Equivalent & Substitute Parts for PACA-4000

Part Overview

PACA-4000 is a thumbwheel switch by ZF Electronics, providing BCD output for panel mount applications. It features a 0.1A contact rating at 50VAC/DC, pushwheel actuator, and a display height of 0.120" (3.00mm). The part is classified as obsolete. Identifying equivalent substitute switches is necessary to support existing designs, repairs, or replacements using stocked and active components with matching parameters.

Substiute Parts

PACA-4000

ZF ElectronicsIn Stock: 685PACA-4000 Datasheet

Current PartRFQ

PICOD131ALD2

APEM Inc.In Stock: 984PICOD131ALD2 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution is determined exclusively by matching the following parameters between PACA-4000 and alternate thumbwheel switches:

• Output Code (BCD)
• Read Out (0 ~ 9)
• Number of Sections (1)
• Display Characters - Height
• Actuator Type (Pushwheel)
• Contact Rating @ Voltage (minimum equivalent rating)
• Mounting Type (Panel Mount, Snap-In)
• Termination Style
• Section Width
• Operating Temperature
• Depth Behind Flange
• Housing Material
• Color
• RoHS Status
• Moisture Sensitivity Level (MSL)

Only parts explicitly matching these parameters are selected as substitutes.

Parameter Comparison

Engineering Selection Recommendations

PACA-4000 is identified as obsolete, while PICOD131ALD2 from APEM Inc. is currently active and RoHS3 compliant. Both parts specify an MSL of 1 (unlimited), ensuring compatibility with standard storage and handling conditions. Selection is based on current product status and regulatory compliance as specified.

Frequently Asked Questions (FAQ)

Q: What parameters are critical when substituting PACA-4000 thumbwheel switches?
A: Output code (BCD), readout range, number of sections, display height, actuator type, contact rating and voltage, mounting, termination style, section width, operating temperature range, depth behind flange, housing material, color, and regulatory compliance.

Q: Is the contact rating at 40VAC/DC for PICOD131ALD2 acceptable as a substitute for PACA-4000’s 50VAC/DC?
A: Substitution is listed only as explicitly provided; selection according to the listed ratings is required.

Q: How critical is display character height or physical compatibility in selection?
A: Only substitutions with matching or closely specified display character height, mounting type, section width, and depth behind flange are included, as provided in the input.

Q: Are the substitute end caps compatible?
A: Both PACA-4000 and PICOD131ALD2 specify end caps are sold separately.

Q: What packaging options are available for these substitutes?
A: PACA-4000 was provided in bulk. PICOD131ALD2 is provided in tray packaging, as specified. Both are offered as new original stock according to the data provided.

Q: What compliance standards are required for these thumbwheel switches?
A: Both PACA-4000 and PICOD131ALD2 are RoHS3 compliant and have an MSL of 1 (unlimited), as indicated by the provided parameters.