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NXP Semiconductors BZX84-C36/LF1VL
- Part No.:
- BZX84-C36/LF1VL
- Manufacturer:
- NXP Semiconductors
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZX84-C36/LF1VL.pdf
- Description:
- DIODE ZENER 36V 250MW SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:8,581
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Product details
Overview
BZX84-C36/LF1VL from NXP Semiconductors is a ±5 % tolerance Zener voltage regulator diode in SOT23 (TO-236AB) package, rated for 36 V nominal breakdown voltage at 2 mA, 250 mW total power dissipation, and AEC-Q101 qualified for automotive use. It provides stable reference voltage in low-power supply regulation and overvoltage protection circuits.
For engineers reviewing the BZX84-C36/LF1VL datasheet, BZX84-C36/LF1VL pinout, BZX84-C36/LF1VL application, or BZX84-C36/LF1VL equivalent, key selection criteria include its 34.0–38.0 V Zener voltage range, 80 Ω typical differential resistance at 2 mA, 0.05 μA reverse current at 27.4 V, AEC-Q101 qualification, and SOT23 thermal performance with Rth(j-a) = 500 K/W.
Technical Context
This device operates as a two-terminal shunt voltage regulator, maintaining a stable output by conducting reverse current when applied voltage exceeds its Zener breakdown threshold. Its design supports precision biasing and voltage clamping in space-constrained PCB layouts.
It features a non-repetitive peak reverse power dissipation of 40 W (100 μs pulse), junction temperature range from −65 °C to +150 °C, and thermal resistance from junction to ambient of 500 K/W on FR4 PCB with single-sided copper.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 34.0 V min to 38.0 V max at IZ = 2 mA - defines usable regulation window under standard test conditions |
| Differential Resistance (rdif) | 80 Ω typ at IZ = 2 mA - determines regulation stiffness and output impedance in feedback paths |
| Reverse Current (IR) | 0.05 μA max at VR = 27.4 V - ensures minimal leakage below regulation threshold |
| Total Power Dissipation (Ptot) | 250 mW max at Tamb ≤ 25 °C - sets continuous DC power limit without derating |
| Forward Voltage (VF) | 0.9 V max at IF = 10 mA - relevant for polarity-check or series-diode applications |
| Temperature Coefficient (SZ) | 25.2 to 30.4 mV/K - quantifies VZ drift per degree Celsius near 36 V nominal |
| Non-repetitive Peak Reverse Current (IZSM) | 0.8 A max at tp = 100 μs - supports transient surge suppression capability |
Pinout & Package
SOT23 (TO-236AB) plastic surface-mounted package with 3 leads; 2.8 mm × 1.4 mm footprint, 1.1 mm height, and standard 0.95 mm lead pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (A) | Connected to lower-potential node in shunt regulation; reverse-biased during normal operation |
| 2 | Not Connected (n.c.) | Internal die pad with no electrical connection; must remain unconnected on PCB |
| 3 | Cathode (K) | Connected to higher-potential node; carries reverse current during regulation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| ±5 % Zener voltage tolerance | Cost-optimized tolerance band suitable for non-critical reference and clamping functions |
| Low-profile SOT23 package | Enables high-density routing and automated assembly on compact PCBs |
| 250 mW power rating | Supports continuous regulation in low-current signal conditioning and sensor interface circuits |
| 500 K/W thermal resistance (j-a) | Allows direct thermal modeling on standard FR4 boards without heatsinking |
Applications
| Automotive Body Control Module (BCM) | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Voltage clamping on LIN bus transceiver input to prevent ESD-induced latch-up. IC Role / Device Role / Timing Role: Shunt protection element absorbing transient energy while holding line voltage ≤38 V. Use Value: Leverages 0.8 A non-repetitive peak reverse current and AEC-Q101 qualification for robust field operation. |
Use Scenario: Providing stable 36 V reference for 4–20 mA transmitter loop calibration. IC Role / Device Role / Timing Role: Precision Zener reference source with <30 mV/K tempco for analog front-end biasing. Use Value: Delivers 34–38 V regulation window and 80 Ω rdif to minimize load-induced error in 2 mA bias networks. |
| Consumer Power Adapter Feedback | Medical Diagnostic Equipment Power Rails |
Use Scenario: Secondary-side voltage sensing in flyback converter feedback path. IC Role / Device Role / Timing Role: Zener-based optocoupler biasing node establishing regulated 36 V reference for TL431 replacement. Use Value: Uses 250 mW Ptot and 0.05 μA IR to maintain accuracy across 0–50 °C ambient without active compensation. |
Use Scenario: Overvoltage protection on isolated auxiliary 36 V rail powering analog acquisition circuitry. IC Role / Device Role / Timing Role: Fail-safe shunt limiter preventing damage to ADC references and op-amps during supply fault. Use Value: Relies on 40 W non-repetitive peak power rating and −65 to +150 °C Tj range for safety-critical redundancy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor MMBZ5226BLT1G | 36 V nominal, ±5 %, 200 mW Ptot, 100 Ω rdif, no AEC-Q101 qualification | Limited to commercial-temperature industrial use; not validated for automotive vibration/thermal stress | Select when cost sensitivity outweighs automotive qualification requirements |
| Vishay BZX84-C36-TP | 36 V nominal, ±5 %, 300 mW Ptot, 75 Ω rdif, AEC-Q101 qualified, same SOT23 package | Higher power margin enables longer surge handling; tighter rdif improves regulation stability | Prefer for designs requiring extended thermal headroom or improved dynamic regulation |
Compared with MMBZ5226BLT1G, BZX84-C36/LF1VL offers automotive qualification and lower differential resistance; versus BZX84-C36-TP, it trades 50 mW lower power rating for NXP's established automotive supply chain traceability and consistent marking code (*T7).
Availability
BZX84-C36/LF1VL is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, and medical auxiliary power rails requiring stable component supply with full AEC-Q101 compliance and long-term lifecycle support.
Supply support for BZX84-C36/LF1VL 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
NXP Semiconductors is a global semiconductor company specializing in secure connectivity solutions for automotive, industrial, and IoT applications, with headquarters in Eindhoven, Netherlands.
The BZX84 series was designed specifically for cost-sensitive, space-constrained voltage regulation and protection in automotive ECUs and industrial control systems, emphasizing AEC-Q101 reliability and SOT23 manufacturability.
FAQ
What is the Zener voltage tolerance of BZX84-C36/LF1VL?
BZX84-C36/LF1VL has a nominal Zener voltage of 36 V with a tolerance of approximately ±5 %, resulting in a guaranteed breakdown voltage range of 34.0 V to 38.0 V at 2 mA test current. This tolerance aligns with the "C" grade designation in the BZX84 family and is confirmed in Table 9 of the NXP datasheet Rev. 6.
Is BZX84-C36/LF1VL qualified for automotive applications?
Yes, BZX84-C36/LF1VL is AEC-Q101 qualified, as explicitly stated in Section 8.1 of the NXP product data sheet. This qualification covers stress tests including high-temperature reverse bias, temperature cycling, and ESD, making it suitable for use in automotive body control modules and powertrain subsystems.
What is the maximum forward current rating for BZX84-C36/LF1VL?
The absolute maximum forward current for BZX84-C36/LF1VL is 200 mA, per Table 5 (Limiting Values) in the NXP datasheet. However, typical forward operation occurs at ≤10 mA (VF ≤ 0.9 V), as forward conduction is not its primary functional mode-reverse Zener breakdown is the intended operating region.
How does the thermal resistance of BZX84-C36/LF1VL affect PCB layout?
BZX84-C36/LF1VL has a junction-to-ambient thermal resistance (Rth(j-a)) of 500 K/W when mounted on a standard FR4 PCB with single-sided copper. This value assumes no thermal vias or copper pour; adding 2–4 thermal vias under the cathode pad can reduce Rth(j-a) by ~30 %, directly improving sustained power handling in BZX84-C36/LF1VL designs.
What marking code identifies BZX84-C36/LF1VL on the device body?
BZX84-C36/LF1VL is marked with the code *T7, as specified in Table 4 (Marking codes) of the NXP datasheet. The asterisk (*) serves as a placeholder for the manufacturing site code, and "T7" uniquely identifies the 36 V, ±5 %, C-grade variant within the BZX84 series.
BZX84-C36/LF1VL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 36 V
- Tolerance:
- ±5%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 90 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 23.1 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -65°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23 (TO-236AB)
BZX84-C36/LF1VL FAQ
1.How can I place an order for BZX84-C36/LF1VL through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84-C36/LF1VL 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 BZX84-C36/LF1VL reliable?
The price and inventory of BZX84-C36/LF1VL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84-C36/LF1VL is usually 5 days.
3.What payment methods are accepted for BZX84-C36/LF1VL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84-C36/LF1VL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84-C36/LF1VL?
BZX84-C36/LF1VL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84-C36/LF1VL 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 BZX84-C36/LF1VL?
For technical support, including BZX84-C36/LF1VL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84-C36/LF1VL requirements.
6.How does Aetrix verify that BZX84-C36/LF1VL is sourced from the original manufacturer or authorized distributors?
All BZX84-C36/LF1VL 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 BZX84-C36/LF1VL meets industry standards.
7.What is the process for return or replacement of BZX84-C36/LF1VL?
All BZX84-C36/LF1VL units undergo pre-shipment inspection (PSI). If there is an issue with BZX84-C36/LF1VL, 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 BZX84-C36/LF1VL part is unused and in its original packaging.
Return procedure for BZX84-C36/LF1VL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84-C36/LF1VL Tags
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BZT52C5V6T-7
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MMSZ5231B-7-F
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BZX84C3V3LT1G
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MMSZ5245BS-7-F
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MMSZ4682T1G
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BZT52C15S-7-F
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MM5Z5V1ST1G
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