My Inquiry
My Account
Diodes Incorporated DFLZ13-7
- Part No.:
- DFLZ13-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- POWERDI®123
- Datasheet:
-
DFLZ13-7.pdf
- Description:
- DIODE ZENER 13V 1W POWERDI 123
- Quantity:
- Payment:
- Shipping:
Inventory:1,475
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
DFLZ13-7 from Diodes Incorporated is a 13V, 1W surface-mount power Zener diode in PowerDI123 package, rated for ±5% zener voltage tolerance (12.4–14.1V), 10Ω maximum zener impedance at 50mA test current, and -55°C to +150°C operating temperature range. It provides precision voltage regulation in low-power supply rails, overvoltage protection circuits, and reference voltage generation for industrial sensor interfaces.
For engineers reviewing the DFLZ13-7 datasheet, DFLZ13-7 pinout, DFLZ13-7 application, or DFLZ13-7 equivalent, this part serves as a RoHS-compliant, automotive-qualified (Q-grade variant available), green halogen-free Zener with JEDEC-reliability validation, thermal resistance of 9°C/W junction-to-solder point, and stable temperature coefficient (±0.05%/°C).
Technical Context
This Zener diode operates in reverse breakdown mode to maintain a stable 13V reference under controlled current conditions. Its 1W power dissipation rating is validated on FR-4 PCB with 1"x1" copper pad, and it exhibits 1.2V forward voltage at 200mA - enabling bidirectional clamping capability when paired with series components.
The device features a cathode-band polarity marking, matte tin-annealed terminals solderable per MIL-STD-202, and moisture sensitivity level 1 per J-STD-020. Its total capacitance is <10pF at 1MHz and 1V reverse bias, supporting high-frequency noise suppression without signal distortion.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 13V nominal, 12.4–14.1V range at IZT = 50mA - ensures ±5% regulation accuracy across production lots |
| Power Dissipation (PD) | 1.0W on FR-4 PCB - supports continuous operation in compact industrial power supplies without forced cooling |
| Zener Impedance (ZZT) | ≤10Ω max at 50mA - minimizes output voltage variation under dynamic load changes |
| Reverse Current (IR) | ≤2µA at VR = 10V - enables low-leakage voltage reference design in battery-powered systems |
| Thermal Resistance (RθJS) | 9°C/W junction-to-solder point - allows accurate thermal modeling for board-level reliability prediction |
| Temperature Coefficient | ±0.05%/°C - maintains stable regulation across -55°C to +150°C ambient, critical for automotive under-hood use |
| Package | PowerDI123 - 3.7mm × 1.78mm footprint with exposed cathode tab for enhanced thermal conduction |
Pinout & Package
Package: PowerDI123 - molded green plastic housing (UL 94V-0), 0.01g weight, cathode band marking on top surface. Terminals are matte tin-annealed over copper leadframe, solderable per MIL-STD-202 Method 208.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Reverse breakdown reference ground | Connected to system ground or lower-potential node; forms regulated output reference when cathode is biased above anode |
| Cathode | Reverse breakdown input / Zener regulation node | Marked with band; connected to unregulated input rail; conducts when reverse voltage exceeds 13V, clamping downstream circuitry |
Key Features
| Feature | Design Value |
|---|---|
| 1W power rating on standard FR-4 | Enables robust voltage regulation without heatsinking in space-constrained industrial PCBs |
| JEDEC-qualified high-reliability construction | Validated per AEC-Q stress tests - suitable for automotive subsystems requiring long-term stability |
| Halogen- and antimony-free "Green" compound | Meets EU RoHS 3 (2015/863/EU) with Br+Cl <1500ppm and Sb <1000ppm - compliant for eco-sensitive markets |
| Cathode-band polarity identification | Eliminates assembly errors during automated placement; visible under optical inspection and AOI systems |
Applications
| Industrial Sensor Signal Conditioning | Automotive Body Control Module (BCM) Voltage Clamp |
|---|---|
Use Scenario: Stabilizing excitation voltage for resistive bridge sensors in PLC analog input modules. IC Role / Device Role / Timing Role: Zener diode acting as shunt voltage reference and overvoltage protector for 12V rail. Use Value: Maintains ±0.65V regulation window (12.4–14.1V) across temperature, ensuring ADC reference stability within 0.1% FS error budget. |
Use Scenario: Protecting microcontroller I/O pins from load-dump transients in 12V vehicle electrical systems. IC Role / Device Role / Timing Role: Fast-response shunt clamp limiting transient voltage to ≤14.1V during ISO 7637-2 pulse 5a events. Use Value: Withstands 1W peak dissipation for 100ms pulses and recovers within 1µs - prevents latch-up in 3.3V logic interfaces. |
| Programmable Logic Controller (PLC) Power Rail Supervisor | IoT Edge Node Battery Backup Regulator |
Use Scenario: Monitoring 24V DC fieldbus supply integrity in industrial automation cabinets. IC Role / Device Role / Timing Role: Zener-based comparator reference for undervoltage lockout (UVLO) circuitry. Use Value: Low 2µA leakage at 10V ensures minimal quiescent current draw - extends supervisor uptime during brownout conditions. |
Use Scenario: Providing stable 13V reference for lithium-thionyl chloride (Li-SOCl₂) battery monitoring ICs in remote telemetry units. IC Role / Device Role / Timing Role: Precision voltage reference for battery voltage scaling and state-of-charge estimation. Use Value: ±0.05%/°C tempco enables accurate SoC calculation across -40°C to +85°C operating range without calibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C13-7 | 0.3W rating, SOT-23 package, 13V ±5%, ZZT ≤30Ω at 5mA | Limited to low-power signal-level clamping; unsuitable for 1W continuous dissipation | Select when board space is critical and power demand is <300mW |
| 1N4742A-TR | 1W DO-41 through-hole, 12V ±5%, ZZT ≤20Ω at 21mA, RθJA = 50°C/W | Higher thermal resistance limits PCB density; incompatible with automated SMT assembly | Select only for legacy through-hole designs or prototyping where reflow compatibility is not required |
Compared with BZX84-C13-7 and 1N4742A-TR, DFLZ13-7 delivers superior thermal performance (RθJS = 9°C/W), SMT scalability, and automotive-grade reliability - making it optimal for high-volume, thermally constrained, and mission-critical applications.
Availability
DFLZ13-7 is available at Aetrix Electronics and suitable for industrial sensor conditioning, automotive body control modules, PLC power supervision, and IoT edge node battery regulation requiring stable component supply and full traceability.
Supply support for DFLZ13-7 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 DFLZ series belongs to Diodes' Power Discrete portfolio, engineered specifically for high-reliability voltage regulation and transient suppression in automotive, industrial, and consumer power systems - emphasizing JEDEC qualification, green materials, and SMT manufacturability.
FAQ
What is the maximum continuous reverse current the DFLZ13-7 can handle at 13V?
The DFLZ13-7 is not rated for continuous conduction at its zener voltage; it is designed for regulated reverse-bias operation at IZT = 50mA. At 13V, sustained current must be limited by external series resistance to ensure power dissipation stays within 1.0W. Exceeding this causes thermal runaway due to positive tempco above ~6V.
Does DFLZ13-7 support automotive applications?
Yes - the automotive-qualified variant DFLZ13Q-7 is explicitly qualified to AEC-Q200 standards. While DFLZ13-7 itself is built on the same die and process, its qualification documentation applies only to the Q-suffix version; designers targeting automotive production must specify DFLZ13Q-7 for compliance.
How does the PowerDI123 package improve thermal performance over SOD-123?
PowerDI123 features an exposed cathode tab that directly contacts the PCB copper pour, achieving RθJS = 9°C/W - nearly 4× better than SOD-123's typical 35°C/W. This allows 1W dissipation without thermal derating on standard FR-4, whereas SOD-123 requires significant copper area or airflow to sustain equivalent power.
Can DFLZ13-7 be used in series or parallel configurations?
Series connection is acceptable for higher-voltage references if matched tempcos are selected; parallel use is strongly discouraged due to mismatched zener impedances causing current hogging and thermal instability. For >1W requirements, use a single higher-rated device or active regulation instead of paralleling.
DFLZ13-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- POWERDI®123
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 13 V
- Tolerance:
- ±6%
- Power - Max:
- 1 W
- Impedance (Max) (Zzt):
- 10 Ohms
- Current - Reverse Leakage @ Vr:
- 2 µA @ 10 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.2 V @ 200 mA
- Operating Temperature:
- -55°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PowerDI™ 123
DFLZ13-7 FAQ
1.How can I place an order for DFLZ13-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DFLZ13-7 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 DFLZ13-7 reliable?
The price and inventory of DFLZ13-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DFLZ13-7 is usually 5 days.
3.What payment methods are accepted for DFLZ13-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DFLZ13-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DFLZ13-7?
DFLZ13-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DFLZ13-7 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 DFLZ13-7?
For technical support, including DFLZ13-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DFLZ13-7 requirements.
6.How does Aetrix verify that DFLZ13-7 is sourced from the original manufacturer or authorized distributors?
All DFLZ13-7 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 DFLZ13-7 meets industry standards.
7.What is the process for return or replacement of DFLZ13-7?
All DFLZ13-7 units undergo pre-shipment inspection (PSI). If there is an issue with DFLZ13-7, 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 DFLZ13-7 part is unused and in its original packaging.
Return procedure for DFLZ13-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DFLZ13-7 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…
