Microchip Technology 1PMT5927CE3/TR13
- Part No.:
- 1PMT5927CE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-216AA
- Datasheet:
-
1PMT5927CE3/TR13.pdf
- Description:
- DIODE ZENER 12V 3W DO216AA
- Quantity:
- Payment:

- Shipping:

Inventory:4,448
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Product details
Overview
1PMT5927CE3/TR13 from Microsemi is a 12 V, ±5% tolerance Zener diode in Powermite® surface-mount package, rated for 3.0 W DC power dissipation at TAB 1 = 60°C, with 31.2 mA test current (IZT), 6.5 Ω dynamic impedance (ZZT), and thermal resistance of 30°C/W junction-to-TAB1 - used for precision voltage regulation in power supply feedback loops and overvoltage protection circuits.
For engineers reviewing the 1PMT5927CE3/TR13 datasheet, 1PMT5927CE3/TR13 pinout, 1PMT5927CE3/TR13 application, or 1PMT5927CE3/TR13 equivalent, key selection criteria include Zener voltage tolerance, power derating above 60°C, reverse leakage at VR = 1 V (≤1 µA), ESD rating (>16 kV HBM), and compatibility with EIA-481 tape-and-reel automated assembly.
Technical Context
This device operates as a two-terminal voltage reference diode, conducting in reverse breakdown to maintain stable 12 V across its terminals under regulated current conditions. Its Powermite® package integrates a full metallic bottom and locking tab that serve as both mechanical anchor and thermal path to PCB copper, enabling direct heat conduction from junction to mounting pad.
The 1PMT5927CE3/TR13 exhibits low knee impedance (ZZK = 0.25 Ω) and tight knee current (IZK = 0.25 mA), supporting stable regulation even at low bias currents. It meets >16 kV human-body-model ESD immunity and is specified for operation across -55°C to +150°C junction temperature range.
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 production tolerance band |
| Power Dissipation | 3.0 W at TAB 1 = 60°C - maximum continuous DC power before thermal shutdown or degradation |
| Dynamic Impedance (ZZT) | 6.5 Ω at IZT - determines output voltage variation under load current transients |
| Thermal Resistance | 30°C/W junction-to-TAB1 - quantifies temperature rise per watt; requires adequate PCB copper area for thermal management |
| Reverse Leakage (IR) | ≤1 µA at VR = 1 V - ensures minimal standby current in high-impedance bias networks |
| ESD Rating | >16 kV per Human Body Model - supports robust handling in unshielded manufacturing environments |
| Knee Current (IZK) | 0.25 mA - minimum current needed to enter useful regulation region; enables low-power reference use |
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 (TR13 = 13-inch reel, 12,000 pcs).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TAB 1 | Cathode | Primary thermal and electrical connection point; must be soldered to PCB copper pour for thermal performance and circuit return path |
| Lead 2 | Anode | Standard anode terminal; reverse-biased during Zener operation; connects to regulated node or feedback divider |
Key Features
| Feature | Design Value |
|---|---|
| Full metallic bottom | Eliminates solder flux entrapment during reflow, improving long-term reliability and void-free solder joints |
| Integral heat sink locking tab | Provides mechanical retention during automated insertion and enhances thermal conduction to PCB |
| Low reverse leakage (≤1 µA @ 1 V) | Minimizes quiescent current draw in battery-powered or high-impedance reference circuits |
| ESD rating >16 kV HBM | Reduces need for external ESD protection in board-level handling and field deployment |
| Compatible with automatic insertion | Enables high-throughput placement using standard SMT pick-and-place equipment without special tooling |
Applications
| Switch-Mode Power Supply Feedback | Overvoltage Protection Clamp |
|---|---|
Use Scenario: Regulating output voltage in isolated flyback or forward converters via optocoupler-coupled feedback loop. IC Role / Device Role / Timing Role: Zener reference providing precise 12 V threshold to error amplifier input. Use Value: Maintains ±5% output regulation accuracy across line/load/temperature; 6.5 Ω ZZT minimizes ripple-induced error. | Use Scenario: Clamping transient surges on 12 V rail in automotive body control modules. IC Role / Device Role / Timing Role: Shunt protector diverting excess energy to ground when rail exceeds 12.6 V. Use Value: 3.0 W rating sustains 100 ms surge events; >16 kV ESD withstand prevents false triggering. |
| Low-Power Reference Source | Industrial Sensor Excitation |
Use Scenario: Generating stable 12 V bias for analog front-end op-amps in portable instrumentation. IC Role / Device Role / Timing Role: Precision voltage source powering signal conditioning circuitry. Use Value: 0.25 mA IZK enables operation from microampere current sources; ≤1 µA IR preserves battery life. | Use Scenario: Supplying excitation voltage to 4–20 mA current-loop pressure sensors in factory automation. IC Role / Device Role / Timing Role: Stable shunt regulator maintaining constant 12 V across sensor bridge. Use Value: 30°C/W thermal resistance allows direct PCB mounting without heatsink; ±5% tolerance meets industrial calibration requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5927B | Same 12 V Zener voltage, but DO-41 through-hole package; 1.0 W rating; no metallic bottom or locking tab | Requires manual or wave-solder assembly; unsuitable for high-density SMT layouts or thermal-critical designs | Select only if legacy through-hole compatibility or lower-cost procurement is prioritized over thermal performance |
| BZX84-C12 | SOT-23 package; 12 V ±5%; 300 mW rating; 15 Ω ZZT; no specified ESD rating | Limited to low-power signal-level regulation; cannot sustain 3.0 W surges or continuous dissipation | Choose for space-constrained logic-level references where power handling is secondary |
Compared with 1N5927B and BZX84-C12, the 1PMT5927CE3/TR13 delivers 3× higher power capability, superior thermal path via TAB 1, and certified ESD robustness - making it uniquely suited for industrial-grade SMT power regulation where reliability and thermal margin are critical.
Availability
1PMT5927CE3/TR13 is available at Aetrix Electronics and suitable for switch-mode power supplies, overvoltage clamping circuits, low-power reference sources, and industrial sensor excitation requiring stable component supply and consistent parametric performance across production lots.
Supply support for 1PMT5927CE3/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 designed to deliver high-power surface-mount voltage regulation with enhanced thermal performance and manufacturability - addressing needs in compact, thermally demanding power systems.
FAQ
What is the Zener voltage tolerance for 1PMT5927CE3/TR13?
The 1PMT5927CE3/TR13 has a nominal Zener voltage of 12 V with a standard tolerance of ±5%, as confirmed in the MSC0995.PDF datasheet. This tolerance applies at IZT = 31.2 mA and TAB temperature of 30°C. Tighter tolerances (±2% and ±1%) are available with suffixes C and D, but the CE3 variant specifies ±5%.
How is thermal management handled for 1PMT5927CE3/TR13?
Thermal management for 1PMT5927CE3/TR13 relies on its Powermite® package design: the full metallic bottom and locking tab (TAB 1) serve as the primary thermal path to the PCB. With a junction-to-TAB1 thermal resistance of 30°C/W, effective cooling requires sufficient copper area connected to TAB 1. Derating begins above 60°C TAB temperature, per the 3.0 W maximum rating.
Is 1PMT5927CE3/TR13 compatible with automated SMT assembly?
Yes, 1PMT5927CE3/TR13 is explicitly designed for compatibility with automatic insertion equipment. Its Powermite® package features mechanical stability, defined tape-and-reel packaging per EIA-481 standard (TR13 = 13-inch reel), and a locking tab that aids pick-and-place accuracy and retention during reflow - all documented in the MSC0995.PDF mechanical specifications.
What is the maximum reverse leakage current for 1PMT5927CE3/TR13?
The maximum reverse leakage current (IR) for 1PMT5927CE3/TR13 is 1 µA at VR = 1 V, as specified in the Electrical Characteristics table of MSC0995.PDF. This low leakage supports use in high-impedance bias networks and battery-sensitive applications where standby current must be minimized.
Does 1PMT5927CE3/TR13 have ESD protection built-in?
Yes, 1PMT5927CE3/TR13 has an ESD rating exceeding 16 kV per the Human Body Model (HBM), as stated in the FEATURES section of MSC0995.PDF. This level of on-chip ESD robustness reduces susceptibility to handling damage and eliminates the need for additional board-level protection in many industrial and automotive applications.
1PMT5927CE3/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):
- 12 V
- Tolerance:
- ±2%
- 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
1PMT5927CE3/TR13 FAQ
1.How can I place an order for 1PMT5927CE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1PMT5927CE3/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 1PMT5927CE3/TR13 reliable?
The price and inventory of 1PMT5927CE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PMT5927CE3/TR13 is usually 5 days.
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1PMT5927CE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1PMT5927CE3/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 1PMT5927CE3/TR13?
For technical support, including 1PMT5927CE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PMT5927CE3/TR13 requirements.
6.How does Aetrix verify that 1PMT5927CE3/TR13 is sourced from the original manufacturer or authorized distributors?
All 1PMT5927CE3/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 1PMT5927CE3/TR13 meets industry standards.
7.What is the process for return or replacement of 1PMT5927CE3/TR13?
All 1PMT5927CE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with 1PMT5927CE3/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 1PMT5927CE3/TR13 part is unused and in its original packaging.
Return procedure for 1PMT5927CE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1PMT5927CE3/TR13 Tags

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