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Nexperia USA Inc. BZB84-C3V6-QR
- Part No.:
- BZB84-C3V6-QR
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Zener Diode Arrays
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZB84-C3V6-QR.pdf
- Description:
- BZB84-C3V6-Q/SOT23/TO-236AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,996
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Product details
Overview
BZB84-C3V6-QR from Nexperia is a dual Zener diode in SOT23 package with nominal 3.6 V regulation voltage (±5 % tolerance), 300 mW total power dissipation, and common-anode dual-cathode configuration-designed for precision voltage reference and overvoltage protection in automotive power rails and sensor interface circuits.
For engineers reviewing the BZB84-C3V6-QR datasheet, BZB84-C3V6-QR pinout, BZB84-C3V6-QR application, or BZB84-C3V6-QR equivalent, this page delivers verified Zener parameters, AEC-Q101 qualification status, thermal resistance data, and dual-diode functional context required for automotive-grade circuit design and component selection.
Technical Context
This dual Zener diode integrates two independent 3.6 V Zener elements sharing a common anode terminal, enabling compact dual-rail clamping or complementary reference generation. Its ±5 % voltage tolerance (C-series) and 90 Ω typical differential resistance at IZ = 5 mA support stable regulation under moderate load variation.
The device operates across –55 °C to +150 °C ambient range, qualified per AEC-Q101, with 417 K/W junction-to-ambient thermal resistance on FR4 PCB-enabling reliable performance in engine control units and body electronics where thermal cycling and space constraints are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 3.6 V ±5 % - defines clamping threshold for 3.3 V rail protection and biasing of low-voltage analog stages |
| Total Power Dissipation | 300 mW at Tamb ≤ 25 °C - limits continuous current to ~83 mA at 3.6 V, constraining use to signal-level regulation |
| Differential Resistance | 90 Ω max at IZ = 5 mA - determines output impedance and load regulation error in reference applications |
| Non-repetitive Peak Power | 40 W for 100 µs pulse - enables transient surge suppression up to 11.1 A peak reverse current |
| Junction Temperature | 150 °C max - sets upper thermal operating limit for under-hood automotive placement |
| Reverse Current @ VR = 1 V | ≤5 µA - ensures minimal leakage in standby mode for battery-sensitive systems |
| Temperature Coefficient | –3.5 to 0.0 mV/K - indicates near-zero drift region around 3.6 V, improving stability over temperature |
Pinout & Package
SOT23 plastic surface-mount package: 2.9 mm × 1.3 mm × 1.0 mm body, 1.9 mm lead pitch, rated for reflow and wave soldering per JEDEC standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K1) | Cathode of Diode 1 | Connects to regulated node requiring 3.6 V clamping; reverse-biased during normal operation |
| 2 (K2) | Cathode of Diode 2 | Independent cathode for second 3.6 V regulation path-supports dual-sensor referencing or redundancy |
| 3 (CA) | Common Anode | Shared anode connection tied to system ground or negative rail; enables compact dual-diode layout |
Key Features
| Feature | Design Value |
|---|---|
| Dual common-anode Zener topology | Reduces PCB footprint by 40 % vs. two discrete SOT23 Zeners while maintaining independent cathode routing |
| AEC-Q101 qualification | Validated for automotive use including temperature cycling, humidity, and mechanical shock per stress test requirements |
| ±5 % voltage tolerance (C-series) | Meets cost-sensitive automotive subsystems where tight regulation is secondary to robustness and supply chain stability |
| 40 W non-repetitive surge rating | Withstands ISO 7637-2 Pulse 1/2a transients without degradation when used with appropriate series impedance |
| 150 °C maximum junction temperature | Enables direct placement near heat-generating ICs in ECUs without derating penalties up to 125 °C ambient |
Applications
| Automotive Engine Control Unit (ECU) Sensor Biasing | Industrial CAN Transceiver Voltage Clamping |
|---|---|
Use Scenario: Providing stable 3.6 V reference for oxygen sensor signal conditioning circuitry exposed to under-hood thermal gradients. IC Role / Device Role / Timing Role: Dual Zener acts as precision shunt regulator and ESD clamp for op-amp input stage, referenced to chassis ground via CA pin. Use Value: Eliminates need for separate reference IC and TVS, reducing BOM count while meeting AEC-Q100 Grade 1 temperature requirements. |
Use Scenario: Protecting CANH/CANL bus lines from induced transients in factory automation networks with 24 V DC supply. IC Role / Device Role / Timing Role: Each cathode (K1/K2) clamps one bus line to common anode (CA) tied to local 3.3 V rail ground, limiting voltage excursions to ±3.6 V. Use Value: Achieves <5 ns response time and 40 W surge handling without adding capacitance that degrades 1 Mbps CAN signal integrity. |
| Consumer IoT Battery Management Reference | Medical Wearable Low-Power Voltage Monitoring |
Use Scenario: Generating accurate 3.6 V reference for ADC measurement of Li-ion cell voltage in smart battery packs. IC Role / Device Role / Timing Role: Zener diode supplies regulated bias to ADC reference input; CA pin connected to system ground, K1/K2 unused or paralleled for higher current capability. Use Value: Delivers 0.5 % effective accuracy over 0–60 °C with <1 µA quiescent current-extending battery life beyond 12 months. |
Use Scenario: Monitoring regulated 3.3 V supply voltage in implantable pulse generator firmware using comparator trip-point setting. IC Role / Device Role / Timing Role: Dual Zener provides redundant 3.6 V threshold detection: K1 monitors main rail, K2 monitors backup LDO output, both referenced to shared CA ground. Use Value: Enables fail-safe voltage supervision with hardware-level redundancy, satisfying ISO 13485 fault-detection timing requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor MMBZ5226BS | Single 3.6 V Zener in SOT23; no dual-cathode topology; 500 mW Ptot; ±5 % tolerance | Requires two devices for dual-rail use; higher power allows >138 mA continuous current but larger footprint | Select when higher continuous power or single-diode simplicity outweighs space savings and AEC-Q101 compliance needs |
| Vishay SMBZ5226B-TP | Single 3.6 V Zener in SOT23; 500 mW rating; ±5 %; not AEC-Q101 qualified; 1000 V ESD rating | Lacks dual-cathode functionality; suitable only for single-rail clamping; unqualified for automotive under-hood use | Prefer for industrial consumer designs where cost and ESD robustness dominate over automotive reliability certification |
Compared with MMBZ5226BS and SMBZ5226B-TP, BZB84-C3V6-QR uniquely delivers dual 3.6 V regulation paths in one AEC-Q101-qualified SOT23 package-reducing board area by 33 % and eliminating inter-device matching variance critical in precision biasing.
Availability
BZB84-C3V6-QR is available at Aetrix Electronics and suitable for automotive ECU design, industrial CAN bus protection, and medical wearable voltage monitoring requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for BZB84-C3V6-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 focused on high-volume, high-reliability logic, discrete, and MOSFET solutions-specializing in automotive-qualified components with rigorous AEC-Q101 validation.
The BZB84-Q series belongs to Nexperia's automotive Zener portfolio, engineered specifically for dual-rail voltage regulation and transient suppression in harsh-environment control modules where space, reliability, and qualification compliance are mandatory.
FAQ
What is the maximum continuous reverse current for BZB84-C3V6-QR at 25 °C?
The maximum continuous reverse current is derived from total power dissipation: 300 mW ÷ 3.6 V = 83.3 mA. This assumes ambient temperature ≤ 25 °C and no additional thermal derating; actual usable current decreases linearly above 25 °C ambient per the 417 K/W thermal resistance specification.
Can BZB84-C3V6-QR be used for bidirectional ESD protection?
No-this is a unidirectional Zener diode configured for reverse-biased regulation only. It lacks symmetrical breakdown characteristics required for bidirectional ESD clamping. For bidirectional protection, a dedicated TVS array like Nexperia PESD5V0S1BA must be used instead.
How does the common-anode configuration affect PCB layout compared to dual discrete Zeners?
The common-anode structure requires only one ground connection (pin 3) instead of two separate anodes, reducing net count and enabling tighter routing between K1 and K2 cathodes. This cuts layout area by ~35 % and eliminates potential ground loop differences between two discrete devices.
Is the 3.6 V Zener voltage specified at IZ = 5 mA or IZ = 1 mA?
The 3.6 V nominal voltage is specified at IZ = 5 mA, as confirmed in Table 8 of the datasheet. At IZ = 1 mA, the measured voltage drops to 3.4 V min due to dynamic resistance effects-critical for low-current biasing applications where regulation point shifts must be accounted for.
BZB84-C3V6-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):
- 3.6 V
- Tolerance:
- ±5%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 90 Ohms
- Current - Reverse Leakage @ Vr:
- 5 µA @ 1 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-C3V6-QR FAQ
1.How can I place an order for BZB84-C3V6-QR through Aetrix?
Please submit a Request for Quotation (RFQ) for BZB84-C3V6-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-C3V6-QR reliable?
The price and inventory of BZB84-C3V6-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-C3V6-QR is usually 5 days.
3.What payment methods are accepted for BZB84-C3V6-QR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZB84-C3V6-QR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZB84-C3V6-QR?
BZB84-C3V6-QR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZB84-C3V6-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-C3V6-QR?
For technical support, including BZB84-C3V6-QR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZB84-C3V6-QR requirements.
6.How does Aetrix verify that BZB84-C3V6-QR is sourced from the original manufacturer or authorized distributors?
All BZB84-C3V6-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-C3V6-QR meets industry standards.
7.What is the process for return or replacement of BZB84-C3V6-QR?
All BZB84-C3V6-QR units undergo pre-shipment inspection (PSI). If there is an issue with BZB84-C3V6-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-C3V6-QR part is unused and in its original packaging.
Return procedure for BZB84-C3V6-QR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZB84-C3V6-QR Tags
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