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Diodes Incorporated BZT52C16-7-F
- Part No.:
- BZT52C16-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SOD-123
- Datasheet:
-
BZT52C16-7-F.pdf
- Description:
- DIODE ZENER 16V 500MW SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:32,655
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Product details
Overview
BZT52C16-7-F from Diodes Incorporated is a surface-mount 16 V Zener diode in SOD123 package, rated for 500 mW power dissipation at TL = +75°C and 370 mW at TA = +25°C, with ±5% zener voltage tolerance (15.3–17.1 V), 40 Ω maximum zener impedance at 5 mA test current, and 0.1 µA maximum reverse leakage at 12.8 V. It serves as a precision voltage reference or overvoltage clamp in low-power DC regulation circuits.
For engineers reviewing the BZT52C16-7-F datasheet, BZT52C16-7-F pinout, BZT52C16-7-F application, or BZT52C16-7-F equivalent, key selection criteria include its 16 V nominal breakdown voltage, SOD123 thermal resistance (RθJA = 338 °C/W), cathode-band polarity marking, AEC-Q101 qualification, and compatibility with automated tape-and-reel assembly.
Technical Context
This Zener diode operates in reverse-biased breakdown mode to maintain stable voltage across load variations and supply fluctuations. Its planar die construction ensures consistent breakdown characteristics and low dynamic impedance (ZZT ≤ 40 Ω) at IZT = 5 mA, enabling reliable regulation in space-constrained PCB designs.
The device exhibits a positive temperature coefficient of +11.2 mV/°C near 16 V, supporting predictable drift compensation in temperature-sensitive references. Its 0.010 g mass, UL 94V-0 molded plastic case, and matte tin–plated Alloy 42 leadframe meet automotive-grade reliability and RoHS/Green compliance requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (Nominal) | 16 V - Stable regulation point under 5 mA test current; actual range 15.3–17.1 V defines design margin for tolerance-critical circuits. |
| Power Dissipation (TA = +25°C) | 370 mW - Maximum continuous power on FR-4 PCB with 1-inch copper pad; derates linearly above +25°C per Fig. 1. |
| Zener Impedance (IZT = 5 mA) | 40 Ω max - Low dynamic resistance enables tight voltage regulation under varying load current conditions. |
| Reverse Leakage (VR = 12.8 V) | 0.1 µA max - Minimal parasitic current preserves battery life and signal integrity in high-impedance bias networks. |
| Thermal Resistance (Junction-to-Ambient) | 338 °C/W - Determines junction temperature rise under load; requires thermal pad layout per Diodes' SOD123 recommended footprint. |
| Operating Temperature Range | −65 °C to +150 °C - Supports industrial and automotive under-hood applications without derating. |
Pinout & Package
Package: SOD123 - Surface-mount plastic case (UL 94V-0), 2-terminal, cathode band marked on top surface. Dimensions: L = 0.25–0.40 mm, D = 1.40–1.70 mm, E = 2.55–2.85 mm, He = 3.55–3.85 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference node | Connected to lower-potential side in reverse-bias configuration; forms regulated output node when paired with series resistor. |
| Cathode | Zener breakdown terminal / Voltage reference output | Marked by band; delivers stable 16 V relative to anode when reverse current ≥ 5 mA flows; polarity must be observed in PCB layout. |
Key Features
| Feature | Design Value |
|---|---|
| Planar die construction | Ensures repeatable Zener voltage distribution and low parameter spread across production lots. |
| AEC-Q101 qualification | Validated for automotive electronics use including engine control modules and body electronics requiring high reliability. |
| Lead-free & halogen-free "Green" packaging | Complies with RoHS 2 (2011/65/EU) and contains <900 ppm Br, <900 ppm Cl, <1000 ppm Sb - suitable for eco-conscious manufacturing. |
| Moisture sensitivity Level 1 | Eliminates bake requirement prior to reflow; compatible with standard SMT assembly without special handling. |
Applications
| Power Supply Voltage Reference | Overvoltage Protection Clamp |
|---|---|
Use Scenario: Providing stable 16 V reference for ADC biasing or op-amp feedback in industrial sensor signal conditioning circuits. IC Role / Device Role / Timing Role: Zener diode operating in reverse breakdown to fix reference node voltage independent of supply ripple. Use Value: Enables ±1% measurement accuracy by holding reference within 15.3–17.1 V across temperature and load, reducing need for trimming. |
Use Scenario: Clamping transient surges on 12 V automotive CAN bus lines during load dump events. IC Role / Device Role / Timing Role: Shunting excess energy to ground when line voltage exceeds 17.1 V, protecting downstream transceivers. Use Value: Limits peak voltage to safe levels using only 0.1 µA leakage at 12.8 V - no standby power penalty. |
| Low-Power Battery Monitor | Microcontroller Reset Circuit |
Use Scenario: Detecting end-of-life voltage drop in lithium-thionyl chloride primary cells powering remote IoT sensors. IC Role / Device Role / Timing Role: Acting as threshold detector via comparator input biased through high-value resistor network. Use Value: Delivers predictable 16 V trigger point with <0.1 µA leakage - extends 10-year battery life by minimizing quiescent drain. |
Use Scenario: Generating clean reset pulse for ARM Cortex-M0 microcontrollers during cold start or brownout recovery. IC Role / Device Role / Timing Role: Holding reset line low until supply stabilizes above 15.3 V, then releasing on decay. Use Value: Guarantees deterministic boot sequence with 40 Ω dynamic impedance ensuring fast release timing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5245B-7-F | Same 16 V nominal, but SOT-23 package (RθJA = 300 °C/W), 200 mW PD at TA = +25°C, higher ZZT (50 Ω). | Higher thermal performance in dense layouts; lower power rating limits use in sustained-clamp scenarios. | Select for space-constrained boards where SOT-23 footprint is preferred and peak power < 200 mW. |
| 1N4744A | Through-hole DO-41 package, 15 V nominal (±5%), 1 W PD, 16 Ω ZZT @ 17 mA - higher power, larger size. | Used in prototyping or legacy through-hole designs; unsuitable for automated SMT lines. | Select only for hand-soldered prototypes or repair where SOD123 footprint is unavailable. |
Compared with MMBZ5245B-7-F and 1N4744A, BZT52C16-7-F offers optimal balance of SMT compatibility, AEC-Q101 qualification, and 370 mW power handling in minimal SOD123 area - ideal for volume automotive and industrial PCBs.
Availability
BZT52C16-7-F is available at Aetrix Electronics and suitable for automotive body control modules, industrial sensor interfaces, and battery-powered IoT edge nodes requiring stable component supply and long-term lifecycle support.
Supply support for BZT52C16-7-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.
BZT52C16-7-F belongs to the BZT52C series of general-purpose Zener diodes designed for medium-current voltage regulation and protection in cost-sensitive, high-volume applications including automotive, computing, and consumer electronics.
FAQ
What is the maximum reverse voltage before breakdown for BZT52C16-7-F?
The nominal Zener voltage is 16 V with a guaranteed range of 15.3 V to 17.1 V at 5 mA test current. Breakdown begins gradually below this range; full regulation occurs only above 15.3 V. The device is not rated for continuous operation below 12.8 V, where reverse leakage remains ≤0.1 µA.
Can BZT52C16-7-F replace a 15 V Zener in an existing design?
No - its 16 V nominal rating and 15.3–17.1 V tolerance range exceed typical 15 V Zener specifications (e.g., BZT52C15: 13.8–15.6 V). Substituting it risks overvoltage stress on downstream components; verify circuit margin against 17.1 V worst-case clamping level.
Is BZT52C16-7-F suitable for surge protection in USB-C power delivery?
No - its 370 mW power rating and 40 Ω impedance are insufficient for USB-C PD transient suppression, which requires TVS diodes rated for >1 kW peak pulse power. Use dedicated unidirectional TVS arrays like D24M5-7-F instead.
Does the "-7-F" suffix indicate tape-and-reel packaging and RoHS compliance?
Yes - "-7-F" denotes 3,000-unit tape-and-reel packaging with fully RoHS-compliant, halogen-free "Green" construction. The "F" confirms lead-free plating and compliance with EU Directive 2011/65/EU; no additional certification documentation is required for standard commercial use.
BZT52C16-7-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOD-123
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 16 V
- Tolerance:
- ±6%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 40 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 11.2 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:
- SOD-123
BZT52C16-7-F FAQ
1.How can I place an order for BZT52C16-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52C16-7-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 BZT52C16-7-F reliable?
The price and inventory of BZT52C16-7-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52C16-7-F is usually 5 days.
3.What payment methods are accepted for BZT52C16-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52C16-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52C16-7-F?
BZT52C16-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52C16-7-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 BZT52C16-7-F?
For technical support, including BZT52C16-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52C16-7-F requirements.
6.How does Aetrix verify that BZT52C16-7-F is sourced from the original manufacturer or authorized distributors?
All BZT52C16-7-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 BZT52C16-7-F meets industry standards.
7.What is the process for return or replacement of BZT52C16-7-F?
All BZT52C16-7-F units undergo pre-shipment inspection (PSI). If there is an issue with BZT52C16-7-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 BZT52C16-7-F part is unused and in its original packaging.
Return procedure for BZT52C16-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZT52C16-7-F Tags
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