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Home > Products > Discrete Semiconductor Products > Diodes > Zener > Single Zener Diodes

Microchip Technology 1PMT5929B/TR13

Name: 1PMT5929B/TR13
Brand: Microchip Technology
SKU: 1PMT5929B/TR13
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 1PMT5929B/TR13

Manufacturer:: Microchip Technology

Category:: Single Zener Diodes

Package:: DO-216AA

Datasheet:: 1PMT5929B/TR13.pdf

Description:: DIODE ZENER 15V 3W DO216AA

Quantity:: RFQ Add To RFQ list

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Inventory:2,806

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Product details

Overview

1PMT5929B/TR13 from Microsemi is a 15 V, ±5% tolerance surface-mount Zener diode in the Powermite® package, rated for 3.0 W DC power dissipation at TAB 1 = 60°C, with 9.0 Ω dynamic impedance at 25 mA test current and 600 µA max reverse leakage at 11.4 V. It serves as a precision voltage reference or overvoltage clamp in DC power rails of industrial control modules.

For engineers reviewing the 1PMT5929B/TR13 datasheet, 1PMT5929B/TR13 pinout, 1PMT5929B/TR13 application, or 1PMT5929B/TR13 equivalent, key selection criteria include zener voltage tolerance, thermal resistance (30°C/W junction-to-TAB), ESD rating (>16 kV HBM), low knee impedance, and compatibility with EIA-481 tape-and-reel automated assembly.

Technical Context

This Zener diode operates in reverse breakdown mode to maintain stable voltage regulation across varying load currents. Its Powermite® package integrates a full metallic bottom and locking tab that functions as both mechanical anchor and thermal path to PCB copper, enabling efficient heat transfer from junction to TAB 1.

The device exhibits tight voltage regulation with 9.0 Ω dynamic impedance at I_ZT = 25 mA and maintains low reverse leakage (≤600 µA at V_R = 11.4 V), supporting reliable clamping in transient-prone environments such as motor drive feedback loops and sensor supply conditioning.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage V_Z	15 V ±5% at I_ZT = 25 mA - defines nominal regulation point for voltage reference or clamp design
Power Dissipation	3.0 W at TAB 1 = 60°C - sets maximum continuous thermal load under defined mounting condition
Dynamic Impedance Z_ZT	9.0 Ω at I_ZT = 25 mA - determines output voltage variation under load current changes
Reverse Leakage I_R	≤600 µA at V_R = 11.4 V - ensures minimal quiescent current in standby or high-impedance bias networks
Thermal Resistance	30°C/W junction-to-TAB 1 - quantifies temperature rise per watt, critical for thermal layout on FR-4 PCBs
ESD Rating	>16 kV per Human Body Model - supports robustness in handling and board-level ESD events
Knee Current I_ZK	0.25 mA - minimum current needed to enter usable regulation region near V_Z

Pinout & Package

Package: Powermite® surface-mount molded package with full metallic bottom and integral locking tab; cathode designated by TAB 1; weight ≈ 0.016 g; compatible with EIA-481 tape-and-reel (7″/3,000 pcs, 13″/12,000 pcs).

Pin/Terminal	Circuit Role	Design Meaning
TAB 1	Cathode	Primary thermal and electrical connection point; must be soldered to copper pour for thermal management and circuit return
Lead 2	Anode	Standard anode terminal; connects to lower-potential node in reverse-biased Zener configuration

Key Features

Feature	Design Value
Integral heat sink locking tab	Mechanically anchors device during reflow while conducting heat directly from junction to PCB copper
Full metallic bottom	Eliminates solder flux entrapment risk and improves thermal conduction vs. plastic-bottom SMD packages
ESD robustness	>16 kV HBM rating enables safe handling and operation in unshielded industrial environments
Automated insertion compatibility	Designed for pick-and-place and reflow processes per EIA-481 standard tape-and-reel packaging

Applications

Industrial Power Supply Regulation	Motor Drive Feedback Clamping
Use Scenario: Stabilizing +15 V reference rail for op-amp biasing and ADC reference in PLC analog I/O modules. IC Role / Device Role / Timing Role: Zener diode operating in reverse breakdown to clamp and regulate voltage against line transients and load variations. Use Value: Maintains <±2% output stability over -40°C to +85°C ambient due to low tempco and 30°C/W thermal resistance.	Use Scenario: Protecting microcontroller GPIO inputs from inductive kickback during brushed DC motor commutation. IC Role / Device Role / Timing Role: Transient voltage suppressor clamping feedback signal lines to 15 V before reaching MCU input protection diodes. Use Value: Limits peak voltage to 15 V with ≤9.0 Ω dynamic impedance, reducing overshoot duration and preventing latch-up.
Sensor Signal Conditioning	Programmable Logic Controller (PLC) Input Protection
Use Scenario: Biasing bridge-based pressure sensors with stable 15 V excitation in harsh factory-floor environments. IC Role / Device Role / Timing Role: Precision voltage reference providing excitation voltage with minimal drift and ripple sensitivity. Use Value: Delivers ±5% initial tolerance and <0.1%/°C typical tempco, ensuring measurement repeatability across temperature cycles.	Use Scenario: Isolating and protecting 24 V digital input channels from field wiring surges in modular PLC backplanes. IC Role / Device Role / Timing Role: Primary overvoltage clamp on input front-end, shunting surge energy to ground before optocoupler input stage. Use Value: Absorbs 3.0 W continuously and handles repetitive transients thanks to robust Powermite® thermal design.

Industrial Power Supply Regulation

Motor Drive Feedback Clamping

Use Scenario: Stabilizing +15 V reference rail for op-amp biasing and ADC reference in PLC analog I/O modules.

IC Role / Device Role / Timing Role: Zener diode operating in reverse breakdown to clamp and regulate voltage against line transients and load variations.

Use Value: Maintains <±2% output stability over -40°C to +85°C ambient due to low tempco and 30°C/W thermal resistance.

Use Scenario: Protecting microcontroller GPIO inputs from inductive kickback during brushed DC motor commutation.

IC Role / Device Role / Timing Role: Transient voltage suppressor clamping feedback signal lines to 15 V before reaching MCU input protection diodes.

Use Value: Limits peak voltage to 15 V with ≤9.0 Ω dynamic impedance, reducing overshoot duration and preventing latch-up.

Sensor Signal Conditioning

Programmable Logic Controller (PLC) Input Protection

Use Scenario: Biasing bridge-based pressure sensors with stable 15 V excitation in harsh factory-floor environments.

IC Role / Device Role / Timing Role: Precision voltage reference providing excitation voltage with minimal drift and ripple sensitivity.

Use Value: Delivers ±5% initial tolerance and <0.1%/°C typical tempco, ensuring measurement repeatability across temperature cycles.

Use Scenario: Isolating and protecting 24 V digital input channels from field wiring surges in modular PLC backplanes.

IC Role / Device Role / Timing Role: Primary overvoltage clamp on input front-end, shunting surge energy to ground before optocoupler input stage.

Use Value: Absorbs 3.0 W continuously and handles repetitive transients thanks to robust Powermite® thermal design.

Equivalent & Alternatives

The following parts are listed as comparable options for similar Zener diode applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
ON Semiconductor 1N5929B	Same 15 V ±5%, 3.0 W rating, DO-41 through-hole package; no metallic bottom or locking tab; R_θJA ≈ 65°C/W	Requires through-hole assembly; less suitable for high-density SMT layouts or thermally constrained boards	Select when legacy through-hole compatibility or higher single-pulse surge capability is prioritized over thermal performance
Vishay 1N5349B	15 V ±5%, 5.0 W rating, DO-15 package; higher power but larger footprint; R_θJA ≈ 50°C/W; no ESD rating specified	Better suited for high-energy transient suppression but incompatible with fine-pitch SMT automation	Select when >3.0 W short-duration pulse handling is required and board space allows larger axial package

Compared with 1N5929B and 1N5349B, the 1PMT5929B/TR13 delivers superior thermal management (30°C/W vs. ≥50°C/W), automated assembly readiness, and certified ESD robustness-making it optimal for compact, high-reliability SMT power rail regulation.

Availability

1PMT5929B/TR13 is available at Aetrix Electronics and suitable for industrial power supply regulation, motor drive feedback clamping, and sensor signal conditioning requiring stable component supply, consistent parametric performance, and long-term production continuity.

Supply support for 1PMT5929B/TR13 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

Microsemi (now part of Microchip Technology) is a U.S.-based semiconductor company specializing in high-reliability analog, mixed-signal, and radiation-hardened components for aerospace, defense, and industrial markets.

The Powermite® Zener diode product line was engineered for surface-mount voltage regulation in thermally demanding, space-constrained industrial systems where traditional through-hole devices could not meet thermal or automation requirements.

FAQ

What is the zener voltage tolerance for 1PMT5929B/TR13?

The 1PMT5929B/TR13 has a nominal zener voltage of 15 V with a standard tolerance of ±5% at I_ZT = 25 mA and T_C = 30°C. Tighter tolerances (±2% and ±1%) are available with suffixes C and D respectively, but the base part number 1PMT5929B/TR13 specifies ±5%. This tolerance directly impacts regulation accuracy in precision reference applications.

How is thermal management handled in the 1PMT5929B/TR13 package?

The 1PMT5929B/TR13 uses Microsemi's Powermite® package with a full metallic bottom and integral locking tab that serves as both mechanical anchor and thermal path to the PCB. Its junction-to-TAB 1 thermal resistance is 30°C/W, meaning proper soldering of TAB 1 to a copper pour is essential to achieve the rated 3.0 W power dissipation at 60°C case temperature.

Is the 1PMT5929B/TR13 compatible with automated SMT assembly?

Yes, the 1PMT5929B/TR13 is designed for compatibility with automated insertion equipment and is supplied in EIA-481 standard tape-and-reel format (7″ reel: 3,000 pieces; 13″ reel: 12,000 pieces). Its Powermite® package geometry and locking tab ensure stable placement and reliable reflow soldering without tombstoning or misalignment.

What is the maximum reverse leakage current for 1PMT5929B/TR13?

The maximum reverse leakage current for 1PMT5929B/TR13 is 600 µA at a reverse voltage of 11.4 V and T_L = 30°C. This value is measured under standardized conditions and reflects the device's ability to minimize standby current in high-impedance bias networks or precision reference circuits where leakage-induced error must be controlled.

Does the 1PMT5929B/TR13 have ESD protection, and what is its rating?

Yes, the 1PMT5929B/TR13 is rated for >16 kV per the Human Body Model (HBM) ESD test. This high ESD robustness is built into the device structure and supports reliable handling during manufacturing and operation in electrically noisy industrial environments without requiring external protection circuitry.

1PMT5929B/TR13 Specifications

Product attributes: Attribute value

Manufacturer:: Microchip Technology

Series:: -

Package/Case:: DO-216AA

Packaging:: Tape & Reel (TR)

Product Status:: Active

Voltage - Zener (Nom) (Vz):: 15 V

Tolerance:: ±5%

Power - Max:: 3 W

Impedance (Max) (Zzt):: 8 Ohms

Current - Reverse Leakage @ Vr:: 1 µA @ 11.4 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:: DO-216AA

1PMT5929B/TR13 FAQ

1.How can I place an order for 1PMT5929B/TR13 through Aetrix?

Please submit a Request for Quotation (RFQ) for 1PMT5929B/TR13 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 1PMT5929B/TR13 reliable?

The price and inventory of 1PMT5929B/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PMT5929B/TR13 is usually 5 days.

3.What payment methods are accepted for 1PMT5929B/TR13?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1PMT5929B/TR13 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 1PMT5929B/TR13?

1PMT5929B/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 1PMT5929B/TR13 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 1PMT5929B/TR13?

For technical support, including 1PMT5929B/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PMT5929B/TR13 requirements.

6.How does Aetrix verify that 1PMT5929B/TR13 is sourced from the original manufacturer or authorized distributors?

All 1PMT5929B/TR13 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 1PMT5929B/TR13 meets industry standards.

7.What is the process for return or replacement of 1PMT5929B/TR13?

All 1PMT5929B/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with 1PMT5929B/TR13, 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 1PMT5929B/TR13 part is unused and in its original packaging.

Return procedure for 1PMT5929B/TR13:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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