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Nexperia USA Inc. BZX884-C18,315
- Part No.:
- BZX884-C18,315
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-882
- Datasheet:
-
BZX884-C18,315.pdf
- Description:
- DIODE ZENER 18V 250MW DFN1006-2
- Quantity:
- Payment:
- Shipping:
Inventory:10,850
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Product details
Overview
BZX884-C18,315 from Nexperia is a ±5% tolerance Zener diode in SOD882 (DFN1006-2) package, rated for 18 V nominal regulation at 5 mA, with 250 mW total power dissipation and 50 Ω typical differential resistance at IZ = 2 mA. It delivers stable voltage reference and overvoltage clamping in space-constrained consumer and automotive electronics.
For engineers reviewing the BZX884-C18,315 datasheet, BZX884-C18,315 pinout, BZX884-C18,315 application, or BZX884-C18,315 equivalent, this page provides verified Zener voltage, tolerance, thermal resistance, reverse leakage, and AEC-Q101 qualification status - all critical for ESD protection, low-power biasing, and precision regulation design.
Technical Context
This Zener diode operates in reverse breakdown to maintain a stable 18 V reference across load variations, with temperature coefficient of +14.4 mV/K at IZ = 2 mA. Its ultra-small DFN1006-2 footprint enables high-density PCB layouts while maintaining 150 °C maximum junction temperature capability.
Designed for surface-mount assembly using reflow only, it features cathode identification via marking bar, 200 mA absolute maximum forward current, and non-repetitive peak reverse surge current of 1.5 A (tp = 100 µs). Reverse leakage is limited to 100 nA at VR = 12.6 V (0.7 × VZnom).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 17.64 V to 18.36 V at IZ = 2 mA - defines regulation window under standard test conditions |
| Tolerance | ±5% - specifies allowable deviation from nominal 18 V for production binning and circuit margining |
| Differential Resistance (rdiff) | 50 Ω typical at IZ = 2 mA - determines output impedance and regulation sensitivity to current changes |
| Power Dissipation (Ptot) | 250 mW at Tamb ≤ 25 °C on FR4 PCB - sets maximum continuous thermal load without derating |
| Reverse Leakage (IR) | 100 nA max at VR = 12.6 V - ensures minimal standby current in high-impedance bias networks |
| Thermal Resistance (Rth(j-a)) | 500 K/W - quantifies junction-to-ambient heat transfer efficiency on standard single-sided FR4 layout |
| Package | SOD882 (DFN1006-2), 1.0 × 0.6 × 0.5 mm - enables 0201-class board area usage with solderable side terminals |
Pinout & Package
SOD882 (DFN1006-2) is a leadless, ultra-small surface-mount plastic package with two terminals and a transparent top view. The cathode is marked by a visible bar on the device top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; reverse-biased terminal where Zener breakdown occurs |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes reverse-bias path for regulation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| Ultra-small SOD882 footprint | 1.0 × 0.6 mm body size enables placement in tight spaces such as portable sensor modules and infotainment PCBs |
| Low differential resistance | 50 Ω typical improves regulation accuracy under varying load currents in feedback networks |
| Controlled temperature coefficient | +14.4 mV/K allows predictable drift compensation in temperature-sensitive analog circuits |
| ESD ultra-high-speed switching | Sub-nanosecond response supports IEC 61000-4-2 level 4 transient suppression in USB and data lines |
Applications
| Power Supply Rail Clamping | Reference Voltage Generation |
|---|---|
|
Use Scenario: Protecting 18 V DC input rails in automotive body control modules from load dump transients. IC Role / Device Role / Timing Role: Zener diode operating in reverse breakdown to clamp voltage spikes above 18.4 V. Use Value: Limits peak rail voltage to within safe operating range of downstream LDOs and microcontrollers without requiring external TVS arrays. |
Use Scenario: Providing stable 18 V bias for op-amp comparators in industrial sensor signal conditioning circuits. IC Role / Device Role / Timing Role: Precision voltage reference source with ±5% tolerance and low tempco for analog threshold setting. Use Value: Enables consistent trip-point accuracy across −40 °C to +125 °C ambient without trimming or calibration. |
| ESD Protection for Data Lines | Overvoltage Detection in Battery Management |
|
Use Scenario: Safeguarding CAN FD transceiver I/O pins against electrostatic discharge events per IEC 61000-4-2. IC Role / Device Role / Timing Role: Fast-switching Zener clamp placed between signal line and ground to shunt ESD current. Use Value: Achieves <1 ns response time and absorbs up to 1.5 A surge (100 µs pulse), preventing latch-up in transceivers. |
Use Scenario: Monitoring 16–20 V lithium iron phosphate (LiFePO4) battery packs for overvoltage fault detection. IC Role / Device Role / Timing Role: Zener-based comparator reference that triggers shutdown when cell voltage exceeds 18.36 V. Use Value: Provides deterministic, passive overvoltage threshold with no active components or supply dependency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX884-B18,315 | ±2% tolerance (17.64–18.36 V vs. same range), 40 Ω rdiff, +12.4 mV/K tempco | Higher precision required in voltage reference circuits where 1% drift matters | Select for tighter regulation in analog measurement front-ends; requires higher cost and longer lead times |
| MMSZ5245B-7-F | SOD-123 package (2.7 × 1.6 mm), ±5% tolerance, 18 V nominal, 200 mW Ptot, 30 Ω rdiff | Preferred where legacy footprint compatibility or higher surge rating is needed | Choose when board redesign is impractical; larger size accommodates higher thermal mass but consumes 4× board area |
Compared with BZX884-C18,315, the BZX884-B18,315 offers tighter tolerance and lower dynamic impedance for improved reference stability, while MMSZ5245B-7-F trades miniaturization for mechanical robustness and slightly better surge handling in less space-constrained designs.
Availability
BZX884-C18,315 is available at Aetrix Electronics and suitable for automotive ECUs, portable medical sensors, industrial IoT gateways, and consumer wearables requiring stable component supply with AEC-Q101 assurance and traceable sourcing.
Supply support for BZX884-C18,315 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 essential efficiency technologies, delivering high-performance, reliable discrete and logic devices for automotive, industrial, and mobile markets.
The BZX884 series belongs to Nexperia's general-purpose Zener diode product line, engineered for compact, high-reliability voltage regulation and ESD protection in space- and power-constrained applications.
FAQ
What is the maximum reverse voltage before breakdown for BZX884-C18,315?
The BZX884-C18,315 exhibits Zener breakdown at a nominal 18 V, with guaranteed regulation between 17.64 V and 18.36 V at IZ = 2 mA. Below 12.6 V (0.7 × VZnom), reverse leakage remains ≤100 nA - no hard "maximum reverse voltage" is defined outside its specified operating range.
Can BZX884-C18,315 be used in place of a 1N4746A?
No - the 1N4746A is a 18 V, 1 W through-hole Zener in DO-41 package, while BZX884-C18,315 is a 250 mW, SOD882 surface-mount device. Direct substitution requires verifying thermal design, surge capability (1.5 A vs. ~4 A), and PCB footprint compatibility; electrical regulation specs are similar but not functionally interchangeable without layout and reliability review.
Is the SOD882 package compatible with standard reflow profiles?
Yes - Nexperia specifies reflow soldering as the only recommended method for SOD882. The package supports JEDEC J-STD-020-compliant profiles, with peak temperatures up to 260 °C and time above liquidus of 60–90 seconds. Footprint dimensions (0.7 × 0.3 mm pads, 0.5 mm pitch) are documented in Figure 12 of the datasheet.
Does BZX884-C18,315 support bidirectional ESD protection?
No - it is a unidirectional Zener diode configured for reverse-bias operation only. For bidirectional ESD protection, paired devices or dedicated TVS diodes like PESD5V0S1BA must be used. Its cathode-anode polarity is fixed, and forward conduction is limited to 0.9 V at 10 mA.
BZX884-C18,315 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SOD-882
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 18 V
- Tolerance:
- ±5%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 45 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 12.6 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -65°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DFN1006-2
BZX884-C18,315 FAQ
1.How can I place an order for BZX884-C18,315 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX884-C18,315 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 BZX884-C18,315 reliable?
The price and inventory of BZX884-C18,315 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX884-C18,315 is usually 5 days.
3.What payment methods are accepted for BZX884-C18,315?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX884-C18,315 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX884-C18,315?
BZX884-C18,315 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX884-C18,315 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 BZX884-C18,315?
For technical support, including BZX884-C18,315 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX884-C18,315 requirements.
6.How does Aetrix verify that BZX884-C18,315 is sourced from the original manufacturer or authorized distributors?
All BZX884-C18,315 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 BZX884-C18,315 meets industry standards.
7.What is the process for return or replacement of BZX884-C18,315?
All BZX884-C18,315 units undergo pre-shipment inspection (PSI). If there is an issue with BZX884-C18,315, 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 BZX884-C18,315 part is unused and in its original packaging.
Return procedure for BZX884-C18,315:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX884-C18,315 Tags
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MMBZ5240B-7-F
Diodes Incorporated
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BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
Diodes Incorporated
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BZT52C15-7-F
Diodes Incorporated
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BZX84C3V3LT1G
onsemi
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MMSZ5245BS-7-F
Diodes Incorporated
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MMSZ4682T1G
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BZT52C15S-7-F
Diodes Incorporated
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MM5Z5V1ST1G
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SMAJ4744A-TP
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BZT52C3V6LP-7
Diodes Incorporated
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SMAZ12-13-F
Diodes Incorporated
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