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Microchip Technology 1PMT5947CE3/TR13
- Part No.:
- 1PMT5947CE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-216AA
- Datasheet:
-
1PMT5947CE3/TR13.pdf
- Description:
- DIODE ZENER 82V 3W DO216AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,921
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Product details
Overview
1PMT5947CE3/TR13 from Microsemi is a 82 V, ±5% tolerance surface-mount Zener diode in Powermite® package, rated for 3.0 W DC power dissipation at TAB 1 = 60°C, with 4.6 mA test current (IZT), 160 Ω dynamic impedance (ZZT), and 1 µA max reverse leakage at 62.2 V. It serves as a precision voltage reference or overvoltage clamp in DC power rails and regulator feedback paths.
For engineers reviewing the 1PMT5947CE3/TR13 datasheet, 1PMT5947CE3/TR13 pinout, 1PMT5947CE3/TR13 application, or 1PMT5947CE3/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 (0.25 Ω at IZK), and compatibility with automated SMT assembly per EIA-481 tape-and-reel.
Technical Context
This Zener diode operates in reverse breakdown mode with tightly controlled voltage regulation across its specified current range. Its Powermite® package integrates a full metallic bottom and locking tab to enhance thermal conduction and eliminate solder flux entrapment during reflow.
Electrical behavior is defined at TL = 30°C with measurement performed 20 seconds after DC current application. Voltage tolerance is ±5% standard (suffix 'C' denotes ±2%, 'D' ±1%), and dynamic impedance is measured using 60 Hz RMS AC current equal to 10% of IZT superimposed on DC bias.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 82 V ±5% - stable reference voltage at 4.6 mA test current, suitable for 75–89 V regulation windows |
| Power Dissipation | 3.0 W at TAB 1 = 60°C - enables high-energy clamping without external heatsink in compact layouts |
| Dynamic Impedance (ZZT) | 160 Ω at IZT = 4.6 mA - determines voltage deviation under load transients; lower values improve regulation fidelity |
| Reverse Leakage (IR) | ≤1 µA at VR = 62.2 V - ensures minimal standby current in high-impedance bias networks |
| Thermal Resistance | 30°C/W junction-to-TAB - defines temperature rise per watt; critical for thermal design in enclosed or high-ambient environments |
| ESD Rating | >16 kV HBM - provides robust handling margin during board assembly and field operation |
| Knee Impedance (ZZK) | 0.25 Ω at IZK - supports stable regulation even near minimum operating current, improving low-power accuracy |
Pinout & Package
Package: Powermite® surface-mount molded package with full metallic bottom and integral heat-sink locking tab; cathode designated by TAB 1; weight ≈ 0.016 g; mechanical outline conforms to DO-216.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TAB 1 | Cathode | Primary thermal path and electrical cathode connection; must be soldered to copper pour for thermal management |
| Lead 2 | Anode | Standard anode terminal; mounted opposite TAB 1; requires standard SMT pad layout per DO-216 footprint |
Key Features
| Feature | Design Value |
|---|---|
| Full metallic bottom | Eliminates solder flux entrapment during reflow, reducing post-assembly cleaning and voiding risk |
| Integral heat-sink locking tab | Provides mechanical anchoring and direct thermal conduction path from junction to PCB copper |
| EIA-481 tape-and-reel packaging | Enables seamless integration into high-speed pick-and-place equipment (7″ reel: 3,000 pcs; 13″ reel: 12,000 pcs) |
| Low knee impedance (0.25 Ω) | Ensures stable regulation down to 0.25 mA, supporting ultra-low-power bias and sensing circuits |
| ±5% Zener tolerance (suffix 'C' = ±2%, 'D' = ±1%) | Allows precise voltage setting without external trimming; 'E3' suffix confirms ±5% standard grade |
Applications
| DC Power Rail Clamping | Feedback Reference for Switching Regulators |
|---|---|
Use Scenario: Protecting 75–90 V DC bus against transient overvoltage events in industrial motor drives. IC Role / Device Role / Timing Role: Zener clamping device shunting excess energy to ground when bus exceeds 82 V threshold. Use Value: 3.0 W power rating and 30°C/W thermal resistance enable sustained clamping without thermal runaway under repeated surges. | Use Scenario: Providing stable reference voltage to error amplifier input in isolated flyback converter feedback loop. IC Role / Device Role / Timing Role: Precision voltage reference defining output regulation setpoint via optocoupler bias network. Use Value: ±5% tolerance and low ZZK ensure tight output regulation (<±2%) across line/load/temperature variations. |
| Programmable Overvoltage Lockout | High-Voltage Sensor Biasing |
Use Scenario: Triggering shutdown logic when battery stack voltage exceeds safe limit in 48 V telecom backup systems. IC Role / Device Role / Timing Role: Zener-based comparator input threshold element enabling programmable trip point at 82 V. Use Value: Low IR (≤1 µA) prevents loading of high-impedance divider networks, preserving trip accuracy. | Use Scenario: Biasing avalanche photodiode (APD) in fiber-optic receiver front-end requiring stable 80–85 V bias. IC Role / Device Role / Timing Role: High-voltage, low-noise bias source maintaining APD gain stability under temperature drift. Use Value: Tight VZ tolerance and 160 Ω ZZT minimize bias voltage variation, directly improving signal-to-noise ratio. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMF82A (ON Semiconductor) | DO-219AB package; 82 V, 1 W rating; 150 Ω ZZT; 1 µA IR at 65.6 V | Limited to lower-power clamping; no integral heat sink tab; higher thermal resistance (~100°C/W) | Select when board space is constrained and power <1 W; not suitable for 3 W continuous dissipation |
| BZX84-C82 (Diodes Inc.) | SOT-23 package; 82 V, 300 mW rating; 180 Ω ZZT; 100 nA IR at 65.6 V | Only for signal-level referencing; incompatible with high-current or high-thermal-load use cases | Choose only for low-power bias networks where thermal mass and power handling are non-critical |
Compared with SMF82A and BZX84-C82, the 1PMT5947CE3/TR13 delivers 3× higher power capability, 3× lower thermal resistance, and integrated mechanical thermal enhancement-making it uniquely suited for industrial-grade clamping and regulation where reliability under thermal stress is mandatory.
Availability
1PMT5947CE3/TR13 is available at Aetrix Electronics and suitable for industrial motor drives, telecom power supplies, high-voltage sensor biasing, and programmable overvoltage protection circuits requiring stable component supply and long-term manufacturability.
Supply support for 1PMT5947CE3/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 family-including 1PMT5947CE3/TR13-is engineered for high-power surface-mount voltage regulation and transient suppression in harsh-environment applications where thermal performance and assembly robustness are critical.
FAQ
What is the Zener voltage tolerance for 1PMT5947CE3/TR13?
The 1PMT5947CE3/TR13 has a nominal Zener voltage of 82 V with a standard tolerance of ±5%, as indicated by the 'E3' suffix. This tolerance is verified at IZT = 4.6 mA and TAB temperature = 30°C. Tighter tolerances (±2% with 'C', ±1% with 'D') are available but not applicable to this specific part number.
How is thermal management handled in the 1PMT5947CE3/TR13 package?
The 1PMT5947CE3/TR13 uses the Powermite® package with a full metallic bottom and integral locking tab that serves as both mechanical anchor and primary thermal conduction path. Its specified thermal resistance is 30°C/W junction-to-TAB, meaning effective heat transfer requires direct soldering of TAB 1 to a thermally robust PCB copper area.
Can 1PMT5947CE3/TR13 be used in automated SMT assembly lines?
Yes, the 1PMT5947CE3/TR13 is supplied in EIA-481 compliant tape-and-reel format (TR13 indicates 13-inch reel, 12,000 pieces), and its Powermite® package is explicitly designed for compatibility with automatic insertion and high-speed pick-and-place equipment, including flux-free reflow profiles.
What is the maximum reverse leakage current for 1PMT5947CE3/TR13?
The 1PMT5947CE3/TR13 exhibits ≤1 µA reverse leakage current (IR) when biased at 62.2 V (VR), measured at TL = 30°C. This low leakage supports high-impedance bias networks and minimizes standby power loss in precision reference applications.
Does 1PMT5947CE3/TR13 meet industry ESD standards?
Yes, the 1PMT5947CE3/TR13 is rated for >16 kV per Human Body Model (HBM), exceeding JEDEC JS-001 requirements for robust electrostatic discharge immunity. This rating applies to both handling and operational conditions, supporting reliable deployment in unshielded industrial environments.
1PMT5947CE3/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):
- 82 V
- Tolerance:
- ±2%
- Power - Max:
- 3 W
- Impedance (Max) (Zzt):
- 160 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 62.2 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
1PMT5947CE3/TR13 FAQ
1.How can I place an order for 1PMT5947CE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1PMT5947CE3/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 1PMT5947CE3/TR13 reliable?
The price and inventory of 1PMT5947CE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PMT5947CE3/TR13 is usually 5 days.
3.What payment methods are accepted for 1PMT5947CE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1PMT5947CE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1PMT5947CE3/TR13?
1PMT5947CE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1PMT5947CE3/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 1PMT5947CE3/TR13?
For technical support, including 1PMT5947CE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PMT5947CE3/TR13 requirements.
6.How does Aetrix verify that 1PMT5947CE3/TR13 is sourced from the original manufacturer or authorized distributors?
All 1PMT5947CE3/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 1PMT5947CE3/TR13 meets industry standards.
7.What is the process for return or replacement of 1PMT5947CE3/TR13?
All 1PMT5947CE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with 1PMT5947CE3/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 1PMT5947CE3/TR13 part is unused and in its original packaging.
Return procedure for 1PMT5947CE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1PMT5947CE3/TR13 Tags
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