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Microchip Technology 1PMT5927BE3/TR7
- Part No.:
- 1PMT5927BE3/TR7
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-216AA
- Datasheet:
-
1PMT5927BE3/TR7.pdf
- Description:
- DIODE ZENER 12V 3W DO216AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,490
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Product details
Overview
1PMT5927BE3/TR7 from Microsemi is a 12 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 6.5 Ω dynamic impedance at 31.2 mA test current and thermal resistance of 30°C/W junction-to-TAB1 - used for precision voltage regulation in compact DC-DC converter feedback loops and overvoltage protection circuits.
For engineers reviewing the 1PMT5927BE3/TR7 datasheet, 1PMT5927BE3/TR7 pinout, 1PMT5927BE3/TR7 application, or 1PMT5927BE3/TR7 equivalent, key selection criteria include Zener voltage tolerance, power derating above 60°C, knee current (IZK = 0.25 mA), reverse leakage (IR ≤ 1 µA at VR = 1 V), and ESD robustness (>16 kV HBM).
Technical Context
This device operates as a two-terminal voltage reference with cathode designated by TAB 1, requiring no external biasing. Its full metallic bottom ensures reliable solder joint formation and eliminates flux entrapment during reflow assembly.
The Powermite® package integrates a locking tab that functions as an integral heat sink, enabling 3.0 W power handling while maintaining DO-216 footprint compatibility. Thermal resistance is fixed at 30°C/W from junction to TAB 1, supporting stable regulation under sustained load conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 12 V ±5% at IZT = 31.2 mA, TL = 30°C - defines nominal regulation point with tight production control |
| Power Dissipation | 3.0 W at TAB 1 = 60°C - sets maximum continuous DC power before thermal shutdown or degradation |
| Dynamic Impedance (ZZT) | 6.5 Ω at IZT = 31.2 mA - determines output voltage stability under small-signal current variation |
| Knee Current (IZK) | 0.25 mA - minimum current needed to enter regulated region; critical for low-power standby operation |
| Reverse Leakage (IR) | ≤1 µA at VR = 1 V - ensures minimal quiescent current in high-impedance sensing nodes |
| Thermal Resistance | 30°C/W junction-to-TAB1 - enables accurate PCB copper pour sizing for thermal management |
| ESD Rating | >16 kV per Human Body Model - supports robust handling in automated SMT lines without added protection |
Pinout & Package
Package: Powermite® (DO-216), molded surface-mount package with full metallic bottom and integral heat-sink locking tab; cathode identified by TAB 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TAB 1 | Cathode | Primary heat path and voltage reference node; must be connected to ground or low-impedance return for thermal and electrical stability |
| Lead 2 | Anode | Input terminal for reverse-bias connection; requires current-limiting resistor in series with supply rail |
Key Features
| Feature | Design Value |
|---|---|
| Surface-mount Powermite® package | Enables automated placement and reflow while delivering 3.0 W power handling in DO-216 footprint |
| Integral heat-sink locking tab | Reduces thermal resistance to 30°C/W and improves mechanical retention during thermal cycling |
| Full metallic bottom | Prevents solder flux entrapment and ensures void-free solder joints in high-volume manufacturing |
| ESD rating >16 kV HBM | Eliminates need for external ESD protection in board-level handling and system integration |
Applications
| DC-DC Converter Feedback | Overvoltage Clamp |
|---|---|
Use Scenario: Regulating output voltage in isolated flyback or buck-derived converters where space-constrained layout prevents use of larger through-hole Zeners. IC Role / Device Role / Timing Role: Precision voltage reference in optocoupler feedback network, setting error amplifier threshold. Use Value: 12 V ±5% regulation with 6.5 Ω dynamic impedance ensures <±1% output deviation across line/load transients. | Use Scenario: Protecting microcontroller I/O pins or analog sensor inputs from transient overvoltage events on shared supply rails. IC Role / Device Role / Timing Role: Shunt clamping element that conducts only above 12 V, diverting excess current to ground. Use Value: 0.25 mA knee current allows effective clamping even during low-power sleep modes without false triggering. |
| Low-Power Reference Source | Industrial Sensor Excitation |
Use Scenario: Providing stable bias voltage for op-amp comparators or ADC reference dividers in battery-powered instrumentation. IC Role / Device Role / Timing Role: Two-terminal passive reference with minimal quiescent draw (≤1 µA leakage at 1 V). Use Value: Enables multi-year operation from coin-cell batteries due to sub-microamp reverse leakage below regulation threshold. | Use Scenario: Supplying excitation voltage to resistive temperature detectors (RTDs) or strain gauges in factory-floor measurement modules. IC Role / Device Role / Timing Role: Stable 12 V source tolerant of ambient temperatures up to +150°C junction. Use Value: Junction-to-TAB1 thermal resistance of 30°C/W allows direct mounting to heatsinked PCB areas for long-term drift stability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4742A | Same 12 V nominal rating but TO-204AA (DO-41) through-hole package; 1 W rating; higher ZZT (9 Ω) | Requires manual or wave-solder assembly; unsuitable for high-density SMT layouts | Select when legacy through-hole design or lower-cost procurement outweighs size/power advantages |
| BZX84-C12 | SOT-23 package; 300 mW rating; looser tolerance (±6%); higher ZZT (30 Ω) | Limited to signal-level regulation; cannot sustain 3.0 W continuous dissipation | Select only for low-power biasing where thermal margin and precision are secondary |
Compared with 1N4742A and BZX84-C12, the 1PMT5927BE3/TR7 delivers 3× higher power density in SMT form, tighter regulation stability via lower dynamic impedance, and integrated thermal management - making it optimal for space-constrained industrial power supplies requiring long-term reliability.
Availability
1PMT5927BE3/TR7 is available at Aetrix Electronics and suitable for industrial power supplies, automotive body electronics, and medical sensor modules requiring stable component supply with full traceability and extended lifecycle support.
Supply support for 1PMT5927BE3/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 and mixed-signal components for aerospace, defense, and industrial markets.
The Powermite® Zener family, including 1PMT5927BE3/TR7, was engineered for high-power-density voltage regulation in harsh-environment applications where thermal stability, ESD resilience, and automated manufacturability are critical.
FAQ
What is the Zener voltage tolerance for 1PMT5927BE3/TR7?
The 1PMT5927BE3/TR7 has a standard Zener voltage tolerance of ±5% at 12 V nominal, measured at IZT = 31.2 mA and TAB temperature of 30°C. Tighter tolerances (±2%, ±1%) are available with suffixes C and D, but the base part number 1PMT5927BE3/TR7 specifies ±5%.
How is thermal performance defined for 1PMT5927BE3/TR7?
Thermal performance of the 1PMT5927BE3/TR7 is specified as 30°C/W junction-to-TAB1. This means each watt of dissipated power raises the junction temperature 30°C above the TAB 1 temperature. Derating begins above 60°C TAB temperature, with full 3.0 W rating only valid at TAB 1 ≤ 60°C.
Can 1PMT5927BE3/TR7 be used in place of a through-hole Zener like 1N4742A?
No - the 1PMT5927BE3/TR7 is not a drop-in replacement for 1N4742A due to different package (Powermite® vs. DO-41), thermal path (TAB-based vs. lead-based), and power rating (3.0 W vs. 1.0 W). While both regulate at ~12 V, PCB layout, thermal design, and current-limiting resistor values must be re-evaluated for 1PMT5927BE3/TR7.
What does the "E3/TR7" suffix indicate in 1PMT5927BE3/TR7?
The "E3/TR7" suffix denotes tape-and-reel packaging per EIA-481 standard, with 3,000 units per 7-inch reel. "E3" refers to the packaging configuration, and "TR7" confirms the 7-inch reel format - critical for SMT pick-and-place machine compatibility and logistics planning.
Is 1PMT5927BE3/TR7 suitable for automotive applications?
Yes - the 1PMT5927BE3/TR7 operates across -55°C to +150°C junction temperature range and meets stringent ESD requirements (>16 kV HBM), making it suitable for under-hood and body-control module applications. However, AEC-Q200 qualification status must be verified separately, as the base datasheet does not explicitly state AEC compliance.
1PMT5927BE3/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):
- 12 V
- Tolerance:
- ±5%
- Power - Max:
- 3 W
- Impedance (Max) (Zzt):
- 6.5 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 9.1 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
1PMT5927BE3/TR7 FAQ
1.How can I place an order for 1PMT5927BE3/TR7 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1PMT5927BE3/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 1PMT5927BE3/TR7 reliable?
The price and inventory of 1PMT5927BE3/TR7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PMT5927BE3/TR7 is usually 5 days.
3.What payment methods are accepted for 1PMT5927BE3/TR7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1PMT5927BE3/TR7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1PMT5927BE3/TR7?
1PMT5927BE3/TR7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1PMT5927BE3/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 1PMT5927BE3/TR7?
For technical support, including 1PMT5927BE3/TR7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PMT5927BE3/TR7 requirements.
6.How does Aetrix verify that 1PMT5927BE3/TR7 is sourced from the original manufacturer or authorized distributors?
All 1PMT5927BE3/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 1PMT5927BE3/TR7 meets industry standards.
7.What is the process for return or replacement of 1PMT5927BE3/TR7?
All 1PMT5927BE3/TR7 units undergo pre-shipment inspection (PSI). If there is an issue with 1PMT5927BE3/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 1PMT5927BE3/TR7 part is unused and in its original packaging.
Return procedure for 1PMT5927BE3/TR7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1PMT5927BE3/TR7 Tags
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MMBZ5240B-7-F
Diodes Incorporated
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BZX84C3V3LT1G
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