My Inquiry
My Account
Microchip Technology 1PMT5933/TR13
- Part No.:
- 1PMT5933/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-216AA
- Datasheet:
-
1PMT5933/TR13.pdf
- Description:
- DIODE ZENER 22V 3W DO216AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,747
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1PMT5933B from Microsemi is a 22 V, 3.0 W surface-mount Zener diode in the Powermite® package, featuring 17.5 Ω dynamic impedance at 17 mA test current, 1.0 µA max reverse leakage at 16.7 V, and thermal resistance of 30°C/W junction-to-tab. It serves as a precision voltage reference or overvoltage clamp in power supply regulation and transient protection circuits.
For engineers reviewing the 1PMT5933B datasheet, 1PMT5933B pinout, 1PMT5933B application, or 1PMT5933B equivalent, key selection criteria include zener voltage tolerance (±5% standard), ESD rating (>16 kV HBM), DC power dissipation (3.0 W with tab at 60°C), and compatibility with automated SMT insertion equipment.
Technical Context
This Zener diode operates with cathode designated by TAB 1 and supports mounting in any orientation. Its full metallic bottom eliminates solder flux entrapment, and the integral locking tab functions as a heat sink to enhance thermal performance under continuous 3.0 W dissipation.
The device exhibits low reverse leakage (≤1.0 µA at VR = 16.7 V), tight knee characteristics (IZK = 0.25 mA), and stable zener voltage across -55°C to +150°C junction temperature range - enabling reliable operation in industrial and automotive power rail conditioning.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 22 V ±5% at IZT = 17 mA - defines nominal clamping/reference level |
| Power Dissipation | 3.0 W with TAB 1 at 60°C - enables high-power SMT voltage regulation without external heatsink |
| Dynamic Impedance (ZZT) | 17.5 Ω at IZT = 17 mA - ensures stable output voltage under load variation |
| Reverse Leakage (IR) | ≤1.0 µA at VR = 16.7 V - minimizes standby power loss in bias networks |
| Thermal Resistance | 30°C/W junction-to-TAB1 - allows direct thermal path to PCB copper for thermal management |
| ESD Rating | >16 kV per HBM - provides robust handling in automated assembly and field environments |
| Junction Temp Range | -55°C to +150°C - supports operation in extended-temperature industrial and automotive applications |
Pinout & Package
Package: Powermite® surface-mount molded package with full metallic bottom and integral heat-sink locking tab; cathode identified by TAB 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TAB 1 | Cathode | Primary cathode terminal and thermal interface - must be connected to ground or low-impedance heat-sinking copper |
| Lead 2 | Anode | Standard anode connection - electrically isolated from TAB 1; used for series biasing or sensing |
Key Features
| Feature | Design Value |
|---|---|
| Surface-mount Powermite® package | Enables high-density PCB layout while delivering 3.0 W power handling comparable to through-hole DO-41 devices |
| Integral heat-sink locking tab | Provides mechanical retention during reflow and direct thermal conduction path from junction to PCB |
| Full metallic bottom | Eliminates solder flux entrapment risk - improves long-term reliability and reduces post-assembly cleaning requirements |
| ESD robustness | >16 kV HBM rating - protects against electrostatic discharge damage during handling and board-level integration |
Applications
| Switch-Mode Power Supply Feedback | Automotive Load Dump Protection |
|---|---|
Use Scenario: Regulating output voltage in isolated flyback or forward converters via optocoupler feedback loop. IC Role / Device Role / Timing Role: Precision voltage reference for TL431-like feedback network - sets regulated output with minimal drift. Use Value: 22 V zener voltage and 17.5 Ω dynamic impedance ensure stable regulation across line/load transients and temperature shifts. | Use Scenario: Clamping induced voltage spikes during battery disconnect or alternator load dump events in 12 V automotive systems. IC Role / Device Role / Timing Role: Overvoltage protection element placed across sensitive IC inputs or microcontroller power rails. Use Value: 3.0 W power rating and 30°C/W thermal resistance allow safe absorption of 100 ms, 40 V transients without thermal runaway. |
| Industrial Sensor Biasing | Programmable Logic Controller I/O Protection |
Use Scenario: Providing stable excitation voltage for resistive bridge sensors (e.g., strain gauges) in factory automation equipment. IC Role / Device Role / Timing Role: Low-drift voltage reference source - replaces larger TO-92 Zeners where space and thermal performance are constrained. Use Value: ≤1.0 µA reverse leakage at 16.7 V minimizes error contribution in high-impedance sensor bias networks. | Use Scenario: Protecting digital input channels on PLC modules from ESD and surge events in harsh factory environments. IC Role / Device Role / Timing Role: Primary clamping device on 24 V DC input lines - shunts fast transients before they reach downstream protection ICs. Use Value: >16 kV HBM ESD rating and robust 3.0 W surge capability reduce field failure rates in unshielded industrial enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor 1N5355B | 22 V, 5 W, DO-204AL package; higher power but larger footprint and no integrated heat-sink tab | Preferred where higher surge energy handling is required and board space permits through-hole or larger SMT footprint | Select when >3.0 W peak pulse power is needed and thermal path to PCB is less critical |
| Vishay SZ1SMA5922-TP | 22 V, 1.5 W, SMA package; lower power rating, no metallic bottom or locking tab, 1000 V ESD rating | Suitable for cost-sensitive consumer applications with moderate reliability requirements | Select only for non-critical, low-duty-cycle biasing where thermal performance and ESD robustness are secondary |
Compared with 1N5355B and SZ1SMA5922-TP, the 1PMT5933B delivers superior thermal management via its Powermite® locking tab and metallic bottom, making it optimal for sustained 3.0 W operation in compact industrial designs where reliability and automated assembly compatibility are essential.
Availability
1PMT5933B is available at Aetrix Electronics and suitable for switch-mode power supplies, automotive load-dump protection, and industrial sensor biasing requiring stable component supply and consistent parametric performance across production lots.
Supply support for 1PMT5933B 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 for high-power density, thermally efficient voltage regulation in space-constrained industrial and automotive power systems - emphasizing robustness, automated assembly compatibility, and extended temperature operation.
FAQ
What is the zener voltage tolerance for 1PMT5933B?
The standard 1PMT5933B has a zener voltage tolerance of ±5% at 22 V. Tighter tolerances of ±2% (suffix C) and ±1% (suffix D) are available upon request. Voltage is measured at IZT = 17 mA with TAB 1 held at 30°C, and readings must be taken within 20 seconds of applying DC current to avoid thermal drift effects on the 1PMT5933B measurement.
How is thermal management handled in the 1PMT5933B package?
The 1PMT5933B uses a Powermite® package with an integral locking tab (TAB 1) that serves as both cathode and primary thermal interface. Its thermal resistance is 30°C/W junction-to-tab, enabling direct conduction to PCB copper. The full metallic bottom eliminates flux entrapment and enhances heat spreading - critical for maintaining 1PMT5933B reliability at 3.0 W continuous dissipation.
Can the 1PMT5933B be used in automotive applications?
Yes, the 1PMT5933B is qualified for automotive use with a junction temperature range of -55°C to +150°C and >16 kV HBM ESD rating. Its 3.0 W power rating and robust construction make it suitable for load-dump clamping and ECU power rail stabilization. Designers should verify 1PMT5933B compliance with AEC-Q101 if required for specific vehicle platforms.
What is the maximum reverse leakage current for 1PMT5933B?
The maximum reverse leakage current for 1PMT5933B is 1.0 µA at a reverse voltage of 16.7 V and ambient temperature of 30°C. This low leakage supports high-impedance bias networks and minimizes quiescent power loss - especially important in battery-powered or precision sensor applications using the 1PMT5933B as a reference.
Is the 1PMT5933B compatible with automated SMT assembly processes?
Yes, the 1PMT5933B is explicitly designed for compatibility with automatic insertion equipment. Its Powermite® package features a unique locking tab that aids pick-and-place accuracy and mechanical stability during reflow. It is supplied in EIA-481 tape-and-reel format (3,000 pcs per 7-inch reel), ensuring seamless integration into high-volume SMT lines using the 1PMT5933B.
1PMT5933/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):
- 22 V
- Tolerance:
- ±20%
- Power - Max:
- 3 W
- Impedance (Max) (Zzt):
- 17.5 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 16.7 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
1PMT5933/TR13 FAQ
1.How can I place an order for 1PMT5933/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1PMT5933/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 1PMT5933/TR13 reliable?
The price and inventory of 1PMT5933/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PMT5933/TR13 is usually 5 days.
3.What payment methods are accepted for 1PMT5933/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1PMT5933/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1PMT5933/TR13?
1PMT5933/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1PMT5933/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 1PMT5933/TR13?
For technical support, including 1PMT5933/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PMT5933/TR13 requirements.
6.How does Aetrix verify that 1PMT5933/TR13 is sourced from the original manufacturer or authorized distributors?
All 1PMT5933/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 1PMT5933/TR13 meets industry standards.
7.What is the process for return or replacement of 1PMT5933/TR13?
All 1PMT5933/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with 1PMT5933/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 1PMT5933/TR13 part is unused and in its original packaging.
Return procedure for 1PMT5933/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1PMT5933/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…
