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Nexperia USA Inc. BZB84-C16-QR
- Part No.:
- BZB84-C16-QR
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Zener Diode Arrays
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZB84-C16-QR.pdf
- Description:
- BZB84-C16-Q/SOT23/TO-236AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,582
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Product details
Overview
BZB84-C16-QR from Nexperia is a dual Zener diode in SOT23 package with common-anode configuration, rated for 16 V nominal Zener voltage (±5 % tolerance), 300 mW total power dissipation, and AEC-Q101 qualification for automotive voltage regulation and clamping functions.
For engineers reviewing the BZB84-C16-QR datasheet, BZB84-C16-QR pinout, BZB84-C16-QR application, or BZB84-C16-QR equivalent, this device serves as a space-constrained, dual-rail voltage reference or overvoltage clamp in automotive body control modules, sensor interface protection circuits, and dual-supply rail monitoring systems.
Technical Context
This dual-common-anode Zener diode integrates two independent Zener junctions sharing a single anode terminal (Pin 3), enabling compact dual-voltage regulation or bidirectional transient suppression without external node routing. Each cathode (Pins 1 and 2) operates independently under reverse bias.
It delivers stable 16 V regulation at IZ = 5 mA with typical differential resistance of 200 Ω, temperature coefficient of +10.4 to +14.0 mV/K, and low reverse leakage (<0.05 μA at VR = 12.8 V), supporting precision clamping in thermally varying environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 15.3 V to 17.1 V at IZ = 5 mA - defines clamping threshold for dual-rail overvoltage protection |
| Tolerance | ±5 % - C-grade accuracy suitable for non-critical regulation where cost and footprint are prioritized |
| Total Power Dissipation | 300 mW at Tamb ≤ 25 °C - limits continuous thermal load on FR4 PCB with standard footprint |
| Non-repetitive Peak Power | 40 W (tp = 100 µs) - enables robust ESD/ISO 7637-2 pulse suppression without derating |
| Differential Resistance | 200 Ω max at IZ = 5 mA - determines regulation stiffness and output impedance in feedback paths |
| Reverse Leakage Current | <0.05 µA at VR = 12.8 V - ensures minimal standby current in always-on automotive circuits |
| Junction Temperature | 150 °C max - supports operation in under-hood ECUs and high-ambient industrial controllers |
Pinout & Package
SOT23 plastic surface-mount package (2.9 mm × 1.3 mm × 1.0 mm body, 1.9 mm pitch); optimized for reflow soldering per IPC-7095 guidelines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (Diode 1) | Connects to regulated or clamped node requiring 16 V reference; reverse-biased during Zener operation |
| 2 | Cathode (Diode 2) | Independent 16 V clamping path; enables dual-rail or redundant protection without shared cathode routing |
| 3 | Common Anode | Single tie-point for both Zener anodes; simplifies PCB layout and reduces net count in dual-supply designs |
Key Features
| Feature | Design Value |
|---|---|
| Dual-common-anode topology | Reduces component count and board area by 50 % vs. two discrete SOT23 Zeners in shared-anode configurations |
| AEC-Q101 qualification | Validated for automotive use including temperature cycling, HTRB, and ESD testing per JESD22-A114 |
| ±5 % Zener tolerance (C grade) | Meets cost-sensitive automotive module requirements where tight regulation is secondary to reliability and footprint |
| 40 W non-repetitive surge rating | Withstands ISO 7637-2 Pulse 1 (inductive load dump) and Pulse 2a (supply interruption) without failure |
| Low thermal resistance (Rth(j-sp) = 100 K/W) | Enables efficient heat transfer to solder joints, sustaining 300 mW dissipation without heatsinking |
Applications
| Automotive Body Control Module (BCM) | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Regulating 12 V supply rails feeding microcontroller I/O buffers and LIN transceivers in door modules. IC Role / Device Role / Timing Role: Dual Zener provides simultaneous 16 V overvoltage clamp on VCC and CAN transceiver VIO lines using shared anode. Use Value: Prevents latch-up during load-dump events while occupying <1.5 mm² PCB area-critical for space-constrained mirror or seat control PCBs. |
Use Scenario: Protecting analog front-end inputs of 24-bit delta-sigma ADCs from field-induced transients in factory-floor pressure sensors. IC Role / Device Role / Timing Role: Clamps differential input pins to ±16 V relative to AGND, leveraging dual cathodes for symmetrical rail limiting. Use Value: Maintains signal integrity below 1 LSB error during 1 kV EFT bursts, eliminating need for external TVS arrays. |
| Automotive HVAC Blower Control | Medical Infusion Pump Power Monitoring |
Use Scenario: Stabilizing gate drive voltage for N-channel MOSFET half-bridge driving 24 V blower motor in climate control units. IC Role / Device Role / Timing Role: Provides 16 V Zener reference for bootstrap capacitor charging circuit and overvoltage detection on high-side driver supply. Use Value: Ensures MOSFET remains in saturation during PWM switching, reducing conduction losses by >12 % versus generic 15 V Zener alternatives. |
Use Scenario: Monitoring battery voltage and auxiliary 5 V rail in portable infusion pumps requiring IEC 60601-1 compliance. IC Role / Device Role / Timing Role: Dual Zener acts as fail-safe undervoltage/overvoltage detector for MCU reset logic and pump motor enable circuitry. Use Value: Guarantees shutdown within 20 ms of 16.5 V overvoltage, meeting Class BF patient-connected equipment safety timing requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor NZX16C | Single Zener in DO-35; no dual configuration or SOT23 footprint | Requires two devices and extra routing for dual-rail use; lacks AEC-Q101 qualification | Select only if through-hole assembly is mandated and dual functionality is implemented externally |
| Vishay BZX84-C16 | Single Zener in SOT23; identical 16 V ±5 % spec but no second cathode | Cannot perform simultaneous dual-rail clamping; needs external anode tie for pseudo-dual use | Choose when only one regulated rail is needed and board area allows discrete placement of two units |
Compared with BZB84-C16-QR, NZX16C and BZX84-C16 lack integrated dual-cathode architecture and automotive qualification-making them unsuitable for space-constrained, safety-critical dual-rail applications where common-anode layout efficiency and AEC-Q101 traceability are mandatory.
Availability
BZB84-C16-QR is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, and medical power monitoring systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for BZB84-C16-QR 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, reliable discrete, logic, and MOSFET devices with focus on automotive, industrial, and mobile markets.
The BZB84-Q series belongs to Nexperia's AEC-Q101-qualified Zener diode portfolio, engineered specifically for dual-rail voltage regulation and transient suppression in automotive control units where SMT footprint efficiency and thermal robustness are critical.
FAQ
What is the maximum continuous reverse current for BZB84-C16-QR at 25 °C ambient?
The device supports up to 200 mA forward current per diode, but continuous reverse (Zener) current is limited by thermal design. At Tamb = 25 °C on FR4 PCB, maximum continuous IZ is approximately 18.75 mA, derived from Ptot = 300 mW and VZ ≈ 16 V. Derating is required above 25 °C per Rth(j-a) = 417 K/W.
Can BZB84-C16-QR be used for bidirectional ESD protection?
No-BZB84-C16-QR is a unidirectional Zener diode pair with common anode; it conducts only in reverse bias. For bidirectional ESD clamping, a dedicated TVS array like PESD5V0S1BA is required. This device provides only positive-rail overvoltage clamping relative to the common anode node.
How does the temperature coefficient affect regulation accuracy over -40 °C to +125 °C?
At 16 V nominal, the temperature coefficient is +10.4 to +14.0 mV/K. Over a 165 K range, this introduces ±1.7 V to ±2.3 V drift-meaning regulation shifts from ~14.3 V at -40 °C to ~18.3 V at +125 °C. System-level compensation or tighter-tolerance references are needed for sub-±1 % stability.
Is the marking code 'PB%' on the SOT23 package confirmed for BZB84-C16-QR?
Yes-per Table 4 of the datasheet, BZB84-C16-Q is marked 'PB%' on the top surface of the SOT23 package. This 3-character code uniquely identifies the 16 V ±5 % variant within the BZB84-Q series and is laser-etched for automated optical inspection compatibility.
BZB84-C16-QR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- BZB84-Q
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Configuration:
- 1 Pair Common Anode
- Voltage - Zener (Nom) (Vz):
- 16 V
- Tolerance:
- ±5%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 40 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 11.2 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
BZB84-C16-QR FAQ
1.How can I place an order for BZB84-C16-QR through Aetrix?
Please submit a Request for Quotation (RFQ) for BZB84-C16-QR 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 BZB84-C16-QR reliable?
The price and inventory of BZB84-C16-QR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZB84-C16-QR is usually 5 days.
3.What payment methods are accepted for BZB84-C16-QR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZB84-C16-QR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZB84-C16-QR?
BZB84-C16-QR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZB84-C16-QR 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 BZB84-C16-QR?
For technical support, including BZB84-C16-QR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZB84-C16-QR requirements.
6.How does Aetrix verify that BZB84-C16-QR is sourced from the original manufacturer or authorized distributors?
All BZB84-C16-QR 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 BZB84-C16-QR meets industry standards.
7.What is the process for return or replacement of BZB84-C16-QR?
All BZB84-C16-QR units undergo pre-shipment inspection (PSI). If there is an issue with BZB84-C16-QR, 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 BZB84-C16-QR part is unused and in its original packaging.
Return procedure for BZB84-C16-QR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZB84-C16-QR Tags
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MMBZ18VALT1G
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AZ23C18-7-F
Diodes Incorporated
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MMBZ6V2ALT1G
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MMBZ5V6ALT3G
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MMBZ33VALT1G
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MMBZ9V1ALT1G
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MMBZ20VALT1G
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MMBZ15VALT1G
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MMBZ12VALT1G
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