My Inquiry
My Account
Microchip Technology 1PMT5941C/TR13
- Part No.:
- 1PMT5941C/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-216AA
- Datasheet:
-
1PMT5941C/TR13.pdf
- Description:
- DIODE ZENER 47V 3W DO216AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,866
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1PMT5941C/TR13 from Microsemi is a 47 V, ±1% tolerance surface-mount Zener diode in the Powermite® 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 <1 µA reverse leakage at 35.8 V. It serves as a precision voltage reference or overvoltage clamp in DC power rails and regulator feedback networks.
For engineers reviewing the 1PMT5941C/TR13 datasheet, 1PMT5941C/TR13 pinout, 1PMT5941C/TR13 application, or 1PMT5941C/TR13 equivalent, key selection criteria include its tight 1% voltage tolerance, low 30°C/W junction-to-tab thermal resistance, ESD rating >16 kV HBM, and compatibility with automated SMT assembly using EIA-481 tape-and-reel packaging.
Technical Context
This Zener diode operates in reverse breakdown mode with a nominal zener voltage of 47 V measured at 8.0 mA (IZT) with TAB 1 temperature held at 30°C. Its 67 Ω dynamic impedance (ZZT) ensures stable regulation under small-signal current variations, while the 0.25 mA knee current (IZK) defines the onset of reliable breakdown conduction.
The Powermite® package features a full metallic bottom and integral locking tab acting as a thermal path to PCB copper, enabling 3.0 W power handling without external heatsinking when mounted on ≥1 sq-in copper area. Junction temperature range is –55°C to +150°C, supporting industrial and automotive under-hood environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 47 V ±1% at IZT = 8.0 mA, TL = 30°C - enables precise voltage clamping or reference generation with minimal calibration drift |
| Power Dissipation | 3.0 W at TAB 1 = 60°C - supports high-energy transient suppression in compact layouts without forced airflow |
| Dynamic Impedance | 67 Ω at IZT = 8.0 mA - limits output voltage variation to <0.5 V per 10 mA load change in regulation circuits |
| Reverse Leakage | <1 µA at VR = 35.8 V - ensures negligible quiescent current draw in battery-powered standby circuits |
| Thermal Resistance | 30°C/W junction-to-TAB1 - allows direct thermal coupling to PCB ground plane for passive cooling |
| ESD Rating | >16 kV per Human Body Model - provides robust handling during manual assembly and board-level testing |
| Knee Current | 0.25 mA at VZ = 42.6 V - defines minimum current needed to enter stable regulation region |
Pinout & Package
Package: Powermite® (DO-216AA), molded surface-mount case with full metallic bottom and integral heat-sink locking tab. Cathode is designated by TAB 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TAB 1 | Cathode | Primary heat-sink interface and electrical cathode connection; must be soldered to ≥1 sq-in copper for rated 3.0 W operation |
| Lead 2 | Anode | Standard anode terminal; electrically isolated from TAB 1; used for series connection in voltage-reference strings |
Key Features
| Feature | Design Value |
|---|---|
| Surface-mount Powermite® package | Enables automated placement and reflow without flux entrapment due to full metallic bottom |
| Integral heat-sink locking tab | Provides mechanical retention and direct thermal path from junction to PCB copper, reducing thermal resistance to 30°C/W |
| ±1% zener voltage tolerance | Eliminates need for post-assembly trimming in precision reference designs (suffix C denotes 1% grade) |
| ESD rating >16 kV HBM | Supports handling in non-ESD-controlled environments without additional protection circuitry |
| EIA-481 tape-and-reel packaging | Enables seamless integration into high-speed pick-and-place systems (13-inch reel: 12,000 pcs) |
Applications
| DC Power Rail Clamping | Feedback Reference for Switching Regulators |
|---|---|
Use Scenario: Protecting 48 V telecom line cards from surge-induced overvoltage events. IC Role / Device Role / Timing Role: Shunt-clamp device absorbing transient energy above 47 V threshold. Use Value: Limits rail voltage to ≤47.5 V during 10/1000 µs surges up to 3.0 W peak, preventing downstream IC damage. | Use Scenario: Providing stable 47 V reference for error amplifier input in isolated flyback converters. IC Role / Device Role / Timing Role: Precision voltage reference establishing output regulation setpoint. Use Value: Maintains ±1% output accuracy across –40°C to +125°C due to tight tolerance and low tempco inherent to Zener structure. |
| Programmable Overvoltage Detector | Low-Power Sensor Biasing |
Use Scenario: Triggering shutdown logic when battery voltage exceeds safe charging limit in 4S Li-ion packs. IC Role / Device Role / Timing Role: Threshold detector feeding comparator input via resistive divider. Use Value: Delivers repeatable 47 V trip point with <1 µA leakage, minimizing divider current error and extending battery life. | Use Scenario: Biasing avalanche photodiodes requiring stable reverse bias in optical smoke detectors. IC Role / Device Role / Timing Role: Low-noise, low-drift DC bias source. Use Value: Provides 47 V bias with 67 Ω dynamic impedance, suppressing ripple-induced signal noise in analog front-end stages. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMF47A (ON Semiconductor) | 47 V, ±5%, 1.0 W, SOD-123FL package, 120°C/W θJA | Lower power rating and higher thermal resistance limit use to <0.5 W continuous loads | Select when cost sensitivity outweighs power/thermal requirements and board space permits larger footprint |
| BZX84-C47 (Diodes Inc.) | 47 V, ±5%, 300 mW, SOT-23 package, no metallic thermal tab | Lacks integral heat sink; unsuitable for >300 mW sustained dissipation or high-reliability thermal cycling | Choose only for low-power signal-level referencing where PCB copper area is limited and thermal stress is minimal |
Compared with SMF47A and BZX84-C47, the 1PMT5941C/TR13 delivers 3× higher power capability, 4× lower thermal resistance, and 5× tighter voltage tolerance-making it the sole option for 47 V clamping or referencing in thermally constrained, high-reliability 3.0 W applications.
Availability
1PMT5941C/TR13 is available at Aetrix Electronics and suitable for DC power rail clamping, switching regulator feedback references, programmable overvoltage detection, and low-power sensor biasing requiring stable component supply across industrial, telecom, and automotive production programs.
Supply support for 1PMT5941C/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 RF solutions for aerospace, defense, and industrial markets.
The Powermite® Zener diode product line was designed to deliver high-power, surface-mount voltage regulation in ultra-compact packages with integrated thermal management-targeting space-constrained, high-temperature, and high-transient environments.
FAQ
What is the zener voltage tolerance for 1PMT5941C/TR13?
The "C" suffix in 1PMT5941C/TR13 specifies a ±1% zener voltage tolerance at 47 V, measured at 8.0 mA test current and TAB 1 temperature of 30°C. This is tighter than the standard ±5% (B suffix) and supports precision regulation without post-production calibration. The 1PMT5941C/TR13 achieves this via laser-trimmed wafer-level process control.
How is thermal performance specified for 1PMT5941C/TR13?
1PMT5941C/TR13 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. For full 3.0 W operation, TAB 1 must be maintained at ≤60°C-achievable with ≥1 square inch of 2-oz copper connected directly to TAB 1. Derating is required above 60°C TAB temperature.
Can 1PMT5941C/TR13 be used in automated SMT assembly?
Yes, 1PMT5941C/TR13 is supplied in EIA-481 compliant tape-and-reel format (13-inch reel: 12,000 pieces) and features a Powermite® package optimized for pick-and-place machines. Its full metallic bottom prevents solder flux entrapment, and the locking tab ensures mechanical stability during reflow-enabling high-yield, zero-defect automated assembly without special tooling.
What is the maximum reverse leakage current for 1PMT5941C/TR13?
The maximum reverse leakage current for 1PMT5941C/TR13 is <1 µA at a reverse voltage of 35.8 V (76% of nominal VZ), tested at TL = 30°C. This ultra-low leakage preserves battery life in always-on monitoring circuits and minimizes error in high-impedance reference dividers-critical for precision analog sensing applications using the 1PMT5941C/TR13.
Does 1PMT5941C/TR13 meet industry ESD standards?
Yes, 1PMT5941C/TR13 is rated for >16 kV per Human Body Model (HBM), exceeding JEDEC JS-001 Class 3A requirements. This level of ESD immunity allows safe handling during manual board rework, functional testing, and final system integration without requiring additional protection components-reducing BOM count and layout complexity in designs using the 1PMT5941C/TR13.
1PMT5941C/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
1PMT5941C/TR13 FAQ
1.How can I place an order for 1PMT5941C/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1PMT5941C/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 1PMT5941C/TR13 reliable?
The price and inventory of 1PMT5941C/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PMT5941C/TR13 is usually 5 days.
3.What payment methods are accepted for 1PMT5941C/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1PMT5941C/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1PMT5941C/TR13?
1PMT5941C/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1PMT5941C/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 1PMT5941C/TR13?
For technical support, including 1PMT5941C/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PMT5941C/TR13 requirements.
6.How does Aetrix verify that 1PMT5941C/TR13 is sourced from the original manufacturer or authorized distributors?
All 1PMT5941C/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 1PMT5941C/TR13 meets industry standards.
7.What is the process for return or replacement of 1PMT5941C/TR13?
All 1PMT5941C/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with 1PMT5941C/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 1PMT5941C/TR13 part is unused and in its original packaging.
Return procedure for 1PMT5941C/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1PMT5941C/TR13 Tags
-
MMBZ5240B-7-F
Diodes Incorporated
-
BZT52C5V6T-7
Diodes Incorporated
-
MMSZ5231B-7-F
Diodes Incorporated
-
BZT52C15-7-F
Diodes Incorporated
-
BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
-
MMSZ4682T1G
onsemi
-
BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
-
SMAJ4744A-TP
Micro Commercial Co
-
BZT52C3V6LP-7
Diodes Incorporated
-
SMAZ12-13-F
Diodes Incorporated
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
