Diodes Incorporated BZX84C5V1T-7-F
- Part No.:
- BZX84C5V1T-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SOT-523
- Datasheet:
-
BZX84C5V1T-7-F.pdf
- Description:
- DIODE ZENER 5.1V 150MW SOT523
- Quantity:
- Payment:

- Shipping:

Inventory:6,857
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BZX84C5V1T-7-F from Diodes Incorporated is a 5.1 V, 150 mW surface-mount Zener diode in SOT-523 package, rated for 5 mA test current with 60 Ω dynamic impedance and ±2.7 to +1.2 mV/°C temperature coefficient. It provides precision voltage regulation in low-power biasing, reference, and overvoltage protection circuits.
For engineers reviewing the BZX84C5V1T-7-F datasheet, BZX84C5V1T-7-F pinout, BZX84C5V1T-7-F application, or BZX84C5V1T-7-F equivalent, key selection criteria include zener voltage tolerance (±0.3 V), low leakage (<2 µA at 2 V), thermal resistance (833 °C/W), and RoHS-compliant green molding compound.
Technical Context
This Zener diode operates in reverse breakdown mode with a nominal 5.1 V regulation at 5 mA test current. Its planar die construction ensures stable voltage characteristics across -65 °C to +150 °C operating range and supports pulse operation per short-duration test conditions.
The device exhibits a non-linear voltage-temperature response, with minimum TC of -2.7 mV/°C and maximum of +1.2 mV/°C at 5 mA. Its 60 Ω zener impedance at 1 kHz enables predictable regulation under varying load currents up to 10 mA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 5.1 V nominal, 4.8–5.4 V min/max at 5 mA - defines regulation setpoint for reference or clamp circuits |
| Power Dissipation (PD) | 150 mW at 25 °C - limits continuous current to ~29.4 mA at 5.1 V without derating |
| Zener Impedance (ZZT) | 60 Ω at 5 mA, 1 kHz - determines output voltage deviation under load transients |
| Reverse Leakage (IR) | ≤2.0 µA at 2.0 V - ensures minimal quiescent current in high-impedance bias networks |
| Temp Coefficient (TC) | -2.7 to +1.2 mV/°C at 5 mA - quantifies drift magnitude in temperature-sensitive references |
| Package | SOT-523 - 1.6 mm × 0.8 mm footprint ideal for space-constrained PCB layouts |
| Thermal Resistance (RθJA) | 833 °C/W on FR-4 - requires thermal pad or layout mitigation above ~50 mW dissipation |
Pinout & Package
Package: SOT-523 - ultra-small plastic surface-mount case with matte tin-plated Alloy 42 leadframe, UL 94V-0 rated, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / cathode reference ground | Connected to circuit ground or lower-potential node when used as shunt regulator |
| Cathode | Reverse-biased Zener terminal / voltage reference output | Provides regulated 5.1 V relative to anode; polarity marked by band on package top view |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small SOT-523 footprint | 1.6 mm × 0.8 mm area saves >60% board space vs. SOT-23 in portable designs |
| Planar die construction | Enables tight VZ tolerance (±6%) and repeatable TC performance across production lots |
| Lead-free/RoHS-compliant | Matte tin finish over Alloy 42 leadframe meets JEDEC J-STD-020D solderability requirements |
| "Green" molding compound | Halogen-free formulation (post-UO date code) eliminates Sb2O3 flame retardants for eco-compliance |
Applications
| Low-Power Voltage Reference | Overvoltage Clamp |
|---|---|
Use Scenario: Providing stable 5.1 V bias for op-amp input stages or ADC reference dividers in battery-powered sensors. IC Role / Device Role / Timing Role: Shunt voltage reference establishing precise DC offset independent of supply variation. Use Value: Maintains <±10 mV regulation error across 1–10 mA load range due to 60 Ω ZZT and low TC drift. | Use Scenario: Protecting microcontroller I/O pins from ESD-induced voltage spikes exceeding 5.5 V. IC Role / Device Role / Timing Role: Transient voltage suppressor clamping fast-rising surges to safe levels before IC damage occurs. Use Value: Responds within nanoseconds to reverse transients while limiting peak clamped voltage to ≤5.4 V at 1 A surge. |
| Current Source Biasing | Power Supply Feedback |
Use Scenario: Setting constant collector current in discrete transistor amplifiers via emitter resistor bias network. IC Role / Device Role / Timing Role: Stable voltage node enabling predictable IC calculation using Ohm's Law across emitter resistor. Use Value: Delivers <0.5% current variation over -40 °C to +85 °C ambient due to compensated TC design. | Use Scenario: Sampling output voltage in adjustable DC-DC converter feedback loop to maintain 5.0 V rail accuracy. IC Role / Device Role / Timing Role: Precision voltage divider tap point referenced to regulated 5.1 V instead of raw supply. Use Value: Reduces feedback error contribution to <±0.3% of setpoint, improving overall output regulation to ±1%. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5221BS-7-F | Same 5.1 V nominal, but 200 mW PD, 30 Ω ZZT, SOT-323 package | Higher power handling and lower impedance suit higher-current references | Select when >15 mA regulation current or tighter impedance control is required |
| 1SMA5913BT3G | 5.1 V nominal, 1.5 W PD, DO-214AC package, 10 Ω ZZT | Designed for surge-rated clamping, not precision low-power reference | Prefer for transient suppression where energy absorption >100 mJ is needed |
Compared with MMBZ5221BS-7-F and 1SMA5913BT3G, BZX84C5V1T-7-F offers optimal trade-off of miniature size, low-cost manufacturability, and sufficient regulation stability for sub-10 mA biasing-making it preferred for space-limited consumer electronics rather than high-power or high-precision metrology.
Availability
BZX84C5V1T-7-F is available at Aetrix Electronics and suitable for low-power voltage reference, overvoltage clamp, and current source biasing applications requiring stable component supply and consistent parametric performance across production batches.
Supply support for BZX84C5V1T-7-F 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design and manufacturing operations across Asia and the Americas.
The BZX84 series belongs to Diodes' standard Zener diode product line, engineered specifically for cost-sensitive, high-volume applications demanding reliable voltage regulation in compact surface-mount packages.
FAQ
What is the maximum continuous reverse current this Zener can handle at 5.1 V?
The BZX84C5V1T-7-F is rated for 150 mW total power dissipation. At its nominal 5.1 V zener voltage, this corresponds to a maximum continuous reverse current of approximately 29.4 mA (150 mW ÷ 5.1 V). Derating is required above 25 °C ambient per the 833 °C/W thermal resistance curve.
Does this part meet JEDEC moisture sensitivity level requirements?
Yes, the BZX84C5V1T-7-F is rated Moisture Sensitivity Level 1 per J-STD-020D, meaning it may be stored indefinitely at ≤30 °C/60% RH without baking prior to reflow. This eliminates pre-assembly moisture mitigation steps in standard SMT processes.
How does the temperature coefficient affect regulation accuracy over industrial temperature range?
With a TC ranging from -2.7 to +1.2 mV/°C, the worst-case voltage drift over -40 °C to +125 °C (165 °C span) is ±458 µV/°C × 165 °C ≈ ±75.6 mV - resulting in a total VZ range of ~5.024 V to 5.176 V, or ±1.5% full-scale error at extremes.
Can this Zener be used in place of a 5 V logic-level shifter?
No - the BZX84C5V1T-7-F is not designed for bidirectional signal translation. Its asymmetric forward (0.9 V @ 10 mA) and reverse (5.1 V) conduction characteristics make it unsuitable for level-shifting logic signals; dedicated MOSFET or IC-based level shifters are required for that function.
BZX84C5V1T-7-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOT-523
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 5.1 V
- Tolerance:
- ±5.88%
- Power - Max:
- 150 mW
- Impedance (Max) (Zzt):
- 60 Ohms
- Current - Reverse Leakage @ Vr:
- 2 µA @ 2 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -65°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-523
BZX84C5V1T-7-F FAQ
1.How can I place an order for BZX84C5V1T-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84C5V1T-7-F 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 BZX84C5V1T-7-F reliable?
The price and inventory of BZX84C5V1T-7-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84C5V1T-7-F is usually 5 days.
3.What payment methods are accepted for BZX84C5V1T-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84C5V1T-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84C5V1T-7-F?
BZX84C5V1T-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84C5V1T-7-F 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 BZX84C5V1T-7-F?
For technical support, including BZX84C5V1T-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84C5V1T-7-F requirements.
6.How does Aetrix verify that BZX84C5V1T-7-F is sourced from the original manufacturer or authorized distributors?
All BZX84C5V1T-7-F 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 BZX84C5V1T-7-F meets industry standards.
7.What is the process for return or replacement of BZX84C5V1T-7-F?
All BZX84C5V1T-7-F units undergo pre-shipment inspection (PSI). If there is an issue with BZX84C5V1T-7-F, 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 BZX84C5V1T-7-F part is unused and in its original packaging.
Return procedure for BZX84C5V1T-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84C5V1T-7-F Tags

-
MMBZ5240B-7-F
Diodes Incorporated

-
BZT52C5V6T-7
Diodes Incorporated

-
MMSZ5231B-7-F
Diodes Incorporated

-
BZT52C15-7-F
Diodes Incorporated

-
BZX84C3V3LT1G
onsemi

-
MMSZ5245BS-7-F
Diodes Incorporated

-
MMSZ4682T1G
onsemi

-
BZT52C15S-7-F
Diodes Incorporated

-
MM5Z5V1ST1G
onsemi

-
SMAJ4744A-TP
Micro Commercial Co

-
BZT52C3V6LP-7
Diodes Incorporated

-
SMAZ12-13-F
Diodes Incorporated
Tech Hub
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…

