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Microchip Technology 1PMT5927CE3/TR7
- Part No.:
- 1PMT5927CE3/TR7
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-216AA
- Datasheet:
-
1PMT5927CE3/TR7.pdf
- Description:
- DIODE ZENER 12V 3W DO216AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,380
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Product details
Overview
1PMT5927CE3/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 31.2 mA test current (IZT), 6.5 Ω dynamic impedance (ZZT), and 1.0 µA max reverse leakage at 9.1 V. It serves as a precision voltage reference or overvoltage clamp in compact DC power rails and regulator feedback paths.
For engineers reviewing the 1PMT5927CE3/TR7 datasheet, 1PMT5927CE3/TR7 pinout, 1PMT5927CE3/TR7 application, or 1PMT5927CE3/TR7 equivalent, key selection criteria include zener voltage tolerance, thermal resistance (30°C/W junction-to-TAB1), ESD rating (>16 kV HBM), low knee impedance, and compatibility with automated SMT assembly using EIA-481 tape-and-reel packaging.
Technical Context
This device operates as a single-terminal voltage-regulating Zener diode with cathode designated by TAB 1. Its Powermite® package integrates a full metallic bottom and locking tab to enhance thermal conduction and eliminate solder flux entrapment during reflow.
The 1PMT5927CE3/TR7 is characterized at TL = 30°C with IZT = 31.2 mA, VZ = 12.0 V ±5%, ZZT = 6.5 Ω, and exhibits 1.0 µA reverse leakage at VR = 9.1 V - confirming stable regulation under light-load conditions typical of sensing and biasing circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage | 12.0 V ±5% - precise clamping threshold for 12 V rail protection or reference generation |
| Power Dissipation | 3.0 W at TAB 1 = 60°C - enables high-energy transient suppression without external heatsink |
| Test Current (IZT) | 31.2 mA - operating point where VZ and ZZT are guaranteed per spec |
| Dynamic Impedance | 6.5 Ω - low AC impedance ensures minimal voltage shift under load transients |
| Thermal Resistance | 30°C/W junction-to-TAB1 - supports reliable thermal management when mounted on copper pour |
| ESD Rating | >16 kV HBM - robust handling in automated assembly and end-use environments |
| Reverse Leakage | 1.0 µA max at 9.1 V - negligible quiescent current in standby or high-impedance bias networks |
Pinout & Package
Package: Powermite® surface-mount molded package with full metallic bottom and integral heat-sink locking tab; cathode identified by TAB 1; DO-216 outline; 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 voltage reference chains |
Key Features
| Feature | Design Value |
|---|---|
| Surface-mount Powermite® package | Enables high-density PCB layout while delivering 3.0 W power handling comparable to larger through-hole Zeners |
| Integral heat-sink locking tab | Improves thermal transfer to PCB copper and prevents mechanical lift during thermal cycling |
| Full metallic bottom | Eliminates solder flux entrapment risk during reflow, improving long-term reliability and void-free solder joints |
| ESD robustness | >16 kV HBM rating reduces risk of field failure in handling and system-level ESD events |
Applications
| DC Power Rail Clamping | Feedback Reference in SMPS |
|---|---|
Use Scenario: Protecting 12 V microcontroller I/O lines against load-dump transients in automotive body electronics. IC Role / Device Role / Timing Role: Zener clamping element shunting excess energy to ground via TAB 1 thermal pad. Use Value: 3.0 W rating and 30°C/W thermal resistance allow sustained clamping without derating in confined enclosures. | Use Scenario: Providing stable 12 V reference for optocoupler-based feedback in isolated flyback converters. IC Role / Device Role / Timing Role: Precision voltage reference setting error amplifier trip point in secondary-side regulation. Use Value: ±5% VZ tolerance and low 6.5 Ω ZZT minimize output voltage drift across line/load/temperature variations. |
| Low-Power Sensor Biasing | Overvoltage Protection in Industrial IO |
Use Scenario: Biasing analog sensor bridges requiring stable 12 V excitation in battery-powered condition monitoring nodes. IC Role / Device Role / Timing Role: Low-leakage (1.0 µA) Zener reference maintaining accuracy during ultra-low-power sleep modes. Use Value: Minimal reverse current preserves battery life while ensuring rapid wake-up voltage stability. | Use Scenario: Safeguarding PLC analog input channels against accidental 24 V miswiring or surge coupling. IC Role / Device Role / Timing Role: Primary overvoltage clamp limiting input to 12 V before signal conditioning circuitry. Use Value: Robust 16 kV HBM ESD rating and DO-216 ruggedness withstand repeated industrial handling and field surges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5349B | Same 12 V nominal, but TO-220 package; higher thermal resistance (20°C/W case-to-ambient); no metallic bottom or locking tab | Requires heatsink for 3 W operation; not suitable for high-density SMT layouts | Select 1N5349B only when through-hole mounting and forced-air cooling are available |
| BZX84-C12 | SOT-23 package; 300 mW rating; 12 V ±5%; 90 Ω ZZT; no ESD rating specified | Limited to low-power biasing; cannot sustain 3 W clamping energy | Choose BZX84-C12 only for space-constrained, sub-500 mW reference applications |
Compared with 1N5349B and BZX84-C12, the 1PMT5927CE3/TR7 uniquely combines 3.0 W SMT power handling, 30°C/W thermal resistance, and >16 kV ESD robustness - making it the only option for compact, high-reliability 12 V clamping in automotive and industrial control modules.
Availability
1PMT5927CE3/TR7 is available at Aetrix Electronics and suitable for automotive body control units, industrial PLC analog inputs, and isolated DC-DC converter feedback loops requiring stable component supply with full traceability and long-lifecycle support.
Supply support for 1PMT5927CE3/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 radiation-hardened components for aerospace, defense, and industrial markets.
The Powermite® Zener diode product line was designed specifically for high-power-density surface-mount voltage regulation and transient suppression in harsh-environment electronics where thermal performance and assembly reliability are critical.
FAQ
What is the Zener voltage tolerance for 1PMT5927CE3/TR7?
The 1PMT5927CE3/TR7 has a standard Zener voltage tolerance of ±5% at 12.0 V, measured at IZT = 31.2 mA and TAB temperature = 30°C. Tighter tolerances (±2% and ±1%) are available with suffixes C and D, respectively, but the CE3 designation confirms the ±5% grade. This tolerance ensures predictable clamping behavior in production-grade power management circuits.
How is thermal performance defined for 1PMT5927CE3/TR7?
The 1PMT5927CE3/TR7 has a junction-to-TAB1 thermal resistance of 30°C/W, meaning each watt dissipated raises the junction temperature 30°C above the TAB 1 temperature. At the rated 3.0 W dissipation and TAB 1 = 60°C, the junction reaches 150°C - matching the maximum storage/junction temperature limit. Proper PCB copper area under TAB 1 is essential to maintain this rating.
Is 1PMT5927CE3/TR7 compatible with lead-free reflow processes?
Yes, the 1PMT5927CE3/TR7 is qualified for standard lead-free reflow profiles, including peak temperatures up to 260°C. Its Powermite® package uses mold compound and metallization rated for JEDEC J-STD-020 moisture sensitivity level (MSL) 1, and the full metallic bottom ensures uniform thermal expansion and void-free solder joints during Pb-free reflow.
What does the 'TR7' suffix indicate in 1PMT5927CE3/TR7?
The 'TR7' suffix denotes tape-and-reel packaging per EIA-481 standard, with 3,000 pieces per 7-inch reel. This format is optimized for high-speed pick-and-place equipment and ensures consistent orientation (cathode TAB 1 leading) during automated assembly - critical for achieving first-pass yield in volume SMT production of the 1PMT5927CE3/TR7.
Can 1PMT5927CE3/TR7 be used in place of older through-hole Zeners like 1N4742A?
Yes, the 1PMT5927CE3/TR7 provides functional equivalence to the 1N4742A (12 V, 1 W) but with significantly higher power capability (3.0 W vs. 1 W) and superior thermal performance (30°C/W vs. ~50°C/W). However, due to its Powermite® footprint and TAB 1 cathode, direct PCB replacement requires layout revision - it is not a drop-in mechanical substitute, though it delivers enhanced electrical and thermal performance.
1PMT5927CE3/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:
- ±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/TR7 FAQ
1.How can I place an order for 1PMT5927CE3/TR7 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1PMT5927CE3/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 1PMT5927CE3/TR7 reliable?
The price and inventory of 1PMT5927CE3/TR7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PMT5927CE3/TR7 is usually 5 days.
3.What payment methods are accepted for 1PMT5927CE3/TR7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1PMT5927CE3/TR7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1PMT5927CE3/TR7?
1PMT5927CE3/TR7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1PMT5927CE3/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 1PMT5927CE3/TR7?
For technical support, including 1PMT5927CE3/TR7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PMT5927CE3/TR7 requirements.
6.How does Aetrix verify that 1PMT5927CE3/TR7 is sourced from the original manufacturer or authorized distributors?
All 1PMT5927CE3/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 1PMT5927CE3/TR7 meets industry standards.
7.What is the process for return or replacement of 1PMT5927CE3/TR7?
All 1PMT5927CE3/TR7 units undergo pre-shipment inspection (PSI). If there is an issue with 1PMT5927CE3/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 1PMT5927CE3/TR7 part is unused and in its original packaging.
Return procedure for 1PMT5927CE3/TR7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1PMT5927CE3/TR7 Tags
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