +125 °C (165 K span), the voltage shift is +3.53 V (21.4 mV/K × 165 K), resulting in a regulation range of 23.47 V to 30.53 V. This must be accounted for in system-level tolerance budgets, especially in precision reference applications.
Can the BZX84J-C27,135 be used in parallel for higher power dissipation?
No-Zener diodes exhibit negative temperature coefficients below ~5 V and positive above, but even within the same batch, slight VZ mismatches cause current hogging. Parallel operation is not recommended; use a single higher-power device or active regulation instead.
Is the SOD323F package compatible with standard reflow soldering profiles for lead-free assembly?
Yes-the device is qualified for lead-free reflow per JEDEC J-STD-020, with peak temperature up to 260 °C. The recommended footprint matches Nexperia's SC-90 land pattern (0.5 mm pad width, 0.6 mm spacing), ensuring reliable solder joint formation.
BZX84J-C27,135 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-C27,135 FAQ
1.How can I place an order for BZX84J-C27,135 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84J-C27,135 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-C27,135 reliable?
The price and inventory of BZX84J-C27,135 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84J-C27,135 is usually 5 days.
3.What payment methods are accepted for BZX84J-C27,135?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84J-C27,135 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84J-C27,135?
BZX84J-C27,135 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84J-C27,135 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-C27,135?
For technical support, including BZX84J-C27,135 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84J-C27,135 requirements.
6.How does Aetrix verify that BZX84J-C27,135 is sourced from the original manufacturer or authorized distributors?
All BZX84J-C27,135 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-C27,135 meets industry standards.
7.What is the process for return or replacement of BZX84J-C27,135?
All BZX84J-C27,135 units undergo pre-shipment inspection (PSI). If there is an issue with BZX84J-C27,135, 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-C27,135 part is unused and in its original packaging.
Return procedure for BZX84J-C27,135:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84J-C27,135 Tags
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