Lib-electronic-components protekdevices

ProTek Devices MPN encoding patterns, TVS diode and ESD protection decoding, and handler guidance. Use when working with ProTek circuit protection components (TVS, GBLC, PSM, ULC, SMD series).

install

source · Clone the upstream repo

git clone https://github.com/Cantara/lib-electronic-components

Claude Code · Install into ~/.claude/skills/

T=$(mktemp -d) && git clone --depth=1 https://github.com/Cantara/lib-electronic-components "$T" && mkdir -p ~/.claude/skills && cp -r "$T/.claude/skills/manufacturers/protekdevices" ~/.claude/skills/cantara-lib-electronic-components-protekdevices && rm -rf "$T"

manifest: .claude/skills/manufacturers/protekdevices/SKILL.md

source content

ProTek Devices Manufacturer Skill

Overview

ProTek Devices specializes in circuit protection components:

TVS series: Standard TVS diodes
GBLC series: ESD protection devices
PSM series: Automotive/RS-232 protection
ULC series: Ultra-low capacitance ESD arrays
SMD series: Surface mount TVS diodes
SP series: Surge protection
LC series: Low capacitance TVS

MPN Structure

TVS Series (Standard TVS Diodes)

TVS[VOLTAGE][POWER][SUFFIX]
|      |       |       |
|      |       |       +-- -LF = lead-free, -TR = tape/reel
|      |       +-- 2-digit power code (00, 50, etc.)
|      +-- 3-digit voltage code (035 = 3.5V, 055 = 5.5V)
+-- TVS = Standard TVS diode series

Example: TVS03500
         |  |  ||
         |  |  |+-- 00 = Power level
         |  |  +-- 035 = 3.5V standoff voltage
         +-- TVS series

Example: TVS15000-LF
         |  |  || |
         |  |  || +-- LF = Lead-free
         |  |  |+-- 00 = Power level
         |  |  +-- 150 = 15V standoff voltage
         +-- TVS series

GBLC Series (ESD Protection)

GBLC[VOLTAGE]C[SUFFIX]
|       |    |    |
|       |    |    +-- -LF = lead-free, -TR = tape/reel
|       |    +-- C = Bidirectional
|       +-- 2-digit voltage code (03 = 3.3V, 05 = 5V)
+-- GBLC = ESD protection series

Example: GBLC03C
         |   | |
         |   | +-- C = Bidirectional
         |   +-- 03 = 3.3V
         +-- GBLC series

Example: GBLC15C-LF
         |   | | |
         |   | | +-- LF = Lead-free
         |   | +-- C = Bidirectional
         |   +-- 15 = 15V
         +-- GBLC series

PSM Series (Automotive/RS-232 Protection)

PSM[MODEL][-LF]
|     |      |
|     |      +-- -LF = Lead-free
|     +-- Model number (712 = RS-232, 05/12/24 = voltage)
+-- PSM = Protection for signal/data lines

Example: PSM712
         |  |
         |  +-- 712 = RS-232 protection (7V standoff)
         +-- PSM series

Example: PSM712-LF
         |  |  |
         |  |  +-- LF = Lead-free
         |  +-- 712 = RS-232 protection
         +-- PSM series

ULC Series (Ultra-Low Capacitance)

ULC[VOLTAGE][LINES][SUFFIX]
|      |       |       |
|      |       |       +-- -LF = lead-free, -TR = tape/reel
|      |       +-- 2-digit line count (12 = 12 lines, 24 = 24 lines)
|      +-- 2-digit voltage (05 = 5V)
+-- ULC = Ultra-low capacitance ESD array

Example: ULC0512
         |  | ||
         |  | |+-- 12 = 12 protection lines
         |  | +-- 05 = 5V
         +-- ULC series

Example: ULC0524-LF
         |  | || |
         |  | || +-- LF = Lead-free
         |  | |+-- 24 = 24 protection lines
         |  | +-- 05 = 5V
         +-- ULC series

SMD Series (Surface Mount TVS)

SMD[POWER][VOLTAGE][SUFFIX]
|     |       |        |
|     |       |        +-- -LF = lead-free, -TR = tape/reel
|     |       +-- 2-digit voltage (12 = 12V, 24 = 24V)
|     +-- 2-digit power code (05 = 500W, 15 = 1500W)
+-- SMD = Surface mount TVS

Example: SMD0512
         |  | ||
         |  | |+-- 12 = 12V standoff
         |  | +-- 05 = 500W power
         +-- SMD series

Example: SMD1524-LF
         |  | || |
         |  | || +-- LF = Lead-free
         |  | |+-- 24 = 24V standoff
         |  | +-- 15 = 1500W power
         +-- SMD series

Voltage Decoding

TVS Series

Code	Standoff Voltage	Clamping Voltage (typ)
035	3.5V	8.5V
055	5.5V	12V
100	10V	19V
150	15V	27V
200	20V	36V

GBLC Series

Code	Standoff Voltage	Application
03	3.3V	3.3V logic
05	5V	5V logic
08	8V	Data lines
15	15V	CAN/automotive

PSM Series

Model	Standoff Voltage	Application
712	7V	RS-232
05	5V	General
12	12V	Automotive
24	24V	Industrial

Power Ratings

TVS Series Power Codes

Code	Power Rating
00	Standard
50	500W

SMD Series Power Codes

Code	Power Rating	Package
05	500W	SMA (DO-214AC)
10	1000W	SMB (DO-214AA)
15	1500W	SMC (DO-214AB)
30	3000W	SMC

Package Types

Series	Default Package	Notes
TVS	SMB (DO-214AA)	Standard TVS
GBLC	SOT-23	Small ESD protection
PSM	SOIC-8	Multi-line protection
ULC (12-line)	SSOP-16	ESD array
ULC (24-line)	SSOP-28	ESD array
SMD05xx	SMA (DO-214AC)	500W
SMD10xx	SMB (DO-214AA)	1000W
SMD15xx	SMC (DO-214AB)	1500W
SP	SOT-23	Surge protection
LC	SOT-23	Low capacitance

Directionality

Bidirectional Devices

Series	Indicator	Notes
GBLC	C suffix	Always bidirectional (GBLCxxC)
PSM	(inherent)	Data line protection is bidirectional
ULC	(inherent)	ESD arrays are bidirectional

Unidirectional Devices

Series	Notes
TVS	Standard unidirectional unless specified
SMD	Standard unidirectional
SP	Typically unidirectional

Suffix Codes

Suffix	Meaning
-LF	Lead-free (RoHS compliant)
-TR	Tape and reel packaging
C	Bidirectional (GBLC series)
(none)	Standard packaging

Replacement Compatibility

ProTek parts are compatible when:

Same series (TVS vs TVS, GBLC vs GBLC)
Same voltage rating (03 = 03, 15 = 15)
Same directionality (bidirectional cannot replace unidirectional)
Same or higher power (for TVS/SMD series)

Lead-Free Compatibility

Lead-free (-LF) variants are interchangeable with standard variants:

PSM712 and PSM712-LF are functionally identical
-LF suffix only indicates RoHS compliance

Common Part Numbers

TVS Series

Part Number	Voltage	Package	Notes
TVS03500	3.5V	SMB	Standard
TVS05500	5.5V	SMB	Standard
TVS15000	15V	SMB	Standard

GBLC Series

Part Number	Voltage	Package	Notes
GBLC03C	3.3V	SOT-23	Bidirectional
GBLC05C	5V	SOT-23	Bidirectional
GBLC15C	15V	SOT-23	Bidirectional

PSM Series

Part Number	Voltage	Package	Application
PSM712	7V	SOIC-8	RS-232
PSM712-LF	7V	SOIC-8	RS-232, RoHS

ULC Series

Part Number	Voltage	Lines	Package
ULC0512	5V	12	SSOP-16
ULC0524	5V	24	SSOP-28

SMD Series

Part Number	Power	Voltage	Package
SMD0512	500W	12V	SMA
SMD1012	1000W	12V	SMB
SMD1524	1500W	24V	SMC

Handler Implementation Notes

Pattern Matching

// TVS series - Standard TVS Diodes
"^TVS[0-9]{5}.*"

// GBLC series - ESD Protection (with C suffix)
"^GBLC[0-9]{2}C.*"

// PSM series - Automotive/RS-232 Protection
"^PSM[0-9]+.*"

// ULC series - Ultra-Low Capacitance
"^ULC[0-9]{4}.*"

// SMD series - Surface Mount TVS
"^SMD[0-9]{4}.*"

// SP series - Surge Protection
"^SP[0-9]{2,3}.*"

// LC series - Low Capacitance
"^LC[0-9]{2}.*"

Voltage Extraction

String extractVoltage(String mpn) {
    String upperMpn = mpn.toUpperCase();

    // TVS series: TVS03500 -> 035 -> 3.5V
    if (upperMpn.startsWith("TVS")) {
        String voltageCode = upperMpn.substring(3, 6);  // e.g., "035"
        int voltageInt = Integer.parseInt(voltageCode);
        if (voltageInt < 100) {
            return String.format("%.1f", voltageInt / 10.0);  // 035 -> "3.5"
        }
        return String.valueOf(voltageInt / 10);  // 150 -> "15"
    }

    // GBLC series: GBLC03C -> 03 -> 3.3V
    if (upperMpn.startsWith("GBLC")) {
        String voltageCode = upperMpn.substring(4, 6);  // e.g., "03"
        int voltage = Integer.parseInt(voltageCode);
        if (voltage == 3) return "3.3";
        return String.valueOf(voltage);
    }

    // PSM series: PSM712 -> 7V (specific model)
    if (upperMpn.startsWith("PSM")) {
        if (upperMpn.contains("712")) return "7";
        // Extract numeric portion
    }

    // SMD series: SMD0512 -> 12V (last 2 digits)
    if (upperMpn.matches("^SMD[0-9]{4}.*")) {
        String voltageCode = upperMpn.substring(5, 7);  // e.g., "12"
        return String.valueOf(Integer.parseInt(voltageCode));
    }

    return "";
}

Power Rating Extraction

int getPowerRating(String mpn) {
    String upperMpn = mpn.toUpperCase();

    // SMD series: SMD0512 -> 05 -> 500W
    if (upperMpn.matches("^SMD[0-9]{4}.*")) {
        String powerCode = upperMpn.substring(3, 5);  // e.g., "05"
        return Integer.parseInt(powerCode) * 100;  // 05 -> 500W
    }

    // TVS series: last 2 digits encode power
    if (upperMpn.startsWith("TVS")) {
        String powerCode = upperMpn.substring(6, 8);  // e.g., "00"
        return Integer.parseInt(powerCode) * 10;  // 50 -> 500W
    }

    return 0;
}

Line Count Extraction (ULC series)

int getLineCount(String mpn) {
    String upperMpn = mpn.toUpperCase();

    // ULC series: ULC0512 -> 12 lines, ULC0524 -> 24 lines
    if (upperMpn.startsWith("ULC")) {
        String lineCode = upperMpn.substring(5, 7);  // e.g., "12"
        return Integer.parseInt(lineCode);
    }

    return 1;  // Default to single-channel
}

Related Files

Handler:
```
manufacturers/ProTekDevicesHandler.java
```
Component types:
```
DIODE
```
(all series registered as diodes)
No manufacturer-specific types defined

Application Selection Guide

Application	Recommended Series	Notes
Power supply protection	TVS, SMD	Higher power handling
USB/HDMI ESD	GBLC	Low capacitance
RS-232/RS-485	PSM712	Multi-line protection
High-speed data	ULC	Ultra-low capacitance
Automotive	PSM, GBLC15C	Voltage tolerance

Learnings & Edge Cases

GBLC always bidirectional: The "C" suffix indicates bidirectional, all GBLC parts have this
PSM712 specific: PSM712 is specifically for RS-232, uses 7V standoff for +/-12V signals
SMD naming: SMD series is named for package type, not to be confused with generic "SMD" term
ULC line count: Second 2 digits indicate number of protection lines (12, 24)
Voltage encoding varies: TVS uses 3 digits (divide by 10), GBLC uses 2 digits, SMD uses last 2 digits
Lead-free interchangeable: -LF suffix only affects manufacturing process, electrically identical