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Microchip Technology 1PMT5941CE3/TR13
- Part No.:
- 1PMT5941CE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-216AA
- Datasheet:
-
1PMT5941CE3/TR13.pdf
- Description:
- DIODE ZENER 47V 3W DO216AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,118
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Product details
Overview
1PMT5941CE3/TR13 from Microsemi is a 47 V, ±5% tolerance Zener diode in the Powermite® surface-mount package, rated for 3.0 W DC power dissipation at TAB 1 = 60°C, with 67 Ω dynamic impedance at 8.0 mA test current and 1000 µA max reverse leakage at 35.8 V. It serves as a precision voltage reference or overvoltage clamp in power supply regulation circuits.
For engineers reviewing the 1PMT5941CE3/TR13 datasheet, 1PMT5941CE3/TR13 pinout, 1PMT5941CE3/TR13 application, or 1PMT5941CE3/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, and compatibility with automated SMT assembly.
Technical Context
This Zener diode operates in reverse breakdown mode with tightly controlled voltage regulation across its specified test current range. Its Powermite® package integrates a full metallic bottom and locking tab to enhance thermal conduction and mechanical stability during reflow soldering.
The device exhibits low reverse leakage (≤1000 µA at VR = 35.8 V), 30°C/W thermal resistance from junction to TAB 1, and ESD robustness exceeding 16 kV per Human Body Model - critical for industrial and automotive power rail protection applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 47 V ±5% at IZT = 8.0 mA - defines stable regulation point under nominal bias |
| Power Dissipation | 3.0 W at TAB 1 = 60°C - sets maximum continuous power handling with heatsink tab |
| Dynamic Impedance (ZZT) | 67 Ω at IZT = 8.0 mA - determines voltage regulation sensitivity to current variation |
| Reverse Leakage (IR) | ≤1000 µA at VR = 35.8 V - ensures minimal standby current in clamping configurations |
| Thermal Resistance | 30°C/W junction-to-TAB 1 - enables thermal design using tab as primary heat path |
| ESD Rating | >16 kV HBM - supports robustness in handling and board-level ESD events |
Pinout & Package
Package: Powermite® surface-mount molded package with full metallic bottom and integral locking tab; cathode designated by TAB 1; mounting position unrestricted; weight ≈ 0.016 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TAB 1 | Cathode | Primary thermal and electrical connection point; must be soldered to PCB copper for thermal management and circuit return |
| Lead 2 | Anode | Standard anode terminal; electrically isolated from TAB 1; used for forward bias or reverse-bias connection |
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 anchoring and direct thermal path from junction to PCB, reducing thermal resistance to 30°C/W |
| Automated insertion compatibility | Designed for pick-and-place and reflow processes per EIA-481 tape-and-reel packaging (TR13 = 13-inch reel, 12,000 pcs) |
| ESD robustness | >16 kV per Human Body Model - reduces need for external ESD protection in input-stage clamping |
Applications
| Switch-Mode Power Supply Feedback | Industrial Sensor Reference |
|---|---|
Use Scenario: Regulates feedback voltage in isolated flyback or forward converter secondary-side error amplifiers. IC Role / Device Role / Timing Role: Zener reference providing stable 47 V threshold for optocoupler-driven feedback loop. Use Value: Tight ±5% tolerance and low dynamic impedance ensure consistent output voltage regulation across line/load variations. | Use Scenario: Supplies precise bias voltage to analog sensor signal conditioning stages in harsh environments. IC Role / Device Role / Timing Role: Voltage reference and overvoltage clamp protecting ADC front-end inputs. Use Value: 30°C/W thermal resistance and >16 kV HBM rating maintain accuracy and survivability in high-noise industrial settings. |
| Automotive Lighting Control | Telecom Line Card Protection |
Use Scenario: Clamps transient surges on LED driver supply rails in headlamp control modules. IC Role / Device Role / Timing Role: Transient voltage suppressor safeguarding MOSFET gate drivers and current sense ICs. Use Value: 3.0 W power rating and low knee impedance enable reliable energy absorption without thermal runaway. | Use Scenario: Protects Ethernet PHY interface power rails from induced lightning surges and hot-swap transients. IC Role / Device Role / Timing Role: Primary DC clamping element in multi-stage telecom surge protection circuits. Use Value: Full metallic bottom ensures repeatable solder joint integrity after multiple thermal cycles in field-deployed equipment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5941B | Same 47 V zener voltage, but DO-41 through-hole package; no metallic tab; 60°C/W thermal resistance | Lacks integrated heat sinking; unsuitable for high-density SMT layouts or thermally constrained designs | Select 1PMT5941CE3/TR13 when board space, thermal performance, or automated assembly are priorities |
| BZX84-C47 | SOT-23 package; 47 V ±5%; 300 mW rating; 90 Ω ZZT; 300 µA IR at 35.8 V | Lower power handling limits use to low-current references; not suitable for 3 W clamping roles | Choose 1PMT5941CE3/TR13 where sustained 3.0 W dissipation or superior thermal coupling is required |
Compared with 1N5941B and BZX84-C47, the 1PMT5941CE3/TR13 delivers higher power capability, lower thermal resistance, and SMT process compatibility - making it the preferred choice for thermally demanding, high-reliability power regulation and clamping.
Availability
1PMT5941CE3/TR13 is available at Aetrix Electronics and suitable for switch-mode power supplies, industrial sensor interfaces, automotive lighting controllers, and telecom line card protection requiring stable component supply and traceable sourcing.
Supply support for 1PMT5941CE3/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 engineered for high-power density surface-mount voltage regulation and transient suppression, targeting applications where thermal management, ESD resilience, and automated assembly compatibility are critical.
FAQ
What is the zener voltage tolerance for 1PMT5941CE3/TR13?
The 1PMT5941CE3/TR13 has a standard zener voltage tolerance of ±5% at 47 V, measured at IZT = 8.0 mA with TAB 1 held at 30°C. Tighter tolerances (±2%, ±1%) are available with suffixes C and D, but the CE3 designation confirms the ±5% version. This tolerance directly impacts regulation accuracy in precision reference circuits using the 1PMT5941CE3/TR13.
How is thermal management handled in the 1PMT5941CE3/TR13 package?
The 1PMT5941CE3/TR13 uses its metallic TAB 1 as the primary thermal conduction path, achieving 30°C/W junction-to-tab thermal resistance. Effective cooling requires soldering TAB 1 to a sufficiently sized PCB copper area acting as a heatsink. Unlike standard SOD packages, the Powermite® design eliminates flux entrapment and enhances thermal transfer - essential for maintaining reliability under 3.0 W continuous dissipation in the 1PMT5941CE3/TR13.
Is the 1PMT5941CE3/TR13 compatible with lead-free reflow processes?
Yes, the 1PMT5941CE3/TR13 is qualified for standard lead-free reflow profiles, including peak temperatures up to 260°C. Its molded Powermite® package and metallic bottom are designed to withstand thermal cycling without delamination or solder joint failure. The device's 150°C maximum storage temperature and robust construction make it suitable for high-volume manufacturing using the 1PMT5941CE3/TR13 in RoHS-compliant production lines.
What does the "TR13" suffix indicate in 1PMT5941CE3/TR13?
The "TR13" suffix denotes EIA-481 compliant tape-and-reel packaging on a 13-inch reel containing 12,000 units - optimized for high-speed pick-and-place equipment. This packaging format ensures consistent orientation (cathode marked on TAB 1), moisture sensitivity level (MSL) compliance, and automated handling integrity. The TR13 configuration is standard for volume procurement of the 1PMT5941CE3/TR13 in SMT production environments.
Can the 1PMT5941CE3/TR13 be used in series or parallel configurations?
The 1PMT5941CE3/TR13 is not recommended for parallel operation due to mismatched zener impedances causing current imbalance and thermal runaway. Series connection is feasible for higher voltage clamping, but total power dissipation must remain within derated limits based on individual device thermal resistance and PCB layout. For multi-device configurations, individual thermal analysis and current-sharing verification are required before deploying the 1PMT5941CE3/TR13 in such arrangements.
1PMT5941CE3/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):
- 47 V
- Tolerance:
- ±2%
- Power - Max:
- 3 W
- Impedance (Max) (Zzt):
- 67 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 35.8 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
1PMT5941CE3/TR13 FAQ
1.How can I place an order for 1PMT5941CE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1PMT5941CE3/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 1PMT5941CE3/TR13 reliable?
The price and inventory of 1PMT5941CE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PMT5941CE3/TR13 is usually 5 days.
3.What payment methods are accepted for 1PMT5941CE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1PMT5941CE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1PMT5941CE3/TR13?
1PMT5941CE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1PMT5941CE3/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 1PMT5941CE3/TR13?
For technical support, including 1PMT5941CE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PMT5941CE3/TR13 requirements.
6.How does Aetrix verify that 1PMT5941CE3/TR13 is sourced from the original manufacturer or authorized distributors?
All 1PMT5941CE3/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 1PMT5941CE3/TR13 meets industry standards.
7.What is the process for return or replacement of 1PMT5941CE3/TR13?
All 1PMT5941CE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with 1PMT5941CE3/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 1PMT5941CE3/TR13 part is unused and in its original packaging.
Return procedure for 1PMT5941CE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1PMT5941CE3/TR13 Tags
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MMBZ5240B-7-F
Diodes Incorporated
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BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
Diodes Incorporated
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Diodes Incorporated
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BZX84C3V3LT1G
onsemi
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MMSZ5245BS-7-F
Diodes Incorporated
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MM5Z5V1ST1G
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SMAJ4744A-TP
Micro Commercial Co
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