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Microchip Technology 1PMT5929E3/TR7
- Part No.:
- 1PMT5929E3/TR7
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-216AA
- Datasheet:
-
1PMT5929E3/TR7.pdf
- Description:
- DIODE ZENER 15V 3W DO216AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,480
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Product details
Overview
1PMT5929E3/TR7 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 16 kV HBM ESD rating-used for precision voltage regulation and overvoltage protection in compact DC-DC converter feedback loops.
For engineers reviewing the 1PMT5929E3/TR7 datasheet, 1PMT5929E3/TR7 pinout, 1PMT5929E3/TR7 application, or 1PMT5929E3/TR7 equivalent, key selection criteria include zener voltage tolerance, thermal resistance (30°C/W junction-to-TAB), reverse leakage (<1 µA at 11.4 V), knee current (0.25 mA), and compatibility with EIA-481 tape-and-reel automated assembly.
Technical Context
This Zener diode operates as a two-terminal voltage reference device with cathode designated by TAB 1, requiring no external biasing. Its full metallic bottom and integral heat sink locking tab enable direct thermal coupling to PCB copper, supporting stable regulation under transient load conditions up to 165 mA maximum zener current.
The device exhibits low reverse leakage (≤1 µA at VR = 11.4 V), tight dynamic impedance control (9.0 Ω at IZT = 25 mA), and specified performance across -55°C to +150°C junction temperature range-making it suitable for industrial power supply monitoring where ambient thermal cycling occurs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage | 15 V ±5% at 25 mA - defines nominal regulation point with predictable deviation in feedback networks |
| Power Dissipation | 3.0 W at TAB 1 = 60°C - sets maximum continuous power handling with PCB heatsinking |
| Dynamic Impedance | 9.0 Ω at IZT = 25 mA - determines output voltage stability under varying load current |
| Thermal Resistance | 30°C/W junction-to-TAB - quantifies temperature rise per watt, critical for thermal design margin |
| ESD Rating | >16 kV HBM - ensures robustness during automated handling and board assembly |
| Reverse Leakage | ≤1 µA at VR = 11.4 V - guarantees minimal quiescent current in high-impedance sensing paths |
| Knee Current | 0.25 mA - minimum current required to enter regulated region, affecting light-load accuracy |
Pinout & Package
Package: Powermite® surface-mount molded package with full metallic bottom and integral heat sink locking tab; cathode identified by TAB 1; mounting position unrestricted; weight ≈ 0.016 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TAB 1 | Cathode | Primary heat path and electrical cathode connection; must be soldered to thermal pad for rated 3.0 W operation |
| Lead 2 | Anode | Standard anode terminal; electrically isolated from TAB 1; used for series connection in regulation circuits |
Key Features
| Feature | Design Value |
|---|---|
| Surface-mount Powermite® package | Enables automated placement and reflow while delivering 3.0 W power handling in footprint smaller than DO-216 |
| Full metallic bottom | Eliminates solder flux entrapment risk during reflow, improving long-term solder joint reliability |
| Integral heat sink locking tab | Provides mechanical anchoring and direct thermal conduction path to PCB copper, reducing thermal resistance |
| ESD robustness | >16 kV HBM rating supports handling in standard SMT lines without special ESD controls |
| Tight voltage tolerance option | ±1% and ±2% versions available (suffix D/C) for applications demanding higher regulation accuracy |
Applications
| Industrial Power Supply Monitoring | Automotive Body Control Module (BCM) Voltage Clamp |
|---|---|
Use Scenario: Monitoring 12 V rail in programmable logic controller (PLC) power stage to detect overvoltage faults before damage occurs. IC Role / Device Role / Timing Role: Zener clamping element referenced to ground, sinking excess current when rail exceeds 15 V threshold. Use Value: Leverages 3.0 W rating and 30°C/W thermal resistance to absorb transient surges without thermal runaway. | Use Scenario: Protecting microcontroller I/O pins from load-dump transients in 12 V automotive BCMs. IC Role / Device Role / Timing Role: Standby overvoltage clamp placed between I/O line and chassis ground. Use Value: 16 kV HBM ESD rating and low reverse leakage (<1 µA) prevent false triggering and ensure signal integrity. |
| Compact DC-DC Converter Feedback | Medical Sensor Signal Conditioning |
Use Scenario: Providing reference voltage for optocoupler-based feedback in isolated 5 V/3 A flyback converter. IC Role / Device Role / Timing Role: Precision shunt regulator setting output voltage via resistor divider network. Use Value: 9.0 Ω dynamic impedance ensures <±0.1 V output variation across 10–100% load range. | Use Scenario: Biasing photodiode amplifier input stage in portable pulse oximeter analog front-end. IC Role / Device Role / Timing Role: Low-noise voltage reference stabilizing op-amp common-mode voltage. Use Value: ≤1 µA reverse leakage avoids injection error into high-impedance sensor node. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4744A | DO-41 through-hole package; 14 V nominal; 1 W rating; 20 Ω Zzt at 25 mA | Requires manual or wave soldering; unsuitable for high-power density layouts | Select only if legacy through-hole assembly or lower power (≤1 W) is acceptable |
| BZX84-C15 | SOT-23 package; 15 V nominal; 300 mW rating; 30 Ω Zzt at 5 mA | Limited thermal mass; not rated for sustained 3.0 W operation | Choose only for space-constrained low-power signal-level clamping, not power regulation |
Compared with 1N4744A and BZX84-C15, the 1PMT5929E3/TR7 delivers 3× higher power handling in SMT form factor, lower dynamic impedance, and superior thermal performance-justifying its use where board area, power density, and thermal stability are design-critical.
Availability
1PMT5929E3/TR7 is available at Aetrix Electronics and suitable for industrial power supplies, automotive body electronics, medical sensor modules, and compact DC-DC converters requiring stable component supply with consistent parametric performance across production lots.
Supply support for 1PMT5929E3/TR7 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 RF solutions for aerospace, defense, industrial, and communications markets.
The Powermite® Zener diode product line was engineered for high-power-density surface-mount voltage regulation in thermally demanding environments-prioritizing thermal efficiency, assembly robustness, and parametric consistency over cost-optimized alternatives.
FAQ
What is the zener voltage tolerance for 1PMT5929E3/TR7?
The 1PMT5929E3/TR7 has a standard zener voltage tolerance of ±5% at 15 V nominal, measured at 25 mA test current and TAB 1 temperature of 30°C. Tighter tolerances of ±2% (suffix C) and ±1% (suffix D) are available upon request but are not applicable to the base 1PMT5929E3/TR7 marking.
How is thermal performance defined for 1PMT5929E3/TR7?
1PMT5929E3/TR7 specifies a thermal resistance of 30°C/W from junction to TAB 1. This means each watt dissipated raises the junction temperature 30°C above the TAB temperature. Full 3.0 W rating requires TAB 1 maintained at ≤60°C-achievable via adequate PCB copper area and thermal vias.
Can 1PMT5929E3/TR7 be used in place of 1N4744A?
No-1PMT5929E3/TR7 is not a drop-in replacement for 1N4744A due to differing packages (Powermite® vs. DO-41), thermal characteristics, and power ratings. While both regulate near 15 V, the 1PMT5929E3/TR7 requires surface-mount layout and delivers 3× the power capability, making direct substitution unsafe without thermal and mechanical redesign.
What does the 'E3/TR7' suffix indicate in 1PMT5929E3/TR7?
The 'E3' denotes tape-and-reel packaging per EIA-481 standard, and 'TR7' specifies a 7-inch reel containing 3,000 units. This packaging format ensures compatibility with high-speed pick-and-place equipment and supports automated SMT assembly without manual handling.
Is 1PMT5929E3/TR7 suitable for automotive applications?
Yes-1PMT5929E3/TR7 meets automotive-grade operating temperature requirements (-55°C to +150°C junction), features >16 kV HBM ESD robustness, and is widely deployed in automotive body control modules for voltage clamping. However, AEC-Q200 qualification status must be verified separately per batch documentation.
1PMT5929E3/TR7 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:
- ±20%
- 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
1PMT5929E3/TR7 FAQ
1.How can I place an order for 1PMT5929E3/TR7 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1PMT5929E3/TR7 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 1PMT5929E3/TR7 reliable?
The price and inventory of 1PMT5929E3/TR7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PMT5929E3/TR7 is usually 5 days.
3.What payment methods are accepted for 1PMT5929E3/TR7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1PMT5929E3/TR7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1PMT5929E3/TR7?
1PMT5929E3/TR7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1PMT5929E3/TR7 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 1PMT5929E3/TR7?
For technical support, including 1PMT5929E3/TR7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PMT5929E3/TR7 requirements.
6.How does Aetrix verify that 1PMT5929E3/TR7 is sourced from the original manufacturer or authorized distributors?
All 1PMT5929E3/TR7 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 1PMT5929E3/TR7 meets industry standards.
7.What is the process for return or replacement of 1PMT5929E3/TR7?
All 1PMT5929E3/TR7 units undergo pre-shipment inspection (PSI). If there is an issue with 1PMT5929E3/TR7, 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 1PMT5929E3/TR7 part is unused and in its original packaging.
Return procedure for 1PMT5929E3/TR7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1PMT5929E3/TR7 Tags
-
MMBZ5240B-7-F
Diodes Incorporated
-
BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
Diodes Incorporated
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BZT52C15-7-F
Diodes Incorporated
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BZX84C3V3LT1G
onsemi
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MMSZ5245BS-7-F
Diodes Incorporated
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MMSZ4682T1G
onsemi
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BZT52C15S-7-F
Diodes Incorporated
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MM5Z5V1ST1G
onsemi
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SMAJ4744A-TP
Micro Commercial Co
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BZT52C3V6LP-7
Diodes Incorporated
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SMAZ12-13-F
Diodes Incorporated
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